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UNIVERSITI TEKNOLOGI MALAY

1. 36 cb setText Wifi is enabled else cb setChecked false cb setText Wifi is disabled public void onCheckedChanged CompoundButton button View boolean isChecked if asChecked if mWm setWifiEnabled true cb setText Wifi is enabled else cb setChecked false cb setText Attempt to enable failed j else if mWm setWifiEnabled false cb setText Wifi is disabled else cb setChecked true cb setText Attempt to disable failed The WiFi class act as enable or disable the Wi Fi service The first line shows the mWm is registered with Wi Fi service The first if statement is to check whether the Wi Fi is already enable or disable and set the check box to true or false accordingly At the same time the text view will shows whether the Wi Fi is enable or disable The second if statement implement if the check box is checked it will enable the Wi Fi and vice versa 37 3 6 3 5 Implement Bluetooth application refer to Appendix C public void connect mBluetoothAdapter BluetoothAdapter getDefaultAdapter BluetoothDevice device mBluetoothAdapter getRemoteDevice address BluetoothSocket tmp null Get a BluetoothSocket for a connection with the given BluetoothDevice try tmp device createRfcommSocketToServiceRecord MY_UUID catch IOException e BluetoothSocket mmSocket tmp mBluetoothAdapter cancelDiscovery Make a connection to the
2. id AbsoluteLayout0l android layout_width fill_parent android layout_height fill_parent xmlns android http schemas android com apk res android gt lt TextView android layout_height wrap_content android id id TextView0O1 android layout_width wrap_content andro1d text This application enable the WiFi to be connected automatically If still cant be connected please click on button below to refresh android layout_x O0dip android layout_y 20dip android textSize 20dip gt lt TextView gt lt Button android text Refresh android layout_width fill_parent android layout_x Odip android layout_height 50dip android id id ok android layout_y 250dip gt lt Button gt lt TextView android text id TextView02 android layout_y 140dip android layout_width 300dip android id id text android layout_x 10dip android layout_height 30dip android textSize 15dip gt lt TextView gt lt TextView android text id TextView02 android layout_width 300dip android layout_x 10dip android layout_y 1S0dip android layout_height 30dip android id id textl android textSize 15dip gt lt TextView gt lt AbsoluteLayout gt APPENDIX N Source code for arrays xml and strings xml 1 arrays xml lt xml version 0 encoding utf 8 gt lt resources gt lt string array name connection gt lt item gt Bluetooth lt item gt lt item gt Wi1Fi lt item gt lt item gt VideoRec
3. 3 Learn Java programming language Lit MN tema 4 Learn to program in Android platform using Eclipse Galileo OOOO Pr El 5 Develop video recording application MIN ee Waa de ne AAA Figure 1 3 1 Gantt chart for Semester 1 Figure 1 3 1 shows the Gantt chart for 1 semester During that time I study some information regarding available PDA phones in the market suitable for working with Bluetooth data transferring compatible with the developed monitoring system available tools and necessary APIs to develop an application in PDA phone Finally the Android PDA phone HTC Magic 1s choose as a monitoring device In order to develop an application in this PDA phone Java programming language 1s needed and I started to learn this programming language After knowing some basic of Java programming language I begin to learn to program simple applications by using Eclipse Galileo software This software allows me to test application on emulator without the need to test on real PDA phone Then I started to develop video recording application I successfully developed this application and the recorded video is saved in the SD card Activities FYP 2 Time week 11121 31 a 5 6 7 8 9 10 11 12 13 14 15 16 III Ip yt W Oi A 2 Develop Bluetooth connectivity application WEN Py tf ff dp pop A Oe Oe 3 Test on connect and receive ECG signal from receiver PL yf pd PT ff pd AAA 1 Develop Wi Fi connectivity application PIP P
4. MOLEC Mp4 XV LIST OF ABBREVIATION Analog to Digital Android Development Tools Access Point Application Programming Interface Atrioventricular Beats per minutes Basic Service Set Distribution System Electrocardiography Extended Service Set Full function Device Graphical User Interface Independent Basic Service Set Integrated Development Environment International Electrical Commission Institute of Electrical and Electronic Engineers Internet Protocol Local Area Network Low Rate Wireless Personal Area Network Media Access Control Medical Data Interface ZigBee Medical Data Interface ZigBee Bluetooth Megahertz Monitorizaci n On Line de Enfermos del Coraz n On Line Monitoring for Heart Patients MPEG Layer 4 Audio PCMCIA PDA POS RAM ROM RFCOMM RFD SA SD SDK SDP SSID USA UTM UUID WBAN Wi Fi WPAN XML XVI Personal Computer Memory Card International Association Personal Digital Assistant Personal Operating Space Random Access Memory Read Only Memory Radio Frequency Communication Reduced function Device Sinoatrial Secure Digital Software Development Kit Service Discovery Protocol Service Set Identifier United States of America Universiti Teknologi Malaysia Universal Unique Identifier Wireless Body Area Network Wireless Fidelity Wireless Personal Area Network Extensible Markup Language APPENDIX COB e2 eRe SK ao ta Soe LIST OF APPENDICES TITLE Source code for
5. public class HelloAndroid extends Activity implements OnClickListener Called when the activity is first created private WifiManager wifiManager private int globalCounter 0 private static final String CHOSEN_HOTSPOT myhotspot private TextView showtext private TextView showtextl Override public void onCreate Bundle savedInstanceState super onCreate savedInstanceState setContent View R layout fifth Button button Button find ViewB yId R id ok button setOnClickListener this showtext TextView findViewByld R id text showtext setText Not connected Click on Refresh button showtextl TextView find ViewB yId R 1d textl 75 76 showtextl setText Not connected Click on Refresh button wifiManager WifiManager getSystemService Context WIFI_SER VICE register the broadcast receiver for wifi state events IntentFilter filter new IntentFilter filter addAction WifiManager NETWORK_IDS_CHANGED_ACTION filter addAction WifiManager NETWORK_STATE_CHANGED_ACTION filter addAction WifiManager SCAN_RESULTS_AVAILABLE_ACTION filter addAction WifiManager SUPPLICANT_CONNECTION_CHANGE_ACTION filter addAction WifiManager SUPPLICANT_STATE_CHANGED_ACTION filter addAction WifiManager EXTRA_SUPPLICANT_ERROR filter addAction WifiManager WIFI_STATE_CHANGED_ACTION filter addAction WifiManager RSSIl CHANGED_ACTION registerReceiver wifiEventReceiver filter public void o
6. These handheld devices are provided with an operating system to support application software and make it easy for the development This framework opens the door to the emergence of a wide range of innovative applications that can be supported by current PDAs and Smartphone devices which are becoming more and more popular and familiar for standard users 7 12 Due to the new capabilities and features of mobile handsets it becoming more popular in the field of health care and telemedicine For example J M Cano Carcia proposed using the Linux operating system as application framework for the PDA and Desktop Server computer 7 She choose HP IPAQ H3970 PDA phone as her portable monitoring device However this project choose Android PDA phone as a portable monitoring device 2 2 Introduce Android Android is a mobile operating system that uses a modified version of the Linux kernel It was initially developed by Android Incorporated a firm later purchased by Google and lately by the Open Handset Alliance It allows developers to write managed code in the Java programming language The Android SDK provides the tools and APIs to start developing applications on the Android platform Besides it also includes a comprehensive set of development tools such as debugger libraries a handset emulator documentation sample code and tutorials Furthermore Android offers developers to develop extremely rich and innovative applications
7. gt lt RadioButton gt lt RadioButton android layout_width wrap_content android layout_height wrap_content android id id RadioButton04 android text Doctor4 android layout_x 340dip android layout_y 250dip gt lt RadioButton gt lt RadioGroup gt lt AbsoluteLayout gt 86 APPENDIX L Source code for fourth xml lt xml version 0 encoding utf 8 gt lt LinearLayout xmlns android http schemas android com apk res android android orientation vertical android layout_width fill_parent android layout_height fill_parent gt lt TextView android layout_width fill_parent android layout_height wrap_content lt LinearLayout android layout_width wrap_content android layout_height wrap_content android id id top gt lt LinearLayout gt lt CheckBox android text id CheckBox01 android id id check android layout_height 00dip android layout_width fill_parent gt lt CheckBox gt lt TextView android layout_width wrap_content android layout_height wrap_content android textSize 20dip android text Click Next to Connect Available Wifi android id id text gt lt TextView gt lt Button android id id test android text Next android layout_height fill_parent android layout_width fill_parent gt lt Button gt lt LinearLayout gt 87 APPENDIX M Source code for fifth xml lt xml version 0 encoding utf 8 gt lt AbsoluteLayout android id
8. Atrioventricular Node MY aN C As Left Posterior AVN T Fascicle LPS Right Bundle A Y PRAY Branch RBB DS Left Ventricle Left Anterior z Fascicle LAF Right Ventricle Purkinje Fibers PE Figure 2 3 1 Cardiac conduction system The electrical activity of the heart originates in the SA node located in the wall of the right atrium Then the impulse is increasingly spreads through the right atrium to the AV node After some time at AV node the impulse spreads slowly through the bundle of his the bundle branches the Purkinje network and finally the ventricular muscle The first area of the ventricular muscle to be activated 1s the inter ventricular septum which activates from left to right Lastly the impulse divides into the Purkinje network of fibers that proceed vertically to the surface of the heart 12 16 Segment _ e 90M A J Point ek ON e a a a Ea m 4 PR INTERV AL Figure 2 3 2 Points and elements of ECG signal 2 4 2 Electrocardiography Signals The ECG waveform is divided into P Q R S T and U elements 13 The P wave corresponds to atrial depolarization that shows contraction of both left and right atria Normal duration of P wave is between 0 06 to 0 12 seconds The QRS complex represents depolarization of the ventricles The duration of the QRS complex shows how long excitation takes to spread
9. BluetoothSocket try This is a blocking call and will only return on a successful connection or an exception mmsSocket connect catch IOException e try mmSocket close catch IOException e2 j j j In order to initiate a connection with a remote device a device holding an open server socket the BluetoothDevice object representing remote device must be 38 obtain first By using the BluetoothDevice the BluetoothSocket can be obtain by calling createRfcommSocketToServiceRecord UUID This will initializes a BluetoothSocket that will connect to the BluetoothDevice The UUID passed here must match the UUID used by the server device The connection can be initiate by calling the connect By calling this the system will perform an SDP lookup on the remote device to match the UUID 1f the lookup is successful and the remote device accepts the connection it will share the RFCOMM channel to use during the connection 3 6 3 6 Plot ECG and display heart rate pulse value refer to Appendix C and D for m lt secondsLeft m rat m readint123 128 diff h m graphheight rat m lasth m h m j for int j 0 j lt secondsLeft j canvas drawLine G colwidth horstart 1 halfcol border lasth j graphheight j 1 colwidth horstart 1 halfcol border h j 1 graphheight paint lasth j h j j In order to plot ECG graph drawLine is called Th
10. androidone java Source code for Activity2 java Source code for newgraph java Source code for GrapView java Source code for WiFi java Source code for HelloAndroid java Source code for VideoRecording java Source code for CamcorderPreview java Source code for main xml Source code for second xml Source code for third xml Source code for fourth xml Source code for fifth xml Source code for arrays xml and strings xml Source code for AndroidManifest xml Source code for computer Bluetooth application PAGE 63 64 66 70 73 75 79 81 83 84 85 86 87 88 89 91 XVil CHAPTER 1 INTRODUCTION 1 1 Problem background With the advancement of medical technologies and living standard the span of human life has been extended and the population of living alone elders have increased Due to this situation a portable intensive monitoring system help in assisting the elders life is becoming important By measuring both the biosignals and activity signals at the same time can help to improve the quality of life by maintaining and managing healthy life Biosignal like ECG has been studies as the most frequently used indicator for diagnosing cardiovascular diseases and a system has been developed to measure individuals health condition through intensive monitoring of ECG 1 The holters system is among the first group to stand out for developing real time ECG monitoring system 2 This system is utilized by placing electrode
11. developed using C sharp programming language al Formi Figure 3 19 GUI for computer Bluetooth application 1 Figure 3 19 shows the GUI for computer Bluetooth application The user 1s asked to click on the Start button in order to start transferring data for one COM port to the other COM port 50 Stop 114 115119 127 136 144 146 146 139 130 122 118 116 116 117 115 110 120 166 222 236 194 143 119 115115 122 117122131 175 180 182 180 1 4 166 Figure 3 20 GUI for computer Bluetooth application 2 Figure 3 20 shows the GUI for successfully data transferring between 2 COM port devices The text boss shows the data transferring values This 1s to ensure data 1s transferring between 2 COM ports The Stop button 1s used to stop data transferring between 2 COM port devices ad Form1 Stop The port COM11 does not exist Figure 3 21 GUI for computer Bluetooth application 3 51 stop Access to the port COM11 is denied Figure 3 22 GUI for computer Bluetooth application 4 In case the user fail to do data transferring between 2 devices this may due to the COM port problem Figure 3 21 and figure 3 22 show the common problem faced for the COM port error The COM port in this application is hardcoded The user may need to change the COM port if find that the COM port didn t mapped to your computer and Android phone COM ports 52 CHAPTER 4 TEST RESULT AND ANALYSIS 4 1 Objective and
12. officially new firmware version 2 1 is estimated to release in mid of 2010 Again this PDA phone has the general features such as camera Wi Fi and Bluetooth which suite in this project The computer acts as a medium to communicate MDIzb and PDA The software used to communicate between these 2 devices 1s BlueSoleil 6 0 trial version and the computer must support Bluetooth BlueSoleil 6 0 trial version enables the user to connect more than 2 Bluetooth devices at the same time 11 CHAPTER 2 LITERATURE REVIEW 2 1 Introduction Due to the advancement of technology in the field of mobile communications it lead to the deployment of packet data services over cellular mobile systems and giving support for the deployment of new applications At the same time the increase of the number of subscribers to mobile telephony systems has lead to the proliferation of a wide range of wireless handsets An increasing effort has been devoted to the development of low power and high performance embedded microprocessors with multimedia capabilities due to the popularization of such devices has promoted a growing interest to continuously improve their features and performance Similarly a significant enhancement of the development tools and software support for these platform has been achieved As a result PDA and Smartphone delivering capabilities comparable to those exhibited by desktop computers including wireless internet access and multimedia support
13. textSize 25px gt lt TextView gt lt Button android text START android id id Start android layout_gravity center android layout_height 60px andro1d layout_width 280px gt lt Button gt lt LinearLayout gt 84 APPENDIX J Source code for second xml lt xml version 0 encoding utf 8 gt lt AbsoluteLayout android id id AbsoluteLayout0l android background FFFFFF android layout_width fill_parent android layout_height fill_parent xmlns android http schemas android com apk res android gt lt Spinner android layout_height wrap_content andro1d layout_width 260px android layout_x 35dip android layout_y 250dip android id id spinner android prompt string connection_prompt gt lt Spinner gt lt TextView android layout_width wrap_content android id id TextView01 android textSize 75px android layout_height wrap_content android layout_x 60dip android layout_y 220dip andro1d text Please choose a connection gt lt TextView gt lt Button android layout_height wrap_content android layout_y 305dip android layout_width 260px android layout_x 35dip android text Click on setting android id id setting gt lt Button gt lt SurfaceView android id id surface_camera android layout_height 90px android layout_width 2 0px android layout_x 5Sdip android layout_y 15dip gt lt SurfaceView gt lt Button android layout_height wrap_c
14. the start button allow transferring of ECG data from one COM port to other COM port and stop button for stopping transferring of data This program is developed using C sharp programming language and visual studio 2008 3 4 5 Plot ECG and display heart rate pulse value A new class will be implemented for plotting ECG signal An ECG simulator will be used as replacement for the human body in order to get accurate result The ECG wave sample points are transmitted continuously with 50 100 or 300 bytes per second according to the user s last command The curve sample points lie between 0 and 246 For every single transmission of ECG data a handler will be implemented to handle the message and pass the ECG data to GraphView class and invalidate function for redrawing the view Graph View class is implemented as a layout for plotting the ECG data This class is being called for every single transmission of ECG data A drawline function is used to plot the ECG signal In order to draw a line there must be at least 2 points and this function have four arguments starting x y point and ending x y point After plotting from the first point to second point the second point need to be save as the starting point and third point as the ending point and continuously For the heart rate pulse value it values are integrated along with the ECG data The values which are higher than 246 OxF6 are used for marking the following byte a
15. the user select Wi Fi application there will be a check box and a button The check box is used to enable or disable the Wi Fi while the Next button is used to load the next layout After user click on the button a new layout appeared by a Refresh button By clicking on the Refresh button it will automatically connected to the remember hotspot After connecting the hotspot there will be 2 texts which display the IP address and SSID for the connected hotspot 3 4 4 Develop Bluetooth application The Bluetooth require pairing with the remote devices before connecting on each others For PDA Bluetooth application the user need to manually enable and pairing the Bluetooth device before starting to communicate with computer The MAC address for the computer is hardcoded into the PDA Bluetooth application If PDA and computer already pairing with each others they will automatically connecting each other when this application is launched While for the computer Bluetooth application when the MDIzb and PDA are connected to the computer they are connected to the different COM port Different COM port does not allow transferring data between these two devices An application has been developed to solve this problem by allowing specific COM port 29 to write to different COM port The GUI shows 2 buttons one is start button and the other one is stop button When MDIzb and PDA are connected to computer by clicking
16. typically operate in the POS of 10m ZigBee provides self organized multi hop and reliable mesh networking with long battery lifetime 15 16 Two different device types can participate in an LR WPAN network a FFD and a RFD The FFD can operate in three modes serving as a PAN coordinator a coordinator or a device An FFD can talk to RFDs or other FFDs while an RFD can talk only to an FFD An RFD is intended for applications that are extremely simple such as a light switch or a passive infrared sensor They do not need to send large amounts of data and only associate with a single FFD at a time Consequently the RFD can be implemented using minimal resources and memory capacity After an FFD is activated for the first time it may establish its own network and become the PAN coordinator All star networks operate independently from all other star networks currently in operation This 1s achieved by choosing a PAN identifier which is not currently used by any other network within the radio sphere of influence Once the PAN identifier 1s chosen the PAN coordinator can allow other devices to join its network An RFD may connect to a cluster tree network as a leave node at the end of a branch because it may only associate with one FFD at a time Any of the FFDs may act as a coordinator and provide synchronization services to other devices or other coordinators Only one of these coordinators can be the overall PAN coordinator which may have greater
17. yellow electrode is for the left arm and the black electrode is for the right leg and thus forming a triangle Figure 1 4 shows the characteristics of MDIz parameter Value Antenna type omni antenna gain transmitter 1 dBi gain receiver 1 dBi receiver sensitivity 92 dBm indoor coverage range 30 m line of sight range 100 m Zigbee module channel frequency 2 411 GHz bandwidth 1 359 MHz data rate 115200 bps Figure 1 4 Characteristics of MDIz The MDIzb acts on convert the ZigBee ECG data to Bluetooth ECG data The Bluetooth interface build in this device does not required paring code and lead to low security that allow anyone to access the data Figure 1 5 shows the characteristics of MDIzb parameter Value Antenna type omni antenna gain transmitter 1 dBi gain receiver dBi average power 80 dBm line of sight range 100 m Bluetooth module channel frequency 2411 GHz bandwidth 1 359 GHz data rate 723300 bps Figure 1 5 Characteristics of MDIzb 10 Besides the Android PDA phone is equipped with a Qualcomm MSM7200A 528 Mhz processor 288MB RAM and 512 ROM and coming with firmware version 1 6 This firmware version does not allow the developers to develop Bluetooth application Due to this problem the firmware has been upgraded to unofficially Eclair version 2 1 Although this firmware version allow the developers to develop their Bluetooth application but this firmware is not stable as compare to version 1 6 and
18. Interface Cardiac conduction system Points and elements of ECG signal Block diagram of MDIz Frame of MDIz Block diagram of MDIzb Frame of MDIzb Algorithm structure for connecting MDIZ MDIZB computer and PDA Main flow chart Definition of data stream sent by the module Example of a received data stream at the host side Source code structure Casing photos System photo Main GUI Second Layout PAGE O DO 0 N A 13 15 16 19 19 20 20 25 26 30 30 31 40 41 42 43 xii 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 301 309 4 1 4 2 4 3 4 4 4 5 4 6 Spinner GUI for Wi Fi application 1 GUI for Wi Fi application 2 GUI for Wi Fi application 3 Connected WiFi GUI GUI for video recording application GUI for ECG plot BlueSoleil 6 0 Interface 1 BlueSoleil 6 0 Interface 2 GUI for computer Bluetooth application 1 GUI for computer Bluetooth application 2 GUI for computer Bluetooth application 3 GUI for computer Bluetooth application 4 ECG plot for 240 BPM ECG plot for 180 BPM ECG plot for 120 BPM ECG plot for 60 BPM ECG plot for 30 BPM ECG plot for 60 BPM 43 44 44 45 46 46 47 48 48 49 50 50 5 53 54 55 55 56 57 xiii TABLE No LIST OF TABLES TITLE Comparison between HTC MAGIC and HP IPAQ H3970 PDA PAGE 21 XIV AD ADT AP API AV BPM BSS DS ECG ESS FFD GUI IBSS IDE IEC IEEE IP LAN LR WPAN MAC MDIz MDIzb Mhz
19. Man amp Cybernetics Taipei Taiwan Oct 2006 pp 1462 1467 62 17 http developer android com guide topics ui declaring layout html 18 http developer android com guide topics manifest manifest intro html 19 E Supriyanto H Satria I H Mulyadi and E H Putra A NOVEL LOW COST TELEMEDICINE SYSTEM USING WIRELESS MESH NETWORK Faculty of Biomedical Engineering and Health Science Faculty of Electrical Engineering Universiti Teknologi Malaysia 63 APPENDIX A Source code for androidone java package com example androidone import android app Activity import android os Bundle import android view View import android content Intent import android widget Button public class androidone extends Activity Called when the activity is first created Override public void onCreate Bundle savedInstanceState super onCreate savedInstanceState setContent View R layout main Button button Button find ViewB yId R id Start button1 setOnClickListener new View OnClickListener public void onClick View view Intent myIntent new Intent view getContext Activity2 class startActivityForResult myIntent 0 APPENDIX B Source code for Activity2 java package com example androidone import android app Activity import android content Intent import android os Bundle import android view View import android widget Array Adapter import android widg
20. MotionEvent ACTION_DOWN if recording mSurface View getRecorder stop 79 mSurface View getRecorder release finishQ onDestroy else recording true mSurface View getRecorder start j return true j return false j 1 j Override public void onDestroy super onDestroy try catch Exception ex 80 81 APPENDIX H Source code for CamcorderPreview java package com example androidone import java io OException import android content Context import android media MediaRecorder import android util AttributeSet import android util Log import android view SurfaceHolder import android view Surface View public class CamcorderPreview extends Surface View implements SurfaceHolder Callback MediaRecorder recorder SurfaceHolder holder public CamcorderPreview Context context AttributeSet attrs super context attrs holder getHolder holder addCallback this holder setType SurfaceHolder SURFACE_TYPE_PUSH_BUFFERS recorder new MediaRecorder recorder set VideoSource MediaRecorder VideoSource DEFAULT recorder setOutputFormat MediaRecorder OutputFormat MPEG_4 recorder set VideoEncoder MediaRecorder VideoEncoder MPEG_4 SP j Override public void surfaceChanged SurfaceHolder holder int format int width int height j Override public void surfaceCreated SurfaceHolder holder recorder setOutputFile sdcard test mp4 rec
21. NTS LIST OF FIGURES LIST OF TABLES LIST OF ABBREVIATIONS LIST OF APPENDICES INTRODUCTION 1 1 Problem background 1 2 Alternative solution 1 3 Objective and scope 14 Methodology 1 4 1 Work flow 1 4 2 Block diagram 1 4 3 Gantt chart 1 4 4 Resource LITERATURE REVIEW 2 1 Introduction 2 2 Introduce android 23 Eclipse Galileo viii PAGE jii 1v vi vil vili xii XIV XV xvii oO N A a a A N e m 11 11 12 13 2 4 23 2 6 2l 2 8 Electrocardiography 2 4 1 Electricity of the heart 2 4 2 Electrocardiography signal Bluetooth wireless communication technology ZigBee wireless communication technology Wireless Medical Interface Solution comparison DESIGN AND IMPLEMENTATION 3 1 3 2 3 3 3 4 ae 3 6 Design specification 3 1 1 GUI for video recording Wi Fi and Bluetooth applications 3 1 2 Video recording application 3 1 3 Wi Fi application 3 1 4 Bluetooth application 3 1 4 1 PDA Bluetooth application 3 1 4 2 Computer Bluetooth application 3 1 5 Plotting ECG and display heart rate Algorithm structure for connecting MDIz MDIzb computer and PDA Main flow chart Sub flow charts and explanation 3 4 1 Develop GUI for video recording Wi Fi and Bluetooth application 3 4 2 Develop video recording application 3 4 3 Develop Wi Fi application 3 4 4 Develop Bluetooth application 3 4 5 Plot ECG and display heart rate pulse value Source code structure Detail source code and expla
22. P PEPE 4 Integrate all the programs into single application ee LE ae EERE EERE ESEE 5 Thesis writing BETE ENE 6 Preparation for the FYP presentation AA A hor leo o coo ooo te Figure 1 3 2 Gantt chart for Semester 2 Figure 1 3 2 shows the Gantt chart for 2 semester During 2 semester I started to develop W1 Fi application This application works on enable the Wi Fi without going through the setting Again this application can connect to the previous remembered hotspot automatically After finishing W1 Fi application I started to work on Bluetooth application This application required pairing the MDIzb before trying to connect on each other for the data transferring Due to the primitive Bluetooth used in MDIzb this device does not provide pairing code and lead to the pairing problem So a computer is choose as a medium to connect the MDIzb and PDA via Bluetooth A program has been developed to solve this problem on data transferring between these 2 devices Finally all the applications which had been developed beforehand are integrate into single application for user friendly purpose 1 4 4 Resource The main system is consisted of 4 main parts which are MDIz MDIzb computer and Android PDA phone The MDIz is using the 3 lead cardiac monitoring system This 3 lead system is based on Einthoven triangle There are 3 skin electrodes used in this system and the color codes are based on IEC The red electrode is for the right arm
23. PSZ 19 16 Pind 1 07 DECLARATION OF THESIS UNDERGRADUATE PROJECT PAPER AND COPYRIGHT Author s fullname TING KUAN NEAN Date of birth 8 JULY 1987 Title DEVELOPMENT OF VITAL SIGN MONITORING APPLICATION USING PDA Academic Session 2009 2010 declare that this thesis is classified as CONFIDENTIAL Contains confidential information under the Official Secret Act 1972 RESTRICTED Contains restricted information as specified by the organisation where research was done OPEN ACCESS agree that my thesis to be published as online open access full text acknowledged that Universiti Teknologi Malaysia reserves the right as follows e The thesis is the property of Universiti Teknologi Malaysia 2 The Library of Universiti Teknologi Malaysia has the right to make copies for the purpose of research only 3 The Library has the right to make copies of the thesis for academic exchange Certified by SIGNATURE SIGNATURE OF SUPERVISOR 870708085011 EN CAMALLIL BINOMAR NEW IC NO PASSPORT NO NAME OF SUPERVISOR Date Date NOTES dl If the thesis is CONFIDENTIAL or RESTRICTED please attach with the letter from the organisation with period and reasons for confidentiality or restriction I hereby certify that I have assessed this thesis and in my opinion it is suitable in terms of scope and quality for the purpose of awarding a Bachelor s degree in Electrical Engineering Signature A IA Su
24. View updateSecondsPassed mySecondsPassed j if NextStatus HEARTRATE heart_rate readint my View updateSecondsPassed2 heart_rate NextStatus ISDATA j if NextStatus NOTDATA NextStatus ISDATA j if readint 250 NextStatus HEARTRATE j if readint 249 readint 251 NextStatus NOTDATA j if mySecondsPassed gt 350 mySecondsPassed 0 j myView invalidate break j super handleMessage msg j j 68 Called when the activity is first created Override public void onCreate Bundle savedInstanceState super onCreate savedInstanceState this my View new GraphView this setContent View this my View mBluetoothAdapter BluetoothAdapter getDefaultAdapter connect public void connect mBluetooth Adapter Bluetooth Adapter getDefaultAdapter BluetoothDevice device mBluetoothAdapter getRemoteDevice address BluetoothSocket tmp null Get a BluetoothSocket for a connection with the given BluetoothDevice try tmp device createRfcommSocketToServiceRecord MY_UUID catch IOException e j BluetoothSocket mmSocket tmp mBluetoothAdapter cancelDiscovery Make a connection to the BluetoothSocket try This is a blocking call and will only return on a successful connection or an exception mmSocket connect catch IOException e try mmSocket close catch IOException e2 j j Start the
25. abled cb setChecked true cb setText Wifi is enabled else cb setChecked false cb setText Wifi is disabled j j public void onCheckedChanged CompoundButton button View boolean isChecked if isChecked 73 74 if mWm setWifiEnabled true cb setText Wifi is enabled else cb setChecked false cb setText Attempt to enable failed else if mWm setWifiEnabled false cb setText Wifi is disabled else cb setChecked true cb setText Attempt to disable failed Button next Button findViewB yld R 1d test next setOnClickListener new View OnClickListener public void onClick View view Intent myIntent new Intent view getContext HelloAndroid class startActivityForResult myIntent 0 j 1 APPENDIX F Source code for HelloAndroid java package com example androidone import android app Activity import android os Bundle import android widget TextView import android widget Toast import android content BroadcastReceiver import android content Context import android content Intent import android content IntentFilter import android net DhcpInfo import android net wifi ScanResult import android net wifi WifiManager import android net wifi WifiConfiguration import android net wifi WifiInfo import java util List import android view View import android view View OnClickListener import android widget Button
26. al version is used to connect these 2 devices via computer After connecting to the computer they are connected to the different COM port instead of the same COM port So a program that is capable of transferring data from one COM port to different COM port is needed to communicate these 2 devices 25 3 1 5 Plotting ECG and display heart rate In order to plot the ECG signal a line graph is used to connect the ECG data points For each transmission of ECG data it will redraw itself and at the same time keep the previous ECG data The heart rate pulse values are coming along with ECG data A draw text function will be used to display the real time heart rate pulse value at the center of the view 3 2 Algorithm structure for connecting MDIz MDIzb computer and PDA 1 Connect ECG simulator to MDIZ 2 Switch on the MDIZ and MDIZB 3 Connect MDIZB and PDA via BlueSoleil 4 Activate the computer Bluetooth application 5 Start the PDA Bluetooth application Figure 3 1 Algorithm structure for connecting MDIz MDIzb computer and PDA Figure 3 1 shows the algorithm structure for connecting MDIz MDIzb computer and PDA Firstly the ECG simulator is connected to the MDIz The ECG simulator acts as replacement for the human body in order to get the accurate result for plotting and display heart rate pulse value Secondly switch on both the MDIz and MDIzb devices Next connect the MDIzb and PDA via BlueSoleil 6 0 They are 26 co
27. assed final int readint123 this readint final int heart_rate123 this heart_rate paint setTextAlign Align LEFT int vers verlabels length 1 for int 1 0 1 lt verlabels length 1 paint setColor Color DKGRAY float y graphheight vers 1 border canvas drawLine horstart y width y paint paint setColor Color WHITE canvas drawText verlabels i 0 y paint j int hors horlabels length 1 for int 1 0 i lt horlabels length i paint setColor Color DKGRAY float x graphwidth hors 1 horstart canvas drawLine x height border x border paint paint setTextAlign Align CENTER if 1 horlabels length 1 paint setTextAlign Align RIGHT 71 72 if G 0 paint setTextAlign Align LEFT paint setColor Color WHITE canvas drawText horlabels 1 x height 4 paint j paint setTextAlign Align CENTER canvas drawText title graphwidth 2 horstart border 4 paint paint setColor Color LTGRAY float datalength 350 float colwidth width 2 border datalength float halfcol colwidth 2 for m lt secondsLeft m rat m readint123 128 diff h m graphheight rat m lasth m h m j String timeDisplayString2 timeDisplayString2 heart_rate123 canvas drawText timeDisplayString2 this getWidth 2 30 timeDisplayString2 lengthQ this getHeight 2 30 this myCountDownTextPaint for int j 0 j l
28. based portable wireless ECG monitor for medical personal area networks IEEE MELECON 2006 May 16 19 Benalmadena Malaga Spain 8 Jimena Rodr guez Alfredo Go i and Arantza Illarramendi Real Time Classification of ECGs on a PDA IEEE TRANSACTIONS ON INFORMATION TECHNOLOGY IN BIOMEDICINE VOL 9 NO 1 MARCH 2005 9 Martin Ekstr m Small wireless ECG with Bluetooth communication to PDA A Master of Science thesis in electronic sciences performed at The Department of Computer Science and Electronics M lardalen University 2006 10 http androidandme com 2010 01 news android to overtake 1phone os 1n us smartphone traffic this year 11 Man Sun Kim HyungJeong Yang A Study of ECG Characteristics by Using Wavelet and Neural Networks Department of Computer Science Chonnam National University 1 4244 1031 2 07 25 00 2007 IEEE 12 E Braunwald and L Goldman Primary Cardiology 2nd Edition Elsevier Science USA 2003 13 J R Hampton The ECG Made Easy Churchill Livingstone Nottingham UK 1997 14 Bronzino D Joseph The Biomedical Engineering Handbook IEEE Press 2002 15 J S Lee Performance evaluation of IEEE 802 15 4 for low rate wireless personal area networks IEEE Trans Consumer Electron vol 52 no 3 pp 742 749 Aug 2006 16 J S Lee and Y C Huang ITRI ZBnode A ZigBee IEEE 802 15 4 platform for wireless sensor networks in Proc IEEE Int Conf Systems
29. by providing an open development platform Developers are free to take advantage of the device hardware access location information run background services set alarms add notifications to the status bar and others Besides developers can gain full access to the same framework APIs used by the core applications This application architecture is designed to simplify the reuse of components For example any application can publish its capabilities and any other application may then make use of those capabilities 13 2 3 Eclipse Galileo Eclipse is a multi language software development environment consist an IDE and an extensible plug in system The primarily written language is Java and can be used to develop Java application By means of the available plug ins it also can be written in different programming language such as C C COBOL Python Perl PHP and others Furthermore Eclipse employs plug ins in order to provide all of its functionality on top of the runtime system as compare to some other applications where functionality 1s typically hard coded s Clipse GALILEO Loading com android ide eclipse adt a E pse c JEC tranem MS rm A ple graphplot graphpio corm exa phplot grapnpio Echip ce Refactor Navigate Search Project Window Help Sue 0 Q BeG or 4 gt A cds Ta Hierarchy J AbstractChartjava J graphplotjava 14 SalesGrowthChart java 14 ChartDerno java B gt package c
30. computational resources than any other device in the PAN 17 The maximum signal rate for the ZigBee is 250kb s and the nominal range for detecting the ZigBee is from 10m till 100m 19 2 7 Wireless Medical Interface There are 2 kinds of wireless medical interface which has been discussed in this project MDIz and MDIzb MDIz is a device which acquires data from medical device and transmits it out through Zigbee network For the MDIzb it coordinates the Zigbee network as well as communicates with Medical Data Assistant through Bluetooth network 19 Medical Sensor BA conditioner and A roar Zigbee Module Figure 2 4 Block diagram of MDIz L PORTO Data Checksum process Figure 2 5 Frame of MDIz Figure 2 4 shows the block diagram of MDIz Analog signal from medical sensor is conditioned digitized and processed by a processor The data from processor is converted to Zigbee and then transmitted out The data is arranged in a frame as shown in Figure 2 5 It consists of device ID status length of process data and checksum The Zigbee module is bidirectional and MDIz can receive the command through Zigbee module 20 A Processor Processor 2 eb E A Module pan KE 256kb Bluetooth SRAM Module Figure 2 6 Block diagram of MDIzb tame frame Byte Figure 2 7 Frame of MDIzb MDIzb coordinates the Zigbee network It decides which medical device will communicate to in that time and give them priority based their s
31. e android R layout simple_spinner_item ID references a layout for the standard spinner appearance defined by the platform Then setDropDownViewResource int is called to define the appearance for each item when the widget is opened simple_spinner_dropdown_item is another standard layout defined by the platform Finally the ArrayAdapter is set to associate all of its items with the Spinner by calling setAdapter T 35 3 6 3 3 Implement video recording application refer to Appendix G and H mSurface View CamcorderPreview find ViewByld R id surface_camera mSurface View setOnTouchListener new OnTouchListener public boolean onTouch View view MotionEvent event if event getAction MotionEvent ACTION_DOWN if recording mSurface View getRecorder stop mSurface View getRecorder release onStop onDestroy else recording true mSurface View getRecorder start return true j return false j 3 The video recording class implement the CamcorderPreview class as the surface to record video The default value for the recording is false When the user touch the screen it will start video recording and touch again to stop video recording For the onDestroy call method is to destroy the video recording activity 3 6 3 4 Implement Wi Fi application refer to Appendix E and F mWm WifiManager this getSystemService Context W FI_SERVICE if mWm isWifiEnabled cb setChecked true
32. e drawLine has four arguments starting from initial x y point to end x y point A line can only be draw 1f at least 2 points exist to form a line The variable m is used for counting how many points being pass by or counting on how many time the onDraw was called However the secondsLeft variable state for each single transmission of ECG data By doing looping on drawLine every single data pass by will enable the current and pass point values being plotted continuously 39 Handler myViewUpdateHandler new Handler Gets called on every message that is received Override public void handleMessage Message msg switch msg what case newgraph MESSAGE_READ byte bytes byte msg obj String readMessage123 new String bytes int readint Integer parselnt readMessage123 trim if readint 0 amp amp readint lt 246 mySecondsPassed my View updateSecondsPassed 1 readint my View updateSecondsPassed mySecondsPassed j if mySecondsPassed gt 350 mysSecondsPassed 0 j my View invalidate break j super handleMessage msg j j Since the GUI need to be redraw for every single transmission of ECG data a thread is needed to handle the data The transmission data is in byte format and by calling the Integer parselnt to change the data format to integer in order to plot the graph The ECG plotting points is within 0 and 246 This value need to be constantly pass to the GraphView class to r
33. ecording Wi Fi and Bluetooth 2 Leam Java Programming language __ 3 Leam to program simple application using Eclipse 4 Develop GUL for video recording Wi Fi and Bluetooth 5 Develop video recording application 6 Develop Wi Fi application 7 Develop Bluetooth application 8 Test on connect and receive ECG data 9 Integrate all applications into single application Figure 1 1 Work Flow 1 4 2 Block diagram Bluetooth Bluetooth MDIZ MDIZB Transmitter Wireless converter Android PDA phone Figure 1 2 Block diagram Figure 1 2 shows the developed system is consisted of 4 main parts The MDIzb which act as a transmitter to send the ECG data to MDIzb MDIZb acts as wireless converter to convert the ZigBee ECG data to Bluetooth ECG data At the same time computer will acts on receive the Bluetooth ECG data and transfer those data to PDA The computer is used as a medium to communicate between MDIzb and PDA due to the pairing problem in MDIzb MDIzb does not require any pairing code for paring purpose However PDA did require pairing code before data transferring is allowed After receiving ECG data from computer the PDA application will plot ECG signal and display heart rate pulse value 1 43 Gantt chart Activities FYP 1 Time week af 2f 3 af 5 6 7 8f ol10 11 12 13 14 15 16 1 Study Bluetooth Technology and application worldwide aaa FT ery ee O OP ene 2 Study evolution of PDA MINO PT ff pf OOO ee ee
34. ed they re removed before the application is published 7 It declares the minimum level of the Android API that the application requires 3 6 3 Source code detail 3 6 3 1 Implement Android button Button next Button find ViewByld R id Next next setOnClickListener new View OnClickListener public void onClick View view Intent myIntent new Intent view getContext Activity class startActivityForResult myIntent 0 34 1 The android widget button is declared in xml layout and it id is Next When the user click on the button it will move to Activity class 3 6 3 2 Implement Android spinner final Spinner spinnerl Spinner find ViewB yId R id spinner ArrayAdapter adapter ArrayAdapter createFromResource this R array connection android R layout simple_spinner_item adapter setDropDownViewResource android R layout simple_spinner_dropd own_item spinner 1 setAdapter adapter create array in res value arrays xml lt resources gt lt string array name connection gt lt item gt Bluetooth lt item gt lt item gt Wi1Fi lt item gt lt item gt VideoRecording lt item gt lt string array gt lt resources gt The first line declare the spinner by it id spinner The createFromResource method then creates a new ArrayAdapter which binds each item in the string array to the initial appearance for the Spinner The R array connection ID references the string array defined above and th
35. edraw the plot 40 3 7 Casing photos HTC Magic laptop Figure 3 6 Casing photos 3 8 System photo 41 Figure 3 7 System photo 42 3 9 User Manual 3 9 1 PDA application Before starting the PDA application the user is asked to active the Bluetooth setting After being activated user can start this application Below shows the GUI obtain from this application sr JS 3 53 PM androidone i UNIVERSITI TEKNOLOGI MALAYSIA START Figure 3 8 Main GUI Figure 3 8 shows the main GUI for this application User click on the START button to proceed to next layout 43 04 11 35 pM androidone Bluetooth Click on setting Camera Figure 3 9 Second layout Figure 3 9 shows the second layout for this application There is a spinner and two buttons By clicking on the spinner you may obtain the result as shows in Figure 3 10 Bluetooth VideoRecording Figure 3 10 Spinner 44 TB 3 54 PM ME is disabled Click Next to Connect Available Wifi Figure 3 11 GUI for WiFi application 1 When the user select WiFi from the spinner list and click on Click on setting button it will go to new GUI as shows in figure 3 11 When the user check the check box it will enable the Wi Fi and the next GUI will be shows in figure 3 12 Rwir is enabled Click Next to Connect Available Wifi Figure 3 12 GUI for WiFi application 2 45 After the
36. eo for different doctor However when the user select on Bluetooth from spinner list 1t will go to next GUI as shows in figure 3 16 ECG Monitoring Graph j i ji il i T A MI Figure 3 16 GUI for ECG plot This GUI straight away will starting to plot the ECG signal and display heart rate pulse value if all the connected device is ready to transfer data The center of the view shows an integer for heart rate pulse value This ECG signal 1s based on 240 BPM 48 3 9 2 Computer Bluetooth application BlueS leil Searching devices Figure 3 17 BlueSoleil 6 0 Interface 1 Figure 3 17 shows the GUI for BlueSoleil 6 0 interface Initially the user need to active their computer Bluetooth module by clicking on the center Ball shape button and searching for the Bluetooth devices After searching for the remote devices it will shows the next GUI as in figure 3 18 Figure 3 18 BlueSoleil 6 0 Interface 2 49 The next step required the user to do pairing before they can actually connecting to each other It will pop up a message asking user to key in a paring code for the Android phone and the computer The paring code enter must be the same for each of these devices before they can started to connect each others The figure also shows the dotted line being connected to HTC Magic and MDIzb This dotted line is to ensure that they are currently connecting on each other Now is it the time to run the program
37. er COM port In order to plot ECG a line graph is used to connect all the ECG data points 3 4 Sub flow charts and explanation 3 4 1 Develop GUI for video recording Wi Fi and Bluetooth application The main layout is designed as putting a UTM logo a start button and some texts such as PDA intensive monitoring and welcome The button is used to load the second layout After the user click on the start button the second layout appeared There will be a spinner and a click on setting button The spinner create a list of connection such as Bluetooth Wi Fi and Video Recording When the user click on the spinner it will display the list to allow the user to select their desired connection After the user has choose their desired connection they need to click on click on setting button to proceed desired application 3 4 2 Develop video recording application When the user select video recording application there will display a new layout with a square surface and 4 radio buttons The square surface is for the video recording while the 4 radio buttons are implemented for future usage such as for sending the particular video to doctor When the user touch on the square surface the 28 video recording activity will be started In order to stop recording the user need to touch again the square surface and at the same time the recorded video will be save in the SD card 3 4 3 Develop Wi Fi application When
38. et Button import android widget Spinner public class Activity2 extends Activity Called when the activity is first created public void onCreate Bundle savedInstanceState super onCreate savedInstanceState setContent View R layout second final Spinner spinner Spinner find ViewB yId R id spinner ArrayAdapter adapter ArrayAdapter createFromResource this R array connection android R layout simple_spinner_item adapter setDropDownViewResource android R layout simple_spinner_dropdown_item spinner 1 setAdapter adapter Button setting Button find ViewB yId R id setting setting setOnClickListener new View OnClickListener public void onClick View view String spinner2 String spinner1 getSelectedItem String string Bluetooth String string2 WiFi String string3 VideoRecording if spinner2 equals string 1 Intent myIntentl new Intent view getContext newgraph class startActivityForResult my Intentl 0 else if spinner2 equals string2 Intent myIntent2 new Intent view getContext WiFi class startActivityForResult myIntent2 0 else if spinner2 equals string3 Intent myIntent3 new Intent view getContext VideoRecording class startActivityForResult myIntent3 0 64 65 APPENDIX C Source code for newgraph java package com example androidone import java io OException import java io InputStream import java io OutputStream impor
39. gnals 5 This system was designed to monitor biosignals and activity signal while the subject is moving The system uses two acceleration sensors to measure activity signal and has a 1 channel bioamplifier to measure the patient s heart condition In comparison my developed system measures ECG signal using 3 lead cardiac monitoring system in order to get more accurate information on the patient s heart condition 1 2 Alternative solution Among the novel applications that can be supported by the new capabilities of mobile handsets those related with health care and telemedicine are gathering a growing expectation because of their social relevance and the huge potential market represented by the ageing population of developed countries 6 Among the PDAs used in the research as a monitoring device J M Cano Carcia proposed using the Linux operating system as application framework for the PDA and Desktop Server computer 7 She choose HP IPAQ H3970 PDA phone as her portable monitoring device However this system required the PCMCIA data acquisition card be connected to a PDA to build her portable data acquisition system and the PCMCIA acquisition cards are expensive for mass production Again the biosignal sensor device in this system is required to connect to PDA Besides Jimena Rodriguez Alfredo Goni and Arantza Illarramendi proposed the IPAQ Pocket PC using MOLEC architecture 8 This is due to the MOLEC architec
40. in order to obtain an acceptable ECG signal Due to the limitation of the PDA phone screen size 128 value is being set as a starting point for the y axis 4 3 Performance testing For the resolution the direct AD converter values 0 to 255 for the y axis while the number of sample points send per second for the x axis Hz For the 54 medium amplification stage A1 the zero line of the ECG 1s at the middle of the AD range 128 1mV is equal to 100 steps For example 228 received as sample value would equal to 1mV in the positive direction 28 would be equal to 1mV in the negative direction For the high amplification stage A2 this resolution is doubled For example 228 related to 0 5mV while for the low amplification stage AQ the resolution is half For example 228 relates to 2mV Besides tests have been carry out according to different BPM set by ECG simulator The result are obtained as show in the following figures ma ECG Monitoring Graph 182 i i yN l iii y iy ANA Figure 4 2 ECG plot for 180 BPM N ii Wi Figure 4 3 ECG plot for 120 BPM ECG Monitoring Graph Figure 4 4 ECG plot for 60 BPM 55 56 ECG Monitoring Graph Figure 4 5 ECG plot for 30 BPM When the MDIz and MDIzb are activated at the same with the computer Bluetooth application the PDA application can immediately receive the data and plot accordingly 4 4 Reliability testing For th
41. is range of applications is known as WPAN The two connectivity topologies defined in Bluetooth are piconet and scatternet A piconet is a WPAN formed by a Bluetooth device serving as a master in the piconet and one or more Bluetooth devices serving as slaves A frequency hopping channel based on the address of the master defines each piconet All devices participating in communications in a given piconet are synchronized using the clock of the master Slaves communicate only with their master in a point to point fashion under the control of the master The master s transmissions may be either point to point or point to multipoint Besides in an active mode a slave device can be in the parked or standby modes so as to reduce power consumptions A scatternet is a collection of operational Bluetooth piconets overlapping in time and space Two piconets can be connected to form a scatternet A Bluetooth device may participate in several piconets at the same time thus allowing for the possibility that information could flow beyond the coverage area of the single piconet A device in a scatternet could be a slave in several piconets but master in only one of them 17 The maximum signal rate for the Bluetooth is 1Mb s and the nominal range for detecting the Bluetooth is 10m 18 2 6 ZigBee wireless communication technology ZigBee also known as IEEE 802 15 4 defines specifications for LR WPAN for supporting simple devices that consume minimal power and
42. is testing the PDA application is left to plot continuously without a specific time period This is due to the application most of the just can manage to plot within 1 till 5 minutes and then stop accordingly This problem occurred most of the time because of the BlueSoleil 6 0 is trial version When the ECG signal plotting at the same time may noticed that either MDIzb or Android PDA phone already disconnected and the computer Bluetooth application stop transferring data between 2 COM ports and lead to error For example when carry out testing for 60 BPM the PDA application stop plotting when either MDIzb or Android PDA phone disconnected unexpectedly This can be illustrated by the figure 4 6 E247 Ch efi 11 20 AM ECG Monitoring Graph Figure 4 6 ECG plot for 60 BPM So for the recommendation a fully compatible Bluetooth application is needed in order to test the performance more accurately 57 58 CHAPTER 5 CONCLUSION AND RECOMMENDATION Summing up the video recording Wi Fi and Bluetooth applications are successfully developed The recording video can be save in the SD card W1 Fi application enable the user to enable Wi Fi and connect to remember hotspot automatically While the Bluetooth application is able to receive ECG data from MDIZb and plot the ECG signal and display the heart rate pulse value Android PDA phone has successfully implement this application as compare to other solution using HP IPAQ PDA phone devel
43. l the devices are connected wirelessly to each other in my project while the J M Cano Garcia team project required PCMICA data acquisition connected physically to the device as well as biosignal sensors Although in my project all the connected devices are connected wirelessly but this system limit to the home and hospital usage and limit the mobility as compare to J M Cano Garcia team project Besides for the external support computer is required to be one of the element in my project and lead to the immobility However for the J M Cano Garcia team project the PDA need to have PCMCIA expansion sleeve in order to connect PCMCIA data acquisition card This card is expensive for the purpose of mass production Next HTC Magic support android operating system while the HP IPAQ H3970 PDA support Linux operating system and both of this operating system is 22 open source project Furthermore ADT is a plug in for the Eclipse IDE that is designed to give a powerful integrated environment in which to build Android applications At the same time ADT also extends the capabilities of Eclipse to let the developers quickly set up new Android projects create an application UI add components based on the Android Framework API debug applications using the Android SDK tools and even signed APKs in order to distribute application As compare with J M Cano Garcia team project COMEDI is a tools that comprises a collection of drivers for a variet
44. ment a spinner which have a list of 3 connections When the user select on the Bluetooth it will load the newgraph class for the Bluetooth application The newgraph class has a handler to handle the ECG data and pass the data to GraphView class to plot the graph The GraphView class serves as a layout for the neweraph class However if the user select on WiFi from the list 1t will load the WiFi class This class serves enabling or disabling the WiFi After clicking on the Next button it will continue to load HelloAndroid class This class acts on connecting the remember hotspot automatically by clicking on the Refresh button 32 Besides if the user select VideoRecording it will load VideoRecording class This class acts as starting or stopping video recording and implement the CamcorderPreview class as the layout 3 6 Detail source code and explanation 3 6 1 Declaring Layout The layout is the architecture for the user interface in an Activity It defines the layout structure and holds all the elements that appear to the user There are two ways of declaring the layout First declare user interface elements in XML From this Android provides a straightforward XML vocabulary that corresponds to the View classes and subclasses such as for those widgets and layouts The second method is instantiate layout elements at runtime The application using this type of layout can create View and ViewGroup objects and manip
45. n be used as a tool for doctor to analyze the patient heart conditions A fully compatible Bluetooth software is required in order to provide maximize operating time for the PDA application 60 REFERENCES 1 S J Jose J C F David S P Luis A Mateo A microcontroller based portable electrocardiograph recorder IEEE Transactions on Biomedical Engineering Sep 2004 pp 1686 1690 2 P Farreras and C Rozman Medicina Interna 13rd ed New York Elsevier Oct 2001 ch 3 pp 395 523 CD ROM edition 3 The World s First Implantable Diagnostic Device Medtronic Reveal Insertable Loop Recorder Online Available www medtronic com 4 R Fensli E Gunnarson O Hejlesen A wireless ECG system for continuous event recording and communication to a clinical alarm station Proceedings of the 26th Annual International Conference of the IEEE EMBS San Francisco Sep 1 5 2004 pp 2208 2211 5 E Jovanov A Milenkovic C Otto P De Groen B Johnson S Warren G Taibi A WBAN System for Ambulatory Monitoring of Physical Activity and Health Status Applications and Challenges Proceedings of the 27 Annual International Conference of the IEEE EMBS Shanghai Sep 1 4 2005 pp 3810 3813 6 P E Ross Managing care through the air IEEE Spectrum vol 41 no 12 pp 14 19 December 2004 61 7 J M Cano Garc a E Gonz lez Parada V Alarc n Collantes and E Casilar1 P rez A PDA
46. nClick View v wifiManager startScan Toast makeText this getApplicationContext Scan Started MsgCount globalCounter Toast LENGTH_LONG show public static String intToIp nt 1 return 1 gt gt 24 amp OxFF i gt gt 16 amp OxFF i gt gt 8 amp OxFF i amp OXxFF j private BroadcastReceiver wifiEventReceiver new BroadcastReceiver private boolean enabled false private String reallP Override public void onReceive Context context Intent intent if intent getAction equals WifiManager SCAN_RESULTS_AVAILABLE_ACTION if enabled return List lt ScanResult gt hotspots wifiManager getScanResults StringBuffer ssids new StringBuffer for ScanResult hotSpot hotspots String hotSpotSsid hotSpot SSID 77 String hotSpotBssid hotSpot BSSID StringBuffer sBuf new StringBuffer sBuf append hotSpotSsid hotSpotSsid sBuf toString ssids append hotSpotSsid if hotSpotSsid indexOf CHOSEN_HOTSPOT gt 0 List lt WifiConfiguration gt networks wifiManager getConfiguredNetworks Toast makeText context NUmber of confiuredNetworks networks size Toast LENGTH_LONG show WifiConfiguration wifiConfiguration new WifiConfiguration wifiConfiguration SSID hotSpotSsid wifiConfiguration BSSID hotSpotBssid wifiConfiguration hiddenSSID false wifiConfiguration priority 100000 add this to the configured
47. nation 3 6 1 Declaring layout 3 6 2 The AndroidManifest xml file 3 6 3 Source code detail 3 6 3 1 Implement Android button 14 15 16 17 18 19 21 23 23 23 24 24 24 24 25 25 26 21 21 27 28 28 29 31 32 32 32 33 33 30 32 30 33 3 6 3 4 3 6 3 5 3 6 3 6 3 7 Casing photos 3 8 System photo 3 9 User Manual Implement Android spinner Implement video recording application Implement Wi Fi application Implement Bluetooth application Plot ECG and display heart rate pulse value 3 9 1 PDA application 3 9 2 Computer Bluetooth application TEST RESULT AND ANALYSIS 4 1 Objective and scope of testing 4 2 Functional testing 4 3 Performance testing 44 Reliability testing CONCLUSION AND RECOMMENDATION REFERENCES APPENDIX A APPENDIX B APPENDIX C APPENDIX D APPENDIX E APPENDIX F APPENDIX G APPENDIX H APPENDIX I APPENDIX J APPENDIX K APPENDIX L APPENDIX M 34 35 35 37 38 40 41 42 42 48 52 32 32 53 56 58 60 63 64 66 70 73 75 79 81 83 84 85 86 87 APPENDIX N APPENDIX O APPENDIX P Xi 88 89 91 FIGURE No 1 1 1 2 1 3 1 1 3 2 1 4 1 5 2 1 2 2 Dl Pals 2 4 2 9 2 6 2 1 3 1 3 2 3 3 4 3 5 3 6 3 7 3 8 3 9 LIST OF FIGURES TITLE Work Flow flow chart Block diagram Gantt chart for Semester Gantt chart for Semester 2 Characteristics of MDIz Characteristics of MDIzb Eclipse Galileo Interface Handset Emulator
48. networks int inetId wifiManager addNetwork wifiConfiguration if inetId lt 0 Toast makeText context Unable to add SSID hotSpotSsid Toast LENGTH_LONG showQ return j else Toast makeText context Successfully added SSID hotSpotSsid Inet Id inetId Toast LENGTH_LONG show j boolean successConnected wifiManager enableNetwork inetld true if successConnected Toast makeText context Connected to SSID hotSpotSsid Inet Id inetId Toast LENGTH_LONG show enabled true break j else return Toast makeText context ssidst Msg Count globalCounter Toast LENGTH_LONG show j 78 else if intent getAction equals WifiManager NETWORK_STATE_CHANGED _ACTION Wifilnfo wifilnfo wifiManager getConnectionInfo WifiManager wifiManager WifiManager getSystemService WIFI_SER VICE DhcpInfo dhcpInfo wifiManager getDhcpInfo String dhcpInfos dhcpInfo toString split int i 0 while 1 lt dhcpInfos length if dhcpInfos 1 equals ipaddr realIP dhcpInfos i 1 break j i showtext setText IP address for connection realIP Intent wifiEstablishedIntent new Intent WiFi wifiEstablishedIntent putExtra Connection Connection established wifiInfo getSSIDQ sendBroadcast wifiEstablishedIntent Toast makeText context Connected globalCounter Toast LENGTH_LONG show showtextl setText SSID for connection wifiI
49. nfo getSSIDQ j else if intent getAction equals WifiManager S UPPLICANT_STATE_CHANGED_ACTION intent getBooleanExtra WifiManager EXTRA_SUPPLICANT_CONNECTED false j else if intent getAction equals WifiManager S UPPLICANT_CONNECTION_CHANGE_ACTI ON intent getBooleanExtra WifiManager EXTRA_SUPPLICANT_CONNECTED false j APPENDIX G Source code VideoRecording java package com example androidone import android app Activity import android content pm ActivityInfo import android os Bundle import android view MotionEvent import android view View import android view Window import android view View OnTouchListener public class VideoRecording extends Activity private CamcorderPreview mSurfaceView private boolean recording false Override Called when the activity is first created public void onCreate Bundle savedInstanceState super onCreate savedInstanceState requestWindowFeature Window FEATURE_NO_TITLE setRequestedOrientation ActivityInfo SCREEN_ORIENTATION_LANDSCAPE setContent View R layout third j Override public void onStart super onStart setup123 j Override public synchronized void onResume super onResume private void setup1230 mSurface View CamcorderPreview find ViewB yId R id surface_camera mSurfaceView setOnTouchListener new OnTouchListener public boolean onTouch View view MotionEvent event if event getAction
50. nnecting to each other when you notice each of the device connected by a dotted line shows in BlueSoleil interface Again the computer Bluetooth application is activated by clicking the start button and the ECG data values will be shown in a text box This is to ensure that the MDIzb is sending the data to PDA Lastly start the PDA Bluetooth application and the ECG data will be plotted and heart rate pulse value will be displayed 3 3 Main Flow chart Develop GUI for video recording Wi Fi and Bluetooth Develop video recording application Develop Wi Fi application Develop Bluetooth application Plot ECG signal and display heart rate Figure 3 2 Main flow chart Figure 3 2 shows the main flow chart First of all the GUI for the video recording Wi Fi and Bluetooth applications are developed to give an overview of the application structure Next the video recording application is developed This application works on touch the screen to start recording and touch again to stop recording The recorded video is saved in the SD card While the Wi Fi application allows the user to enable the Wi Fi within application and connect to the hotspot automatically For the Bluetooth application there are 2 parts which are on the PDA and computer The PDA Bluetooth application work on communicate with the 27 computer to receive ECG data from MDIzb while the computer Bluetooth application work as transferring data from one COM port to the oth
51. oid Personal Digital Assistant Zigbee ECG and Bluetooth vil ABSTRAK Penyakit cardiovascular masih menjadi pembunuh utama di Malaysia dengan penyakit darah tinggi mencatat tertinggi mengikut The New Straits Times surat khabar Jumaat 18 Julai 2008 Mengikut kajian ECG telah menjadi satu penunjuk untuk mengubati penyakit ini Dengan bertambahnya pesakit cardiovascular sistem pengamatan ECG telah dieksploitasikan dan PDA telah menjadi alat pengamatan untuk menjimatkan kos Aplikasi PDA ini dapat mengplotkan ECG dan mempamerkan denyutan jantung pesakit Sistem pengamatan ini terdiri daripada satu pemancar radio penukar computer dan PDA Pemancar menyimpan ECG data pesakit and hantar data tersebut kepada radio penukar dengan menggunakan ZigBee radio komunikasi teknologi Pada masa yang sama computer akan menerima data tersebut dan menghantar data lagi ke PDA dengan menggunakan Bluetooth radio komunikasi teknologi Aplikasi PDA ini telah berjaya mengplotkan ECG bagi sesetengah BPM dariapada ECG simulator Seterusnya aplikasi ini dapat mengplotkan ECG sehingga antara satu daripada peralatan telah terputus hubungan Sebagai kesimpulan aplikasi PDA yang berkeupayaan menyimpan ECG dan denyutan jantung pesakit perlu untuk kajian seterusnya Kata Kunci Android PDA Zigbee ECG dan Bluetooth CHAPTER TABLE OF CONTENTS TITLE DECLARATION DEDICATION ACKNOWLEDGEMENT ABSTRACT ABSTRAK TABLE OF CONTE
52. oid name android intent category LAUNCHER gt lt intent filter gt lt activity gt lt application gt lt uses sdk android minSdk Version 7 gt lt uses permission android name android permission CAMERA gt 90 lt uses feature android name android hardware camera gt lt uses feature android name android hardware camera autofocus gt lt uses permission android name android permission RECORD_AUDIO gt lt uses permission gt lt uses permission android name android permission ACCESS_WIFI_STATE gt lt uses permission gt lt uses permission android name android permission CHANGE_WIFI_STATE gt lt uses permission gt lt uses permission android name android permission ACCESS_NETWORK_STATE gt lt uses permission gt lt uses permission android name android permission CHANGE_NETWORK_STATE gt lt uses permission gt lt uses permission android name android permission INTERNET gt lt uses permission android name android permission BLUETOOTH gt lt uses permission gt lt uses permission android name android permission BLUETOOTH_ADMIN gt lt uses permission gt lt manifest gt APPENDIX P Source code for computer Bluetooth application using System using System Collections Generic using System ComponentModel using System Data using System Drawing using System Linq using System Text using System Windows Forms using System IO Ports namespace haikal
53. oject vi ABSTRACT Cardiovascular disease remains the number one killer in Malaysia with hypertension topping the list according to Friday Jul 18 2008 The New Straits Times Electrocardiography ECG has been studies as the most frequently used indicator for diagnosing cardiovascular diseases Due to the increasing number of people with cardiovascular diseases a real time ECG monitoring system has been developed In order to achieve this goal in an economic way a real time monitoring system using PDA has been developed This PDA application 1s capable of plotting real time patients ECG signal and at the same time display the heart rate pulse value The developed system is consisted of a transmitter wireless converter computer and PDA phone The transmitter stores information of the patient s heart condition and send to the wireless converter using ZigBee wireless communication technology At the same time the computer receives that signal and transmits to PDA using Bluetooth wireless communication technology For the test result PDA application successfully plot the acceptable ECG signal based on certain BPM of ECG simulator and display heart rate pulse value Besides this application has been tested to plot ECG signal continuously until one of the connected devices has been disconnected Summing up a PDA application that is capable of storing the ECG signal and heart rate pulse values is needed for future development Keywords Andr
54. om example graphplot 15 4UTM16 gt AChartEngineDemo ARKo tle com example graphplot mMenuSummary St o onCreate Bundie void nmetliciValias teMa T Figure 2 1 Eclipse Galileo Interface 14 a AM 5 52 Am Android SSA ox Thursday April 1 Charging 50 ikl el ad pra Ea pra a pa pp Q we r r ly ju 1 lo e ALT i l l Figure 2 2 Handset Emulator Interface 24 ECG ECG is a very important means for non invasive diagnosis It is one of bio potential signals with amplitude of several mV and frequency less than 250Hz In the early 1960s in the U S A the research on ECG system design and signal processing had started Starting from that time there have been researches on designing hardware such as multi channel ECG for automatic diagnosis Holter ECG that monitors patients with cardiac disorder for 24 hours a day stress ECG that diagnose cardiac disorders under exercise stress and developing accurate algorithms 11 15 2 4 1 Electricity of the heart The electrodes attached to the surface of the body can detect the contraction of any muscle Basically the heart has four chambers But from the electrical point of view it can be thought of having only two due to the two atria contract together and then the two ventricles contract together Figure 2 3 1 shows cardiac conduction system Sinoatrial Node SAN N HIS Bundle Right Atrium ue x A Left Bundle Branch LBB
55. ontent android layout_y 360dip android layout_x 35dip android text Camera android id id cameral android layout_width 260px gt lt Button gt lt AbsoluteLayout gt 85 APPENDIX K Source code for third xml lt xml version 0 encoding utf 8 gt lt AbsoluteLayout xmlns android hitp schemas android com apk res android android layout_width fill_parent android layout_height fill_parent android orientation vertical gt lt com example androidone CamcorderPreview android id id surface_camera android layout_y 0dip android layout_x 15dip android layout_width 300dip android layout_height 300dip gt lt RadioGroup android layout_width fill_parent android orientation vertical android layout_height wrap_content android layout_x 340dip android layout_y 50dip gt lt RadioButton android layout_width wrap_content android id id RadioButtonO1 android layout_height wrap_content andro1d text Doctorl android layout_y 20dip android layout_x 340dip gt lt RadioButton gt lt RadioButton android layout_width wrap_content android layout_height wrap_content android id id RadioButton02 andro1d text Doctor2 android layout_x 340dip android layout_y 130dip gt lt RadioButton gt lt RadioButton android layout_width wrap_content android layout_height wrap_content android id id RadioButton03 andro1d text Doctor3 android layout_x 340dip android layout_y 190dip
56. oped by J M Cano Garcia team project and become one of the novelty of this project From this single application it manages to perform 3 tasks as compare to other projects normally just performing real time monitoring or real time classification of ECG signal Furthermore Bluetooth application performs well without much delay to plot ECG signal Android PDA phones have becoming more popularity as compare to the Apple Phone which is one the favorite mobile phone in the market So by developing application in this PDA phones it adds more market value as compare to other PDA phones Besides Android PDA phones also have common features which can be further utilized to add more functionality to the application However here are some recommendations which will made the application more user friendly and provide more functionality For the Wi Fi application it will 59 be more user friendly if the application can search for available hotspot and display it in spinner or list view Again by using the Wi Fi wireless communication technology the Android PDA phone can act like a server to transfer ECG data from one PDA to other PDAs and computers This is called as Wi Fi ad hoc network From this it can add more functionality to the Wi Fi application instead just connected to the W1 Fi hotspot Besides for the Bluetooth application it 1s recommended that the ECG plot can be save continuously instead just plotting it The ECG plot later ca
57. order setPreviewDisplay holder getSurface if recorder null try recorder prepare catch MlegalStateException e Log e HlegalStateException e toString catch IOException e Log e IOException e toString Override public void surfaceDestroyed SurfaceHolder holder j public MediaRecorder getRecorder return recorder j j 82 83 APPENDIX I Source code for main xml lt xml version 0 encoding utf 8 gt lt LinearLayout xmlns android http schemas android com apk res android android orientation vertical android background FFFFFF android layout_width fill_parent android layout_height fill_parent gt lt TextView android layout_width wrap_content android layout_height wrap_content android id id title android gravity center android layout_gravity center android text PDA Intensive Monitoring android layout_marginTop 0px android textSize 25px android layout_marginBottom 8px gt lt TextView gt lt ImageView android layout_width wrap_content android layout_height wrap_content android src drawable utmlogo android layout_gravity center android id id utmlogo android layout_marginBottom 18px gt lt Image View gt lt TextView android layout_width wrap_content android layout_height wrap_content android id id Welcome android text Welcome android layout_gravity center android layout_marginBottom 00px android
58. ording lt item gt lt string array gt lt resources gt 2 strings xml lt xml version 0 encoding utf 8 gt lt resources gt lt string name app_name gt 4UTM lt string gt lt string name connection_prompt gt Choose a connection lt string gt lt resources gt 88 89 APPENDIX O Source code for AndroidManifest xml lt xml version 0 encoding utf 8 gt lt manifest xmins android http schemas android com apk res android package com example androidone android versionCode J android versionName 1 0 gt lt application android icon drawable icon android label string app_name android debuggable true gt lt activity android name androidone android label string app_name gt lt intent filter gt lt action android name android intent action MAIN gt lt category android name android intent category LAUNCHER gt lt intent filter gt lt activity gt lt activity android name Activity2 android screenOrientation portrait gt lt intent filter gt lt category android name android intent category LAUNCHER gt lt intent filter gt lt activity gt lt activity android name newgraph android screenOrientation landscape gt lt activity gt lt activity android name WiFi gt lt activity gt lt activity android name HelloAndroid gt lt activity gt lt activity android name VideoRecording gt lt intent filter gt lt category andr
59. pervisor En Camallil Bin Omar Date O ON Signature E es Co supervisor Associate Professor IR DR Ing Eko Supriyanto Date rra O E DEVELOPMENT OF VITAL SIGN MONITORING APPLICATION USING PDA TING KUAN NEAN A thesis is submitted in fulfillment of the requirements for the award of the degree of Bachelor of Engineering Electrical Electronics Faculty of Electrical Engineering University Teknologi Malaysia APRIL 2010 I declared that this thesis entitled DEVELOPMENT OF VITAL SIGN MONITORING APPLICATION USING PDA is the result of my own research except as cited in references The thesis has not been accepted for any degree and is not concurrently submitted in candidature of any degree Signature E EEA AA EA OEE O Name of Candidate TING KUAN NEAN Date MELEN LOTEA TELE TEE EEN Specially dedicated to my beloved family and those people who have guided and inspired me throughout my journey of education ACKNOWLEDGEMENT I am heartily thankful to my supervisor En Camallil bin Omar whose encouragement guidance and the support that enabled me to develop an understanding of this subject Besides I wish to thank my co supervisors Associate Professor IR DR Ing Eko Supriyanto Mr Haikal and Mr Indra for their patient advice and encouragement in completing this project Lastly I offer my regards and blessings to all of those who supported me in any respect during the development of this pr
60. rity and compete against the Apple iPhone in the US market and the market analyst have predicted Android would overtake the iPhone in sales by 2012 10 Currently there is no research carry out on developing an application in Android PDA phone in order to plot ECG signal and display heart rate pulse value and becoming one of the innovation of this project 1 3 Objective and scope The objective of this project is to develop an application in Android PDA phone in order to plot real time ECG signal and display heart rate pulse value using Bluetooth wireless communication technology From this application a real time ECG signal and heart rate pulse value will be displayed While the scopes of this project are using the 3 lead cardiac monitoring system Android PDA phone as a monitoring device and Bluetooth serves as data transferring protocol between computer and PDA For the expected result a line graph is implemented to connect all the ECG data points in order to plot the ECG signal Besides an integer will be located at center of the PDA screen to display the heart rate pulse value 14 Methodology 1 4 1 Work flow The work flow of the project had been divided into several stages The implementation and work flow of the project are summarized into the flow chart as shown in Figure 1 1 1 Study evolution of PDA 2 Learn Java Programming language 3 Learn to program simple application using Eclipse 4 Develop GUI for video r
61. s a new data values according to the following definition in figure 3 3 Besides example of data stream received shows in figure 3 4 30 Marker byte Meaning of following byte s Commands accepted by the module wave sample points follow M switch to simulation mode N switch back to normal mode S Y send ECG trace with 300 Hz ela le send ECG trace with 100 Hz a e send ECG trace with 50 Hz Pulse value follows A 0 amplification stage 0 A 1 amplification stage 1 Info byte follows A a amplification stage 2 es turn on 50 Hz notch filter The only info byte ng defined is 0x11 LEAD OFF icv cal ache peril Others may be added in the p future Figure 3 3 Definition of data stream sent by the module 0x20 0x23 0x25 OxFA 0x80 OxF8 0x25 0x25 0x26 Wave Marker ECG sample points Pulse 128 Wave Marker ECG Sample points cocososococooooooooooot Time Figure 3 4 Example of a received data stream at the host side 3 5 31 Source code structure androidone class Activity2 class newgraph class WiFi class YideoRecoraln class GraphView class HelloAndroid class CamcorderPreview class Figure 3 5 Source code structure Figure 3 3 shows the source code structure for the PDA application The androidone class is for the main layout class After the user click on the start button the application will load to the Activity2 class which is the second layout This layout imple
62. s on the patient s chest and these electrodes are attached to the holter A tape will be implemented to record a continuous ECG for 24 or 48 hours after the patient is sent home and goes back to normal life After that time the holter 1s removed and the tape 1s analyzed A physician will see each of the patient s hearts beats and if abnormal beats or rhythms occurred during that period they would be identified by the physician Medtronic Reveal Insertable Loop Recorder is also a sophisticated device which allows up for 14 months recording of ECG episodes 3 With that device in case the user experiences a fainting episode for example after waking the user can activate a button in a hand held device and a physician can analyze the stored information a posteriori and determine whether the fainting episode was caused by an abnormal heart rhythm Besides there is also other system developed that gives warning in case the heart has a problem such as arrhythmic pulse 4 This system is capable of monitoring patient s heart condition continuously and in case happening an event it sends a warning to the doctor in a remote place When that event happen this equipment can send a message immediately to the doctor in a remote place by using wireless personal area communication technology and GPRS mobile phone communication technology While the Jovanov proposed a health monitoring system using WBAN for monitoring biosignals and activity si
63. scope of testing The objective of the testing is to test whether the PDA application capable of performing real time monitoring While the scope of testing is to test how long PDA application can perform real time monitoring and plotting based on different BMP set by ECG simulator 4 2 Functional testing In order to plot real time ECG signal and display heart rate pulse value firstly connect ECG simulator to MDIz and set it to 240 BPM Secondly switch on the power of both these devices After that start the BlueSoleil 6 0 application and do paring for the Android PDA phone with computer Before that Android PDA phone must active it Bluetooth module to let the BlueSoleil search for it device MDIzb can start to connect to computer without pairing Now BlueSoleil interface will shows 53 both of these devices connected to the center of the view via dotted line Next start on the computer Bluetooth applcition and clicking on the Start button to do data transferring between one COM port to other COM port Finally launch the PDA application and select the Bluetooth from the spinner list and figure 4 1 shows the test result for 240 BPM E Cy ail 10 48 AM ECG Monitoring Graph i m i MN abt i il Figure 4 1 ECG plot for 240 BPM The orange color integer in the figure shows the heart rate pulse value From this figure it may note that some spikes occurred below the 128 value This graph value is being set
64. t secondsLeft j canvas drawLine G colwidth horstart 1 halfcol border lasth j graphheight 1 colwidth horstart 1 halfcol border h j 1 graphheight paint lasth j h j j public void updateSecondsPassed int someSeconds this mySecondsPassed someSeconds public void updateSecondsPassed 1 int someSeconds1 this readint someSeconds1 public void updateSecondsPassed2 int someSeconds2 this heart_rate someSeconds2 APPENDIX E Source code for WiFi java package com example androidone import android app Activity import android content Context import android content Intent import android net wifi WifiManager import android os Bundle import android view View import android widget Button import android widget CheckBox import android widget CompoundButton import android widget LinearLayout public class WiFi extends Activity implements CompoundButton OnCheckedChangeListener private CheckBox cb private WifiManager mWm Called when the activity is first created Override public void onCreate Bundle savedInstanceState super onCreate savedInstanceState setContent View R layout fourth mWm WifiManager this getS ystemService Context WIFI_SER VICE LinearLayout mainView LinearLayout find ViewByld R id top cb CheckBox find ViewById R id check cb setOnCheckedChangeListener this if mWm isWifiEn
65. t android view View public class GraphView extends View public static boolean LINE true private Paint paint private String horlabels private String verlabels private String title private int m 0 protected int mySecondsPassed 0 protected int readint protected int heart_rate protected final Paint myCountDownTextPaint new Paint protected final Paint myArcSecondPaint new Paint private float rat new float 400 private float h new float 400 private float lasth new float 400 public GraphView Context context super context this myCountDownTextPaint setARGB 255 255 60 10 this myCountDownTextPaint setTextSize 110 this myCountDownTextPaint setFakeBoldText true this myArcSecondPaint setColor 256 this title ECG Monitoring Graph String horlabels new String if horlabels null this horlabels new String 0 else this horlabels horlabels 70 String verlabels new String 248 128 if verlabels null this verlabels new String 0 else this verlabels verlabels paint new Paint Override public void onDraw Canvas canvas float border 30 float horstart 30 float height getHeight float width getWidth 1 float max 120 float min 0 float diff max min float graphheight height 3 border float graphwidth width 2 border final int secondsLeft this mySecondsP
66. t java util UUID import android app Activity import android bluetooth BluetoothAdapter import android bluetooth BluetoothDevice import android bluetooth BluetoothSocket import android content Intent import android os Bundle import android os Handler import android os Message import android widget TextView public class newgraph extends Activity private static final UUID MY_UUID UUID fromString 00001101 0000 1000 8000 00805F9B34FB private Bluetooth Adapter mBluetoothAdapter null Name for the SDP record when creating server socket private String address 00 15 83 C5 29 92 public static final int MESSAGE_READ 2 protected int mySecondsPassed 0 protected int readint protected int heart_rate protected byte NextStatus private static final byte HEARTRATE 2 private static final byte NOTDATA 1 private static final byte ISDATA 0 GraphView myView null The Handler that receives the messages sent out by myRefreshThread every second Handler my ViewUpdateHandler new Handler Gets called on every message that is received Override public void handleMessage Message msg 66 67 switch msg what case newgraph MESSAGE_READ byte bytes byte msg obj String readMessage123 new String bytes int readint Integer parseInt readMessage123 trim if readint 0 amp amp readint lt 246 mySecondsPassed my View updateSecondsPassed l readint my
67. tatus Figure 2 6 shows block diagram of MDIzb It consists of Zigbee module two processors D latch SRAM and Bluetooth module Data from MDIZz is received by Zigbee module and processed by processor 1 Delay may ignore the data To overcome this matter a 256kb SRAM is added as a data buffer The data is then sent to processor 2 to add a frame as shown in Figure 2 7 before transmitted out by Bluetooth module Bluetooth data is acquired by mobile data assistant The Bluetooth module is bidirectional and MDIzb can receive the command through Bluetooth module 21 2 8 Solution comparison HTC Magic HP IPAQ H3970 PDA 1 Portability PDA connected wireless via PDA connected physically to MDIzb MDIz and PCMCIA data acquisition computer card and biosignal sensors 2 External Support Computer is required as a PCMCIA data acquisition medium to communicate card and PDA require MDIzb and PDA PCMCIA expansion sleeve 3 Mobile operating Android operating system Linux operating system system Open source project Open source project 4 Tools ADT Plug in for Eclipse COMEDI support data acquisition Table 1 Comparison between HTC Magic and HP IPAQ H3970 PDA Table 1 shows the solution comparison between HTC Magic and HP IPAQ H3970 PDA For the HP IPAQ PDA this project is based on J M Cano Garcia team project entitled A PDA based portable wireless ECG monitor for medical personal area networks 7 In term of portability al
68. test public partial class Form1 Form private bool bEnable private byte buffer public Form1 InitializeComponent SerialDataReceivedEventHandler Port_DataReceived spANDROID new SerialPort COM8 spANDROID RtsEnable true spANDROID BaudRate 115200 spANDROID StopBits StopBits One spANDROID Parity Parity None spANDROID DataBits 8 spANDROID Handshake Handshake None bEnable false buffer new byte 10 j private void buttonl_Click object sender EventArgs e bEnable Open timer StartQ public bool Open 91 bool bOpend false try 1f IspMDB IsOpen spMDB Open if sp ANDROID IsOpen spANDROID Open bOpend true j catch Exception e textBox1 Text e Message bOpend false j return bOpend j delegate is used to write to a UI control from a non UI thread private delegate void SetTextDeleg string text private void si_DataReceived string data textBox1 Text textBox1 Text data j private void button2_Click object sender EventArgs e if SpMDB IsOpen spMDB Close if SpANDROID IsOpen spANDROID Close timer1 StopQ j private void timerl_Tick object sender EventArgs e if bEnable return int incoming spMDB ReadByte textBox1 Text textBox1 Text incoming spANDROID Write Convert ToString incoming Is 92 93
69. thread to manage the connection and perform transmissions ConnectedThread mConnectedThread new ConnectedThread mmSocket mConnectedThread start j per This thread runs during a connection with a remote device It handles all incoming and outgoing transmissions el private class ConnectedThread extends Thread private final BluetoothSocket mmSocket private final InputStream mmInStream private final OutputStream mmOutStream public ConnectedThread BluetoothSocket socket mmSocket socket InputStream tmpIn null OutputStream tmpOut null Get the BluetoothSocket input and output streams try tmpIn socket getInputStream tmpOut socket getOutputStream catch IOException e j mmInStream tmpIn mmOutStream tmpOut public void run byte buffer new byte 1024 int bytes Keep listening to the InputStream while connected while true try Read from the InputStream bytes mmInStream read buffer Send the obtained bytes to the UI Activity Message msg new Message msg obj buffer msg what newgraph MESSAGE_READ newgraph this my ViewUpdateHandler sendMessage msg catch IOException e break bees 69 APPENDIX D Source code for GraphView java package com example androidone import android content Context import android graphics Canvas import android graphics Color import android graphics Paint import android graphics Paint Align impor
70. through the ventricles and must less than 0 1 seconds for normal ventricles contraction The T wave represents ventricles repolarization which setting up the cardiac muscle for another contraction Sometimes it will follow by U wave that represents the purkinje fibers repolarization The PR interval is the conduction time required for an electrical impulse to be conducted from the atria to the ventricles The duration is normally 0 12 to 0 20 seconds and it is important to indicate heart block problems The QT interval is measured from the beginning of the QRS complex to the end of the T wave A normal QT interval is about 0 40 seconds The ST segment connects the QRS complex and the T wave It represents the measured time between ventricular 17 depolarization and the beginning of ventricular repolarization which normally last about 0 08 seconds The normal period of one cardiac cycle is between 0 6 seconds to 1 0 seconds which it represents the heart rate or the number of heart BPM Thus the heart rate for normal rhythm is between 60 to 100 BPM The ECG strips is best interpreted from lead II or lead V1 which the lead shows the most clearly rhythm of the heart according to Einthoven s Triangle 14 Figure 2 3 2 shows normal ECG signal from the standard lead II 2 5 Bluetooth wireless communication technology Bluetooth also known as the EEE 802 15 1 standard is based on a wireless radio system designed for short range and cheap devices Th
71. ture 1s not only capable of storing the ECG signal but also it is an embedded real time system that captures process detects analyzes and notifies possible dangerous abnormalities Furthermore the research shows that MOLEC has the lowest error of 3 581 in classifying beats and it also classifies rhythms Martin Ekstrom in his thesis entitled Small wireless ECG with Bluetooth communication to a PDA recommend the PDA running the window mobile 5 0 and at the same time be able to run LabView 8 0 for pocket PC 9 LabView 8 0 is a platform developed by National Instrument for graphical programming for instrument communication Besides this PDA must support Bluetooth Virtual Serial Port Support and WIDCOMM Bluetooth driver BTW CE 1 4 However the PDA used in this project is based on Android operating system The reason to choose Android as the mobile operating system to develop this application is the existence of an expanding collection of free development tools such as a debugger libraries a handset emulator documentation sample code tutorials support libraries and open source projects Besides the phone features also include camera Wi Fi and Bluetooth which suite in this project By using the Bluetooth and ZigBee wireless communication technology we can transfer data easily between transmitter wireless converter computer and PDA which made the whole system more mobility Furthermore the Android phones are becoming more popula
72. ulate their properties programmatically 17 3 6 2 The AndroidManifest xml file Every single Android application must have an AndroidManifest xml file in its root directory This manifest presents an essential information about the application to the Android system information the system must have before it can run any of the application s code The android manifest files does the following things 18 33 1 Itnames the Java package for the application The package name serves as a unique identifier for the application 2 It describe the components of the application such as activities services broadcast receivers and content providers that the application is composed of It names the classes that implement each of the components and publishes their capabilities These declarations let the Android system know what the components are and under what conditions they can be launched 99 It determines which processes will host application components 4 It declares which permissions the application must have in order to access protected parts of the API and interact with other applications 5 It also declares the permissions that others are required to have in order to interact with the application s components 6 It lists the Instrumentation classes that provide profiling and other information as the application is running These declarations are present in the manifest only while the application is being developed and test
73. user click on Next button 1t will go to the next GUI as shows in figure 3 13 aro This application enable the WiFi to be connected automatically If still cant be connected please click on button below to refresh h button Not connected Click on Refres Not connected Click on Refresh button Figure 3 13 GUI for WiFi application 3 In order to connect W1 F1 hotspot user is asked to click on Refresh button It will start to automatically connected to the remember hotspot If the connection had been obtain the next GUI shows the connected Wi Fi application in figure 3 14 46 HA BBA OD bil G 11 30am AUT IM Serres This application enable the WiFi to be connected automatically If still cant be connected please click on button below to refresh a a a a E 1 1 Mm y Te ction 192 168 1 104 Figure 3 14 Connected WiFi GUI Figure 3 14 also shows the IP and SSID address for the connected W1 Fi hotspot However when the user select VideoRecording from the spinner list and click on Click on setting button it will go to next GUI as shows in figure 3 15 Figure 3 15 GUI for video recording application The video recording is started by touching the screen and stopped recording by touching again the screen The recorded video is saved in the SD card 47 Figure 3 15 also shows four radio buttons These radio buttons are implemented for future usage like sending the respective vid
74. y of common data acquisition boards as long as a development library which offers a common programming interface to grant acquisition hardware interchangeability 7 23 CHAPTER 3 DESIGN AND IMPLEMENTATION 3 1 Design specification 3 1 1 GUI for video recording Wi Fi and Bluetooth applications The main layout for GUI shows UTM logo and a button By clicking the button it will load to the second layout For the second layout it has a spinner which enable the user to choose a connection either video recording Wi Fi or Bluetooth applications By choosing the desired selection the user need to click a button to proceed each application 3 1 2 Video Recording application In order to start recording video the user need to touch the screen and stop recording by touch again the screen The recorded video file format is mp4 and save in SD card 24 3 1 3 Wi Fi application The check box widget is used to enable the Wi Fi by checking the check box After enabling the Wi Fi it will automatically connected to the remember hotspot 3 1 4 Bluetooth application 3 1 4 1 PDA Bluetooth application User need to active their Bluetooth setting to enable Bluetooth The limitation of this application 1s the user need to hardcoded their computer Bluetooth MAC address into application in order to communicate with each others 3 1 4 2 Computer Bluetooth application In order to communicate between PDA and MDIzb BlueSoleil 6 0 tri

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