Preliminary Design Report
Contents
1. een zess ER n e ee E FERT PIERII us EE za AA EA S 2 E ES Tc TT TT a I E D E o as 0d L1 1 O IO O IS OS re AO O O IO IO O O O OS Tee ee EE n ER cc nn EE Ee al eremo mer o L L L L L L L T T Lem a A O O O O O O O O O EEEEENENENE E NN LN Ct fam NENNEN ARS O RS OI O O IS O O O O O A reme IO PE s Cte oy y ml IN IO O IS O O O O O O EE OS O TZ IES ASS eee LL S S S T S III o p a OUT o egenen 7 tL aeee si all aed 1 BEE SOR RE EE eee E EA E E E ET 26 Asklepius Pill Dispenser Fall Pert Chart pl am e xj ra 9 Project Selection Project Launch Preliminary Design sz o s ov o om or o 10 al E Conv ios o 19 28 ces La cl La Bin Design Gearing Design 105 3 1075 P wee o us ro 7 Slide Design uz o una Auger Casing Design Las 3 10 25 es d 7 Device Housing Design op o ina gen e Electrical Design Alarm Selection Ex Lal Design Power Circuit ios o 10 2 Sensor Selection ms s Battery Selection 11 4 ria Lal Program Design ios o iun rs d 7 Microprocessor Selection 108 o 10 15 ge 7 Design User Interface fis 7 108 o 1015 ras 7 io o 10 5 eaz o7 Wi Fi Selection ios o 10 15 ro d 7 Memory Design2. Description 32 Asklepius Pill Dispenser Pills Loading Process e Unlock and open the door of the device to access pill storage bins inside the device Insert each type of pill into one of the storage bins Be sure to only put one type of pill into each bin Close and lock the device Make sure the device is plugged into a power outlet and the power is switched on Programing Process Program the device using a laptop computer wirelessly connected to the device e Specify the type of pills in each storage bin e Specify the doses and the times these doses are to be taken Enter the email address you would like to be notified at in the case that the patient does not receive their pills Patient Pill Retrieval Process e Turn off the alarm located by the pill tray Verify that the person receiving the pills is correct e Grab pills from the pill tray Technical Requirements A pills dispenser project titled PEZ was completed by one of the 2010 2011 Senior Design groups Some of our technical specifications were selected with intentions of making improvements on last year s project e It will successfully provide the proper pills specified by the caretaker in a minimum of 40 out of 40 tests It will be able to service pills ranging from 10 mg to 1 g 33 Asklepius Pill Dispenser e It will weigh less than 130 N 30 Ibf e ts dimensions will be less than 0 46 m 18 in high 0 38 m 15 in wide and 0 38 m 15 in long Las
3. More than one in five seniors take five or more different prescription drugs every day Here is a table showing the number of drugs taken daily by seniors 2 Table 1 Number of pills taken by people over 65 Pills Taken Percentage of Seniors 0 1896 1 2 3696 3 4 25 5r 21 Keeping track of medication is a burden for the elderly Arthritis poor eyesight poor hearing and memory lapses can make it difficult for some older people to take their medications correctly Studies have shown that between 40 and 75 percent of older people don t take their medications at the right time or in the right amount 1 The consequences for not taking medication properly can be fatal When two or more drugs are mixed in the body they may interact with each other and produce uncomfortable or even dangerous side effects 1 Medication users desperately need a product to keep track of their medication and administer the correct amount at the correct time 30 Asklepius Pill Dispenser Some people organize medication by putting it into a small container that is partitioned into seven smaller containers each representing a different day of the week This method is very tedious and also fails at organizing many varieties of medication It does nothing to help people remember to take their medication There is another device which allows a user to organize pills into 29 separate bins and set a timer that will alert the user when it i
4. Pill Dispenser Budget Cost Unit Total Date Possible Vendor Units Cost Estimated Mechanical Components Geared Motors www servocity com 24 99 9 224 91 10 8 Plexiglas Sheet 72 x36 www lowes com 54 98 1 54 98 10 8 Zinc Corner Brace 4 braces in each screws included www lowes com 2 38 4 9 52 10 8 Electrical Components PCB www expresspcb com 61 00 1 61 00 10 3 Inverter misc www digikey com 20 00 1 20 00 10 3 Battery www planetbattery com 30 00 1 30 00 10 3 Alarm www digikey com 12 00 1 12 00 10 3 Power Supply misc www digikey com 12 00 1 12 00 10 3 Photo Diode Sensor www digikey com 5 00 9 45 00 10 3 Computer Components Microprocessor www microchip com 5 00 4 20 00 10 8 Wi Fi Module www microchip com 25 00 1 25 00 10 8 LCD Screen www futurlec com 10 00 1 10 00 10 8 Keypad www futurlec com 5 00 1 5 00 10 8 Total 529 41 Contingency 500 59 Budget 1030 00 29 Asklepius Pill Dispenser Appendices Project Launch Document Overview The number of people over 65 is increasing due to the aging of the Baby Boomers the generation of people born between 1946 and 1964 One of the greatest demands of this generation is medicine People over the age of 65 buy 30 percent of all prescription drugs and 40 percent of all over the counter drugs 1 The average number of pills taken daily by people over the age of 65 is 2 9
5. rpm for each motor 13 Asklepius Pill Dispenser Sensors The photo sensors will be attached to the end of each auger casing mechanism A reading from the sensors will be sent to the microprocessor when a pill has been dispensed The microprocessor will send a signal to the motor to stop rotating the screw Inputs e Power System 15 V 4 5 mA e Pill Storage and Dispensing Mechanism pill dropped signal from the pill storage and dispensing mechanism Output Microprocessor signal of 0 14 V 4 5 mA 14 Asklepius Pill Dispenser Microprocessor The microprocessor will integrate all of the electrical components of the device and allow the caretaker to program the dispensing of the medication Inputs e Power supply 3 3 V at 250 mA e Control signals from power supply 0 5 V at 5 mA e User Interface signals from the keypad and medication retrieval switch e Sensor signal of 0 14 V at 4 5 mA e Wi Fi Transceiver Module medication information and other information from the caretaker Outputs e Power Supply signals of 0 5 V at 5 mA e User Interface commands to the LCD screen e Wi Fi Transceiver Module message to be emailed to the user 15 Asklepius Pill Dispenser Wi Fi Transceiver Module The Wi Fi transceiver module will connect to the Wi Fi network and allow the user to access the device through this network It will receive information from the graphical user interface and will also be used to send emails to the caretak
6. sure she completes her tasks Emilia Faraj Electrical Engineer Emilia is responsible for maintaining the budget She is responsible for the electrical designs for the power supply the alarm and the sensors She will work with Andrew in the electromechanical components of the dispensing mechanism She will back up Ethan to make sure he completes his tasks 20 Asklepius Pill Dispenser ork Breakdo e Fall 20 De ptio De ab 3 Op People ae e oe EH EC relie E will pursue Project Launch Technical description of the Document and 9 7 924 AEF ELJ project s goals Presentation Preliminary Breakdown of all sub systems Document and 9 26 10 4 AEFELJ Design in the device Presentation e Motors that will drive the Detailed design and Mechanical 8 10 5 10 28 EF A 8 auger s rotation construction plan Conversion EE Bins into which the pills will Detailed design and 10 5 10 25 J A be placed construction plan Auger Casing Auger casing mechanism for Detailed design and 10 5 10 25 AJ Design transporting pills construction plan Gonin Desig Gearing system to adjust Detailed design and 10 29 11 2 AJ rotational energy gear selection Device Housing The material shape and Detailed design and 11 7 11 14 LA Design dimensions of the device body construction plan Slide Design Slide which will transport the Detailed design and 11 7 11 14 J A pills to the retrieval area construction plan Circuit that w
7. the reliability requirement The device will be weighed with a bathroom scale to determine that it meets the weight requirement The device will be weighed ten times The mean of these measurements must be under the requirement listed in the technical requirements e The device will be measured to determine that it meets the volume requirements These measurements will be made with a measuring tape The height width and length of the device will be measured ten times each The mean of these measurements must be less than requirements listed in the technical requirements For example the height of the device will be measured ten times with a measuring tape These ten measurements will be averaged That mean must be less than 0 46 m The definition of the height weight and length is described in the technical requirements 37 Asklepius Pill Dispenser e The life of the back up battery will be tested The battery will be fully charged and the device will undergo eight days worth of dispensing in a 24 hour period This assumes the worst case scenario of dispensing a pill from every bin three times a day which adds up to dispensing a pill from each bin 24 times We will do eight days worth rather than seven to account for the total time throughout the week that the device is not dispensing e The intensity of the alarm will be measured with a digital display sound level sensor from radio shack 5 The sensor reads from 50 to 126 dB and
8. will be placed within three feet of the device The alarm intensity will be measured from within this distance ten times The mean of these measurements must fall within the range listed in the technical requirements e Random people will be asked to program the device The number of people that perform this test must at least be above ten The time it takes a person to program the device will be recorded by one of the team members The time needed to program the device does not include the time taken to learn how to use the device The programming time of all of the testers will be averaged To successfully meet the ease of use requirement this average must be under five minutes To determine that a container holds a month s supply of pills 90 pills will be poured into a container If all of the containers are the same size then this test will only need to be performed on one of the containers If the containers are different sizes then this test will be performed on the smallest container The pills used in this test must be category four To successfully meet this test 90 pills must fit into the container without spilling over the top 38 Asklepius Pill Dispenser We will connect the device to a WEP WPA and WPA2 secured Wi Fi network five times each If the device successfully connects to the Wi Fi network five times consecutively for each type it has passed this requirement Any number of tests before or after each of these five t
9. 10 6 22 10723 27 paa ou System Analysis uns o 122 pe a Interim Design Report us o 126 Legend EX Mechanical Construction EE Electrical Construction Critical Path do ration Task Name stan slak Finish Asklepius Pill Dispenser d P w e Device Housing Spring Pert Chart us o ns Legend e Ta _ E Mechanical Construction us o uo sa 7 zs o 215 E Electrical Construction ss a Jum o 27 ss 7 Auger Casing R m Duration ME uo o 1 30 ae o ns San Slack Finish LS 7 ss 7 Motor Testing Gear Testing i szo a Lus a Dum Psu T ans o me sa TT a sio 1 System Testing T Construction rter C tructi Lum 9 n s 13 Lam T as us o 123 Final Design Review s 7 ans 19 an Pee T Dae us o us sir 6 Dispense Medication Tal a Keypad Testing sis 7 al zo o ns 7 us o um Wi Fi Setup Program er uz o un MEN on o zs INE sis 6 sia ECH Medication Retrieval Confirmation Program LCD Screen Testing uo o us 29 o jns sis 1 us o va 28 s23 La Reiview Lanz o ars Asklepius
10. EL Interface schematics a computer Lay out all of the information that will need to be stored in WA eee RAS Memory Design memory and organize the 3 10 16 10 23 EL E EUROS and parts selection information into data structures in Aasi Ensure that all systems will Final system and 11 15 122 AERELJ integrate properly subsystem design Mein Technical description of the EE 8 final system and sub system 11 15 12 6 A EF EL J Report design Presentation 22 Asklepius Pill Dispenser S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 s12 Device Housing Description Construct the device Deliverables Housing that meets Work Breakdown Structure Spring 2012 Start Stop People 4 dimensions 1 9 2 15 J A EF EL Construction housing requirements Contruct the bins in Se os SEH Bin Construction which the pills will be RUE 1 9 1 30 LA that can fit into the placed e device Construuct the AE Auger Casing S mechanism is able to auger casing E S 1 9 1 30 A J Construction dispense one pill at a mechanism A time which will transport Side S able to Slide Construction SP transport pills to the 1 31 2 7 J A pills to the retrieval retrieval area area Test the motors to Motor Testing E R E Working motors 1 9 1 16 EF A provide correct rotation and torque Test gears to ensure Working gears Gear Testing that they modify attac
11. For the device to be useful it needs to at least achieve accuracy greater than that of the patient remembering to take their pills with reminders from the caretaker The device needs to service a large variety of pills If there are many types of pills that are not serviceable by the device then the device will not appeal to a large percentage of its target market The device needs to be light enough for an average person to carry easily The device needs to be portable and easy to handle It needs to fit comfortably on an average kitchen counter top which has 0 46 m 18 in of space between the counter top and upper cabinets 4 The device needs to remain active at all times Since the device will serve a critical application the device needs to remain in operation in the event of a power failure The device needs to alert the patient when a dosage is ready The device needs to be easy for the average person to set up This means that it needs to be easy for the average person to insert pills into the device and program when they should be dispensed by the device The internal components of the device need to only be accessible to the caretaker This is to prevent other people such as the patient from accessing the pills inside the device The device needs to hold a month s supply of pills This will increase the ease of use for the caretaker The device needs to notify the caretaker when the patient does not take their pills Operational
12. HARDING UNIVERSITY d Preliminary Design Report Asklepius Pill Dispenser Andrew Combs Emilia Faraj Ethan Lilly Jeff Wood Oct 12 2011 Asklepius Pill Dispenser Table of Contents Back sound EID e ere ie pede RO Exact HEIN p ROSE e ET 3 System OVERVIEW is eec ve NE A A A A VATER E e EE NR 4 System Design Functional Decomposition Duagerams esses eene mene 5 Functional Description of Blocks ii a 8 Project Plan Organization and Manasement o u do 20 Work Breakdown Structure A E A A vested 21 EE 23 Gantt Charts Pall A Ears 25 Spring EE 26 Pert Charts e RE 27 opns EE 28 Ier 29 Appendix Project Launch DOCM in 30 Asklepius Pill Dispenser Background Medicine is one of the greatest demands of people over 65 The elderly rely on medicine to maintain an active and independent lifestyle Keeping track of medication can be complicated The elderly must often take multiple types of medication at different times of the day Keeping track of these medications is a burden for the elderly Arthritis poor eyesight poor hearing and memory lapses can make it difficult for some older people to take their medications correctly Overdose of medication or forgetting to take medication can have deadly consequences The elderly desperately need a product to keep track of their medication and administer the correct amount at the correct time The Asklepius medicine dispenser meets this need by providing a product that will
13. cess of the test is dependent on two factors First the dispensing operation must begin at the time programmed into the device The operation will be counted as being on time if it begins within one minute of the programmed time Second the operation that begins at the said time must result in the amount and type of pills being dispensed as programmed by the caretaker This means that the pill s that are programmed to dispense at a certain time do not have to land in the retrieval area at that time They only need to land in the retrieval area as a result of an operation that begins at 36 Asklepius Pill Dispenser that time If both of these requirements are successfully met then the result of the test is successful Otherwise the test is not successful Forty tests will be performed These tests will fall into one of four categories Each category tests pills that fall within a certain range of masses The categories are 10 mg to 250 mg 250 mg to 500 mg 500 mg to 750 mg and 750 mg to 1 g For example a pill that weighs 100 mg is a category one pill The forty tests will be divided evenly between these four categories meaning that ten tests will be done with pill sizes in only one category The device must perform successfully in forty consecutive tests with the variability of pill types as described above Any number of other tests may be performed before or after these forty tests without affecting whether the device successfully meets
14. er Inputs e Power Supply 3 3 V 150 mA e Microprocessor message to be emailed to the caretaker e Information from GUI medication information and other information from the caretaker Outputs e Microprocessor medication information and other information from the caretaker e Email to the user email in the event that the user does not take their medication Battery The back up battery will power the device in the event of a power failure It will be able to power the device for at least a week Inputs e Power Supply charges from the power supply Output e Power Supply provides power to the power supply in the event of a power failure 16 Asklepius Pill Dispenser Power Supply The power supply consists of all the circuitry that will power the pill dispenser Inputs e Wall Outlet 120 VAC at 60 Hz and a maximum of 6 A e Control Signals signals from the microprocessor that control the power given to the devices Outputs e User Interface 3 3 12 VDC and 320 mA powers the devices in the User Interface e Alarm 0 5 VDC and a maximum of 250 mA powers the alarm e Control System 3 3V 1 5 V and a maximum of 405 mA powers the devices in the Control System e Pill Storage and Dispensing Mechanism 3 to 12 VDC and a maximum of 200 mA powers the motors in the Pill Storage and Dispensing Mechanism Medication Retrieval Switch The switch will be used to turn the alarm off when the medication is retrieved by the user It will als
15. ests may be performed without affecting whether or not this requirement has been met successfully e To determine if the device successfully emails the address given by the caretaker when pills are not taken we will purposefully allow the alarm time to run out 10 times after dispensing pills If an email is sent for all 10 tests consecutively this requirement has been met Any number of tests before or after these 10 tests may be performed without affecting whether or not this requirement has been met successfully For normal operation the time that the device would wait before sending an email will be 30 minutes however for the purpose of this test that time will be reduced to 1 minute References 1 Pueblo Colorado Federal Information Center Medication advice for seniors http www pueblo gsa gov cic text health meds4old 697 old html 2 Minnesota Board on aging http www mnaging org pdf Prescription 20Drug 202002 PDF 3 Shopping page for a competing pill dispenser at Wheel Chair Select http www wheelchairselect com Telemergency royalty 100 VCW 1000 html 4 Dimensions Guide http www dimensionsguide com average kitchen dimensions 5 RadioShack s website http www radioshack com product index jsp productId 2103667 39
16. hed to the 1 17 1 24 AJ rotation correctly motors S Test that the alarm is Working alarm within EE within 80 to 90 dB dB limits St EE Test that the sensors Sensor testing detect pills Working sensors 2 8 2 15 EF consistently uds AE Battery passes batter Battery Testing one week s worth of E YP Y 1724 1 31 EF life test dispensing Build an inverter that Inverter converts AC from a d E Construction wall outlet to DC Working emen m ps Ep voltage Build a circuit that Power Circuit supplies electrical ET Construction energy to the other MOOD 124 Cu EP components Test that the Microprocessor microprocessor Working 1 9 1 23 EL Testing responds correctly to microprocessor all specified events 23 Asklepius Pill Dispenser Work Breakdown Structure Spring 2012 ENS Description Deliverables Start Test that every key on NIKE Keypad Testing the keypad sends the Working Keypad 1 9 1 23 EL proper signal LCD Screen Test that the LCD S14 displays all necessary Working LCD Screen 1 9 1 23 EL Testing characters properly Test that the Wi Fi module can connect to iem SE Wifi Testing WEP WPA and o Es 1 9 1 23 EL WPA2 secured networks S16 Program User Program the wireless Graphical user 2 1 2 8 EL Interface network interface interface i Finish writing the code Dispense that controls the JM Medication Program code 2 9 2 15 EL dispensing of the Program Hee medicat
17. ill supply power e ee EE E ee EE EF Circuit and parts selection the device ERTIES EOR Alarm that will alert the patient Detailed schematic 10 26 11 1 EF when medication is ready and parts selection 21 Asklepius Pill Dispenser Work Breakdown Structure Fall 2011 Description Deliverables Start Stop F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 Sensor that will detect when a Detailed schematic DEES pill is dispensed and parts selection 100 an br Battery to provide backup Battery Selection power in the event of a power Battery selection 10 29 11 4 EF outage Create flow charts for all of Pincha cand Program Design the programs and begin 10 8 11 11 EL se starting programs writing Keypad that will allow the F n Keypad Selection caretaker to connect the device Detailer schema is 10 8 10 15 EL adn and parts selection to a Wi Fi network LCD Selection A screen that will display Detailed schematic 10 8 10 15 EL characters to the users and parts selection pai A wi fi module that will allow Wifi Module the device to connect to a wi fi Detailed schematic jor ions EL Selection and parts selection network A microprocessor that is able e KE to control all electronic O ds est as EL Selection and parts selection devices User interface for Design User programming the device using ou mC HD vend 10 16 10 23
18. instructions that go with taking the medication Output e The information packets sent to the Wi Fi network 19 Asklepius Pill Dispenser Project Plan Organization and Management The Asklepius Pill Dispenser team comprises two mechanical engineering students one computer engineering student and one electrical engineering student The project s management and design tasks will be distributed among the team into the following responsibilities Andrew Combs Mechanical Engineer Andrew is the team leader of this project He is responsible for making sure that the subsystems are completed and integrated on time He is responsible for making sure that all reports and presentations are completed on time He is responsible for the design and construction of the auger casing mechanism and the gearing subsystems Andrew will work with Jeff to make sure all of Jeff s tasks are completed Jeff Wood Mechanical Engineer Jeff is responsible for making the SolidWorks drawings of the design He is responsible for the design and construction of the device housing pill storage bins slide and pill retrieval area He will work with Andrew to make sure that all of Andrew s tasks are completed Ethan Lilly Computer Engineer Ethan is responsible for programming the microprocessor and constructing the user interface which includes the LCD screen keypad graphical user interface and the Wi Fi interface Ethan will back up Emilia to make
19. ion Medication Finish writing the code Retrieval that checks to make S18 Confirmation sure the medication Dando zd 22 BE Program was taken Finish writing the code S19 Wi Fi Set Up that alllows the SE 1 24 1 31 EL Program caretaker to connect to a wi fi network Assemble and arrange All components are SUN System Integration all components in the secured in the device 2 16 3 19 J A EL EF device housing E S vste Pass all tests described SAM System Testing ere in the device testing 3 20 4 3 LA EF EL Testing Plan plan Report on progress Final Design issue resolution Report and S22 Review testing plan and Presentation s Sc TAEL EL budget Report on system EEN product Readiness demonstration results Report and 412 4 26 LAEREL Review Presentation budget and resources 24 Gantt Chart Fall 2011 Asklepius Pill Dispenser la LP oa ee O O O O O O OS O O O IA E E Qi a E E E E EEES di ira L Dui sor ea wed n E E Fab TTT aod PEU Lee j j WEE PS un Es UNE E L pam LL LL su zn sees E B rj eme j WEEN HH SS A D CECT TT Teel LL LL el AO O O O O O O O IT ES v zi zz T1 Oz T1 1 T11 al os 0T ez 0t ant e ot z ot sz e si e TU St ees il ead gee aswel Ab T 25 Asklepius Pill Dispenser Gantt Chart Spring 2012 la ft
20. keep track of the user s medication The device will dispense the medication at times specified by the user and will alert the user when it is time to take their medication Asklepius Pill Dispenser System Overview The Asklepius Pill Dispenser device will help users to keep track of their medication by dispensing the correct pills at the correct time The user will program the device to dispense pills throughout the day They will do this using their computer to link to the device using a Wi Fi network The device will also have a keypad that will allow the user to connect the device to the Wi Fi network When a dose of pills is dispensed by the device an alarm will sound to remind the user to get their medicine from the device It will also display any instructions that are needed for taking the medication The device will verify that the user has retrieved their medicine If the user does not retrieve their medicine the device will send an email to an address programmed into the device Most of the device s components will be contained inside an external housing This housing will have a door with a lock The user can access the interior of the device through this door The interior will contain nine storage bins Each bin will store pills of one type The dispensing mechanism will transport one pill from one of the bins to the area where the user will pick up the medicine The dispensing mechanism is an encased auger that will be attached under
21. neath each of the bins When the pill falls out of the encasement it will slide on a slide to the retrieval area The device s control system will store all of the data supplied by the user and all of the device s programs The dispenser will be powered by a standard 120 V AC 60 Hz wall outlet but will also have a backup battery that will power normal operation of the device for seven days in the event of a power outage Asklepius Pill Dispenser System Design Functional Decomposition Diagrams Level Zero Pills Pills Lock A d Wall Outlet 465 Alarm Confirmation of Pill Retrieval Caretaker Input gt Kader Legend TY Material Energy AS gt Signal Level One Pills Pill Storage and E Pill Dispensing S Device Mechanism Lock Housing I 3 12 VDC 200 mA i Pill Dropped i 120 VAC 2 8 A 60H Wall Outlet z Control Emailto System System Caretaker Confirmation of Pill _______ Retrieval User Alarm Interface Caretaker Input Message to User Legend Sch Material e Energy tias gt Signal Asklepius Pill Dispenser Level Two Pill Storage and Dispensing Mechanism Pills Pill Slide and purge Pill Tray Bins Torque 619 oz in 1 RPM 3 12 VDC 200 mA Electrical to Power Supply Mechanical Energy Legend CA Material Energy Signal Level Two Power System Control Signals 33V 15V Motor On Off 255mA 120 VAC 2 8A Co
22. ntrol System Wall Outlet Alarm Control Signals 3 3 12 V 470 mA User Interface Legend C Material Energy Sarmas gt Signal Pill Droppped Pill Asklepius Pill Dispenser Level Two Control System Power S bpi 3 3 V 250mA Pply 5V 5 mA Control Signals to Control Signals 0 5V5mA _ Power Supply From Power Supply Microprocessor From User Interface o ToUser Interface 0 14 V 4 5 mA 15 V 4 Power Supply TEIS M AS mA Pill Dropped 3 3 V 150 mA ifi Wi fi Power Supply er Email to Caretaker Information from GUI Module Legend gt Energy E Signal Level Two User Interface This block is not part of the device Graphical User Interface Caretaker Input _ From Computer Information to Microprocessor 5 V 300 mA Power Supply Commands From Message to User Microprocessor Confirmation of Pl pun Retrieval etrieva Switch ARE To Microprocessor 12 V 20 mA Power Supply Caretaker Input Asklepius Pill Dispenser Functional Description of Level 1 Blocks Device Housing The device housing will protect the components of the device The housing will have a door with a lock that will prevent access to the pills Its dimensions will be less than 0 46 m 18 in high 0 38 m 15 in wide and 0 38 m 15 in long Input e Lock a lock prevents unwanted entry into the device housing O
23. o make sure the user doesn t receive an email when it is turned off Input e Confirmation of Pill Retrieval the user will trigger the switch when retrieving medication Output e Microprocessor signal that medication has been retreived 17 Asklepius Pill Dispenser Keypad The keypad on the device will allow for the caretaker to input the name of the Wi Fi network and the password in order to connect the device to a Wi Fi network Inputs e Power Supply 12 V 20 mA e Caretaker Input Output e Microprocessor LCD Screen The LCD screen will give prompts to the caretaker and display characters as the caretaker inputs them into the keypad This will assist the caretaker in connecting the device to a Wi Fi network It will also inform the patient of any instructions for a particular medication when it is dispensed Inputs e Power Supply 5 V 300 mA e Commands from the microprocessor to display characters clear the screen etc Output e Messages to the caretaker or patient 18 Asklepius Pill Dispenser Graphical User Interface The graphical user interface will be the intuitive interface that the user will use on their computer to program the device to dispense medication properly This is not be part of the device but is instead the software that is used to interact with the caretaker Input e Caretaker Input information from the user such as number of pills what bin the pills are placed in times to dispense pills and any
24. ogram a 3 medication min 5 4 Amount of pills in each bin pills 90 5 Intensity of the alarm dB 80 90 Time for battery to 6 discharge week 1 7 Weight of pills mg 10 1000 8 Lock bool TRUE 9 Successful dispensing tests 100 10 Time to alert caretaker min 30 11 Wi Fi connection bool TRUE Table 3 Needs Metrics Matrix 1 2 3 4 5 6 7 8 9 10 11 E Wels PE m S88 2 8 sl 2 5 al 8 255 lE EE JHHBHHEHE lt E E 2 o Els E ES Internal components of the device only accesible to the caretaker Consistently provide medication Alert the caretaker if a dosage has not been taken eee de du 35 Asklepius Pill Dispenser Deliverables e Pills Dispenser device e Systems capability specifications Detailed schematic and final report on device functionality e User manual e Parts manual and corresponding budget Testing Plan The general testing procedure for the efficacy of the dispensing mechanism of the device will be carried out as follows Pills will be inserted into the device For the purpose of this test we will not limit ourselves to actual pills we will allow for other forms of solid orally ingested tablets and capsules such as mints or candies The device will be programmed to dispense the pills at a set time There are no requirements for what this time will be e The success criterion described in the following paragraph will be determined by visual observation by one of the team members The suc
25. s time to take their medication The problem with this is that each bin only has enough space for three pills at the most and the alarm can only be set to go off once a day It also does not dispense the pills but leaves them accessible to the user 3 The Asklepius medicine dispenser will solve these problems making it easier to organize medication It will be quick easy to setup and will allow a person to stay organized for a month at a time The device will also sound an alarm when it is time to take the medication The Asklepius medicine dispenser is the superior alternative Problem Statement Taking the correct medication at the correct time is challenging for the elderly and can be a burden on loved ones Not taking medication properly can be very dangerous and potentially fatal The age 65 and over market demands a cost effective device that will keep track of and dispense the proper amount of medication at the right time Customer Needs The caretaker is the person who sets up the device and is assumed to have the technical skills of an average person The patient is the person receiving pills dispensed from the device and might have mental difficulties The caretaker will organize pills into the device and then set it up to dispense a certain amount of pills at specified times 3l Asklepius Pill Dispenser The device needs to consistently dispense the amount of pills entered by the caretaker at the time entered by the caretaker
26. t year s dimensions were 0 54 m 21 25 in 0 44 m 17 5 in and 0 48 m 19 in respectively The spatial dimensions of the object are defined as the smallest cube needed to encapsulate the object For example the height of the device is the distance from the base of the device to the tallest point on the device e A back up battery will be used as a fail safe in the event of a power outage It will be able to power the device for one week e The device will have an alarm that will sound when the pill is being dispensed The alarm will have a volume between 80 to 90 dB e An average person will be able to program the device in less than 5 min The device will have a lock that only the caretaker can open This lock will bar access to the pills e The device will store 90 pills of each medication The device will be able to connect to a WEP WPA and WPA2 secured Wi Fi networks The device will email the caretaker when the patient s pills are not taken within 30 minutes of the alarm initially sounding 34 Asklepius Pill Dispenser Table 2 Technical Specifications Large variety of medication Alert the patient when a dosage is ready Remain active at all times 2 00 w E O E Portable and easy to handle Easy to program Month s supply of medication No Metric Units Value 1 Total Weight N lt 130 0 46 H x 2 Device Size m 0 38 x 0 38 Time to pr
27. ts of the microprocessor and the sensors that read if a pill has been dispensed Inputs e Power Supply 3 3V 1 5V at 405 mA with signals of 0 5 V 5 mA e User Interface input signals from the keypad and medication retrieval switch e Pill Storage and Dispensing Mechanism pill dropped signals Outputs e User Interface commands to the LCD screen e Power Supply signals of 0 5 V 5 mA e Email message when the user doesn t take their medication 10 Asklepius Pill Dispenser User Interface The user gives information to the device using the user interface Inputs e Caretaker Input the medication information supplied by the user e Confirmation of Medicine Retrieval this is the input from the user to the device that lets the device know that the user has received their medication e Power Supply 3 3 12 V and 320 mA from the Power System e From Control System commands to the LCD screen Outputs e Message to User all of the messages displayed on the LCD Screen e Information to Control System signals from keypad and medication retrieval switch Alarm The alarm will sound when the pills have been dispensed The volume of the alarm will be between 80 dB and 90 dB It will have a switch for the user to turn it off Input e Power supply 0 5 V at 250 mA Output e A tone between 80 90dB 11 Asklepius Pill Dispenser Functional Description of Level 2 Blocks Pill Storage Bins The pill storage bins will each hold one
28. type of pill There will be a total of nine bins Each bin will hold 90 pills Input e Pills the pills placed inside the pill storage bins by the caretaker Output e Pills pills extracted by the auger casing mechanism Slide The slide will be positioned underneath the end of the casing of the auger casing mechanism When a pill falls out of the casing it will fall onto the slide The pill will slip down the slide to the retrieval area Input e Pills pill that falls out of the casing Output e Pills pill in the retrieval area 12 Asklepius Pill Dispenser Auger Casing Mechanism The auger casing mechanism will extract pills from the pill storage bins This mechanism consists of an auger screw encased in a tubular casing One pill at a time will be moved from the pill storage bin to the slide by the turning of the auger Inputs e Pills the pills stored in the pill storage bins e Electrical to Mechanical Energy Conversion rotation at a torque of 619 oz in and rotational speed of 1 rpm Outputs e Pills a specified number of pills released by the mechanism e Pills Dropped the dropped pill triggers a photo sensor Electrical to Mechanical Energy Conversion The electrical to mechanical energy conversion takes the electrical energy supplied by the power circuit and converts it to rotational mechanical energy Input e Power Supply 3 12 VDC 200 mA for each motor Output e Auger Casing Mechanism shaft rotating at 619 oz in 1
29. utput e None Pill Storage and Dispensing Mechanism The pill storage and dispensing mechanism will store all of the pills inserted by the user It will move one of the pills in the storage bins to the area where it will be retrieved by the user Inputs e Pills the pills placed inside the pill storage bins by the caretaker e Power Supply 3 to 12 VDC and a maximum of 200 mA Outputs e Pills the pills slide into the area where they will be retrieved by the user e Pill Dropped the pill will trip the control system sensor that detects when a pill has been extracted from the auger casing Asklepius Pill Dispenser Power System The power system controls all of the electric power used by the device It receives electricity from a wall outlet It also contains the back up battery that will be used in the event of a power outage Inputs e Wall Outlet 120 VAC at 60 Hz and a maximum of 6 A e Control Signals signals from the microprocessor that control the power given to the devices Outputs e User Interface 3 3 12 VDC and 320 mA powers the devices in the User Interface e Alarm 0 5 VDC and a maximum of 250 mA powers the alarm e Control System 3 3V 1 5 V and a maximum of 405 mA powers the devices in the Control System e Pill Storage and Dispensing Mechanism 3 to 12 VDC and a maximum of 200 mA powers the motors in the Pill Storage and Dispensing Mechanism Asklepius Pill Dispenser Control System The control circuit consis
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