AppBlaster User Guide
Contents
1. 13 6 3 LOCE CREE Naara T E E I E T E E TI 13 Copyright CECID Page 3 of 14 1 2 3 kuch COM D NNN A 11 12 13 AppBlaster User Guide Version 1 0 11 May 2012 3 Introduction The AppBlaster is an android application that can enable disabilities to control the electric appliances through eye gaze The following diagram illustrates how it works Control Gateway Bluetooth Infrared Signal Android Device with AppBlaster Infrared controllable plugs The App Blaster will send signal to Control Gateway using Bluetooth and then the Control Gateway will send the signal to the corresponding infrared controllable plugs so that it can control the on off for the electric appliances that plugged to them As the AppBlaster has to control the electric appliance setup is necessary for configure the Bluetooth connection and also what signal should be used to control electric appliances Please see the Installation amp Setup section for details After the setup users should first perform training phase on AppBlaster before the operation Please see the Training Phase section for details For the operation on AppBlaster please see the Operation Phase for details Copyright CECID Page 4 of 14 1 10 1 13 14 15 16 17 18 19 AppBlaster User Guide Version 1 0 11 May 2012 4 Installation amp Setup 4 1 Software Requirement AppBlaster must be installed on the Android device with A2. AppBlaster User Guide Version 1 0 11 May 2012 CECID Produced by the Center for E Commerce Infrastructure Development The University of Hong Kong The contents of this document remain the property of and may not be reproduced in whole or in part without the express permission of CECID AppBlaster User Guide Version 1 0 11 May 2012 1 Status of This Document Ei Version History Copyright CECID Page 2 of 14 bech VD o JA Ch LD A W N NO NO F amp F bech KF KF FS bech bech bech ES Fesch O M ON NWN ra BW A ra ODO AppBlaster User Guide Version 1 0 11 May 2012 1 2 3 4 2 lable of Contents STATUS OF THIS DOCUMENT ee 2 1 1 AV ER STON HISTOR eege 2 TABLE OF CEET 3 INFRODUC VION E 4 INSTALLATION amp SEU Pivgccasssssaseessnccesessssorsatecsserrsminncnunecuuuuusnucuuunseiwuss 5 4 1 SOFTWARE REQUIREMENT aja enccascueuensneeidaddsoncaaensauiesanddaciavemnnidead EOE RN E EEEa ECEE 5 4 2 D AEEA Te 5 4 3 SEHR DE 5 4 3 1 Bluetooth Connection setup with Control Gateway ccccccccccsseeecccceeeecaessssesceceeaaaanseseees 5 4 3 2 KE 5 4 3 3 SCLUP TNE camera Zoom POUD oriri oann a aA NA ARTERA 7 KT et NL EA PIAS E d 5 1 SETTING THE GAZE TIME FOR TRAINING E 9 Ia TRA IN a a E EAN E E NN T O E ence cataaneeanonenes 10 OPERATION PHAS E 12 6 1 MOVE AND SELEC E 12 6 2 SET THE GAZE DURATION sasossnssadorspetccaeanaendonencoanosanesedarapabceabanapedeaenccanaiagnsadaiepabceaienaendeeenneneaes
3. confirm the adding of device DNA Rife lt fan 4 3 3 Setup the camera zoom ratio As for different device the camera zoom ratio may be different Therefore user may choose to change the camera zoom ratio for better eye detection and gaze direction detection accuracy In order to change the camera zoom ratio first go to the settings screen Copyright CECID Page 7 of 14 AppBlaster User Guide Version 1 0 11 May 2012 Be i BA SS RA RAL Then user can select the camera zoom ratio to change the camera ratio PAAR MAL E Copyright CECID Page 8 of 14 Nn E GO D N 10 11 12 13 AppBlaster User Guide Version 1 0 11 May 2012 5 Training Phase In order to use the AppBlaster user must at least perform the training phase once In the training phase AppBlaster will collect the eye gazing information from the user by asking the user to gaze on both the left and the right upper corner on the screen The time required for gaze on each direction during the training can be configured The longer the time the more accurate for the training however it may be rough to user Si Setting the gaze time for training In order to set the time required on gazing each direction during training the user can open the settings screen Be ER SRA MALE Then the user click the training the following screen will be shown e ECH Then the use click the gaze duration it will allow user to cho
4. ion In the AppBlaster the period of time required to gaze the corner continuously for triggering action can be configured For longer such duration there will be less false trigger but it will also increase the difficulty and time for performing an action Mn AUN e To change such duration user can go to the settings screen Ry Be it BA SARA RAL 7 Then user can select the gaze direction the follow screen will be shown 9 Then user can click the time interval to select the time required for gaze on corner fe FB 10 11 6 3 Lock screen 12 Inthe operation screen besides the electric applicances there is another icon for lock screen Copyright CECID Page 13 of 14 LA N Nn E AppBlaster User Guide Version 1 0 11 May 2012 The lock screen can be used to lock the system until the user make correct gaze direction sequence When lock screen icon is selected the following screen is shown AppBlaster In this lock screen in order to unlock user has to gaze right left right right left sequence When the gaze direction can be matched the gaze direction icon will become gray AppBlaster When all the gaze direction is matched the screen will be unlocked Copyright CECID Page 14 of 14
5. ndroid 2 2 or above In order to have a better gaze direction recognition result android tablet around 10 inches is preferred 4 2 Installation AppBlaster is an android application Therefore the installation is easy just like other android application 4 3 Setup 4 3 1 Bluetooth Connection setup with Control Gateway The AppBlaster is connected to Control Gateway through Bluetooth In order to make the connection it is necessary for the Android device to paired up and connect to the Control Gateway which can be done in the setup on the Android device 4 3 2 Setup electric devices In this section it will describe how to setup what signal should be used to control electric appliances When we start the AppBlaster it will show the following screen Then user can click the setup menu button the menu item will show Copyright CECID Page 5 of 14 ON AppBlaster User Guide Version 1 0 11 May 2012 BLAM SRO MALS Then user can click the electric devices it will show the following screen DA RF aR The user can click the add electric devices button it will show the screen to ask user for the name of the electric device Copyright CECID Page 6 of 14 2 Nn BRB U AppBlaster User Guide Version 1 0 11 May 2012 The type means the type of the electric appliance The signal means the signal that send to Control Gateway After setting the type and the signal user can click ok to
6. o control the electric appliances 6 1 Move and selection When the training is done the following screen is shown In the upper part of the screen there is a camera view that contains the ghost image for the image capture during the training The user should try to match the head with the ghost image for better gaze direction detection In the upper left and right there is a LED indicate that user s gaze direction When the user tries to gaze the left upper corner of the screen the LED in the upper left corner should be on It is same for the upper right LED case In the lower part of the screen it shows the current selected electric appliance Note that for each electric appliance there are two icons the coloured icon to turning on the electric appliance and the black and white icon for turning off the electric appliance In order to trigger the current selected electric appliance the user has to gaze the upper right corner continuously for a period of time For change the selection user has to gaze the left right corner for a period of time Note that such period of time can be configured on settings User can also use finger touch to change the device by dragging from left to right or right to left on the lower part of the screen and trigger the current selected item by long pressed the selected item Copyright CECID Page 12 of 14 AppBlaster User Guide Version 1 0 11 May 2012 6 2 Set the gaze durat
7. ose the level for gaze duration Copyright CECID Page 9 of 14 COO Gi JC Lin kuch bech 12 13 14 AppBlaster User Guide Version 1 0 11 May 2012 After user selection user may then exit the setting screen 5 2 Training When the AppBlaster starts it will on the following screen In the screen there is a camera view In the camera view there is a white rectangle User should try to move the head so that his her eyes are within the center of the white rectangle If the system can detect the eyes green rectangle will be shown User should try to configure the camera zoom ratio so that the green rectangle can enclose the whole eye After head position is okay user can click the start button to start the training When the user click the start button the following screen is shown In the upper left corner it will have a counter indicate that the training will start The user should try to gaze the green point on the upper corner Note that the green point will change Copyright CECID Page 10 of 14 AppBlaster User Guide Version 1 0 11 May 2012 1 the position from upper left corner to upper right corner after certain gaze duration After the 2 training complete message will shown that training is completed Copyright CECID Page 11 of 14 O VM GJ Ch MN kuch AppBlaster User Guide Version 1 0 11 May 2012 6 Operation Phase In this section we will describe how to use the AppBlaster t
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