Wireless brain computer interface for controlling smart home
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Transcript of Wireless brain computer interface for controlling smart home
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1Wireless Brain Computer Interface for Controlling Smart HomePresented by: Rabia Mahmood, Rehan JafferiSupervisor: M.Wasim Munir Co-Supervisor:M.Omair
Department of Biomedical EngineeringSir Syed University of Engineering & Technology, Karachi
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1
What if ?You can control any device only by thinking about it?
But why?
Your relative or dear one is paralyzed for life?2
12-CRS-0106 REVISED 8 FEB 20133Table of contentsBackgroundHow Brain Computer Interface (BCI) worksRecording brain activityMotivationAbstractMethodologyResultsConclusion
12-CRS-0106 REVISED 8 FEB 2013Background4
12-CRS-0106 REVISED 8 FEB 2013How BCI works5
12-CRS-0106 REVISED 8 FEB 2013How BCI works (Cont)6
12-CRS-0106 REVISED 8 FEB 2013How BCI works (Cont)7
12-CRS-0106 REVISED 8 FEB 2013Brain controlled gamingRobotic arm controlBCI Examples8
12-CRS-0106 REVISED 8 FEB 2013Brain controlled wheelchairControlling cursor on screenBCI Examples (Cont)9
12-CRS-0106 REVISED 8 FEB 2013Cumulative activity of neuronsStandard 10-20 SystemElectrodes attached to scalpGel requiredNot portableRecording Brain ActivityConventional EEG10
12-CRS-0106 REVISED 8 FEB 2013Research grade EEG headsets11
12-CRS-0106 REVISED 8 FEB 2013Measures raw brainwavesUses TGAM moduleeSense meters8 hour battery timeWireless bluetooth pairing10 meters range
NeuroSky Mindwave MobilePortable EEG headset12
12-CRS-0106 REVISED 8 FEB 2013Motivation13
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Bedridden patients
Physically handicapped
Elder people who need attendants
12-CRS-0106 REVISED 8 FEB 2013Abstract15
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Wirelesstransmission
+
+
+ etc.EEG Headset with bluetoothControlled devicesSmartphone application for visualizing data
12-CRS-0106 REVISED 8 FEB 2013Methodology17
12-CRS-0106 REVISED 8 FEB 2013Four Steps18
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12-CRS-0106 REVISED 8 FEB 201319The built-in Bluetooth of headset pairs with the 1st HC-05 Bluetooth module of stationary part. 1st StepConnecting headset to stationary part of the system1ST BLUETOOTHMODULEARDUINO UNOEEG HEADSETwirelessattached
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12-CRS-0106 REVISED 8 FEB 2013212nd StepSignal Acquisition
Acquiring EEG signal on stationary part and sending it to mobile part
Programming of Arduino UNO
12-CRS-0106 REVISED 8 FEB 2013222nd Step (Cont)HEADSET Blink 1 time=BP, Blink 2 time=FAN, Blink 3 time=LIGHT, 4 time/no blink=BELTBlink detected(Check if device is initially ON or OFF)If initially OFF, raise attention level between 50 to 60 to turn the device ONIf initially ON, raise attention level between 60 to 70 to turn the device OFFWhen level in range detected, device is ONWhen level in range detected, device is OFFGives 8 seconds to blink
In ArduinoSoftware Architecture
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12-CRS-0106 REVISED 8 FEB 2013243rd StepSignal transmissionReceiving data wirelessly on mobile part and sending to smartphone
Makes system portable and wearable
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12-CRS-0106 REVISED 8 FEB 2013264th StepData MonitoringMonitoring data on smartphoneBluetooth connectivity requiredAndroid application named Smart Home MonitorDesigned to make it user friendly
12-CRS-0106 REVISED 8 FEB 2013Results27
12-CRS-0106 REVISED 8 FEB 201328Designed System
Hardware components of wireless BCI controlled smart home
12-CRS-0106 REVISED 8 FEB 201329Statistical AnalysisYoung males achieved highest attention in least time
Mean attention level and time of each groupAttention level/Time(s)
12-CRS-0106 REVISED 8 FEB 2013Conclusion30
12-CRS-0106 REVISED 8 FEB 2013Control home automation and medical devices by users attention level and eye blinksWhole system is wireless, battery operated and rechargeablePortable within range of 10 metersAllows to monitor useful information on smartphoneCan be used by both healthy and unhealthy persons31Provides independent living and quality of life
12-CRS-0106 REVISED 8 FEB 2013Any Questions & CommentsThank You very much 32
12-CRS-0106 REVISED 8 FEB 2013BrainwavesEEG frequency bands33
Beta:Alert/WorkingAlpha:Relaxed/ReflectingTheta:DrowsyDelta:Sleep/Dreaming
12-CRS-0106 REVISED 8 FEB 2013TGAM Module34
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