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HUMAN HEALTH ALERT SYSTEM
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GROUP ONE GROUP MEMBERS1.ADITHYAN K S2.ABHIJATH B3.AJAY C SHAJI4.AKHIL CHANDRAN 5.AKHIL P SANU
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ABSTRACT ABSTRACT
The Walking Stick with Heart Attack Detection is equipment that is used daily to indicate heart condition, to detect heart attack and to call for
emergency help. It was designed specially to help senior citizens and patients with heart disease
INTRODUCTION • Why did we choose this topic?
• Create an equipment to be used in every day’s life for a medical purpose
• Obtain the basic idea from “Wireless Heart Attack Detector with GPS
• Most heart attack results from coronary artery disease (the restriction of blood flow to the heart) and it causes instant death of person
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YOURVIDEO
HERETEXT
TEXT
RISK
APPLICATION
SPEED
INTERNETDATA
INFORMATION
CONSUME BUSINESS
CAPITAL
RESOURCEVIDEO
MEDIA
ECONOMIC
DIVERSE
YES
NO
TRAININGTOWER
COMMERCIAL
LEAD
FOLLOW
DESIGN
IMPROVEFACT
FICTION
EXPAND
UNITED
ENGAGEWEB
NETWORK
SOCIAL MIRRORBLOG
TEXT
RISK
APPLICATION
SPEED
INTERNETDATA SECRET
CONSUME
BUSINESS
CAPITALRESOURCE
MEDIA
ECONOMIC
DIVERSE
YES
NO
TRAININGTOWER
COMMERCIALLEAD
FOLLOW
DESIGN
IMPROVE
FACT
FICTION
EXPAND
UNITED
ENGAGE
WEB
NETWORKMIRROR BLOG
FICTION
TEXT
INTERNET
DATANO
TELEVISION
TIME
WORLD
CLOCK
DIGITALADVERT
SMART
PHONE
EDUCATION
TALENTPHONE
OBJECTIVESOBJECTIVES • Goals of Design:
-The wireless heart attack detector captures abnormal heart beat signals.-The alert system on the walking stick warns the user to realize his health condition.-GSM Module send alert message and location co-ordinates obtained from GPS module
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OBJECTIVESOBJECTIVES
(continued)
• Benefits:– Electrocardiogram (ECG) signal transmitted
wirelessly from the wrist to the main unit on the stick. This avoids the inconvenience of the attachment of the stick to the wrists.
– Automatic wireless emergency messaging system using GPS and GSM
– Warning mode(using buzzer and red led) giving the users a chance to avoid the fatal moment actively
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ORGINAL DESIGN REVIEW • Obtain ECG waveform from both wrists.
• Convert the analog signal to digital signal
• PIC on the wrist will check the amplitude and transmit “*” if heart condition is normal , “$” if there is no pulse,“#” if amplitude is higher than normal level.
• PIC on the walking stick will alert the person and send alert message to the specified number if “#” and “$” symbol is received .
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BLOCK DIAGRAM
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Transmitter
GSM
Electrodes
PIC1
ECG Unit
Receiver
PIC2
GPS
TRANSMITTER TRANSMITTER SECTION SECTION
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COMPONENTS AND FUNCTIONS ECG Analog Circuitry
– to obtain analog ECG waveform from wrists
1.Instrumentation amplifier (AD620)
– The low current noise of the AD620 allows its use in ECG monitors
2. Low pass filter to remove noise
-Without the filter, no recognizable ECG was obtained during testing
3 Amplifier using LM358
4. Voltage follower using LM358
– impedance matching purposes 11
COMPONENTS AND FUNCTIONSCOMPONENTS AND FUNCTIONS
PIC16F87X as A/D Converter and for decision making
--A/D Conversion
Analog ECG signal will be digitized into 10 bits (0 – 1023).
Bluetooth Transmitter
--Serial communications @ 9600-115200bps
No Setup/Initial command required 12
FLOW CHART
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Start
If amp b/w 600 and 520
Transmit “*”no
If amp =466Transmit “$”
Transmit “#”
yes
no
yes
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SCHEMATICS
RECEIVER SECTIONRECEIVER SECTION
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THE FOLLOWING COMPONENTS WILL BE INSTALLED ON THE WALKING STICK.
1.Bluetooth Receiver2.PIC-23.GSM4. GPS5.MUX(74HC4052)6.MAX2337.Buzzer 8.LED
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COMPONENTS AND FUNCTIONS
▪ Bluetooth Receiver
1. The receiver will auto-connect with transmitter when switch on
2. The receiver will receive conditions from transmitted from PIC-1
3. The receiver will then feed the symbols received to PIC-2 .
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COMPONENTS AND FUNCTIONSPIC16F87X(2)
1. To alert the person using led and buzzer
2.To receive location coordinates from GPS module
3.To send alert message to specified number using GSM module
MAX232
1.To make connection between pic and GSM module through RS232
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COMPONENTS AND FUNCTIONS
GSM1.To Send MessageGPS 1.To take coordinates2. Working based on AT commands3.It always gives current coordinates to pic BUZZER 1.To alert the person(sound) LED1.To give alert to person -green led corresponding to normal condition -red led corresponding to severe condition
FLOW CHART
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start Initializing USART
Receive data from
blue-tooth
module
Turn on green led
If received symbol is “*”
yes
no
If received symbol is “#”/”$”
SCHEMATICS
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FUNCTIONAL TESTING• A/D Testing by inputting a known voltage level
and checking the corresponding digital value.
• 0.1V - 20
• 1.0V – 200
• 2.0V – 400
• 2.5V – 500
• 5.0V- 1023
• 10 bits can only go up to 1023
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FUNCTIONAL TESTING Heart Attack Algorithm Testing
- One of the ECG samples shown was stored and was changed in terms of amplitude
- PIC16F87X (1) is modified to run with this modified data.
PIC16F87X(1) on the wrist will check the amplitude and transmit “*” if heart condition is normal , “$” if there is no pulse,“#” if amplitude is higher than normal level.
PIC16F87X(2) on the walking stick will alert the person and send alert message to the specified number if “#” and “$” symbol is received
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FUNCTIONAL TESTING• If pic-2 receives “$” or “#” then heart attack is
detected and the person is alerted(using led and buzz at the same time an alert message send to the specified number
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APPLICATION • Help senior citizens who have health hazardous
moment most often• Use a walking stick as the medium asking for
medical help as well as the main unit of detection
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RECOMMENDATIONS• Better biosensors that reduce noise when hands are moving.
• Better circuit design to reduce power consumption.
• Lighter material for the wrist circuitry and the main unit on the stick.
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REFERANCEREFERANCESS
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