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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