Low Cost Wearable Monitoring System

(Advisor Dr.Assim Sagahyroon )

By:Ali Ghazy(@6801) Hazem Rady(@5545)Umair Suleman(@6271)

Introduction:

This project is related to an emerging area of applied research called wearable computers.

This product will monitor the patients condition, and send information wirelessly to the doctor’s cell phone, and at the same time update the hospital database via SMS, in case of an emergency, or periodically.

Advantages:

patients can benefit from continuous monitoring as a part of a diagnostic procedure, optimal maintenance of a chronic condition or during supervised recovery from an acute event or surgical procedure.

Continuous monitoring with early detection likely has the potential to provide patients with an increased level of confidence

Ambulatory monitoring will allow patients to engage in normal activities of daily life, rather than staying at home or close to specialized medical services.

Objective:

Design, implement, and test a wearable healthcare monitoring system.

Design must be light, wearable, and consumes power efficiently, and most importantly, low cost.

Examples

Examples

Examples

System Block Diagram

Major components:

Sensors (Heart, Temp., and Pressure).

Micro-controllers.

Power.

Bluetooth.

Cell phone.

Sensors-Temperature

These sensors are required to measure the body temperature of the patient. A high resolution is required as accurate results are preferred. The location of these sensors will most probably be under the arm pits, as we feel that is the most accurate place to measure the temperature.

Sensors-Heart:

This sensor is a belt that is strapped around the chest of the patient, and monitors his heart beat. Then through a transmitter, it transmits the information to the microcontroller.

Sensors-Blood Pressure

This will be an arm cuff monitor, that will periodically measure the pressure of the patient, and send this information to the micro-controller.

Microcontroller:

Responsible for taking the inputs from the sensors, and make decisions regarding whether the GSM modem will need to send an SMS message to the doctor/nurse, or not.

An important issue with the microcontroller, is the size and power consumption. It should be small, light so that it is not a burden on the wearer, and it should be able to be interfaced with the different sensors, and at the same time consume low power.

Microcontroller-Decision making:

Programming using hard limits, i.e. we place fixed values that we consider critical values into the microcontroller, and compare these values with the inputs we are receiving. If the microcontroller feels that the situation is dangerous, it will send an SMS to the doctor’s cell phone through the GSM modem.

Microcontroller operation flowchart

Microcontroller (Pressure sensor)

Microcontroller (Heart beat sensor)

Microcontroller (Temperature sensor)

Power

Achieving this system leads for patient’s freedom andonline 24/7 monitoring of his or her health. So our main goal is to keep our system as alive aspossible so that we can keep the patient in care. Thisrelies on the power supply mechanism. It should be efficient enough for overcoming the barriers and to give confidence in its patients anddoctors.

Power

Recharged By

Bluetooth

Mobility

Flexible (Like headsets)

Cost-Cheap

Scalable

Cell phone

Why use Cell phones over GSM/GPRS modems?

Price-CheaperSize-SmallerFuture Enhancements – GPS

upgradeability

Cost Analysis

Microcontroller Mini DRAGON 356 (Trial) /

Dragonfly 135(Final)

Bluetooth dongle 92

Power (Battery) 268

Sensors 459

Cell Phone 1000-2000

Total: 1954-2954

References

www.spectrum.ieee.org /IEEE Spectrum, December 2004

http://www.nokia.com /Cell phone http://www.usbgear.com /Bluetooth Dongle http://wiki.media-culture.org.au /Bluetooth Advantages http://www.eurobatteries.com /Batteries http://www.maxim-ic.com /Temperature Sensor http://www.adirondackrowing.com /Heart Sensor http://www.comforthouse.com / Pressure Sensor http://www.evbplus.com/minidragonplus.html

/Microcontroller

THANK YOU

Any Questions?