Telemedicine: A Mote-based Data Acquisition System for Real Time Health Monitoring

P.O. Bobbie, C. Deosthale, and W. Thain (USA)


ECG, Motes-MicaZ Sensor Networks, Telemedicine, Wireless Protocol


The paper is on the design and implementation of a prototyped, integrated portable wireless Electrocardiogram (ECG) system. The goal is to develop an integrated sensor-based, wireless-enabled ECG device using analog/digital signal acquisition circuitry and a TCP-enabled interface to log, analyze and monitor home based heart patients. The prototyped system is intended to provide an alternative to the current limited-in-purpose wired-based ECG devices for monitoring patients. The design of the prototype system leads to flexibility and mobility of the patients. Toward this goal, a prototyped ECG device/board has been constructed using analog electronics for obtaining, amplifying and filtering the captured signals. The device is interfaced with other environmental wireless sensors, which are mounted on MicaZ™’s-RF enabled micro-processor nodes (manufactured by Crossbow Technology Inc.) to provide the wireless platform. Architecturally, an MDA300CA™ sensor node is used for signal acquisition and an MPR2400™ transmits the signals in the unlicensed 2.4GHz ISM band. Analog signals of other environmental sources such as temperature, humidity, and oxygen (oximeteric), coupled with the ECG signal can aid a physician in the monitoring and analyzing the confounding effect on a patient’s heart condition – making the prototype multi-functional and clinically valuable.

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