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KMID : 0603720060120020153
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Journal of Korean Society of Medical Informatics
2006 Volume.12 No. 2 p.153 ~ p.160
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A PDA-Based Wireless ECG Monitoring System for u-Healthcare
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홍주현:Hong Joo-Hyun
김남진:Kim Nam-Jin/차은종:Cha Eun-Jong/이태수:Lee Tae-Soo
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Abstract
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OBJECTIVE: The purpose of this study is to design a portable ECG monitoring system, which integrates up-to-date PDA and RF communication technology, and to acquire the subject’s biomedical signal without any constraint.
METHODS: The developed system is composed of a transmitter and a receiver. The transmitter has a MCU (microcontroller), three-axial acceleration sensor, ECG amplifier and Zigbee communication controller. It has two types of transmission mode, which are total signal transmission mode and HR (heart rate)/SC (step count) transmission mode. The receiver has a MCU, Serial Communication IC, and Zigbee communication controller. It forwards the received data to PDA, where the data can be stored and displayed.
RESULTS: In total signal transmission mode, it can send data 60 packets per second whose transmission speed corresponds to 300 ECG samples and 60 acceleration samples. In HR/SC transmission mode, it can calculate heart rate from ECG data with 216 samples per second and step count from acceleration data and send a packet every cardiac cycle.
CONCLUSION: Using this device, a new method of remote monitoring both vital sign and activity is realized. A PDA-based wireless ECG system enables patients to be monitored during their daily living, without any constraints. Also, this method will reduce medical costs in the aged society.
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KEYWORD
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ECG, Ubiquitous Healthcare, Zigbee, PDA (Personal Digital Assistant)
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