ECG Wireless Transmission System Based on Embedded System

An electrocardiogram(ECG) wireless transmission system based on embedded system, Intel SA-1110, is developed for long-distance first aid or home healthcare. This system is composed of ECG signal collection model, data storage and display model, general packet radio service(GPRS) model and embedded microprocessor Intel SA-1110. The collection, filter and A/D transfer of ECG signals are realized by ECG signal collection model. Storage and display of ECG data are achieved by storage and display model. The GPRS model wireless transfers the ECG data to remote ECG workshop or server in hospital and Intel SA-1110 controls the whole system and communication between each model. Its software includes patient management program based on WinCE and server program based on Windows running on remote ECG server. The data transfer experiments are made at five periods of time in one day. The error code rate is zero when collected ECG is compared with that received by remote ECG server and the transfer speed is from 12.5 kb/s to 35 kb/s.