基于嵌入式系统的心电无线远程传输系统

研制了一套适用于远程急救或家庭远程监护的基于嵌入式处理器Intel SA-1110的心电无线远程传输系统．该系统硬件部分由数据采集模块、数据存储及显示模块、GPRS模块及嵌入式微处理器Intel SA-1110组成．数据采集模块负责心电的采集、滤波及A／D变换；数据存储和显示模块完成心电数据的存储、波形显示；GPRS模块实现心电信号的无线远程传输；Intel SA-1110控制全系统及各模块间的通讯；软件部分包括基于嵌入式操作系统WinCE开发的病人管理程序和基于Windows开发的远端心电服务器软件．在1天内5个不同时段进行数据传输实验，比较采集的心电信号与远程服务器接收的信号，误码率为零，传输速度为12．5～35kb／s．

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.