中文摘要：

提出一种嵌入式远程心电监护系统的设计方法。该系统包括前端和后端两个模块，前端通过穿戴式心电采集设备从人体获取心电信号，经A／D转换后由nRFg05射频芯片无线传输到后端；后端利用GPRS将来自前端的数据远程传输到监护中心，并接收来自中心的反馈信息。为了保证数据俜输的安全性，提高数据传输的效率，引入了AES加密和LZ77压缩算法。实验结果表明，该系统能够实现心电信号稳定、准确、实时的传输。

英文摘要：

A design method of the embedded telemonitor system for ECG is proposed. The system comprises a front-end module and a back end module. The front-end module picks up ECG-signal by an acquisition circuit, and then transmits it to the back-end module wirelessly via a nRF905 chip after A/D convertlon. The back end module teletransmits the ECG-signal gained from the front-end module to the monitor center by GPRS and receives the feedback information from the monitor center. The AES encryption algorithm and LZ77 compression algorithm are introduced to insure the security and enhance the efficiency of transmission respectively. The result shows that the system can successfully implement the secure, exact and realtime transmission.