Abstract: This paper introduces the developed faulty record data transmission system, which is used in power system. The communication technology of this system is based on serial communication. This system implements an accurate and effective serial communication message. And it also has the functions of broken-point continuingly-transferring and sharing the serial port resource with other processes. The design scheme and the key technology are proposed at length.

Key words: Serial communication; Faulty record; Message; Broken-point continuingly transferring

摘要： 介绍了所开发的一种应用于电力系统的故障录波数据传输系统。该系统的通信技术基于串口通信，实现了一种准确有效的串口通信报文，且具有断点续传和与其它进程共享串口资源的功能。介绍了系统的设计方案和所用到的关键技术。

关键词: 串口通信；故障录波；报文；断点续传