强干扰下数据采集系统稳定通讯解决方案

本文介绍了RS-232 串行总线及USB 通用串行总线技术，讨论了其抗干扰性，分析了串口出现误码及USB 接口出现死锁现象的原因，提出了一种强干扰下数据采集系统稳定通讯的解决方案。使用RS-232 传送指令，USB 传送采集数据，当监测到通讯死锁时，通过指令控制USB 接口重新初始化，保证了强干扰下通讯的稳定可靠性。
关键字：通讯；RS-232；USB；稳定性
Abstract: This paper introduces the technology of RS-232 serial bus and the universal serial bus, discusses its anti-jamming, analyzes the reason of serial port producing error code and the USB deadlock phenomenon, proposes a solution of stable communication in data acquisition system under strong interference. Uses the RS-232 sending instruction, the USB sending acquisition data, when the communication deadlocks, initializes USB interface by the instruction, ensures the stability of communication under strong interference.
Key Words: communication; RS-232; USB; stability