通信时间严格受限的无线通信系统的设计与实现

Design and Implementation of a Kind of Wireless Communication System with Limited Duration

机车回段后必须把机车在线路上运行时发生过的一些异常状况信息回馈到地面控制室;机车离开机务段时,地面控制室将一些相关信息发送到机车,及时通知乘务员。文章分析了机车和地面控制室通信时存在的技术难题,借鉴了CSMA协议和ARQ技术,提出了一种通信时间严格受限的无线通信系统协议算法及其软、硬件实现方法。实际应用情况表明系统通信协议设计合理、硬件抗干扰能力强、数据传输可靠。

After a locomotive returns to the station, it must transfer the exceptional information which occurred during locomotive running on the railway to the control house. The control house also transfers some information to the driver before the locomotive out the station. The technical problem of a locomotive communication with the control house is analyzed, and a kind of arithmetic based on CSMA protocol and ARQ technique is mentioned, the realization of its hardware and software is introduced too. The application of the system indicates that the system communication protocol is reasonable, the hardware has high ability of anti-jamming and the data transport is reliable.