煤炭铁路专线调度指挥系统的研制

煤炭铁路指挥系统是利用现场总线和数据通信技术,把列车 运营和车站设备运行状况实时传输到总调度室,从而达到车辆行驶合理调配和故障的及时处理。通过对煤炭铁路专线特点的分析,提出了以Intel 89C51单片机为核心,普通模拟电话网为通信介质,利用调频技术、差错控制和现场总线技术来构建低成本铁路指挥系统。给出了系统模型和软件实现方法,并提出利用数据库技术快速显示铁路信号图形。该系统于2001年4月在郑州新密煤炭铁路专线投入正式使用,1a多来,运行效果良好,维护成本低。

Manufacture on the commanding system of coal special railway

The commanding system of coal special railway utilizing the spot bus and the data communication technology is a assigning and monitoring system. It forms the whole operations status through transmitting the rail signal to the whole control room in order to properly arrange the trains traveling and timely dispose of the rails breakdown. Through analyzing the characters of the coal special railway, a cheap system is given, which centers Intel 89C51 microcomputer and utilizes the frequency modulation, the error controlling and the spot bus technologies. The system model and software structure is introduced. At the same time, a new rail signal graph showing means used of the database technology is put forward. It has been applied to the special railway of the Coal Bureau in Xinmi City of Zhengzhou for one more year. The result proves that it moves reliably.