Research And Implement On The Design Software Of Collecting Processor In ZPW-2000A Microcomputer-Based Monitoring Subsystem

ZPW-2000A type jointless track circuit was treated as a uniform standard in the development of railway as it is the basic and safety equipments on railway transportation. Whether the equipments can operate normally will affect the safety of railway transportation directly. While the original TJWX-2000 microcomputer-based signal monitoring system does not have the monitoring of track circuit, which left the hidden trouble in railway transportation. To solve this problem, the Ministry of Railways requires every manufacturer that produces ZPW-2000A to design a ZPW-2000A microcomputer-based monitoring subsystem, which can fit their equipments. Then can bring the important data of ZPW-2000A type jointless track circuit into the control system.The main topic of this thesis is to design software which could be used in the acquisition processor of ZPW-2000A microcomputer-based monitoring subsystem according to the requisition of Ministry of Railways. The software can coordinate with the ZPW-2000A equipments produced by Gu'an XinTong Railway Equipment Co., LTD.At first, this thesis will introduce the significance and the integral structure of the subsystem designed in this task. Second, it established the timed automata model of the communication process between subsystem and station system according to the communication protocol of them. And then the UPPAAL software is used to analyze, emulate and verify some properties of the model. Finally, design the software which will be used on the acquisition processor in subsystem according to the protocol and the timed automata model, and programmed by Visual C++ to implement the communication functions in the proposal. At the same time, in order to facilitate the fault detection and maintenance of equipments, some commonly used auxiliary functions will be added into the program, which are very useful in finding the fault equipment and failure analysis.The software of collecting processor of subsystem designed in this thesis build a basic framework on the development for the ZPW-2000A microcomputer-based monitoring subsystem. This software has been used in a subordinate station in Shanghai and operating normally.