摘要
介绍列控车载系统的实时Profibus总线系统,结合Subset-056/057标准,对该总线系统的数据处理流程进行详细描述,指出其与标准Profibus数据处理流程的差异。结合这种差异性,对列控车载系统Profibus多主站系统的实时性进行详细分析,定量给出关键参数TTR的选取方法,并通过实例进一步描述该选取方法。列控车载设备在实验室的长时间稳定运行证明该参数选取方法的正确性。
The paper introduces a real-time Profibus system of the train control system, describes the data processing fl ow of the Profi bus system combining with subset056/057 standard, and points out the differences in data processing flow between the Profibus system with the subset056/057 standard. For these differences, the paper presents a detailed analysis of the multi-master on-board train control system with selection method of key parameter TTR, and gives further description of the selection method through examples. The correctness of the parameter selection method is proved by long and stable operation of the onboard train control equipment in lab.
出处
《铁路通信信号工程技术》
2014年第5期4-7,共4页
Railway Signalling & Communication Engineering
