轨道交通综合监控系统接口标准化

Discussion on Interface Standardization of Urban Rail Transit ISCS

针对目前城市轨道交通综合监控系统与子系统间通信接口方面存在的接口方式多样、标准化程度低、开发调试任务重等问题,分析接口工作过程以及接口规范的重要性,提出通信接口规范标准化理念和必要性。根据子系统通信数据流的特点将接口数据类型分为基于点和基于过程的数据,并对各种类型子系统接口进行归类描述。结合目前已经运行的3种典型的综合监控和CCTV子系统通信接口案例进行对比分析,结果表明,XML语言协议因具备自描述性、内容和形式分离、结构清晰和扩展性强等特点,在基于过程数据通信接口中优势明显,建议作为相关子系统接口标准化的首选方案。

For problems such as diversified interface modes,low standardization,heavy development,and debugging tasks in the interface between urban rail transit ISCS and subsystems,the working process of the interface and the importance of the interface specification were analyzed.Proposals for the interface specification standardization concept and necessity are discussed.According to the characteristics of the interface data flow,the interface data types were divided into point-based and process-based data,and the types of each subsystem interface are classified and described.Finally,three typical running ISCS and CCTV subsystem interface cases were compared and analyzed.It was concluded that because of its self-description, separation of content and form,clear structure,and expansibility,the XML-based protocol has obvious advantages in the process-based data interface and is proposed as the preferred solution for the standardization of related subsystem interfaces.