信号控制机的故障预防、检测及排除方法

Failure Prevention,Detection and Resolute Method in Transport Signal Control Machine

交通管理信息系统为城市的安全、畅通提供了有力的保障。本文通过对现有交通管理信息系统的设计分析,信号控制机是系统数据收集中心,是系统运行的基础。由此,提出信号控制机的故障预防、故障的检测、故障分析和故障的排除方法,并通过DFD图描述它们之间的关系。实践证明,本文提出的方法在实际的操作过程中具有可行性。

The transportation management information system is the basic ensurement for traffic safety. Through analyzing the design of today＇s transportation management information system, the signal control machine is very important for safe running. Failure pre- vention, failure detection and failure analyses methods at signal control machine are presented in this paper, and described their relation with DFD. Those methods presented in the paper have been successfully applied to practical projects.