城市轨道交通乘客信息系统消息调度的实现

摘要

本文基于乘客信息系统(PIS)对北京地铁关于消息调度的有关规定进行了阐述,并结合实际应用介绍消息调度流程、消息调度技术及具体实施方案.通过最早截止期优先(EDF)算法实现对消息处理和调度.%Message dispatching was a very important part of Passenger Information System(PIS). The article explained the relevant provisions of the message dispatching based on PIS of Beijing Urban Transit, introduced message dispatching process, the technology of message dispatching and the implementation by combining with the practical application. The message handling and dispatching could be implemented through the Earliest Deadline First (EDF) Algorithm.