基于映射-归约分布式架构的城市轨道交通信号系统检测平台

Urban Rail Transit Signaling System Testing Platform Based on Map-Reduce Distributed Architecture

城市轨道交通信号系统的检测工作多由设备厂商自行实施并进行评价,部分测试过程相对封闭,如何从第三方角度对信号系统进行检测并得到一个可信的结论,成为急需解决的问题。采用分布式文件系统,并结合映射-归约架构,可很好地解决信号系统的检测问题。基于映射-归约分布式架构的信号系统检测通过并行运算、负载均衡、就近冗余储存等技术,可提升运算资源效率,平台所采用的容错机制也可提升系统鲁棒性。该平台的优势还在于其结论具有可信度,并由此提出了采用映射-归约分布式架构的实施方法。

Most of the urban rail transit signaling system tests are implemented and evaluated by the equipment manufacturers themselves,and part of the testing process are relatively closed.Therefore,how to test the signal system from the third party so as to obtain a credible conclusion is an urgent problem to be solved.By using distributed file system combined with the map-reduce architecture,the problem of testing signaling system is effectively solved.Then,through parallel computing,load balancing,nearby redundant storage and other technologies,the computing resources efficiency of the signaling system test based on map-reduce distributed architecture is improved,and the fault-tolerant mechanism is used to improve the robustness of the system.One of the platform advantages is the credibility of its conclusions,on this basis,an implementation method that adopts the map-reduce distributed architecture is proposed.