地铁线网指挥中心平台以综合监视系统为核心，以数据应用系统、运营执行系统为协同管理。由于关联的设备系统多、业务复杂，海量数据交互的实时性、并发性、准确性要求高，线网指挥中心平台的数据通信问题一直是一个难题。为解决该问题，在基于Protocol Buffer通信协议的基础之上，设计和实现了基于gRPC分布式数据通信的地铁线网指挥中心平台系统架构。远程过程调用gRPC机制是分布式系统和计算机网络中通信的新型机制，在网络化运营模式下通过采集大量的设备数据、业务系统数据，实现了平台数据的规范化处理和业务系统间的高内聚、松耦合通信，提高了城市轨道交通运营安全保障能力。

The metro network control center is based on the integrated monitoring system as the core,with data application system、operation execution system as collaborative management. Due to the large number of associated equipment systems、complex business,high requirements for real-time、concurrency、accuracy of massive data interaction,the data communication problem of metro network control center has always been a difficult problem. To solve this problem,based on the protocol buffer communication protocol,a metro network control center architecture based on gRPC distributed data communication is designed and implemented.The remote procedure call gRPC mechanism is a new communication mechanism in distributed systems and computer networks,under the network operation mode, by collecting a large number of equipment's data、business system's data,the standardized processing of platform data and high cohesion、loose coupling communication between business systems are realized,and the operation safety guarantee ability of urban rail transit is improved.

中国铁道科学研究院集团有限公司科技研究开发计划项目(2051GCJ201)