Research on Key Technologies of HSR Intelligent Dispatching based on Cloud-Edge Collaboration

In order to solve the problems of resource pressure, bandwidth load, multi-source heterogeneous data processing and security privacy caused by big data centralization in intelligent railway dispatching under emergencies, a hierarchical multi-level intelligent dispatching architecture of hybrid central cloud and edge cloud including network edge layer, central scheduling layer and station control layer is designed based on the idea of cloud edge collaboration. 1) The flow direction of network edge data is studied; 2)The operation flow of the edge node and the station control unit is designed with the help of service registration and message subscription; 3)The security of data and services is guaranteed by the mechanisms of edge node capability authentication, message time validity checking, mobile message window and node last will. Relying on the full play of resource efficiency of massive edge nodes close to data and more scene features and high-density data, the scheme can effectively improve the security card control performance of high-speed railway intelligent dispatching in emergencies.