A kind of Integrated High-speed Data Interaction Network based on SRIO Used in Constellation Satellites System

The satellite constellation was one of the hottest research directions in the field of satellite remote sensing for the characteristics of low transmission delay, small propagation loss and wide coverage area. How to build interaction networks supporting communication between the electronic systems in the satellite and different satellites was the basis for flexible networking and on orbit cooperative processing in the constellation. In order to meet the needs of information interaction in the constellation, a novel kind of integrated high-speed data interaction network based on SRIO(Serial Rapid IO) was proposed, which can combine the intra satellite exchanging network with the inter satellite routing network. The integrated interaction network formed an interaction channel supporting the constellation satellite information sharing, and solved the problems of incompatibility between the satellite networks and complex bus types. The transmission bandwidth and link data transmission rate can be configured as required. The total bandwidth can reach 100Gbps, which was more than 1 order of magnitude higher than the current on-board bus network. Moreover, the network transmission route can be dynamically reconstructed, which solved the problems of low transmission speed, fixed and single connection relationship, poor expansibility and flexibility of the current on-board bus network.