The Research Of Interconnection Terminal Technology Based On Space-Platform

In order to adapt to the rapid development of space information network,the common requirements of networking,task coordination and comprehensive processing are put forward for the satellite platform.In turn,It is necessary to solve the interface differences of various satellite platforms,virtual resources after access to the network,large space and time span,self-organizing network and network services and other problems.The space-based Internet terminal can provide the satellite with the network information service environment base,promote the integrated development of the "three heavenly networks" and achieve business services.The platform interconnection terminal consists of computing,storage,processing,network service and other modules the interface bus is connected to each other to form a unified external service capability and a unified interface capability.On the interface side,it can face the mainstream satellite bus and provide a variety of adaptive internal interface;In terms of computation,according to the satellite itself processing power,provide high school low-grade calculation module;In terms of storage,large and small storage modules can be provided according to the requirements of satellite missions;In terms of processing,suitable processors can be provided according to load capacity requirements;In terms of network services,corresponding network service processing modules can be provided according to the requirements of satellite missions;The transformation and upgrading of functions can be realized through the dynamic home application of plug-in,the scheduling and optimization of network resources can be realized through the virtual batch technology of resources.This thesis makes an in-depth analysis of the background of the interconnection terminal demand of tianji platform,It research that technical features and status of satellite marshalling,sky-based networking and microsatellite projects;It research that choice of technology such as the satellite interconnection topology,access protocol,communication system and the feature of hardware and hardware demand of interconnect terminal.Then carry out the overall design Internet terminals,studied its hardware and software architecture,network transmission scheme,neutral access solutions,pooling resources,information virtualization,distributed lip synchronization technology exchange design,network design,network management service design,low power consumption miniaturization platform design,etc.At last,a semi-physical simulation and verification system with the tianji interconnection terminal as the core was built,The physical composition and architecture of the system are introduced,Put forward a unified space-based network protocol model library,carry out the typical routing protocol performance validation,TCP and SCPS-TP throughput performance comparison,as well as the spatial distributed computing performance verification,proved the effectiveness of virtual technology of network interconnection and resource.