星地一体融合应急通信保障系统设计OA

Taking the advantages of Tiantong Satellite and Bei-dou System,and fully combining the characteristics of ground digital intercom system and mobile communication system,a satellite-earth integration and interconnection emergency communication guarantee system has been designed.The system consists of various communication terminals,ground and satellite communication networks,and central application systems.The satellite-earth communication terminal builds a regional intercom system for the central station to achieve communication between terminals within the region.It transmits regional terminal services remotely by satellite channels applied by satellite-earth communication terminal,and completes information interaction between cross regional terminals and between terminals and central application systems.The central application system includes a business access layer and an application layer,and it complete terminal data access and user application within each communication network,provides communication services such as audio and video,location,and short message,and achieves emergency communication support.