基于天通、北斗双模卫星通信的应急车载终端设计与实现

Design and implementation of emergency vehicle terminal based on Tiantong and Beidou dual-mode satellite communication

我国幅员辽阔,灾害事故频发,对应急通讯技术有很高的要求。本文研制基于天通、北斗卫星通信的应急车载终端,提出北斗单次通信电文长度利用率可达到91.72%的多点传输协议,同时是详细描述了硬件、软件设计思路,摆脱了目前车载终端通讯过度依赖地面无线网络的痛点。最后,该终端投入实际使用,取得良好的社会效益。

my country has a vast territory,frequent disasters and accidents,and has high requirements for emergency communication technology.This article develops an emergency vehicle-mounted terminal based on Tiantong and Beidou satellite communications,and proposes a multipoint transmission protocol that can reach 91.72%of the length of Beidou’s single communication message.At the same time,it describes the hardware and software design ideas in detail,and gets rid of the current vehicle-mounted terminal communication.Pain points of over-reliance on terrestrial wireless networks.Finally,the terminal was put into actual use and achieved good social benefits.