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待发段地面逃逸控制组合作为载人航天工程待发段地面逃逸控制系统的核心组成部分,主要负责接收逃逸控制计算机和控制面板的指令,进行逻辑条件判断后与逃逸系统硬件设备完成有线逃逸控制指令的通信。针对酒泉卫星发射场现有控制组合设备设计较早、使用年限较长等问题,提出一种基于双冗余架构的高可靠待发段地面逃逸控制组合设计方案,采用主从冗余热备份设计实现系统级冗余架构,同时采用基于改进型Mod Bus/TCP协议的冗余网络通信技术、基于测试数据的故障自检测技术以及高可靠逻辑控制软件设计技术,极大提高控制组合的可靠性,缩短故障处理时间,降低待发段风险,满足载人航天飞行任务对待发段逃逸救生的需求,具有较强的工程意义和实用价值。
As the core component of the ground escape control system of the manned section, the control system of the ground escape is mainly responsible for receiving commands from the flight control computer and control panel, completing the cable escape control with the escape system hardware after determining the logical conditions Command communication. In view of the problems such as the earlier design and the longer service life of the combined control equipment in the Jiuquan Satellite Launch Site, this paper proposes a combined design scheme of the ground runaway control system based on dual redundancy architecture. The master-slave redundant hot backup design At the same time, the redundant network communication technology based on modified Mod Bus / TCP protocol, the fault self-test technology based on test data and the design technology of highly reliable logic control software are adopted to greatly improve the reliability of the control combination, Shorten the time to deal with the fault, reduce the risk to be sent to meet the needs of the manned space mission to escape the life of the fat section, with strong engineering significance and practical value.