一种高可靠的运载火箭测发控设备  

A Highly Reliable Launch Vehicle Test and Control Equipment

作　　者：王之平 汪文明 王淑炜 WANG Zhiping;WANG Wenming;WANG Shuwei(Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China)

机构地区：[1]北京宇航系统工程研究所,北京100076

出　　处：《计算机测量与控制》2023年第6期130-136,共7页Computer Measurement &Control

摘　　要：为满足运载火箭对测发控设备的通用化及高可靠的要求,对运载火箭测发控设备的设计方案进行了研究;整体设备采用通用机箱加标准化模块的设计思路,背板采用自定义的机内接口,基于业务信息和管理信息异构的设计思想,通过背板上冗余的CAN总线及RS485总线实现业务和管理信息的分离,以及管理总线对业务总线的异构备份,机箱及标准化模块通过读取背板信息确认当前插槽及模块类型,实现模块的灵活布置,采用模块热备和总线热备两级热备方案,以及自定义的内部通信协议,经过测试实现了测发控设备在各类故障模式下的正常工作,冗余切换延时小于500 ms,该设备已于某新型低温液体运载火箭上成功应用,经过实际应用满足运载火箭测发控系统的要求,后续可应用于其他运载火箭的相关领域。In order to meet the requirements of universalization and high reliability of launch vehicle test and control equipment,the design scheme of the launch vehicle test and control equipment is studied.The overall equipment adopts the design idea of general chassis and standardized modules,and the backplane adopts the customized internal interface.Based on the design idea of heterogeneous business information and management information,the separation of business and management information is realized through the redundant CAN bus and RS485 bus on the backplane,and the heterogeneous backup of the management bus to the business bus.The current slot and module type of chassis and standardized modules are confirmed by reading the backplane information,the flexible arrangement of the modules is realized.Two-stage hot standby scheme of the module hot standby and bus hot standby is adopted,as well as the self-defined internal communication protocol.After testing,the normal operation of the launch vehicle test and control equipment is realized under various fault modes,and the redundancy switching delay is less than 500 ms.The equipment has been successfully applied on a new type of low temperature liquid launch vehicle,and the actual application meets the requirements of the launch vehicle test and control system,it can be applied to other launch vehicle related fields in the future.

关 键 词：运载火箭 测发控设备 高可靠 总线 冗余 

分 类 号：TP202[自动化与计算机技术—检测技术与自动化装置]