基于1553B总线的运载火箭供电测控系统设计

Design of a Power Supply and Monitoring System for Space Launch Vehicle Based on 1553B Bus[JZ)][HS)]

摘要:

新一代运载火箭采用低温动力技术,测量系统获取飞行过程遥测参数的同时,需要完成火箭发射前低温推进剂加注期间压力、温度等关键参数的可靠获取;相比传统火箭,对测量系统在供配电和地面测控的可靠性设计、连续工作时间、测试性、扩展性和箭地接口设计提出了较高要求,对此文中提出了一种基于1553B总线的供电测控系统,介绍了系统的硬件和软件组成、功能和测控信息流向,分析了系统设计的4项关键技术:单机设备智能化设计、箭地接口简化设计、总线通信协议和高可靠PXI冗余备份设计;设计的新型供电测控系统在新一代运载火箭各项大型地面试验中成功实现了工程应用,系统方案设计的正确性得到了充分验证,系统方案在其他项目中得到了推广。

Abstract:

As Cryogenic Power System being used in the design of the new generation launch vehicle, more and higher requirements for reliability、continuous working time、testability、expansibility and interface relationship have been put forward to the design of power supply monitoring subsystem in the Measuring System of new launch vehicle. A new power supply monitoring subsystem design based on 1553B bus is proposed to achieve these requirements. In this article, the overall scheme hardware and software are shown, parts of the key technologies used in the system are discussed:intelligentizing of power equipments, interface design between space launch vehicle and ground-monitoring system, protocol of power supply monitoring subsystem and dual-PXIs redundant warm backup. This new power supply system has been successfully passed all the large-scale test for the new generation launch vehice, and has been promoted in other projects.