基于双总线的FY-4卫星测控数管分系统及应用  

Applications of TT&C and Data Management Subsystem Based on Double Bus for FY-4 Satellite

作　　者：范颖婷 朱振华[1] 王震[1] 顾强[1] 王军旗[1] 闫奎[1] 

机构地区：[1]上海卫星工程研究所,上海201109

出　　处：《上海航天》2017年第4期104-117,共14页Aerospace Shanghai

摘　　要：介绍了风云四号(FY-4)卫星测控数管分系统特点及其应用。给出了测控数管分系统的组成和工作流程。采用CCSDS协议分包遥测,提出了虚拟信道遥测包调度策略、遥测包传输灵活配置策略、高精度高频可编程遥测,以及境外遥测全程采集4种分包遥测优化方法,实现了自主动态遥测采集和下传、在轨遥测异常排查、重点遥测波道高精度高频采样、卫星发射至定点过程的遥测盲区消除。分包遥控采用遥控数据优先级选择策略,保证了遥控与程控指令同时输出,实现了卫星发射至定点全过程的程控管理功能。设计了部件级和整星级故障管理策略,对部件级故障具备一定自主管理功能,其检测策略可对部件级故障进行诊断与切换重组,实现了对卫星重要故障状态的监视与应急处置。采用1553B+SpaceWire双总线结构,既满足了高低速数据使用需求,又提高了数据传输接口的通用性,同时对卫星重要参数有备份与恢复功能。FY-4A星表明:其测控数管分系统实现了预期的功能。The characteristics and application of TT＆C and data management subsystem for FY-4 meteorological satellite were introduced in this paper.The composition and operation of the subsystem were presented.The CCSDS packet telemetry was adopted.The four telemetry optimal methods of scheduling policy of virtual channels and telemetry packets,configuration policy for telemetry packet,high precision and high frequency telemetry and the offshore telemetry collection method were put forward,which realized the autonomous dynamic collection and download of telemetry,telemetry abnormity checking on orbit,high precision and high frequency telemetry for key telemetry channel and elimination of telemetry dead space during launching to pointing of the satellite.The priority policy of telecommand data was applied in telemetry,which ensured the telecommand and program control command outputting simultaneously and realized the all program control functions from launching to pointing of the satellite.The management strategies of the component level failures and the whole satellite level failures were designed,which had the capacity to backup and recovery for the key units’ parameters and autonomic diagnosis and restructure for the component level failures,so it realized the monitoring and emergency handling of the key failures of the satellite.The double-bus of 1553 Band SpaceWire were used,which satisfied the requirements of high speed data and low speed data and improved the versatility of the data transmission interface.And it provided functions of the important data backup and recovery of the satellite.The flight results of FY-4 Asatellite showed that it’s TT＆C and data management subsystem complemented the function proposed.

关 键 词：CCSDS协议 分包遥测遥控 调度配置策略 高精高频 境外遥测 遥控优先级 程控 安全管理 

分 类 号：V447[航空宇航科学与技术—飞行器设计]