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结合天巡一号(NHTX-1)微小卫星的任务特点,介绍了基于VxWorks操作系统的实时多任务星务管理软件的设计步骤,重点描述了模块、任务分解,多任务优先级分配,中断设计,集中式相对程控技术,模式定义与模式切换等研究,并根据卫星在轨工作状态对星务管理软件的运行情况进行分析,结果表明该星务管理软件具有很高的安全可靠性,使卫星完成了预定任务。
Combined with the mission features of NHTX-1 micro-satellite, this paper introduces the design steps of real-time multi-task satellite management software based on VxWorks operating system, and focuses on the module, task decomposition, priority assignment of multiple tasks, interrupt design , Centralized relative program-controlled technology, mode definition and mode switching, etc. The operation of satellite management software is analyzed according to the working status of the satellite in orbit. The results show that the satellite management software has high security and reliability, Completed the scheduled task.