【作者】 储毅；

【导师】 赵敏；

【作者基本信息】 南京航空航天大学 ， 测试计量技术与仪器， 2006， 硕士

【摘要】 20世纪80年代末期出现的小卫星,应用了当代的高新技术,极大地提高了功能密集度,采用了新的设计概念和科学管理方法,实现了低成本、小重量、功能强、低功耗等特点。为了降低本项目小卫星的功耗,本文在小卫星的星务管理系统中添加电源管理功能,利用星务管理系统进行日常任务调度和管理,合理分配小卫星能源,实现整星的低功耗设计。论文在深入研究了该小卫星的星务系统的软硬件特点及各分系统的工作情况后,通过在星务操作系统VxWorks中添加电源管理机制,重点采用较常用的嵌入式系统的动态电源管理技术,将其应用于小卫星的分系统中,使系统可以在不同工作模式之间合理的切换,实现低功耗设计。本文还针对小卫星分系统当中一些具有周期工作特性的简单功耗状态的器件,设计出了一种能实现周期任务管理功能的动态电源管理技术,并详细论述了该技术基于仿真平台PC/104的软硬件设计方案。最后本文对课题的研究工作进行了总结,并对嵌入式电源管理技术在星务系统上的应用提出了进一步的研究方向。希望本工作对后来者的工作有一定的借鉴作用,预祝本项目取得圆满成功!更多还原

【Abstract】 Micro-satellite, which appeared in later 1980s, employed relatively advanced technology, new designing concept and scientific management at that time, realizing the target of the low cost, small weight, strong capability, and low power consumption. In order to reduce the power consumption of this micro-satellite, this paper increases power management function in the satellite keeping operator, carries on the daily duty dispatch and management using the satellite keeping operator, rationally distributes the energy, thus realizes low power consumption design of the satellite.After the hardware and software characteristic of satellite keeping operator and the working condition of various subsystems are investigated, the power management mechanism is added into operating system VxWorks and the commonly used dynamic power management of embedded system is also implemented in the micro-satellite subsystem, enabling the system to switch functions between the different work modes, in order to realize low power consumption design. This paper also designs one kind of dynamic power management to realize periodic task management function according to some components of subsystems with period operational factor and simple power consumption condition. The software and hardware design scheme of this technology based on the simulation platform PC/104 is elaborately introduced in detail.In the end, summary is proposed and prospect of the future research is discussed. We also propose the further research direction to power management on the satellite keeping operator application. Wishing the result in this paper can benefit the coming investigator and looking forwards to a complete success of this item.更多还原