中国空间科学技术

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小卫星星务管理技术

李孝同   

  1. 北京空间飞行器总体设计部!北京100086
  • 发布日期:2001-02-25

Satellite Keeping Technology of Small Satellite

Li Xiaotong (Beijing Institute of Spacecraft System Engineering,Beijing 100086)   

  • Published:2001-02-25

摘要： 阐述了第三代星上测、控、管系统 (星务系统 )的基本设计思想 ,它是基于现场控制、内嵌式微控制器和星上现场网络等概念开发的一项卫星新技术。该项技术实现传统卫星上的系统功能集成 ,具有全数字化、全网络连接、全分散式和在线组态的特点。该文给出星务系统与过去星上测控系统相比的最大两个概念跳跃 :内嵌式 ,整星全网络化。星务系统构成了一种星载柔性服务系统 ,用现场网络来协调、控制星上智能设备的相互联系 ,完成包括信息流、动作流、能量流的动态作业 ,可以在线下载任务和在线整定参数 ,改变传统卫星测控系统接口层的封闭性和专用性 ,实现星上设备“即连即用”。这就是构成星上集成电子学系统一体化的关键 ,构成“平台化”的核心。按星务系统技术设计 ,可以提高整星级可靠性和运行功能有效性 ,并可以加快研制进度和降低开发成本。该文还指出了星务系统和数管系统的不同 ,CAN总线和 15 5 3B的不同

关键词: 小型卫星, 星务管理技术, 卫星系统工程

Abstract: The basic design idea of the third-generation onboard measurement,control,management system (Satellite Keeping Operator,SKO) is deseribed.It is a satellite design technology developed based on the concepts of field control,embedded micro-controller and onboard network.Its characteristics include full digital,full network interface,full distributed structure and online-modification.Two concept-changes are put forward embedded and network.SKO is a flexible onboard service system,it coordinates and controls the interaction between onboard devices and equipment with field network,and accomplishes the dynamic operation of the steam of information and energy.Downloading tasks and modifying parameters on-line is convenient.The changes the occlusion and customization of the traditional satellite measure and control system,makes the onboard devices and equipment have the ability of“Plug and Play”.SKO is the crucial technology to construct the onboard-integrated electronics system and the kernel to create the common platform.Using SKO technology,the reliability and validity of the whole satellite are improved,and developing period and cost are reduced.Differences between SKO and OBDH,CAN and 1553B are given.