Research On Application Of Agent In House-Keeping System For Small Satellite

With the development of technology in small satellite and the further research of small satellite's formation orbit,the research on reliability and intelligent of the satellite has been a forland task. The emerging Agent technology is an ideal resolution because of its autonomy, sociality, reactivity, activity, etc.. House-keeping system is data and decision center of the satellite, so this paper works on the design, application research of Agent technology used in House-keeping system for small satellite, based on the small satellite which is being developed in NUAA.First, typical application of Agent technology in satellite field is summarized, and ObjectAgent which is the Agent development platform in space field developed by American PSS is analyzed. On this basis, directed to the NUAA's small satellite, distributing House-keeping system model based on Agent technology is constructed, and ObjectAgent software system is used to program, which bring the reliable structure and activity of House-keeping system for small satellite. The multi-computer internet imitation experiment is successfully completed.Then, a House-keeping system Agent task scheduling algorithm based on genetic algorithm and Agent consulting mechanism is proposed which improves task scheduling autonomy. And the Agent task scheduling imitation experiment is carried out, taking multi-Agent House-keeping system for an example.Furthermore, optimum design of BSP and kernel cut-off of VxWorks facing Agent survive is carried on, which is combined with PC/104 imitator hardware and VxWorks House-keeping operating system used in NUAA's small satellite. Besides, ObjectAgent software system is transplanted to VxWorks operating system, and communication experiment of Agent is successfully completed.Finally, a conclusion and an expectation are made, and some suggestions are put forward in order to help subsequent researcher.