文档介绍：Research ofTask Scheduling Method inDistributed Systems puter System Structure StudentSignature:上j以j3 f肌 Supe酏orsignature:7吖堋 Abstract With therapiddevelopment ofspace industry andtheincreasing number of spacecraft,themonitoring andscheduling ofon—orbitdiagnosissystem forspacecraft hasbeen difficult toadapt tomulti-spacecraft faultdiagnosis the one hand, faultdiagnosissystem pleted by distributed system which posed by multiple servers and thissystem plex,SO thefatalpoint ishow to ensure that servers Can workefficiently andcooperatively toachieve theotherhand,the data processed byspacecraft islarger and thesystem wedesign is amulti—process distributedsystem, SOhow to ensure thatvariousprocesses Can work efficiently andcooperatively incircumstance ofoptimalefficiency,making system resources been allocated better,is ing anurgent problem ofdiagnosissystem forspacecraft. For theexistence of tllesetwo issues,it isnecessary toanalysis and research task scheduling of on—orbitdiagnosis system important research content and innovationsinthe articleare asfollows: First,thetwo traditional spacecraft scheduling architecturesisanalyzed and studied. Aiming atthecharacteristicsoffaultdiagnosis system,we designscheduling architectureof fault diagnosis system,which is also called distributed scheduling architecture,for multi—spacecraft faultdiagnosis system based on the overalloptimal performance ofdistributed isconvenient toextend and control spacecraft faultdiagnosis systemefficiently,and on thisbasis,the scheduling system ofon-orbitfaultdiagnosis system forspacecraft is designed. Second,on-orbit faultdiagnosis system forspacecraft isanalyzedsystematically,and the “election'’mechanismis usedtoachieve optimal choice ofscheduling host. Third,according totheresearch onantcolonyoptimization algorithm,the paper proposes aschedulingalgorithm forthesystem and carriesout lotsofexperiments by settingparameter