Automatic Planning Technology of Areospace Control Mission

Paper number

IAC-12,B6,2,3,x13384

Author

Mrs. WEI GAO, Beijing Aerospace Control Center, China

Coauthor

Prof. Jianping Zhou, China Manned Space Engineering Program Office, China

Year

2012

Abstract

Traditional plan operating mode bases on theoretical plan．It arranges all events or actions to TT&C swaths in terms of theoretical orbit of spacecraft and tracking prediction of ground stations．This mode needs unchangeable requirements of aerospace control，otherwise will adjust theoretical plan．So it is impossible to adjust theoretical plan frequently in the coming missions．Traditional plan operating mode can’t meet the requirements very well，they are mainly manifested in the following aspects：complexity of flight systems and control modes，the need for flexibility，distributed planning．
     However，in recent years，satellites、manned space、lunar or deep space exploration and so on present some new characteristics：various functions，flexible deployments and complex combinations．These traits need an automatic planning system to pick up speed of response，improve efficiency of decision，optimize procedure of control，deploy ground resources rationally and reduce risks of human factor，finally，achieve intelligent management of aerospace．This paper indicates the application of AI technology in space domain．
     We describe mission with PDDL（Planning Domain Definition Language）．It includes：objects，predicates，functions and actions．Objects，predicates and functions express static characters of mission planning．Actions indicate Agents how to change mission statistics．A planning mission is made of two files：domain.pddl and problem.pddl．Domaim.pddl will define object type，predicate type，function type and action model．Problem.pddl describes the set of objects，initial and objective statistics of mission．Then these two files are input conditions of Mission Automatic Planning System．Finally，we achieve our plan and translate it to aerospace mission control plan．At present，we have tried to realize a planning problem with this method in Chang’e mission：telecontrol management of on-orbit aerocraft．It is a temporal planning problem with periodic tasks．In the future，we will fulfill to perform science data downlink planning etc.．

Abstract document

IAC-12,B6,2,3,x13384.brief.pdf

Manuscript document

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