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Automated Allocation of ESA Ground Station Network Services
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BibTeX
@MISC{Damiani_automatedallocation,
author = {Sylvain Damiani and Holger Dreihahn and Jörg Noll and Marc Niézette and Gian Paolo Calzolari},
title = {Automated Allocation of ESA Ground Station Network Services},
year = {}
}
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Abstract
The ESTRACK Planning System (EPS) operationally plans the use of the ESAs ESTRACK ground station network. It uses an incremental planning approach to successively build up the ESTRACK Management Plan using feedback provided by its user missions. The system is configured with a specification of the user missions ’ needs and the networks constituents ’ capabilities. The planning process matches both elements to create a plan that is free of conflicts and serves the needs of all missions. To build the plan, a constraint network is constructed from the dynamic input to the system and its configuration. The network is built incrementally exploiting the periodic nature of the communication request timings required by the user missions. The resulting CSP contains temporal binary constraints, linear constraints and disjunctions of binary constraints. Its consistency is checked in two steps: first the DTP (Disjunctive Temporal Problem) part is solved and then the remaining linear constraints are checked using Linear Programming algorithms. Future developments of EPS will include a more sophisticated resource modeling and the inclusion of more missions and external users. Advanced features like active constraints and global optimization are conceivable. The ESA ground station network (ESTRACK) The European Space Agency (ESA) runs a number of ground stations to support its own missions and the missions of industry contractors. 8 stations owned by ESA plus 3 cooperative stations form the basis of the Esa TRACKing network, ESTRACK. It also includes control and communication facilities. ESTRACK currently supports 10 operational ESA science missions. It provides services for data downlink and the uplink of commands to satellites in orbit. In addition to the
Keyphrases
esa ground station network service linear constraint user mission estrack planning system planning process match user mission need linear programming algorithm esa tracking network disjunctive temporal problem estrack management plan esas estrack ground station network future development communication request timing temporal binary constraint data downlink advanced feature european space agency network constituent capability esa ground station network active constraint binary constraint cooperative station constraint network dynamic input incremental planning approach operational esa science mission periodic nature sophisticated resource modeling ground station communication facility global optimization industry contractor external user
