An Autonomous Mission Planning Method for Deep Space Exploration Based on Constraint Satisfiability Technology

Abstract

The invention discloses a deep space exploration autonomous mission planning method based on the constraint satisfiable technology, relates to deep space exploration autonomous mission planning methods and belongs to the technical field of aerospace engineering.The deep space exploration autonomous mission planning method comprises the following steps that a deep space probe system model is established; a deep space probe constraint model is established; the deep space probe system model is layered according to the deep space probe constraint model; planning missions are initialized; a movable unit (the symbol is shown in the description) is selected from a level layer, a state is selected from a state collection Di corresponding to the movable unit (the symbol is shown in the description), and a value is assigned to the movable unit (the symbol is shown in the description); consistency inspection is carried out on constraints of the movable unit; value assigning and circulating are carried out until all constraints in a constraint collection C of the deep space probe constraint model are met, a value assigning result serves as a deep space exploration autonomous mission planning result, and autonomous mission planning is completed.By means of the deep space exploration autonomous mission planning method based on the constraint satisfiable technology, the problems that in existing deep space missions, constraints are complex, and the coupling relations between the constraints are strong are solved, the autonomous mission planning efficiency of a deep space probe is improved, and the requirement for the real-time performance of the probe is met.

Description

technical field [0001] The invention relates to an autonomous mission planning method for deep space exploration based on constraint satisfiable technology, which belongs to the field of aerospace technology. Background technique [0002] In the deep space environment, based on the perception and understanding of the space environment and the capabilities and status of the deep space probe itself, the deep space probe uses computer software technology, artificial intelligence technology, etc. The selected actions and the resource constraints provided perform reasoning and automatically generate a set of time-ordered action sequences, called a "plan". Once the plan is executed, the state of the detector can be successfully transferred to the desired goal. state. [0003] At present, NASA and ESA have successfully applied autonomous planning technology to deep space probe detection missions. However, as the flight distance of deep space exploration missions has become farthe...

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Problems solved by technology

[0005] Aiming at the problem of autonomous mission planning of deep space detectors, the technical problem to be solved by a method for autonomous mission planning of deep space exploration based on constraint satisfiable technology disclosed in the present invention is that it can overcome the complexity of constraints and the coupling between constraints in existing deep space missions. Strong relationships and other difficulties, improve the efficiency of autonomous mission planning of deep space probes, and meet the real-time requirements of the probes

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