Low earth orbit satellite command planning device and method, and low earth orbit satellite control system including the same
AssigneeElectronics and Telecommunications Research Institute
InventorsByoung-Sun Lee, Jeong-Sook Lee, Hee-Sook Mo, Jae-Hoon Kim, Seong-Pal Lee
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Abstract
Disclosed is a command planning apparatus of a low-earth orbit satellite, and a low-earth orbit satellite control system including the same. The present invention automates the process of executing the command plan for converting the satellite task schedule planned on the ground into telecommands available by the satellite in the low-earth orbit satellite control system, and automatically selects a data set established by the parameters related to the execution task of the satellite according to the mapping rule.
Claims10
In an apparatus for analyzing orbit and attitude data of a low-earth orbit satellite to establish a task schedule, and generating a satellite command, a low earth orbit satellite command planning apparatus comprising:
- a satellite event predictor for predicting various events related to the satellite;
- a satellite task schedule planner for referring to the event to schedule a task schedule of the satellite, and establishing a satellite task schedule;
- a satellite telecommand planner for generating a set of telecommand data to be executed by the satellite according to the satellite task schedule established by the satellite task schedule planner;
- and
- a mapping rule applier including a plurality of mapping rules applied to the respective task schedules of the satellite.
A satellite command planning method for a satellite control system to generate a satellite command from a satellite task schedule, comprising:
- (a) comparing a satellite task included in a plurality of satellite task schedules with a predefined mapping rule when the satellite task schedules are input;
- (b) generating a set of commands defined by a corresponding mapping rule when the mapping rule corresponding to a condition of the satellite task is found after the comparison, and comparing a next satellite task with a next mapping rule when no mapping rule corresponding to the satellite task is found;
- (c) generating a preliminary satellite command plan based on the generated set of satellite commands;
- and
- (d) inserting a satellite command indicator additionally needed for the satellite command, and generating a final command plan.
In a control system for monitoring and controlling a low earth orbit satellite, a LEO (low earth orbit) satellite control system comprising:
- an antenna for executing radio communication with the satellite;
- a satellite operating system for receiving a telemetric signal of the satellite, processing and analyzing the signal, and transmitting a telecommand signal to the satellite through the antenna;
- a task analysis and planning system for analyzing orbit and attitude data of the satellite to establish a task schedule, and applying a plurality of mapping rules according to the established task schedule to generate a set of telecommand data;
- and
- an interface for transmitting and receiving data between the systems.
Dependencies are inferred from the claim text.