A Compatible Processing Method for Direct Commands on the Ground and Autonomous Commands on the Satellite

Abstract

The invention discloses a method for compatible processing of ground direct commands and on-board autonomous commands, including: (1) the on-board remote control unit includes a main remote control module and a backup remote control module, and the main remote control module and the backup remote control module work in hot backup mode , to receive the direct command code sent by the ground and the on-board autonomous command code sent by the on-board computer. The ground sets a direct command interval between sending two direct command codes, and the onboard computer sets an autonomous command interval between sending two autonomous command codes, and the set direct command interval and the autonomous command interval are not less than the output command pulse width; ( 2) In the FPGA (or ASIC), realize the channel control of the autonomous command, the priority selection of the direct command on the ground, the decoding of the autonomous command and the direct command, and control the direct command on the ground and the autonomous command on the star through the command queue controller The output can realize the compatibility and orderly output of the direct command on the ground and the autonomous command on the star.

Description

technical field [0001] The invention belongs to the technical field of satellite remote control, and in particular relates to a method for processing the compatibility of direct commands on the ground and autonomous commands on the satellite. Background technique [0002] The spaceborne remote control unit (or called the spaceborne remote control device) receives the ground direct command (or called the ground remote control command) and the onboard autonomous command (or called the satellite program control command) from the two channels respectively, and after parsing and decoding, Output commands to control the action of the spacecraft. This control method may have conflicting commands, resulting in unexpected results such as lost commands, which may affect the safety of the spacecraft. The direct command code on the ground is sent by the ground personnel to directly control the aerospace industry. The onboard autonomous command code is the command generated by the spacec...

AI Technical Summary

Problems solved by technology

[0002] The space-borne remote control unit (or called space-borne remote control equipment) respectively receives ground direct commands (or called ground remote control commands) and on-board autonomous commands (or called satellite program-controlled commands) from two channels. After analysis and decoding, The output command controls the movement of the spacecraft. This control method may have command conflicts, resulting in unexpected results such as lost commands, which may affect the safety of the spacecraft. The direct command code on the ground is sent by the ground personnel to directly control the spaceflight. The autonomous command code on the star is the command generated by the FDIR (fault detection, isolation and recovery) strategy of the spacecraft

[0003] In the existing technology, the direct command on the ground and the autonomous command on the satellite are respectively equipped with command drive circuits to realize the compatible output of the direct command on the ground and the autonomous command on the star. Two sets of command drive circuits, the direct command on the ground and the autonomous command on the satellite are sent at the same time, the output power of the command power supply is required to be doubled, and the actual use is poor;

[0004] In addition, by increasing the CPU coprocessor, through the "allow" and "prohibit" signs between the core CPU circuit and the CPU coprocessor, the CPU coprocessor and the on-board remote control device dual-machine "busy" sign, as a handshake signal to solve the conflict between direct commands on the ground and autonomous commands on the satellite. However, this method increases the command transmission link between the on-board computer and the on-board remote control equipment, increases the complexity of the hardware circuit, and thus reduces its reliability. sex

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