Backup high-reliability communication device and method between single machines inside and outside satellite

An extra-satellite stand-alone, communication device technology, applied in the field of spacecraft communication, can solve problems such as the use of functions that do not involve multiple communication methods, and achieve the effect of increasing reliability and improving reliability.

Pending Publication Date: 2022-05-13
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

[0006] The technologies disclosed in the above three patents are only inventions and improvements for a certain type of communication itself and the unit of a general module, and do not involve multiple communication methods and functions under special circumstances.

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  • Backup high-reliability communication device and method between single machines inside and outside satellite

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Embodiment 1

[0026] When the intra-satellite stand-alone needs to communicate with the satellite large-scale extra-satellite stand-alone, since the satellite large-scale component can only rotate in one direction, when the extra-satellite stand-alone rotates with the large component, the communication between the intra-satellite stand-alone and the satellite large-scale extra-satellite stand-alone cannot pass the conventional The signal transmission line is directly connected to complete the communication problem. The present invention provides a method and device for backing up high-reliability satellite-to-satellite single-machine inter-communication. RS422 is used as the main communication through the slip ring double-point double-wire, and WIFI wireless communication is used as the backup communication. At the same time, the WIFI connection is designed to automatically switch to RS422 communication function. It solves the problem that the satellite main unit and the satellite large com...

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Abstract

The invention provides a backup high-reliability communication device and a backup high-reliability communication method between satellite internal and external single machines. The backup high-reliability communication device comprises a satellite body single machine and a satellite large component external single machine, wherein RS422 is used as a main communication mode. According to the invention, the RS422 double-point double-line same-slip-ring follow-up design is realized, and WIFI communication backup and the design of autonomously switching to RS422 high-reliability redundancy when WIFI connection is overtime are realized. The problem of communication between the satellite body single machine and the satellite large component external single machine is solved.

Description

technical field [0001] The invention relates to the technical field of spacecraft communication, in particular to an inter-satellite communication device and method capable of backup and high reliability. Background technique [0002] At present, RS422, 1553B and CAN bus are mainly used for communication between satellite stand-alone machines. When the stand-alone machines are all on-satellite or off-satellite, the normal communication between the stand-alone machines can be guaranteed by connecting them with conventional communication cables. When the intra-satellite stand-alone unit needs to communicate with the large-scale satellite component and the extra-satellite stand-alone unit, since the large satellite component can only rotate in one direction, when the extra-satellite unit rotates with the large component, the communication between the intra-satellite unit and the satellite-large component extra-satellite unit cannot pass the conventional signal The transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L1/22
CPCH04B7/18513H04B7/18519H04B7/18521H04L1/22
Inventor 方厚招孙延博薛景赛周春华贾奥男王润泽周靖杰
Owner SHANGHAI SATELLITE ENG INST
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