Information transmission system and method based on satellite-borne electronic equipment

Abstract

The invention relates to an information transmission protocol system and method based on satellite-borne electronic equipment. The invention has the benefits that: firstly, the integration of a data bus, an OC (Open Collector) signal, clock signal, an analogue signal and an I / O (Input / Output) signal on the satellite is realized, and thereby the design flow of the satellite is simplified; secondly, according to the protocol, a timing function, a plug and play function and instruction analysis and execution functions can be finished in the protocol; thirdly, powerful support for unifying a singlechip interface of equipment is provided; and various singlechips apply the same protocol and the coordination in the protocol aspect is avoided, so that the design efficiency of the satellite is greatly improved; fourthly, traditional satellite-borne data and non-data signals are classified; and corresponding data are specified and are transmitted by different data channels and non-data channels through a physical layer; and fifthly, according to the protocol designed by the invention, separate channels can be allocated for a ground testing system and special channels can be provided for diagnosing faults of the satellite during operation in orbit.

Description

technical field [0001] The present invention relates to an information transmission system and method, in particular to an information transmission system and method based on satellite-borne electronic equipment. Background technique [0002] In the current satellite electronic system design, the choice of data bus is not uniform, and different data buses are often used in different model designs, such as RS485, CAN, 1553B, and SpaceWire. The bus forms used are not uniform, resulting in design requires a lot of protocol coordination. In addition to the data bus, the transmission of clock signals, analog quantity acquisition, OC control output signals, I / O signals, etc. needs to be redesigned in different satellite model designs. This leads to intricate connections between satellite equipment and slow progress in model design. In addition, in addition to the complex hardware connection, the protocols of each stand-alone device at the application layer are not uniform. D...

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Problems solved by technology

[0004] The technical problem solved by the present invention is to construct an information transmission system and method based on on-board electronic equipment, and overcome the technical problems in the prior art that the transmission protocol of the on-board electronic system is complex and requires a large amount of manpower for coordination

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