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A system and method for autonomous switching processing of a space vehicle CAN bus

A CAN bus and space vehicle technology, applied in the field of space and aerospace, can solve problems affecting the normal operation of electronic equipment, rapid thermal changes, space particle impact, etc., to improve the fault tolerance of the bus and ensure the success rate of communication

Active Publication Date: 2022-07-12
航天科工空间工程发展有限公司
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Problems solved by technology

Space vehicles are also faced with harsh space environments such as space particle impacts, radiation, and rapid thermal changes, which may affect the normal operation of electronic equipment

Method used

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  • A system and method for autonomous switching processing of a space vehicle CAN bus
  • A system and method for autonomous switching processing of a space vehicle CAN bus

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Embodiment Construction

[0044] In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0045] An embodiment of the present invention proposes an autonomous switching processing system for the CAN bus of a space vehicle. When the CAN bus is used on the space vehicle, the dual bus of hot backup is often used, and the system is used to realize the autonomous management of the dual bus of hot backup;

[0046] like figure 1 As shown, the system includes:

[0047] a bus error counting module (1), a bus control module and a device autonomous management module;

[0048] The bus error count module includes a bus ...

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Abstract

The invention discloses a CAN bus autonomous switching processing system and method of a space vehicle. The system includes a bus error counting module, a bus control module and an equipment autonomous management module. The bus error counting module is used to record the number of communication errors and the number of communication failures of the first bus and the second bus and send them to the bus control module; the bus control module is used to record the number of communication errors and communication failures according to the bus. Perform processing operations on the bus; the device autonomous management module is configured to receive a processing operation instruction sent by the bus control module, and execute the instruction.

Description

technical field [0001] The invention relates to the field of space and aerospace, and more particularly, to a system and method for autonomous switching of a CAN bus of a space vehicle. Background technique [0002] The general spaceborne information network design of space vehicles is usually complicated. The general interface of data and instruction communication between devices can include 422 interface, 485 interface, CAN interface, LVDS interface, 1553B interface and so on. Among them, the 422 interface and the LVDS interface are generally point-to-point interfaces, the CAN bus interface and the 1553B interface are generally bus interfaces, and the 485 interface has a point-to-point interface and a bus interface. [0003] In recent years, with the development of space vehicles, the development of microsatellites has become increasingly rapid, and the single aircraft on board is developing towards integration, miniaturization and standardization. As a bus interface, th...

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257Y02P90/02
Inventor 孔晓健李存洲易钰驰张建伟李博
Owner 航天科工空间工程发展有限公司
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