Satellite-borne CAN (controller area network) bus plug and play method

Abstract

The invention provides a satellite-borne CAN (controller area network) bus plug and play method. According to the method, equipment accessed into a CAN bus network automatically sends registration information requests, a satellite center computer actively obtains the registration information of the access equipment, the CAN bus of each equipment is dynamically configured according to the registration information of the access equipment, the software of the satellite center computer is rebuilt according to the registration information of the access equipment, and the rebuilt satellite center computer carries out normal bus communication with each equipment after the re-configuration. A system adopts the CAN bus to be used as a communication network, through the modification on a protocol, the equipment with an CAN bus interface can meet the plug and play use method, the adaptation to different satellite models can be realized without changing software and hardware, and the parallel development or advanced development of the satellite-borne equipment relative to the satellite general scheme is convenient.

Description

Technical field [0001] The invention relates to a plug and play method for onboard CAN bus, which belongs to the field of computer bus communication. Background technique [0002] The "plug and play" of CAN bus is mainly used to complete the rapid integration and application of various systems on the satellite. At present, there are few domestic researches on the on-board CAN bus that supports plug and play. Generally for different satellite models, according to the characteristics of the model type, a specific CAN bus protocol is developed, and then each system or device on the satellite changes or writes its own software according to the protocol, that is, each satellite model has its specific protocol and The software generally cannot be used on other satellite models as it is. Manufacturers put a large part of their energy on the interface and compatibility with other devices on the satellite, and cannot fully focus on the realization and improvement of their own equipment ...

AI Technical Summary

Problems solved by technology

Manufacturers put a lot of energy on the interface and compatibility with other devices on the star, and cannot fully focus on the realization and improvement of the functions and performance of their own devices.

However, with the rapid assembly of small satellites, rapid testing, and the development trend of shortening the development cycle, the current method of using the CAN bus has been difficult to meet the development requirements.

Images