Satellite CAN bus interconnection relation automatic generation and dynamic adjustment method and system

By sending request frames and parsing response frames in the satellite communication system, the priority and bandwidth of the CAN bus are dynamically adjusted, which solves the problems of low efficiency and lack of flexibility caused by manual configuration in the existing technology, and realizes efficient and accurate CAN bus management and real-time monitoring.

CN120692109APending Publication Date: 2025-09-23SHANGHAI SATELLITE ENG INST
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Patent Information

Application Number
CN202510576146.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

In existing satellite communication systems, the configuration and management of the CAN bus rely on manual recording, which is inefficient and error-prone. It cannot adapt to dynamically changing environments and needs, affects the flexibility and reliability of the system, and lacks real-time monitoring and dynamic adjustment mechanisms.

Method used

The request frame is sent through the satellite's central control unit, the lower computer calculates the delay time and records the relevant parameters, and generates a response frame. The database parses these frames to draw the CAN bus interconnection diagram and dynamically adjusts the priority and signal bandwidth of the lower computer to monitor and optimize the transmission efficiency in real time.

Benefits of technology

It realizes the automatic drawing and dynamic adjustment of CAN bus interconnection relationships, improves the efficiency and accuracy of the system, ensures the priority transmission of key data, reduces delays and signal interference, and enhances the system's responsiveness and stability.

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Abstract

The invention provides a satellite CAN bus interconnection relation automatic generation and dynamic adjustment method and system. The satellite CAN bus interconnection relation automatic generation and dynamic adjustment method comprises the steps that a central control unit of a satellite sends a request frame containing a query command; the delay time of the lower computer is calculated according to the node ID of the lower computer; the lower computer sends a response frame in a preset time window; transmitting the response frame to a database along with a data stream of the satellite, analyzing the response frame of the database, and drawing a CAN bus interconnection graph according to the response frame and a self-defined rule in the database; the priorities of data received by different types of lower computers are dynamically adjusted, and the transmission efficiency is optimized; the signal bandwidth is dynamically adjusted, real-time correction is carried out, and the receiving and processing efficiency of the lower computer is optimized; according to the method, the drawing efficiency and accuracy of the satellite CAN bus interconnection diagram are effectively improved, the transmission performance of high-priority messages is ensured, and the dynamic adjustment capability and the real-time monitoring capability of a system are enhanced.
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