Multi-set rocket body container environment monitoring method and system based on CAN bus

Abstract

The present invention provides a CAN bus-based environment monitoring method and system for multi-set rocket body containers, wherein the method includes: connecting the environment monitoring server host to a preset number of lower-position monitoring and control modules through 16 controller local area network buses , and connect the standby machine of the environmental monitoring server to the monitoring control module of the preset number of lower computers through the 16-way CAN bus; connect the main machine and the standby machine of the environmental monitoring server to the pressure supply server respectively; the main machine and the standby machine of the environmental monitoring server receive The pressure monitoring data sent by the monitoring and control module of the lower computer; the host computer of the environmental monitoring server has the right to communicate with the pressure boosting server, and sends the pressure monitoring data to the pressure boosting server, and sends heartbeat frames to the standby machine of the environmental monitoring server at a preset period; If the standby machine does not receive the heartbeat frame sent by the host within the preset time, the environmental monitoring server standby machine obtains the communication right with the pressure boosting server and sends pressure monitoring data to the pressure boosting server.

Description

technical field [0001] The invention relates to the electrical field, in particular to a CAN bus-based method and system for monitoring the environment of multiple groups of rocket-body containers. Background technique [0002] The marine environmental monitoring system is an environmental protection and monitoring equipment for rocket-body containers. It is mainly used for the adjustment and control of the internal temperature and humidity of the container carrying the rocket body, and the monitoring of the pressure of the rocket body storage box, etc. during the XX-5 carrier rocket's transportation from Xingang, Tianjin to Qinglan Port, Hainan. [0003] Since the number of monitoring containers per transport ship is 5, according to the traditional monitoring method, it is necessary to equip the same number of servers and connect one-to-one through the CAN (ControllerAreaNetwork, Controller Area Network) bus, and because different container monitoring points are different ...

AI Technical Summary

Problems solved by technology

When the CAN bus fails, the bus cable needs to be replaced. When the container is changed, the server monitoring software needs to be changed. The later maintenance workload is relatively large.

However, using a single-channel CAN bus to connect multiple nodes, for a marine environmental monitoring system with a baud rate of 250K and a distance between monitoring points of 200 meters, the communication reliability of the system cannot be satisfied.

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