Tree-like CAN (controller area network) bus communication control network for high-altitude fire truck

Abstract

The invention discloses a tree-like CAN (controller area network) bus communication control network for a high-altitude fire truck. The tree-like CAN bus communication control network comprises a plurality of optical fiber CAN bus communication hubs connected in a tree-like topological structure distribution manner, the optical fiber CAN bus communication hubs are connected through optical fibers, a plurality of CAN nodes of a high-altitude fire truck control system are integrated in a sub-network by each CAN bus communication hubs, CAN bus node signals in sub-networks are transmitted by twisted pairs with shielding layers, the problem of difficulty in data exchange among buses and among different bus nodes in the prior art is solved, the optical fibers are used for transmitting data, corresponding electromagnetic interference is avoided, signal delay and attenuation are decreased, wiring of platform nodes is facilitated, communication of other sub-networks in the whole control network cannot be affected when parts of lines are disconnected, and the tree-like CAN bus communication control network is applicable to the high-altitude fire truck and has a fine application prospect.

Description

technical field [0001] The invention relates to a tree-type CAN bus communication control network used for high-altitude fire trucks, and belongs to the technical field of communication networks. Background technique [0002] High-altitude fire trucks are used to fight fires in high-rise buildings, petrochemical tall installation areas, and large warehouses. They can spray fire extinguishing agents to the fire, establish fire-fighting channels for firefighters, supply fire-fighting equipment and tools, rescue people trapped in fires, and rescue valuables. etc. Due to large-scale and intelligent, the data information exchanged by the whole machine is relatively large, and the data exchange between each other must be sufficient. At present, the computer integrated control system based on CAN bus communication is simple and reliable, and has strong communication capabilities. , has been widely used in the electronic control system of high-altitude fire trucks. The distribution ...

AI Technical Summary

Problems solved by technology

The tree-type CAN bus communication control network for high-altitude fire trucks of the present invention solves the difficult problem of data exchange between buses and between nodes of different buses in the prior art, and uses optical fiber to transmit data to avoid corresponding electromagnetic interference. Interference, reduce signal delay and attenuation, facilitate the wiring of platform nodes, when some lines are disconnected, it will not affect the communication of other sub-networks of the entire control network, suitable for high-altitude fire trucks, and has a good application prospect

Images