針對煤礦綜采工作面電液控制系統中液壓支架多而分散、系統信息量大、調試不方便
等特點，介紹了一種基于CAN 總線的液壓支架控制器的設計方案。通過CAN 總線，服務器和液壓支架控制器節點可直接進行通信，形成分布式網絡，簡化了系統結構，實現多液壓支架的分散安裝和集中控制功能。本文介紹了系統的整體結構、工作原理、液壓支架控制器節點的硬件設計和CAN應用層協議以及軟件通信設計。
關鍵詞：CAN總線；液壓支架；單片機；通信
Abstract：Countering the problems existing in the electric and hydraulic control system for
hydraulic powered support in coal mine , such as the condition of excessive and distributed
hydraulic powered support, many information exchange, and debugging, A hydraulic powered
support controller based on CAN bus is designed．Via CAN-BUS, the server and these nodes of hydraulic powered support controller can communicate with each other directly, like a distributed network., the system structure is more concise. The function of distributed setting and concentrated control is realized in this system. The whole structure and principle of system, the hardware circuit, application layer protocol, and the software programming, were discussed in detail.
Key words：CAN bus；Hydraulic Powered Support；Microcontroller；Communication