液压支架的电液控制系统主要包括控制单元、主机和本质安全网络。支持控制单元包括控制器、传感器、电磁先导阀和主控制阀。控制单元通过主干电缆彼此连接。该控制器采用RS422按照自定义帧格式通信。然而，总体采用CAN总线按照标准扩展帧格式通信。主机通过CAN总线网络监控所有控制器。本质安全网络通过信号隔离器连接所有控制单元和主机。该控制器采用压力传感器、位置传感器和位移传感器检测液压支架的工作状态，并利用CAN总线网络的优势将信息传递给主机计算机，然后主机计算机做出决策来实现自动控制液压支架。
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