Design of Monitoring and Control System of Main Ventilator of Coal Mine

The paper proposed a design scheme of monitoring and control system of coal mine main ventilator based on S7-300 PLC according to running status and control requirements of coal mine main ventilator, and introduced composition, parameter monitoring methods, control flows and design of monitoring interface of upper computer in details. The application result showed the system runs stably and reliably and improves automatic management level of main ventilator of coal mine.