The combination of HMI+PLC+4G gateway has been implemented on the hardware, and the touch screen is pre installed with Kunlun Tongtai MCGS PRO embedded configuration software. The PLC adopts a domestically produced Siemens 200 PLC industrial control board and is programmed using STEP7 MICRO WIN SP9 software. 4G networking allows free integration with the Blue Bee EMCP IoT cloud platform, achieving functions such as data monitoring, cloud configuration, alarm, cloud based historical data storage, and remote loading and downloading of PLC programs.