This solution is applicable to the car factory and logistics company. The car factory is mainly the charging pile delivered with the car, which is high quality and cheap, simple and convenient to operate. The simple version of 7KW AC pile is recommended here, which is small, light and beautiful, and can be controlled by wechat applet. Multiple charging modes can be set in the applet, password charging, safe and simple, Bluetooth connection, and charging is not affected by the network, Simple and practical, cost-effective. Logistics companies have many sites, which are relatively scattered. For large sites, vehicles are concentrated. In order to save charging time, it is recommended to use high-power one machine and two guns. There are many small logistics sites, which are widely distributed and need a large number of charging piles. It is suitable to use wall mounted or mobile medium power charging piles with low cost and flexible layout, especially the mobile ones, which are convenient and flexible to install, It can unify lease management, support Ethernet, 4G, WiFi and other communication modes, and is equipped with charging operation management system platform and cloud server platform to facilitate charging pile operation management and centralized control.