Control method for charging system of charging pile

The invention discloses a control method for a charging system of a charging pile. A communication data message employs a binary format, a client initiatively proposes a connection request to a Server, a protocol data pack is sent to the Server after connection is succeed, a single pack transmission mode is employed all the way, a multi-pack transmission mode is not employed, legality verificationcomprising communication length, verification, calculation and the like is needed to be performed after the data pack is received by dual parties, and the client is needed to automatically maintain acommunication connection state, automatic connection is attempted until connection is recovered after initial network break is connected. After each module employs a state machine, the program complexity is greatly reduced, the used running resource is reduced, the cost is reduced, and the stability is improved; and a user can enjoy service such as charge control billing with high cost performance when a control panel loa