Program background 1. Industry background The Chinese government has responded to the development of the times and has developed the electric vehicle industry in an unconventional and vigorous manner. This has led to the booming of new energy electric vehicle charging pile projects, and electric vehicle charging stations have emerged in various parts of China! The charging pile is a power station of an electric power vehicle, and its function is similar to that of a fuel dispenser in a gas station. Each charging post is equipped with a charging plug, which can charge various types of electric vehicles according to different voltage levels. The electric vehicle charging pile adopts the AC and DC power supply mode, and needs a special charging card to be used for the card. The charging pile display can display the charging amount, the cost, the charging time and the like. The charging pile is used as a human-machine interaction product for the charging state of the gas station and the residential electric vehicle. Timing charging and metering metric charging are possible. The card is pre-charged, and each time it is charged, it is automatically subtracted from the card according to the power degree, and the ticket is printed. This program describes the application of the EPC-9200 industrial control board in the electric vehicle charging pile system. Manufacturers can quickly assemble the charging piles with our company's solution and quickly occupy the market. Figure 1.1 Charging pile 2, charging pile system requirements Support local display, touch screen input and key input; The user charges the card through the non-contact IC card; Through the display screen, charging mode selection, charging status display, charging billing inquiry, consumption amount display and balance inquiry can be performed; Control the charger to charge the car battery according to the charging mode selected by the user; Support consumption document printing; Ability to monitor the voltage, current and temperature of the car battery; Support external watt-hour meter; Support voice prompts; The parameters on the charging pile are configured by infrared, and the data query is performed; Ability to transfer data via CAN, Ethernet or GPRS; Local large data storage (pictures, advertisements, charging records, etc.); Support remote upgrade of applications; The display supports 10.4 inches. 2835 Led Strip,Single Color Led Strips,Single Color Light,Led Single Light Strip NINGBO SENTU ART AND CRAFT CO.,LTD. , https://www.sentuledlight.com