Electric vehicle charging station (pile) intelligent service system
I. Project Background
As a kind of green vehicle with broad development prospects, electric vehicles will be extremely fast in the future, and the market prospects in the future will be extremely large. In the context of the global energy crisis and the severe environmental crisis, the Chinese government has actively promoted the application and development of new energy vehicles. Charging/changing power stations is an important supporting infrastructure necessary for the development of electric vehicles. It has very important social and economic benefits. . At present, a campaign to build an electric vehicle charging/changing station has been launched nationwide.
Second, the system introduced
The overall system consists of four parts: electric vehicle charging piles, concentrators, battery management system (BMS), and charging management service platform.
The control circuit of the electric vehicle charging pile is mainly completed by an embedded ARM processor. The user can self-service credit card for user authentication, balance inquiry, billing inquiry and other functions, and can also provide a voice output interface to achieve voice interaction. Users can choose 4 kinds of charging modes according to the LCD display instructions: including charging on time, charge by power, auto full, charging by mileage, etc.
The electric car charger Controller and the concentrator use the CAN bus for data exchange, and the concentrator and server platforms use the wired Internet or the wireless GPRS network for data exchange. For safety reasons, the electricity billing and amount data are securely encrypted.
The main function of the battery management system (BMS) is to monitor the operating status of the battery (battery voltage, current, and temperature), predict the battery capacity (SOC) of the battery and the corresponding remaining mileage, and perform battery management to avoid overdischarge. The phenomenon of serious voltage imbalance between overcharge, over-charge, overheating, and individual cells maximizes the use of battery storage capacity and cycle life.
The charging service management platform mainly has three functions: charging management, charging operation, and comprehensive inquiry. Charge management manages the basic data related to the system in a centralized manner, such as electric vehicle information, battery information, user card information, and charging pile information; charging operations mainly charge users for charge management; comprehensive query refers to management and operation data Conduct comprehensive analysis queries.
Third, successful cases
The company has successfully developed and participated in the implementation of the first batch of 500 electric vehicle charging piles and charging stations intelligent supervision service system in Zhejiang Province.
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Guangzhou Cheng Wen Photoelectric Technology Co., Ltd. , https://www.leddisplaycw.com