Research on intelligent charging management system of electric vehicle based on Low power Bluetooth technology

The emission of automobile exhaust is undoubtedly one of the reasons for the degradation of the ecological environment. The increase in the price of non-renewable energy gasoline has limited the implementation of ordinary commercial vehicles. With the development of the Internet of Things technology, electric cars have become the transportation carrier promoted by significant cities based on their low cost of energy and electricity and their friendliness to the environment. As the source of electric vehicle power supply, the construction cost, network access capacity, and charging time of charging pile have become the focus of the problem. Currently, charging piles are used for infrastructure construction in the form of laying communication cables, which has a long construction period and high construction cost, and is not suitable for large-scale construction of charging stations, limiting the popularity of charging piles. The charging operation management system for users adopts the card swiping mode for man-machine interaction, which has few functions for users, increasing the user’s cost and reducing the user’s sense of experience. In this paper, the intelligent charging management system of electric vehicles based on low power Bluetooth technology is studied and improved from three aspects. (1) In terms of charging pile Communication, Power Line Communication technology is adopted for information transmission through existing Power lines, which eliminates the need to lay the Communication cables and transform charging piles, thus reducing construction period, strong anti-interference ability and comprehensive total cost; (2) Using low power Bluetooth technology to build a charging operation management system, relying on the wechat platform with a large number of users to expand user groups, reduce the difficulty of system operation, and make the system more widely promoted; (3) Study the influence of time interval and device delay on bluetooth transmission power consumption, and find the most suitable time interval to ensure communication rate and reduce power consumption. The intelligent charging management system for electric vehicles based on low-power Bluetooth technology has the characteristics of low cost, easy operation and convenient control of charging piles by mobile phones, which is conducive to the promotion and popularization of charging banks.