Smart Charging Pile Solutions
1.1. System principle and characteristics
This system uses the wireless 3G/4G network transmission technology to carry on the data statistic and the management operation. There are three main parts of the system, the back-end charging Management Center service platform includes membership card issuing Management Server, sub-station monitoring Management Server, SMS platform and so on; Intermediate network communication technology uses Xiamen as the communication wireless 3G/4G router to realize the data networking; The front part mainly has the charging pile terminal controller, and video surveillance front-end camera DVR system.
Terminal controller of electric vehicle charging pile, the user can self-swipe the user authentication, balance query, billing query and other functions, can also provide voice output interface to achieve voice interaction. The user can select 4 charging modes according to the LCD display: Charging on time, charging by battery, charging by mileage, etc.
Electric vehicle charger Controller and concentrator use can bus for data interaction, concentrator and server platform through Xiamen for that communication router 20XX routers use wireless 3g/4g Network for data interaction, for security purposes, charge and amount data for secure encryption.
The main function of the battery management system is to monitor the working state of the battery (voltage, current and temperature of the battery), predict the battery capacity (SOC) of the Power battery and the corresponding remaining mileage, and carry out the battery management to avoid the serious imbalance between the discharge, overcharge, overheating and the voltage of the monomer battery. Maximize battery storage capacity and cycle life.
System Design Scheme diagram:
1.2, the system wireless 3g/4g networking features Advantages
The wireless network monitoring system of the car charging pile is not only a simple card charging, the credit card checkout, the equipment monitoring and fault handling of the charging controller and the power management system can be monitored through the 3g/4g router, and the local video security monitoring ensures that the equipment is running 24 normally. If necessary, through video surveillance capture and video upload server forensics. Backstage Center management and data Center for the user mobile phone terminal app real-time query current or historical information, SMS verification platform, more reliable to ensure user information and recharge membership card security.
As a charging pile for electric vehicle, the particularity of its structure determines that the automatic communication system is characterized by many sites, wide coverage and short communication distances. And with the development of the city, the network topology requires flexibility and expansibility structure, so the choice of wireless 3g/4g network for electric vehicle charging pile communication mode can highlight the advantages.
1.3. Summary
The country has developed a new energy vehicle ten-year development plan and electric vehicle "Twelve-Five" special plan, vigorously support the electric vehicle technology research and development and industrialization. April 18, 2012, the State Council discussed through the "Energy saving and new Energy vehicle Industry Development Plan (2012-2020)", to accelerate the cultivation and development of energy-saving and new energy automotive industry, to alleviate energy and environmental pressure, promote the transformation and upgrading of the automobile industry, cultivate new economic growth point.
At the same time, the State Grid, the two major grid companies in the southern Grid have exhibited their latest achievements in electric vehicle charging system and announced the relevant action plan. "The goal of the ' Twelve-Five ' is to initially form an intelligent charging service network covering the company's power-supply business area to meet the need for the development of 200,000 electric vehicles in the company's power supply area," The Southern power Grid said. "。
This charging pile wireless monitoring system uses wireless 3g/4g ROUTER to realize the whole system network operation, management and monitoring function. The cost and time of project expenditure are saved in the pre-network layout and development cycle of the charging pile site. The system is "low-carbon environmental protection, build a better city" as the theme, reduce traffic exhaust emissions, reduce environmental pollution, but also play a role in energy conservation.
Intelligent charging pile Wireless monitoring scheme