Abstract: With the development of electric vehicles,the supporting facilities,especially the charging stations,have caught more and more attention.How to locate the charging stations quickly and accurately is becoming one of the most important problems for the drivers.In accordance with the disadvantage of traditional navigators to upgrade the electronic map in time,a new type positioning system of electric vehicle charging station is proposed.The system is mainly composed of DSP,GPRS transmission module,GPS transmission module.The DSP is used to process the data.The GPRS module is used to receive the geographical position and statement of charging station while the GPS module is used to locate the charging stations and the vehicles.The system can embed the position information into the electronic map and realize the real-time location and path planning,which overcames the disadvantage of navigators.It provided the drivers with a low-cost and high-performance method of charging station positioning.

Key words: GPS technology, GPRS technology, charging station localization system