Vehicle GPS

　　In addition to providing navigation information and other basic functions for driving, the on-board GPS system is also developing new services. The combination of GPS and wireless communication technology (such as GPRS/3G) can provide positioning information for Telematics service providers. When the vehicle encounters difficulties and needs assistance, the service center can provide road rescue for the vehicle owner after receiving the vehicle's location information; Taxis, buses and sightseeing buses can also use GPS to perform fleet tracking and control functions; In addition, the loss can also be reduced through this function after the vehicle is lost. Successful cases of applying GPS to emergency rescue include the e911 program in the United States and the eCall program in the European Union.

　　The e911 plan of the United States belongs to an individual emergency rescue strategy. It requires that mobile phones must have a location function for emergency notification. The European Union has also put forward an eCall plan related to emergency rescue of automobile driving. This plan provides vehicles with on-board equipment with eCall function. This equipment will combine the three functions of collision detection, GPS and mobile communication to automatically report to the European unified emergency telephone number 112 at the first time. In addition to the geographical location of the vehicle, eCall also sets the data that can be transmitted, Let 112 wiring personnel judge the appropriate rescue method by voice and information. It is scheduled that after September 2009, all new cars in the EU will have the eCall function.

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