Car GPS navigation, navigator is a car driving assistance device that can help users accurately locate their current location, calculate the itinerary according to the established destination, and guide the user to the destination through map display and voice prompts. The current market sales are very broad, and the general civilian navigation GPS is often mentioned by everyone. Such GPS is mainly used for car positioning and navigation. At present, more and more developed roads and intricate viaducts make it increasingly difficult for drivers to distinguish the road. Navigating the car GPS really brings great convenience to the driver!