The difference between car navigation and mobile phone navigation is that car navigation is a special equipment, the operation is simpler, and the special function of driving navigation is stronger, but the comprehensive function is far inferior to mobile phone navigation. Mobile phone navigation can currently meet the needs of driving, and the comprehensive function is more powerful, far exceeding vehicle navigation. For example, mobile phone navigation can use the Internet to provide a road of roads, provides more detailed geographical information, can be more convenient to update at any time. It can provide navigation functions such as cycling and walking other than driving. Subway, coach, and even railway information.

　　The following specifically explained:

　　1. Mobile phone navigation: Start the map software of mobile navigation. Open the map. The picture is simple, with three -dimensional sense, highlighting roads, streets, and various information points. It looks very rich in information. It can be used for pedestrians as a guide for transportation such as bus, subway, taxi, etc. At the same time, it can take into account the use of navigation on the car. It can be said that the purpose is very wide. At the same time, dynamic traffic information was also absorbed to avoid congestion and accident sections. The mobile phone is basically an A-GPS positioning method, so the traffic needs to be used during navigation.

　　With mobile phone navigation as a car navigation, the big advantage is convenient, the mobile phone is around, and use it. The collection of geographical information data in China is divided into qualifications. Gaode has a Grade A and mapping qualifications. Baidu needs to borrow a third party. Navigation update progress is similar. The difference is to collect data more carefully, and the data collection is more complete.

　　2. In terms of hardware, car navigation is currently the mainstream car DVD navigation for special cars, embedded hosts, and perfectly fused with central control. Generally, there are 7 inches. A lot of intuition.

　　1) In the car environment, support real -life navigation (requires hardware support). Combined with the real -time collection of the camera to collect the real scenes of the road outside the car, use the GPS signal to locate the location of the vehicle in real time. The direction indicator indicates that it is directly superimposed on the real -time screen to perform very intuitive picture navigation.

　　2) Ret search function along the road. Support the POI type retrieval commonly used within 500 meters along the two sides of the planning route, and clearly display the POI point on the left or right of the planning route. Eating, living, refueling, parking and other positions during the trip. Most navigation has this function.

　　3) lane information instructions. In advance, inform the number of lanes and steering information in front of them, and instruct the owner of the car owner to choose the trail of driving in accordance with the planned route to avoid violations of regulations or bypassing the road.

　　4) Electronic eye data is upgraded separately. This is a very affordable and useful function for driving.

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