Speech sound guiding method of vehicle satellite guiding system at complex road intersection

[0031] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0032] This example is aimed at Figure 4A , 4B and Figure 5 case, the following approach is proposed:

[0033] 1. When making a digital map for navigation, store all lanes together, including the arrival direction of special lanes or auxiliary roads;

[0034] 2. When the user selects the starting point and the destination, the best path from the starting point to the destination is automatically selected;

[0035] 3. Receive the global positioning system (GPS) signal through the vehicle satellite navigation system to determine the current position on the digital map;

[0036] 4. According to the selected route, when the distance between the vehicle and the next intersection reaches the voice prompt threshold (for example, 200 meters), the following processes are performed according to different situations:

[0037] a. If i