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

A technology for satellite navigation systems and complex intersections, which is applied to road network navigators and other directions, and can solve problems such as driving on wrong roads

Inactive Publication Date: 2004-05-05
深圳市易凯数码有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2. The intersection of irregular intersections with 5 or more roads
[0010] 3. Complicated intersections
However, the fatal flaw of this approach is:
[0016] b) Before the complex intersection, the driver is in the car, it is difficult to quickly compare the actual geographic environment with the simple Figure 1 to make a judgment;
[0017] c) On high-grade roads, viaduct entrances or overpass entrances, the speed of the vehicle is often relatively fast, and the driver does not have time to make judgments based on the screen, resulting in driving on the wrong road

Method used

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

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Embodiment Construction

[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. I...

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PUM

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Abstract

A speech navigation method of the vehicle's satellite navigation system for the complex cross of road includes inputting the start position and destination to the system by user, choosing the optimal path on a digital navigatino map, receiving GPS signals to determine the current position on said digital map, and speech prompting of the running direction at complex cross when the distance threshold of speech prompting reaches.

Description

Technical field: [0001] The invention relates to a vehicle satellite navigation system, and more particularly relates to a voice navigation method of the vehicle satellite navigation system at complex intersections. Background technique: [0002] The so-called complex crossing in the present invention refers to the crossing that only prompts "turn left" and "turn right" at the crossing and cannot determine which road to refer to. The so-called general crossing in the present invention refers to the crossing that can correctly guide the advancing direction as long as "turn left" and "turn right" are prompted. With the civilianization of global satellite positioning technology and the rapid development of the automobile industry, more and more companies are investing in the development of vehicle satellite navigation systems, and voice navigation is one of the must-choice solutions for each company. Voice prompts "turn left" and "turn right" guide the direction forward. But ...

Claims

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Application Information

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IPC IPC(8): G01C21/26
Inventor 魏兴涛朱书成
Owner 深圳市易凯数码有限公司
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