Navigation system, navigation method and device

A navigation method and a technology of a navigation device, applied in the field of navigation, can solve problems such as different degrees of information attention, the influence of scales, and different levels of content richness, and achieve the effects of ensuring driving safety, improving navigation efficiency, and enhancing navigation experience
CN103185600BActive Publication Date: 2017-11-28SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
Publication Date
2017-11-28

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Abstract

A navigation system, navigation method and device, wherein the navigation method includes: performing navigation path calculation based on a navigation request to obtain a guidance path; during the navigation process using the guidance path, detecting the distance between the current position and the next maneuvering intersection; The motorized intersection refers to a road intersection that matches the prompt information in the navigation process; obtain the distance represented by each screen pixel corresponding to the display scale of each level of the electronic map, so as to determine the possible distance ahead of the current position under each level of display scale Visual range: adjust the current display scale of the electronic map, so that the visible range adapts to the detected distance between the current position and the next maneuvering intersection. The technical solution of the invention can automatically adjust the display scale of the electronic map during the guidance process, so as to ensure that the next motor crossing can always be properly displayed within the visible range ahead of the current position.
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Description

technical field

[0001] The invention relates to the technical field of navigation, in particular to a navigation system, a navigation method and a device. Background technique

[0002] With the development of the automobile industry, people pay more and more attention to the user experience when using a car while owning a car. Existing in-vehicle devices can already provide users with many services, including services for multimedia needs such as music, video, and pictures, as well as driving navigation services such as real-time traffic information and destination maps. In particular, the use of vehicle navigation systems is becoming more and more popular. The voice prompts of the navigation system can guide the user to drive, especially when driving in an unfamiliar city, the navigation system can help the user to reach the destination conveniently and quickly.

[0003] Navigation electronic map (which can be referred to as electronic map or navigation map for short), als...

Claims

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