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Map data storage method, map data road retrieval method and vehicle system

A technology of map data and vehicle-mounted system, applied in the field of map data storage and retrieval, can solve problems such as difficulties and achieve the effect of convenient query

Active Publication Date: 2013-03-06
SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The name of an intersection is usually named by any two roads that form the intersection. Sometimes users only know the name of one road that forms the intersection. It is difficult for users to query other roads that form the intersection.

Method used

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  • Map data storage method, map data road retrieval method and vehicle system
  • Map data storage method, map data road retrieval method and vehicle system
  • Map data storage method, map data road retrieval method and vehicle system

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0041] figure 1 It is a schematic flow chart of an embodiment of the method for storing map data provided by the present invention, combined below figure 1 Detailed description.

[0042] S101. Establish and store a cross road set, where the cross road set includes main roads and intersec...

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Abstract

The invention relates to a map data storage method, a map data road retrieval method and a vehicle system. The map data storage method comprises the following steps: establishing and storing a cross road set, wherein the cross road set comprises main roads and crossroads formed by the main roads; and establishing and storing a crossroad set, wherein the cross crossing set comprises the crossroads and roads formed by the crossroads. The above technical scheme is convenient for query, and the queried crossroad set includes all the roads formed by the crossroads, so demands of a user are satisfied.

Description

technical field [0001] The invention relates to the field of storage and retrieval of map data, in particular to a method for storing map data, a method for retrieving roads, and a vehicle-mounted system. Background technique [0002] Cars have been used as people's daily means of transportation for more than 120 years. During this period, with the development of technology, cars have also undergone rapid changes. With the continuous development and progress of automobile technology, in-vehicle systems, as auxiliary products of automobiles, have gradually entered people's lives. The navigation function of the car map in the car system provides great convenience for car users to find roads and destinations. [0003] With the development of cities, urban roads also become intricate, and the number of intersections between roads not only increases, but also often occurs when several roads intersect at the same time to form an intersection. The name of the intersection is usua...

Claims

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Application Information

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IPC IPC(8): G01C21/32G01C21/34
Inventor 沙丹
Owner SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING CO LTD
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