Search device and search method of geographical coordinates

A technology of geographic coordinates and search methods, applied in the field of geographic coordinate search devices, can solve problems such as poor search speed and accuracy, multiple manual interventions, and multiple queries, so as to reduce the number of queries, improve speed and accuracy, and reduce labor costs. The effect of the intervention

Inactive Publication Date: 2008-09-24
HUANDA COMPUTER (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The currently implemented method mainly relies on searching the text information of the address of the target location to search for the geographic coordinates of the target location. However, this method requires more queries and more manual intervention, and the search speed and accuracy are not good.

Method used

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  • Search device and search method of geographical coordinates
  • Search device and search method of geographical coordinates
  • Search device and search method of geographical coordinates

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Experimental program
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Embodiment Construction

[0013] Referring to Fig. 1, the search device 200 for geographic coordinates of the present invention is suitable for use in a navigation device 100 to query the geographic coordinates of a searched address, and a storage module 300 is provided in the navigation device 100, and in the storage module 300 An area code database 31 and a map information database 32 are provided, and the map information database 32 and the area code database 31 are mutually mapped, and the geographical coordinates of the checked address are stored in the map information database 32; and the search device 200 includes An information input module 21, it is in order to obtain the area code (area code can be zip code or area code) and text information of the checked address; The area coding of the address is searched in the map information database 32 to obtain the map area of ​​the checked address; the information input module 21 and the area positioning module 22 are all coupled with a precise query m...

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Abstract

The invention provides a searching device and searching method for geographic coordinates, which is suitable for searching geographic coordinate of a searched address from a navigation device. The navigation device is provided with a regional coding database and a map information database, and the map information database is mutually mapped with the regional coding database. The searching device includes an information input module, a region locating module and an accurate search module. The searching method is achieved through the searching device and includes the following steps: region coding of the searched address is received by the information input module; according to the region coding of the searched address, the map region of the searched address can be searched by the region locating module; the text information of the searched address can be received by the information input module; and according to the text information of the searched address, the geographic coordinate of the searched address can be searched within the map region of the searched address by the accurate search module. The searching range is limited and shrunk through the region coding to increase the searching speed and precision.

Description

【Technical field】 [0001] The invention provides a geographic coordinate search device and a search method, in particular a geographic coordinate search device and a search method that can improve search speed and accuracy. 【Background technique】 [0002] In GPS / GIS software, obtaining the corresponding geographic coordinates through the address of the target location (such as the house number) is a key step in realizing navigation. There are two unavoidable problems in the process of obtaining geographic coordinates: [0003] 1. It is necessary to quickly find the target location expected by the user through the text information of the address of the target location in the mass data. [0004] 2. There are a lot of identical and similar address information in massive data, how to find the target location expected by the user in preparation. [0005] The currently implemented method mainly relies on searching the text information of the address of the target location to sear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00
Inventor 吴边
Owner HUANDA COMPUTER (SHANGHAI) CO LTD
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