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Method and device for electronic map keywords search for satellite navigation

An electronic map and satellite navigation technology, applied in the directions of road network navigator, electric digital data processing, special data processing applications, etc., can solve the problems of not meeting the retrieval needs of consumers, not having map information retrieval, and inconvenient destination search. , to achieve the effect of improving retrieval efficiency and ease of use, improving intuition and simple structure

Inactive Publication Date: 2007-03-07
江苏华科导航科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above-mentioned existing navigation equipment is that it does not have the function of map information retrieval, which brings inconvenience to the destination search
[0009] The disadvantage of the above-mentioned existing map information retrieval method is that it cannot meet consumers' retrieval needs for various service information, such as food, clothing, housing, transportation, work, study, leisure and entertainment in people's lives. On the one hand, it cannot be combined with satellite navigation or satellite positioning equipment to play a navigation role while retrieving consumer service items and locations to meet the various needs of users

Method used

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  • Method and device for electronic map keywords search for satellite navigation

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Embodiment 1

[0023] Realize the electronic map key word retrieval method that is used for satellite navigation of the present embodiment, comprise the steps:

[0024] a. The user inputs keywords to be retrieved through the touch screen 2 of the navigator, and selects the category of keywords and the geographical range to be retrieved, and then the central processing unit 1 performs retrieval in the storage unit 3 . When setting the search range, you can choose to search for an administrative division or the distance range from the current geographic location. When searching, the user can choose one of the exact search method and the fuzzy search method.

[0025] b. When the keyword category selected by the user is the service consumption category, the touch screen 2 displays the service institutions, locations and their positions on the electronic map, corresponding Fees and service quality information.

[0026] For example: choose to search in "Changzhou City, Jiangsu Province", and the...

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Abstract

This invention relates to one satellite navigation electronic map keyword research method and device, wherein the method comprises the following steps: user inputting keywords through touch screen and selecting keyword type and geography scope; then researching in the memory unit by CPU, wherein the said keyword includes people life aspects, such as food, clothes, work and study; after researching, the screen displaying the relative items to the keywords and marking out the position information on the electronic map.

Description

technical field [0001] The invention relates to an electronic map keyword retrieval method and device for satellite navigation. Background technique [0002] In the prior art, car navigation is realized in two ways: car autonomous navigation and service center assisted navigation. In the vehicle autonomous navigation method, sensors or positioning equipment are used to continuously calculate the displacement of the vehicle relative to the initial position, and the map information is loaded in the vehicle in advance, and the map matching technology is used to realize autonomous navigation. The service center assisted navigation is to navigate the driving vehicle according to the collected road condition information by the service center. [0003] Chinese patent document CN1417708 published on May 14, 2003 relates to an electronic map device used in a car satellite navigation system. Using semiconductor storage media devices as high-speed storage media, adopting inary data (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/26G01C21/30G01C21/36G06F17/30
Inventor 秦春达李晓华
Owner 江苏华科导航科技有限公司
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