Search method of intersection
A technology of intersection and search method, which is applied in the field of intersection search on navigation equipment, can solve problems such as a lot of troubles and inconvenience for users to use, and achieve the effect of convenient use.
Inactive Publication Date: 2010-07-07
HUANDA COMPUTER (SHANGHAI) CO LTD
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Problems solved by technology
[0004] If the user already knows the names of the two roads at the intersection they want to find, or even only remembers part of the names of the two roads at the intersection, it will take a lot of trouble to search in this way, and it is inconvenient for the user to use
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[0017] see figure 1 , figure 1 It is a method flow chart of a preferred embodiment of the intersection search method of the present invention.
[0018] The search method of intersection of the present invention, this method is applied on a navigation equipment, and is based on a map database, and this navigation equipment comprises a central processing unit and a display unit, in this embodiment, the search method of this intersection comprises:
[0019] The central processing unit receives input of a first keyword and a second keyword, wherein the first keyword and the second keyword are all or part of the name of the first road and the second road, and the first road and the name of the second road The second road is two roads (step 100) that want to search intersection;
[0020] The central processing unit determines a primary keyword and a secondary keyword from the first keyword and the second keyword, and obtains a road name candidate set matched with the primary keywo...
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The invention discloses a search method of an intersection, which is applied to a navigation device comprising a central processing unit and a display unit, is based on a map database, and comprises the following steps that: a first key word and a second key word are input into the central processing unit, wherein the first key word and the second key word are of all or part of names of a first road and a second road, and the first road and the second road are the two roads of an intersection to be searched; the central processing unit determines a primary key word and a secondary key word from the first key word and a second key word and obtains a candidate set of road names matched with the primary key word; and the central processing unit transverses all the names of the other roads of the intersection in the candidate set of road names in the map database, and matches all the names of the other roads with the secondary key word so as to obtain a candidate set of the intersection displayed on the display unit.
Description
【Technical field】 [0001] The invention provides a search method for an intersection, in particular to a search method for an intersection on a navigation device. 【Background technique】 [0002] When using a GPS navigation device, when searching for an intersection, the user must first enter the keyword of the road name, search for a candidate list of roads through the keyword, and then click on one of the roads to get all the roads that intersect with the road list, and the user finds the road he wants in the list to obtain intersection information. [0003] For example, if the intersection the user wants to find is "Wenshui Road, Yuanping Road", he first inputs "Wenshui" as a keyword to get a list of roads containing "Wenshui". Then find out "Wenshui Road" from the list, and click to get all the roads that intersect with "Wenshui Road". Since "Wenshui Road" is very long, there may be more than a dozen or more roads that intersect with it. Navigation equipment The number o...
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IPC IPC(8): G01C21/30G06F17/30
Inventor 韦礼珍
Owner HUANDA COMPUTER (SHANGHAI) CO LTD