CN107621268A - One kind navigation interest point search method and device - Google Patents
One kind navigation interest point search method and device Download PDFInfo
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- CN107621268A CN107621268A CN201710775103.9A CN201710775103A CN107621268A CN 107621268 A CN107621268 A CN 107621268A CN 201710775103 A CN201710775103 A CN 201710775103A CN 107621268 A CN107621268 A CN 107621268A
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Abstract
The present invention, which provides navigation interest point search method and device, method, to be included：S1, the current location information for obtaining vehicle；S2, range of search request in destination is produced by the current location information；S3, the administrative area coding according to corresponding to destination range of search request is read from map data base；S4, judge whether the administrative area coding is effective administrative area coding, be then to enter S6, otherwise enter in next step；S5, by the administrative area encoding setting for acquiescence administrative area coding；S6, by the current location information and the administrative area coding be saved in subscriber data file；S7, the interest point search request for receiving user's input；S8, carry out interest point search in administrative area according to corresponding to the retrieval request in administrative area coding；S9, display interest point search result.The present invention improves navigation system retrieval stability.
Description
Technical field
The present invention relates to vehicle mounted guidance technical field, more particularly to a kind of navigation interest point search method and device.
Background technology
In-vehicle navigation apparatus can realize that the driving of complex course is guided, and greatly facilitate the trip of people.Vehicle mounted guidance
Equipment is typically made up of locating module, navigation engine, the several parts of map datum.Locating module is used to obtain in-vehicle navigation apparatus
Current location information, usually longitude and latitude, navigation engine is after the current location information of locating module is received, by itself and ground
Diagram data is matched, so as to be shown as the location of in-vehicle navigation apparatus title (such as Tian An-men), commonly referred to as POI
(Point ofInterest, point of interest).POI is typically related to administrative area, that is to say, that identical POI there may be with it is more
In individual administrative area, therefore, in-vehicle navigation apparatus can obtain working as in-vehicle navigation apparatus first when retrieving the POI of user's input
Administrative area coding where the information of front position.
Under normal circumstances, the administrative area coding where current location information can be obtained when retrieving POI, but at vehicle
In some specific positions, such as sea, the island without section, way less harbour, plus the error of locating module, car can be caused
Carry navigation equipment retrieve user input POI when can not obtain the current location information of in-vehicle navigation apparatus where administrative area
Coding, if retrieved using " current region ", can cause in-vehicle navigation apparatus to crash, and restarting vehicle mounted guidance system
It still can not be used after system, cause Consumer's Experience poor.
Therefore, prior art is further improved.
The content of the invention
The present invention provides a kind of navigation interest point search method and device, it is intended to the defects of solving in the prior art, improves
Navigation system retrieves stability.
To reach above-mentioned purpose, the technical solution used in the present invention is：
One aspect of the present invention provides a kind of navigation interest point search method, including：
S1, the current location information for obtaining vehicle；
S2, range of search request in destination is produced by the current location information；
S3, the administrative area coding according to corresponding to destination range of search request is read from map data base；
S4, judge whether the administrative area coding is effective administrative area coding, be then to enter S6, otherwise enter in next step；
S5, by the administrative area encoding setting for acquiescence administrative area coding；
S6, by the current location information and the administrative area coding be saved in subscriber data file；
S7, the interest point search request for receiving user's input；
S8, carry out interest point search in administrative area according to corresponding to the retrieval request in administrative area coding；
S9, display interest point search result.
Further, also include after S4：
S41, centered on the current location information, pre-determined distance is retrieved in the hunting zone of radius；
S42, judge to whether there is MESH in the hunting zone, then entered in next step, otherwise into S5；
S43, traversal each MESH administrative area point column information, obtain each administrative area shape；
S44, traversal each administrative area shape, obtain row corresponding to the administrative area nearest apart from the current location information
Administrative division encodes.
Specifically, the S41 includes：
S411, the lower-left upper right scope for calculating the current location；
S412, the common factor rectangle for taking the lower-left upper right scope and map datum；
S413, MESH information whether there is with the retrieval of the first index range in the common factor rectangle, is then to enter S43,
Otherwise enter in next step；
S414, MESH information whether there is with the retrieval of the second index range in the common factor rectangle, is then to enter S43,
Otherwise enter in next step；
S415, MESH information whether there is with the retrieval of the 3rd index range in the common factor rectangle, is then to enter S43,
Otherwise S5 is entered.
Specifically, first index range is 4 nautical miles, and second index range is 8 nautical miles, the 3rd index model
Enclose is 12 nautical miles.
Specifically, the current location information is the longitude and latitude of current location.
Another aspect of the present invention provides a kind of navigation interest point search device, including locating module, retrieval mode selection mould
Block, range of search request module, map data base, administrative area coding read module, administrative area coding judge module, administrative area are compiled
Code setup module, customer data base, point of interest input module, search engine module, retrieval display module；
The locating module, for obtaining current location information；
The retrieval mode selecting module, for selecting retrieval mode；
The range of search request module, asked for producing destination range of search by the current location information；
The map data base, for storing navigation map data；
The administrative area encodes read module, is read for the interest point search range of requests from map data base pair
The administrative area coding answered；
The administrative area encodes judge module, for judging whether administrative area coding is effective；
The administrative area encoding setting module, for being acquiescence administrative area coding by administrative area encoding setting；
The customer data base, for storing subscriber data file；
The point of interest input module, for inputting the title of point of interest；
The search engine module, for carrying out interest point search according to retrieval request；
The retrieval display module, for showing interest point search result.
Further, in addition to in the range of preset search carry out administrative area retrieval administrative area search module.
The beneficial effects of the present invention are：When the present invention is by judging that the administrative area of current location information is encoded to invalid,
Administrative area coding will be given tacit consent to be written in EDB files, then carrying out interest in administrative area corresponding to the coding of acquiescence administrative area
Point retrieval, avoid because navigation system is collapsed caused by when administrative area is encoded to invalid, it is steady to improve navigation system retrieval
It is qualitative.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the navigation interest point search method of the present invention；
Fig. 2 is the search interface schematic diagram of the point of interest inquiry of the present invention；
Fig. 3 is the search interface schematic diagram using current region of the present invention；
Fig. 4 is another schematic flow sheet of the navigation interest point search method of the present invention；
Fig. 5 is the structural representation of the navigation interest point search device of the present invention；
Fig. 6 is another structural representation of the navigation interest point search device of the present invention.
Embodiment
Specifically illustrate embodiments of the present invention below in conjunction with the accompanying drawings, accompanying drawing is only for reference and explanation uses, and does not form pair
The limitation of scope of patent protection of the present invention.
Embodiment 1：
As shown in figure 1, the present embodiment provides a kind of navigation interest point search method, including：
Step 1, the current location information for obtaining vehicle.
In onboard navigation system, current location information is typically obtained by navigation positioning module, data can also be passed through
The means auxiliary positioning of network.
The current location information mainly includes the longitude and latitude of current location, can also include height.
Step 2, range of search request in destination is produced by the current location information.
In onboard navigation system, there is provided destination to retrieve module, a search interface is typically shown as, in the retrieval
Include the icon of a variety of retrieval species, such as " point of interest inquiry " icon, " classified inquiry " icon etc. on interface, can be according to reality
Using being configured.It is divided into multiple retrieval information input modes, such as " point of interest inquiry " retrieval species under each retrieval species again
Just there is " using current region " button down, user determines the destination range of search of vehicle often through clicking on, such as
Fig. 2, shown in 3.
Step 3, the administrative area coding according to corresponding to destination range of search request is read from map data base.
Map data base contains the interest point information in each administrative area, and these points of interest all associate with administrative area coding.
For example, " Sheraton Hotel " both may be in Huizhou City, it is also possible in Guangzhou.
The administrative area coding, which is, to be provincial, city-level, counties and districts' level, and it has uniqueness, navigation engine root in map
Retrieval and inquisition is carried out according to the administrative area coding of map datum.
Step 4, judge whether the administrative area coding is effective administrative area coding, be then to enter step 6, under otherwise entering
One step.
In the specific implementation, if the flag bit of administrative area coding is 0, the administrative area is encoded to invalid administrative area and compiled
Number.
Step 5, by the administrative area encoding setting for acquiescence administrative area coding.
In the specific implementation, administrative area corresponding to the coding of the acquiescence administrative area can be pre-set, such as Beijing, also may be used
To allow user voluntarily to specify administrative area corresponding to conventional administrative area coding, such as reported in Tianhe district of Guangzhou.
Step 6, by the current location information and the administrative area coding be saved in subscriber data file.
In the specific implementation, the subscriber data file is EDB files, and EDB is End User Databae abbreviation, meaning
That is end-user database, it is a part for map datum library file, for preserving user data, as information-setting by user,
Current administrative region, device parameter etc..
Step 7, the interest point search request for receiving user's input.
Step 8, carry out interest point search in administrative area according to corresponding to the retrieval request in administrative area coding.
Step 9, display interest point search result.
When the administrative area for judging current location information is encoded to invalid, administrative area coding will be given tacit consent to and be written to EDB texts
In part, interest point search then is being carried out in administrative area corresponding to the coding of acquiescence administrative area, is being avoided because administrative area is encoded to
Navigation system is collapsed caused by when invalid.
Embodiment 2：
As shown in figure 4, as different from Example 1, also include after step 4：
Step 41, centered on the current location information, pre-determined distance is retrieved in the hunting zone of radius.
Step 42, judge to whether there is MESH in the hunting zone, then entered in next step, otherwise into step 5；
MESH is the implication of map cut zone, is by a series of networking is formed in border grid.
The administrative area point column information of step 43, traversal each MESH, obtains each administrative area shape.
Step 44, traversal each administrative area shape, it is corresponding to obtain the administrative area nearest apart from the current location information
Administrative area coding.
In the present embodiment, the step 41 includes：
Step 411, the lower-left upper right scope for calculating the current location.
Step 412, the common factor rectangle for taking the lower-left upper right scope and map datum.
Step 413, MESH information whether there is with the retrieval of the first index range in the common factor rectangle, be then to enter step
Rapid 43, otherwise enter in next step.
Step 414, MESH information whether there is with the retrieval of the second index range in the common factor rectangle, be then to enter step
Rapid 43, otherwise enter in next step.
Step 415, MESH information whether there is with the retrieval of the 3rd index range in the common factor rectangle, be then to enter step
Rapid 43, otherwise into step 5.
In the present embodiment, first index range is 4 nautical miles, and second index range is 8 nautical miles, the described 3rd
Index range is 12 nautical miles.
Embodiment 3：
As shown in figure 5, another aspect of the present invention provides a kind of navigation interest point search device, including locating module, retrieval
Mode selecting module, range of search request module, map data base, administrative area coding read module, administrative area coding judge mould
Block, administrative area encoding setting module, customer data base, point of interest input module, search engine module, retrieval display module；
The locating module, for obtaining current location information；
The retrieval mode selecting module, for selecting retrieval mode；
The range of search request module, asked for producing destination range of search by the current location information；
The map data base, for storing navigation map data；
The administrative area encodes read module, is read for the interest point search range of requests from map data base pair
The administrative area coding answered；
The administrative area encodes judge module, for judging whether administrative area coding is effective；
The administrative area encoding setting module, for being acquiescence administrative area coding by administrative area encoding setting；
The customer data base, for storing subscriber data file；
The point of interest input module, for inputting the title of point of interest；
The search engine module, for carrying out interest point search according to retrieval request；
The retrieval display module, for showing interest point search result.
The course of work of navigation interest point search device of the present invention is：
First, locating module obtains the current location information of vehicle, and the current location information mainly includes current location
Longitude and latitude, can also include height.
Then, user by retrieval mode selecting module select " using current region ", range of search request module according to
The selection of user produces the request of destination range of search, and administrative area coding read module is asked according to the destination range of search
Administrative area coding corresponding to being read from map data base, administrative area encode judge module and administrative area coding are sentenced
It is disconnected, encoded if effective administrative area, then the current location information and administrative area coding are saved in customer data base,
Otherwise the administrative area encoding setting is encoded for acquiescence administrative area by administrative area encoding setting module, then this acquiescence is administrative
Area's coding is saved in customer data base.Point of interest input module receives the interest point search request of user's input, search engine
Module carries out interest point search according to corresponding to the retrieval request in administrative area coding in administrative area, is shown by retrieving
Module shows interest point search result.
Embodiment 4：
As shown in fig. 6, as different from Example 3, in addition to for carrying out administrative area retrieval in the range of preset search
Administrative area search module.
The course of work of the administrative area search module is：
Centered on the current location information, pre-determined distance to be retrieved in the hunting zone of radius, when in institute
State after retrieving MESH in hunting zone, travel through the administrative area point column information of each MESH, obtain each administrative area shape, then
Each administrative area shape is traveled through, administrative area corresponding to the administrative area nearest apart from the current location information is obtained and encodes；When
After not retrieving MESH in the hunting zone, administrative area encoding setting is acquiescence by notice administrative area encoding setting module
Administrative area encodes.
Above disclosed is only presently preferred embodiments of the present invention, it is impossible to the rights protection model of the present invention is limited with this
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (7)
1. one kind navigation interest point search method, it is characterised in that including：
S1, the current location information for obtaining vehicle；
S2, range of search request in destination is produced by the current location information；
S3, the administrative area coding according to corresponding to destination range of search request is read from map data base；
S4, judge whether the administrative area coding is effective administrative area coding, be then to enter S6, otherwise enter in next step；
S5, by the administrative area encoding setting for acquiescence administrative area coding；
S6, by the current location information and the administrative area coding be saved in subscriber data file；
S7, the interest point search request for receiving user's input；
S8, carry out interest point search in administrative area according to corresponding to the retrieval request in administrative area coding；
S9, display interest point search result.
2. navigation interest point search method according to claim 1, it is characterised in that also include after S4：
S41, centered on the current location information, pre-determined distance is retrieved in the hunting zone of radius；
S42, judge to whether there is MESH in the hunting zone, then entered in next step, otherwise into S5；
S43, traversal each MESH administrative area point column information, obtain each administrative area shape；
S44, traversal each administrative area shape, obtain administrative area corresponding to the administrative area nearest apart from the current location information
Coding.
3. navigation interest point search method according to claim 2, it is characterised in that the S41 includes：
S411, the lower-left upper right scope for calculating the current location；
S412, the common factor rectangle for taking the lower-left upper right scope and map datum；
S413, MESH information whether there is with the retrieval of the first index range in the common factor rectangle, be then to enter S43, otherwise
Into in next step；
S414, MESH information whether there is with the retrieval of the second index range in the common factor rectangle, be then to enter S43, otherwise
Into in next step；
S415, MESH information whether there is with the retrieval of the 3rd index range in the common factor rectangle, be then to enter S43, otherwise
Into S5.
4. navigation interest point search method according to claim 3, it is characterised in that first index range is 4 seas
In, second index range is 8 nautical miles, and the 3rd index range is 12 nautical miles.
5. navigation interest point search method according to claim 1, it is characterised in that the current location information is current
The longitude and latitude of position.
6. one kind navigation interest point search device, it is characterised in that including locating module, retrieval mode selecting module, retrieval model
Enclose request module, map data base, administrative area coding read module, administrative area coding judge module, administrative area encoding setting mould
Block, customer data base, point of interest input module, search engine module, retrieval display module；
The locating module, for obtaining current location information；
The retrieval mode selecting module, for selecting retrieval mode；
The range of search request module, asked for producing destination range of search by the current location information；
The map data base, for storing navigation map data；
The administrative area encodes read module, read from map data base for the interest point search range of requests corresponding to
Administrative area encodes；
The administrative area encodes judge module, for judging whether administrative area coding is effective；
The administrative area encoding setting module, for being acquiescence administrative area coding by administrative area encoding setting；
The customer data base, for storing subscriber data file；
The point of interest input module, for inputting the title of point of interest；
The search engine module, for carrying out interest point search according to retrieval request；
The retrieval display module, for showing interest point search result.
7. navigation interest point search device according to claim 6, it is characterised in that also include being used in preset search model
Enclose the administrative area search module of interior progress administrative area retrieval.
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