CN102340536A - Method and device for searching points of interest - Google Patents
Method and device for searching points of interest Download PDFInfo
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- CN102340536A CN102340536A CN201110196240XA CN201110196240A CN102340536A CN 102340536 A CN102340536 A CN 102340536A CN 201110196240X A CN201110196240X A CN 201110196240XA CN 201110196240 A CN201110196240 A CN 201110196240A CN 102340536 A CN102340536 A CN 102340536A
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Abstract
The invention discloses a method and device for searching points of interest (POI), which relates to a Web geographic information system and is used for solving the problem of slow response or collapse of a client display interface caused by large amount of POI data. The method for searching points of interest provided by the invention comprises the following steps of: receiving a first request message sent by a client, wherein the first request message comprises a POI type; searching POI information meeting the POI type in the first request message and generating a POI picture according to the POI information, wherein the POI information is marked on the POI picture; and sending the POI picture to the client so that the POI picture is overlapped on a basic map interface to display the POI information by the client. The method and device for searching points of interest disclosed by the invention are suitable for search in sight on a Web map.
Description
Technical field
The present invention relates to the Web GIS-Geographic Information System, relate in particular to a kind of method and device of realizing the point of interest search.
Background technology
Along with development of internet technology, made things convenient for user's trip to a great extent based on the map search service of Web.In recent years, along with the proposition of Ajax (asynchronous call does not promptly influence request server resource under the page operation situation) technology, be greatly improved from performance based on the map search service of Web.In based on the map search service of Web, using a more service is POI in the visual field (Point Of Interest, point of interest) search.POI search is meant that the map confirmed the user within sweep of the eye, searches for the POI (like types such as hotel, restaurants) of a certain particular type in the visual field, and Search Results is marked on map to present to the user; When the map visual field changed, said Search Results was also along with change.
In realizing process of the present invention; The inventor finds to have following problem in the prior art at least: when map when the data volume of POI is big within sweep of the eye; Response slowly in the time of can causing client on display interface, to mark POI information; Make the user wait for the long period, even the POI data volume can cause the collapse of client display interface when excessive.
Summary of the invention
Embodiments of the invention provide a kind of method and device of realizing point of interest search, under the bigger situation of POI data volume that current map shows within sweep of the eye, can show POI information within the vision more efficiently, make the user obtain better experience.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of method that realizes the point of interest search comprises:
Receive first request message that client is sent, said first request message comprises the POI type;
Search the POI information that meets POI type described in said first request message, and generate the POI picture according to said POI information, said POI picture subscript is marked with said POI information;
Said POI picture is sent to said client, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
A kind of realization point of interest searched devices comprises:
First receiver module is used to receive first request message that client is sent, and said first request message comprises the POI type;
Processing module is used to search the POI information that meets POI type described in said first request message, and generates the POI picture according to said POI information, and said POI picture subscript is marked with said POI information;
First sending module is sent to said client with said POI picture, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
The method and the device of the realization point of interest search that the embodiment of the invention provides; Behind first request message that receives the client transmission; Search the POI information that meets said first request message; And, said POI picture is sent to client shows to be superimposed on the basic map interface according to said POI information generation POI picture.Compared with prior art, adopt the embodiment of the invention POI information that the video data amount is bigger more efficiently, avoid wait or the excessive client display interface collapse that causes of data volume of user's long period, make the user obtain better experience.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The method flow sketch map that Fig. 1 provides for the embodiment of the invention 1;
The method flow sketch map that Fig. 2 provides for the embodiment of the invention 2;
The apparatus structure sketch map that Fig. 3, Fig. 4, Fig. 5 provide for the embodiment of the invention 3.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Embodiment 1
The embodiment of the invention provides a kind of method of the POI of realization search, and as shown in Figure 1, said method comprises:
101, WMS (Web Map Service, network map service) service end receives first request message that client is sent, and said first request message comprises the POI type.
Wherein, said client can be a browser, also can be the application program that is used to carry out the POI search, does not do qualification here.Said first request message is that said client is indicated transmission according to the user, and said POI type can be hotel, restaurant, gas station etc., does not do qualification here.
102, said WMS server side searches meets the POI information of POI type described in said first request message, and generates the POI picture according to said POI information, and said POI picture subscript is marked with said POI information.
103, said WMS service end is sent to said client with said POI picture, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
Wherein, comprise Back ground Informations such as street, sub-district, park in the said basic map, its indication range is set by the user.
The method of the realization POI search that the embodiment of the invention provides; Behind first request message that receives the client transmission; Search the POI information that meets said first request message; And, said POI picture is sent to client shows to be superimposed on the basic map interface according to said POI information generation POI picture.Compared with prior art, adopt the embodiment of the invention POI information that the video data amount is bigger more efficiently, avoid wait or the excessive client display interface collapse that causes of data volume of user's long period, make the user obtain better experience.
The embodiment of the invention provides a kind of method of the POI of realization search, and as shown in Figure 2, said method comprises:
201, client sends a request message to obtain basic map information to the basic map server according to user's indication, comprises the basic map parameter that the user selects in the described request message, the city of selecting like the user, field range etc.
Wherein, said basic map server belongs to webserver side, is used for to said client basic map information being provided.
202, said basic map server receives described request message, confirm with described request message in the corresponding basic map information of basic map parameter, and said basic map information returned to said client show.
Wherein, said basic map information comprises the essential information within the vision that the user selects, and like street, sub-district, park etc., does not do qualification here.
203, said client receives said basic map information, and said basic map information is shown on the said client display interface.
204, the user selects the POI type that will search for, sends first request message through said client to the WMS service end, comprises information such as POI type that said user selects, field range, picture format, coordinate system parameter in said first request message.
Wherein, comprise the POI database in the said WMS service end, said POI database is used to provide the POI information of each type and the relevant information of each POI.
205, said WMS service end receives first request message that said client is sent, and searches corresponding POI information according to said first request message, and generates corresponding POI picture according to said POI information, and said POI picture subscript is marked with said POI information.
Concrete, said first request message of said WMS server parses obtains information such as said POI type, field range, picture format, coordinate system parameter, wherein:
Said POI type is used to characterize the user and wants the ground vertex type searched for, for example hotel, restaurant, parking lot etc.;
Said field range is used for confirming the indication range of said POI picture;
Said picture format is used for confirming the picture format of said POI picture;
The coordinate system that said coordinate system parameter adopts when being used for confirm generating said POI picture, for example: WGS84 coordinate system, Beijing 54 coordinate systems etc., do not do qualification here.
206, said WMS service end is sent said POI pictorial information to said client.
Worth explanation, said step 205, step 206 can realize through the GetMap interface of said WMS service end, but be not limited only to this.
207, said client receives said POI pictorial information, resolves to obtain said POI picture, said POI picture is superimposed on the client display interface, to show said POI information to the user.
208, user select target POI on said client display interface sends second request message through said client to said WMS service end, comprises target P OI sign in said second request message.Wherein, said target P OI can be one, also can be a plurality of, does not limit here.
209, said WMS service end receives said second request message, search with said second request message in the relevant information of the corresponding target P OI of target P OI sign.
Concrete, the relevant information of said target P OI comprises the better address of said target P OI, telephone number, business hours etc., is not limited only to this.
210, said WMS service end is carried out preliminary treatment through the GetFeatureInfo data-interface to the relevant information of said target P OI, makes it the map metadata of using for ease of interface.
Concrete, said relevant information to said target P OI is carried out preliminary treatment and is comprised that the relevant information with said POI converts the data message that meets the GIS data format into; Perhaps
The relevant information of said POI is imported said POI database so that said client is obtained POI information, and said POI database has the spatial geography data expansion module.
211, said WMS service end is sent said map metadata to said client.
212, said client receives the map metadata that said WMS service end is returned, and said map metadata is resolved the relevant information of obtaining said target P OI, and at said client display interface the relevant information of said target P OI is presented to the user.
What be worth explanation is that when the map field range of said client display interface demonstration changed, said WMS service end can generate the POI picture corresponding with current map field range and send to said client and show.
The method of the realization POI search that the embodiment of the invention provides; Compared with prior art; Through generating the POI picture showing POI information, thereby the POI information that the video data amount is bigger is more efficiently avoided wait or the excessive client display interface collapse that causes of data volume of user's long period; On the other hand, the relevant information according to second request message of client transmission is searched the target P OI of user's selection to filter out garbage, reduces the transmission quantity of POI data, thereby alleviates the load of said WMS service end and said client.
Embodiment 3
The embodiment of the invention provides a kind of realization POI searched devices, can realize the method for WMS service end among the said method embodiment, and as shown in Figure 3, said device comprises:
First sending module 303 is used for the POI picture that said processing module 302 generates is sent to said client, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
Concrete, also comprise field range, picture format, coordinate system parameter in first request message that said receiver module 301 receives; Wherein,
Said field range is used for confirming the indication range of said POI picture;
Said picture format is used for confirming the picture format of said POI picture;
Said coordinate system parameter is used for confirming the coordinate system that said processing module 302 adopts when generating said POI picture.
Further, as shown in Figure 4, said device also comprises second receiver module 304, searches module 305, second sending module 306, wherein:
Said second receiver module 304 is used to receive second request message that client is sent, and comprises target P OI sign in said second request message, and said target P IO is selected on said POI picture by the user;
The said module 305 of searching is used to search the relevant information that identifies corresponding target P OI with said target P OI;
Said second sending module 306 is used for relevant information with said target P OI and is sent to said client and shows.
Further, as shown in Figure 5, said device also comprises pretreatment module 307, and said pretreatment module 307 comprises first pretreatment unit 3071 and/or second pretreatment unit 3072, wherein:
Then said second sending module 306 is used for that also the map metadata that said pretreatment module 307 generates is sent to said client and shows.
Concrete, said first pretreatment unit 3071 is used for converting the relevant information of said POI into meet GIS (GIS-Geographic Information System) data format data message;
Said second pretreatment unit 3072 is used for the relevant information of said POI is imported the POI database, and said POI database has the spatial geography data expansion module.
The realization POI searched devices that the embodiment of the invention provides; Compared with prior art; Through generating the POI picture showing POI information, thereby the POI information that the video data amount is bigger is more efficiently avoided wait or the excessive client display interface collapse that causes of data volume of user's long period; In addition, the relevant information according to second request message of client transmission is searched the target P OI of user's selection to filter out garbage, reduces the transmission quantity of POI data, thereby alleviates the load of said WMS service end and said client.
Through the description of above execution mode, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of said claim.
Claims (10)
1. a method that realizes the point of interest search is characterized in that, comprising:
Receive first request message that client is sent, said first request message comprises POI (point of interest) type;
Search the POI information that meets POI type described in said first request message, and generate the POI picture according to said POI information, said POI picture subscript is marked with said POI information;
Said POI picture is sent to said client, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
2. method according to claim 1 is characterized in that, said first request message also comprises field range, picture format, coordinate system parameter;
Wherein, said field range is used for confirming the indication range of said POI picture;
Said picture format is used for confirming the picture format of said POI picture;
The coordinate system that said coordinate system parameter adopts when being used for confirm generating said POI picture.
3. method according to claim 1 is characterized in that, said said POI picture is sent to said client, and said POI picture is superimposed on the basic map interface to show that after the said POI information, said method also comprises:
Receive second request message that client is sent, comprise target P OI sign in said second request message, said target P IO is selected on said POI picture by the user;
Search the relevant information of the target P OI corresponding with said target P OI sign;
The relevant information of said target P OI is sent to said client to be shown.
4. method according to claim 3 is characterized in that, after said relevant information of searching the target P OI corresponding with said target P OI sign, said method also comprises:
Relevant information to said POI is carried out preliminary treatment, generates the map metadata of being convenient to transmit;
Then said relevant information with said target P OI is sent to said client and shows and comprise:
Said map metadata is sent to said client to be shown.
5. method according to claim 4 is characterized in that, said relevant information to said POI is carried out preliminary treatment and comprised:
Convert the relevant information of said POI into meet GIS (GIS-Geographic Information System) data format data message; Perhaps
The relevant information of said POI is imported the POI database, and said POI database has the spatial geography data expansion module.
6. realize the point of interest searched devices for one kind, it is characterized in that, comprising:
First receiver module is used to receive first request message that client is sent, and said first request message comprises POI (point of interest) type;
Processing module is used to search the POI information that meets POI type described in said first request message, and generates the POI picture according to said POI information, and said POI picture subscript is marked with said POI information;
First sending module is sent to said client with said POI picture, so that said client is superimposed on the basic map interface said POI picture to show said POI information.
7. device according to claim 6 is characterized in that, also comprises field range, picture format, coordinate system parameter in first request message that said receiver module receives; Wherein,
Said field range is used for confirming the indication range of said POI picture;
Said picture format is used for confirming the picture format of said POI picture;
Said coordinate system parameter is used for confirming the coordinate system that said processing module adopts when generating said POI picture.
8. device according to claim 6 is characterized in that, said device also comprises:
Second receiver module is used to receive second request message that client is sent, and comprises target P OI sign in said second request message, and said target P IO is selected on said POI picture by the user;
Search module, be used to search the relevant information of the target P OI corresponding with said target P OI sign;
Second sending module is used for relevant information with said target P OI and is sent to said client and shows.
9. device according to claim 8 is characterized in that, said device also comprises:
Pretreatment module is used for the relevant information of said POI is carried out preliminary treatment, generates the map metadata of being convenient to transmit;
Then said second sending module is used for that also the map metadata that said pretreatment module generates is sent to said client and shows.
10. device according to claim 9 is characterized in that, said pretreatment module comprises:
First pretreatment unit is used for converting the relevant information of said POI into meet GIS (GIS-Geographic Information System) data format data message; And/or
Second pretreatment unit is used for the relevant information of said POI is imported the POI database, and said POI database has the spatial geography data expansion module.
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