WO2010063189A1

WO2010063189A1 - Method, client and server for providing position information

Info

Publication number: WO2010063189A1
Application number: PCT/CN2009/073786
Authority: WO
Inventors: 孙谦; 鲍洪庆
Original assignee: 华为技术有限公司
Priority date: 2008-11-19
Filing date: 2009-09-07
Publication date: 2010-06-10
Also published as: CN101742638A

Abstract

A method for providing position information, comprises: receiving the position translation request from the client, wherein the position translation request includes position information; querying stored correspondence data between position coordinates and civic addresses according to the position translation request, and translating the position information included in the translation request into the position information corresponding to the position coordinate or civic address; and returning a position translation response to the client, wherein the position translation response includes the translated position information corresponding to the position coordinate or the civic address. By providing position translation service, the embodiments of the present invention enable that the client need not store and update large amounts of correspondence data between position coordinates and civic addresses, and in addition, the complex position translation processes are all performed by the server as well. This manner is especially applicable to the mobile terminal which has limited computation ability and battery power.

Description

The present invention claims the priority of the Chinese Patent Application No. 200810217378.1, entitled "Method of Providing Location Information, Client and Server", which is filed on November 19, 2008. The entire contents are incorporated herein by reference. Technical field

The present invention relates to the field of location services, and more particularly to a method, client and server for providing location translation. Background technique

With the gradual popularization of terminals with positioning capabilities, the current location business is developing rapidly. In some standard organizations such as the Internet Engineering Task Force (IETF) and the Open Mobi le Al l iance (OMA), two types of location information are mainly used: Coordinates and city address.

Any point on the earth has its corresponding spatial coordinates. There are two kinds of spatial coordinates, one is the earth coordinate (also called geographic coordinate), and the latitude and longitude coordinates are used for positioning; the second is the projected coordinate, that is, the rectangular coordinate after the point on the earth surface is projected to the plane.

The Civic Address is a formatted text location information, as described in RFC 5139 for the format of city location information. City addresses can include location-related information fields such as countries, provinces (states), cities, administrative districts, streets, house numbers, landmarks, and zip codes. Alternatively, you can use a single-field text description to represent the city address, such as "Building 3, Nanwei New Software Park, High-tech Park, Nanshan District, Shenzhen, Guangdong, China." This is similar to a postal address and is more readable.

The inventor found in the process of implementing the present invention that only a single location information can be provided in the prior art, that is, only location coordinates are provided, or only city addresses are provided, and the user experience is poor. Summary of the invention

In view of this, the embodiment of the present invention provides a method for providing location information, so that a user can obtain location information through a location translation service.

The embodiment of the invention also proposes a client, by which the user can obtain location information through the location translation service.

The embodiment of the invention also proposes a server, which can provide a location translation service to a user. The technical solution proposed by the embodiment of the present invention is as follows:

A method of providing location information, the method comprising:

Receiving a location translation request sent by the client, where the location translation request includes location information; querying the corresponding relationship data between the stored location coordinates and the city address according to the location translation request, and translating the location information in the translation request into Location coordinates or locations corresponding to city addresses

^ I 自, .;

A location translation response is returned to the client, the location translation response including translated location information corresponding to the location coordinates or the city address.

A method of providing location information, including:

The client sends a location translation request, where the location translation request includes location information, and receives a location translation response returned by the server, where the location translation response includes location information corresponding to location coordinates or a city address, the location coordinate or city The location information corresponding to the address is obtained by the server by querying the corresponding relationship data of the stored location coordinates and the city address according to the location information in the location translation request.

A client that includes:

a location information translation requesting module, configured to send a location translation request, where the location translation request includes location information;

a location information receiving module, configured to receive a location translation response returned by the server, where the location translation response includes location information corresponding to location coordinates or a city address, and the location coordinates Or the location information corresponding to the city address is obtained by the server by querying the corresponding relationship data of the stored location coordinates and the city address according to the location information in the location translation request.

A server, comprising:

a message sending and receiving module, configured to receive a location translation request, and send a location translation response according to the location translation request, where the location translation request includes location information, where the location translation response includes location information corresponding to the location coordinate or the city address;

The location information translation processing module is configured to query the correspondence relationship data between the stored location coordinates and the city address according to the location information in the location translation request, and perform translation processing of the location information.

In the embodiment of the present invention, the client pre-stores the correspondence data between the location coordinates and the city address, and the client obtains the location translation result from the server by sending a location translation request through a hypertext transfer protocol (HTTP), so that the user or the application can Get the location information of the required type. By providing a location translation service, the client does not have to store and update a large number of correspondence data between location coordinates and city addresses, and complex location translation processing is also performed by the server, which is especially suitable for computing power and limited power. Mobile terminal use. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor. In the drawing:

FIG. 1 is a basic flowchart of providing location information according to an embodiment of the present invention;

2 is a flow chart of translating position coordinates into a city address according to an embodiment of the present invention; 3 is a flowchart of a process for a server to translate a latitude and longitude coordinate of a location information type as a point according to an embodiment of the present invention;

4 is a flowchart of a server performing translation processing on a latitude and longitude coordinate of a location information type as an area according to an embodiment of the present invention;

5 is a flow chart of translating from a city address to a location coordinate according to an embodiment of the present invention;

6 is a flowchart of a process of translating a city address whose location information type is formatted by a server according to an embodiment of the present invention;

7 is a schematic structural diagram of a client according to an embodiment of the present invention;

8 is a schematic structural diagram of a client according to an embodiment of the present invention;

9 is a schematic structural diagram of a server according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a system for providing location information according to an embodiment of the present invention. detailed description

In order to make the objects, the technical solutions and the advantages of the embodiments of the present invention more clearly, the embodiments of the present invention will be described in detail below. The illustrative embodiments of the present invention and the description thereof are intended to be illustrative of the invention, and are not intended to limit the invention.

Referring to FIG. 1, the figure is a basic flowchart of providing location information by a location translation service according to an embodiment of the present invention, including the following steps:

Step 101: The server receives a location translation request sent by the client, where the location translation request includes location information, and may further include a location type to which the location information belongs. The location translation request may be based on a hypertext transfer protocol such as an HTTP POST or GET request message, the request line or message body of the request message containing location information and location type.

Of course, the correspondence data between the location coordinates and the city address may be stored in advance, may be stored in the server, or may be stored in other places as long as the server can obtain it. The position coordinates in the stored data may be latitude and longitude coordinates or planes, projected coordinates, and the present invention suggests using latitude and longitude coordinates, which is highly versatile. The coordinate values can be in degrees and minutes or decimal values. Position In the correspondence data table between the target and the city address, each city address corresponds to a coordinate value of a point, or a coordinate description information of a region. The coordinates of the point are relatively simple, such as the latitude and longitude coordinates can be

( 22. 54423, 114. 057795 ). For the description of the coordinates of the region, the description of the shape such as a circle, an ellipse or a polygon may be in the format of the Geography Markup Language (GML) specified in the standards developed by the Open Geospatial Consortium (OGC). . For example, a circular area can be expressed by the latitude and longitude <pos> of the center and the radius <radius> of the circle as follows:

<Circle sr sName ⁼ urn: ogc: def: cr s: EPSG: : 4326"〉

<: radius uom ⁼ urn: ogc: def: uom: EPSG: : 9001"〉

1000

The correspondence data between the location coordinates and the city address is as follows:

The above is for example only, the data table can also contain other fields such as street, house number and other fields. The coordinates are generally stored in GML format, or directly include longitude and latitude fields, which are used to represent a point, or the center of the area (or any point in the area). The direct inclusion of longitude and latitude fields facilitates geographic location and retrieval queries.

The location type indicates whether the location information included is a location coordinate or a city address. More specifically, the shape type of the position coordinates, such as a point, a circle, or a polygon, is also indicated. In addition to the information in the GML format, the city address type can also use a text description of a single field, such as "B1, Putian Huawei Base, Longgang District, Shenzhen." This kind of text description is a kind of readable information, basically a description of natural language. Of course, although it is convenient for users to provide location information, it is for translation processing. The server needs to process the text description, extract the location information elements, and generate standardized location information fields in the GML format, such as country, province, city, etc., so as to be able to accurately perform translation processing. In the case of missing information, such as the above-mentioned example "Shenzhen Huawei Base B1" in Longgang District, Shenzhen, the lack of national and provincial information, when the server receives such location information, it can retrieve the corresponding missing information according to the information in the text description. The information, such as the information based on "Shenzhen City", can uniquely identify and retrieve the corresponding country and province information, namely "China Guangdong Province".

If the address cannot be uniquely determined according to the information in the text description, such as "Huawei" in the text description, when the translation process is performed, multiple matching addresses can be retrieved first. If the number of matches is too large, only the pre-fetch can be taken. Set the number of matching addresses. These matching city addresses are then translated, and the translated multiple location coordinates are returned to the client along with the corresponding city address. This allows users and applications to get more comprehensive and accurate location information, and choose one or more of the translation results as needed.

Step 102: The server returns a location translation response to the client, where the location translation response includes the translated location information. The server determines the translation result based on the stored correspondence data. If the location type in the request message is location coordinates, the location information in the translation result is a city address; if the location type is a city address, the location information in the translation result is location coordinates. The translated location information is returned in the HTTP 200 OK response message.

Another embodiment of the present invention specifically describes translating location coordinates into city addresses. Referring to Figure 2, the following steps are included:

Step 201: The client sends a location translation request message by using an HTTP/HTTPS POST request method. The location translation request includes location information whose location type is location coordinates. The specific request message is as follows:

POST https : //lts. example, com: 32328/location HTTP/1. 1

Accept: appl ication/ltp+xml, appl ication/xml; q=0. 8, text/xml; q=0. 7 Accept-Charset: UTF_8,

Content-Type: appl i cat i on/1 tp+xml

Content-Length: XXX

<?xml version 1.0"?>

<locationTranslation

Xmlns ⁼ urn: ietf: params: xml: ns: geopriv: ltp〃

< location prof ile= geodetic-2d >

The request <locationTranslation> contains latitude and longitude position information of a point, wherein

The attribute "profile" of the <location> element indicates that the position information is a two-dimensional position coordinate type, and the element ₀ 1^> further indicates that the position information is a shape type of a point. The type of the coordinate system is also specified in its property "srsName".

In the content type "Content-Type" header field of the message of the POST request method, the type of the message body is the location translation message format such as "application/ltp+xml".

Some landmark information is very useful for the user, so the user may include a landmark acquisition instruction in the submitted location translation request, and the city address information required for the server translation must include the landmark information field. If the landmark attribute landMark= "true" can be used as an indication in the <locationTranslation> element, then the city address in the response returned by the server must contain the <LMK> field. When the server performs translation processing, it is also possible to retrieve only the correspondence record data of the city address having the landmark information. You can also explicitly specify the type of location translation in the <locationTranslation> element with a translation type attribute such as "type". The server that receives the location translation request can perform translation processing according to the translation type attribute therein and generate a corresponding translation result. This allows for more types of translations in addition to mutual translation between location coordinates and city addresses. For example, from an IP address to a city address, here are some translation types:

Geocoding: Translate from city address to latitude and longitude coordinates.

reverseGeocoding: Translate from latitude and longitude coordinates to city address.

lampPostcodeToGeocode : Translate from lamppost number to latitude and longitude coordinates. It actually belongs to a subtype that translates from city address to latitude and longitude coordinates. Only the position translation request must contain the lamp post number. When the server processes the translation, it can ignore the address fields except the lamp post number, country and city.

geocodeToPostcode: Translate from latitude and longitude coordinates to zip code. It actually belongs to a subtype that translates from latitude and longitude coordinates to a city address, except that the translation result returned by the server can contain only the zip code.

geocodeToLandmark: Translate from latitude and longitude coordinates to a landmark. It actually belongs to a subtype that translates from latitude and longitude coordinates to a city address, except that the translation result returned by the server must contain landmark information. Common landmarks are some of the more famous attractions and iconic buildings.

Step 202: After receiving the location translation request, the server translates the location coordinate information therein. Since the server's database cannot store the location information of each point on the earth, it only records the correspondence between the latitude and longitude coordinates of some points and the city address. Therefore, when the server performs translation processing, it is first determined that the coordinate information in the location translation request is closer to the matching coordinates in the database. Then the city address corresponding to the matched coordinates is used as the translation result.

If the type of the location information in the location translation request is the latitude and longitude coordinates of the point, the server obtains the city address stored in the database closest to the point (named point A) by retrieval and calculation. For example, the city address stored in the database corresponds to the coordinate information stored. By calculating the distance between these coordinates and the coordinates of the point A in the position translation request, the database can be found closest. One or more city addresses. Some city addresses have position coordinates of the corresponding points, and the distance between the two points can be calculated. If the city address has a coordinate description of the corresponding area, it is judged whether the point A in the request falls within the area. If it falls within the area or its boundary, the distance is counted as zero, otherwise the calculation point A and the area boundary are the shortest. Distance, this shortest distance is used as the distance between point A and the city address. The server will use the city address with the smallest distance from point A as the translation result. The specific steps of the server for translating the latitude and longitude coordinates of the location information type into points are shown in FIG. 3, which mainly includes the following steps:

202-01. Obtain latitude and longitude coordinates of a point in the location translation request.

202-02. Obtain the city address closest to the point by searching and calculating. If the landmark information is required to be returned in the location translation request, only the closest distance is selected among the points corresponding to the city address with the landmark. Of course, in order not to make the deviation too large, it is possible that the nearest landmark is far away from the point in the request, and returning such a landmark is of little significance, it is possible to preset a range value such as 1000 meters, if the database is at the point 1000 meters There is no city address with a landmark, and there is no need to return landmark information. You can also include a description of the reason for not returning landmark information in the returned response. In addition, a range value can also be given in the location translation request, and only the information of the nearest landmark within the range value is returned.

202-03. The obtained city address and its corresponding accurate coordinate information are included in the translation result.

If the type of the location information in the location translation request is the latitude and longitude coordinate description of the region, the server acquires, from the database, a city address corresponding to the point coordinates in the region, or a city address overlapping the region. For example, if the latitude and longitude coordinates of a city address in the database "China/Guangdong/Shenzhen/Longgang/Putian/Huawei Base/B1" have a correspondence (22.215, 114.1325), if calculated If the point falls into the area in the location translation request, the corresponding city address can be included in the translation result. If a city address in the database "China/Guangdong/Shenzhen/Longgang District" has a corresponding regional coordinate description, and it is calculated that the region overlaps with the region in the location translation request, it may also be included in the translation result. But the server is best to avoid turning In the translated result, two city addresses with inclusion relationships appear at the same time. If they appear, you can return the city address with the smaller area. Or, the city address that has the largest overlap ratio with the area in the location translation request may be returned. For example, if the point corresponding to the city address falls into the area in the location translation request, the overlap ratio is 100%, and the external is zero. If the city address corresponds to the area, the area of the overlapping portion is divided by the area of the corresponding area of the city address to obtain an overlapping ratio. This will try to ensure that the closest city address information is returned more accurately. The specific steps of the server for translating the latitude and longitude coordinates of the location information type into the region are shown in FIG. 4, which mainly includes the following steps:

202-11. Obtain latitude and longitude coordinate description information of the area in the location translation request.

202-12. Obtain the city address with the largest overlap ratio with the region from the database by searching and calculating.

202-13. The obtained city address and its corresponding accurate coordinate description information are included in the translation result.

Step 203: The client receives a 200 0K response message returned by the server. The response message contains the translated city address. It may include one or more city addresses. When multiple city addresses are included, it is preferable to include accurate coordinate information corresponding to each city address. The response message is as follows. For the sake of brevity, the message examples in this article omit some of the well-known content:

HTTP/1. 1 200 0K

Server : Example LTS

Content-Type: appl i cat i on/1 tp+xml

<?xml version ⁼ l. 0"?>

Nse

Xmlns ⁼ urn : ietf: params: xml: ns: geopriv : ltp

<civicAddress> A1 GD /A1

<A3>Shenzhen</A3>

<A4>Longgang</A4>

<NAM>Huawei Base</NAM>

PC 518129 / PC

The location translation response <locationTranslationRespo contains a city address <civicAddress>, which includes field information such as country <country>, province <A1>. The name of the country, province or city in the field information can be a full name or an abbreviation.

The response message may also include precise latitude and longitude coordinate information corresponding to the city address, so that the client can calculate and display the relative positional relationship between the point in the request and the returned translated city address, such as distance, orientation, and the like.

Yet another embodiment of the present invention describes translating from a city address to a location coordinate. Referring to Figure 5, the following steps are specifically included:

Step 301: The client sends a location translation request message by using an HTTP/HTTPS POST request method. The location translation request includes location information whose location type is a city address. The specific request message is as follows:

POST http : //lts. example, com: 32328/location HTTP/1. 1

Accept: appl ication/ltp+xml, appl ication/xml; q=0. 8, text/xml; q=0. 7

Content-Type: appl ication/ltp+xml <?xml version ^=// l. 0"?> <locationTranslation

Xmlns ⁼ urn: ietf: params: xml: ns: geopriv: ltp

<A3>Shenzhen</A3>

<A4>Longgang</A4>

<NAM>Huawei Base</NAM>

</civicAddress>

The request <locationTransl£ition> includes city address information <civicAddress>, which includes address information such as country <country>, province 1>.

In addition to using the formatted city address, you can also use the city address described by the text. The contents of the location translation request message body are as follows:

<locationTranslation

Xmlns ⁼ urn: ietf: params: xml: ns: geopriv: ltp

<textAddress> No. 3, Shangdi Information Road, Haidian District, Beijing </textAddress>

For example, you can check the company information on the website of the Administration for Industry and Commerce, including the address information of the company. The address information is usually described in text, such as "No. 3 Shangdi Information Road, Haidian District, Beijing". After obtaining the text address, the client can obtain the specific geographical location coordinates corresponding to the enterprise through the location translation service, and then can display or label on the map according to the location coordinates. The Administration for Industry and Commerce may provide the public with the location inquiry of the enterprise by itself or through cooperation, and use the registration information such as the company name, business scope and address registered by the enterprise, translate the address into coordinates, and then display it on the map for public. For example, the application server searches for the matching record in the registration information according to the keyword provided by the user client, and translates the address matching the enterprise record into the position coordinate, and then adds the map of the area where the position coordinate is located and the enterprise name label in the corresponding position. The client that is returned to the user. The translation method may be that the application server sends a location translation request to the translation server to obtain the location coordinates of the text address. Alternatively, the application server may store the location coordinates corresponding to the translation of the enterprise address and use it locally.

Since the business registration information stored by the Administration for Industry and Commerce is very accurate and comprehensive, using location translation and map services as a basis will provide the public with convenience in all aspects of life, entertainment or business. Business operators can purchase enterprise registration information to quickly build the corresponding services without having to collect and enter corporate information.

In addition, this text address can also be input by the user. For example, only the simple unit name "Huawei" is input. Such address information may not be complete and accurate, and finally the translation result cannot be uniquely determined, and multiple translation results may be obtained.

Step 302: After receiving the location translation request, the server translates the city address information therein. Generally, if a city address information is relatively complete, the location coordinate information corresponding to the city address, including the coordinates of the point or region, can be uniquely determined. If the city address in the request is incomplete, it may match multiple corresponding position coordinate information during translation processing.

If the city address in the location translation request is formatted address information, the corresponding matching city address is directly retrieved in the database, and the location coordinate corresponding to the city address with the highest matching degree is used as the translation result. The matching degree can be judged according to the number of the same formatted address field value, and the more the same address field value, the higher the matching degree. In addition, in order to improve the accuracy of the matching, since different address fields have different contributions to the determined geographic location, different values can be assigned to different fields to calculate the matching degree, for example, the country <country^ contribution is smaller than the city <A3>, and the general level is more The lower the address information, the more accurate the contribution. Specific examples, if the country ₀ dish ^ 〉 If the field matches, the matching value is added to 0.5. If the city 3> field matches, the matching value is increased by 1. The total matching degree is obtained by accumulating the matching value corresponding to all the matching fields. In this way, it is possible to ensure that the position coordinate information with higher precision is returned as much as possible, instead of returning a large area range information. The embodiment of the present invention is also not limited to using other methods to calculate the matching degree.

In some cases, some fields can be ignored. For example, when the city address contains the lamp post number, the country and the city can uniquely determine an accurate latitude and longitude coordinate, and other fields can be ignored when matching. The lamppost numbers are deployed in many cities in China. The lampposts or utility poles on both sides of the street are painted with the word "110" and are vertically painted with a number such as "1020004". In a city, this number is unique and is used for accurate positioning by this number during an alarm. Of course, this number can also be used in other various location business applications. Through the location translation service, you can get the latitude and longitude coordinates corresponding to the lamp post number, which allows the user to use many location business applications that cannot be directly numbered with the lamp post.

The specific steps for the server to translate the location information type to the formatted city address are shown in Figure 6, which mainly includes the following steps:

302-01. Obtain the formatted city address information in the location translation request.

302-02. Obtain the city address with the highest matching degree from the database from the database by searching and calculating.

302-03. The obtained city address and its corresponding coordinate description information are included in the translation result. The coordinate description information of the corresponding point may include the latitude and longitude coordinates of the point, and the coordinate description information of the corresponding area such as a circle may include the latitude and longitude coordinates of the center of the circle and the radius value. The city address of a general building can correspond to the coordinates of the point. Geographic elements such as larger buildings, buildings, or parks can be described by the coordinates of the area. For example, the Forbidden City in Beijing can be described by polygonal areas.

In addition, if the formatted city address in the location translation request is incomplete (such as missing zip code), or inaccurate (such as possible misspellings or typos, etc.), the server can also return the corresponding data in the database when returning the translated coordinates. Completely and accurately formatted city address. If the city address in the location translation request is a text address, the server may first extract the address elements in the text address, such as comparing with the stored formatted address field one by one, formatting the text address, and then using the formatted The obtained city address retrieves the location coordinate information of the city address with the highest matching degree from the database. Or directly use the text address to match the formatted address information in each record in the database to calculate the matching degree. Specifically, if 3 fields in a record are included in the text address, the cumulative matching degree can be counted as 3. Different fields can also use different matching values.

In addition, the text address can also contain only the zip code such as "518129", and the server returns the position coordinate description information of the corresponding area of the zip code.

Step 303: The client receives a 200 0K response message including a position coordinate returned by the server. The message body of the response contains the translated position coordinates. Can contain one or more position coordinates. An example of the response message is as follows:

HTTP/1. 1 200 0K

Server : Example LTS

Content-Type: appl i cat i on/1 tp+xml

<?xml version ⁼ l. 0"?>

Nse

Xmlns ⁼ urn : ietf: params: xml: ns: geopriv : ltp〃

< location prof i le= geodetic-2d >

<Point sr sName ⁼ urn: ogc: def: cr s: EPSG: : 4326'<pos>22. 215 114. 2925</pos> For the city address as a text address, it is better to return the position coordinates and also return the formatted city address information corresponding to the coordinates. Because the formatted city address is more suitable for computer systems such as user clients or applications for further processing.

In addition, the response message may further include a map link, and the browser of the user client may obtain the map where the location information is located through the map link. A response message containing a map link such as <mapURL> is as follows:

Xmlns ⁼ urn : ietf: params: xml: ns: geopriv : ltp〃

< location prof i le= geodetic-2d >

<mapURL>http : example, com/ a40 j5hjsa3qian</mapURL>

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, and the program is running. At the time, all or part of the steps of the above embodiment methods are performed. The above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

As shown in FIG. 7, the client may include: a location information translation request module 701, a location information receiving module 702, and an interface interface module 704. The location information translation requesting module 701 is configured to send a location translation request message by using an HTTP/HTTPS protocol, such as a POST request method. The location information receiving module 702 is configured to receive the 200 OK response message that is returned by the server and includes the translation result, and may further display the response message to the user. The interface interface module 704 is configured to receive an indication for performing location information translation, and input location information to be translated, and transmit the location information translation request module to the location information translation request module. 701. Of course, the client may further include a location information storage module 703, and the location information storage module 703 stores the translation result obtained by the location information receiving module 702. The interface interface module 704 can also display corresponding maps on the interface, such as a browser or a satellite map browsing program, according to location information stored in the location information storage module 703, such as a city address and location coordinates, and corresponding coordinates can be marked on the map. City address information.

As shown in FIG. 8, the interface module 704 of the client may further include a browser module 705, which includes a location object 706, and the location object 706 provides a corresponding application programming interface (API) for obtaining the ear. The location information of the client, such as latitude and longitude coordinates, is provided to the web application. The web application can obtain the location information of the desired location type through the location information translation request module 701 after obtaining the location information of the user by calling the application interface of the location object 706. It is also possible to translate the obtained location information into a desired type by the server side of the web application through the location translation service, and then the server side of the web application uses the translated location information for processing.

The browser module 705 can also include an authentication module for controlling access to client location information. The user can configure which web applications can access the location information even with the location object 706 and the accuracy of the location information provided. For example, users can configure all web applications to obtain location-accurate location information, while a specific social application can obtain administrative-level accuracy location information. When the web application invokes the location object 706 to access the location information, the authentication module performs authentication according to the foregoing configuration to determine whether the web application can obtain the location information and the location information of which precision can be obtained, so that some webs can be made through the authentication control. The application can only know the user's city, and can't get more accurate location information, which effectively protects the user's privacy.

Many images, such as JPG format images, contain location information such as latitude and longitude coordinates in EXIF (Exchangeable Image Fi le Format) information. Web applications can use this location information, such as when a web page is displayed, when a mouse is detected to move to the image. On the top, extract the latitude and longitude coordinates in the picture, and then display the map corresponding to the coordinates at the same time, or through the location translation service The service location translation request is obtained in the form of floating text after obtaining the city address corresponding to the coordinate. The browser module 705 can also include an image object, which includes an EXIF information extraction interface corresponding to the provided application interface, so that the web application extracts the EXIF information of the image object in a script of the webpage, such as a JavaScript language script. The interface obtains the location information of the image and displays the floating text of the map or the translated city address.

As shown in FIG. 9, the server may include: a messaging module 901, a location information translation processing module 902, and a location information correspondence data storage module 903. The messaging module 901 is configured to receive and send location translation requests, such as receiving and transmitting location translation requests and response messages based on the HTTP/HTTPS protocol. The location information translation processing module 902 is configured to perform location information translation processing according to the location translation request message obtained by the message transceiver module 901, obtain matching information from the location information correspondence data storage module 903, and include the translation result by the message transceiver module 901. Returned in the response message. The location information correspondence data storage module 903 is for storing correspondence data of the location information. The specific translation processing performed by the location information translation processing module 902 can be referred to the above embodiment, and details are not described herein again.

The server may also include an interconnect interface module. When a server cannot obtain the translation result locally, the location information translation processing module 902 can send a location translation request to the other interconnected servers through the interconnection interface module, and the interconnection interface module obtains the translation result from the interconnected server, and then is included by the messaging module 901. Returned to the client in the response message. The list of interconnected servers can be pre-configured in the server. For example, in a national location translation server, the location information of an area such as Shenzhen may not be recorded, and the translation request may be forwarded to a regional location translation server such as Shenzhen, usually in a regional location translation server. A more detailed location information record is stored. Alternatively, if the location translation request is received by the location translation server in Beijing, and the location information requested by the user belongs to the Shenzhen area, the request may be forwarded to the location translation server of Shenzhen. The server may pre-configure the correspondence list of the interconnection server address and the area, and accordingly, the location translation server of the corresponding area is selected to forward the location translation request. Through each other The joint interface can make the corresponding relationship data between the position coordinates and the city address distributed and distributed according to the area, and the translation processing distributed computing.

As shown in FIG. 10, the system for providing location information according to an embodiment of the present invention may include a client 1001 and a server 1002, where: the client 1001 is configured to send a location translation request to the server 1002, and receive a location returned by the server 1002. Translating the response, the location translation request includes location information and a location type of the location information, and the location translation response includes translated location information;

The server 1002 is configured to store correspondence data of a location coordinate and a city address, receive the location translation request, and send a location translation response according to the location translation request, and query the location information correspondence according to the location translation request. The corresponding relationship data stored by the storage module is stored, and the translation processing of the location information is performed. The related structure of the client 1001 and the server 1002 in this embodiment may be specifically referred to the related structure of the client and the server, and details are not described herein.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, when executed, The steps of the foregoing method embodiments are performed; and the foregoing storage medium includes: various media that can store program codes, such as ROM, RAM, disk or optical disk.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Claim

1. A method of providing location information, the method comprising:

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2. The method of claim 1 wherein

The location information included in the location translation request is a latitude and longitude coordinate, a plane coordinate, or a projected coordinate corresponding to the location type, where:

Translating the location information in the translation request into location information corresponding to the location coordinates or the city address includes:

The latitude and longitude coordinates, plane coordinates, or projected coordinates are translated into city addresses corresponding to the position coordinates based on the position coordinates.

3. A method according to claim 1 or 2, characterized in that

The location information in the location translation request is a latitude and longitude coordinate of a certain point, where: querying the corresponding relationship data between the stored location coordinates and the city address according to the location translation request, and translating the location information in the translation request into Location information corresponding to the location coordinates or the city address, including:

The correspondence data of the stored location coordinates and the city address is queried to obtain the city address closest to the point distance.

4. The method according to claim 1 or 2, characterized in that

The location information in the location translation request is a latitude and longitude coordinate of a certain region, where: Transmitting the corresponding relationship data of the stored location coordinates and the city address according to the location translation request, and translating the location information in the translation request into the location information corresponding to the location coordinates or the city address, specifically:

Querying the correspondence data between the stored location coordinates and the city address obtains the city address with the largest overlap with the region.

5. A method according to claim 3 or 4, characterized in that

The translated location information specifically includes the obtained city address and/or coordinate information corresponding to the city address.

6. The method of claim 1 wherein:

The location information in the location translation request is a city address, and the location information included in the location translation request is city address information corresponding to the location type, where:

The city address information is translated into latitude and longitude coordinates, plane coordinates, or projected coordinates corresponding to the city address based on the city address.

7. The method of claim 2, wherein

The translation request includes a landmark acquisition indication, and the city address includes the landmark information field.

8. Method according to claim 1 or 6, characterized in that

The city address information is formatted city address information, where:

And the location information in the translation request is translated into the location information corresponding to the location coordinate or the city address, and the method includes:

The correspondence data of the stored location coordinates and the city address is queried to obtain the city address with the highest matching degree with the city address.

9. The method of claim 8 wherein: The translated location information specifically includes the obtained city address and/or coordinate information corresponding to the city address.

10. The method of claim 1 or 2, wherein

The location translation request includes a type of location translation, and the type of location translation includes translation from a city address to a latitude and longitude coordinate, a translation from a latitude and longitude coordinate to a city address, and a translation from a lamp post number to a latitude and longitude coordinate, wherein:

Translating the location information into the location information corresponding to the location type and the location coordinate or the city address according to the location type specifically includes: translating the location information into the location translation type according to the type of the location translation Corresponding location information.

11. A method of providing location information, comprising:

12. A client, including:

a location information receiving module, configured to receive a location translation response returned by the server, where the location translation response includes location information corresponding to a location coordinate or a city address, where the location information corresponding to the location coordinate or the city address is used by the server Corresponding relationship data of the stored location coordinates and the city address is queried according to the location information in the location translation request and translated.

The client according to claim 12, further comprising: an interface interface module, configured to receive an indication of location translation and location information to be translated, and transmit the location information to the location translation request module.

14. A server, comprising: a message sending and receiving module, configured to receive a location translation request, and send a location translation response according to the location translation request, where the location translation request includes location information, where the location translation response includes location information corresponding to the location coordinate or the city address;