HK1213338A1 - Method and device for locating address - Google Patents
Method and device for locating address Download PDFInfo
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- HK1213338A1 HK1213338A1 HK16101249.9A HK16101249A HK1213338A1 HK 1213338 A1 HK1213338 A1 HK 1213338A1 HK 16101249 A HK16101249 A HK 16101249A HK 1213338 A1 HK1213338 A1 HK 1213338A1
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Description
Technical Field
The present application relates to the field of location search technologies, and in particular, to an address location method and apparatus.
Background
In internet services, it is increasingly necessary for individual users or collective and commercial users to input their own text addresses, and then analyze actual geographic locations (latitude and longitude) corresponding to the text addresses from a geographic coding database through a geo-coding algorithm. However, due to the limitation of the existing Geocoding technology, the number of points of interest (POI) in the geocoded database is limited, and it is impossible to cover all text addresses inputted by the user, and the text addresses inputted by the user may have an irregular condition, so that text addresses which do not appear in the geocoded database are frequently encountered. For text addresses which do not appear in the geocoding database, a nearby related POI is generally found out in the geocoding database, and then approximate longitude and latitude information is provided through interpolation and other modes. Therefore, the accuracy of the geographical position information provided by the existing Geocoding technology cannot be guaranteed, and whether the geographical position information is accurate or not cannot be judged, and how accurate the geographical position information is, so that the problem of address positioning accuracy cannot be solved.
Disclosure of Invention
The purpose of the present application is to provide an address location method and apparatus, which can improve the accuracy of address location.
The application provides an address positioning method, which comprises the following steps:
according to a first text address input by a user, carrying out address analysis in a geocoding database to obtain longitude and latitude information of the first text address;
according to the longitude and latitude information of the first text address, at least one reference POI is obtained from a point of interest (POI) database in a matching mode, and the distance between the reference POI and the first text address is within a preset first threshold value, wherein the POI database comprises the reference POI and the longitude and latitude information of the reference POI;
generating and displaying a verification question by using the at least one reference POI;
and verifying whether the latitude and longitude information of the first text address is correct or not according to the result fed back by the user to the verification problem, and positioning the address according to the verification result.
In yet another aspect, the present application further provides an address location apparatus, the apparatus including:
the address analysis unit is used for carrying out address analysis in the geocoding database according to a first text address input by a user to obtain longitude and latitude information of the first text address;
the matching unit is used for matching and obtaining at least one reference POI from a point of interest (POI) database according to the longitude and latitude information of the first text address obtained by the address analysis unit, wherein the distance between the reference POI and the first text address is within a preset first threshold value, and the POI database comprises the reference POI and the longitude and latitude information of the reference POI;
the question generating unit is used for generating and displaying a verification question by utilizing the at least one reference POI obtained by matching through the matching unit;
the verification unit is used for verifying whether the longitude and latitude information of the first text address is correct or not according to a result fed back by the user to the verification problem generated by the problem generation unit;
and the positioning unit is used for positioning the address according to the verification result of the verification unit.
According to the address positioning method and device, the reference POI near the text address is found out for verification, address positioning is carried out according to the verification result, address positioning can be accurately carried out, positioning precision is guaranteed, and the accuracy of the address positioning is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of an address location method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a display interface provided in an embodiment of the present application;
FIG. 3 is a flowchart of a method for relocating a first text address according to an embodiment of the present application;
FIG. 4 is a schematic illustration of a relocated partition provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of an address location apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a positioning unit according to an embodiment of the present application.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The address positioning method and device provided by the embodiment of the application can be used in a scene that a user utilizes a webpage or terminal equipment to position an address, for example, the situation that the user needs to input a text address of the user and identify an actual geographic position in a map.
Fig. 1 is a flowchart of an address location method provided in this embodiment, and as shown in fig. 1, the address location method of the present application includes:
s101, according to a first text address input by a user, performing address resolution in a geocoding database to obtain longitude and latitude information of the first text address.
In the web page, a plurality of drop-down boxes and input boxes may be included for the user to input a text address, and a specific displayed page may be as shown in the drop-down box 101 and the input box 102 in fig. 2, where the drop-down box 101 has a plurality of drop-down boxes, including regional levels such as province, city, district, street/town, etc., and the user may select a standard name of a region in which the drop-down box is located step by step in each drop-down box in the web page. For the input box 102, the user may enter detailed address information in the input box 102.
It can be seen that the text address (i.e. the first text address) entered by the user in the above-mentioned drop-down box 101 and the input box 102 may include a canonical address and a detailed address, the canonical address refers to the address information entered by the user by selecting the drop-down box 101 and may be specific to the street/town, and the detailed address refers to the address information entered by the user in the input box 102.
According to a first text address input by a user, address resolution is carried out in a geocoding database to obtain longitude and latitude information of the first text address. The address resolution method may use an address resolution method provided by an existing map provider, for example, a high-resolution map, a hundred-degree map, or a google (google) map, to perform address resolution in a geocoding database provided by the map provider, so as to obtain longitude and latitude information of the first text address.
S102, matching to obtain at least one reference POI from a point of interest (POI) database according to the longitude and latitude information of the first text address, wherein the distance between the reference POI and the first text address is within a preset first threshold value.
And matching to obtain at least one reference POI near the first text address from a point of interest (POI) database by utilizing the latitude and longitude information of the first text address obtained in the S101.
Wherein the POI database comprises the reference POI and latitude and longitude information of the reference POI.
Generally, the POI database is pre-established using geographical location information of POIs of a certain scale. The geographic location information of the POI with a certain scale may include a large number of landmarks, text addresses of famous places, and accurate latitude and longitude information, including but not limited to: buildings, bus stops, companies, malls, streets, house numbers, convenience stores, and the like.
Optionally, the address location method provided in the embodiment of the present application further includes: and taking the known text address with accurate longitude and latitude information as the reference POI, and generating the POI database by utilizing the reference POI and the accurate longitude and latitude information thereof.
The distance between the reference POI and the first text address can be calculated by adopting a distance calculation formula according to the longitude and latitude information of the reference POI and the longitude and latitude information of the first text address obtained in the step S101.
The preset first threshold is a preset distance threshold, for example, 1000 meters, 100 meters, etc., to ensure that the reference POI obtained by matching is a POI near the first text address.
S103, generating and displaying a verification question by using the at least one reference POI.
And randomly generating a verification question by using the reference POI obtained by matching in S102, and displaying the verification question to a user.
The form of the generated verification problem may be various, and is not limited in this application. For example, a question in a question area may be: "is bus stop a near the address? "," XX building is near the address? "wherein, bus station A and XX mansion are the reference POI that the matching got.
Optionally, when the verification question is generated, alternative answers may also be generated at the same time, so that the user selects an answer from the alternative answers for feedback. For example, given an alternative answer in the answer area, the alternative answer may be: "1. is; 2. if not; 3. is not known. ", so that the user can make the selection conveniently.
Preferably, the reference POI obtained by the matching in S102 and the distance between the reference POI and the first text address may be used to randomly generate a verification question and an alternative answer, so that the user may select an answer from the alternative answers for feedback.
For example, a question in a question area may be: "is bus stop a 1 km near the address? "," XX building is 200 meters near the address? "etc., wherein the bus stops a and XX building are the matched reference POIs, and 1 km and 200 m are the distances between the calculated reference POIs (bus stops a and XX building) and the first text address. In addition, alternative answers may also be given in the answer area, and the alternative answers may be: "1. is; 2. if not; 3. is not known. ", so that the user can make the selection conveniently. Specifically, as shown in fig. 2 at 103 and 104, where 103 is a question area and 104 is an answer area. The user can select the correct answer in the answer area for feedback.
Optionally, in order to avoid the user from freely feeding back "yes" as much as possible, a certain proportion (e.g., 30%) of questions may be randomly generated questions with "no" answers. For example, a non-nearby POI is found in the POI database and a distance is randomly generated to answer. For example, C is actually out of 10KM from latitude and longitude, 103 shows the question if C is about 1000 meters from the address?
The generated verification questions are displayed as shown at 103 and 104 in fig. 2. In addition, at the same time of displaying the question, the position point of the point corresponding to the question is displayed in 105 in fig. 2 for the user to judge. When one question ends, 103 and 104 in fig. 2 are updated to show the next question.
And S104, verifying whether the longitude and latitude information of the first text address is correct or not according to the result fed back by the user to the verification problem, and positioning the address according to the verification result.
And verifying whether the latitude and longitude information of the first text address is correct or not according to a result fed back by the user to the verification problem.
Alternatively, one method of verification is whether the user answers the correct "yes" or "no" two consecutive times. If the answer is correct 'yes' in two consecutive times, the address is judged to be correctly positioned; if the answer is no, the address is judged to be wrong.
The address location according to the verification result specifically includes:
and if the verification result is that the latitude and longitude information of the first text address is correct, positioning according to the latitude and longitude information of the first text address.
Or if the verification result is that the latitude and longitude information of the first text address is wrong, repositioning the first text address.
The repositioning the first text address specifically includes:
s1041, dividing the first address range where the first text address is located into a plurality of first positioning blocks.
The first address range is a range of addresses within which the first text address is determined, typically larger than the range of actual geographic locations of the first text address. For example, the first text address is "mansion XX in guancun, beijing, hai lake district", and the first address range may be a range covered by "hai lake district of beijing", or may be a range covered by "hai lake district of beijing".
Optionally, the first address range is a range covered by a canonical address of the first text address.
Generally, the canonical address entered by the user is correct (e.g. province \ city \ district \ street), which is determined as the first address range, divided into a plurality of blocks (i.e. first positioning blocks), as shown in fig. 4, divided into 4 first positioning blocks: 1A, 1B, 1C, 1D.
S1042, according to the first positioning block, selecting at least one reference POI from the POI database, generating and displaying a verification problem.
As shown in fig. 4, some reference POIs are randomly selected from 1A, 1B, 1C, 1D, and questions such as those in the location verification procedure are generated, to which random interference questions with the answer "no" are also added.
S1043, according to a result fed back by the user to the verification problem, determining whether the first text address is in the first positioning block, if so, entering S1044, otherwise, indicating that the first text address is in other first positioning blocks, returning to S1042, and selecting at least one reference POI from other first positioning blocks.
If the user answers 2 questions 'yes' continuously to a certain first positioning block, the first text address is judged to be in the first positioning block.
And S1044, judging whether the current positioning precision meets the preset precision requirement, if so, entering S1045, and otherwise, entering S1046.
The preset accuracy requirement is the positioning accuracy required by the system, and can be preset according to an actual application scene, for example, the preset accuracy requirement can be 1000 meters, 100 meters, 10 meters, and the like. For example, "the XX building in guancun in the hai lake area of beijing city," if the preset accuracy requirement is 1000 meters, it may be necessary to locate a certain street or road segment, and if the preset accuracy requirement is 10 meters, it may be necessary to locate a specific number plate or cell.
S1045, positioning the first text address to the determined first positioning block.
And S1046, taking the first positioning block where the first text address determined in the S1043 is located as a new first address range, and re-executing S1041-S1044 until the positioning accuracy meets the preset accuracy requirement.
Specifically, if the current positioning accuracy does not meet the preset accuracy requirement, the first positioning block where the first text address is located is divided into a plurality of second positioning blocks, and at least one reference POI is selected from the second positioning blocks again to generate the verification problem for re-determination until the positioning accuracy meets the preset accuracy requirement.
According to the address positioning method, the user is asked about the nearby POI in an interactive mode to verify the accuracy of the result of address resolution, and the correct longitude and latitude corresponding to the text address is searched and positioned when the result is inaccurate, so that the accuracy of address positioning is effectively improved.
In addition, since the existing general method for inputting an address by a user is: after a user inputs a text address, the user calls Geocoding to analyze the longitude and the latitude, then the longitude and the latitude are displayed on an online map, and the user corrects the Geocoding result in a map dragging mode. However, reading a map has certain technical requirements for some users, the users are required to be able to recognize the map, most users can operate the online map only through training, and sometimes the users are required to have patience to find out an accurate point, so that most users can select a default Geocoding result without any modification. The address positioning method provided by the application provides a convenient positioning and deviation rectifying method for a user, the user only needs to know nearby landmarks by the user, and the text address can be accurately positioned on a map, so that the problems that the user does not know the map and is not familiar with operating on-line map points and the inaccuracy of Geocoding positioning longitude and latitude are solved.
The above is a detailed description of the address location method provided in the embodiments of the present application, and the following is a detailed description of the address location device provided in the present application.
Corresponding to the above address location method described in detail in fig. 1 to 4, an address location apparatus provided in an embodiment of the present application is further provided, as shown in fig. 5, the apparatus of the present application includes: an address resolution unit 501, a matching unit 502, a problem generation unit 503, a verification unit 504, and a location unit 505.
The address resolution unit 501 is configured to perform address resolution in the geocoding database according to a first text address input by a user, so as to obtain longitude and latitude information of the first text address.
The address resolution unit 501 performs address resolution in the geocoding database according to the first text address input by the user, so as to obtain longitude and latitude information of the first text address. The address resolution method may use an address resolution method provided by an existing map provider, for example, a high-resolution map, a hundred-degree map, or a google (google) map, to perform address resolution in a geocoding database provided by the map provider, so as to obtain longitude and latitude information of the first text address.
The first text address may include a canonical address and a detailed address, the canonical address refers to address information input by the user by selecting the drop-down box 101 in fig. 2 and may be specific to a street/town, and the detailed address refers to address information input by the user in the input box 102 in fig. 2.
The matching unit 502 is configured to obtain at least one reference POI by matching from the POI database according to the latitude and longitude information of the first text address obtained by the address resolution unit 501.
The distance between the reference POI and the first text address is within a preset first threshold value.
Wherein the POI database comprises the reference POI and latitude and longitude information of the reference POI.
Optionally, the address location apparatus provided in this embodiment of the present application further includes: a library establishing unit (not shown) configured to use a known text address with accurate longitude and latitude information as the reference POI, and generate the POI database by using the reference POI and the accurate longitude and latitude information thereof.
The distance between the reference POI and the first text address may be calculated by using a distance calculation formula according to the longitude and latitude information of the reference POI and the longitude and latitude information of the first text address obtained by the address resolution unit 501.
The preset first threshold is a preset distance threshold to ensure that the reference POI matched by the matching unit 502 is a POI near the first text address.
The question generating unit 503 is configured to generate and display a verification question by using the at least one reference POI obtained by matching by the matching unit 502.
The question generating unit 503 is specifically configured to randomly generate a verification question and an alternative answer by using the reference POI obtained by matching in the matching unit 502 and the distance between the reference POI and the first text address, so that the user can select an answer from the alternative answers for feedback.
Alternatively, the question generation unit 503 may also generate a proportion of questions with the answer "no" randomly. The question generation unit 503 also displays the generated verification question as shown by 103 and 104 in fig. 2. In addition, at the same time of displaying the question, the position point of the point corresponding to the question is displayed in 105 in fig. 2 for the user to judge. When one question ends, 103 and 104 in fig. 2 are updated to show the next question.
The verification unit 504 is configured to verify whether the latitude and longitude information of the first text address is correct according to a result of the user's feedback on the verification question generated by the question generation unit 503.
The location unit 505 is configured to perform address location according to the verification result of the verification unit 504.
If the verification result of the verification unit 504 is that the latitude and longitude information of the first text address is correct, the positioning unit 505 is specifically configured to perform positioning according to the latitude and longitude information of the first text address.
If the verification result of the verification unit 504 is that the latitude and longitude information of the first text address is wrong, the positioning unit 505 is specifically configured to reposition the first text address.
Specifically, the positioning unit 505 includes: a partition sub-unit 5051, a problem generation sub-unit 5052, and a location sub-unit 5053.
The partition sub-unit 5051 is configured to divide the first address range where the first text address is located into a plurality of first location blocks.
The question generation subunit 5052 is configured to select at least one reference POI from the POI database based on the first location block into which the partitioning subunit 5051 divides, and to generate and display a verification question.
The location subunit 5053 determines whether the first text address is in the first location block based on the result of the user feeding back the verification question of the question generation subunit 5052; if so, judging whether the current positioning accuracy meets the preset accuracy requirement, if so, positioning the first text address into the determined first positioning block, otherwise, dividing the first positioning block where the first text address is located into a plurality of second positioning blocks by using a partitioning subunit 5051, and selecting at least one reference POI from the second positioning blocks again by using a question generation subunit 5052 to generate a verification question for re-determination until the positioning accuracy meets the preset accuracy requirement; if not, the first text address is indicated to be in other first positioning blocks.
The preset precision requirement is the positioning precision required by the system, and can be preset according to the actual application scene.
The functions of the units may correspond to the processing steps of the address location method described in detail in fig. 1 to 4, and are not described herein again.
According to the address positioning method and device, the reference POI near the text address is found out for verification, address positioning is carried out according to the verification result, address positioning can be accurately carried out, positioning precision is guaranteed, and the accuracy of the address positioning is improved.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments, objects, technical solutions and advantages of the present application are described in further detail, it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. An address location method, the method comprising:
according to a first text address input by a user, carrying out address analysis in a geocoding database to obtain longitude and latitude information of the first text address;
according to the longitude and latitude information of the first text address, at least one reference POI is obtained from a point of interest (POI) database in a matching mode, and the distance between the reference POI and the first text address is within a preset first threshold value, wherein the POI database comprises the reference POI and the longitude and latitude information of the reference POI;
generating and displaying a verification question by using the at least one reference POI;
and verifying whether the latitude and longitude information of the first text address is correct or not according to the result fed back by the user to the verification problem, and positioning the address according to the verification result.
2. The method according to claim 1, wherein the performing address location according to the verification result specifically includes:
if the verification result is that the longitude and latitude information of the first text address is correct, positioning according to the longitude and latitude information of the first text address;
or if the verification result is that the latitude and longitude information of the first text address is wrong, repositioning the first text address.
3. The method according to claim 2, wherein the repositioning the first text address specifically includes:
dividing a first address range in which the first text address is located into a plurality of first positioning blocks;
selecting at least one reference POI from the POI database according to the first positioning block, generating and displaying a verification problem;
determining whether the first text address is in the first positioning block or not according to a result of the user's feedback on the verification problem; if so, judging whether the current positioning precision meets the preset precision requirement, and if so, positioning the first text address into the determined first positioning block; otherwise, dividing the first positioning block where the first text address is located into a plurality of second positioning blocks, and selecting at least one reference POI from the second positioning blocks again to generate a verification problem for re-determination until the positioning accuracy meets the preset accuracy requirement.
4. The method of claim 3, wherein the first textual address entered by the user comprises a canonical address and a detailed address;
the first address range of the first text address is a range covered by the canonical address of the first text address.
5. The method of claim 1, further comprising:
and taking the known text address with accurate longitude and latitude information as the reference POI, and generating the POI database by utilizing the reference POI and the accurate longitude and latitude information thereof.
6. The method according to claim 1, wherein the generating a verification question using the at least one reference POI specifically comprises:
and randomly generating a verification question and alternative answers by using the reference POI obtained by matching and the distance between the reference POI and the first text address so that a user can select an answer from the alternative answers for feedback.
7. An address localization apparatus, the apparatus comprising:
the address analysis unit is used for carrying out address analysis in the geocoding database according to a first text address input by a user to obtain longitude and latitude information of the first text address;
the matching unit is used for matching and obtaining at least one reference POI from a point of interest (POI) database according to the longitude and latitude information of the first text address obtained by the address analysis unit, wherein the distance between the reference POI and the first text address is within a preset first threshold value, and the POI database comprises the reference POI and the longitude and latitude information of the reference POI;
the question generating unit is used for generating and displaying a verification question by utilizing the at least one reference POI obtained by matching through the matching unit;
the verification unit is used for verifying whether the longitude and latitude information of the first text address is correct or not according to a result fed back by the user to the verification problem generated by the problem generation unit;
and the positioning unit is used for positioning the address according to the verification result of the verification unit.
8. The apparatus according to claim 7, wherein if the verification result of the verification unit is that the latitude and longitude information of the first text address is correct, the positioning unit is specifically configured to perform positioning according to the latitude and longitude information of the first text address;
or, if the verification result of the verification unit is that the latitude and longitude information of the first text address is wrong, the positioning unit is specifically configured to reposition the first text address.
9. The device according to claim 8, wherein the positioning unit comprises: the system comprises a partitioning subunit, a problem generation subunit and a positioning subunit;
the partition subunit is configured to divide a first address range in which the first text address is located into a plurality of first positioning blocks;
the problem generation subunit is configured to select at least one reference POI from the POI database according to the first positioning block divided by the partitioning subunit, generate and display a verification problem;
the positioning subunit determines whether the first text address is in the first positioning block according to a result of the verification question feedback of the question generation subunit by the user; if so, judging whether the current positioning precision meets the preset precision requirement, if so, positioning the first text address into the determined first positioning block, otherwise, dividing the first positioning block where the first text address is located into a plurality of second positioning blocks by using the partitioning subunit, and selecting at least one reference POI from the second positioning blocks by using the problem generation subunit to generate the verification problem again for determining again until the positioning precision meets the preset precision requirement.
10. The apparatus of claim 9, wherein the first text address entered by the user comprises a canonical address and a detailed address;
the first address range of the first text address is a range covered by the canonical address of the first text address.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156170.9A CN105095205B (en) | 2014-04-17 | 2014-04-17 | Address locating methods and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1213338A1 true HK1213338A1 (en) | 2016-06-30 |
| HK1213338B HK1213338B (en) | 2019-08-09 |
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| CN105095205B (en) | 2018-07-27 |
| CN105095205A (en) | 2015-11-25 |
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