CN109286893B - Positioning method and device - Google Patents
Positioning method and device Download PDFInfo
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- CN109286893B CN109286893B CN201811347305.4A CN201811347305A CN109286893B CN 109286893 B CN109286893 B CN 109286893B CN 201811347305 A CN201811347305 A CN 201811347305A CN 109286893 B CN109286893 B CN 109286893B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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Abstract
The embodiment of the invention discloses a positioning method and equipment. The method comprises the following steps: acquiring basic positioning information of a current position; obtaining information related to an object, wherein the object is located around the current location; and determining accurate positioning information of the current position based on the basic positioning information and the information related to the target. The embodiment of the invention can obtain the accurate positioning information of the current position, thereby greatly improving the service quality and the user experience of the LBS application.
Description
Reference to related applications
The application is a divisional application of patent application with the name of positioning method and equipment, wherein the application number of the Chinese country is 201510028638.0, the application date is 2015, 1 and 20.
Technical Field
The embodiment of the invention relates to a positioning technology, in particular to a positioning method and equipment.
Background
With the rapid development of the internet and mobile devices, more and more Location Based Services (LBS) application software is emerging. In these LBS applications, how to achieve fast and accurate positioning becomes a highly important issue in the industry.
For example, the service modes of taxi taking software which is popular in the market at present are as follows: after the taxi taking software is started, the position of the current equipment is positioned, and a calling instruction can be sent out only after the positioning is successful. Currently common positioning techniques include: GPS location technology, Wi-Fi location technology, and location technology using base stations. These positioning techniques have limited positioning accuracy. For example, in taxi taking software, it is often difficult for a driver to accurately find the position of a passenger through a map, and in some special positions, a situation of positioning failure may occur, and the passenger cannot use the calling service of the taxi taking software. The inability to locate and inaccurate location conditions will greatly impact the quality of service and user experience of LBS applications.
Disclosure of Invention
The embodiment of the invention aims to provide a method and equipment for accurate positioning, which can solve the problem that the positioning cannot be realized or the positioning is inaccurate depending on common positioning technology in related LBS application.
According to one aspect of the invention, a method of positioning is provided. The method comprises the following steps: acquiring basic positioning information of a current position; obtaining information related to an object, wherein the object is located around the current location; and determining accurate positioning information of the current position based on the basic positioning information and the information related to the target.
In one embodiment, the basic positioning information of the current location includes longitude and latitude of the current location.
In another embodiment, the information related to the target comprises a photograph or video of a building with a specific sign, a road sign.
In yet another embodiment, obtaining the basic positioning information of the current position comprises: acquiring basic positioning information of the current position based on a GPS positioning technology; acquiring basic positioning information of the current position based on a Wi-Fi positioning technology; or based on the base station positioning technology, acquiring the basic positioning information of the current position.
In yet another embodiment, determining the fine positioning information for the current location based on the basic positioning information and the target-related information comprises: identifying the name of the building from the photo or video of the building with the specific mark; acquiring positioning information of the building based on the identified name of the building; and determining accurate positioning information of the current position based on the basic positioning information and the positioning information of the building.
In yet another embodiment, identifying the name of the building from the photograph or video of the building with the particular logo comprises: adopting an image recognition technology to the photo of the building to recognize the name of the building with the specific mark; or adopting a video identification technology to the video of the building to identify the name of the building with the specific mark.
In yet another embodiment, obtaining the location information of the building comprises: and inquiring an address information database based on the identified name of the building to acquire the positioning information of the building.
In yet another embodiment, determining the precise location information for the current location based on the base location information and the location information for the building comprises: comparing the identified location information of the building with basic location information of the current location; and using the positioning information of the building closest to the current position as accurate positioning information of the current position.
According to another aspect of the present invention, there is provided an apparatus for positioning, comprising: the first acquisition device is used for acquiring basic positioning information of the current position; second acquiring means for acquiring information on an object around the current position, the object being located around the current position; and a positioning device for determining accurate positioning information of the current position based on the basic positioning information and the information related to the target.
In one embodiment, the basic positioning information of the current location includes longitude and latitude of the current location.
In another embodiment, the information related to the target comprises a photograph or video of a building with a specific sign, a road sign.
In another embodiment, the first acquiring means is configured to acquire basic positioning information of the current position based on GPS positioning technology; acquiring basic positioning information of the current position based on a Wi-Fi positioning technology; or based on the base station positioning technology, acquiring the basic positioning information of the current position.
In yet another embodiment, the positioning device comprises: the identification unit is used for identifying the name of the building from the photo or the video of the building with the specific mark; the query unit is used for acquiring the positioning information of the building based on the identified name of the building; and an analysis unit for determining accurate positioning information of the current position based on the basic positioning information and the positioning information of the building.
In yet another embodiment, the identification unit includes: the first identification subunit is used for identifying the name of the building with the specific mark by adopting an image identification technology for the photo of the building; or the second identification subunit is used for identifying the name of the building with the specific mark by adopting a video identification technology for the video of the building.
In a further embodiment, the query unit is configured to query an address information database based on the identified name of the building to obtain the location information of the building.
In a further embodiment, the analysis unit is configured to compare the identified location information of the building with the basic location information of the current location; and using the positioning information of the building closest to the current position as accurate positioning information of the current position.
The embodiment of the invention can obtain the accurate positioning information of the current position, thereby greatly improving the service quality and the user experience of the LBS application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a positioning method 100 according to an embodiment of the invention;
fig. 2 is a block diagram of a positioning apparatus 200 according to an embodiment of the present invention.
Detailed Description
The principles of the present invention will be described below with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these examples are described only to enable those skilled in the art to better understand and to implement the present invention, and are not intended to limit the scope of the present invention in any way.
Fig. 1 illustrates a flow chart of a positioning method 100 according to an embodiment of the present invention, which includes steps S101 to S103 as follows.
In step S101, basic positioning information of the current position is acquired.
The basic positioning information of the current location includes the longitude and latitude of the current location. There are various ways to obtain the basic positioning information of the current position. For example, basic positioning information of the current position may be acquired based on GPS positioning technology.
In addition, basic positioning information of the current position can be obtained based on Wi-Fi positioning technology, each wireless AP (router) has a globally unique MAC address, and generally the wireless AP does not move within a period of time; the device can scan and collect surrounding AP signals to acquire the MAC address broadcasted by the AP under the condition of starting Wi-Fi; the device sends the data capable of marking the AP to a position server, and the server retrieves the geographic position of each AP and calculates the position of the device by combining the strength of each signal.
In addition, the basic positioning information of the current position can be obtained based on the base station positioning technology, the downlink pilot signals of different base stations are measured, the TOA (Time of Arrival) or TDOA (Time Difference of Arrival) of the downlink pilot of different base stations is obtained, and the current position of the device can be calculated by combining the measurement result with the coordinates of the base stations and generally adopting a trigonometric formula estimation algorithm.
Next, the method proceeds to step S102, and information related to the object, which is located around the current position, is acquired.
According to an embodiment of the invention, the information related to objects around the current location comprises a photograph or video of a building, a road sign with a specific sign. For example, one photograph or video of a building having a particular landmark around the current location may be obtained, or multiple photographs or videos of multiple buildings around the current location may be obtained.
Next, the method proceeds to step S103, and based on the basic positioning information and the information related to the object, the precise positioning information of the current position is determined.
According to an embodiment of the invention, this step comprises identifying the name of the building from a photograph or video of the building with the specific logo. For example, assuming that a photograph of the building is obtained, the basic features of the building can be identified by picture recognition techniques. By querying the feature database of the building, the building matching the feature can be found. Since a feature may not be unique, multiple buildings may be found that match the feature, with B1, B2, … Bn (n is greater than or equal to 1) identifying the name of the identified building. Similarly, assuming that a video of the building is acquired, the basic feature of the building is identified through a video identification technology, and a plurality of buildings matching the feature are found, and the names of the identified buildings are also identified by B1, B2 and … Bn (n is greater than or equal to 1).
According to an embodiment of the present invention, the step further comprises obtaining location information of the building based on the identified name of the building. For example, based on the names B1, B2, … Bn (n is 1 or more) of the identified buildings, the address information database is queried, and the location information P1, P2, … Pn (n is 1 or more) of the buildings can be acquired.
According to an embodiment of the present invention, the step further includes determining accurate location information of the current location based on the basic location information and the acquired location information of the building. For example, the basic location information of the current location is P0, and the acquired location information of the building is P1, P2, … Pn (n is equal to or greater than 1). And sequentially calculating distances between P0 and P1, P2 and … Pn (n is more than or equal to 1), namely D01, D02 and … D0 n. Sorting the D01, the D02 and the … D0n in the order from small to large, can find the minimum value D0x, and the minimum value D0x corresponds to the positioning information Px of the building closest to the P0. Px will be the precise location information for this current position. Because the building is closer to the current position, and the pictures or videos taken by the building are not limited by indoor, shading, the existence of wireless APs, the density of nearby base stations and other factors which may affect the positioning accuracy of the existing positioning technology, compared with the existing positioning technology, the embodiments of the present invention can eliminate various limitations of the existing positioning technology, significantly improve the positioning accuracy, and thus improve the user experience of LBS application.
Fig. 2 illustrates a block diagram of a positioning apparatus 200 according to an embodiment of the present invention. As shown in fig. 2, the apparatus 200 includes: a first obtaining device 201, configured to obtain basic positioning information of a current position; second acquiring means 202 for acquiring information related to an object, wherein the object is located around the current position; and a positioning device 203 for determining accurate positioning information of the current position based on the basic positioning information and the information related to the target.
According to an embodiment of the present invention, wherein the basic positioning information of the current location comprises longitude and latitude of the current location.
According to an embodiment of the invention, wherein the information related to the object comprises a photograph or a video of a building, a road sign with a specific sign.
According to the embodiment of the present invention, the first obtaining device 201 is configured to obtain basic positioning information of a current position based on a GPS positioning technology; acquiring basic positioning information of the current position based on a Wi-Fi positioning technology; or based on the base station positioning technology, acquiring the basic positioning information of the current position.
According to an embodiment of the present invention, the positioning device 203 comprises: a recognition unit for recognizing the name of the building from the photo or video of the building having the specific mark; the query unit is used for acquiring the positioning information of the building based on the identified name of the building; and an analysis unit for determining accurate positioning information of the current position based on the basic positioning information and the positioning information of the building.
According to an embodiment of the invention, the identification unit comprises: the first identification subunit is used for identifying the name of the building with the specific mark by adopting an image identification technology for the photo of the building; or the second identification subunit is used for identifying the name of the building with the specific mark by adopting a video identification technology for the video of the building.
According to an embodiment of the present invention, the query unit is configured to query the address information database based on the identified name of the building to obtain the location information of the building.
According to an embodiment of the present invention, the analysis unit is configured to compare the identified location information of the building with the basic location information of the current location; and using the positioning information of the building closest to the current position as the accurate positioning information of the current position.
In summary, according to the embodiments of the present invention, a method and an apparatus for accurate positioning are provided. The method comprises the following steps: acquiring basic positioning information of a current position; obtaining information related to an object, wherein the object is located around the current location; and determining accurate positioning information of the current position based on the basic positioning information and the information related to the target. The implementation of the invention obtains the accurate positioning information of the current position, thereby greatly improving the service quality and the user experience of the LBS application.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or they may be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A method of positioning, comprising:
acquiring basic positioning information of a current position;
obtaining information related to an object, wherein the object is located around the current location;
determining a plurality of positioning information of the target based on the information related to the target;
determining a plurality of distances between a plurality of positioning information of the target and basic positioning information of the current position; and
sorting the plurality of distances to take the positioning information corresponding to the minimum distance as accurate positioning information of the current position;
wherein obtaining the basic positioning information comprises:
measuring a downlink pilot signal of a base station to obtain the arrival time and the arrival time difference of the downlink pilot signal;
determining the basic positioning information based on the arrival time, the arrival time difference and the coordinates of the base station;
wherein determining the plurality of positioning information of the target comprises:
identifying a feature of a building from the information relating to the target;
a building matching the features is determined from a feature database to identify a name of the building.
2. The method of claim 1, wherein the basic positioning information of the current location comprises a longitude and a latitude of the current location.
3. The method of claim 1, wherein the information related to the target comprises a photograph or video of a building with a particular sign, a landmark.
4. The method of claim 3, wherein determining a plurality of positioning information for the object based on the object-related information further comprises:
and acquiring a plurality of positioning information of the building based on the identified name of the building.
5. The method of claim 4, wherein identifying the feature of the building from the target-related information comprises:
adopting an image recognition technology to the photo of the building to recognize the characteristics of the building with the specific mark; or
And identifying the characteristics of the building with the specific mark by adopting a video identification technology on the video of the building.
6. The method of claim 4, wherein obtaining a plurality of location information for the building based on the name of the building comprises:
and querying an address information database to obtain a plurality of positioning information of the building based on the identified name of the building.
7. An apparatus for localization, comprising:
the first acquisition device is used for acquiring basic positioning information of the current position;
second acquiring means for acquiring information relating to an object, wherein the object is located around the current position;
a first positioning device for determining a plurality of positioning information of the target based on the information related to the target;
comparing means for determining a plurality of distances between a plurality of positioning information of the target and the basic positioning information of the current position; and
second positioning means for sorting the plurality of distances to use positioning information corresponding to a minimum distance as accurate positioning information of the current position;
wherein the first acquiring means comprises:
the measuring device is used for measuring a downlink pilot signal of a base station to obtain the arrival time and the arrival time difference of the downlink pilot signal;
basic positioning information determining means for determining the basic positioning information based on the arrival time, the arrival time difference and the coordinates of the base station;
wherein the first positioning device comprises:
feature recognition means for recognizing a feature of the building from the information relating to the object;
identification means for determining from a database of features a building matching the features to identify the name of the building.
8. The apparatus of claim 7, wherein the basic positioning information of the current location comprises a longitude and a latitude of the current location.
9. The apparatus of claim 7, wherein the information related to the target comprises a photograph or video of a building with a particular sign, a road sign.
10. The apparatus of claim 9, wherein the first positioning device further comprises:
and the query unit is used for acquiring a plurality of positioning information of the building based on the identified name of the building.
11. The apparatus of claim 10, wherein the feature recognition means comprises:
the first identification subunit is used for identifying the characteristics of the building with the specific mark by adopting an image identification technology on the photo of the building; or
And the second identification subunit is used for identifying the characteristics of the building with the specific mark by adopting a video identification technology on the video of the building.
12. The apparatus of claim 10, wherein the query unit is configured to query an address information database for a plurality of location information of the building based on the identified name of the building.
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| CN201811347305.4A CN109286893B (en) | 2015-01-20 | 2015-01-20 | Positioning method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510028638.0A CN104581637A (en) | 2015-01-20 | 2015-01-20 | Positioning method and device |
| CN201811347305.4A CN109286893B (en) | 2015-01-20 | 2015-01-20 | Positioning method and device |
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| CN201510028638.0A Division CN104581637A (en) | 2015-01-20 | 2015-01-20 | Positioning method and device |
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| CN109286893A CN109286893A (en) | 2019-01-29 |
| CN109286893B true CN109286893B (en) | 2022-03-08 |
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| CN104869634B (en) * | 2015-04-30 | 2019-03-01 | 百度在线网络技术（北京）有限公司 | The modification method and device of positioning result |
| CN105451179A (en) * | 2015-12-25 | 2016-03-30 | 百度在线网络技术（北京）有限公司 | Positioning method and device |
| CN105578214A (en) * | 2016-02-05 | 2016-05-11 | 尼尔森网联媒介数据服务有限公司 | Digital media terminal geographic position determination method and device |
| CN106153047A (en) * | 2016-08-15 | 2016-11-23 | 广东欧珀移动通信有限公司 | A kind of indoor orientation method, device and terminal |
| CN106357974B (en) * | 2016-08-26 | 2019-06-07 | 深圳市沃特沃德股份有限公司 | The method and apparatus for recording pet position |
| CN116086470A (en) * | 2017-03-24 | 2023-05-09 | 北京嘀嘀无限科技发展有限公司 | Method and device for acquiring destination |
| WO2019028809A1 (en) * | 2017-08-11 | 2019-02-14 | 深圳配天智能技术研究院有限公司 | Traffic data processing method and vehicle-mounted client |
| CN109086745A (en) * | 2018-08-31 | 2018-12-25 | 广东工业大学 | A kind of localization method, device, equipment and computer readable storage medium |
| CN110954064A (en) * | 2018-09-27 | 2020-04-03 | 北京嘀嘀无限科技发展有限公司 | Positioning method and positioning device |
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| CN104581637A (en) | 2015-04-29 |
| CN109286893A (en) | 2019-01-29 |
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