CN104486722B - The appraisal procedure and device of positioning result - Google Patents
The appraisal procedure and device of positioning result Download PDFInfo
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- CN104486722B CN104486722B CN201410766414.5A CN201410766414A CN104486722B CN 104486722 B CN104486722 B CN 104486722B CN 201410766414 A CN201410766414 A CN 201410766414A CN 104486722 B CN104486722 B CN 104486722B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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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
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- H04W4/029—Location-based management or tracking services
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Abstract
The embodiment of the invention provides a kind of appraisal procedure of positioning result and devices.The described method includes: obtaining positioning log；GPS positioning data and positioning scan data are extracted from the positioning log；According to positioning scan data, by positioning strategy, the database under line obtains communication location data, and database includes the standard setting data prestored under the line；The communication location data is compared to obtain assessment result with the GPS positioning data according to evaluation metrics.The appraisal procedure and device of positioning result through the embodiment of the present invention lower online just can assess not online positioning service, to obtain the Contrast on effect of new and old positioning service, while reduce online rear ineffective risk.
Description
Technical Field
The present invention relates to the field of positioning processing technologies, and in particular, to a method and an apparatus for evaluating a positioning result.
Background
With the rapid development of scientific technology, the attention of people is increasing for location-based services, the applications of the services in intelligent transportation, emergency rescue, property monitoring and the like are quite common, and the basis for providing the services is positioning technology.
Currently, positioning technologies can be classified into GPS-based positioning technologies, wifi-based positioning technologies, and mobile cellular network-based positioning technologies. The existing positioning service is realized based on the positioning technology, however, the positioning service of a new version can know the good and bad positioning effect only after the positioning service is on line, so that the risk of poor effect after the positioning service is on line is higher.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method and an apparatus for evaluating a positioning result, so as to solve the problem that a positioning result of an offline positioning service can be evaluated, thereby obtaining a comparison between the effects of old and new positioning services, and reducing the risk of poor effect after online positioning.
In order to achieve the above object, an embodiment of the present invention provides a method for evaluating a positioning result, including: acquiring a positioning log; extracting GPS positioning data and positioning scanning data from the positioning log; acquiring communication positioning data from an offline database through a positioning strategy according to positioning scanning data, wherein the offline database comprises prestored standard positioning data; and comparing the communication positioning data with the GPS positioning data according to the evaluation index to obtain an evaluation result.
The embodiment of the invention also provides an evaluation device for the positioning result, which comprises: the positioning log obtaining module is used for obtaining a positioning log; the positioning evaluation data extraction module is used for extracting GPS positioning data and positioning scanning data from the positioning log; the communication positioning data acquisition module is used for acquiring communication positioning data from an offline database through a positioning strategy according to the positioning scanning data; and the evaluation result generation module is used for comparing the communication positioning data with the GPS positioning data according to evaluation indexes to obtain an evaluation result.
According to the method and the device for evaluating the positioning result, the GPS positioning data and the positioning scanning data are extracted from the acquired positioning log, the communication positioning data are acquired from the offline database through the positioning strategy according to the positioning scanning data, the communication positioning data and the GPS positioning data are compared according to the evaluation index, the evaluation result is finally obtained, the positioning service which is not online can be evaluated online, the effect comparison of the new positioning service and the old positioning service is obtained, and meanwhile, the risk of poor effect after online is reduced.
Drawings
FIG. 1 is a basic functional block diagram of an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for evaluating a positioning result according to a first embodiment of the present invention;
fig. 3 is a diagram illustrating an example of an evaluation result of a positioning result evaluation according to positioning accuracy according to a first embodiment of the present invention;
FIG. 4 is a diagram illustrating an example of evaluation results of positioning result evaluation according to a positioning bad case rate according to a first embodiment of the present invention;
fig. 5 is a diagram illustrating an example of evaluation results of positioning result evaluation according to positioning success rate according to a first embodiment of the present invention;
fig. 6 is a logic block diagram showing an evaluation device of a positioning result according to the second embodiment of the present invention.
Detailed Description
The basic idea of the invention is to provide a method and a device for offline evaluation of positioning data acquired by a positioning module: through extracting GPS positioning data and positioning scanning data from the location log who obtains, again according to positioning scanning data through the location strategy from off-line database acquisition communication positioning data, finally carry out the comparison with communication positioning data and GPS positioning data according to the evaluation index, obtain the assessment result to solve off-line just can assess the positioning result of not going on-line location service, thereby obtain the contrast of new and old positioning service's effect, reduced the not good risk of effect after going on-line.
Fig. 1 is a basic functional block diagram of an embodiment of the present invention. Referring to fig. 1, firstly, sampling a large number of positioning logs to obtain the positioning logs; secondly, extracting GPS positioning data and positioning scanning data from the positioning log, wherein the GPS positioning data comprises longitude and latitude data of a position, and the positioning scanning data comprises scanning data for positioning by utilizing wifi and scanning data for positioning by utilizing a base station; thirdly, acquiring communication positioning data from an offline database through a positioning strategy according to the positioning scanning data, wherein the communication positioning data also comprises longitude and latitude data of the position, and the offline database comprises prestored standard positioning data; and finally, comparing the communication positioning data with the GPS positioning data according to the evaluation index to finally obtain an evaluation result.
The following describes a positioning result evaluation method and apparatus in detail in accordance with an embodiment of the present invention with reference to the accompanying drawings.
Example one
Fig. 2 is a flowchart illustrating a method for evaluating a positioning result according to a first embodiment of the present invention. The method may be performed on a server, such as a location service. The method comprises the following steps:
step 101: and acquiring a positioning log.
Specifically, a location log can be obtained from each machine or several machines can be randomly extracted from each machine room, and a location log can be obtained from each machine, so as to ensure the diversity of data.
For example, the obtained positioning log sample is as follows: NONOTES 10-1718: 24:33: loc 18631[ logic: 2416100588] [ proctive: ] [ reqsvr: ] ] [ cmdno: ] [ svrname: ] ] [ errno: ] [ ] [ reqip: 127.0.1 ] [ imei: y __ |0] query [ & ll [ & 103.85615| -13.36266 & cl [ & 456| -6 |3021|169094& cu ═ Raaz7lqFyep2gcNzH7YLDf5tDqi-dpQoptvu8XMdUl-1o4 szMumEwvafS | rgdxSh 9REKx0R73 QBwWwWf 6t7 IEjUz 3cLErC |0& wf 9 a; 65; l 08bd43865d6 a; 67; l 72c 714534178; 70; l 0c722c1ec 856; 70; and (b) result [ { point ": {" x ": 103.857725", "y": 13.361216 "}). The fields of primary interest are: ll is the longitude and latitude of GPS positioning, wf is the wifi list scanned by the current user, cl is the base station information, result information, and x and y are the longitude and latitude data of positioning.
Step 102: and extracting the GPS positioning data and the positioning scanning data from the positioning log.
After the acquisition of the positioning log in step 101, as mentioned above, the GPS positioning data and the positioning scan data can be extracted from the positioning log, and according to the preferred embodiment of the present invention, the positioning scan data can include, but is not limited to, wifi scan data and/or base station scan data.
Step 103: and acquiring communication positioning data from an offline database through a positioning strategy according to the positioning scanning data, wherein the offline database comprises prestored standard positioning data.
Specifically, for example, the data samples in the offline database are as follows: the field before the space of 0|0|4318|213521&116.44&39.9080&0&0&2014-10-23 is the password of the base station or wifi, and the field after the space is longitude, latitude, radius, signal strength and time with & segmentation, respectively.
According to the preferred embodiment of the present invention, in step 103, the communication location data is obtained from the offline database through the MAC address or the base station identifier in the location scan data.
Specifically, the positioning scanning data may be analyzed to obtain an MAC address list or a base station identifier list, coordinate data and signal strength data corresponding to the MAC address or the base station identifier in the MAC address list or the base station identifier list may be obtained from the offline database, and the geometric center point may be calculated according to the coordinate data and the signal strength data corresponding to the MAC address or the base station identifier to obtain the communication positioning data. The positioning strategy is not limited to the method described in this patent, and other related positioning strategies may be used to obtain the communication positioning data from the offline database.
Step 104: and comparing the communication positioning data with the GPS positioning data according to the evaluation index to obtain an evaluation result.
Specifically, according to the concept of the invention, the communication positioning data and the GPS positioning data can be compared according to the evaluation index, and finally the evaluation result is obtained. As previously mentioned, the evaluation metrics may include, but are not limited to, at least one of: positioning accuracy, bad case positioning rate and positioning success rate.
For example, the evaluation index may include a positioning accuracy, and step 104 may include: and calculating deviation data of the communication positioning data and the GPS positioning data, and obtaining an evaluation result according to the deviation data. Specifically, the GPS positioning data comprises longitude and latitude data, the communication positioning data also comprises longitude and latitude data, the GPS positioning data can be set as datum data, deviation data of the communication positioning data and the GPS positioning data is calculated, and then an evaluation result is obtained according to the deviation data. Fig. 3 shows an example of an evaluation result of the evaluation of the positioning result in terms of positioning accuracy.
As another example, the evaluation index includes a bad case rate, and step 104 may include: calculating deviation data of the communication positioning data and the GPS positioning data, taking the communication positioning data corresponding to the deviation data with the numerical value larger than the preset distance as a bad case, counting the number of the bad cases, and obtaining an evaluation result according to the number of the bad cases. Specifically, assuming that the predetermined distance is 100 meters, the communication positioning data corresponding to the deviation data having a value greater than 100 meters can be used as bad cases, and the evaluation result can be obtained according to the number of the bad cases. Fig. 4 shows an evaluation result example of evaluation of a positioning result in terms of a positioning bad case rate.
For another example, the evaluation index includes a positioning success rate, and step 104 may include: and counting the successfully positioned communication positioning data, and obtaining an evaluation result according to the communication positioning data. Specifically, the data of successful positioning of the base station or wifi may be counted, a positioning success rate is obtained according to the total number of the positioning requests, and then an evaluation result is obtained according to the communication positioning data, and fig. 5 shows an example of an evaluation result of the positioning result evaluation according to the positioning success rate.
By the method for evaluating the positioning result, the communication positioning data and the GPS positioning data can be compared according to the evaluation index, the evaluation result is finally obtained, the positioning result of the positioning service which is not on-line can be evaluated off-line, the effect comparison of new and old positioning services is obtained, and the risk of poor effect after on-line is reduced.
Example two
Fig. 6 is a logic block diagram showing an evaluation device of a positioning result according to the second embodiment of the present invention. Referring to fig. 6, the device for evaluating the positioning result includes a positioning log obtaining module 201, a positioning evaluation data extracting module 202, a communication positioning data obtaining module 203, and an evaluation result generating module 204.
The positioning log obtaining module 201 is configured to obtain a positioning log.
The positioning and evaluating data extracting module 202 is used for extracting GPS positioning data and positioning and scanning data from the positioning log. In particular, the positioning scan data may include wifi scan data and/or base station scan data.
The communication positioning data obtaining module 203 is configured to obtain communication positioning data from an offline database through a positioning policy according to the positioning scanning data.
Preferably, the communication positioning data acquiring module 203 is configured to acquire the communication positioning data from the offline database through the MAC address or the base station identifier in the positioning scan data.
Further, the communication positioning data obtaining module 203 is specifically configured to analyze the positioning scan data to obtain an MAC address list or a base station identifier list, obtain coordinate data and signal strength data corresponding to the MAC address or the base station identifier in the MAC address list or the base station identifier list from an offline database, and calculate a geometric center point according to the coordinate data and the signal strength data corresponding to the MAC address or the base station identifier to obtain the communication positioning data. .
The evaluation result generation module 204 is configured to compare the communication positioning data with the GPS positioning data according to an evaluation index to obtain an evaluation result. Preferably, the evaluation index comprises at least one of the following evaluation indexes: positioning accuracy, bad case positioning rate and positioning success rate.
Preferably, the evaluation index includes positioning accuracy, and the evaluation result generating module 204 is configured to calculate deviation data between the communication positioning data and the GPS positioning data, and obtain the evaluation result according to the deviation data.
Preferably, the evaluation index includes a bad case positioning rate, and the evaluation result generation module 204 is configured to calculate deviation data between the communication positioning data and the GPS positioning data, take the communication positioning data corresponding to the deviation data with a value greater than a predetermined distance as a bad case, count the number of the bad cases, and obtain the evaluation result according to the number of the bad cases.
Preferably, the evaluation index includes a positioning success rate, and the evaluation result generation module 204 is configured to count communication positioning data with successful positioning, and obtain the evaluation result according to the communication positioning data.
Through the evaluation device of this positioning result, can compare communication positioning data and GPS positioning data according to evaluating index, finally obtain the evaluation result to solve the off-line and just can assess the positioning result of not going on the production line location service, thereby obtain new and old positioning service's effect contrast, reduced the not good risk of effect after going on the production line.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware form, and can also be realized in a form of hardware and a software functional module.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a portable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. A method for evaluating a positioning result, the method comprising:
acquiring a positioning log;
extracting GPS positioning data and positioning scanning data from the positioning log;
acquiring communication positioning data from an offline database through a positioning strategy according to positioning scanning data, wherein the offline database comprises prestored standard positioning data;
comparing the communication positioning data with the GPS positioning data according to an evaluation index to obtain an evaluation result; wherein,
the communication positioning data is obtained from the offline database through the MAC address or the base station identifier in the positioning scanning data, and
the processing of obtaining the communication positioning data from the offline database through the MAC address or the base station identifier in the positioning scanning data comprises:
analyzing the positioning scanning data to obtain an MAC address list or a base station identification list,
acquiring coordinate data and signal strength data corresponding to the MAC addresses or the base station identifications in the MAC address list or the base station identification list from the offline database,
and calculating a geometric center point according to the coordinate data and the signal intensity data corresponding to the MAC address or the base station identifier to obtain the communication positioning data.
2. The evaluation method according to claim 1, wherein the positioning scan data comprises wifi scan data and/or base station scan data.
3. The evaluation method according to claim 1 or 2, wherein the evaluation index includes at least one of the following evaluation indexes: positioning accuracy, bad case positioning rate and positioning success rate.
4. The evaluation method according to claim 3, wherein the evaluation index includes positioning accuracy, and the processing of comparing the communication positioning data with the GPS positioning data according to the evaluation index to obtain the evaluation result includes:
and calculating deviation data of the communication positioning data and the GPS positioning data, and obtaining the evaluation result according to the deviation data.
5. The evaluation method according to claim 3, wherein the evaluation index includes a location bad case rate, and the processing of comparing the communication location data with the GPS location data according to the evaluation index to obtain an evaluation result comprises:
calculating deviation data of the communication positioning data and the GPS positioning data,
taking the communication positioning data corresponding to the deviation data with the numerical value larger than the preset distance as a bad case, counting the number of the bad cases,
and obtaining the evaluation result according to the number of the bad cases.
6. The evaluation method according to claim 3, wherein the evaluation index includes a positioning success rate, and the processing of comparing the communication positioning data with the GPS positioning data according to the evaluation index to obtain an evaluation result includes:
and counting the successfully positioned communication positioning data, and obtaining the evaluation result according to the communication positioning data.
7. An apparatus for evaluating a positioning result, the apparatus comprising:
the positioning log obtaining module is used for obtaining a positioning log;
the positioning evaluation data extraction module is used for extracting GPS positioning data and positioning scanning data from the positioning log;
the communication positioning data acquisition module is used for acquiring communication positioning data from an offline database through a positioning strategy according to the positioning scanning data;
the evaluation result generation module is used for comparing the communication positioning data with the GPS positioning data according to evaluation indexes to obtain an evaluation result; wherein,
the communication positioning data acquisition module is used for acquiring the communication positioning data from the offline database through the MAC address or the base station identifier in the positioning scanning data, and
the communication positioning data acquisition module is used for analyzing the positioning scanning data to obtain an MAC address list or a base station identification list, acquiring coordinate data and signal intensity data corresponding to the MAC address or the base station identification in the MAC address list or the base station identification list from the offline database, and calculating a geometric center point according to the coordinate data and the signal intensity data corresponding to the MAC address or the base station identification to obtain the communication positioning data.
8. The evaluation device of claim 7, wherein the localized scan data comprises wifi scan data and/or base station scan data.
9. The evaluation device according to claim 7 or 8, wherein the evaluation index comprises at least one of the following evaluation indexes: positioning accuracy, bad case positioning rate and positioning success rate.
10. The evaluation device according to claim 9, wherein the evaluation index includes positioning accuracy, and the evaluation result generation module is configured to calculate deviation data between the communication positioning data and the GPS positioning data, and obtain the evaluation result according to the deviation data.
11. The evaluation device according to claim 9, wherein the evaluation index includes a rate of locating bad cases, the evaluation result generation module is configured to calculate deviation data between the communication positioning data and the GPS positioning data, take the communication positioning data corresponding to the deviation data with a value greater than a predetermined distance as a bad case, count the number of the bad cases, and obtain the evaluation result according to the number of the bad cases.
12. The evaluation device according to claim 9, wherein the evaluation index includes a positioning success rate, and the evaluation result generation module is configured to count communication positioning data with successful positioning and obtain the evaluation result according to the communication positioning data.
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| CN105101075B (en) * | 2015-06-16 | 2019-03-19 | 百度在线网络技术（北京）有限公司 | The method and apparatus that the positioning result of target positioning application is evaluated and tested |
| CN105515877B (en) * | 2015-12-31 | 2019-04-19 | 四川秘无痕信息安全技术有限责任公司 | A kind of method of base station information in high efficiency extraction Android system log buffer area |
| CN106055651B (en) * | 2016-05-31 | 2019-07-12 | 四川秘无痕科技有限责任公司 | A kind of extracting method caching encryption Trace Data for high moral interface |
| CN113225685B (en) * | 2021-05-06 | 2023-03-28 | 建信云能数字科技有限公司 | Track error correction method, device, equipment and storage medium |
| CN113301648B (en) * | 2021-06-17 | 2023-02-28 | 北京红山信息科技研究院有限公司 | Fingerprint positioning evaluation method, device, equipment and storage medium |
| US12041510B2 (en) * | 2021-10-22 | 2024-07-16 | Juniper Networks, Inc. | Location metrics for monitoring or control of wireless networks |
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