CN108243495A - A kind of location fingerprint database building method, device and method of locating terminal - Google Patents
A kind of location fingerprint database building method, device and method of locating terminal Download PDFInfo
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- CN108243495A CN108243495A CN201611207165.1A CN201611207165A CN108243495A CN 108243495 A CN108243495 A CN 108243495A CN 201611207165 A CN201611207165 A CN 201611207165A CN 108243495 A CN108243495 A CN 108243495A
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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
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0252—Radio frequency fingerprinting
Abstract
The application discloses a kind of location fingerprint library method for building up, device and method of locating terminal.This method carries out rasterizing processing to positioning area first, and obtains the location information of each grid.And then reception Cell level information of location information and mobile terminal of the mobile terminal in different location on different location is obtained from Mobile Server, to determine multiple sample fingerprints.It is then based on the corresponding grid of the location information of the sample fingerprint sample fingerprint.Further, it according to the reception Cell level information of sample fingerprints all in grid, determines the reception Cell level information of the grid, so as to the location information for receiving Cell level information and the grid according to the grid, establishes location fingerprint database.The present invention is based on the location informations and reception Cell level information got from Mobile Server to establish location fingerprint database, and the really degree of data is high, thus the precision higher for the location fingerprint data established, and can effectively improve the positioning accuracy of mobile terminal.
Description
Technical field
This application involves the communications field, more specifically to a kind of location fingerprint database building method, device and end
End locating method.
Background technology
The multipath transmisstion of signal has dependence to environment, shows very strong particularity, for each position,
The multidiameter configuration of channel is unique in this position, and the radio wave of terminal transmission generates and surrounding ring by reflection and refraction
The closely related AD HOC in border mostly through signal, such multipath characteristics can consider " fingerprint " of the position
The core concept of Indoor Position Techniques Based on Location Fingerprint is by obtaining different location information and receiving in the position
Location fingerprint establishes database, and the location fingerprint being an actually-received is compared with the sample fingerprint in database, so as to real
Now to the positioning of target.
At present usually different location is calculated using radio signal propagation theoretical model in location fingerprint database is established
Signal strength, and location fingerprint database is established according to result of calculation, however this method is difficult with theoretical model and perfectly retouches
State propagation characteristic of the wireless signal indoors in complex environment, thus the theoretical calculation of signal strength differed with actual sample value compared with
Greatly, thus its accurately location fingerprint database that can not establish, so as to cause running fix precision relatively low.
Invention content
In view of this, the application provides a kind of location fingerprint database building method, device and method of locating terminal, to carry
The positioning accuracy of high mobile terminal.
To achieve these goals, it is proposed that scheme it is as follows：
A kind of location fingerprint database building method, including：
A kind of location fingerprint database building method, including：
Rasterizing processing is carried out, and obtain the location information of each grid to positioning area；
Obtain reception cell electricity of location information and mobile terminal of the mobile terminal in different location on different location
Ordinary mail ceases, to determine multiple sample fingerprints of the mobile terminal on different location, wherein the reception Cell level information includes：
Base station and base station level；
Location information and the grid positions information based on the sample fingerprint, determine the corresponding grid of the sample fingerprint
Lattice；
According to the reception Cell level information of sample fingerprints all in the grid, the reception cell electricity of the grid is determined
Ordinary mail ceases；
According to the location information for receiving Cell level information and the grid of the grid, location fingerprint data are established
Library.
Preferably, the location information and mobile terminal for obtaining mobile terminal in different location is in different location
On reception Cell level information, with determine multiple sample fingerprints, including：
It obtains mobile terminal and is uploaded to the XDR data of server and MR test report, wherein the XDR data include：With
Family temporary identifier, business time of origin and terminal are uploaded to the URL of server, and the MR test report includes：User marks temporarily
Know, call time reception Cell level information corresponding with terminal in test report；
The URL is parsed, determines location information of the mobile terminal in different location；
Based on user's temporary identifier, the business time of origin and the test report uplink time, described in matching
XDR data packets and the MR test report, to determine multiple sample fingerprints.
Preferably, the reception Cell level information according to sample fingerprints all in the grid, determines the grid
Reception Cell level information, including：
Determine the corresponding base station level in all base stations included in all sample fingerprints and each base station；
Using the base station that all sample fingerprints include as the base station of the grid；
By the corresponding base station level of different base station and the respective base station level average of same base, as the grid
The corresponding base station level in each base station of lattice.
Preferably, it is described that the URL is parsed, determine location information of the mobile terminal in different location, including：
The URL is identified based on position identification character, determines all location informations included in the URL, institute
Rheme is put identification character and is included：Longitude identifies character and latitude identification character；
All location informations included in the URL are filtered, determine the location information within a preset range；
The location information within a preset range is matched based on current location identification character, determines the movement
The location information of terminal.
A kind of location fingerprint Database device, including：
Grid processing unit for carrying out rasterizing processing to positioning area, and obtains the location information of each grid；
Information acquisition unit, for obtaining location information and mobile terminal of the mobile terminal in different location in difference
Reception Cell level information on position, to determine multiple sample fingerprints of the mobile terminal on different location, wherein described connect
Area's level information is zoomed in include：Base station and base station level；
Sample fingerprint matching unit, for the location information based on the sample fingerprint and the grid positions information, really
Determine the corresponding grid of the sample fingerprint；
Grid characteristics determining unit, for the reception Cell level information according to sample fingerprints all in the grid, really
The reception Cell level information of the fixed grid；
Database unit is believed for the position for receiving Cell level information and the grid according to the grid
Breath, establishes location fingerprint database.
Preferably, described information collecting unit includes：
Data acquisition module is uploaded to the XDR data of server and MR test report, wherein institute for obtaining mobile terminal
XDR data are stated to include：User's temporary identifier, business time of origin and terminal are uploaded to the URL of server, the MR test report
Including：Call time reception Cell level information corresponding with terminal in user's temporary identifier, test report；
Data resolution module for being parsed to the URL, determines location information of the mobile terminal in different location；
Data match module, for being based on user's temporary identifier, the business time of origin and the test report
Uplink time matches the XDR data packets and the MR test report, to determine multiple sample fingerprints.
Preferably, the grid characteristics determining unit includes：
Base station determining module, for determining the corresponding base in all base stations included in all sample fingerprints and each base station
It stands level；
Grid characteristic determination module, will not for the base station using the base station that all sample fingerprints include as the grid
With the corresponding base station level in base station and the respective base station level average of same base, each base station as the grid
Corresponding base station level.
Preferably, the data resolution module includes：
First character recognition submodule is identified the URL for being based on longitude and latitude identification character, determines described
All location informations included in URL, the position identification character include：Longitude identifies character and latitude identification character；
Location information filter submodule for being filtered to all location informations included in the URL, determines described
Location information within a preset range；
Second character recognition submodule, for identifying that character believes the position within a preset range based on current location
Breath is matched, and determines the location information of the mobile terminal.
A kind of method of locating terminal, including：
Obtain the reception Cell level information that terminal is uploaded to server；
Comparing any one right in the reception Cell level information of the terminal and claim 1 to claim 4 will
The reception Cell level information of each grid in the location fingerprint database is sought, has been obtained with the terminal feature similarity most
High grid；
Using the location information of the highest grid of the characteristic similarity as the position of the terminal.
Preferably, it is arbitrary in the reception Cell level information of the terminal and claim 1 to claim 4
The reception Cell level information of each grid in location fingerprint database described in one claim has obtained and terminal spy
The highest grid of similarity is levied, including：
The terminal and the characteristic similarity of each grid are calculated based on preset formula；
Wherein, the preset formula is：
Wherein, P is characterized similarity, and f is just too distribution function, RiRepresent base station in the reception Cell level information of terminal
The level of i,Represent the level for receiving base station j in Cell level information of grid, M represents the number of the corresponding base station of grid, N
Represent the number of the corresponding base station of terminal, η is preset constant.
As can be seen from the above technical solutions, the application discloses a kind of location fingerprint library method for building up, device and terminal positioning
Method.This method carries out rasterizing processing to positioning area first, and obtains the location information of each grid.And then it is taken from mobile
It is engaged in obtaining reception Cell level of location information and mobile terminal of the mobile terminal in different location on different location in device
Information, to determine multiple sample fingerprints.It is then based on the corresponding grid of the location information of the sample fingerprint sample fingerprint.Into one
Step, according to the reception Cell level information of sample fingerprints all in grid, determines the reception Cell level information of the grid, from
And according to the location information for receiving Cell level information and the grid of the grid, establish location fingerprint database.With showing
There is technology to compare, the present invention is based on the location informations and reception Cell level information got from Mobile Server to establish position
Fingerprint database, the precision higher of the location fingerprint data, thus the positioning accuracy of mobile terminal can be effectively improved.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 shows a kind of flow signal of method for building up of location fingerprint database disclosed in one embodiment of the invention
Figure；
Fig. 2 shows the flow diagrams of URL analytic methods a kind of disclosed in another embodiment of the present invention
Fig. 3 shows that a kind of structure for establishing device of location fingerprint database is shown disclosed in another embodiment of the present invention
It is intended to；
Fig. 4 shows a kind of flow diagram of the localization method of mobile terminal disclosed in another embodiment of the present invention；
Fig. 5 shows a kind of normal distyribution function disclosed by the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
A kind of flow of the method for building up of location fingerprint database disclosed in one embodiment of the invention is shown referring to Fig. 1
Schematic diagram.
As shown in Figure 1, the present invention includes：
S101：Rasterizing processing is carried out, and obtain the location information of each grid to positioning area.
The acquisition of localization region fingerprint, it is necessary first to by localization region rasterizing, according to the latitude and longitude information in region, by net
Network overlay area is divided into area grid set, and a latitude and longitude information for recording each grid element center and four sides.
By the maximum longitude and latitude for specifying network's coverage area and minimum longitude and latitude, the side of grid is provided according to actual conditions
It is long, the geography information of each grid, abscissa, ordinate including grid, minimum longitude, minimum latitude, maximum can be obtained
Longitude, maximum latitude, center latitude and center latitude and grid number.
S102：Obtain reception of location information and mobile terminal of the mobile terminal in different location on different location
Cell level information, to determine multiple sample fingerprints, wherein the reception Cell level information includes：Base station and base station electricity
It is flat.
It specifically includes：It obtains mobile terminal and is uploaded to the XDR data of server and MR test report.
The XDR data include：User's temporary identifier, business time of origin and terminal are uploaded to the URL of server.
The MR test report includes：Call time reception cell electricity corresponding with terminal in user's temporary identifier, test report
Ordinary mail ceases.
It is small about terminal, user's temporary identifier, URL, reception by being matched to obtain to XDR data and MR test report
The data packet of area's level information.
Then, UPL is parsed, location information of the mobile terminal in different location is determined, so that it is determined that including position
Information and the sample fingerprint for receiving Cell level information.
S103：Location information and the grid positions information based on the sample fingerprint, determine the sample fingerprint pair
The grid answered.
Under the premise of the location information of sample fingerprint is got, the grid of each sample fingerprint can be matched, so as to
Determine position of each sample fingerprint in grid.
S104：According to the reception Cell level information of sample fingerprints all in the grid, the reception of the grid is determined
Cell level information.
For any grid, it is first determined the number of sample fingerprint included in the grid.And then it determines each
The corresponding base station of sample fingerprint and base station level, using all base stations that each sample fingerprint includes as the base of the grid
It stands.
In the base station level of each base station of computation grid, for the average value of identical base station calculation base station level,
Using the average value as the base station level of the base station, so that it is determined that the reception Cell level of grid.
S105：According to the location information for receiving Cell level information and the grid of the grid, location fingerprint is established
Database.
As seen from the above embodiment, the application discloses a kind of location fingerprint library method for building up.This method is first to positioning area
Rasterizing processing is carried out, and obtains the location information of each grid.And then mobile terminal is obtained from Mobile Server in difference
Reception Cell level information of the location information and mobile terminal of position on different location, to determine multiple sample fingerprints.
It is then based on the corresponding grid of the location information of the sample fingerprint sample fingerprint.Further, according to sample fingerprints all in grid
Reception Cell level information, the reception Cell level information of the grid is determined, so as to the reception cell according to the grid
The location information of level information and the grid establishes location fingerprint database.Compared with prior art, the present invention is based on from shifting
The location information and reception Cell level information got in dynamic server establishes location fingerprint database, the location fingerprint data
Precision higher, thus the positioning accuracy of mobile terminal can be effectively improved.
Referring to Fig. 2 shows the flow diagrams of URL analytic methods a kind of disclosed in another embodiment of the present invention.
As shown in Figure 2, this method includes：
S201：It obtains mobile terminal and is uploaded to the XDR data of server and MR test report, and XDR data and MR are surveyed
Examination report is matched.
Wherein, the main information that XDR data include:Terminal, user's temporary identifier, business time of origin, HOST, URL.MR
The main information that measurement report includes:It calls time in user's temporary identifier, test, receive Cell level information.
Based on calling time in user's temporary identifier, business time of origin and test report to XDR data and MR test report
It is matched, is finally obtained comprising terminal, user's temporary identifier, HOST, URL, the data packet for receiving Cell level information.
S202：URL is identified based on position identification character, determines all location informations included in URL.
The position identification character includes：Longitude identifies character, such as lng=, slon=and latitude identification character lat
=, slat=etc..
S203：All location informations included in the URL are filtered, determine the position within a preset range
Information.
It should be noted that the location information included in URL is not necessarily the location information of mobile terminal itself, it is possible to
It is the location information for the other positions that mobile terminal is retrieved.For example, user network about vehicle when, be uploaded to the URL of server
In the location information that includes include：The location information of location information and the net about vehicle of user itself.
For this reason, it may be necessary to be filtered to the position included in URL, which belongs in the location information included with determining URL
In the location information of mobile terminal.
Specifically, the location information that URL is included can be screened based on the longitude and latitude range in city where mobile terminal,
The longitude and latitude range in city, illustrates that the location information is not where if the location information included in URL has exceeded mobile terminal
The position information of mobile terminal.
In addition, the location information in the URL can be screened based on the base station position of mobile terminal, such as beyond clothes
Location information other than 10 kilometers of base station of business, it is determined that the location information is not the position information of mobile terminal.
S204：The location information within a preset range is matched based on current location identification character, determines institute
State the location information of mobile terminal.
Further, identify that character matches location information by current location, so that it is determined that the position of mobile terminal
Information.
It in practical applications, can be multiple comprising mobile whole to server transmission beforehand through the positioning software on mobile terminal
The URL of current location information is held, analyze the URL, so as to obtain the spcial character in the URL, as present bit
Put identification character.
Show that the structural representation of device is established in a kind of location fingerprint library disclosed in another embodiment of the present invention referring to Fig. 3
Figure.
As shown in Figure 2, which includes：Grid processing unit 1, information acquisition unit 2,3 and of sample fingerprint matching unit
Database unit 4.
Grid processing unit 1 is used to carry out rasterizing processing to positioning area, and obtain the location information of each grid.
Information acquisition unit 2 is used to obtain location information and mobile terminal of the mobile terminal in different location in difference
Reception Cell level information on position, to determine multiple sample fingerprints, wherein the reception Cell level information includes：Base station
And base station level.
Specifically, the information acquisition unit 2 includes：
Data acquisition module is uploaded to the XDR data of server and MR test report, wherein institute for obtaining mobile terminal
XDR data are stated to include：User's temporary identifier, business time of origin and terminal are uploaded to the URL of server, the MR test report
Including：Call time reception Cell level information corresponding with terminal in user's temporary identifier, test report.
Data resolution module for being parsed to the UPL, determines location information of the mobile terminal in different location.
Wherein, the data resolution module includes：
First character recognition submodule is identified the URL for being based on longitude and latitude identification character, determines described
All location informations included in URL, the position identification character include：Longitude identifies character and latitude identification character；
Location information filter submodule for being filtered to all location informations included in the URL, determines described
Location information within a preset range；
Second character recognition submodule, for identifying that character believes the position within a preset range based on current location
Breath is matched, and determines the location information of the mobile terminal.
Data match module, for being based on user's temporary identifier, the business time of origin and the test report
Uplink time matches the XDR data packets and the MR test report, to determine multiple sample fingerprints.
Sample fingerprint matching unit 3 is used for location information and the grid positions information based on the sample fingerprint, really
Determine the corresponding grid of the sample fingerprint.
Grid characteristics determining unit 4 is used for the reception Cell level information according to sample fingerprints all in the grid, really
The reception Cell level information of the fixed grid.
Grid characteristics determining unit includes：
Base station determining module, for determining the corresponding base in all base stations included in all sample fingerprints and each base station
It stands level；
Grid characteristic determination module, will not for the base station using the base station that all sample fingerprints include as the grid
With the respective base station of the corresponding base station level in base station and same base electricity
Database unit 5 is believed for the position for receiving Cell level information and the grid according to the grid
Breath, establishes location fingerprint database.
It should be noted that need in practical applications based on the location fingerprint database of above-mentioned foundation to mobile terminal into
Row positioning.
For this purpose, show a kind of flow of mobile terminal locating method disclosed in another embodiment of the present invention referring to Fig. 3
Schematic diagram.
This method includes：
S301：Obtain the reception Cell level information that mobile terminal is uploaded in the MR test report of server.
S302：The reception for receiving each grid in Cell level information and location fingerprint database for comparing mobile terminal is small
Area's level information, to obtain and the highest grid of terminal feature similarity.
It is given the correct time on magnanimity MR according to the feature vector (base station level) and grid for calculating every MR data
Feature vector (base station level) similarity P：
Wherein, the preset formula is：
Wherein, P is characterized similarity, and f is normal distyribution function (referring to Fig. 5), RiRepresent the reception Cell level of terminal
The level of base station i in information,Represent the level for receiving base station j in Cell level information of grid, M represents the corresponding base of grid
The number stood, N represent the number of the corresponding base station of terminal, and η is preset constant.
S103：Using the location information of the highest grid of the characteristic similarity as the position of the terminal.
It should be noted that the system embodiment is corresponding with embodiment of the method, implementation procedure is identical with implementation principle,
Therefore not to repeat here.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (10)
1. a kind of location fingerprint database building method, which is characterized in that including：
Rasterizing processing is carried out, and obtain the location information of each grid to positioning area；
Obtain reception Cell level letter of location information and mobile terminal of the mobile terminal in different location on different location
Breath, to determine multiple sample fingerprints of the mobile terminal on different location, wherein the reception Cell level information includes：Base station
And base station level；
Location information and the grid positions information based on the sample fingerprint, determine the corresponding grid of the sample fingerprint；
According to the reception Cell level information of sample fingerprints all in the grid, the reception Cell level letter of the grid is determined
Breath；
According to the location information for receiving Cell level information and the grid of the grid, location fingerprint database is established.
2. according to the method described in claim 1, it is characterized in that, the acquisition mobile terminal is believed in the position of different location
The reception Cell level information of breath and mobile terminal on different location, to determine multiple sample fingerprints, including：
It obtains mobile terminal and is uploaded to the XDR data of server and MR test report, wherein the XDR data include：User faces
When mark, business time of origin and terminal be uploaded to the URL of server, the MR test report includes：User's temporary identifier is surveyed
Try report reporting time and the corresponding reception Cell level information of terminal；
The URL is parsed, determines location information of the mobile terminal in different location；
Based on user's temporary identifier, the business time of origin and the test report uplink time, the XDR numbers are matched
According to packet and the MR test report, to determine multiple sample fingerprints.
3. the according to the method described in claim 1, it is characterized in that, reception according to sample fingerprints all in the grid
Cell level information determines the reception Cell level information of the grid, including：
Determine the corresponding base station level in all base stations included in all sample fingerprints and each base station；
Using the base station that all sample fingerprints include as the base station of the grid；
By the corresponding base station level of different base station and the respective base station level average of same base, as the grid
The corresponding base station level in each base station.
4. according to the method described in claim 2, it is characterized in that, described parse the URL, determine that mobile terminal exists
The location information of different location, including：
The URL is identified based on position identification character, determines all location informations included in the URL, institute's rheme
Identification character is put to include：Longitude identifies character and latitude identification character；
All location informations included in the URL are filtered, determine the location information within a preset range；
The location information within a preset range is matched based on current location identification character, determines the mobile terminal
Location information.
5. a kind of location fingerprint Database device, which is characterized in that including：
Grid processing unit for carrying out rasterizing processing to positioning area, and obtains the location information of each grid；
Information acquisition unit, for obtaining location information and mobile terminal of the mobile terminal in different location in different location
On reception Cell level information, to determine multiple sample fingerprints of the mobile terminal on different location, wherein it is described receive it is small
Area's level information includes：Base station and base station level；
Sample fingerprint matching unit for the location information based on the sample fingerprint and the grid positions information, determines institute
State the corresponding grid of sample fingerprint；
Grid characteristics determining unit for the reception Cell level information according to sample fingerprints all in the grid, determines institute
State the reception Cell level information of grid；
Database unit for the location information for receiving Cell level information and the grid according to the grid, is built
Vertical location fingerprint database.
6. device according to claim 5, which is characterized in that described information collecting unit includes：
Data acquisition module is uploaded to the XDR data of server and MR test report, wherein described for obtaining mobile terminal
XDR data include：User's temporary identifier, business time of origin and terminal are uploaded to the URL of server, the MR test report packet
It includes：Call time reception Cell level information corresponding with terminal in user's temporary identifier, test report；
Data resolution module for being parsed to the URL, determines location information of the mobile terminal in different location；
Data match module uploads for being based on user's temporary identifier, the business time of origin and the test report
Time matches the XDR data packets and the MR test report, to determine multiple sample fingerprints.
7. device according to claim 5, which is characterized in that the grid characteristics determining unit includes：
Base station determining module, for determining the corresponding base station electricity in all base stations included in all sample fingerprints and each base station
It is flat；
Grid characteristic determination module, for the base station using the base station that all sample fingerprints include as the grid, by different bases
It stands corresponding base station level and the respective base station level average of same base, each base station as the grid corresponds to
Base station level.
8. device according to claim 6, which is characterized in that the data resolution module includes：
First character recognition submodule is identified the URL for being based on longitude and latitude identification character, determines in the URL
Comprising all location informations, position identification character includes：Longitude identifies character and latitude identification character；
Location information filter submodule for being filtered to all location informations included in the URL, determines described pre-
If the location information in range；
Second character recognition submodule, for based on current location identify character to the location information within a preset range into
Row matching determines the location information of the mobile terminal.
9. a kind of method of locating terminal, which is characterized in that including：
Obtain the reception Cell level information that terminal is uploaded to server；
Compare any one claim institute in the reception Cell level information of the terminal and claim 1 to claim 4
Rheme puts the reception Cell level information of each grid in fingerprint database, highest with the terminal feature similarity to obtain
Grid；
Using the location information of the highest grid of the characteristic similarity as the position of the terminal.
10. the according to the method described in claim 9, it is characterized in that, reception Cell level information of the terminal
It is small with the reception of each grid in location fingerprint database described in any one claim in claim 1 to claim 4
Area's level information, with obtain with the highest grid of terminal feature similarity, including：
The terminal and the characteristic similarity of each grid are calculated based on preset formula；
Wherein, the preset formula is：
Wherein, P is characterized similarity, and f is just too distribution function, RiRepresent the electricity for receiving base station i in Cell level information of terminal
It is flat,Represent the level for receiving base station j in Cell level information of grid, M represents the number of the corresponding base station of grid, and N is represented
The number of the corresponding base station of terminal, η are preset constant.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109640271A (en) * | 2018-12-18 | 2019-04-16 | 成都方未科技有限公司 | A kind of method of Block Characteristic fingerprint recognition |
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| CN109711133A (en) * | 2018-12-26 | 2019-05-03 | 广州市巽腾信息科技有限公司 | Authentication method, device and the server of identity information |
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| CN112291706A (en) * | 2020-10-27 | 2021-01-29 | 浪潮天元通信信息系统有限公司 | Network optimization method based on big data and artificial intelligence |
| CN116680468A (en) * | 2022-09-28 | 2023-09-01 | 荣耀终端有限公司 | Fingerprint library generation method and electronic equipment |
| CN116680468B (en) * | 2022-09-28 | 2024-03-22 | 荣耀终端有限公司 | Fingerprint library generation method and electronic equipment |
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