CN103906226A - Adjacent terminal discovery method and device, terminal and server - Google Patents
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Abstract
The invention discloses an adjacent terminal discovery method and device, a terminal and a server, and relates to the technical field of mobile internet. The method comprises the following steps: a base station fingerprint and/or a WIFI fingerprint acquired by a terminal is received; the adjacent level of the terminal is calculated according to the base station fingerprint and/or the WIFI fingerprint acquired by the terminal; and the terminal is judged whether to be an adjacent terminal according to the adjacent level of the terminal and a preset threshold. The scheme aims at the existing problem that the terminal specific position cannot be acquired or the existing problem that the adjacent terminal discovery process cannot be performed because the terminal is not provided with a short distance wireless communication technical module, the method for discovering the adjacent terminal with the base station fingerprint and the WIFI fingerprint acquired by the terminal is provided, so the adjacent terminal can be discovered conveniently.
Description
Technical field
The present invention relates to mobile internet technical field, particularly a kind of adjacent terminals discover method, device, terminal and server.
Background technology
In the mobile Internet epoch, for the consideration of the aspects such as Information Sharing and safety, people often need to know with other adjacent terminal of terminal which has.As shared address list in mobile phone, note, picture, video etc. between friend; Carry small children and go on a tour, for preventing that child wanders away in the boundless and indistinct sea of faces, whether with oneself often need location child, etc.These application, all need to use adjacent terminals discovery technique.
The technology that realizes at present adjacent terminals discovery comprises:
(1) for example, by location technology (GPS(Global Positioning System, global positioning system), base station or WIFI(Wireless Fidelity, Wireless Fidelity) location etc.) obtain after the longitude and latitude of terminal, calculate distance to judge whether adjacent;
(2) rely on the short distance wireless communication technology (bluetooth, infrared, WI-FI Direct, NFC, ultrasonic wave etc.) to judge whether adjacent.
But there is following problem in these adjacent terminals discovery techniques:
(1) first method, obtains calculating after the longitude and latitude of terminal distance and judges whether adjacently by location technology, in the time cannot positioning to terminal (as indoor environment) or positioning precision not high (as architecture), cannot accomplish that adjacent terminals finds;
(2) second method, terminal need configure the short distance wireless communication technology module, and transmission range is short.In the time that terminal does not configure the short distance wireless communication technology module, cannot accomplish adjacent terminals discovery.
Summary of the invention
The present inventor finds to have problems in above-mentioned prior art, and has therefore proposed a kind of new technical scheme at least one problem in described problem.
An object of the present invention is to provide a kind of technical scheme of finding for adjacent terminals.
According to a first aspect of the invention, provide a kind of adjacent terminals discover method, having comprised: base station fingerprint and/or WIFI fingerprint that receiving terminal gathers; The described base station fingerprint gathering according to terminal and/or the adjacent degree of described WIFI fingerprint computing terminal; Whether adjacent according to the adjacent degree of terminal and default threshold decision terminal.
Alternatively, WIFI fingerprint comprises: WIFI access point (Access Point, AP) SSID(Service Set Identifier, service set), MAC(Media Access Control, medium access control) address, received signal strength (Received Signal Strength, RSS); And/or described base station fingerprint comprises: the cell ID (Cell-ID) of base station, received signal strength RSS, phase place.
Alternatively, comprise according to the adjacent degree of the described WIFI fingerprint computing terminal of terminal collection: if the WIFI SSID that two or more terminal is obtained is identical with MAC Address, be that WIFI signal source is identical, utilize the adjacent degree of received signal strength RSS data computing terminal, and the identical WIFI signal source that two or more terminals get is more, in the time that vicinity judges, weight is larger.
Alternatively, comprise according to the adjacent degree of the described base station fingerprint computing terminal of terminal collection: if the base station cell that two or more terminal is obtained mark Cell-ID is consistent, utilize the adjacent degree of received signal strength RSS data computing terminal.
Alternatively, comprise according to the adjacent degree of the described base station fingerprint of terminal collection and described WIFI fingerprint computing terminal: use the adjacent degree of described WIFI fingerprint computing terminal, the supplementary means that described base station fingerprint calculates as described WIFI fingerprint; In the undesirable situation of WIFI signal source, use the adjacent degree of base station fingerprint computing terminal.
Alternatively, comprise according to the adjacent degree of the described base station fingerprint of terminal collection and/or described WIFI fingerprint computing terminal: the described base station fingerprint gathering according to each terminal based on nearest neighbor method or k nearest neighbor method and/or the adjacent degree of described WIFI fingerprint computing terminal.
According to a further aspect in the invention, provide a kind of adjacent terminals to find device, comprising: fingerprint receiving element, the base station fingerprint and/or the WIFI fingerprint that gather for receiving terminal; Neighbourship degree computing unit, for according to terminal gather described base station fingerprint and/or the adjacent degree of described WIFI fingerprint computing terminal; Whether adjacent judging unit, for adjacent according to the adjacent degree of terminal and default threshold decision terminal.
Alternatively, WIFI fingerprint comprises: SSID, MAC Address, the signal strength signal intensity RSS of WIFI access point AP; And/or described base station fingerprint comprises: Cell-ID, the received signal strength RSS of base station, phase place.
Alternatively, if the WIFISSID that the definite two or more terminals of neighbourship degree computing unit are obtained is identical with MAC Address, be that WIFI signal source is identical, further utilize the adjacent degree of received signal strength RSS data computing terminal, and the identical WIFI signal source that two or more terminals get is more, in the time that vicinity judges, weight is larger.
Alternatively, if the base station Cell-ID that the definite two or more terminals of neighbourship degree computing unit are obtained is consistent, further utilize the adjacent degree of received signal strength RSS data computing terminal.
Alternatively, when described neighbourship degree computing unit is during according to the adjacent degree of described WIFI fingerprint computing terminal, described adjacent judging unit is also based on the adjacent transitivity of terminal, in predetermined progression definite adjacent end of going down.
Alternatively, the described base station fingerprint that neighbourship degree computing unit gathers according to each terminal based on nearest neighbor method or k nearest neighbor method and/or the adjacent degree of described WIFI fingerprint computing terminal.
According to another aspect of the invention, provide a kind of server, comprise above-mentioned adjacent terminals discovery device.
According to another aspect of the invention, provide a kind of terminal, comprise above-mentioned adjacent terminals discovery device.
An advantage of the present invention is, for existing because obtaining terminal particular location or not configure the problem that cannot carry out adjacent terminals discovery that the short distance wireless communication technology module causes because of terminal, propose to realize the discovery of adjacent terminals by base station fingerprint and the WIFI fingerprint of terminal collection, thereby can find easily adjacent terminals.
By the detailed description to exemplary embodiment of the present invention referring to accompanying drawing, it is clear that further feature of the present invention and advantage thereof will become.
Accompanying drawing explanation
The accompanying drawing that forms a part for specification has been described embodiments of the invention, and together with the description for explaining principle of the present invention.
With reference to accompanying drawing, according to detailed description below, can more be expressly understood the present invention, wherein:
Fig. 1 illustrates according to the flow chart of adjacent terminals discover method of the present invention embodiment.
Fig. 2 illustrates according to the flow chart of another embodiment of adjacent terminals discover method of the present invention.
Fig. 3 illustrates according to the flow chart of another embodiment of adjacent terminals discover method of the present invention.
Fig. 4 illustrates the schematic diagram of finding an embodiment of system according to the adjacent terminals based on fingerprint of the present invention.
Fig. 5 illustrates according to the schematic diagram of setting up fingerprint base in an embodiment of the adjacent terminals discover method based on fingerprint of the present invention.
Fig. 6 illustrates the schematic diagram of finding calculating according to being close in an embodiment of the adjacent terminals discover method based on fingerprint of the present invention.
Fig. 7 illustrates the structure chart of finding an embodiment of device according to adjacent terminals of the present invention.
Embodiment
Describe various exemplary embodiment of the present invention in detail now with reference to accompanying drawing.It should be noted that: unless illustrate in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit the scope of the invention.
, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship meanwhile.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in suitable situation, described technology, method and apparatus should be regarded as authorizing a part for specification.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, therefore, once be defined in an a certain Xiang Yi accompanying drawing, in accompanying drawing subsequently, do not need it to be further discussed.
Fig. 1 illustrates according to the flow chart of adjacent terminals discover method of the present invention embodiment.
As shown in Figure 1, step 102, base station fingerprint and/or WIFI fingerprint that receiving terminal gathers.WIFI fingerprint for example comprises SSID, MAC Address, received signal strength (RSS) of WIFI access point (AP) etc., and base station fingerprint for example comprises Cell-ID, signal strength signal intensity (RSS), phase place of base station etc.For example, in cdma network, Cell-ID comprises SID(System ID, system banner), NID(Network ID, network identity), BID(Base Station Identification).
Whether step 106 is adjacent according to the adjacent degree of terminal and default threshold decision terminal.Threshold value can be determined according to weight and the empirical value of base station/WIFI location; Consider the effective range of WIFI, the weighted value of WIFI can be decided to be to threshold value.If the weighted value of WIFI is 50, can establish threshold value is 50, and like this, the consecutive value of calculating (adjacent degree) is more than or equal to 50 terminal all can think adjacent.The threshold value that different application arranges can be different.The application less to area requirement, it is larger that threshold value can arrange; The application larger to area requirement, it is smaller that threshold value can arrange.
The method that provides the adjacent terminals based on fingerprint to find in above-described embodiment, the base station fingerprint obtaining by terminal and/or WIFI fingerprint, in the case of the absolute position (being concrete latitude and longitude information) that does not need to know terminal, pass through nearest neighbor algorithm, can judge that whether two or more terminals are adjacent, terminal does not need to configure the short distance wireless communication technology, solve in terminal and cannot obtain particular location (longitude and latitude) or terminal hardware configuration not enough (not configuring the short distance wireless communication technology module) and the problem that cannot carry out adjacent terminals discovery that causes, can find easily adjacent terminals.
The neighbour that can realize three kinds of modes by above base station fingerprint and/or WIFI fingerprint calculates:
(1) adjacent terminals based on base station fingerprint is found;
(2) adjacent terminals based on WIFI fingerprint is found;
(3) the mixing adjacent terminals based on base station fingerprint and WIFI fingerprint is found.
Below with reference to the accompanying drawings various implementations are introduced respectively and are illustrated.In the following embodiments, base station fingerprint and/or WIFI fingerprint that each terminal is gathered, be sent to adjacent terminals and find module, and adjacent terminals finds that module, according to nearest neighbor algorithm, judges that whether terminal is adjacent.
Fig. 2 illustrates according to the flow chart of another embodiment of adjacent terminals discover method of the present invention.In this embodiment, utilize WIFI fingerprint to carry out adjacent terminals judgement.
As shown in Figure 2, step 202, adjacent terminals is found the WIFI fingerprint that module receiving terminal gathers, and comprises SSID, MAC Address, the received signal strength (RSS) of WIFI access point.
Does step 204, first judge the signal source whether identical (WIFI SSID is identical with MAC Address) that terminal is obtained? if when the WIFI signal source that two or more terminals are obtained is identical, continue step 206, otherwise, judge terminal non-conterminous (step 210).
Whether step 208 is adjacent according to the adjacent degree of terminal and default threshold decision terminal.
In above-described embodiment, judge that by WIFI fingerprint whether terminal is adjacent, low for equipment requirements, it is convenient to realize, and compares with architecture, judges that precision is high.
Fig. 3 illustrates according to the flow chart of another embodiment of adjacent terminals discover method of the present invention.In this embodiment, utilize base station fingerprint to carry out adjacent terminals judgement.
As shown in Figure 3, step 302, the base station fingerprint that receiving terminal gathers, comprises the Cell-ID, received signal strength (RSS), phase place of base station etc.
Does step 304, first judge that whether the cell ID (Cell-ID) that terminal obtains identical? if when the cell ID that two or more terminals are obtained is identical, continue step 306, otherwise, judge terminal non-conterminous (step 310).
Step 306, further utilizes the adjacent degree of data computing terminal such as received signal strength RSS based on adjacency algorithm.Adjacency algorithm is for example nearest neighbor method, k nearest neighbor method etc., and adjacency algorithm is as existing algorithm, and those skilled in the art can realize corresponding calculating according to the parameter of fingerprint and instruction of the present invention.
Whether step 308 is adjacent according to the adjacent degree of terminal and default threshold decision terminal.
In above-described embodiment, judge that by base station fingerprint whether terminal is adjacent, base station range is wide, low for equipment requirements, and it is convenient to realize, and range of application is large.
In one embodiment, utilize base station fingerprint and WIFI fingerprint to carry out adjacent terminals judgement.The coverage of base station is much larger than the coverage of WIFI, so generally, use WIFI finger print data computing terminal adjacent, base station finger print data is as supplementary means, in WIFI signal source undesirable or other in particular cases use, for example not only need to judge the quantity of the identical WIFI signal source that terminal obtains, need to judge the quantity of the same base that terminal obtains simultaneously.
Adjacent terminals finds to have transitivity.
Based on base station fingerprint and/or WIFI fingerprint computing terminal is adjacent has certain transitivity.For example, terminal A is adjacent with terminal B, and terminal B is adjacent with terminal C, is meeting under certain required precision, can judge that terminal A and terminal C are also adjacent.But it is limited to transmit progression, and according to different contiguous account forms and difference.As little in WIFI coverage, can realize one-level transmission, terminal A is adjacent with terminal B, and terminal B is adjacent with terminal C, and terminal C and terminal D are adjacent, under one-level is transmitted, can judge that terminal A and terminal C are also adjacent, but can not judge that terminal A is adjacent with terminal D.The coverage of base station is large, generally can not be close to transmission.
The device of finding for adjacent terminals can be deployed in server side, also can be deployed in end side.In the time that adjacent terminals finds that module is deployed in server side, accept base station fingerprint and WIFI fingerprint that each terminal gathers, and be close to and find to calculate, result of calculation is sent to terminal.In the time that adjacent terminals finds that module is deployed in end side, the adjacent terminals of each terminal finds that module all accepts base station fingerprint and WIFI fingerprint that self and other terminal gather, and be close to and find to calculate, result of calculation, also can be for other terminal for self.
Fig. 4 illustrates the schematic diagram of finding an embodiment of system according to the adjacent terminals based on fingerprint of the present invention.As shown in Figure 4, terminal 1 and terminal 2 gather base station fingerprint and/or WIFI fingerprint, and the information of collection is sent to adjacent terminals discovery server 41, are carried out the judgement of adjacent end by adjacent terminals discovery server 41 according to finger print information.
In one embodiment, the adjacent terminals discover method based on fingerprint, comprises and sets up fingerprint base (being illustrated in fig. 5 shown below) and contiguous calculating (as shown in Figure 6) two steps of finding.
Fig. 5 illustrates according to the schematic diagram of setting up fingerprint base in an embodiment of the adjacent terminals discover method based on fingerprint of the present invention.As shown in Figure 5, set up fingerprint base, concrete steps comprise:
A) terminal 51 is by certain frequency collection base station 53 fingerprints and WIFI access point 54 fingerprints;
B) the base station fingerprint of collection and WIFI fingerprint are sent to adjacent terminals discovery module by terminal 51;
C) adjacent terminals finds that module stores respectively base station fingerprint and WIFI fingerprint, forms fingerprint base 52.
Fig. 6 illustrates the schematic diagram of finding calculating according to being close in an embodiment of the adjacent terminals discover method based on fingerprint of the present invention.As shown in Figure 6, contiguous discovery calculated, and concrete steps comprise:
A) a certain application of terminal is initiated adjacent terminals to adjacent terminals discovery module 63 and is found request;
B) adjacent terminals is found the fingerprint base 52 that module 63 is set up according to the first step, is close to discovery;
C) adjacent terminals finds that module 63 returns to the contiguous result of finding the application of request.
In above-described embodiment, the base station fingerprint collecting and WIFI fingerprint are delivered to adjacent terminals discovery module formation fingerprint base by terminal.In the time having contiguous discovery request, adjacent terminals discovery module, returns results according to the fingerprint base of setting up after contiguous calculating.This method does not need to obtain the concrete longitude and latitude of terminal on the one hand, and terminal does not need to configure the short distance wireless communication technology module on the other hand.
Fig. 7 illustrates the structure chart of finding an embodiment of device according to adjacent terminals of the present invention.As shown in Figure 7, this device comprises: fingerprint receiving element 71, the base station fingerprint and/or the WIFI fingerprint that gather for receiving terminal; Neighbourship degree computing unit 72, for according to terminal gather base station fingerprint and/or the adjacent degree of WIFI fingerprint computing terminal; For example, the base station fingerprint that neighbourship degree computing unit 72 gathers according to each terminal based on nearest neighbor method or k nearest neighbor method and/or the adjacent degree of WIFI fingerprint computing terminal; Whether adjacent judging unit 73, for adjacent according to the adjacent degree of terminal and default threshold decision terminal.WIFI fingerprint for example comprises the information such as the SSID, MAC Address, received signal strength RSS of WIFI access point AP; Base station fingerprint for example comprises the information such as Cell-ID, received signal strength RSS, phase place of base station.
In one embodiment, if the WIFI SSID that the definite two or more terminals of neighbourship degree computing unit are obtained is identical with MAC Address, be that WIFI signal source is identical, further utilize the adjacent degree of received signal strength RSS data computing terminal, and the identical WIFI signal source that two or more terminals get is more, in the time that vicinity judges, weight is larger.In another embodiment, if the base station Cell-ID that the definite two or more terminals of neighbourship degree computing unit are obtained is consistent, further utilize the adjacent degree of received signal strength RSS data computing terminal.
In one embodiment, when neighbourship degree computing unit is during according to the adjacent degree of WIFI fingerprint computing terminal, adjacent judging unit is also based on the adjacent transitivity of terminal, in predetermined progression definite adjacent end of going down.For example, in the situation that one-level is transmitted progression, if A-B is adjacent, B-C is adjacent, judges that A-C is adjacent.
Adjacent terminals discover method, device, terminal and server based on fingerprint disclosed by the invention, for existing because obtaining terminal particular location or not configure the problem that cannot carry out adjacent terminals discovery that the short distance wireless communication technology module causes because of terminal, propose to realize the discovery of adjacent terminals by base station fingerprint and the WIFI fingerprint of terminal collection, thereby can find easily adjacent terminals.
Existing base station or WIFI location main purpose are the absolute positions (longitude and latitude) that obtains terminal, are indifferent to the relative position of terminal; Herein in above-described embodiment take the relative position that judges terminal as target (foothold), do not require the absolute position (longitude and latitude) that obtains terminal; The scheme of finding based on fingerprint adjacent terminals in the embodiment of the present invention, utilize the feature of the finger print data of base station or WIFI, if the difference of the received signal strength (fingerprint) of the same base station (or WIFI) that two terminals are obtained, in a certain threshold value, just can be thought adjacent.This scheme does not need to know the absolute position (longitude and latitude) of terminal; Terminal does not need to configure the short distance wireless communication technology.
So far, described in detail according to adjacent terminals discover method of the present invention, device, terminal and server.For fear of covering design of the present invention, details more known in the field are not described.Those skilled in the art, according to description above, can understand how to implement technical scheme disclosed herein completely.
May realize in many ways method and system of the present invention.For example, can realize method and system of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of described method is only in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specified.In addition, in certain embodiments, can be also the program being recorded in recording medium by the invention process, these programs comprise the machine readable instructions for realizing the method according to this invention.Thereby the present invention also covers the recording medium of storing the program for carrying out the method according to this invention.
Although specific embodiments more of the present invention are had been described in detail by example, it should be appreciated by those skilled in the art, above example is only in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (14)
1. an adjacent terminals discover method, is characterized in that, comprising:
Base station fingerprint and/or Wireless Fidelity WIFI fingerprint that receiving terminal gathers;
The described base station fingerprint gathering according to terminal and/or the adjacent degree of described WIFI fingerprint computing terminal;
Whether adjacent according to the adjacent degree of terminal and default threshold decision terminal.
2. method according to claim 1, is characterized in that, described WIFI fingerprint comprises: the service set SSID of WIFI access point, medium access control MAC Address, received signal strength RSS;
And/or
Described base station fingerprint comprises: cell ID Cell-ID, the RSS of base station, phase place.
3. method according to claim 2, is characterized in that, the described adjacent degree according to the described WIFI fingerprint computing terminal of terminal collection comprises:
If the WIFI SSID that two or more terminals are obtained is identical with MAC Address, be that WIFI signal source is identical, utilize the adjacent degree of RSS data computing terminal, and the identical WIFI signal source that two or more terminal gets is more, in the time that vicinity judges, weight is larger.
4. method according to claim 2, is characterized in that, the described adjacent degree according to the described base station fingerprint computing terminal of terminal collection comprises:
If mark Cell-ID is consistent in the base station cell that two or more terminals are obtained, utilize the adjacent degree of RSS data computing terminal.
5. method according to claim 1, is characterized in that, the described adjacent degree according to the described base station fingerprint of terminal collection and described WIFI fingerprint computing terminal comprises:
Use the adjacent degree of described WIFI fingerprint computing terminal, the supplementary means that described base station fingerprint calculates as described WIFI fingerprint; In the undesirable situation of WIFI signal source, use the adjacent degree of base station fingerprint computing terminal.
6. according to the method described in any one in claim 1 to 5, it is characterized in that, the described adjacent degree according to the described base station fingerprint of terminal collection and/or described WIFI fingerprint computing terminal comprises:
The described base station fingerprint gathering according to each terminal based on nearest neighbor method or k nearest neighbor method and/or the adjacent degree of described WIFI fingerprint computing terminal.
7. adjacent terminals is found a device, it is characterized in that, comprising:
Fingerprint receiving element, the base station fingerprint and/or the Wireless Fidelity WIFI fingerprint that gather for receiving terminal;
Neighbourship degree computing unit, for according to terminal gather described base station fingerprint and/or the adjacent degree of described WIFI fingerprint computing terminal;
Whether adjacent judging unit, for adjacent according to the adjacent degree of terminal and default threshold decision terminal.
8. device according to claim 7, is characterized in that, described WIFI fingerprint comprises: the service set SSID of WIFI access point, medium access control MAC Address, received signal strength RSS;
And/or
Described base station fingerprint comprises: cell ID Cell-ID, the RSS of base station, phase place.
9. device according to claim 8, it is characterized in that, if the WIFI SSID that the definite two or more terminals of described neighbourship degree computing unit are obtained is identical with MAC Address, be that WIFI signal source is identical, further utilize the adjacent degree of RSS data computing terminal, and the identical WIFI signal source that two or more terminals get is more, in the time that vicinity judges, weight is larger.
10. device according to claim 8, is characterized in that, if the base station Cell-ID that the definite two or more terminals of described neighbourship degree computing unit are obtained is consistent, further utilizes the adjacent degree of RSS data computing terminal.
11. devices according to claim 7, it is characterized in that, when described neighbourship degree computing unit is during according to the adjacent degree of described WIFI fingerprint computing terminal, described adjacent judging unit is also based on the adjacent transitivity of terminal, in predetermined progression definite adjacent end of going down.
12. devices according to claim 7, is characterized in that, the described base station fingerprint that described neighbourship degree computing unit gathers according to each terminal based on nearest neighbor method or k nearest neighbor method and/or the adjacent degree of described WIFI fingerprint computing terminal.
13. 1 kinds of servers, is characterized in that, comprise that the adjacent terminals as described in any one in claim 7 to 12 is found device.
14. 1 kinds of terminals, is characterized in that, comprise that the adjacent terminals as described in any one in claim 7 to 12 is found device.
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