CN103024659B - A kind of location method and system - Google Patents

A kind of location method and system Download PDF

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Publication number
CN103024659B
CN103024659B CN201110284064.5A CN201110284064A CN103024659B CN 103024659 B CN103024659 B CN 103024659B CN 201110284064 A CN201110284064 A CN 201110284064A CN 103024659 B CN103024659 B CN 103024659B
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China
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anchor point
wireless device
signal strength
according
testing result
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CN201110284064.5A
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CN103024659A (en
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胡乐乐
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嘉兴高恒信息科技有限公司
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Abstract

A kind of location method of present invention offer, system and its involved mobile terminal apparatus and locating platform.More position data collecting terminal TE and user terminal UE constitute a movable positioning system by accessing wireless network connection locating platform.The location data of position data collecting terminal TE acquisition anchor points is simultaneously reported to locating platform, and locating platform stores in the database after being normalized;Measurement result is simultaneously reported locating platform by user terminal UE detection surrounding wireless signals;Locating platform compare above-mentioned user terminal UE measurement result and database in the location data that stores, determine with positioning result of the matched anchor point of measurement result as user terminal UE, and carry out LBS service accordingly in turn.Implement the present invention easily can carry out LBS service in indoor public places such as market, coffee shop, bar, office building, airports.

Description

A kind of location method and system

Technical field

The present invention relates to location methods and system, more particularly to comprehensive utilization wireless measurement technology and mobile communication skill Art provides the method and system and relevant apparatus of positioning service.

Background technology

In mobile network's value-added service industry, the LBS (Location Based Service) based on customer position information Service is a kind of important application, and growth momentum is swift and violent in recent years, emerges various omnifarious LBS services in the market.In addition to Outside traditional navigation service, in recent years on the market it is more active be following several types application:

The service of registering based on location information, the service can be combined geographical location information with social network sites, and user can be same When register to the website of multiple geo-location services;

Search service based on location information searches for the interested periphery merchant of user according to customer position information Information;

Business information Push Service based on location information, the LBS service released such as Getyowza companies of the U.S. (http://getyowza.com/), the client that user is provided by installing Getyowza, Getyowza can be according to user Geographical location, will be to the coupon information near user's push;

Reality-virtualizing game based on location information.

The basis of all these LBS services is to carry out accurate positioning, current positioning hand to user terminal first Section is sometimes positioned also in relation with mobile network, is also had been reported that using WAP site mainly by the GPS built in smart mobile phone Auxiliary positioning.It is as follows to the strengths and weaknesses analysis of these types of localization method:

GPS positioning, as long as GPS functions built in user mobile phone, accuracy is high under outdoor good wireless environment and user without Need to be that positioning itself pays any expense;The previous main problem of mesh, which is dense city high building environment, can not usually position, indoor It can not position;

Mobile network positions, and indoor and outdoor environment all can be used, the disadvantage is that positioning accuracy is poor, tend not to meet LBS The requirement of service, and need supplementary payments positioning service expense;

UCWEB mobile phone browsers position, and indoor and outdoor environment all can be used, and similar scheme is positioned using mobile network, The problem of equally facing low precision.

In addition, also occurring some locating schemes realized using short distance wireless technical and triangulation technique in recent years RTLS, such as WiFi positioning systems.Their working mechanisms are all by disposing more locating base stations, and then terminal to be positioned passes through It measures the signal strength for closing on locating base station and position coordinates is calculated by such as triangle polyester fibre algorithm model.These technical sides The main problem of case is to need to know in advance the accurate location coordinate of locating base station in localization region, and indoor rings various at present Although being deployed with a large amount of WiFi access points in border, but its specific coordinate can not be known in advance, therefore said program is applicable in field It closes limited.

In conclusion the existing localization method of existing market is still helpless to the accurate positionin of indoor user, Wu Faman Foot carries out the requirement of LBS service, and LBS service is said, proper in indoor spaces such as much markets, office building, coffee shops Just there are a large amount of LBS potential users.Therefore, market needs a kind of positioning system, can accurately realize above-mentioned indoor environment Positioning, to carry out various good LBS services accordingly.

Invention content

The present invention proposes a kind of location method, and this approach includes the following steps:

1) position data collecting terminal TE acquires the location data of anchor point and is reported to locating platform, and locating platform carries out It is stored in the database after normalized;

2) user terminal UE detects surrounding wireless signal and measurement result is reported locating platform;

3) locating platform compares the location data of the measurement result and step 1) of step 2), and determination is matched with measurement result Positioning result of the anchor point as user terminal UE.

Above-mentioned steps 1) in the location data of position data collecting terminal TE acquisition anchor point issued according to locating platform Position data collecting instruction carries out, which includes the information of target area and anchor point information therein, and positioning number According to collection rule.The location data of the anchor point refers to position data collecting terminal TE on all peripheries that anchor point detects The identification information of wireless device, wireless signal strength information, signal-tonoise information.It is wireless around the user terminal UE detections The measurement result of signal includes the identification information, wireless signal strength information, letter of all periphery wireless devices detected It makes an uproar and compares information.The periphery wireless device that the position data collecting terminal TE and user terminal UE are detected refer to it is following any one Or plurality of devices:RFID tag, Zigbee nodes, bluetooth equipment, mobile network's microcell base station, mobile network's Home eNodeB FEMTO, mobile network's indoor distributed system, wireless local network connecting point AP.The identity of the wireless device is the equipment MAC Address or mobile base station CELL ID.

Described 1) in step locating platform to the location datas of the position data collecting terminal TE each anchor points reported into Row normalized includes:The periphery radio equipment data that position data collecting terminal TE is detected in each anchor point is according to it Signal strength arranges from high to low;By the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, as it New signal strength values.

Described the 3) locating platform determines by comparing and is based on following principle with the matched anchor point of measurement result in step: The location data and measurement result of the anchor point are most like, i.e., the wireless device quantity with common identity mark that the two includes At most, and the signal strength Relative distribution difference of these wireless devices is minimum.Mentioned above principle is realized by following algorithm:It receives After the measurement result that user terminal UE is reported, the data of plurality of wireless device are normalized, i.e., are believed according to it Number intensity is arranged from high to low, and by its signal strength subtraction signal most intensity values, then negates logarithm, new as it Signal strength values;Searching database is searched and the matched candidate anchor point of measurement result:First believe according to wireless device identification in response Breath retrieval, finds that intersection is positioned more than or equal to the anchor point of n as candidate in wireless device identification in response with measurement result Point, i.e., at least n wireless device identification in response appears in measurement result in the anchor point location data preserved in database In, the value of above-mentioned n depends on the quantity N for including wireless device in measurement result, and initial value is arranged according to the 20%-50% of N And it is adjusted according to positioning trip effect dynamic;Further preferably go out to match anchor point:Construct a sequence X for including N number of element ={ x1, x2..., xN, wherein x1> x2> ... > xNAndFor each candidate anchor point respectively under Formula calculates its matching degree M:

Wherein m is the intersection quantity of candidate's anchor point location data and measurement result in wireless device identification in response, I.e. the two has m identical wireless devices, n≤m≤N;M intersection of measurement result and candidate anchor point location data is wireless The data of equipment are arranged according to signal strength normalized value descending, the signal strength normalized value of the two be denoted as respectively R1i and R2i, then the Δ R in (1) formula abovei=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen to tie as with measurement The matched anchor point of fruit.

The present invention also proposes a kind of movable positioning system, including:

1) an at least position data collecting terminal TE, communication link is established by accessing wireless network with locating platform It connects, be responsible for the location data of acquisition anchor point and be reported to locating platform;

2) an at least user terminal UE is established with locating platform by accessing wireless network and is communicated to connect, passed through Measurement result is simultaneously reported locating platform by detection surrounding wireless signal, to obtain the positioning result of locating platform and be based on position Service;

3) locating platform is responsible for that the position data collecting terminal TE location datas reported are normalized simultaneously Storage is determined and measurement result by comparing the location data of measurement result and database purchase that user terminal UE is reported Positioning result of the anchor point matched as user terminal UE, and accordingly positioning service is provided to user terminal UE.

The wireless network refers to that can provide any wireless network of Internet access services, including mobile radio communication Network, WLAN and their evolvement network.The location data of the position data collecting terminal TE acquisitions anchor point is pressed It instructs and carries out according to the position data collecting that locating platform issues, which includes the information of target area and anchor point therein Information and position data collecting rule.The location data of the anchor point refers to position data collecting terminal TE in anchor point The identification information of all periphery wireless devices detected, wireless signal strength information, signal-tonoise information.The user is whole The measurement result of end UE detection surrounding wireless signals includes the identification information, wireless of all periphery wireless devices detected Signal strength information, signal-tonoise information.The periphery that the position data collecting terminal TE and user terminal UE are detected wirelessly is set It is standby to refer to any one or more following equipment:RFID tag, bluetooth equipment, mobile network's microcell base station, moves Zigbee nodes Dynamic network family base station FEMTO, mobile network's indoor distributed system, wireless local network connecting point AP.The body of the wireless device Part mark is the MAC Address of the equipment or the CELL ID of mobile base station.

Place is normalized to the location data of the position data collecting terminal TE each anchor points reported in the locating platform Reason includes:The periphery radio equipment data that position data collecting terminal TE is detected in each anchor point according to its signal strength by High to Low arrangement;By the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, the signal new as its is strong Angle value.

The locating platform is determined with the matched anchor point of measurement result by comparing based on following principle:The anchor point Location data and measurement result are most like, i.e., the wireless device quantity with common identity mark that the two includes is most, and this The signal strength Relative distribution difference of a little wireless devices is minimum.Mentioned above principle is realized by following algorithm:Receive user terminal After the measurement result that UE is reported, the data of plurality of wireless device are normalized, i.e., according to its signal strength from It is high to Low to be arranged, and by its signal strength subtraction signal most intensity values, logarithm is then negated, the signal strength new as its Value;Searching database is searched and the matched candidate anchor point of measurement result:First according to wireless device identification in response information retrieval, look for To anchor point of the intersection more than or equal to n is used as candidate anchor point, i.e. data in wireless device identification in response with measurement result At least n wireless device identification in response occurs in the measurement results in the anchor point location data preserved in library, above-mentioned n's Value depends on the quantity N for including wireless device in measurement result, initial value is arranged according to the 20%-50% of N and according to positioning Operational effect dynamic adjusts;Further preferably go out to match anchor point:Construct a sequence X={ x for including N number of element1, x2..., xN, wherein x1> x2> ... > xNAndIt is calculated according to the following formula respectively for each candidate anchor point Matching degree M:

Wherein m is the intersection quantity of candidate's anchor point location data and measurement result in wireless device identification in response, I.e. the two has m identical wireless devices, n≤m≤N;M intersection of measurement result and candidate anchor point location data is wireless The data of equipment are arranged according to signal strength normalized value descending, the signal strength normalized value of the two be denoted as respectively R1i and R2i, then the Δ R in (1) formula abovei=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen to tie as with measurement The matched anchor point of fruit.

The present invention also proposes a kind of mobile position platform, by interface adaptation, data processing, database and administrative unit structure At Location based service can be provided to the service provider LBS of user terminal UE and third party based on user location, wherein

Interface adaptation unit is responsible for handling user terminal UE, position data collecting terminal TE and third party based on user position Interaction message between the service provider LBS set and management platform;

Administrative unit is responsible for all user terminal UE, position data collecting terminal TE and third party's bases for accessing this platform The management such as authentication, permission, active state tracking are carried out in the service provider LBS of user location, while platform is carried out Every LBS service carry out content and service logic management, and the user for being carried out LBS service based on this platform is carried out long-range Authentication and rights management;

Database Unit records management and the business datum of platform, wherein management data include user terminal UE, positioning number Believe according to the attribute information of the service provider LBS of acquisition terminal TE, platform user and third party based on user location, certification Breath, usage record etc., business datum include positioning service target area location data and with the associated LBS service number in position According to;

Data processing unit is responsible for depositing after the location data that position data collecting terminal TE is reported is normalized Storage is in the database;By comparing the location data of measurement result and database purchase that user terminal UE is reported, determines and survey Measure positioning result of the matched anchor point of result as user terminal UE;And the business logic processing of LBS service is carried out accordingly, to User terminal UE provides positioning service.

User terminal UE, position data collecting terminal TE and the third party of the interface adaptation unit processing are based on user Interaction message between the service provider LBS and management platform of position includes user terminal UE uploads comprising positioning measurement knot The position data collecting report for including anchor point location data that the locating request message of fruit, position data collecting terminal TE are reported It accuses, locating platform is handed down to the position data collecting instruction of position data collecting terminal TE, locating platform is handed down to user terminal The Location Request and locating platform that the service provider LBS of location service information, third party based on user location of UE is sent are returned The positioning result returned.

The position data collecting instruction that the locating platform is handed down to position data collecting terminal TE includes target area Information and anchor point information therein and position data collecting rule, position data collecting terminal TE are advised according to acquisition accordingly Position data collecting then is carried out to each anchor point of target area and reports locating platform.

The location data of the anchor point refer to position data collecting terminal TE all peripheries that anchor point detects without The identification information of line equipment, wireless signal strength information, signal-tonoise information.The user terminal UE detects surrounding wireless communication Number measurement result include all periphery wireless devices detected identification information, wireless signal strength information, noise Compare information.The periphery wireless device that the position data collecting terminal TE and user terminal UE are detected refer to it is following any one or Plurality of devices:RFID tag, Zigbee nodes, bluetooth equipment, mobile network's microcell base station, mobile network's Home eNodeB FEMTO, mobile network's indoor distributed system, wireless local network connecting point AP.The identity of the wireless device is the equipment MAC Address or mobile base station CELLID.

Place is normalized to the location data of the position data collecting terminal TE each anchor points reported in the locating platform Reason includes:The periphery radio equipment data that position data collecting terminal TE is detected in each anchor point according to its signal strength by High to Low arrangement;By the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, the signal new as its is strong Angle value.

The locating platform is determined with the matched anchor point of measurement result by comparing based on following principle:The anchor point Location data and measurement result are most like, i.e., the wireless device quantity with common identity mark that the two includes is most, and this The signal strength Relative distribution difference of a little wireless devices is minimum.Mentioned above principle is realized by following algorithm:Receive user terminal After the measurement result that UE is reported, the data of plurality of wireless device are normalized, i.e., according to its signal strength from It is high to Low to be arranged, and by its signal strength subtraction signal most intensity values, logarithm is then negated, the signal strength new as its Value;Searching database is searched and the matched candidate anchor point of measurement result:First according to wireless device identification in response information retrieval, look for To anchor point of the intersection more than or equal to n is used as candidate anchor point, i.e. data in wireless device identification in response with measurement result At least n wireless device identification in response occurs in the measurement results in the anchor point location data preserved in library, above-mentioned n's Value depends on the quantity N for including wireless device in measurement result, initial value is arranged according to the 20%-50% of N and according to positioning Operational effect dynamic adjusts;Further preferably go out to match anchor point:Construct a sequence X={ x for including N number of element1, x2..., xN, wherein x1> x2> ... > xNAndIt is calculated according to the following formula respectively for each candidate anchor point Matching degree M:

Wherein m is the intersection quantity of candidate's anchor point location data and measurement result in wireless device identification in response, I.e. the two has m identical wireless devices, n≤m≤N;M intersection of measurement result and candidate anchor point location data is wireless The data of equipment are arranged according to signal strength normalized value descending, the signal strength normalized value of the two be denoted as respectively R1i and R2i, then the Δ R in (1) formula abovei=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen to tie as with measurement The matched anchor point of fruit.

The present invention also proposes a kind of movable positioning terminal device, which includes:

One wireless communication unit is responsible for accessing wireless network under the control of main control unit and then is located at interconnection with one The server of net establishes communication connection;

One wireless measurement unit is responsible under the control of main control unit all wireless communications that can be detected around detection Number;

One display unit is provided a user using displaying by display screen and uses interface;

One input-output unit is responsible for providing a user operation in the case where main control unit is controlled by touch screen or keyboard and making With interface, audio-frequency information is exported by microphone input and loudspeaker, earphone jack, passes through bluetooth, USB interface input and output number It is believed that breath;

One main control unit, is responsible for unit by radio communication and a server for being located at internet establishes communication link It connects, receives the management instruction and information on services that the server issues, report the measurement result of wireless measurement unit.

The movable positioning terminal device includes the running fix application of a smart mobile phone and an operation in the above. The wireless network refers to that can provide any wireless network of Internet access services, including mobile communications network, wireless office Domain net and their evolvement network.The measurement of all wireless signals that can be detected around the wireless measurement unit detection As a result include the identification information, wireless signal strength information, signal-tonoise information of all periphery wireless devices detected.Institute The identity for stating wireless device is the MAC Address of the equipment or the CELLID of mobile base station.The periphery wireless device refers to Any one or more equipment below:RFID tag, Zigbee nodes, bluetooth equipment, mobile network's microcell base station, mobile network Network Home eNodeB FEMTO, mobile network's indoor distributed system, wireless local network connecting point AP.

After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more Add clear.

Description of the drawings

Fig. 1 is the system architecture of one embodiment of the invention;

Fig. 2 is the functional block diagram of user terminal UE one embodiment in present system;

Fig. 3 is the logic diagram of user terminal UE one embodiment in present system;

Fig. 4 is the functional block diagram of locating platform one embodiment in present system;

Fig. 5 is one embodiment of the invention positions calculations flow;

Fig. 6 is the division schematic diagram of position data collecting point in one embodiment of the invention;

Fig. 7 is a positioning service flow based on the present invention.

Specific implementation mode

The specific implementation mode that the invention will now be described in detail with reference to the accompanying drawings.

Fig. 1 is the system architecture of present system one embodiment, wherein position data collecting terminal TE and user terminal UE accesses internet by mobile communications network, and then establishes and communicate to connect with locating platform;Position data collecting terminal TE is pre- It first acquires the location data of LBS service area and is uploaded to locating platform;User terminal UE report oneself to wireless signal around The especially measurement result of wireless lan signal;Locating platform receive after the measurement result that UE is reported by database retrieval, The present positions UE are determined after comparison calculation, and carry out the service (LBS) based on location information accordingly in turn.Certainly, location data Acquisition terminal TE and user terminal UE can not also by mobile network but by wireless local network accessing Internet and Locating platform establishes communication connection.

The functional block diagram of user terminal UE is as shown in Fig. 2, wherein wireless communication unit is responsible under the control of main control unit Access to mobile network simultaneously accesses internet by the data service of mobile network, or passes through wireless local network accessing Internet; Wireless measurement unit is responsible under the control of main control unit all wireless local network connecting point AP that can be detected around detection Wireless signal, measure and record each AP the address system service identifier SSID, MAC (Media Access Control), The information such as channel number, cipher mode, signal strength RSSI, signal-to-noise ratio S/N;Display unit is provided a user by display screen and is answered With displaying and use interface;Input-output unit then provides a user under main control unit control and operates with interface, such as touches Screen or keyboard etc., and pass through the input and output such as microphone, loudspeaker, earphone jack, bluetooth, USB interface audio, data information; Unit establishes communication connection to main control unit with locating platform by radio communication, reports WLAN measurement result, it is fixed to receive The location services information that bit platform issues.In specific implementation, the function of user terminal UE can be by opening on a smart mobile phone A running fix application is sent out to realize, Fig. 3 provides its logic diagram.Wherein hardware platform is using multimedia terminal SOC as core Basic operations ability, communication capacity and external interface are provided;Linux 2.6 is hardware abstraction layer, and is responsible for the management of equipment;System System service layer provides various system libraries, all system services, such as display, web page browsing and storage by system library management;It answers Application programming interface (API) is provided with program development frame;All functions for user are considered as applying, and such as communicate Using, entertainment applications and information processing application etc..

The functional block diagram of position data collecting terminal TE is similar with user terminal UE with implementation, and difference lies in master controls Unit connects locating platform by communication unit, receives the position data collecting instruction that locating platform issues, passes through wireless measurement Unit reports locating platform after completing position data collecting.

Locating platform is made of functional units such as interface adaptation, data processing, database and management, as shown in Figure 4.In object Reason realizes that upper locating platform can be deployed on single server, can also be needed to be deployed in by more services according to operation expanding In device group, wherein different servers undertakes different functions, and its carrying service device can also continue to for key function It extends to realize load balancing and data backup.

Interface adaptation unit is responsible for handling the interaction message between user terminal UE and management platform, including termination and according to The message that reports of interface protocol parsing UE, and information is delivered into data processing unit or administrative unit is further processed, simultaneously It is sent to user terminal UE after service that administrative unit issues or management information are encapsulated according to interface protocol;Interface adaptation unit It is also responsible for the Location Request for user terminal UE that processing third party LBS is sent, terminate its request message, and this request is turned It hands over administrative unit to be further processed, while Location Request is sent to after the result that administrative unit returns is encapsulated according to interface protocol Side.

Administrative unit be responsible for all user terminal UE and third party LBS for accessing this platform carry out authentication, permission, The management such as active state tracking, while content and service logic management are carried out to every LBS service that platform is carried out, and to base The user for carrying out LBS service in this platform carries out long-distance identity-certifying and rights management.

Database Unit records management and the business datum of platform.Wherein management data include user terminal UE, platform use The attribute information of family and third party LBS, authentication information, usage record etc..Business datum includes positioning service target area Location data and with the associated LBS service data in position, the location data of positioning service target area includes locating point position SSID, MAC Address, channel number, cipher mode, the signal for surrounding's wireless local network connecting point that coding and the position detection arrive The data of intensity RSSI, signal-to-noise ratio S/N, each wireless local network connecting point are arranged and are passed through from high to low according to its signal strength RSSI Normalized is crossed, i.e., then each strongest RSSI value of access point RSSI value subtraction signal negates logarithm, remember as the access point The RSSI numerical value of record;Include shopping guide's information of businessman near the position, sales promotion information, quotient with the associated LBS service data in position Product advertisement, digital coupons etc..

Data processing unit is responsible for handling the positions calculations of user terminal UE, the pretreatment of database-located data and LBS The business logic processing of service.Positions calculations flow is as shown in Figure 5:

First by the data of multiple wireless local network connecting points in measurement result according to its signal strength RSSI from high to low It is arranged;

Then the signal strength RSSI of each wireless local network connecting point is normalized, i.e. each point RSSI value subtracts The strongest RSSI value of signal, then negates logarithm, the RSSI numerical value new as the point;

Searching database is searched and the matched anchor point of measurement result, is as follows:First according to access point MAC Address Retrieval, find with measurement result on access point MAC Address intersection more than or equal to the anchor point of n as candidate anchor point, i.e., The MAC Address of at least n access point occurs in the measurement results in the locating point data preserved in database, above-mentioned n's Value depends on the quantity N for including wireless access point in measurement result, and initial value, and root can be arranged according to the 20%-50% of N It is adjusted according to locating platform the actual running results dynamic;Then optimal anchor point is selected from candidate anchor point to tie as with measurement The matched anchor point of fruit constructs a sequence X={ x for including N number of element1, x2..., xN, wherein x1> x2> ... > xNAndIt is then directed to each candidate anchor point and calculates its matching degree according to the following formula respectively:

Wherein m is the intersection quantity of candidate's anchor point and measurement result on access point MAC Address, i.e., the two has m Identical access point, it is clear that n≤m≤N.The m intersection access point data of measurement result and candidate anchor point is returned according to RSSI One change value descending arranges, and the RSSI normalized values of the two are denoted as R1 respectivelyiAnd R2i, then the Δ R in (1) formula abovei=| R1i-R2i |.Finally choose the maximum candidate anchor point of matching degree M as with the matched anchor point of measurement result.

After the completion of the positions calculations of user terminal UE reporting measurement data, data processing unit can be according to fixed in advance The service logic of justice provides LBS service information to user terminal.Such as data processing unit is positioned by inquiry and above-mentioned matching The associated LBS service data of point are determined in conjunction with the LBS service type ordered of the user of data-base recording to user terminal UE The LBS service data of push are simultaneously sent to user terminal UE by interface adaptation unit.

Data processing unit refers to that position data collecting terminal TE is reported to the pretreatment of database location data Location data carries out above-mentioned RSSI numerical value normalized before being stored in database, and by each WLAN in location data Access point being ranked sequentially from high to low according to its signal strength RSSI.

The position data collecting instruction that locating platform is issued to position data collecting terminal TE includes the information of target area With anchor point therein, that is, information such as positioning acquisition point information and position data collecting rule.Such as GPS coordinate, market name The target areas such as title, floor distribution map information, the positioning acquisition point position often marked on floor mapping, when each point acquires Between and collecting sample quantity etc..For each specific target area, locating platform can need to incite somebody to action according to development LBS service It is divided into several position data collecting points, a market as shown in FIG. 6 floor face schematic diagram, inside each retail shop and door The place such as mouth, elevator, uplink and downlink escalator is provided with 36 position data collecting points.Position data collecting terminal TE is right accordingly Each collection point carries out position data collecting, i.e., can be detected according to all around collection rule detection in each collection point The wireless signal of wireless local network connecting point AP measures and records system service identifier SSID, MAC Address, the channel of each AP The information such as number, cipher mode, signal strength RSSI, signal-to-noise ratio S/N, and report positioning flat measurement result by communication unit Platform.

Once locating platform finishes the position data collecting of each anchor point in target area, you can carry out LBS service accordingly. Running fix APP on user terminal UE provides a user various LBS service options in the form of graphical interfaces, such as obtains discount Certificate, acquisition mall shopping information etc., user is by clicking these options triggering user terminal UE progress positioning measurements and reporting As a result, obtaining the LBS service information of locating platform in turn.Fig. 7 gives a market coupons automatic push flow:

1) user initiates a LBS service request, such as obtains the discount volume of surrounding retail shop;

2) user terminal UE carries out positioning measurement;

3) complete after to locating platform send LBS service request, including LBS service classification, user and terminal identity, The information such as positioning measurement result;

4) locating platform carries out positions calculations accordingly, such as success, then continues next step;Otherwise it is returned to user terminal UE Requested LBS service can not be temporarily provided, the instruction of positioning measurement is re-started, UE returns to step 2) after receiving instruction, simultaneously The accumulative positioning frequency of failure terminates this flow, to user if user's consecutive tracking frequency of failure is more than predetermined threshold value Z Terminal return information shows temporarily provide requested LBS service at this time;

5) positions user terminal UE (some matching anchor point) that locating platform is determined according to positions calculations, retrieval service number It according to library, finds and the associated retail shop's coupons information of the anchor point, these information is encapsulated according to pre-defined interface specification;

6) locating platform is by the LBS service information after above-mentioned encapsulation, i.e., the coupons of retail shop push away near user present position User terminal UE is given, the secondary LBS service is completed.

The present invention makes full use of the WLAN wireless signal that becomes increasingly popular at present as basis on location, in particular with WLAN wireless signal penetration capacity is weak, environmental footprint is small indoors, may be deployed in the same interior space Anchor point can be sub-divided into specific building, specific floor even specific quotient by the characteristics of multiple both privately and publicly owned's wireless access point APs Near paving.It can effectively solve the problems, such as that GPS can not be positioned under environment indoors, other network positions means precision are too poor.Implement The present invention easily can carry out LBS service in public places such as market, coffee shop, bar, office building, airports.

The scope of the present invention and design are not departed from, various changes may be made and deformation for above-mentioned positioning service system, very much Variation is obvious for the ordinary skill in the art.For example, the embodiment of the present invention is wireless around to detect Illustrate locating scheme for local area network signal, but the present invention is equally applicable to position by detecting other similar wireless signals Method.Such as localization region deploy based on RFID, Zigbee, bluetooth short distance wireless technical positioning label condition under, These short range, wireless signals around detection;Or by microcellulor, indoor distribution, Home eNodeB FEMTO coverings inside building In the case of, surrounding mobile network signals are detected, the basis for estimation of positions calculations is all can be used as.For microcellulor, indoor distribution System and the case where Home eNodeB FEMTO, the MAC Address conduct of the alternative above-mentioned wireless local network connecting point AP of CELL ID The identification information of the unique mark wireless device.In addition to mobile network and WLAN, position data collecting terminal TE It can also be established and be communicated to connect with locating platform by any wireless network for providing Internet access services with user terminal, Such as the evolvement network (LTE, 4G) etc. of WiMAX network, mobile communications network and WLAN.

Description of the invention provides for example, is not exhaustively or to limit the invention to disclosed Form.Selection and description embodiment are and to make the common of this field to more preferably illustrate the principle of the present invention and practical application Technical staff is it will be appreciated that various embodiments with various modifications of the present invention to design suitable for special-purpose.The present invention's Range is determined by the appended claims.

Claims (21)

1. a kind of location method, which is characterized in that the described method comprises the following steps:
1) position data collecting terminal TE is established with locating platform by wireless network accesses internet and is communicated to connect, and is received The position data collecting instruction that locating platform issues, the position data collecting instruction includes that anchor point information and location data are adopted Collection rule;The anchor point information includes the floor distribution map of target area where anchor point and on every floor mapping The locating point position of mark;Position data collecting terminal TE detects location data and is reported to positioning and puts down in each anchor point accordingly Platform is stored in after being normalized by locating platform in location database;The location data includes all detects The identification information and signal strength information of surrounding wireless device;
2) user terminal UE is established with locating platform by wireless network accesses internet and is communicated to connect;User terminal UE inspections Surrounding wireless signal is surveyed, and it includes wireless around all detect that testing result, which is reported locating platform, the testing result, The identification information and signal strength information of equipment;
3) locating platform compares the location data of the testing result and step 1) of step 2), is determined based on following principle and detects knot Positioning result of the matched anchor point of fruit as user terminal UE:The location data and testing result of the anchor point are most like, i.e., The wireless device quantity with common identity mark that the two includes is most, and the signal strength Relative distribution of these wireless devices Difference is minimum.
2. according to the method described in claim 1, it is characterized in that, the position data collecting terminal TE and user terminal UE institutes The periphery wireless device of detection refers to any one or more following equipment:RFID tag, Zigbee nodes, bluetooth equipment, movement Network microcell base station, mobile network's Home eNodeB FEMTO, wireless local network connecting point AP.
3. according to claim 1-2 any one of them methods, which is characterized in that the wireless network refers to any offer interconnection The wireless network of net access service, including WLAN, mobile communications network, WiMAX network and their evolution net Network.
4. according to claim 1-2 any one of them methods, which is characterized in that anchor point information described in the step 1) into One step includes the position coordinates and interior architecture title of target area where anchor point, and the position data collecting rule includes every The time of a anchor point detection location data and collecting sample quantity.
5. according to claim 1-2 any one of them methods, which is characterized in that the identity of the wireless device is that this sets The CELL ID of standby MAC Address or mobile base station.
6. according to claim 1-2 any one of them methods, which is characterized in that described the 1) in step locating platform to positioning The location data for each anchor point that data collection station TE is reported be normalized including:
A) the periphery radio equipment data for detecting position data collecting terminal TE in each anchor point according to its signal strength by High to Low arrangement;
B) by the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, the signal strength values new as its.
7. according to claim 1-2 any one of them methods, which is characterized in that the locating platform is determined and examined by comparing The following steps of passing in principle that the matched anchor point of result is based on are surveyed to realize:
A after) receiving the testing result that user terminal UE is reported, place is normalized in the data of plurality of wireless device Reason, i.e., arranged according to its signal strength, and from high to low by its signal strength subtraction signal most intensity values, is then negated pair Number, the signal strength values new as its;
B) searching database is searched and the matched candidate anchor point of testing result:First examined according to wireless device identification in response information Rope, find with testing result in wireless device identification in response intersection more than or equal to the anchor point of n as candidate anchor point, i.e., At least n wireless device identification in response appears in testing result in the anchor point location data preserved in database, on The value for stating n depends on the quantity N for including wireless device in testing result, according to the 20%-50% setting initial values and basis of N Positioning trip effect dynamic adjusts;
C) further preferably go out to match anchor point:Construct a sequence X={ x for including N number of element1, x2..., xN, wherein x1 > x2> ... > xNAndIts matching degree M is calculated according to the following formula respectively for each candidate anchor point:
Wherein m is the intersection quantity of candidate's anchor point location data and testing result in wireless device identification in response, i.e., two Person has m identical wireless devices, n≤m≤N;By m intersection wireless device of testing result and candidate anchor point location data Data arranged according to signal strength normalized value descending, the signal strength normalized value of the two is denoted as R1 respectivelyiAnd R2i, then on Δ R in face (1) formulai=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen as matched with testing result Anchor point.
8. a kind of movable positioning system, which is characterized in that the system comprises:
1) an at least position data collecting terminal TE is established with locating platform by accessing wireless network and is communicated to connect, The position data collecting instruction that locating platform issues is received, the position data collecting instruction includes anchor point information and positioning number According to collection rule;The anchor point information includes target area floor distribution map where anchor point and in every floor mapping The locating point position of upper mark;Position data collecting terminal TE detects location data in each anchor point accordingly and is reported to positioning Platform, the location data include position data collecting terminal TE anchor point detect it is all around wireless device identity Identification information and signal strength information;
2) an at least user terminal UE is established with locating platform by accessing wireless network and is communicated to connect, passes through detection Testing result is simultaneously reported locating platform by surrounding wireless signal, to the positioning result for obtaining locating platform and location-based clothes Business, the testing result includes the identification information and signal strength information of all surrounding's wireless devices detected;
3) locating platform is responsible for determining and issuing position data collecting instruction, be reported to position data collecting terminal TE Location data is normalized and stores, by comparing determining for the testing results that report of user terminal UE and database purchase Position data, are determined and positioning result of the matched anchor point of testing result as user terminal UE based on following principle:The positioning The location data and testing result of point are most like, i.e., the wireless device quantity with common identity mark that the two includes is most, And the signal strength Relative distribution difference of these wireless devices is minimum.
9. system according to claim 8, which is characterized in that the position data collecting terminal TE and user terminal UE institutes The periphery wireless device of detection refers to any one or more following equipment:RFID tag, Zigbee nodes, bluetooth equipment, movement Network microcell base station, mobile network's Home eNodeB FEMTO, wireless local network connecting point AP.
10. according to claim 8-9 any one of them systems, which is characterized in that the wireless network refers to that can provide interconnection Any wireless network of net access service, including mobile communications network, WLAN, WiMax network and their evolution Network.
11. according to claim 8-9 any one of them systems, which is characterized in that the anchor point information further comprises fixed The position coordinates and interior architecture title of target area where site, the position data collecting rule include each anchor point inspection Survey time and the collecting sample quantity of location data.
12. according to claim 8-9 any one of them systems, which is characterized in that the identity of the wireless device is this The MAC Address of equipment or the CELL ID of mobile base station.
13. according to claim 8-9 any one of them systems, which is characterized in that the locating platform is to position data collecting The location data for each anchor point that terminal TE is reported be normalized including:
A) the periphery radio equipment data for detecting position data collecting terminal TE in each anchor point according to its signal strength by High to Low arrangement;
B) by the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, the signal strength values new as its.
14. according to claim 8-9 any one of them systems, which is characterized in that the locating platform by compare determine with What the matched anchor point of testing result was based on passes following algorithm realization in principle:
A after) receiving the testing result that user terminal UE is reported, place is normalized in the data of plurality of wireless device Reason, i.e., arranged according to its signal strength, and from high to low by its signal strength subtraction signal most intensity values, is then negated pair Number, the signal strength values new as its;
B) searching database is searched and the matched candidate anchor point of testing result:First examined according to wireless device identification in response information Rope, find with testing result in wireless device identification in response intersection more than or equal to the anchor point of n as candidate anchor point, i.e., At least n wireless device identification in response appears in testing result in the anchor point location data preserved in database, on The value for stating n depends on the quantity N for including wireless device in testing result, according to the 20%-50% setting initial values and basis of N Positioning trip effect dynamic adjusts;
C) further preferably go out to match anchor point:Construct a sequence X={ x for including N number of element1, x2..., xN, wherein x1 > x2> ... > xNAndIts matching degree M is calculated according to the following formula respectively for each candidate anchor point:
Wherein m is the intersection quantity of candidate's anchor point location data and testing result in wireless device identification in response, i.e., two Person has m identical wireless devices, n≤m≤N;By m intersection wireless device of testing result and candidate anchor point location data Data arranged according to signal strength normalized value descending, the signal strength normalized value of the two is denoted as R1 respectivelyiAnd R2i, then on Δ R in face (1) formulai=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen as matched with testing result Anchor point.
15. a kind of mobile position platform, which is characterized in that the mobile position platform is by interface adaptation unit, data processing list Member, Database Unit and administrative unit are constituted;The mobile position platform sends location data to position data collecting terminal TE Acquisition instructions, the position data collecting instruction include anchor point information and position data collecting rule, the anchor point information Floor distribution map including target area where anchor point and the locating point position marked on every floor mapping;It is described Also to user terminal UE and third party, the service provider LBS based on user location provides running fix clothes to mobile position platform Business;Wherein,
1) interface adaptation unit be configurable for by internet connect user terminal UE, position data collecting terminal TE and Service provider LBS of the third party based on user location simultaneously handles their interaction messages between mobile position platform;
2) administrative unit is configurable for whole to all user terminal UE for accessing this mobile position platform, position data collecting The service provider LBS of TE and third party based on user location is held to carry out authentication, permission, active state tracing management, together When content and service logic management are carried out to every LBS service that mobile position platform is carried out, and to being based on this running fix The user that platform carries out LBS service carries out long-distance identity-certifying and rights management;
3) Database Unit is configurable for management and the business datum of record mobile position platform, wherein management data include The service provider LBS of user terminal UE, position data collecting terminal TE, platform user and third party based on user location Attribute information, authentication information, usage record, business datum include the location data of positioning service target area and are closed with position The LBS service data of connection;
4) data processing unit is configurable for the location data that position data collecting terminal TE is reported place is normalized It is stored in the database after reason;By the positioning number for comparing detection and localization result and database purchase that user terminal UE is reported According to based on the determination of following principle and positioning result of the matched anchor point of testing result as user terminal UE:The anchor point Location data and testing result are most like, i.e., the wireless device quantity with common identity mark that the two includes is most, and this The signal strength Relative distribution difference of a little wireless devices is minimum;The business logic processing that LBS service is carried out according to positioning result, to User terminal UE provides positioning service;The location data includes that position data collecting terminal TE owns what anchor point detected The identification information and signal strength information of surrounding wireless device;The detection and localization result that the user terminal UE is reported includes The identification information and signal strength information for all surrounding wireless devices that UE is detected.
16. mobile position platform according to claim 15, which is characterized in that the position data collecting terminal TE and use The periphery wireless device that family terminal UE is detected refers to any one or more following equipment:RFID tag, Zigbee nodes, bluetooth Equipment, mobile network's microcell base station, mobile network's Home eNodeB FEMTO, wireless local network connecting point AP.
17. according to claim 15-16 any one of them mobile position platforms, which is characterized in that the interface adaptation unit User terminal UE, the service provider LBS of position data collecting terminal TE and third party based on user location of processing and shifting Interaction message between dynamic locating platform includes the locating request message comprising detection and localization result of user terminal UE uploads, determines The position data collecting comprising anchor point location data that position data collection station TE is reported is reported, mobile position platform is handed down to The position data collecting instruction of position data collecting terminal TE, mobile position platform are handed down to the location-based service letter of user terminal UE The positioning knot that the Location Request and mobile position platform that the service provider LBS of breath, third party based on user location is sent return Fruit.
18. according to claim 15-16 any one of them mobile position platforms, which is characterized in that the locating platform issues Position data collecting instruction in anchor point information further comprise position coordinates and the interior of target area where anchor point Title is built, position data collecting rule includes time and the collecting sample quantity of each anchor point detection location data, positioning Data collection station TE carries out position data collecting to each anchor point of target area accordingly and reports locating platform.
19. according to claim 15-16 any one of them mobile position platforms, which is characterized in that the body of the wireless device Part mark is the MAC Address of the equipment or the CELL ID of mobile base station.
20. according to claim 15-16 any one of them mobile position platforms, which is characterized in that the locating platform is to fixed The location data of each anchor point that position data collection station TE is reported be normalized including:
A) the periphery radio equipment data for detecting position data collecting terminal TE in each anchor point according to its signal strength by High to Low arrangement;
B) by the signal strength subtraction signal most intensity values of each wireless device, logarithm is then negated, the signal strength values new as its.
21. according to claim 15-16 any one of them mobile position platforms, which is characterized in that the locating platform passes through It compares and determines that the following algorithm of passing in principle being based on the matched anchor point of testing result is realized:
A after) receiving the testing result that user terminal UE is reported, place is normalized in the data of plurality of wireless device Reason, i.e., arranged according to its signal strength, and from high to low by its signal strength subtraction signal most intensity values, is then negated pair Number, the signal strength values new as its;
B) searching database is searched and the matched candidate anchor point of testing result:First examined according to wireless device identification in response information Rope, find with testing result in wireless device identification in response intersection more than or equal to the anchor point of n as candidate anchor point, i.e., At least n wireless device identification in response appears in testing result in the anchor point location data preserved in database, on The value for stating n depends on the quantity N for including wireless device in testing result, according to the 20%-50% setting initial values and basis of N Positioning trip effect dynamic adjusts;
C) further preferably go out to match anchor point:Construct a sequence X={ x for including N number of element1, x2..., xN, wherein x1 > x2> ... > xNAndIts matching degree M is calculated according to the following formula respectively for each candidate anchor point:
Wherein m is the intersection quantity of candidate's anchor point location data and testing result in wireless device identification in response, i.e., two Person has m identical wireless devices, n≤m≤N;By m intersection wireless device of testing result and candidate anchor point location data Data arranged according to signal strength normalized value descending, the signal strength normalized value of the two is denoted as R1 respectivelyiAnd R2i, then on Δ R in face (1) formulai=| R1i-R2i|;The maximum candidate anchor points of matching degree M are finally chosen as matched with testing result Anchor point.
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