CN103024659A - Mobile locating method and system - Google Patents
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Abstract
The invention provides a mobile locating method and system, and a mobile terminal device and a locating platform related to the method and the system. Multiple locating data acquisition terminals (TE) and user equipment (UE) are connected with the locating platform by accessing a wireless network so as to form the mobile locating system. The TE acquire locating data of a locating point and report the acquired data to the locating platform, and the locating platform normalize the data and stores the data in a database; the UE detects surrounding wireless signals and report a measurement result to the locating platform; and the locating platform compares the measurement result of the UE and the locating data stored in the database, determines the locating point matched with the measurement result as a locating result of the UE, and carries out LBS (Location Based Service) according to the locating result. By the implementation of the method and the system provided by the invention, the LBS can be carried out in indoor public places such as marketplaces, coffee houses, bars, office buildings and airports.
Description
Technical field
The present invention relates to location method and system, relate in particular to method and system and relevant apparatus that comprehensive utilization wireless measurement technology and mobile communication technology provide positioning service.
Background technology
In mobile network's value-added service industry, service is a class important application based on the LBS (Location Based Service) of customer position information, and the development in recent years impetus is swift and violent, emerges various omnifarious LBS services on the market.Except traditional navigation service, what in recent years relatively enliven on market is the application of following several types:
The service of registering of position-based information, this service can be combined geographical location information with social network sites, can register the simultaneously website of a plurality of geo-location service of user;
The search service of position-based information is namely according to the interested peripheral trade company of customer position information search subscriber information on services;
The business information Push Service of position-based information, the LBS that releases such as U.S. Getyowza company serves (http://getyowza.com/), the client that the user provides by Getyowza is installed, Getyowza can be according to user's geographical position, near the coupon information will pushing to the user;
The reality-virtualizing game of position-based information.
The basis of all these LBS services at first is to locate more accurately user terminal, and present positioning means mainly is to rely on the built-in GPS of smart mobile phone, also in conjunction with the mobile network location, also has report to adopt the WAP site assist location sometimes.Strengths and weaknesses analysis to these several localization methods is as follows:
The GPS location, as long as the built-in GPS function of user mobile phone, accuracy height and user need not as locating any expense of payment itself under outdoor good wireless environment; The previous subject matter of order is that dense city high building environment usually can't be located, indoor can't the location;
The mobile network location, indoor, outdoor environment all can use, and shortcoming is that positioning accuracy is relatively poor, often can not satisfy the requirement of LBS service, and needs supplementary payments positioning service expense;
UCWEB mobile phone browser location, indoor, outdoor environment all can use, and adopts the mobile network to locate similar scheme, faces equally the problem of low precision.
In addition, the targeting scheme RTLS that some utilize short distance wireless technical and triangulation technique to realize also appears in recent years, such as the WiFi navigation system.Their working mechanism all is by disposing many locating base station, and then terminal to be positioned is closed on the signal strength signal intensity of locating base station by measurement and by calculating position coordinates such as triangle location algorithm model.The subject matter of these technical schemes is to know in advance the accurate location coordinate of locating base station in the locating area, although and be deployed with a large amount of WiFi access points in the present various indoor environment, but but can't know in advance its concrete coordinate, so the such scheme applicable situation is limited.
In sum, the existing localization method of existing market is still helpless to the accurate location of indoor user, can't satisfy the requirement of carrying out LBS service, and service is said for LBS, exactly had a large amount of LBS potential users in a lot of indoor places such as market, office building, coffee shop.Therefore, a kind of navigation system of market demand can realize the location of above-mentioned indoor environment more exactly, in order to carry out accordingly the LBS service of various high-qualitys.
Summary of the invention
The present invention proposes a kind of location method, and the method may further comprise the steps:
1) position data collecting terminal TE gathers the locator data of anchor point and reports locating platform, and locating platform carries out being stored in the database after the normalized;
2) wireless signal and measurement result reported locating platform around user terminal UE detects;
3) locating platform comparison step 2) measurement result and step 1) locator data, determine and the anchor point of the measurement result coupling positioning result as user terminal UE.
Above-mentioned steps 1) locator data of position data collecting terminal TE collection anchor point is carried out according to the position data collecting instruction that locating platform issues in, comprises the information of target area and anchor point information wherein in this instruction, and the position data collecting rule.The locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.The measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.The peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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 identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
The locator data of each anchor point that the described the 1st) locating platform reports position data collecting terminal TE in the step is carried out normalized and is comprised: position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects; With the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
The described the 3rd) locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle in the step: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.Mentioned above principle realizes by following algorithm: after receiving the measurement result that user terminal UE reports, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values; Candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N; Further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N; According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two is designated as respectively R1i and R2i with the data of m common factor wireless device of measurement result and candidate's anchor point locator data, then above Δ R in (1) formula
i=| R1
i-R2
i|; Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
The present invention also proposes a kind of movable positioning system, comprising:
1) at least one position data collecting terminal TE establishes a communications link by access of radio network and then with locating platform, is responsible for gathering the locator data of anchor point and reporting locating platform;
2) at least one user terminal UE establishes a communications link by access of radio network and then with locating platform, reports locating platform by wireless signal around detecting and with measurement result, thereby obtains positioning result and the location-based service of locating platform;
3) locating platform, be responsible for the locator data that position data collecting terminal TE reports is carried out normalized and storage, the measurement result that reports by comparison user terminal UE and the locator data of database storage, determine and the anchor point of the measurement result coupling positioning result as user terminal UE, and provide positioning service to user terminal UE accordingly.
Described wireless network refers to provide any wireless network of Internet access service, comprises mobile communications network, WLAN (wireless local area network) and their evolvement network.Described position data collecting terminal TE gathers the locator data of anchor point to carry out according to the position data collecting instruction that locating platform issues, and comprises the information of target area and anchor point information wherein in this instruction, and the position data collecting rule.The locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.The measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.The peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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 identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
The locator data of each anchor point that described locating platform reports position data collecting terminal TE is carried out normalized and is comprised: position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects; With the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
Described locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.Mentioned above principle realizes by following algorithm: after receiving the measurement result that user terminal UE reports, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values; Candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N; Further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N; According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two is designated as respectively R1i and R2i with the data of m common factor wireless device of measurement result and candidate's anchor point locator data, then above Δ R in (1) formula
i=| R1
i-R2
i|; Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
The present invention also proposes a kind of mobile position platform, and, data processing adaptive by interface, database and administrative unit consist of, and can provide Location based service based on the service provider LBS of customer location to user terminal UE and third party, wherein,
The interface adaptation unit is responsible for process user terminal UE, position data collecting terminal TE and third party based on the service provider LBS of customer location and the interaction message between the management platform;
Administrative unit is responsible for that all are accessed user terminal UE, the position data collecting terminal TE of this platform and third party and is carried out the management such as authentication, authority, active state tracking based on the service provider LBS of customer location, content and service logic management are carried out in every LBS service of simultaneously platform being carried out, and the user who carries out the LBS service based on this platform is carried out long-distance identity-certifying and rights management;
Management and the business datum of Database Unit record platform, wherein management data comprises user terminal UE, position data collecting terminal TE, platform user and third party based on the attribute information of the service provider LBS of customer location, authentication information, use record etc., business datum comprise the positioning service target area locator data and with the LBS service data of location association;
Data processing unit is responsible for the locator data that position data collecting terminal TE reports is carried out being stored in the database after the normalized; The measurement result that reports by comparison user terminal UE and the locator data of database storage are determined and the anchor point of the measurement result coupling positioning result as user terminal UE; And the business logic processing of carrying out accordingly the LBS service, UE provides positioning service to user terminal.
The user terminal UE that described interface adaptation unit is processed, position data collecting terminal TE and third party comprise the locating request message that comprises positioning measurement result that user terminal UE uploads based on service provider LBS and the interaction message between the management platform of customer location, the position data collecting report that comprises the anchor point locator data that position data collecting terminal TE reports, locating platform is handed down to the position data collecting instruction of position data collecting terminal TE, locating platform is handed down to the location service information of user terminal UE, the third party is based on the Location Request of the service provider LBS transmission of customer location and the positioning result that locating platform returns.
The position data collecting instruction that described locating platform is handed down to position data collecting terminal TE comprises the information of target area and anchor point information wherein, and the position data collecting rule, position data collecting terminal TE positions data acquisition and reports locating platform according to collection rule each anchor point to the target area accordingly.
The locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.The measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.The peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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 identify label of described wireless device is the MAC Address of this equipment or the CELLID of mobile base station.
The locator data of each anchor point that described locating platform reports position data collecting terminal TE is carried out normalized and is comprised: position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects; With the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
Described locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.Mentioned above principle realizes by following algorithm: after receiving the measurement result that user terminal UE reports, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values; Candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N; Further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N; According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two is designated as respectively R1i and R2i with the data of m common factor wireless device of measurement result and candidate's anchor point locator data, then above Δ R in (1) formula
i=| R1
i-R2
i|; Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
The present invention also proposes a kind of movable positioning terminal device, and this device comprises:
A wireless communication unit is responsible under the control of main control unit access of radio network and then is established a communications link with a server that is positioned at the Internet;
A wireless measurement unit, all wireless signals that can detect around being responsible under the control of main control unit, detecting;
A display unit provides to use to the user by display screen to be showed and the use interface;
An input-output unit is responsible for providing operation to use interface by touch-screen or keyboard to the user under main control unit control, by microphone input and loudspeaker, earphone jack output audio information, by bluetooth, USB interface inputoutput data information;
A main control unit is responsible for establishing a communications link by wireless communication unit and a server that is positioned at the Internet, receives supervisory instruction and information on services that this server issues, reports the measurement result of wireless measurement unit.
Described movable positioning terminal device comprises a smart mobile phone and an operation running fix application in the above.Described wireless network refers to provide any wireless network of Internet access service, comprises mobile communications network, WLAN (wireless local area network) and their evolvement network.The measurement result of all wireless signals that can detect comprises identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around the described wireless measurement unit inspection.The identify label of described wireless device is the MAC Address of this equipment or the CELLID of mobile base station.Described peripheral wireless device refers to following any one or plurality of devices: RFID label, Zigbee node, 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.
After reading by reference to the accompanying drawings the detailed description of embodiment of the present invention, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the system architecture of one embodiment of the invention;
Fig. 2 is the functional block diagram of an embodiment of user terminal UE in the system of the present invention;
Fig. 3 is the logic diagram of an embodiment of user terminal UE in the system of the present invention;
Fig. 4 is the functional block diagram of an embodiment of locating platform in the system of the present invention;
Fig. 5 is one embodiment of the invention location computing flow process;
Fig. 6 is the division schematic diagram of position data collecting point in the one embodiment of the invention;
Fig. 7 is based on a positioning service flow process of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the system architecture of an embodiment of system of the present invention, and wherein position data collecting terminal TE and user terminal UE pass through the mobile communications network accessing Internet, and then establishes a communications link with locating platform; Position data collecting terminal TE gathers in advance the locator data of LBS coverage and is uploaded to locating platform; User terminal UE reports own to the measurement result of wireless lan signal particularly of wireless signal on every side; Locating platform receives after the measurement result that UE reports through determining the UE present position after database retrieval, the comparison calculation, and and then carries out accordingly the service (LBS) of position-based information.Certainly, position data collecting terminal TE and user terminal UE also can be not by the mobile network but by the wireless local network accessing Internet and then and locating platform establish a communications link.
The functional block diagram of user terminal UE as shown in Figure 2, wherein wireless communication unit is responsible under the control of main control unit access to mobile network and the data, services accessing Internet by the mobile network, perhaps by the wireless local network accessing Internet; The wireless measurement unit is responsible for detecting the wireless signal of all wireless local network connecting point AP that can detect on every side under the control of main control unit, measures and record system service identifier SSID, MAC (Media Access Control) address, channel number, cipher mode, the information such as signal strength signal intensity RSSI, signal to noise ratio S/N of each AP; Display unit provides to use to the user by display screen to be showed and the use interface; Input-output unit then provides operation to use interface to the user under main control unit control, such as touch-screen or keyboard etc., and by input and output audio frequency, data messages such as microphone, loudspeaker, earphone jack, bluetooth, USB interface; Main control unit establishes a communications link by wireless communication unit and locating platform, reports the WLAN (wireless local area network) measurement result, receives the positioning service information that locating platform issues.On the specific implementation, the function of user terminal UE can be by being used for realizing that Fig. 3 provides its logic diagram in running fix of a smart mobile phone exploitation.Wherein hardware platform provides basic operational capability, communication capacity and external interface take multimedia terminal SOC as core; Linux 2.6 is hardware abstraction layers, and the management of responsible equipment; System services layer provides various system libraries, and all system services are managed by system library such as demonstration, web page browsing and storage etc.; Application development frameworks provides application programming interface (API); All functions for the user all are regarded as using, such as communications applications, entertainment applications and information processing application etc.
The functional block diagram of position data collecting terminal TE and implementation and user terminal UE are similar, its difference is that main control unit connects locating platform by communication unit, receive the position data collecting instruction that locating platform issues, report locating platform after finishing position data collecting by the wireless measurement unit.
The functional units such as locating platform is adaptive by interface, data processing, database and management consist of, as shown in Figure 4.Can be deployed on the separate unit server at locating platform in the physics realization, also can expand needs according to business is deployed in it by in the multiple servers group, wherein different servers is born different functions, and also can continue expansion in order to realize load balancing and data backup for its carrying server of key function.
The interface adaptation unit is responsible for the interaction message between process user terminal UE and the management platform, comprise termination and resolve the message that UE reports according to interface protocol, and information delivered data processing unit or administrative unit is done further processing, the service that simultaneously administrative unit is issued or management information send to user terminal UE after according to the interface protocol encapsulation; The interface adaptation unit also is responsible for processing the Location Request for user terminal UE that third party LBS sends, its request message terminates, and administrative unit is delivered in this request further processed, the result who simultaneously administrative unit is returned sends to Location Request side after encapsulating according to interface protocol.
Administrative unit is responsible for all user terminal UE and third party LBS that access this platform are carried out the management such as authentication, authority, active state tracking, content and service logic management are carried out in every LBS service of simultaneously platform being carried out, and the user who carries out the LBS service based on this platform is carried out long-distance identity-certifying and rights management.
Management and the business datum of Database Unit record platform.Wherein management data comprises attribute information, authentication information, use record of user terminal UE, platform user and third party LBS etc.Business datum comprise the positioning service target area locator data and with the LBS service data of location association, the locator data of positioning service target area comprises the SSID of wireless local network connecting point on every side that locating point position coding and this position probing arrive, MAC Address, channel number, cipher mode, signal strength signal intensity RSSI, signal to noise ratio S/N, the data of each wireless local network connecting point are arranged from high to low according to its signal strength signal intensity RSSI and the process normalized, it is the strongest RSSI value of each access point RSSI value subtraction signal, then negate logarithm is as the RSSI numerical value of this access point record; Comprise the shopping guide's information, sales promotion information, Commdity advertisement, electronics coupon of near businessman this position etc. with the LBS service data of location association.
Data processing unit is responsible for the business logic processing of location computing, database-located pretreatment and the LBS service of process user terminal UE.Locate the computing flow process as shown in Figure 5:
At first the data of a plurality of wireless local network connecting points in the measurement result are arranged from high to low according to its signal strength signal intensity RSSI;
Then the signal strength signal intensity RSSI of each wireless local network connecting point carried out normalized, i.e. the strongest RSSI value of each point RSSI value subtraction signal, negate logarithm then is as the new RSSI numerical value of this point;
The anchor point of retrieve data library lookup and measurement result coupling, concrete steps are as follows: retrieve according to the access point MAC Address first, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in the access point MAC Address, be to have at least the MAC Address of n access point to appear in the measurement result in this locating point data of preserving in the database, the value of said n depends on the quantity N that comprises WAP (wireless access point) in the measurement result, can initial value be set according to the 20%-50% of N, and dynamically adjust according to the locating platform the actual running results; Then from candidate's anchor point, select optimum anchor point as and the anchor point of measurement result coupling, namely construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Then be calculated according to the following formula respectively its matching degree for each candidate's anchor point:
Wherein m is this candidate's anchor point and the common factor quantity of measurement result on the access point MAC Address, and namely the two has m identical access point, obviously n≤m≤N.According to the descending of RSSI normalized value, the RSSI normalized value of the two is designated as respectively R1 with m common factor access point data of measurement result and candidate's anchor point
iAnd R2
i, then above Δ R in (1) formula
i=| R1
i-R2
i|.Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
After finishing for the location computing of user terminal UE reporting measurement data, data processing unit can provide the LBS information on services to user terminal according to predefined service logic.For example data processing unit is by the inquiry LBS service data related with above-mentioned coupling anchor point, in conjunction with the LBS COS that this user of data-base recording orders, determine the LBS service data that pushes to user terminal UE and send to user terminal UE by the interface adaptation unit.
Data processing unit refers to that to the preliminary treatment of database locator data the locator data that reports for position data collecting terminal TE carried out above-mentioned RSSI numerical value normalized before depositing database in, and with each wireless local network connecting point in the locator data according to from high to low arranged sequentially of its signal strength signal intensity RSSI.
The position data collecting instruction that locating platform issues to position data collecting terminal TE comprises that the information of target area and anchor point wherein are the information such as positioning acquisition dot information, and position data collecting rule.Such as target area information such as gps coordinate, market title, floor distribution maps, the positioning acquisition point position that marks on every floor mapping, each some acquisition time and collecting sample quantity etc.For each specific target area, locating platform can be divided into some position data collecting points with it according to the needs of carrying out the LBS service, a market floor face schematic diagram as shown in Figure 6, the places such as inner and doorway, elevator, up-downgoing escalator are provided with 36 position data collecting points in each retail shop.Position data collecting terminal TE positions data acquisition to each collection point accordingly, namely detect the wireless signal of all wireless local network connecting point AP that can detect on every side in each collection point according to collection rule, measure and record system service identifier SSID, MAC Address, channel number, cipher mode, the information such as signal strength signal intensity RSSI, signal to noise ratio S/N of each AP, and by communication unit measurement result is reported locating platform.
In case locating platform is complete with the position data collecting of each anchor point of target area, can carry out accordingly the LBS service.Running fix APP on the user terminal UE provides various LBS service options with the graphical interfaces form to the user, for example obtain coupons, obtain mall shopping information etc., the user positions measurement and reported result by clicking these options triggering user terminals UE, and then obtains the LBS information on services of locating platform.Fig. 7 has provided a market coupons and has automatically pushed flow process:
1) user initiates a LBS service request, for example obtains the discount volume of retail shop on every side;
2) user terminal UE positions measurement;
3) finish backward locating platform and send the LBS service request, comprising LBS service type, user and the information such as terminal identity, positioning measurement result;
4) locating platform positions computing accordingly, such as success, then continues next step; Otherwise returning to user terminal UE to provide the LBS service of asking temporarily, re-start the instruction of location survey, UE gets back to step 2 after receiving instruction), totally locate simultaneously the frequency of failure, if locating the frequency of failure continuously, this user surpasses predetermined threshold value Z, then finish this flow process, showing to the user terminal return information to provide the LBS that asks service this moment temporarily;
5) the locating platform user terminal UE position (certain mate anchor point) definite according to the location computing, the retrieval service database finds the retail shop coupons information related with this anchor point, encapsulates these information according to predefined interface specification;
6) the LBS information on services of locating platform after with above-mentioned encapsulation, namely the coupons of retail shop is pushed to user terminal UE near the user present position, finishes this time LBS service.
The present invention takes full advantage of day by day universal at present WLAN (wireless local area network) wireless signal as basis on location, particularly utilize WLAN (wireless local area network) wireless signal penetration capacity weak, little in the indoor environment overlay area, may dispose the characteristics of a plurality of both privately and publicly owned's wireless access point AP in the same interior space, anchor point can be sub-divided near concrete building, concrete floor even the concrete retail shop.Can solve effectively that GPS can't locate under indoor environment, the too poor problem of other network positions means precision.Implement the present invention and can carry out easily the LBS service in public places such as market, coffee shop, bar, office building, airport.
Do not depart from the scope of the present invention and conceive, above-mentioned positioning service system can be made multiple change and distortion, and a lot of variations are apparent for the ordinary skill in the art.For example, embodiment of the invention wireless lan signal around to detect illustrates targeting scheme as example, but locates and be equally applicable to the inventive method by detecting other similar wireless signal.As having disposed at locating area in the positioning label situation based on short distance wireless technicals such as RFID, Zigbee, bluetooths, these short range, wireless signals around detecting; Perhaps in the situation of building inside by microcellulor, indoor distribution, Home eNodeB FEMTO covering, mobile network signals around detecting all can be used as the basis for estimation of locating computing.For the situation of microcellulor, indoor distributed system and Home eNodeB FEMTO, the MAC Address of the alternative above-mentioned wireless local network connecting point AP of its CELL ID is as the identification information of this wireless device of unique identification.Except mobile network and WLAN (wireless local area network), position data collecting terminal TE and user terminal also can establish a communications link by wireless network and the locating platform of any Internet of providing access service, for example evolvement network of WiMAX network, mobile communications network and WLAN (wireless local area network) (LTE, 4G) etc.
Description of the invention provides for example, is not exhaustively or limit the invention to disclosed form.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.Scope of the present invention is determined by appended claims.
Claims (35)
1. a location method is characterized in that, said method comprising the steps of:
1) position data collecting terminal TE gathers the locator data of anchor point and reports locating platform, and locating platform carries out being stored in the database after the normalized;
2) wireless signal and measurement result reported locating platform around user terminal UE detects;
3) locating platform comparison step 2) measurement result and step 1) locator data, determine and the anchor point of the measurement result coupling positioning result as user terminal UE.
2. method according to claim 1, it is characterized in that, described step 1) locator data of position data collecting terminal TE collection anchor point is carried out according to the position data collecting instruction that locating platform issues in, comprise the information of target area and anchor point information wherein in this instruction, and the position data collecting rule.
3. method according to claim 1 and 2, it is characterized in that the locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.
4. each described method is characterized in that according to claim 1-3, and the measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.
5. according to claim 3 or 4 described methods, it is characterized in that the peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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.
6. according to claim 3 or 4 described methods, it is characterized in that the identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
7. the locator data of each anchor point that each described method is characterized in that according to claim 1-6, the described the 1st) locating platform reports position data collecting terminal TE in the step is carried out normalized and is comprised:
1) position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects;
2) with the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
8. each described method according to claim 1-7, it is characterized in that, the described the 3rd) locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle in the step: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.
9. method according to claim 8 is characterized in that, described locating platform by compare determine with the anchor point institute of measurement result coupling based on pass following algorithm realization in principle:
1) receive the measurement result that user terminal UE reports after, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values;
2) candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N;
3) further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N; According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two is designated as respectively R1 with the data of m common factor wireless device of measurement result and candidate's anchor point locator data
iAnd R2
i, then above Δ R in (1) formula
i=| R1
i-R2
i|; Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
10. a movable positioning system is characterized in that, described system comprises:
1) at least one position data collecting terminal TE establishes a communications link by access of radio network and then with locating platform, is responsible for gathering the locator data of anchor point and reporting locating platform;
2) at least one user terminal UE establishes a communications link by access of radio network and then with locating platform, reports locating platform by wireless signal around detecting and with measurement result, thereby obtains positioning result and the location-based service of locating platform;
3) locating platform, be responsible for the locator data that position data collecting terminal TE reports is carried out normalized and storage, the measurement result that reports by comparison user terminal UE and the locator data of database storage, determine and the anchor point of the measurement result coupling positioning result as user terminal UE, and provide positioning service to user terminal UE accordingly.
11. system according to claim 10 is characterized in that, described wireless network refers to provide any wireless network of Internet access service, comprises mobile communications network, WLAN (wireless local area network) and their evolvement network.
12. according to claim 10 or 11 described systems, it is characterized in that, described position data collecting terminal TE gathers the locator data of anchor point to carry out according to the position data collecting instruction that locating platform issues, comprise the information of target area and anchor point information wherein in this instruction, and the position data collecting rule.
13. each described system according to claim 10-12, it is characterized in that the locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.
14. each described system according to claim 10-13, it is characterized in that the measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.
15. according to claim 13 or 14 described systems, it is characterized in that the peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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.
16. according to claim 13 or 14 described systems, it is characterized in that the identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
17. each described system is characterized in that according to claim 10-16, the locator data of each anchor point that described locating platform reports position data collecting terminal TE is carried out normalized and is comprised:
1) position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects;
2) with the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
18. each described system according to claim 10-17, it is characterized in that, described locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.
19. system according to claim 18 is characterized in that, described locating platform by compare determine with the anchor point institute of measurement result coupling based on pass following algorithm realization in principle:
1) receive the measurement result that user terminal UE reports after, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values;
2) candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N;
3) further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N;
According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two is designated as respectively R1 with the data of m common factor wireless device of measurement result and candidate's anchor point locator data
iAnd R2
i, then above Δ R in (1) formula
i=| R1
i-R2
i|; Choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
20. a mobile position platform is characterized in that, described platform is adaptive by interface, data processing, database and administrative unit consist of, and can provide Location based service based on the service provider LBS of customer location to user terminal UE and third party, wherein,
1) the interface adaptation unit is responsible for process user terminal UE, position data collecting terminal TE and third party based on the service provider LBS of customer location and the interaction message between the management platform;
2) administrative unit is responsible for that all are accessed user terminal UE, the position data collecting terminal TE of this platform and third party and is carried out the management such as authentication, authority, active state tracking based on the service provider LBS of customer location, content and service logic management are carried out in every LBS service of simultaneously platform being carried out, and the user who carries out the LBS service based on this platform is carried out long-distance identity-certifying and rights management;
3) management and the business datum of Database Unit record platform, wherein management data comprises user terminal UE, position data collecting terminal TE, platform user and third party based on the attribute information of the service provider LBS of customer location, authentication information, use record etc., business datum comprise the positioning service target area locator data and with the LBS service data of location association;
4) data processing unit is responsible for the locator data that position data collecting terminal TE reports is carried out being stored in the database after the normalized; The measurement result that reports by comparison user terminal UE and the locator data of database storage are determined and the anchor point of the measurement result coupling positioning result as user terminal UE; And the business logic processing of carrying out accordingly the LBS service, UE provides positioning service to user terminal.
21. mobile position platform according to claim 20, it is characterized in that the user terminal UE that described interface adaptation unit is processed, position data collecting terminal TE and third party comprise the locating request message that comprises positioning measurement result that user terminal UE uploads based on service provider LBS and the interaction message between the management platform of customer location, the position data collecting report that comprises the anchor point locator data that position data collecting terminal TE reports, locating platform is handed down to the position data collecting instruction of position data collecting terminal TE, locating platform is handed down to the location service information of user terminal UE, the third party is based on the Location Request of the service provider LBS transmission of customer location and the positioning result that locating platform returns.
22. mobile position platform according to claim 20, it is characterized in that, the position data collecting instruction that described locating platform is handed down to position data collecting terminal TE comprises the information of target area and anchor point information wherein, and the position data collecting rule, position data collecting terminal TE positions data acquisition and reports locating platform according to collection rule each anchor point to the target area accordingly.
23. each described mobile position platform according to claim 20-22, it is characterized in that the locator data of described anchor point refers to identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that position data collecting terminal TE detects at anchor point.
24. each described mobile position platform according to claim 20-23, it is characterized in that the measurement result of wireless signal comprised identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around described user terminal UE detected.
25. according to claim 23 or 24 described mobile position platforms, it is characterized in that the peripheral wireless device that described position data collecting terminal TE and user terminal UE detect refers to following any one or plurality of devices: RFID label, Zigbee node, 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.
26. according to claim 23 or 24 described mobile position platforms, it is characterized in that the identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
27. each described mobile position platform is characterized in that according to claim 20-26, the locator data of each anchor point that described locating platform reports position data collecting terminal TE is carried out normalized and is comprised:
1) position data collecting terminal TE is arranged according to its signal strength signal intensity from high to low at the peripheral radio equipment data that each anchor point detects;
2) with the strongest value of signal strength signal intensity subtraction signal of each wireless device, negate logarithm then is as its new signal strength values.
28. each described mobile position platform according to claim 20-27, it is characterized in that, described locating platform determines that by comparison the anchor point that mates with measurement result is based on following principle: the locator data of this anchor point is the most similar with measurement result, be that the two wireless device quantity with common identity sign that comprises is maximum, and the relative difference in distribution of the signal strength signal intensity of these wireless devices is minimum.
29. mobile position platform according to claim 28 is characterized in that, described locating platform by compare determine with the anchor point institute of measurement result coupling based on pass following algorithm realization in principle:
1) receive the measurement result that user terminal UE reports after, the data of a plurality of wireless devices are wherein carried out normalized, namely arrange from high to low according to its signal strength signal intensity, and with the strongest value of its signal strength signal intensity subtraction signal, then negate logarithm is as its new signal strength values;
2) candidate's anchor point of retrieve data library lookup and measurement result coupling: first according to the wireless device identification in response information retrieval, find with measurement result and occur simultaneously anchor point more than or equal to n as candidate's anchor point in wireless device identification in response, be to have at least n wireless device identification in response to appear in the measurement result in this anchor point locator data of preserving in the database, the value of said n depends on the quantity N that comprises wireless device in the measurement result, initial value is set and dynamically adjusts according to the positioning trip effect according to the 20%-50% of N;
3) further optimize the coupling anchor point: construct the sequence X that comprises a N element={ x
1, x
2..., x
N, x wherein
1＞x
2＞...＞x
NAnd
Be calculated according to the following formula respectively its matching degree M for each candidate's anchor point:
Wherein m is this candidate's anchor point locator data and the common factor quantity of measurement result on wireless device identification in response, and namely the two has m identical wireless device, n≤m≤N; According to the descending of signal strength signal intensity normalized value, the signal strength signal intensity normalized value of the two divides with the data of m common factor wireless device of measurement result and candidate's anchor point locator data
Be not designated as R1
iAnd R2
i, then above Δ R in (1) formula
i=| R1
i-R2
i|, choose at last candidate's anchor point conduct of matching degree M maximum and the anchor point of measurement result coupling.
30. a movable positioning terminal device is characterized in that, described movable positioning terminal device comprises:
1) wireless communication unit is responsible under the control of main control unit access of radio network and then is established a communications link with a server that is positioned at the Internet;
2) wireless measurement unit, all wireless signals that can detect around being responsible under the control of main control unit, detecting;
3) display unit provides to use to the user by display screen and shows and the use interface;
4) input-output unit, be responsible under main control unit control, providing operation to use interface by touch-screen or keyboard to the user, by microphone input and loudspeaker, earphone jack output audio information, by bluetooth, USB interface inputoutput data information;
5) main control unit is responsible for establishing a communications link by wireless communication unit and a server that is positioned at the Internet, receives supervisory instruction and information on services that this server issues, reports the measurement result of wireless measurement unit.
31. movable positioning terminal device according to claim 30 is characterized in that, described movable positioning terminal device comprises a smart mobile phone and an operation running fix application in the above.
32. according to claim 30 or 31 described running fix terminal UE, it is characterized in that described wireless network refers to provide any wireless network of Internet access service, comprise mobile communications network, WLAN (wireless local area network) and their evolvement network.
33. according to claim 30 or 31 described movable positioning terminal devices, it is characterized in that the measurement result of all wireless signals that can detect comprises identification information, wireless signal strength information, the signal to noise ratio information of all peripheral wireless devices that detect around the described wireless measurement unit inspection.
34. movable positioning terminal device according to claim 33 is characterized in that, the identify label of described wireless device is the MAC Address of this equipment or the CELL ID of mobile base station.
35. according to claim 33 or 34 described movable positioning terminal devices, it is characterized in that described peripheral wireless device refers to following any one or plurality of devices: RFID label, Zigbee node, 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.
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