CN105338493A - Method and device for improving positioning accuracy - Google Patents
Method and device for improving positioning accuracy Download PDFInfo
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- CN105338493A CN105338493A CN201510817971.XA CN201510817971A CN105338493A CN 105338493 A CN105338493 A CN 105338493A CN 201510817971 A CN201510817971 A CN 201510817971A CN 105338493 A CN105338493 A CN 105338493A
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- location
- location information
- geographical position
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
Abstract
The embodiment of the invention discloses a method for improving positioning accuracy and a device for improving positioning accuracy. The method comprises the following steps: a positioning basis of a geographic position change is acquired through a positioning log; history positioning basis information related to the positioning basis of the geographic position change is confirmed; notification message is send to a client and is used for prompting the client to update the confirmed history positioning basis information. According to the technical scheme provided by the embodiment of the invention, the client does not need to update all downloaded offline positioning basis data again, therefore, the data updating efficiency is improved, and the failure time of the offline positioning basis data can be also prolonged; after the updating mechanism of the positioning basis data is utilized, the positioning bad case of offline positioning can be improved, thereby improving the offline positioning accuracy.
Description
Technical field
The embodiment of the present invention relates to off-line field of locating technology, particularly relates to a kind of method and apparatus improving positional accuracy.
Background technology
Off-line location is that location-server is initiatively preserved to client push basis on location data in client, and the basis on location data of propelling movement can be utilized when client receives Location Request to position.But owing to pushing basis on location data to client from location-server, until client use propelling movement basis on location data between be separated by during this period of time very long, basis on location data are during this period of time because the device location of basis on location moves and lost efficacy, such as Wireless Fidelity (WIFI, WirelessFidelity) position such as access point or base station is moved, thus cause location misalignment (badcase, namely bad result is located, the positional information that user is obtained by positioning service positional information that is inaccurate or that obtain departs from the situation that user's actual position exceeds allowed band), positional accuracy is lower.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus improving positional accuracy, to improve basis on location data updating efficiency, improves positional accuracy.
On the one hand, embodiments provide a kind of method improving positional accuracy, comprising:
The basis on location of geographical position change is obtained by location daily record;
Determine the history basis on location information relevant to the basis on location that described geographical position changes;
Send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
On the other hand, the embodiment of the present invention additionally provides a kind of device improving positional accuracy, comprising:
Basis on location acquiring unit, for obtaining the basis on location of geographical position change by location daily record;
Basis on location information determination unit, for the history basis on location information that the basis on location determined to described geographical position changes is relevant;
Notification message transmitting element, for sending a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
The technical scheme that the embodiment of the present invention provides, determine the basis on location of position movement and the history basis on location information relevant to the basis on location of position movement, send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client, client can be made only need to upgrade the basis on location information relevant to the basis on location of position movement, and those potential basis on location data of location badcase that cause are cleaned, without the need to again upgrading all off-line basis on location data once downloaded, improve data updating efficiency, the off-line basis on location data failure time is also extended, in addition, after using above-mentioned basis on location Data renewal mechanism, the location badcase situation of off-line location improves, and improves positional accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet improving the method for positional accuracy that the embodiment of the present invention one provides;
Fig. 2 is a kind of schematic flow sheet improving the method for positional accuracy that the embodiment of the present invention two provides;
Fig. 3 is a kind of structural representation improving the device of positional accuracy that the embodiment of the present invention three provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, hereinafter with reference to the accompanying drawing in the embodiment of the present invention, by execution mode, technical scheme of the present invention is described clearly and completely, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Fig. 1 is a kind of schematic flow sheet improving the method for positional accuracy that the embodiment of the present invention one provides.The method is applicable to need the situation to client push basis on location information, and can be performed by the device of the raising positional accuracy be configured in location-server, described device can by software and/or hardware implementing.See Fig. 1, the localization method that the present embodiment provides specifically comprises following operation:
S110, the basis on location changed by daily record acquisition geographical position, location;
According to the location technology that locating platform uses, described basis on location can comprise WIFI router and/or base station.
In actual applications, after the geographical position change of basis on location, the finger print data library information of this locality that basis on location is corresponding does not upgrade, when the fingerprint characteristic of the basis on location that client scan changes to these geographical position, with the fingerprint database of this locality carry out mating locate time, the positional information that the inaccurate or user of the positioning position information that user can be caused to obtain obtains departs from user's actual position and exceeds allowed band.
Such as, a certain router L is moved to B position from A position, A position and B position apart from each other, and basis on location information corresponding with router L in local fingerprint database does not upgrade, when user uses client to position near B position, client obtains the identification information of the WIFI signal of the router L scanned, and the identification information of the WIFI signal of acquisition and local fingerprint database is carried out mating and locates, probably can navigate near A position.
Server can obtain the basis on location of these geographical position change according to the feedback information of user or location daily record, particularly, if find that there is the position of some anchor points in a certain band of position differs far away with the position of the anchor point of surrounding by location daily record, then can obtain the basis on location information used when difference anchor point far away in these positions is located, and then find out the basis on location of geographical position change.Such as find user in moment t1 located sites at position C by settled date will, in moment t2 located sites at position D, and from t1 to t2 during this period of time, user can not arrive D position from C position, find out the basis on location determining that anchor point C and D position use, and then determine the basis on location of geographical change in location.
S120, determine the history basis on location information relevant to the basis on location that described geographical position changes;
In off-line positioning action, at least one fingerprint characteristic of the surrounding that client arrives by acquisition terminal scanning, namely the media interviews of at least one WIFI access point control (MAC, MediaAccessControl) Cell Global Identification (CGI of address or base station, CellGlobalIdentifier), with the received signal strength value (RSSI of correspondence, ReceivedSignalStrengthIndication), the basis on location information matches stored with this locality positions.According to the location technology that locating platform uses, basis on location information can comprise WIFI and/or base station finger print data library information.WIFI database information can comprise the identification information of WIFI signal and geographical location information corresponding to identification information, and the mark of WIFI signal can be expressed as { MAC1, RSSI1; MAC2, RSSI2; , comprise the mark of multiple WIFI access point in identification information; Base station finger print data library information can comprise the identification information of base station signal and the geographical location information corresponding with identification information, and the mark of base station signal can be expressed as { CGI1, RSSI1; CGI2, RSSI2; .Certainly, when being combined WIFI location and architecture technology, basis on location information can comprise the finger print data library information of WIFI and base station.Server can be searched in basis on location database, the history basis on location information relevant to the basis on location that current geographic position changes.
S130, send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
Specifically, described notification message comprises fixed history basis on location information, and the new basis on location information relevant to the basis on location that geographical position changes.Such as, for the WIFI router that current geographic position is different from historical geography position, the MAC MAC of this router
00 represent, in two-dimensional localization, the history basis on location information determined can for (X0, Y0) | MAC
00, RSSI
00; MAC
01, RSSI
01; MAC
02, RSSI
02; , the new basis on location information relevant to this router determined for (X1, Y1) | MAC
00, RSSI
10; MAC
11, RSSI
11; MAC
12, RSSI
12; , wherein, (X0, and (X1 Y0), the geographical coordinate of the sample reference point Y1) arranged in off-line sample phase for server, can see, all includes the MAC mark of router in history basis on location information and new basis on location information.
Because server does not need the basis on location information sending full dose to client, the data volume of the notification message sent is relatively less, server regularly can send a notification message to client according to the Data Update cycle of setting, also can send a notification message according to the request of user, during as used the poor effect of positioning function as user, initiatively can send by client the request upgrading basis on location information to server.Client upgrades in time basis on location information to adopt above-mentioned Data renewal mechanism to guarantee, controls location misalignment.
It should be noted that, the reason of basis on location geographical position change may be owing to newly there is one or more basis on location in arbitrary place, such as newly-built WIFI access point or base station etc., due to history basis on location information not relevant to these emerging basis on location in the fingerprint database of server and client side this locality storage, server only can send the new basis on location information relevant to the basis on location information that this geographical position changes to client.
On the other hand, after the notified message of client, the fingerprint database stored due to client this locality comprises fixed history basis on location information, and the notification message that server is sent to client comprises fixed history basis on location information, and the new basis on location information relevant to the basis on location that geographical position changes, the fingerprint database that fixed history basis on location information in the notification message that server can be sent stores with client this locality mates, when the match is successful, new basis on location information can be used to replace the local fixed history basis on location information stored.Such as, according to the representation of above-mentioned WIFI basis on location information, client can use new basis on location information (X1, Y1) | MAC
00, RSSI
10; MAC
11, RSSI
11; MAC
12, RSSI
12; Replace fixed history basis on location information (X0, Y0) | MAC
00, RSSI
00; MAC
01, RSSI
01; MAC
02, RSSI
02; .In practice, may occur that the geographical position of some basis on location is always in the situation of constantly change, then determine that these basis on location are not suitable for for location, the basis on location information relevant to these basis on location that this locality stores according to the notification message received, can wash by client.After some basis on location are removed disappearance, the basis on location information relevant to the basis on location that these disappear also can be cleaned by client.
The technical scheme that the present embodiment provides, determine the basis on location of position movement and the history basis on location information relevant to the basis on location of position movement, send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.The basis on location information relevant to the basis on location of position movement only need be upgraded to make client, the cause basis on location data of location badcase potential to those are cleaned, without the need to again upgrading all off-line basis on location data once downloaded, improve data updating efficiency, the off-line basis on location data failure time can also be extended; After using above-mentioned Data renewal mechanism, the location badcase situation of off-line location improves, and improves off-line positional accuracy.
Embodiment two
Fig. 2 is a kind of schematic flow sheet improving the method for positional accuracy that the embodiment of the present invention two provides.The present embodiment is optimized above-described embodiment, and see Fig. 2, the method for the raising positional accuracy that the present embodiment provides specifically comprises following operation:
S210, by location daily record, determine the basis on location that current geographic position is different from historical geography position; Or, by location daily record, determine the basis on location newly occurring in arbitrary geographical position or disappear.
In general, the geographical position change of basis on location is because this basis on location has been moved to another one position from a certain position; Or, be newly occur in somewhere or disappear.Such as, by WIFI router, namely WIFI access point is moved to another position from a position; Or, be newly provided with a WIFI router in any one geographical position or newly built a base station; Moreover, a WIFI router or base station are removed, does not re-use.Then by location daily record, determine the basis on location that current geographic position is different from historical geography position; Or, by location daily record, determine the basis on location newly occurring in arbitrary geographical position or disappear.After determining the current geographic position basis on location different from historical geography position, the geographical position determining these basis on location is also needed whether often to change, in this way, then judge that the basis on location that these geographical position often change is not suitable for location, can by relative basis on location erasing of information.
Whether S220, the history basis on location information determining to push to client comprise the basis on location information that the basis on location that changes with described geographical position mates;
Basis on location information can be WIFI and/or base station finger print data library information, and accordingly, basis on location can be WIFI router and/or base station, such as, the form of WIFI finger print data library information can be (X, Y) | MAC0, RSSI0; MAC1, RSSI1; MAC2, RSSI2; , the MAC Address of general WIFI router is constant, for WIFI location, can determine to push in one or more information in the history finger print data library information of client the MAC mark of the WIFI router whether comprising geographical position change; For architecture, can determine whether one or more information pushed in the history finger print data library information of client comprises the CGI mark of the base station of geographical position change, if, then one or more information pushed in the history fingerprint database of client can be defined as the WIFI router that changes with geographical position and/or base station, the history basis on location information that namely basis on location is relevant.
S230, be if so, then defined as the history basis on location information relevant to the basis on location that described geographical position changes.
S240, send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
The technical scheme that the present embodiment provides, employing correlated judgment mechanism, accurately determine the basis on location of geographical change in location and relative history basis on location information, then send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client, employ efficient basis on location Data renewal mechanism, effectively can control off-line location badcase, and save volume of transmitted data.
Embodiment three
Fig. 3 is a kind of structural representation improving the device of positional accuracy that the embodiment of the present invention three provides.See Fig. 3, described device comprises:
Basis on location acquiring unit 310, for obtaining the basis on location of geographical position change by location daily record;
Basis on location information determination unit 320, for the history basis on location information that the basis on location determined to described geographical position changes is relevant;
Notification message transmitting element 330, for sending a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
Further, described notification message comprises:
Fixed history basis on location information, and the new basis on location information relevant to the basis on location that geographical position changes.
Further, described basis on location comprises: WIFI router and/or base station;
Described basis on location information comprises: WIFI and/or base station finger print data library information.
Further, described basis on location acquiring unit 310 comprises:
First basis on location determination subelement 311, for by location daily record, determines the basis on location that current geographic position is different from historical geography position;
Second basis on location determination subelement 312, for by location daily record, determines the basis on location newly occurring in arbitrary geographical position or disappear.
Further, described basis on location information determination unit 320 comprises:
Basis on location information judgement subunit 321, whether the history basis on location information for determining to push to client comprises the basis on location information that the basis on location that changes with described geographical position mates;
Basis on location information determination subelement 322, if contain the basis on location information of mating with the basis on location that described geographical position changes for the history basis on location packets of information pushing to client, be then defined as the history basis on location information relevant to the basis on location that described geographical position changes.
Said apparatus can perform the method for the raising positional accuracy that any embodiment of the present invention provides, and possesses the corresponding functional module of manner of execution and beneficial effect.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. improve a method for positional accuracy, it is characterized in that, comprising:
The basis on location of geographical position change is obtained by location daily record;
Determine the history basis on location information relevant to the basis on location that described geographical position changes;
Send a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
2. method according to claim 1, is characterized in that, described notification message comprises:
Fixed history basis on location information, and the new basis on location information relevant to the basis on location that geographical position changes.
3. method according to claim 1 and 2, is characterized in that:
Described basis on location comprises: Wireless Fidelity WIFI router and/or base station;
Described basis on location information comprises: WIFI and/or base station finger print data library information.
4. method according to claim 1 and 2, is characterized in that, the described basis on location by location daily record acquisition geographical position change comprises:
By location daily record, determine the basis on location that current geographic position is different from historical geography position; Or
By location daily record, determine the basis on location newly occurring in arbitrary geographical position or disappear.
5. method according to claim 1 and 2, is characterized in that, describedly determines the history basis on location information relevant to the basis on location that described geographical position changes, and comprising:
Whether the history basis on location information determining to push to client comprises the basis on location information that the basis on location that changes with described geographical position mates;
If so, the history basis on location information relevant to the basis on location that described geographical position changes then is defined as.
6. improve a device for positional accuracy, it is characterized in that, comprising:
Basis on location acquiring unit, for obtaining the basis on location of geographical position change by location daily record;
Basis on location information determination unit, for the history basis on location information that the basis on location determined to described geographical position changes is relevant;
Notification message transmitting element, for sending a notification message to client, described notification message upgrades fixed history basis on location information for pointing out client.
7. device according to claim 6, is characterized in that, described notification message comprises:
Fixed history basis on location information, and the new basis on location information relevant to the basis on location that geographical position changes.
8. the device according to claim 6 or 7, is characterized in that:
Described basis on location comprises: WIFI router and/or base station;
Described basis on location information comprises: WIFI and/or base station finger print data library information.
9. the device according to claim 6 or 7, is characterized in that, described basis on location acquiring unit comprises:
First basis on location determination subelement, for by location daily record, determines the basis on location that current geographic position is different from historical geography position;
Second basis on location determination subelement, for by location daily record, determines the basis on location newly occurring in arbitrary geographical position or disappear.
10. the device according to claim 6 or 7, is characterized in that, described basis on location information determination unit comprises:
Basis on location information judgement subunit, whether the history basis on location information for determining to push to client comprises the basis on location information that the basis on location that changes with described geographical position mates;
Basis on location information determination subelement, if contain the basis on location information of mating with the basis on location that described geographical position changes for the history basis on location packets of information pushing to client, be then defined as the history basis on location information relevant to the basis on location that described geographical position changes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817971.XA CN105338493A (en) | 2015-11-23 | 2015-11-23 | Method and device for improving positioning accuracy |
| PCT/CN2016/087696 WO2017088474A1 (en) | 2015-11-23 | 2016-06-29 | Method and apparatus for improving positioning accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817971.XA CN105338493A (en) | 2015-11-23 | 2015-11-23 | Method and device for improving positioning accuracy |
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| CN105338493A true CN105338493A (en) | 2016-02-17 |
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| CN201510817971.XA Pending CN105338493A (en) | 2015-11-23 | 2015-11-23 | Method and device for improving positioning accuracy |
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| WO (1) | WO2017088474A1 (en) |
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| WO2017088474A1 (en) * | 2015-11-23 | 2017-06-01 | 北京百度网讯科技有限公司 | Method and apparatus for improving positioning accuracy |
| CN107463585A (en) * | 2016-06-06 | 2017-12-12 | 中兴通讯股份有限公司 | Finger print data is put in storage processing method and processing device |
| CN107889062A (en) * | 2017-11-24 | 2018-04-06 | 北京小米移动软件有限公司 | The data learning method and device positioned offline |
| CN109462887A (en) * | 2018-12-19 | 2019-03-12 | 京信通信系统（中国）有限公司 | Localization method, device, computer storage medium and equipment based on bluetooth |
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| WO2017088474A1 (en) * | 2015-11-23 | 2017-06-01 | 北京百度网讯科技有限公司 | Method and apparatus for improving positioning accuracy |
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| CN109951805B (en) * | 2017-12-20 | 2021-06-25 | 腾讯科技（深圳）有限公司 | Position data processing method and device and related equipment |
| CN109462887A (en) * | 2018-12-19 | 2019-03-12 | 京信通信系统（中国）有限公司 | Localization method, device, computer storage medium and equipment based on bluetooth |
Also Published As
| Publication number | Publication date |
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| WO2017088474A1 (en) | 2017-06-01 |
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Application publication date: 20160217 |