WO2012163180A1 - Procédé, serveur et système de poussée d'informations - Google Patents

Procédé, serveur et système de poussée d'informations Download PDF

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Publication number
WO2012163180A1
WO2012163180A1 PCT/CN2012/073682 CN2012073682W WO2012163180A1 WO 2012163180 A1 WO2012163180 A1 WO 2012163180A1 CN 2012073682 W CN2012073682 W CN 2012073682W WO 2012163180 A1 WO2012163180 A1 WO 2012163180A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
information
geographic location
communication device
communication devices
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PCT/CN2012/073682
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English (en)
Chinese (zh)
Inventor
张传明
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北京百度网讯科技有限公司
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Publication of WO2012163180A1 publication Critical patent/WO2012163180A1/fr

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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

Definitions

  • the attribute information of the unknown wireless communication device and the estimated geographic location may be bound according to a required format, and stored in the known positioning database to form a positioning database.
  • the positioning database and the known positioning database may be a database.
  • the positioning database and the known positioning database are separately expressed for convenience of understanding.
  • the unknown wireless communication device is a wireless communication device that is not matched in the known positioning database, and the manner of the calculation will be described in detail below with reference to FIGS. 4 to 6.
  • the geographical location serves as a central point, for example, if the geographical location of the known wireless communication device is (x1, Y1), (x2, y2), (x3, y3), then the arithmetic mean is ((x1+x2+x3)/3,( Y1+y2+y3)/3), the geographic location of the center point is ((x1+x2+x3)/3, ( y1+y2+y3)/3).
  • the geographic location of the minimum distance point is taken as the estimated geographic location of the unknown wireless communication device.
  • the estimated geographic location of the unknown wireless communication device may also be used after the appropriate offset is performed on the geographic location of the minimum distance point according to the signal strength of the unknown wireless communication device.
  • the method further includes the step of confirming the geographic location reliability of the known wireless communication device, including:
  • the threshold may be differently set according to different situations or different precisions required, for example, in a city, the threshold may be set relatively small, in a country
  • the threshold may be set relatively large.
  • the threshold is set to 100 m.
  • the step of expanding the positioning database is ended. That is, if the threshold is greater than the preset threshold, it is considered that the geographical location of the known wireless communication device is untrustworthy due to various factors, and the unknown wireless cannot be estimated based on the geographical location of the known wireless communication device. The geographic location of the communication device needs to end the task of expanding the positioning database.
  • the calculating method specifically includes:
  • the threshold may be differently set according to different situations or different precisions required, for example, in a city, the threshold may be set relatively small, in a country
  • the threshold may be set relatively large.
  • the threshold is set to 100 m.
  • the step of expanding the positioning database is ended. That is, if the threshold is greater than the preset threshold, it is considered that the geographical location of the known wireless communication device is untrustworthy due to various factors, and the unknown wireless cannot be estimated based on the geographical location of the known wireless communication device. The estimated geographical location of the communication device needs to end the task of expanding the positioning database.
  • the method for expanding the positioning database can simultaneously estimate the attribute information of the received plurality of wireless communication devices and expand the positioning database, which also solves another defect in the prior art, namely:
  • the MAC address of the WIFI in the prior art and the CELL of the base station are used. IDs can only be collected one by one, that is, in the same geographical location, only one MAC address or one CELL can be collected for each acquisition.
  • a method for expanding a positioning database includes the following steps:
  • S200 Match attribute information of the multiple wireless communication devices with an existing positioning database.
  • the server may perform an existing positioning database.
  • the matching manner may include multiple types.
  • the attribute information of the collected multiple wireless communication devices is used to query the existing positioning database, and the wireless communication device is determined to be stored in the query by using the query result.
  • the existing location database is used to perform reverse check on the attribute information of the plurality of wireless communication devices, and the query result is used to determine whether the wireless communication is included in the existing positioning database. device.
  • the existing positioning database may be built by data collected by a mobile terminal with a GPS module, and the existing positioning database already includes data of a plurality of wireless communication devices with determined geographical locations, and the information contained therein may be Geographically bound WIFI MAC address and/or base station CELL ID, that is, the geographic location of the WIFI can be confirmed by the MAC address of the WIFI and the CELL ID of the base station.
  • the attribute information of the known wireless communication device When it is necessary to filter the invalid wireless communication device, it is only necessary to match the attribute information of the known wireless communication device with the attribute information of the wireless communication device in the blacklist, if it matches the wireless communication in the blacklist.
  • the attribute information of the information device is considered to be filtered out; if the attribute information of the wireless communication device in the blacklist is not matched, the known wireless communication device is considered to be retained.
  • the matching module 203 searches for information matching the user history search keyword and the geographic location in a preset information push library.
  • the information push library 206 is provided with at least one piece of information, where the information includes Keyword and geographic location coverage area attribute characteristics, the keyword and geographic location coverage area are obtained by default.
  • the information is advertising information of a merchant, and the keyword and geographic location coverage area is related to a service specification purchased by the merchant.
  • a standard service includes time, geographic location coverage area, and keywords, such as a service purchased by the merchant A. For: "Time: one week, geographical coverage area: two kilometers, keyword: BMW", that is, the attributes of the information include "time: one week, geographical coverage area: two kilometers, keyword: BMW", Used to match user history search keywords and locations.
  • the matching module 203 is further configured to:
  • Searching the user history search keyword and the geographic location in a preset information push library preferably, searching for the user history search keyword and the geographic location in the information push library
  • the attribute characteristics of the information preferably, searching for the user history search keyword and the geographic location in the information push library
  • the present invention analyzes the user's points of interest and performs targeted information push on different users, which has a good user experience and saves system resources and network resources of the information push server and the mobile terminal.
  • Another advantage of the present invention is that the manner of the information is not necessarily performed by the operator of the mobile terminal, and the means for pushing the information is greatly expanded, so that the user can obtain more information.
  • the network module 201 and the query module 202 may also cooperate with the filtering module 207, the estimating module 208, the determining module 209, and the existing positioning database to construct the positioning database 205.
  • the network module 201 is further configured to receive attribute information of multiple wireless communication devices.
  • the attribute information of the multiple wireless communication devices is collected by using a mobile terminal that can access the network, and the moving The terminal may upload the attribute information of the collected multiple wireless communication devices to the server through a network, where the mobile terminal may include a mobile phone, a notebook, a tablet, etc., which may be through a mobile network (GPRS, EDGE, 3G, etc.) and/or The wireless network (WIFI, etc.) accesses the network.
  • the attribute information may include a MAC address of the WIFI, a signal strength, etc.; CELL of the base station ID, signal strength, country code, carrier code, area code, cell code, etc.
  • the querying module 202 is further configured to match attribute information of the multiple wireless communication devices with an existing positioning database; preferably, after the server receives the attribute information of the wireless communication device collected by the mobile terminal,
  • the method may be matched with the existing positioning database, and the matching manner may include multiple types, for example, querying the collected attribute information of the plurality of wireless communication devices to query the existing positioning database, and determining the wireless by using the query result. Whether the communication device has been stored in the existing positioning database; or the attribute information of the plurality of wireless communication devices is back-checked by the existing positioning database, and whether the existing positioning database is determined by the query result
  • the wireless communication device has been included.
  • the existing positioning database may be built by data collected by a mobile terminal with a GPS module, and the existing positioning database already includes data of a plurality of wireless communication devices with determined geographical locations, and the information contained therein may be Geographically bound WIFI MAC address and/or base station CELL ID, that is, the geographic location of the WIFI can be confirmed by the MAC address of the WIFI and the CELL ID of the base station.
  • the collected base station CELL When ID is ID1, it can be bound to: (x1, y1), data format such as ID1; when the geographical location is (x2, y2), the collected WIFI MAC address is MAC1, it can be bound as: (x2 , Y2), data format such as MAC1; in the geographical location (x3, y3), the collected base station's CELL ID is ID3, and the collected WIFI MAC address is MAC3, which can be bound to (x2, The data format such as y2), ID3, and MAC3.
  • this data format is merely an example for convenience of understanding in an embodiment of the present invention, and may be replaced by other data formats.
  • the query module is further configured to: identify, by matching, a known wireless communication device having a known geographic location in the existing positioning database among the plurality of wireless communication devices; preferably, the confirming may include multiple manners For example, querying the collected attribute information of the plurality of wireless communication devices one by one by querying the existing positioning database, and using the wireless communication device queried in the existing positioning database as a known wireless communication device; or The existing positioning database performs a reverse check on the attribute information of the plurality of wireless communication devices, and the queried wireless communication device included in the existing positioning database is used as a known wireless communication device.
  • the estimating module 208 is configured to calculate an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices by using a geographic location of the known wireless communication device.
  • the attribute information of the unknown wireless communication device and the estimated geographic location may be bound according to a required format, and stored in the known positioning database to form a positioning database 205.
  • the positioning database 205 and the known positioning database may be a database.
  • the positioning database 205 and the known positioning database are separated for convenience of understanding.
  • the unknown wireless communication device is a wireless communication device that is not matched in the known positioning database, and the manner of the calculation will be described in detail above in conjunction with FIGS. 4 to 6.
  • the estimating module 208 is further configured to:
  • the geographic location of the central point is taken as the estimated geographic location of the unknown wireless communication device.
  • the estimated geographic location of the unknown wireless communication device may also be used after the appropriate offset of the geographic location of the central point according to the signal strength of the unknown wireless communication device.
  • the server 20 further includes a determining module 209, where the determining module 209 is configured to:
  • the threshold may be differently set according to different situations or different precisions required, for example, in a city, the threshold may be set relatively small, in a country
  • the threshold may be set relatively large.
  • the threshold is set to 100 m.
  • the threshold is less than the preset threshold, performing the step of “calculating the estimated geographic location of the unknown wireless communication device in the plurality of wireless communication devices by using the central point”; that is, if the preset is smaller than the preset
  • the threshold is then considered to be authentic for the geographic location of the known wireless communication device, and the estimated geographic location of the unknown wireless communication device can be derived based on the geographic location of the known wireless communication device.
  • the step of expanding the positioning database is ended. That is, if the threshold is greater than the preset threshold, it is considered that the geographical location of the known wireless communication device is untrustworthy due to various factors, and the unknown wireless cannot be estimated based on the geographical location of the known wireless communication device. The estimated geographical location of the communication device needs to end the task of expanding the positioning database.
  • the estimating module 208 is further configured to:
  • Finding a minimum distance point that is the smallest of the distances from the geographic locations of the known wireless communication devices for example, if the known geographic location of the wireless communication device is (x1, y1), (x2, Y2), (x3, y3), you need to find a minimum distance point (x4, y4) such that the distance between (x4, y4) and (x1, y1) + (x4, y4) and (x2, The distance of y2) + (x4, y4) and (x3, y3) is less than the distance between any other point and (x1, y1), (x2, y2), (x3, y3).
  • the geographic location of the minimum distance point is taken as the estimated geographic location of the unknown wireless communication device.
  • the estimated geographic location of the unknown wireless communication device may also be used after the appropriate offset is performed on the geographic location of the minimum distance point according to the signal strength of the unknown wireless communication device.
  • the server 20 further includes a determining module 209, where the determining module 209 is configured to:
  • the threshold may be differently set according to different situations or different precisions required, for example, in a city, the threshold may be set relatively small, in a country
  • the threshold may be set relatively large.
  • the threshold is set to 100 m.
  • the step of “calculating the estimated geographic location of the unknown wireless communication device in the plurality of wireless communication devices by using the minimum distance point” is performed; that is, if the preset is smaller than the preset
  • the threshold of the wireless communication device is considered to be authentic, and the estimated geographic location of the unknown wireless communication device can be estimated based on the geographic location of the known wireless communication device.
  • the step of expanding the positioning database is ended. That is, if the threshold is greater than the preset threshold, it is considered that the geographical location of the known wireless communication device is untrustworthy due to various factors, and the unknown wireless cannot be estimated based on the geographical location of the known wireless communication device. The geographic location of the communication device needs to end the task of expanding the positioning database.
  • the estimating module 208 is further configured to:
  • Finding a minimum circumscribed circle of the geographic location of the known wireless communication device for example, if the known geographic location of the wireless communication device is (x1, Y1), (x2, y2), (x3, y3), according to the (x1, y1), (x2, y2), (x3, Y3), find the minimum circumscribed circle of the geographical location of a plurality of known wireless communication devices.
  • An estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices is determined by a center of the minimum circumscribed circle.
  • the geographic location of the center of the smallest circumscribed circle is taken as the estimated geographic location of the unknown wireless communication device.
  • the estimated geographic location of the unknown wireless communication device may also be used after the appropriate offset of the geographic location of the center of the minimum circumscribed circle according to the signal strength of the unknown wireless communication device.
  • the server 20 further includes a determining module 209, where the determining module 209 is configured to:
  • the threshold may be differently set according to different situations or different precisions required, for example, in a city, the threshold may be set relatively small, in a country
  • the threshold may be set relatively large.
  • the threshold is set to 100 m.
  • the step of expanding the positioning database is ended. That is, if the threshold is greater than the preset threshold, it is considered that the geographical location of the known wireless communication device is untrustworthy due to various factors, and the unknown wireless cannot be estimated based on the geographical location of the known wireless communication device. The estimated geographical location of the communication device needs to end the task of expanding the positioning database.
  • the server can simultaneously calculate the attribute information of the received multiple wireless communication devices and expand the positioning database, which also solves another defect in the prior art, that is, in order to / or base station information is bound to the geographical location, the MAC address of the WIFI in the prior art, the CELL of the base station IDs can only be collected one by one, that is, in the same geographical location, only one MAC address or one CELL can be collected for each acquisition.
  • the estimating module 208 is further configured to:
  • the received attribute information of the plurality of wireless communication devices includes the base station attribute information, calculating, by using a geographic location of the known wireless communication device, an estimated geographic location of the known base station among the plurality of wireless communication devices; A plurality of geographical locations and estimated geographic locations of the same base station in the existing positioning database are used to obtain a coverage area of the base station.
  • the attribute information of the known base station and the estimated geographic location of the known base station may be bound in a required format and stored in the known positioning database.
  • the same base station has a certain coverage area. Therefore, in this step, the coverage area of the base station can be derived. If the attribute information of the wireless communication device received by the scanning module includes the attribute information of the base station, this step can be performed.
  • Calculating the coverage area of the received base station specifically: calculating the geographic location of the known and unknown base stations and/or estimating the geographic location, so that the same base station in the existing positioning database corresponds to multiple Calculating the coverage area of the base station by using the plurality of geographic locations and/or estimating the geographic location; of course, if there are multiple geographical locations corresponding to the same base station in the positioning database And/or the estimated number of geographical locations is limited, and the coverage area of the base station cannot be estimated or can not be accurately calculated temporarily. By repeating the above steps, the number of geographical locations corresponding to the same base station and/or the number of estimated geographical locations may be increased. Thereby, the coverage area of the base station is derived more accurately.
  • the estimation method may adopt the above-mentioned estimation method described in detail in conjunction with FIG. 4 to FIG. 6.
  • the above estimation method is mainly for an unknown wireless communication device, it can also be used as a projection for a known wireless communication device.
  • the estimated geographical location is the same as the principle adopted, so it will not be repeated here.
  • the server 20 further includes a filtering module 207, where the filtering module 207 is configured to:
  • wireless communication devices have a globally unique ID, such as the WIFI MAC address, the base station's CELL ID, etc., but it also has the possibility of cloning, so that the WIFI of the same MAC address may be in two different geographical locations, the same CELL
  • the base station of the ID may also be in two different geographical locations, and these different geographical locations are far apart in space, beyond the coverage area of the general equipment, and the known geographical locations of these WIFIs and base stations are not available. Therefore, before the calculation module estimates, it needs to be filtered out.
  • the specific method is: searching for the wireless communication devices with the same attributes and geographical distances in the known positioning database, and establishing a blacklist according to the wireless communication devices.
  • the known wireless communication device When it is necessary to filter the invalid wireless communication device, it is only necessary to match the attribute information of the known wireless communication device with the attribute information of the wireless communication device in the blacklist, if it matches the wireless in the blacklist. If the attribute information of the information device is considered, the known wireless communication device should be filtered out; if the attribute information of the wireless communication device in the blacklist is not matched, the known wireless communication device should be considered to be retained.
  • the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disc, etc., including instructions for causing a computer device (which may be a personal computer, an information push server, or a network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.
  • a computer device which may be a personal computer, an information push server, or a network device, etc.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located A place, or it can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé, un serveur et un système de poussée d'informations, le procédé de poussée d'informations comprenant les étapes suivantes : S1, la réception d'informations d'utilisateur et d'informations de localisation envoyées par un terminal mobile ; S2, la détermination, selon les informations d'utilisateur et les informations de localisation, du mot-clé de recherche historique d'un utilisateur et de l'emplacement géographique du terminal mobile ; S3, la recherche, dans une base de poussée d'informations préétablies, d'informations correspondant au mot-clé de recherche historique de l'utilisateur et à l'emplacement géographique ; et S4, l'envoi des informations correspondant au mot-clé de recherche historique de l'utilisateur et à l'emplacement géographique au terminal mobile. Comparativement à l'état de la technique, les bénéfices de la solution sont les suivants : la réalisation d'une poussée d'informations de directives à différents utilisateurs en analysant les intérêts des utilisateurs, l'amélioration de l'expérience de l'utilisateur, et l'économie des ressources de système et des ressources de réseau d'un serveur de poussée d'informations ou du terminal mobile.
PCT/CN2012/073682 2011-05-27 2012-04-09 Procédé, serveur et système de poussée d'informations WO2012163180A1 (fr)

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CN201110141387.9A CN102802116B (zh) 2011-05-27 2011-05-27 信息推送方法、服务器及系统
CN201110141387.9 2011-05-27

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CN114268955A (zh) * 2021-12-23 2022-04-01 智小途(上海)数字科技有限公司 一种无线通信网络节点信号认知匹配方法与系统
CN114268955B (zh) * 2021-12-23 2023-07-07 智小途(上海)数字科技有限公司 一种无线通信网络节点信号认知匹配方法与系统

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