WO2012163180A1

WO2012163180A1 - Information pushing method, server and system

Info

Publication number: WO2012163180A1
Application number: PCT/CN2012/073682
Authority: WO
Inventors: 张传明
Original assignee: 北京百度网讯科技有限公司
Priority date: 2011-05-27
Filing date: 2012-04-09
Publication date: 2012-12-06
Also published as: CN102802116B; CN102802116A

Abstract

An information pushing method, server and system, the information pushing method comprising the following steps: S1, receiving user information and locating information sent by a mobile terminal; S2, determining, according to the user information and the locating information, the historical search keyword of a user and the geographic location of the mobile terminal; S3, searching in a preset information pushing base for information matching the historical search keyword of the user and the geographic location; and S4, sending the information matching the historical search keyword of the user and the geographic location to the mobile terminal. Compared to prior art, the benefits of the solution are: performing directive information pushing to different users by analyzing the interests of the users, improving user experience, and saving the system resources and the network resources of an information pushing server or the mobile terminal.

Description

Information push method, server and system

This application claims the priority of the Chinese patent application whose application date is May 27, 2011, and whose application number is 201110141387.9, and whose name is "information push method, server and system".

【技术领域】[Technical Field]

The present invention relates to the field of information technology, and in particular, to an information push method, a server, and a system.

【背景技术】【Background technique】

With the popularization of mobile terminals, the technology of pushing information to mobile terminals has gradually been widely used.

In the prior art, the manner of pushing the information of the mobile terminal is mainly: the information push system cooperates with the operator of the mobile terminal, and when the mobile terminal operator detects that the mobile terminal enters a certain area by the base station set in each area, The information push system can push information related to the area to the mobile terminal. For example, when a mobile terminal enters a certain city or province, the operator of the mobile terminal will push relevant information (weather, tourist attractions, features, etc.) of the city or province to the mobile terminal.

However, the above method does not take into account the difference of users who use the mobile terminal, so that the information pushed by the user may not only cause harassment to the user, but also waste system resources and network resources of the information push system or the mobile terminal.

【发明内容】 [Summary of the Invention]

It is an object of the present invention to provide an improved method of information push.

Another object of the present invention is to provide an improved information push server.

It is still another object of the present invention to provide an improved information push system.

Correspondingly, the information pushing method of an embodiment of the present invention includes:

S1. Receive user information and positioning information sent by the mobile terminal.

S2. Determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information.

S3. Find, in a preset information push library, information that matches the user history search keyword and the geographic location;

S4. Send information that matches the user history search keyword and the geographic location to the mobile terminal.

Correspondingly, the information push server of an embodiment of the present invention includes:

a network module, configured to receive user information and positioning information sent by the mobile terminal;

a querying module, configured to determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information;

The matching module searches for information matching the user history search keyword and the geographic location in a preset information push library;

The network module is further configured to send the information to the mobile terminal.

Correspondingly, the information pushing system of an embodiment of the present invention includes:

It includes a mobile terminal connectable to the network, and an information push server as described above.

Compared with the prior art, the invention has the beneficial effects that: by analyzing the user's interest points, the targeted information is pushed to different users, the user experience is better, and the system resources of the information push server or the mobile terminal are saved. Internet resources.

【附图说明】 [Description of the Drawings]

1 is a flowchart of an information push method according to an embodiment of the present invention;

Figure 2 is a specific flow chart of the step S3 in Figure 1;

3 is a flowchart of constructing a positioning database in an information pushing method according to an embodiment of the present invention;

Figure 4 is a flow chart of the first embodiment of the estimating method of Figure 3;

Figure 5 is a flow chart of a second embodiment of the method of estimating in Figure 3;

Figure 6 is a flow chart of a third embodiment of the estimating method of Figure 3;

7 is a flowchart of constructing a positioning database in an information pushing method according to another embodiment of the present invention;

Figure 8 is a block diagram of an information push system in accordance with an embodiment of the present invention.

【具体实施方式】【detailed description】

The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

As shown in FIG. 1 , in an embodiment of the present invention, the information pushing method includes:

S1: receiving user information and positioning information sent by the mobile terminal; preferably, the mobile terminal may access a network, which may include a mobile phone, a notebook, a tablet, etc., and the network may be a mobile network (GPRS, EDGE, 3G, etc.) And/or a wireless network (WIFI, etc.), etc., in this step, the mobile terminal may scan the positioning information related to the current location of the user in a set manner (predetermined interval time or real-time manner, etc., the positioning information is In an embodiment of the present invention, at least one of geographic coordinates, WIFI information, and base station information may be included, and the positioning information may be scanned by a GPS module, a WIFI module, or a base station module that is provided by the mobile terminal or externally. In the embodiment, it is not necessary to include all of the modules as long as the mobile terminal comes with or externally connects at least one of them. The user information may include user account information and/or user cookie information in an embodiment of the present invention. By sending user information, the server may be configured to determine a user who sends the positioning information, so as to retrieve the historical search keyword of the user. .

S2. Determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information. Preferably, the user information is used to query the historical search keyword database in the server to match the user. Historical search keywords, of course, the historical search keywords may not be limited to historical keywords searched on the mobile terminal, but may also include search keywords that the user queries using other search engines on other devices. In an embodiment of the present invention, if the positioning information includes GPS information, the GPS information may be directly used to determine the geographic location of the mobile terminal; in another embodiment of the present invention, if the positioning information does not include GPS information. , but only the attribute information of the wireless communication device, such as the WIFI and/or the attribute information of the base station (MAC address, CELL) ID, etc., the matching is performed in the positioning database by the attribute information of the wireless communication device, and the geographical location of the wireless communication device is confirmed by the matching result. Of course, how the above two embodiments determine the geographical location of the wireless communication device Those skilled in the art can already grasp the prior art and will not be described here.

S3. Search for information matching the user history search keyword and the geographic location in a preset information push library. Preferably, the information push library has at least one piece of information, where the information includes a keyword and The geographic location covers the attribute characteristics of the area, and the keyword and the geographical coverage area are obtained by default. For example, 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.

S4. Send information that matches the user history search keyword and the geographic location to the mobile terminal. Still using the above example, if the user history search keyword appears "BMW", the geographic location is within the service geographic location coverage area, and when the service validity time, that is, the matching condition is met, then the time is The information can be pushed to the mobile terminal. Of course, the push mode can be various, such as pushing by short message, pushing by multimedia message, pushing by webpage, and the like. It will be appreciated that in a preferred embodiment of the invention, the time factor is not required.

As shown in FIG. 2, in an embodiment of the present invention, the step S3 specifically includes:

S31. Search for the user history search keyword and the geographic location in a preset information push library. Preferably, the user history search keyword and the geographic location are searched in the information push library. The attribute characteristics of the matched information.

S32. Determine whether the information push library has information that covers the geographic location and matches the user history search keyword; if yes, go to step S4, if no, go to step S33; preferably, in the present invention In an embodiment, it may be first determined whether there is information covering the geographical location in the information push library, and if yes, in the information covering the geographic location, whether to have information of the user history search keyword When both conditions are satisfied, the process proceeds to step S4. When the two conditions are not satisfied, the process proceeds to step S33. Of course, in another embodiment of the present invention, the information may be first determined in the information push library. Whether there is information of the user history search keyword, if any, in the information having the user history search keyword, it is further determined whether there is information covering the geographical location; when both conditions are satisfied, the process proceeds to S4. In the step, when the two conditions are not satisfied, the process proceeds to step S33.

S33. Do not push information.

It can be seen from the above that 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.

As shown in FIG. 3, in an embodiment of the present invention, when the location information collected by the mobile terminal is the attribute information of the wireless communication device, the method for constructing the location database for determining the geographic location of the mobile terminal includes the following steps:

S100. Receive attribute information of multiple wireless communication devices. Preferably, attribute information of the multiple wireless communication devices is collected by a mobile terminal that can access the network, and the mobile terminal may collect multiple wireless devices. The attribute information of the communication device is uploaded to the server through a network, and the mobile terminal may include a mobile phone, a notebook, a tablet, etc., and the network may be performed through a mobile network (GPRS, EDGE, 3G, etc.) and/or a wireless network (WIFI, etc.). access. 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.

S200: Match attribute information of the multiple wireless communication devices with an existing positioning database. Preferably, when the server receives the attribute information of the wireless communication device collected by the mobile terminal, the server may perform an existing positioning database. The matching manner may include multiple types. For example, 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. For example, in the geographic location (x1, y1), 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. Of course, 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.

S300. Confirm, 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, collecting Querying the existing positioning database by using the attribute information of the plurality of wireless communication devices, and using the wireless communication device queried in the existing positioning database as a known wireless communication device; or by using the existing positioning database The attribute information of the plurality of wireless communication devices is back-checked, and the wireless communication device included in the queried existing positioning database is used as a known wireless communication device.

S400. Calculate, by using a geographic location of the known wireless communication device, an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices. After the step, 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. In the preferred embodiment of the present invention, the positioning database and the known positioning database may be a database. In the embodiment of the present invention, the positioning database and the known positioning database are separately expressed for convenience of understanding. Preferably, 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.

It can be seen from the above that the present invention can expand the positioning information of the existing positioning database through the collected WIFI information and/or the base station information without collecting the geographical location, and has a wide range of use, and can effectively establish a comprehensive range. Locate the database.

As shown in FIG. 4, in the first embodiment of the present invention, the calculating method specifically includes:

Finding an average of the geographic location of the known wireless communication device as a central point; that is, calculating an arithmetic mean of the geographic locations of one or more known wireless communication devices, and 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).

Deriving an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the center point. Preferably, the geographic location of the central point is taken as the estimated geographic location of the unknown wireless communication device. Of course, 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.

In the first embodiment, preferably, the method further includes the step of confirming the geographic location reliability of the known wireless communication device, including:

Finding the distance between the geographic location of each known wireless communication device and the center point, and calculating the average distance between all known wireless communication devices and the center point; referring to the above example, it is found (x1, Y1) the distance from ((x1+x2+x3)/3,( y1+y2+y3)/3), (x2, y2) and ((x1+x2+x3)/3,( The distance of y1+y2+y3)/3), the distance between (x3, y3) and ((x1+x2+x3)/3, ( y1+y2+y3)/3), and calculate their average value, Get the average distance.

Determining whether the average distance is less than a preset threshold; wherein 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. Preferably, after a plurality of experiments, in the present embodiment, the threshold is set to 100 m.

If 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.

If the threshold is greater than the preset threshold, 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.

As shown in FIG. 5, in the second embodiment of the present invention, the calculating method specifically includes:

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).

Estimating a geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the minimum distance point. Preferably, the geographic location of the minimum distance point is taken as the estimated geographic location of the unknown wireless communication device. Of course, 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.

In the second embodiment, preferably, the method further includes the step of confirming the geographic location reliability of the known wireless communication device, including:

Finding a distance between a geographical location of each known wireless communication device and the minimum distance point, and calculating an average distance between all known wireless communication devices and the minimum distance point; referring to the above example, finding (x1, Y1) The distance from the minimum distance point, the distance between (x2, y2) and the minimum distance point, and the distance between (x3, y3) and the minimum distance point, and their average values are calculated to obtain the average distance.

If the preset threshold is less than, 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.

If the threshold is greater than the preset threshold, 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.

As shown in FIG. 6, in the third embodiment of the present invention, the calculating method specifically includes:

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. Preferably, the geographic location of the center of the smallest circumscribed circle is taken as the estimated geographic location of the unknown wireless communication device. Of course, 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.

In the third embodiment, preferably, the method further includes the step of confirming the geographic location reliability of the known wireless communication device, including:

Finding a distance between a geographic location of each known wireless communication device and a center of the minimum circumscribed circle, and calculating an average distance between all known wireless communication devices and a center of the minimum circumscribed circle; Out (x1, Y1) the distance from the center of the smallest circumcircle, the distance between (x2, y2) and the center of the smallest circumscribed circle, (x3, Y3) The distance from the center of the smallest circumscribed circle and calculate their average value to obtain the average distance.

If it is less than the preset threshold, performing the step of “determining the estimated geographic location of the unknown wireless communication device in the plurality of wireless communication devices by using a center of the minimum circumscribed circle”; that is, if the pre-predetermined Given the threshold, it is considered that the geographic location of the known wireless communication device is 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.

It can be seen from the above that 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: In order to bind the WIFI information and/or the base station information to the geographical location, 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. ID, such a collection method, in reality, especially for the city, there may be more than one base station signal and WIFI signal in the same place, if it is still collected one by one in the prior art, at each location It takes more time to collect, which results in very low collection efficiency and very long data collection period, which is not conducive to building an electronic map location database and wasting mobile terminal and server resources.

As shown in FIG. 7, a method for expanding a positioning database according to another embodiment of the present invention includes the following steps:

S400. Calculate, by using a geographic location of the known wireless communication device, an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices. After the step, 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. In the preferred embodiment of the present invention, the positioning database and the known positioning database may be a database. In the embodiment of the present invention, the positioning database and the known positioning database are separately expressed for convenience of understanding. Preferably, 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.

S500. If the attribute information of the received multiple wireless communication devices includes the base station attribute information, calculate, 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. The coverage area of the base station is obtained by using multiple geographic locations and estimated geographic locations of the same base station in the existing positioning database. After the step, 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 in step S100 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. It is worth mentioning that the estimation method may adopt the above-mentioned estimation method described in detail in conjunction with FIG. 4 to FIG. 6. Although 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.

Preferably, before the step S400 in each embodiment, the method further includes the following steps:

Filtering invalid known wireless communication devices (not shown). Although in general, 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 step S400, it is also necessary to filter out the wireless communication device that searches for the same attribute in the known location database and is geographically distant, and establishes a blacklist according to the 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.

FIG. 8 is a structural diagram of an information push system according to an embodiment of the present invention. The information push system of the present invention includes a mobile terminal 10 and a server 20 in communication with the mobile terminal.

The mobile terminal 10 can access a network, which can include a mobile phone, a notebook, a tablet, etc., and the network can be a mobile network (GPRS, EDGE, 3G, etc.) and/or a wireless network (WIFI, etc.), etc. The mobile terminal can be used to scan the positioning information related to the current location of the user in a set manner (predetermined interval or real time, etc.), and send the positioning information to the server 20, where the positioning information can be used in an embodiment of the present invention. Including at least one of geographic coordinates, WIFI information, and base station information, the positioning information may be scanned by a GPS module, a WIFI module, or a base station module that is provided by the mobile terminal or externally. Of course, in this embodiment, the modules are also It is not necessarily all required, as long as the mobile terminal comes with or externally connects at least one of them. The mobile terminal is further configured to store user information and send user information to the server 20. The user information may include user account information and/or user cookie information in an embodiment of the present invention. By sending the user information, the server may be configured to determine the user who sent the positioning information, so as to retrieve the historical search key of the user. word.

The server 20 includes:

The network module 201 is configured to receive user information and positioning information sent by the mobile terminal;

The query module 202 is configured to determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information; preferably, the user search information may be queried in the historical search keyword database 204 in the server. To the historical search keyword that matches the user, of course, the historical search keyword may not be limited to the historical keyword searched on the mobile terminal, but may also include the search key that the user uses the search engine to query on other devices. word. In an embodiment of the present invention, if the positioning information includes GPS information, the GPS information may be directly used to determine the geographic location of the mobile terminal; in another embodiment of the present invention, if the positioning information does not include GPS information. , but only the attribute information of the wireless communication device, such as the WIFI and/or the attribute information of the base station (MAC address, CELL) ID, etc., then matching is performed in the location database 205 by the attribute information of the wireless communication device, and the geographic location of the wireless communication device is confirmed by the matching result. Of course, how the above two embodiments determine the geographic location of the wireless communication device The position of the person skilled in the art can already be mastered by the prior art, and details are not described herein again.

The matching module 203 searches for information matching the user history search keyword and the geographic location in a preset information push library. Preferably, 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. For example, 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 network module 201 is further configured to send the information to the mobile terminal. Still using the above example, if the user history search keyword appears "BMW", the geographic location is within the service geographic location coverage area, and when the service validity time, that is, the matching condition is met, then the time is The information can be pushed to the mobile terminal. Of course, the push mode can be various, such as pushing by short message, pushing by multimedia message, pushing by webpage, and the like. It will be appreciated that in a preferred embodiment of the invention, the time factor is not required.

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.

And determining whether the information push library has information that covers the geographic location and matches the user history search keyword; preferably, in an embodiment of the present invention, the information push library may be first determined. Whether there is information covering the geographical location, if any, in the information covering the geographical location, it is determined whether there is information of the user history search keyword; when both conditions are met, the network module sends Related information, when the two conditions are not satisfied, the information is not sent; of course, in another embodiment of the present invention, it may be determined whether the information of the user history search key is included in the information push library, if If yes, in the information having the user history search keyword, it is determined whether there is information covering the geographical location; when both conditions are met, the relevant information is sent through the network module, when the two conditions are not When satisfied, no information is sent.

In an embodiment of the present invention, 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. Preferably, 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. For example, in the geographic location (x1, y1), 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. Of course, 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. After the step, 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. In the preferred embodiment of the present invention, the positioning database 205 and the known positioning database may be a database. In the embodiment of the present invention, the positioning database 205 and the known positioning database are separated for convenience of understanding. Expression. Preferably, 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.

In the first embodiment of the present invention, the estimating module 208 is further configured to:

In this embodiment, the server 20 further includes a determining module 209, where the determining module 209 is configured to:

In the second embodiment of the present invention, the estimating module 208 is further configured to:

In the third embodiment of the present invention, the estimating module 208 is further configured to:

It can be seen from the above that 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. ID, such a collection method, in reality, especially for the city, there may be more than one base station signal and WIFI signal in the same place, if it is still collected one by one in the prior art, at each location It takes more time to collect, which results in very low collection efficiency and very long data collection period, which is not conducive to building an electronic map location database and wasting mobile terminal and server resources.

In another embodiment of the invention, the estimating module 208 is further configured to:

If 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. After the step, 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. It is worth mentioning that the estimation method may adopt the above-mentioned estimation method described in detail in conjunction with FIG. 4 to FIG. 6. Although 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.

Preferably, the server 20 further includes a filtering module 207, where the filtering module 207 is configured to:

Filtering invalid known wireless communication devices (not shown). Although in general, 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. 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.

For the convenience of description, the above devices are described separately by function into various units. Of course, the functions of each unit may be implemented in the same software or software and/or hardware when implementing the present application.

It will be apparent to those skilled in the art from the above description of the embodiments that 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.

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.

It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

Claims

An information pushing method, characterized in that the information pushing method comprises the following steps:

S1. Receive user information and positioning information sent by the mobile terminal.

S2. Determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information.

S3. Find, in a preset information push library, information that matches the user history search keyword and the geographic location;

S4. Send information that matches the user history search keyword and the geographic location to the mobile terminal.
The information pushing method according to claim 1, wherein the step S3 specifically comprises:

S31. Search for the user history search keyword and the geographic location in a preset information push library.

S32. Determine whether the information push library has information that covers the geographic location and matches the user history search keyword; if yes, the process proceeds to step S4.
The information pushing method according to claim 1, wherein

The positioning information is attribute information of the wireless communication device,

The step of determining the geographic location of the mobile terminal according to the positioning information includes:

Attribute information of the wireless communication device is matched in a positioning database;

Confirming the geographic location of the wireless communication device by matching;

The method for constructing the positioning database includes:

S100. Receive attribute information of multiple wireless communication devices.

S200. Match attribute information of the multiple wireless communications devices with an existing positioning database.

S300. Confirm, by matching, a known wireless communication device having a known geographic location in the positioning database;

S400. Calculate, by using a geographic location of the known wireless communication device, an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices.
The information pushing method according to claim 3, wherein the calculating method specifically comprises:

Finding an average of the geographic locations of the known wireless communication devices as a central point;

Deriving an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the center point.
The information push method according to claim 4, further comprising: after the step of: determining an average value of a geographical location of the known wireless communication device as a center point, the method further comprises:

Determining a distance between a geographic location of each known wireless communication device and the center point, and calculating an average distance between all known wireless communication devices and the center point; determining whether the average distance is less than a preset threshold; If the threshold is smaller than the preset threshold, the step of “calculating the estimated geographic location of the unknown wireless communication device in the plurality of wireless communication devices by the central point” is performed.
The information pushing method according to claim 3, wherein the calculating method specifically comprises:

Finding a minimum distance point that is the smallest sum of distances from geographic locations of the known wireless communication devices;

Estimating a geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the minimum distance point.
The information pushing method according to claim 6, wherein after the step of "finding a minimum distance point to the sum of distances from geographical locations of the known wireless communication devices", the method further comprises:

Determining a distance between a geographic location of each known wireless communication device and the minimum distance point, and calculating an average distance between all known wireless communication devices and the minimum distance point; determining whether the average distance is less than a preset threshold If less than the preset threshold, performing the step of “inferring the estimated geographic location of the unknown wireless communication device among the plurality of wireless communication devices by the minimum distance point” step.
The information pushing method according to claim 3, wherein the calculating method specifically comprises:

Finding a minimum circumcircle of the geographic location of the known wireless communication device;

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 information pushing method according to claim 8, wherein after the step of "determining a minimum circumscribed circle of the geographical location of the known wireless communication device", the method further comprises:

Finding a distance between a geographic location of each known wireless communication device and a center of the minimum circumscribed circle, and calculating an average distance between all known wireless communication devices and a center of the minimum circumscribed circle; determining whether the average distance is less than And a preset threshold; if less than the preset threshold, performing the step of “determining an estimated geographic location of the unknown wireless communication device in the plurality of wireless communication devices by using a center of the minimum circumscribed circle”.
The information pushing method according to claim 3, wherein the step S400 further comprises:

S500. If the attribute information of the received multiple wireless communication devices includes the base station attribute information, calculate, 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. The coverage area of the base station is obtained by using multiple geographic locations and estimated geographic locations of the same base station in the existing positioning database.
An information push server, wherein the information push server comprises:

a network module, configured to receive user information and positioning information sent by the mobile terminal;

a querying module, configured to determine a historical search keyword of the user and a geographic location of the mobile terminal according to the user information and the positioning information;

The matching module searches for information matching the user history search keyword and the geographic location in a preset information push library;

The network module is further configured to send the information to the mobile terminal.
The information push server according to claim 11, wherein the matching module is further configured to:

Searching the user history search keyword and the geographic location in a preset information push library;

Determining whether the information push library has information covering the geographic location and matching the user history search keyword.
The information push server according to claim 11, wherein

The positioning information is attribute information of the wireless communication device.

The query module is used to:

Attribute information of the wireless communication device is matched in a positioning database;

Confirming the geographic location of the wireless communication device by matching; wherein the positioning database is constructed by the following modules in the information push server:

a network module, configured to receive attribute information of multiple wireless communication devices;

a query module, configured to match attribute information of the multiple wireless communication devices with an existing positioning database;

And a known wireless communication device for confirming a known geographic location in the location database by matching;

And an estimating module, 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 information push server according to claim 13, wherein the calculation specific module is used to:

Finding an average of the geographic locations of the known wireless communication devices as a central point;

Deriving an estimated geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the center point.
The information push server according to claim 14, wherein the information push server further comprises:

a determining module, configured to determine a distance between a geographic location of each known wireless communication device and the center point, and calculate an average distance between all known wireless communication devices and the center point; and determine whether the average distance is less than a pre- And a threshold value; if less than the preset threshold, the estimated geographic location of the unknown wireless communication device is estimated by the estimating module.
The information push server according to claim 13, wherein the estimating module is specifically configured to:

Finding a minimum distance point that is the smallest sum of distances from geographic locations of the known wireless communication devices;

Estimating a geographic location of the unknown wireless communication device of the plurality of wireless communication devices by the minimum distance point.
The information push server according to claim 16, wherein the information push server further comprises:

a determining module, configured to determine a distance between a geographic location of each known wireless communication device and the minimum distance point, and calculate an average distance between all known wireless communication devices and the minimum distance point; determine whether the average distance is If the threshold value is less than the preset threshold, the estimated geographic location of the unknown wireless communication device is estimated by the estimating module.
The information push server according to claim 13, wherein the estimating module is specifically configured to:

Finding a minimum circumcircle of the geographic location of the known wireless communication device;

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 information push server according to claim 18, wherein the information push server further comprises:

a determining module, configured to determine a distance between a geographic location of each known wireless communication device and a center of the minimum circumscribed circle, and calculate an average distance between all known wireless communication devices and a center of the minimum circumscribed circle; Whether the average distance is less than a preset threshold; if less than the preset threshold, the estimated geographic location of the unknown wireless communication device is estimated by the estimating module; if the preset threshold is greater than the preset threshold, the current location is ended. Expand the positioning database.
A system for expanding a positioning database, comprising a mobile terminal connectable to a network, and an information push server according to claim 11.