JP2013026906A - Area analysis system, wireless router, and radio terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an area analysis system capable of analyzing communication state for each location.SOLUTION: The radio terminal comprises: means for receiving a GPS signal and acquiring location information; and means for transmitting the location information to a wireless router. The wireless router comprises: means for acquiring the location information transmitted by the radio terminal; means for registering a communication state containing the location information, a selected WAN side line, and communication data amount utilizing the WAN side line as a communication state list at a predetermined registration cycle; and means for transmitting the communication state list to an area analysis server connected to a network utilizing one of a plurality of WAN side lines at a predetermined cycle. The area analysis server comprises section information list creation means for creating a section information list obtained by integrating a section in accordance with the location information and the communication data amount for each WAN side line on the basis of each communication state list transmitted from each wireless router when one or more wireless routers exist.

Description

  The present invention relates to a wireless communication system in which a wireless terminal equipped with a GPS (Global Positioning System) function is connected to a network via a wireless router that moves together with the wireless terminal, and connects the location information and communication status of the wireless router to the network. The present invention relates to an area analysis system that collects and analyzes the communication status for each location, and a wireless router and a wireless terminal that constitute the area analysis system.

  A wireless router having a plurality of WAN side line interfaces automatically selects and connects an optimal WAN side line, and performs a relay process between the wireless terminal and the WAN side line. For example, when the wireless router is compatible with a mobile phone line and a wireless LAN line, when using a public wireless LAN line when in a public wireless LAN service service area such as a station platform, and moving outside the service area Automatically switches to a mobile phone line. A wireless terminal can select a plurality of WAN-side lines and connect to a network only by providing a connection interface with such a wireless router.

  There is an area analysis system as a system for easily grasping the communication status by the wireless router (Non-Patent Document 1).

  In this area analysis system, each wireless router has a GPS function, receives GPS signals, acquires position information, and records the WAN-side line type and the communication data amount using the WAN-side line at that time. This record is transmitted from each wireless router to the area analysis server, and the area analysis server can grasp the communication status for each place by integrating the communication data amount for each section.

"A study on a location information linkage system for wireless routers", IEICE Society Conference B-15-14, 2010.

  In the prior art, the wireless router needs to have a GPS function, and a wireless router that does not have a GPS function cannot acquire position information and cannot record the amount of communication data for each position. For this reason, the area analysis server cannot be used for analyzing the communication status for each location.

  The present invention uses position information obtained by the GPS function of a wireless terminal wirelessly connected to the wireless router as means for acquiring position information in the wireless router, records the amount of communication data associated with the position information, An object of the present invention is to provide an area analysis system capable of analyzing the communication status of each area, and a wireless router and a wireless terminal constituting the area analysis system.

  A first aspect of the present invention is a wireless communication system in which a wireless terminal connected to a wireless router is connected to a network via one WAN side line of a plurality of WAN side lines selected by the wireless router. Means for receiving the signal and acquiring the position information; and means for transmitting the position information to the wireless router, the wireless router acquiring the position information transmitted by the wireless terminal, the position information, and the selection And a means for registering a communication status including a communication data amount using the WAN side channel as a communication status list at a predetermined registration cycle, and the communication status list of a plurality of WAN side channels at a predetermined cycle. Means for transmitting to one area analysis server connected to the network using one, and the area analysis server is configured to send each wireless router when one or more wireless routers exist. Based on the respective communication status list sent from data, including the segmented information list creating means for creating a partition information list obtained by integrating communication data amount for each partition and WAN side line corresponding to the position information.

In the area analysis system according to the first aspect of the present invention, the wireless terminal transmits position information only during a period in which communication data exists.
In the area analysis system according to the first aspect of the invention, the wireless terminal transmits the position information at a predetermined registration period of the wireless router or a period that is an integer multiple thereof.

In the area analysis system of the first invention, when there are a plurality of wireless terminals, the wireless router registers only the position information acquired from the wireless terminal with the highest received power.
In the area analysis system of the first invention, when there are a plurality of wireless terminals, the wireless router registers the average value of the position information acquired from each wireless terminal as the position information.
In the area analysis system according to the first aspect of the present invention, when there are a plurality of wireless terminals, the wireless router sequentially acquires position information from each wireless terminal.

  According to a second aspect of the invention, in the wireless router of the area analysis system of the first aspect, means for acquiring position information transmitted by a wireless terminal that receives a GPS signal and acquires position information, position information, and a selected WAN A side line, means for registering a communication status including a communication data amount using the WAN side line as a communication status list at a predetermined registration cycle, and one of a plurality of WAN side lines at a predetermined cycle. Means for transmitting to an area analysis server connected to the network.

  According to a third aspect of the invention, in the wireless terminal of the area analysis system of the first aspect of the invention, the wireless terminal receives GPS signals and acquires position information, and means for transmitting the position information to the wireless router.

  In the present invention, even when the GPS function is not installed in the wireless router, the position information obtained by using the GPS function of the wireless LAN terminal connected to the wireless router and the communication data for each line type selected by the wireless router It is possible to analyze the communication status for each place by recording the amount and consolidating it in the area analysis server.

It is a figure which shows the structural example of the area analysis system of this invention. 2 is a diagram illustrating a configuration example of a wireless router 12 and a wireless LAN terminal 13. FIG. It is a figure which shows the example of a communication status list. 3 is a diagram illustrating a configuration example of an area analysis server 14. FIG. It is a figure explaining the concept of the division of a division information list. It is a figure which shows the example of a division information list. FIG. 10 is a diagram illustrating a relationship between a wireless router and a wireless LAN terminal according to a third embodiment. It is a figure which shows the example of a wireless LAN terminal location information list.

FIG. 1 shows a configuration example of an area analysis system of the present invention.
In FIG. 1, wireless LAN base stations AP1 and AP2 connected to a network 11 are installed in a station or a store and provide a public wireless LAN service. The wireless LAN base stations AP1 and AP2 may be installed at home. The mobile phone base station BS is also connected to the network 11, and covers a larger area than the public wireless LAN with one base station. A user possesses a wireless router 12 and a wireless LAN terminal 13, and moves between a wireless LAN area in which communication with the wireless LAN base stations AP1 and AP2 and a mobile phone area in which communication with the mobile phone base station BS is possible. The area analysis server 14 connected to the network 11 has a function of collecting the location information and the communication data amount for each WAN side line from the wireless router 12 and analyzing the communication status for each location.

FIG. 2 shows a configuration example of the wireless router 12 and the wireless LAN terminal 13.
In FIG. 2, the wireless router 12 includes a WAN side wireless LAN transmission / reception unit 121, a WAN side mobile phone transmission / reception unit 122, a LAN side wireless LAN transmission / reception unit 123, a control unit 124 that switches connection of a WAN side line, and a communication data amount counter 125. The position information storage unit 126 and the communication status storage unit 127 are provided.

  In addition to the wireless LAN transmission / reception unit 131 and the control unit 132, the wireless LAN terminal 13 receives and receives GPS signals from GPS satellites at regular intervals (for example, 1 second) as means for acquiring position information of the current position. A GPS signal receiving unit 133 that calculates position information of the latitude and longitude of the point and a position information storage unit 134 that stores time information and position information are provided. When position information cannot be calculated, such as when a GPS signal cannot be received, the last received latitude and longitude information is retained.

  The wireless LAN terminal 13 transmits the position information stored in the position information storage unit 134 to the wireless router 12 at regular intervals while connected after completing the connection process with the wireless router 12. As a transmission method, there is a method of using an HTTP (HyperText Transfer Protocol) GET method or a POST method. In this case, the wireless router 12 can receive position information by installing a Web server function.

  Here, the wireless LAN transmission / reception unit 131 of the wireless LAN terminal 13 includes traffic monitoring means, and the location information stored in the location information storage unit 134 is stored only when there is traffic triggered by the occurrence of traffic. It can also be transmitted to the wireless router 12 at regular intervals. In the present embodiment, the location of the wireless router 12 and the communication status may be associated with each other and transmitted to the area analysis server 14. Therefore, transmission of location information when there is no traffic is omitted, thereby saving the wireless LAN terminal 13. Electricity can be achieved, and unnecessary traffic can be avoided.

  The wireless router 12 stores the position information received from the wireless LAN terminal 13 in the position information storage unit 126 of the wireless router 12.

  The control unit 124 of the wireless router 12 registers, in the communication status storage unit 127, the WAN side line being used at regular intervals and the communication data amount transmitted and received on the WAN side line measured by the communication data amount counter 125. Here, the period registered in the communication status storage unit 127 is a registration period.

  An example of a communication status list registered in the communication status storage unit 127 is shown in FIG. Here, the registration cycle is 10 seconds. For the time, latitude, and longitude, information transmitted from the wireless LAN terminal 13 and stored in the position information storage unit 126 is used. For the WAN side use line, the line used at the time of registration is stored, and the amount of communication data transmitted / received using the WAN side line for 10 seconds is stored. If the WAN side use line is switched during the registration period, that fact is registered.

  Here, prior to communication, the wireless router 12 transmits a period of transmitting position information to the wireless router 12 to the control unit 132 of the wireless LAN terminal 13 as a period of registering the communication data amount in the communication status storage unit 127. It may be set to match (10 seconds in the above example). As described above, in order to associate the position information with the communication status and transmit them to the area analysis server 14, it is only necessary to have a one-to-one correspondence, and the update cycle of the position information and the registration cycle of the communication status are matched. Thus, the period can be optimized. Furthermore, in order to save power in the wireless LAN terminal 13, it is also possible to set the position information update cycle to an integral multiple of the communication status registration cycle, and estimate the position information between them by primary interpolation.

  The communication status registered in the communication status storage unit 127 of the wireless router 12 is transmitted as a communication status list to the area analysis server 14 connected to the network 11 at regular intervals. For example, the data is transmitted once a day in a time zone with a small amount of data in the network such as a midnight time zone. Transmission uses one of the WAN side lines, but when there is a lot of data to be transmitted, the transmission in a short time is completed by using the wireless LAN line as much as possible. When transmitting to the area analysis server 14 by mail, the wireless router 12 may be provided with a mail transmission function.

FIG. 4 shows a configuration example of the area analysis server 14.
In FIG. 4, the area analysis server 14 includes a communication unit 141, a communication status list storage unit 142, an area analysis processing unit 143, and a section information list storage unit 144. The communication unit 141 connected to the network 11 receives the communication status list sent from each wireless router 12 and registers it in the communication status list storage unit 142. The communication status list storage unit 142 has a large capacity because the communication status list is sent from each wireless router 12 at a constant cycle. The area analysis processing unit 142 reads the communication status list, creates a partition information list for analyzing the communication status for each line type, and stores it in the partition information list storage unit 144. Moreover, you may provide the display part which displays a division information list.

  Next, an operation example of the area analysis processing unit 143 will be shown. The area analysis processing unit 143 creates a section information list for each line type to be analyzed. FIG. 5 shows the concept of the section of the section information list, and FIG. 6 shows an example of the section information list that is actually processed in the area analysis processing unit 143.

  5, A, B, C,... Indicating the coordinates of the sections indicate the latitude direction, and 1, 2, 3,. The size of the section can be set according to the accuracy to be analyzed, such as a latitude / longitude unit or 50 m square. Here, a numerical value of four digits after the decimal point of latitude and longitude is used. In FIG. 6, the section information list includes the coordinates of the sections (for example, (A, 1)), the latitude and longitude indicating the position of the coordinates, and the total communication data amount that stores the total amount of communication data received from each wireless router 12. Consists of items.

  Hereinafter, an example of creating a partition information list indicating the total communication data amount of each partition for two types of cellular phones and wireless LANs as WAN side lines will be described. For example, a section information list (mobile phone) and a section information list (wireless LAN) are used. For example, when a cell phone section information list is required, only the section information list (cell phone) is created.

  The area analysis processing unit 143 acquires one communication status list from the communication status list storage unit 142, and adds the communication data amount to the total communication data amount of the partition information list for each row in the communication status list according to the following procedure. Go. First, the cellular phone and the wireless LAN are identified by the item of the WAN side use line, and it is determined whether to add the communication data amount of the row to the partition information list (mobile phone) or the partition information list (wireless LAN). The corresponding section in the section information list is searched from the latitude and longitude of the line. Then, the amount of communication data of the section is added. For example, if the WAN side use line is a mobile phone and the latitude and longitude correspond to the section (A, 3), the communication data amount of that row is the section (A, 3) of the section information list (mobile phone). It is added to the total communication data amount.

  The amount of communication data in each line in the communication status list is sequentially added to each section of the section information list (mobile phone) and the section information list (wireless LAN). Since a large number of communication status lists are stored in the communication status list storage unit 142, the same processing is sequentially performed for each list, and the communication data amount is added to the partition information list. Calculation of the amount of communication data in each section in the section information list is completed by adding the amount of communication data for all communication status lists. As a display method to the operator, the total communication data amount of the block information list is mapped on the map, and the magnitude of the numerical value is identified and displayed by color shading and symbols, so that the communication status map is communicated at a glance. An operator can recognize a place with a large amount of data.

  From this section information list, points where the communication data amount of the corresponding WAN side line is large can be known, and it is possible to consider measures such as enhancement of communication facilities. Thereafter, the communication status list is sequentially sent from each wireless router, and the accuracy can be improved by reflecting the contents in the section information list.

  Note that FTP or HTTP can also be used as a transmission protocol for the communication status list from the wireless router 12 to the area analysis server 14. In that case, those protocols are provided in the wireless router 12. Transmission to the area analysis server 14 can be performed periodically such as once a day, but can also be performed when the capacity of the communication status storage unit 127 exceeds a certain amount. .

  In addition, it is possible to perform area analysis for each cellular phone operator, and for a wireless LAN, it is also possible to perform area analysis for each public wireless LAN operator. This can be dealt with by storing the identifier of the communication carrier as an item of the WAN side use line stored in the communication status storage unit 127 of the wireless router 12 together. For identification of the communication carrier, information of a SIM card mounted on a router can be used for a mobile phone line, and ESS-ID can be used for a wireless LAN.

  In the second embodiment, the wireless router 12 requests position information from the wireless LAN terminal 13, and the wireless LAN terminal 13 transmits position information in response to the request.

  In FIG. 2, the control unit 124 of the wireless router 12 periodically requests location information from the wireless LAN terminal 13 via the LAN-side wireless LAN transmission / reception unit 123. When receiving a request for position information from the wireless router 12, the control unit 132 of the wireless LAN terminal 13 acquires the position information from the position information storage unit 134 and transmits the position information to the wireless router 12 via the wireless LAN transmission / reception unit 131.

  At this time, the control unit 124 of the wireless router 12 includes a monitoring unit for traffic passing through the WAN side wireless LAN transmission / reception unit 121 or the WAN side mobile phone transmission / reception unit 122, and when traffic is present as a trigger. However, it is also possible to request location information from the wireless LAN terminal 13. By omitting the transmission of the position information when there is no traffic, it is possible to save power in the wireless LAN terminal 13 and to avoid unnecessary traffic.

  The third embodiment is characterized in that, when a plurality of wireless LAN terminals are connected to a wireless router, the position information of the wireless LAN terminal closest to the wireless router is selected as the position information of the wireless router. For example, assume that wireless LAN terminals of a plurality of users are connected to a wireless router of one user. The radio wave reach of the wireless router is generally several tens of meters. Therefore, the positional information error between the wireless router and each wireless LAN terminal is on the order of several tens of meters. Therefore, if a wireless LAN terminal is selected at random, an error of the order of several tens of meters occurs in the station design. become. Here, since the wireless LAN terminal having the highest received power is considered to be closer to the wireless router, it is considered that the error can be reduced by selecting the position information. That is, when a wireless base station having a radius of several tens of meters with respect to the position of the wireless LAN terminal is installed, it is possible to measure the amount of traffic accommodated.

  FIG. 7 illustrates a relationship between the wireless router and the wireless LAN terminal according to the third embodiment. Here, an example in which three wireless LAN terminals 13-1 to 13-3 are connected to the wireless router 12 is shown.

  Each of the wireless LAN terminals 13-1 to 13-3 transmits the acquired position information to the wireless router 12 according to the procedure of the first embodiment. As a result, the wireless router 12 acquires position information from a plurality of wireless LAN terminals, but the wireless router 12 stores the received power of received data from each wireless LAN terminal together with the position information as a wireless LAN terminal position information list. . An example of the wireless LAN terminal location information list is shown in FIG.

  The wireless router 12 refers to the received power in the wireless LAN terminal position information list, determines that the wireless LAN terminal with the largest received power is closest to the wireless router, and uses the position information acquired from the wireless LAN terminal as a wireless The position information of the router 12 is selected and stored in the position information storage unit 126 of the wireless router 12. Thereby, the accuracy of the estimated position of the wireless router can be improved. Subsequent operations are the same as those in the first embodiment.

  The wireless LAN terminal location information list adds a row when a wireless LAN terminal is newly connected to the wireless router 12, and deletes the corresponding row when the wireless LAN terminal is disconnected. When the location information is transmitted from the wireless LAN terminal, the latitude and longitude are updated. However, if there is no update for a certain time for each wireless LAN terminal, it is determined that the location information cannot be acquired, and the field of latitude and longitude is left blank. To do.

  As in the third embodiment, the fourth embodiment is characterized in that when the positions of a plurality of wireless LAN terminals are registered in the wireless LAN terminal position information list, the average value is adopted as the position of the wireless router 12. .

  As in the example of the wireless LAN terminal position information list in FIG. 8, when position information is received from three wireless LAN terminals, it is assumed that the wireless router 12 is at the center of the three wireless LAN terminals. The accuracy of the position of the router 12 can be improved.

  The fifth embodiment is characterized in that, when a plurality of wireless LAN terminals are connected to the wireless router 12, one of them transmits position information, and the other wireless LAN terminals stop the GPS signal reception process. . For example, when a certain user possesses the wireless router 12 and a plurality of wireless LAN terminals, the positional information of the wireless LAN terminals is slightly different, and therefore the position information is acquired simultaneously from the plurality of wireless LAN terminals. There is no need.

  For example, when the wireless router 12 acquires location information every 5 seconds, if three wireless LAN terminals are connected, each wireless LAN terminal receives GPS signals every 15 seconds by performing GPS signal reception processing in order. It is only necessary to perform processing. Thereby, the power saving of the wireless LAN terminal can be performed. For example, as in the second embodiment, when each wireless LAN terminal transmits position information in response to an inquiry from the wireless router 12, the wireless router 12 acquires position information from each of the three wireless LAN terminals in order. As in the first embodiment, in the form in which the wireless LAN terminal transmits the position information to the wireless router 12 autonomously and distributedly, the wireless LAN terminals synchronize with each other and sequentially transmit the position information.

AP1, AP2 Wireless LAN base station BS Mobile phone base station 11 Network 12 Wireless router 13 Wireless LAN terminal 14 Area analysis server 121 WAN side wireless LAN transmission / reception unit 122 WAN side mobile phone transmission / reception unit 123 LAN side wireless LAN transmission / reception unit 124 Control unit 125 Communication data amount counter 126 Location information storage unit 127 Communication status storage unit 131 Wireless LAN transmission / reception unit 132 Control unit 133 GPS signal reception unit 134 Location information storage unit 141 Communication unit 142 Communication status list storage unit 143 Area analysis processing unit 144 Section information list Storage

Claims (8)

In a wireless communication system in which a wireless terminal connected to a wireless router is connected to a network via one WAN side line of a plurality of WAN side lines selected by the wireless router,
The wireless terminal includes a means for receiving GPS (Global Positioning System) signal to acquire position information, and a means for transmitting the position information to the wireless router,
The wireless router is configured to obtain a communication status including means for acquiring position information transmitted by the wireless terminal, the position information, the selected WAN side line, and a communication data amount using the WAN side line in a predetermined registration cycle. Means for registering as a communication status list at a step, and means for transmitting the communication status list to an area analysis server connected to the network using one of the plurality of WAN side lines at a predetermined cycle,
The area analysis server determines the communication data amount for each section and WAN side line according to the location information based on each communication status list transmitted from each wireless router when there are one or more wireless routers. An area analysis system comprising: a section information list creation means for creating an integrated section information list. The area analysis system according to claim 1,
The area analysis system, wherein the wireless terminal transmits the position information only during a period in which communication data exists. The area analysis system according to claim 1,
The area analysis system, wherein the wireless terminal transmits the position information at a predetermined registration period of the wireless router or an integer multiple of the predetermined registration period. The area analysis system according to claim 1,
The wireless router registers only position information acquired from a wireless terminal having the highest received power when there are a plurality of the wireless terminals. The area analysis system according to claim 1,
The wireless router registers, as position information, an average value of position information acquired from each wireless terminal when there are a plurality of the wireless terminals. The area analysis system according to claim 1,
The area analysis system characterized in that the wireless router acquires position information in order from each wireless terminal when there are a plurality of the wireless terminals. In the wireless router of the area analysis system according to claim 1,
Means for acquiring position information transmitted by a wireless terminal that receives a GPS signal and acquires position information;
Means for registering the communication information including the location information, the selected WAN side line, and the communication data amount using the WAN side line as a communication status list at a predetermined registration cycle;
A wireless router comprising: means for transmitting the communication status list to an area analysis server connected to the network using one of the plurality of WAN-side lines at a predetermined cycle. In the wireless terminal of the area analysis system according to claim 1,
Means for receiving a GPS signal and acquiring position information;
Means for transmitting the position information to the wireless router.

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