JP5012809B2 - Server, communication system, determination method and program - Google Patents

Description

  The present invention relates to the field of mobile radio communications, and more particularly to a system for identifying the position of a moving radio device.

  In recent years, the need for high-accuracy position information has increased greatly, and positioning techniques for specifying the position of a moving wireless device have been actively researched / developed, as represented by positioning using GPS satellites.

  As one of the positioning methods, there is a reference point positioning in which the position of a moving wireless device is the position of a fixed wireless device (such as a base station) that has a relationship capable of transmitting or receiving a wireless signal. This reference point positioning can be easily introduced because a normal wireless communication system can be used. For this reason, in recent years, a reference point positioning system has been introduced as one of value-added services for cellular and wireless LANs.

  Here, cellular, wireless LAN, and the like are infrastructures installed mainly for communication, and coverage of one base station seems to be widened by a trade-off between being able to communicate in a wide area and the cost required for installing the base station. Has been stationed at. On the other hand, if the coverage of this one base station is widened, the positioning accuracy naturally decreases, so that there are very few positioning services that can be provided only by reference point positioning such as cellular or wireless LAN.

  In addition, there is positioning using a general GPS satellite as a high-accuracy positioning system, but this has high positioning accuracy outdoors, but because the signal from the GPS satellite is blocked indoors, it is less than a few meters indoors. Cannot support positioning services that require positioning accuracy. For this reason, a positioning system with higher accuracy than these positioning systems was required.

  Non-patent documents 1 to 3 disclose systems that use reference point positioning with higher accuracy than these positioning methods. These are systems for positioning purposes, and infrastructure is laid for positioning. By introducing these positioning systems, it is possible to acquire highly accurate position information, and it is possible to provide a position information service such as indoors.

  In addition, in the reference point positioning, a method of installing a reader that holds a transmitter on a target whose position is to be acquired and communicates the positional information to a server on the environment side, and communication of the positional information to the server that is to acquire a position. There are two main types: a method of holding a reader and installing a transmitter on the environment side.

Ishii et al., “Proposal of Hybrid Wireless LAN Positioning System (2)”, 2004, IEICE General Conference, B-5-225. Tsuji, et al., “Tracking system using wireless transmitter”, 2003, IEICE General Conference, B-15-11. Yoneyama, et al., “Construction of indoor position detection system using Bluetooth terminal”, 2003, IEICE General Conference, B-15-9.

Here, let us consider a method of installing a reader as a target for acquiring the latter position and a transmitter on the environment side. In this method, the position is specified based on whether or not the positioning object can receive a radio signal transmitted by a transmitter installed on the environment side. In addition, having information unique to the transmitter eliminates the need for connection to the network, and therefore has the advantage that it can be introduced at a very low cost.

  However, the fact that the transmitter does not need to be connected to the network means that the transmitter is moved to another location and used, or a transmitter that transmits the same signal as the signal transmitted by the transmitter is forged. However, the system cannot determine whether the transmitter is moving or forged, and can provide location-specific location information services even if the transmitter is not in the proper position.

  As a specific example, a description will be given using position-dependent content distribution, which is a service in a commercial facility. For example, consider a case where a commercial facility provides a service for distributing coupons when a customer comes to a certain location of a store for the purpose of visiting the customer. In order for a commercial facility (store side) to provide this service, a mobile phone that has received a signal from the transmitter by installing a transmitter on the environment side and using the mobile phone of the customer whose location is to be acquired Suppose that the telephone has built a service that receives coupon distribution from the server.

  However, since the transmitter installed on the environment side is not directly connected to the network, the transmitter is moved or the transmitter that transmits the exact same information as the transmitter transmits is counterfeited and physically sent from the store. Even if a transmitter is installed at a location far away (for example, the store is Tokyo and the installation location is Okinawa), the server cannot determine whether the transmitter is moving or counterfeit. For this reason, even if a customer does not visit a store, it becomes possible to receive coupon distribution outside the store as a result, which may lead to loss of commercial facilities.

  There is currently no technology for assuring the reliability of position information for the above problems.

[Object of invention]
The present invention has been made in view of the above circumstances, and when a positioning target receives position information from a transmitter, whether the position information is information from a correct transmitter installed at a correct position. By checking whether or not and improving the reliability of location information, etc., it is aimed to prevent location of the transmitter and prevent counterfeiting and to provide location information services that match the true location of the transmitter .

  In the present invention, as means for solving such a problem, the reliability of information of a transmitter that transmits position information is enhanced by using information associated with at least one different position.

  The server of the present invention is configured such that the first unique information, which is information unique to the transmitter received from the transmitter from the terminal connected via the base station, and the first unique information are correctly located. Receiving means for receiving second specific information as a criterion for determining whether or not the information is from the transmitter, and information specific to the installation position of the transmitter based on the received first specific information. Comparing the third unique information deriving means for deriving certain third unique information, the second unique information or information calculated from the second unique information, and the derived third unique information, Comparison judging means for judging whether or not the received first unique information is information from a correct transmitter installed at a correct position.

  In addition, the server of the present invention includes a receiving means for receiving first unique information that is information unique to a transmitter received from a transmitter from a terminal connected via a base station, and the received first first Acquire third unique information deriving means for deriving third unique information, which is information unique to the installation position of the transmitter, based on the unique information, and second unique information, which is information unique to the transmitter A correct transmitter in which the received second unique information is compared with the derived third unique information, and the received first unique information is installed at a correct position. And a comparison / determination means for determining whether or not the information is from the above.

  The communication system of the present invention includes a transmitter that transmits first unique information that is unique to the transmitter, a terminal, a base station that mediates communication between the terminal and the server, and a terminal via the base station. A communication system comprising a server that communicates with the server, wherein the server is information from the correct transmitter in which the first unique information received from the transmitter and the first unique information are installed at the correct positions Receiving means for receiving second unique information as a criterion for determination from the terminal, and third unique information which is information unique to the installation position of the transmitter based on the received first unique information 3rd unique information deriving means for deriving the second unique information or information calculated from the second unique information and the derived third unique information and comparing the received first unique information The right transmitter with the information in the right place And having a comparative determination unit for determining whether a et of information.

  According to the determination method of the present invention, the first unique information, which is information unique to the transmitter received from the transmitter from the terminal connected via the base station, and the first unique information are installed at the correct positions. A receiving step for receiving second specific information as a criterion for determining whether or not the information is from a correct transmitter, and information unique to the installation position of the transmitter based on the received first specific information Comparing the third unique information derivation step for deriving the third unique information, the second unique information or information calculated from the second unique information, and the derived third unique information, A comparison and determination step of determining whether or not the received first unique information is information from a correct transmitter installed at a correct position.

  The determination method of the present invention includes a receiving step of receiving first unique information that is information unique to a transmitter received from a transmitter from a terminal connected via a base station, and the received first A third unique information deriving step for deriving third unique information that is unique to the installation position of the transmitter based on the unique information of the transmitter, and second unique information that is unique to the transmitter. The second specific information acquisition step to be acquired is compared with the acquired second specific information and the derived third specific information, and the correct transmission in which the received first specific information is installed at the correct position A comparison and determination step of determining whether or not the information is from the machine.

  According to the program of the present invention, the first unique information which is information unique to the transmitter received from the transmitter from the terminal connected via the base station and the first unique information are correctly installed at the correct positions. A receiving process for receiving second unique information as a criterion for determining whether or not the information is from a transmitter, and information unique to the installation position of the transmitter based on the received first unique information. Comparing the third unique information derivation process for deriving certain third unique information, the second unique information or information calculated from the second unique information, and the derived third unique information, A comparison judgment process for judging whether or not the received first unique information is information from a correct transmitter installed at a correct position is executed by the computer.

  Conventionally, if a transmitter is stolen or a transmitter that transmits the same location information as the location information from the transmitter is duplicated, there is a possibility that the location information will be transmitted as the same location anywhere in the world For this reason, there is a problem of whether the position information in the service corresponding to the position of the transmitter is information from a correct transmitter installed at the correct position. In the present invention, the position information or the like is correct by using the second unique information that is a criterion for determining whether or not the position information received from the transmitter is information from a correct transmitter installed at the correct position. Since it is clear whether or not the information is from a correct transmitter installed in, a service according to the correct location can be provided.

System configuration diagram assumed by the present invention Block diagram of the server in the first embodiment Processing flow of the first embodiment Processing flow of Example 1 Example of table held by storage unit of server in embodiment 1 Processing flow of Example 2 Example of table held by storage unit of server in embodiment 2 Example of table held by storage unit of server in embodiment 2 Example of table held by storage unit of server in embodiment 2 Processing flow of Example 3 Processing flow of Example 4 Processing flow of embodiment 5 Example of table held in storage unit of server in embodiment 5 Block diagram of the server in the second embodiment Processing flow of the second embodiment Processing flow of embodiment 6 Processing flow of Example 7

Explanation of symbols

1001-1003 Transmitter 1011-1013 Terminal 1021-1023 Area that can receive unique information from transmitter 1001-1003 1031 Wireless base station 1032 Area that can communicate with wireless base station 1041 Network 1042 Server

[First Embodiment]
A first embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a system configuration. The system configuration includes transmitters 1001 to 1003 for transmitting location information, mobile terminals 1011 to 1013, receivable areas 1021 to 1023 for location information transmitted by the transmitter, a wireless base station 1031, a wireless base station communicable area 1032, It consists of a network 1041 and a server 1042. The transmitters 1001 to 1003 periodically transmit location information to the reception areas 1021 to 1023. When the mobile terminals 1011 to 1013 enter the reception areas 1021 to 1023, the location information from the transmitter can be received. .

  FIG. 2 is a block diagram showing the configuration of the server 1042. The server 1042 includes a receiving unit 10, a third unique information deriving unit 20, a comparison determining unit 30, and a storage unit 40 and a second unique information converting unit 50.

  The third unique information deriving unit 20 includes a receiving unit 10 that receives a signal (position information, second unique information, etc.) transmitted from the wireless terminal via the network 1041 and the wireless base station 1031, and the received position The third unique information (information unique to the installation location of the transmitter) is derived from the information.

  The comparison / determination unit 30 compares the third unique information with the second unique information, and determines whether the received position information is information from a correct transmitter installed at the correct position. To do.

  The storage unit 40 stores a conversion table for deriving the third unique information from the position information.

  The second unique information conversion unit 50 receives the received second unique information (information used as a criterion for determining whether or not the transmitter location information or the like is information from a correct transmitter installed at a correct position). If the format cannot be compared with the third unique information, the second unique information is converted into a format that can be compared with the third unique information.

  If the second unique information can be compared with the third unique information in the form as it is, the second unique information conversion unit 50 is not necessary.

  Next, using the flowchart of FIG. 3, the reliability is improved by confirming whether the location information from the transmitter is the information from the correct transmitter installed at the correct position. A method will be described.

  As described above, the transmitters 1001 to 1003 periodically transmit location information to the reception areas 1021 to 1023. When the mobile terminals 1011 to 1013 enter the reception areas 1021 to 1023, the location information from the transmitters can be received. It becomes. When receiving the location information from the transmitters 1001 to 1003, the mobile terminals 1011 to 1013 are correct transmitters in which the location information of the transmitters 1001 to 1003 is installed in the correct position in addition to the location information from the transmitters 1001 to 1003. The second specific information, which is information used as a criterion for determining whether or not the information is from the first information, is also acquired (step 1101).

  Here, as the format of the position information from the transmitters 1001 to 1003, ID, coordinates, latitude and longitude, logical position information (vegetable section, meat section, etc.) can be considered. The mobile terminals 1011 to 1013 notify the location information and the second unique information from the transmitters 1001 to 1003 to the server 1042 through the radio base station 1031 and the network 1041 (step 1102).

  The server 1042 derives third unique information specific to the location where the transmitters 1001 to 1003 are installed from the notified location information from the transmitters 1011 to 1013 (step 1106), and the notified second information By comparing the unique information with the derived third unique information, it is determined whether or not the notified positional information is information from a correct transmitter installed at the correct position (step 1103). ). If it is determined that the position information is from a transmitter at an unauthorized position, processing for unauthorized use of the service is performed (step 1104), and it is determined that the position information is from a transmitter at an authorized position. If so, processing for regular use of the service is performed (step 1105).

  Here, since the second unique information is used as a criterion for determining whether or not the position information of the transmitter is information from a correct transmitter installed at a correct position, at least the transmitter It is desirable that the information is less forgery than the position information from and reliable.

  In addition, with regard to location spoofing by forgery in software in the mobile terminals 1011 to 1013, a system that cannot be counterfeited can be constructed by applying general authentication between the server 1042 and the software in the mobile terminals 1011 to 1013. Detailed description will not be given here. As a general authentication between the server 1042 and the software in the mobile terminals 1011 to 1013, a Simple & Secure (SAS) authentication method or the like may be used.

  In addition, forgery in the wireless network 1032 and the network 1041 can be constructed by using a general encryption protocol between the server 1042 and the mobile terminals 1011 to 1013, so that a system that cannot be forged can be constructed. A detailed description is not given here. As a general encryption protocol between the server 1042 and the mobile terminals 1011 to 1013, Secure Socket Layer (SSL) or the like may be used.

  Further, in the present embodiment, a mode is described in which a function for deriving the third specific information from the position information from the transmitters 1001 to 1003 is implemented in the server 1042, but this function is included in the mobile terminals 1011 to 1013. May be implemented.

  In the present embodiment, the server 1042 is provided with a function for determining whether the location information from the transmitters 1001 to 1003 is information from a correct transmitter installed at a correct position. However, this function may also be implemented in the mobile terminals 1011 to 1013.

  Hereinafter, five examples of the present embodiment will be described with reference to the drawings.

[Example 1]
In the first embodiment of the present invention, an example in which a basic service set identifier (BSSID) of a wireless LAN base station is used as the second unique information and the third unique information will be described.

  In this embodiment, a wireless LAN base station is used as the wireless base station 1031, an infrared transmitter is used as the transmitters 1001 to 1003, and a notebook PC incorporating a wireless LAN interface and an infrared interface is used as the mobile terminals 1011 to 1013. Think.

  The operation will be described with reference to FIG.

  First, the notebook PC receives the position information periodically transmitted from the infrared transmitter and the BSSID of the wireless LAN base station periodically transmitted from the wireless LAN base station (step 2001). The received location information and BSSID are notified to the server using the wireless LAN (step 2002).

  In the present embodiment, the storage unit 40 of the server 1042 previously registers a correspondence table between position information (for example, transmitter ID) of each transmitter and BSSID of the wireless LAN base station that should be obtainable at that position. (See FIG. 5).

  Based on the notified location information, the server 1042 can be acquired at a location where an infrared transmitter that transmits the notified location information is installed using a database held in the storage unit 40 of the server 1042. A BSSID that should be present is derived in the unique information deriving unit 2 (step 2006). Then, the BSSID (second unique information) notified from the notebook PC and the BSSID (third unique information) derived in the server are compared by the comparison / determination unit 30, and the positional information notified depending on whether or not they match. It is determined whether or not the position information is from a regular infrared transmitter (step 2003).

  If, as a result of the comparison, the notified BSSID (second unique information) does not match the derived BSSID (third unique information), the notified position information is position information from an unauthorized infrared transmitter. In response to the unauthorized use of the service (step 2004), if the notified BSSID (second unique information) matches the derived BSSID (third unique information), the process is notified. It is determined that the location information is location information from a regular infrared transmitter, and processing for regular use of the service is performed (step 2005).

  FIG. 5 shows an example of the correspondence table stored in the server.

  The example of this table is an example in which the correspondence relationship between the location information from the transmitter (here, transmitter ID) and the BSSID that can be acquired at the location is stored.

  In addition, since the BSSID of the wireless LAN base station to be notified is unique information used as a criterion for authenticity determination as to whether or not the position information is information from a correct transmitter installed at the correct position, an infrared transmitter It is desirable to have higher reliability than position information from In this respect, since the wireless LAN base station can communicate bidirectionally with a server and other management servers via the backbone network, it is easy to monitor from the server, so it is difficult to misrepresent BSSID and reliability. It can be said that securing is easy.

  In general, in order to improve the reliability of the BSSID of the wireless LAN base station, it is confirmed that the BSSID notification is from the authorized wireless LAN base station, and whether the authorized wireless LAN base station is in the authorized position. It is necessary to confirm. Hereinafter, an example of a method generally used for improving the reliability of BSSID will be described.

  As an example of a method for confirming that the BSSID notification is from a regular wireless LAN base station, the BSSID that is the same as the BSSID confirmed by the notebook PC to the server in step 2001 after confirming that the wireless LAN base station is authorized There is a method for confirming connection to a regular wireless LAN base station having. In other words, if the BSSID notified to the server by the notebook PC and the BSSID of the wireless LAN base station to which the notebook PC is connected are the same, the BSSID can be said to be that of a regular wireless LAN base station. As an example of a method for confirming that the wireless LAN base station is legitimate, there is a method for performing authentication with a server or another management server. This method has a mechanism for performing authentication between the server or another management server and the wireless LAN base station. If the authentication is correctly processed, the wireless LAN base station is authorized. It is a method that can be confirmed. At this time, as the authentication method, for example, known shared key authentication or public key authentication can be used.

  Next, four methods will be briefly described as examples of a method for confirming whether or not the regular wireless LAN base station is in a regular position. (1) Check whether there is any change in the network configuration between the server and the wireless LAN base station. In this method, for example, the server (or other management server) holds the network configuration between the server and the wireless LAN base station, and periodically checks the configuration based on the configuration information. When the network configuration held by the server is different from the network configuration periodically checked, it can be determined that the base station is moved and is not in the proper position. (2) Check if there is no contradiction in the combination of other wireless LAN base stations with which the notebook PC can communicate. (3) There is no contradiction in the combination of radio field strengths of signals received by the notebook PC from the other wireless LAN base station. (4) Confirming whether there is no contradiction in the combination of radio wave propagation times with each wireless LAN base station measured by the wireless LAN base station. In the methods (2) to (4) above, the “wireless LAN base station combination list”, “radio wave intensity combination list”, and “radio wave propagation time combination list” when the server is in the correct position of the wireless LAN base station are displayed. It is determined in advance that there is a possibility that the wireless LAN base station has been moved when a list different from the combination is acquired. The network administrator who has received the primary judgment goes to search for the corresponding base station based on the location of the wireless LAN base station stored on the server or paper, and confirms whether it has been finally moved. It can be determined whether or not the LAN base station is in a regular position.

  The above is an example of a method generally performed for improving the reliability of BSSID.

  In the first embodiment described above, the BSSID of the wireless LAN base station connected as the second unique information and the third unique information is used. However, the BSSID of the wireless LAN base station to which the notebook PC can be connected is shown. A combination, a combination of signal strengths of signals from a wireless LAN base station to which a notebook PC can be connected, or the like may be used as the specific information.

  In the present embodiment, an example in which a wireless LAN base station is used as a wireless base station is shown, but a mobile phone base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the wireless LAN base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone). The wireless LAN transmitter is assumed to be a device that transmits only position information, such as an infrared transmitter.

  In addition, when using the signal of another radio transmitter, the mobile terminal needs to be equipped with a radio interface capable of receiving a medium transmitted by the radio transmitter to be used.

  Further, although an example using a notebook PC as a mobile terminal has been shown, a PDA, a business dedicated terminal, a mobile phone, or the like may be used.

  In this embodiment, the transmitter and the radio base station used for communication are combined, and the communicable area of the radio base station may be wider than the area where the position information can be received from the transmitter. Under such circumstances, it is difficult to detect fraud using a stolen or counterfeit transmitter within the communicable area of the same radio base station.

  However, by utilizing this embodiment, the range in which fraud was possible can be limited from the entire world to the communicable area of the same radio base station, and the reliability of position information can be improved.

  As described above, in the first embodiment, the BSSID of the wireless LAN base station is used for both the second unique information and the third unique information. Then, when the derived BSSID and the notified BSSID are the same, it is determined that the transmitter is in a regular position (no fraud), and processing for regular use of the service is performed.

[Example 2]
In the second embodiment of the present invention, an example in which the time of a wireless LAN signal is used as the second unique information and coordinates are used as the third unique information will be described.

  In this embodiment, a wireless LAN base station is used as the wireless base station 1031, an infrared transmitter is used as the transmitters 1001 to 1003, and a notebook PC incorporating a wireless LAN interface and an infrared interface is used as the mobile terminals 1011 to 1013. Think.

  The operation will be described with reference to FIG.

  First, the notebook PC acquires the position information transmitted from the infrared transmitter and the time of the wireless LAN signal (step 3001). Here, the wireless LAN signal time includes the radio wave propagation time between each wireless LAN base station and the notebook PC, the round-trip radio wave propagation time between each wireless LAN base station and the notebook PC, and the signal from the notebook PC. At least one of the time when it arrives at the base station and the time when the signal from each wireless LAN base station arrives at the notebook PC is used.

  Next, the notebook PCs 1011 to 1013 notify the server 1042 of the positional information received from the infrared transmitters 1001 to 1003 and the time of the signal acquired from the wireless LAN through the wireless LAN network (step 3002).

  In the present embodiment, the storage unit 40 of the server 1042 is registered in advance with a correspondence table of position information (for example, transmitter ID) of each transmitter and coordinate information corresponding to the position (see FIG. 7).

  Then, the third unique information deriving unit 20 of the server 1042 has a position where an infrared transmitter that transmits using the correspondence table stored in the storage unit 40 of the server 1042 based on the notified position information is installed. (Coordinates) are derived (step 3007).

  The second unique information conversion unit 50 of the server 1042 calculates the position (coordinates) using the notified time of the wireless LAN signal (step 3003). Here, the calculation of the position of the notebook PC using the signal time is generally used in GPS positioning or wireless LAN positioning by storing the positions of the wireless LAN base stations 1001 to 1003 in the storage unit 40 of the server 1042. This can be done using the trilateration survey used in

  Specific examples of the positioning method include the following. Signal time is transmitted from the notebook PC to the server according to a predetermined order of wireless LAN base stations. The server that receives the time of each signal sends the signal times in a predetermined order, so that it can know which wireless LAN base station the time of each signal sent is. . Next, the server obtains the distance from each wireless LAN base station to the notebook PC from the time of each received signal, and writes a circle having the radius from each wireless LAN base station. Then, these circles theoretically intersect at one point, and that point becomes the position of the notebook PC.

  When the position of the notebook PC is obtained by the above method, three signal times are sufficient.

  In addition, when the number of wireless LAN base stations increases, it may be possible to send the BSSID of the corresponding wireless LAN base station together when the notebook PC sends the signal time to the server. When the number of wireless LAN base stations increases, even if the time of signals for all wireless LAN base stations is sent from the notebook PC to the server and positioning is performed using all the time information of these signals, the positioning accuracy is high. It is not limited to a dramatic improvement, but it may take a long time. In such a case, the time of the received signal is sent to the server together with the necessary number of signal times and the BSSID of the corresponding wireless LAN base station. This is because the position of the notebook PC can be measured.

  In addition, when the signal time is transmitted from the notebook PC to the server in a predetermined order, the wireless LAN base station that has failed to measure the signal time in order not to upset the reception order in the server. As for the signal time, some information indicating measurement failure must be sent to the server. On the other hand, if the BSSID of the wireless LAN base station corresponding to the time of the signal is transmitted, the server does not transmit the information about the wireless LAN base station that has failed to be measured. It can be understood by referring to the BSSID received together with which wireless LAN base station the time corresponds. Returning to the description of FIG. The comparison / determination unit 30 of the server 1042 has a constant position (coordinates) calculated from the time of the wireless LAN signal by the second unique information conversion unit 50 and a position (coordinates) derived by the third unique information deriving unit 20. It is determined whether or not the notified location information is legitimate depending on whether or not the relationship is satisfied (step 3004). If it is determined that the location information is from an unauthorized infrared transmitter, the service is illegal. A use process is performed (step 3005), and if it is determined that the position information is from a legitimate infrared transmitter, a service regular use process is performed (step 3006).

  Here, as an example of a means for determining whether or not the calculated position (coordinates) and the derived position (coordinates) satisfy a certain relationship, the calculated position (coordinates) and the derived position (coordinates) If the distance is within a certain distance, it is determined that the position information is from a regular infrared transmitter, and if it is more than a certain distance, it is determined that the position information is from an unauthorized infrared transmitter.

  Here, the fixed distance may be given a fixed value in advance, or positioning accuracy calculated by triangulation or the like may be used.

  Further, as another example of the means for determining whether or not the calculated position (coordinates) and the derived position (coordinates) satisfy a certain relationship, the server uses the derived position (coordinates) in the example of FIG. A table in which the range information of the existing coordinates in each transmitter ID is described is stored in the storage unit 40 of the server 1042, and the position is determined by whether or not the calculated position (coordinates) falls within the derived position (coordinates) range. There is also a means for judging whether or not the information is information from a correct transmitter installed at a correct position.

  Further, when the position information that can be acquired from the infrared transmitter is originally a coordinate, a means for deriving the position (coordinate) is not necessary, and the position (coordinate) information itself acquired from the infrared transmitter can be used. In this case, the server 1042 does not need to hold the tables as shown in FIGS.

  Also, in the second embodiment, as described above, when the BSSID of the wireless LAN base station 1031 is used, the BSSID of the wireless LAN base station 1031 to be used is more than the position information from the infrared transmitters 1001 to 1003. High reliability is desirable. The wireless LAN base station 1031 has a backbone network 1041 and is capable of bidirectional communication with the server 1042 and other management servers.

  In order to improve the reliability of the BSSID of the wireless LAN base station 1031, it is confirmed that the BSSID notification is from the authorized wireless LAN base station, and whether the authorized wireless LAN base station is in the authorized position. Etc. are necessary. Since this point is the same as that of the first embodiment, it will be briefly described below.

  As an example of a method for confirming that the BSSID notification is from a regular wireless LAN base station, it is the same as the BSSID confirmed by the notebook PC to the server 1042 after confirming that the wireless LAN base station is legitimate. There is a method for confirming connection to a regular wireless LAN base station having a BSSID. As an example of a method for confirming that the wireless LAN base station is legitimate, there is a method for performing authentication with a server or another management server.

  As an example of a method for confirming whether a regular wireless LAN base station is in a regular position, another wireless capable of communicating with a notebook PC that confirms whether there is a change in the network configuration between the server and the wireless LAN base station Measured by the wireless LAN base station to check if there is no contradiction in the combination of LAN base stations, and to check if there is no contradiction in the combination of the radio field strength of the signals received by the notebook PC from other wireless LAN base stations For example, there is a method of confirming whether there is no contradiction in the combination of radio wave propagation times with each wireless LAN base station.

  In this embodiment, an example in which a wireless LAN base station is used as a wireless base station is shown, but a mobile phone base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the wireless LAN base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  Moreover, although the example using the time of the signal of the wireless LAN as the second specific information is shown, the time of the signal of the mobile phone or the time of the signal of the GPS satellite may be used. In addition, when using a GPS satellite signal, the mobile terminal needs to be equipped with a GPS interface.

  Further, although an example using a notebook PC as a mobile terminal has been shown, a PDA, a business dedicated terminal, a mobile phone, or the like may be used.

  Moreover, although the example which uses a coordinate for 3rd intrinsic | native information was shown in a present Example, the latitude longitude may be sufficient.

  In the present embodiment, an example is shown in which coordinates are used for the third unique information. However, the same wireless LAN signal time as the second unique information may be used. When the wireless LAN signal time is used as the third unique information, the step (step 3003) of calculating the position (coordinates) from the wireless LAN signal time notified by the server in FIG. 6 is omitted. Is done.

  In addition, as an example of the correspondence table held in the server at this time, there is a table in which the arrival time of radio waves from each base station in each transmitter ID as in the example of FIG. 9 is described.

  As described above, in the second embodiment, the wireless LAN signal time is used as the second unique information, and the position coordinate of the transmitter is used as the third unique information. Then, when the position coordinate of the derived transmitter and the position coordinate of the transmitter calculated from the notified signal time are in a certain relationship, it is determined that the transmitter is in a normal position (no fraud). And processing for regular use of the service.

[Example 3]
In the third embodiment of the present invention, as in the second embodiment, the wireless LAN signal time is used as the second unique information, and the position (coordinate) is used as the third unique information. ) Is different from the second embodiment.

  In this embodiment, a wireless LAN base station is used as the wireless base station 1031, an infrared transmitter is used as the transmitters 1001 to 1003, and a notebook PC incorporating a wireless LAN interface and an infrared interface is used as the mobile terminals 1011 to 1013. Think.

  The operation will be described with reference to FIG.

  First, the notebook PC acquires position information (transmitter ID, etc.) transmitted from an infrared transmitter and times of signals of a plurality of wireless LANs (step 4001). Here, the wireless LAN signal time includes the radio wave propagation time between each wireless LAN base station and the notebook PC, the round-trip radio wave propagation time between each wireless LAN base station and the notebook PC, and the signal from the notebook PC. At least one of the time when it arrives at the base station and the time when the signal from each wireless LAN base station arrives at the notebook PC is used.

  Next, the position (coordinates) is calculated using the time of the signal acquired by the notebook PC from the wireless LAN base station (step 4002). Here, in order to calculate the position using the time of the signal, the position of the wireless LAN base station is held in the notebook PC, and a commonly used trilateral survey such as GPS positioning or wireless LAN positioning is performed. I will do it.

  Then, the notebook PC notifies the server 1042 of the position information (transmitter ID and the like) received from the infrared transmitter and the calculated position (coordinates) through the wireless LAN network (step 4003).

  The server 1042 derives the position (coordinates) where the infrared transmitter to be transmitted is installed from the correspondence table stored in the storage unit 40 of the server 1042 based on the notified position information (transmitter ID and the like). (Step 4007).

  In addition, the comparison determination unit 30 of the server 1042 determines whether the position information notified of whether the calculated position (coordinates) and the derived position (coordinates) satisfy a certain relationship is normal. If it is determined that the position information is from an unauthorized infrared transmitter (step 4004), the unauthorized use of the service is processed (step 4005), and it is determined that the position information is from a legitimate infrared transmitter. If so, regular use processing of the service is performed (step 4006).

  Here, as an example of means for determining whether the calculated position (coordinate) and the derived position (coordinate) satisfy a certain relationship, the calculated position (coordinate) and the derived position (coordinate) If it is within a certain distance, it is determined that the position information is from a regular infrared transmitter, and if it is more than a certain distance, it is determined that the position information is from an unauthorized infrared transmitter. Further, the server 1042 holds a correspondence table in which coordinate range information for each transmitter ID is described as the derived position (coordinates) as in the example of FIG. 8, and the calculated position (coordinates) is derived. There is also means for determining whether the position information or the like is information from a correct transmitter installed at a correct position depending on whether or not it falls within the range of (coordinates).

  Further, when the position information that can be acquired from the infrared transmitter is a coordinate, the means for deriving the position (coordinate) is not necessary, and the position (coordinate) information itself acquired from the infrared transmitter can be used. In this case, the server 1042 does not have to hold a table as shown in FIG.

  Further, it is desirable that the time of the wireless LAN signal used is more reliable than the position information from the infrared transmitter.

  In this embodiment, an example in which a wireless LAN base station is used as a wireless base station is shown, but a mobile phone base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the wireless LAN base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  In addition, although an example using information associated with a position other than position information from the transmitter, that is, the time of the signal of the wireless LAN as the second specific information has been shown, the time of the signal of the mobile phone, the signal of the GPS satellite It may be time. In addition, when using a GPS satellite signal, the mobile terminal needs to be equipped with a GPS interface.

  Further, although an example using a notebook PC as a mobile terminal has been shown, a PDA, a business dedicated terminal, a mobile phone, or the like may be used.

  In addition, the position (coordinates) is notified from the notebook PC to the server, but the latitude and longitude may be used.

  As described above, the third embodiment is similar to the second embodiment in that the wireless LAN signal time is used as the second unique information and the transmitter position coordinates are used as the third unique information. The difference from the second embodiment is that the notebook PC (terminal) performs the process of calculating the position coordinates from the time of the wireless LAN signal, which is the second unique information. Therefore, the block diagram of the server in the third embodiment is obtained by deleting the second unique information conversion unit from FIG.

[Example 4]
In the fourth embodiment of the present invention, an example in which a photograph is used as the second unique information and a feature is used as the third unique information will be described.

  The configuration of the present embodiment considers a mobile phone base station as the radio base station 1031, an infrared transmitter as the transmitters 1001 to 1003, and a mobile phone incorporating an infrared interface and a camera as the mobile terminals 1011 to 1013.

  The operation will be described with reference to FIG.

  First, take a picture of a feature that can be located with a mobile phone camera. In addition, position information periodically transmitted from the infrared transmitter is received (step 5001).

  Here, the features whose position can be specified include mountains such as Mt. Fuji, lakes, rivers, buildings, bridges, roads, road signs, and telephone poles. Then, the received position information and photograph are notified to the server 1042 using the cellular phone network (step 5002). The second unique information conversion unit 50 of the server 1042 extracts a feature whose position can be specified from the notified photograph (step 5003).

  Here, it is conceivable to use general image pattern matching or the like as means for extracting a feature whose position can be specified from a photograph. Then, the third unique information deriving unit 20 of the server 1042 is based on the notified position information, and is the position where the infrared transmitter to be transmitted is installed from the correspondence table stored in the storage unit 40 of the server 1042. A photographable feature is derived (step 5007).

  Thereafter, the comparison / determination unit 30 of the server 1042 determines whether or not the notified position information is valid based on whether or not the feature extracted from the photograph matches the feature derived from the position information (step 5004). ) If it is determined that the position information is from an unauthorized infrared transmitter, the service is illegally used (step 5005). If it is determined that the position information is from a legitimate infrared transmitter, Then, processing for regular use of the service is performed (step 5006).

  In this embodiment, an example in which a mobile phone base station is used as a wireless base station is shown, but a wireless LAN base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, radio transmitters other than the radio | wireless for mobile phones used by communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving radio transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  Further, although an example using a mobile phone as a mobile terminal has been shown, a notebook PC, a PDA, a business dedicated terminal, a digital camera or the like may be used.

  In the present embodiment, an example in which a characteristic object is used as the third unique information has been described. However, a photograph may be used. When a photograph is used as the third unique information, the step of extracting a feature whose position can be specified from the notified photograph in FIG. 11 (step 5003) can be omitted. In this case, the comparison / determination unit 30 compares the photographs.

  At this time, it is assumed that the correspondence table stored in the server 1042 holds a photograph. And for authenticity determination of whether the notified location information is information from a correct transmitter installed at the correct location, general pattern matching between the notified photo and the derived photo, etc. Can be considered.

  As described above, in the fourth embodiment, a photograph is used as the second unique information, and a feature is used as the third unique information. Then, if the feature that can identify the position of the derived transmitter matches the feature that can identify the position of the transmitter extracted from the notified photograph, the transmitter is in the correct position (incorrect And process for regular use of the service.

[Example 5]
In the fifth embodiment of the present invention, an example will be described in which time is used as the second unique information, and store hours are used as the third unique information.

  Here, if a store is considered as a service providing place as an example of this time, depending on the store, the business hours may be limited, and a situation may occur in which the store cannot be located depending on the time. This example is an example using information on a place where entry / exit is associated with this time.

  The configuration of the present embodiment considers a mobile phone base station as the radio base station 1031, an infrared transmitter as the transmitters 1001 to 1003, and a mobile phone incorporating an infrared interface as the mobile terminals 1011 to 1013.

  The operation will be described with reference to FIG.

  First, the mobile phone receives position information periodically transmitted from the infrared transmitter and acquires the time when the position information is received (step 6001). Here, the cellular phone may have a time acquisition function by GPS, a current time inquiry function to the server, and the like as a function of time synchronization.

  Then, the received position information and time are notified to the server 1042 using the cellular phone network (step 6002). Thereafter, the third unique information deriving unit 20 of the server 1042 determines the sales of the store where the infrared transmitter to be transmitted is installed from the correspondence table stored in the storage unit 40 of the server 1042 based on the notified position information. Time is derived (step 6005).

  Thereafter, the comparison / determination unit 30 of the server 1042 is notified of whether or not the notified time and the derived business hours have a certain relationship (whether or not the notified time is within the derived business hours). It is determined whether the information is legitimate (step 6003). If it is determined that the information is location information from an unauthorized infrared transmitter, the service is illegally used (step 6004). If it is determined that the position information is from the machine, the service is used for regular use (step 6005).

  Here, as an example of the format of the correspondence table held in the storage unit 40 of the server 1042, there is a format as shown in FIG.

  In this embodiment, an example in which a mobile phone base station is used as a wireless base station is shown, but a wireless LAN base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the mobile telephone base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  Moreover, although the example which used the mobile telephone as a mobile terminal was shown, a notebook PC, PDA, and a business-use terminal may be sufficient.

  As described above, in the fifth embodiment, the time when the transmitter position information is acquired as the second unique information, and the store business hours are used as the third unique information. Then, when the time when the notified location information is acquired is within the business hours of the derived store, it is determined that the transmitter is in a regular position (no fraud), and processing for regular use of the service is performed. In the first to fifth embodiments described above, in order to increase the reliability of the position information from the transmitter, the second unique information and the third unique information include a base station ID such as a BSSID and a wireless LAN. Times such as signals and GPS signals, photographs of Mt. Fuji, etc. are used alone, but a plurality of these may be used in combination.

[Second Embodiment]
Hereinafter, a second embodiment different from the first embodiment will be described with reference to the drawings.

  The system configuration is as shown in FIG. 1 as in the first embodiment. The system configuration includes transmitters 1001 to 1003 for transmitting location information, mobile terminals 1011 to 1013, receivable areas 1021 to 1023 for location information transmitted by the transmitter, a wireless base station 1031, a wireless base station communicable area 1032, It consists of a network 1041 and a server 1042. The transmitters 1001 to 1003 periodically transmit location information to the reception areas 1021 to 1023. When the mobile terminals 1011 to 1013 enter the reception areas 1021 to 1023, the location information from the transmitter can be received. .

  FIG. 14 shows a block diagram of the server. The server 1042 includes a receiving unit 10 that receives signals (position information and the like) transmitted from the wireless terminals 1011 to 1013 via the network 1041 and the wireless base station 1031, and third unique information (transmission) from the received position information. The third unique information deriving unit 20 for deriving information unique to the installation location of the machine, and whether the second unique information (position information of the transmitter, etc. is information from a correct transmitter installed at the correct position) The second unique information acquisition unit 60 for acquiring the information for determining whether the authenticity is true or not, the third unique information is compared with the second unique information, and the received position information is set in the correct position. The comparison / determination unit 30 determines whether or not the information is from the correct transmitter, and the storage unit 40 stores a conversion table or the like for deriving third unique information.

  Next, the operation of the second embodiment will be described using the flowchart of FIG.

  First, the transmitters 1001 to 1003 periodically transmit location information to the reception areas 1021 to 1023, and the mobile terminals 1011 to 1013 enter the reception areas 1021 to 1023 to receive location information from the transmitters ( Step 1401). Here, the format of the position information from the transmitter may be transmitter ID, coordinates, latitude / longitude, logical position information (vegetable section, meat section, etc.). The position information from this transmitter is notified to the server 1042 through the radio base station 1031 and the network 1041 (step 1402).

  Then, the second unique information acquisition unit 60 of the server 1042 acquires the second unique information (step 1403).

  Thereafter, the third unique information deriving unit 30 of the server 1042 derives the third unique information specific to the position where the transmitter is installed from the notified position information from the transmitter (step 1407) and obtains it. Whether or not the positional information notified by the comparison determination unit 30 is information from a correct transmitter installed at a correct position by comparing the second specific information and the derived third specific information If it is determined that the location information is from an unauthorized transmitter (step 1404), processing for unauthorized use of the service is performed (step 1405), and the location information is from a legitimate transmitter. If it is determined, processing for regular use of the service is performed (step 1406).

  Here, with regard to forgery by counterfeiting in the software in the mobile terminals 1011 to 1013, a system that cannot be counterfeited can be constructed by applying general authentication between the server 1042 and the software in the mobile terminals 1011 to 1013. Detailed description will not be given here. As a general authentication between the server 1042 and the software in the mobile terminals 1011 to 1013, a Simple & Secure (SAS) authentication method or the like may be used.

  In addition, forgery in the wireless network 1032 and the network 1041 can be constructed by using a general encryption protocol between the server 1042 and the mobile terminals 1011 to 1013, so that a system that cannot be forged can be constructed. A detailed description is not given here. As a general encryption protocol between the server 1042 and the mobile terminals 1011 to 1013, Secure Socket Layer (SSL) or the like may be used.

[Example 6]
In the sixth embodiment of the present invention, an example will be described in which the BSSID of the wireless LAN base station is used as the second unique information and the third unique information.

  In this embodiment, a wireless LAN base station is used as the wireless base station 1031, an infrared transmitter is used as the transmitters 1001 to 1003, and a notebook PC incorporating a wireless LAN interface and an infrared interface is used as the mobile terminals 1011 to 1013. Think.

  The operation will be described with reference to FIG.

  First, the notebook PC receives position information periodically transmitted from the infrared transmitter (step 7001). Then, the received location information is notified to the server using the wireless LAN (step 7002).

  Thereafter, the second unique information acquisition unit 60 of the server 1042 acquires the BSSID of the wireless LAN base station to which the notebook PC that has notified the position information is connected (step 7003). Here, as a method for acquiring the BSSID of the wireless LAN base station to which the notebook PC to which the server 1042 has notified the location information is connected, a management information base (MIB) stored in the wireless LAN base station is generally used. There are a method of judging from information and a method of judging from MIB information stored in a notebook PC.

  Then, the third unique information deriving unit 20 of the server 1042 uses the table as shown in FIG. 5 stored in the storage unit 40 of the server 1042 based on the notified position information to transmit the infrared transmitter. The BSSID that can be acquired at the position where the is installed is derived (step 7007). Thereafter, the comparison / determination unit 30 of the server 1042 is notified of whether the BSSID acquired by the second unique information acquisition unit 60 and the BSSID derived by the third unique information derivation unit 20 are in a certain relationship. It is determined whether or not the information is legitimate (step 7004). If it is determined that the information is location information from an unauthorized infrared transmitter, an unauthorized use process of the service is performed (step 7005), and regular infrared transmission is performed. If it is determined that the position information is from the machine, the service is used for regular use (step 7006).

  Further, it is desirable that the BSSID of the wireless LAN base station 1031 to be used has higher reliability than the position information from the infrared transmitters 1001 to 1003. Since this point is the same as that of the first embodiment, it will be briefly described below.

  As an example of a method for increasing the reliability of the BSSID used, the server confirms whether the notebook PC notified to the wireless LAN base station having the same BSSID as the BSSID notified from the notebook PC is connected. There is a way to increase reliability.

  Furthermore, as an example of a method for increasing the reliability of the position where the wireless LAN base station is installed, a method for increasing the reliability by checking whether there is a change in the network configuration between the server and the wireless LAN base station, A method of improving reliability by checking whether there is a contradiction in the combination of other wireless LAN base stations with which the notebook PC can communicate, and there is a contradiction in the combination of radio field strengths of signals received by the notebook PC from the other wireless LAN base station. A method to increase reliability by checking whether there is no, a method to increase reliability by checking whether there is no contradiction in the combination of radio wave propagation time with each wireless LAN base station measured by the wireless LAN base station, etc. Is mentioned. In the above embodiment, the BSSID of the wireless LAN base station connected as the second unique information and the third unique information is used. However, the combination of the BSSID of the wireless LAN base station to which the notebook PC can be connected is shown. Alternatively, a combination of signal strengths of signals from a wireless LAN base station to which a notebook PC can be connected may be used.

  In this embodiment, an example in which a wireless LAN base station is used as a wireless base station is shown, but a mobile phone base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the wireless LAN base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  Further, although an example using a notebook PC as a mobile terminal has been shown, a PDA, a business dedicated terminal, a mobile phone, or the like may be used.

  As described above, in Example 6, the BSSID of the wireless LAN base station is used for both the second unique information and the third unique information. Then, when the derived BSSID and the acquired BSSID satisfy a certain relationship (the same), it is determined that the transmitter is in a regular position (no fraud), and processing for regular use of the service is performed.

[Example 7]
In the seventh embodiment of the present invention, an example will be described in which time is used as the second unique information and business hours are used as the third unique information.

  In this embodiment, a wireless LAN base station is used as the wireless base station 1031, an infrared transmitter is used as the transmitters 1001 to 1003, and a notebook PC incorporating a wireless LAN interface and an infrared interface is used as the mobile terminals 1011 to 1013. Think.

  The operation will be described with reference to FIG.

  First, the notebook PC receives position information periodically transmitted from the infrared transmitter (step 8001). Then, the received position information is notified to the server 1042 using the wireless LAN (step 8002).

  Thereafter, the second unique information acquisition unit 60 of the server 1042 acquires the time when the notified position information is received (step 8003). Then, the third unique information deriving unit 20 of the server 1042 uses the table as shown in FIG. 13 stored in the storage unit 40 of the server 1042 based on the notified position information, and transmits the infrared transmission. The business hours at the store where the machine is installed are derived (step 8007).

  Thereafter, the comparison / determination unit 30 of the server 1042 receives the positional information notified based on whether or not the acquired time and the derived business hours have a certain relationship (whether or not the acquired time is within the derived business hours). It is determined whether or not it is legitimate (step 8004), and if it is determined that the position information is from an unauthorized infrared transmitter, the service is illegally used (step 8005). If it is determined that the location information is, the service is used for regular use (step 8006).

  In this embodiment, an example in which a wireless LAN base station is used as a wireless base station is shown, but a mobile phone base station may be used.

  Moreover, although the example which used the infrared transmitter as a transmitter was shown, wireless transmitters other than the wireless LAN base station used for communication (for example, wireless LAN transmitter, zigbee transmitter, specific power saving wireless transmitter, RFID transmission) Machine, visible light transmitter, UWB transmitter, radio wave transmitter for mobile phone).

  In addition, when using the signal of another wireless transmitter, it is necessary to mount the wireless interface which can be received by the wireless transmitter used for the mobile terminal.

  Further, although an example using a notebook PC as a mobile terminal has been shown, a PDA, a business dedicated terminal, a mobile phone, or the like may be used.

  As described above, in the seventh embodiment, the time when the transmitter location information is acquired as the second unique information, and the store business hours are used as the third unique information. Then, if the time at which the position information is acquired is within the business hours of the derived store, it is determined that the transmitter is in the proper position (no fraud), and the process for the regular use of the service is performed.

  Further, in the sixth embodiment and the seventh embodiment described above, the base station ID such as BSSID and the time are used alone as the second unique information and the third unique information, but these may be used in combination. good. Further, the first to seventh embodiments may be used in combination.

  While the present invention has been described with reference to the embodiments (and examples), the present invention is not limited to the above embodiments (and examples). Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2006-307362 for which it applied on November 14, 2006, and takes in those the indications of all here.

Claims (22)

The first unique information, which is information unique to the transmitter received from the transmitter connected via the base station, and the information from the correct transmitter in which the first unique information is installed at the correct position Receiving means for receiving second specific information as a criterion for determining whether or not there is;
Third unique information deriving means for deriving third unique information, which is information unique to an installation position of the transmitter, based on the received first unique information;
The second unique information or the information calculated from the second unique information is compared with the derived third unique information, and the received first unique information is sent from the correct transmitter installed at the correct position. Comparison judgment means for judging whether the information is,
The server characterized by having.   The server according to claim 1, wherein the second unique information and the third unique information are information unique to a base station to which a terminal receiving a signal from the transmitter is connected.   The server according to claim 2, wherein the information unique to the base station is a BSSID. The second unique information is a time at which the terminal receives the first unique information;
The third unique information is the business hours of the store where the transmitter is installed,
The server according to claim 1, wherein the comparison determination unit determines that the received first unique information is authentic when the received time is within the business hours.   2. The server according to claim 1, further comprising second unique information conversion means for calculating information in a format comparable to the third unique information from the second unique information. The second specific information is a time related to signal exchange between a terminal that receives a signal from the transmitter and a base station,
The third unique information is installation coordinates of the transmitter,
The second unique information conversion means calculates the position coordinates of the terminal from the time related to the signal exchange,
The said judgment means judges that the 1st specific information received when the installation coordinates of the said transmitter and the position coordinates of the said terminal satisfy a fixed relationship is regular. 5. The server according to 5. Time related to signal exchange between a terminal and a base station that receives a signal from the transmitter is a radio wave propagation time between each base station and the terminal, or a round trip between each base station and the terminal. 7. The server according to claim 6, wherein the server is a radio wave propagation time, a time when a signal from the terminal arrives at each base station, or a time when a signal from each base station reaches the terminal. The second unique information is a photograph that can be taken by a terminal that receives a signal from the transmitter,
The third unique information is a characteristic that can identify the position of the transmitter,
The second unique information conversion means obtains a feature that can identify the position of the terminal from the photograph,
Determining by the comparison determination means that the received first unique information is authentic when the feature capable of specifying the transmitter and the feature capable of specifying the terminal match. The server according to claim 5. Receiving means for receiving, from a terminal connected via a base station, first unique information which is information unique to the transmitter received from the transmitter;
Third unique information deriving means for deriving third unique information, which is information unique to an installation position of the transmitter, based on the received first unique information;
Second unique information acquisition means for acquiring second unique information as a criterion for determining whether or not the first unique information is information from a correct transmitter installed at a correct position;
The acquired second unique information is compared with the derived third unique information, and it is determined whether or not the received first unique information is information from a correct transmitter installed at a correct position. Comparison judgment means to
The server characterized by having. It consists of a transmitter that transmits first unique information that is unique to its own transmitter, a terminal, a base station that mediates communication between the terminal and the server, and a server that communicates with the terminal via the base station. A communication system,
The server is
First unique information received from a transmitter and second unique information used as a criterion for determining whether or not the first unique information is information from a correct transmitter installed at a correct position are received from a terminal. Receiving means for
Third unique information deriving means for deriving third unique information, which is information unique to an installation position of the transmitter, based on the received first unique information;
The second unique information or the information calculated from the second unique information is compared with the derived third unique information, and the received first unique information is sent from the correct transmitter installed at the correct position. Comparison judgment means for judging whether the information is,
A communication system comprising: The first unique information, which is information unique to the transmitter received from the transmitter connected via the base station, and the information from the correct transmitter in which the first unique information is installed at the correct position A receiving step of receiving second specific information as a criterion for determining whether or not there is;
A third unique information deriving step for deriving third unique information that is information unique to the installation position of the transmitter based on the received first unique information;
The second unique information or the information calculated from the second unique information is compared with the derived third unique information, and the received first unique information is sent from the correct transmitter installed at the correct position. A comparison and determination step for determining whether or not the information is,
The determination method characterized by having.   12. The determination method according to claim 11, wherein the second unique information and the third unique information are information unique to a base station to which a terminal receiving a signal from the transmitter is connected.   The determination method according to claim 12, wherein the information unique to the base station is a BSSID. The second unique information is a time at which the terminal receives the first unique information;
The third unique information is the business hours of the store where the transmitter is installed,
12. The determination method according to claim 11, wherein the comparison determination unit determines that the received first unique information is authentic when the received time is within the business hours.   A second unique information conversion step for calculating information in a format comparable to the third unique information from the second unique information is provided between the reception step and the comparison determination step. Item 12. The method according to Item 11. The second specific information is a time related to signal exchange between a terminal that receives a signal from the transmitter and a base station,
The third unique information is installation coordinates of the transmitter,
In the second unique information conversion step, the position coordinates of the terminal are calculated from the time related to the signal exchange,
2. The comparison determining step determines that the received first unique information is valid when the transmitter installation coordinates and the terminal position coordinates satisfy a certain relationship. 15. The determination method according to 15. Time related to signal exchange between a terminal and a base station that receives a signal from the transmitter is a radio wave propagation time between each base station and the terminal, or a round trip between each base station and the terminal. The determination method according to claim 16, wherein the time is a radio wave propagation time, a time when a signal from the terminal arrives at each base station, or a time when a signal from each base station arrives at the terminal. The second unique information is a photograph that can be taken by a terminal that receives a signal from the transmitter,
The third unique information is a characteristic that can identify the position of the transmitter,
In the second unique information conversion step, a feature that can identify the position of the terminal is obtained from the photograph,
The comparison determination step determines that the received first unique information is authentic when the feature capable of specifying the transmitter and the feature capable of specifying the terminal match. The determination method according to claim 15, wherein: A receiving step of receiving, from a terminal connected via a base station, first unique information which is information unique to the transmitter received from the transmitter;
A third unique information deriving step for deriving third unique information that is information unique to the installation position of the transmitter based on the received first unique information;
A second unique information acquisition step of acquiring second unique information as a criterion for determining whether or not the first unique information is information from a correct transmitter installed at a correct position;
The acquired second unique information is compared with the derived third unique information, and it is determined whether or not the received first unique information is information from a correct transmitter installed at a correct position. A comparative judgment step to
The determination method characterized by having. The first unique information, which is information unique to the transmitter received from the transmitter connected via the base station, and the information from the correct transmitter in which the first unique information is installed at the correct position A receiving process for receiving second specific information as a criterion for determining whether or not there is;
A third unique information derivation process for deriving third unique information that is information unique to the installation position of the transmitter based on the received first unique information;
The second unique information or the information calculated from the second unique information is compared with the derived third unique information, and the received first unique information is sent from the correct transmitter installed at the correct position. A comparison determination process for determining whether or not the information is,
A program that causes a computer to execute.   A second specific information conversion process for calculating information in a format comparable to the third specific information from the second specific information is caused to be executed by a computer between the reception process and the comparison determination process. The program according to claim 21. A receiving process for receiving, from a terminal connected via a base station, first unique information that is information unique to the transmitter received from the transmitter;
A third unique information derivation process for deriving third unique information that is information unique to the installation position of the transmitter based on the received first unique information;
A second specific information acquisition process for acquiring second specific information as a criterion for determining whether or not the first specific information is information from a correct transmitter installed at a correct position;
The acquired second unique information is compared with the derived third unique information, and it is determined whether or not the received first unique information is information from a correct transmitter installed at a correct position. Comparison judgment process to
A program that causes a computer to execute.

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