WO2008010287A1 - Position verifying device, position verifying system, and position verifying method - Google Patents

Abstract

A position verifying device for verifying the position of a mobile terminal as being low cost and high security. An IC card (200) which is the position verifying device is loaded in a portable terminal (300). In the IC card (200), a position comparing section (220) compares GPS position information (L1) indicating the position of the mobile terminal (300) based on the GPS signal transmitted from a GPS satellite and position information (L2) indicating the position of the mobile terminal (300) which is transmitted from a base station (400) and acquired by radio communication with the base station (400). The position comparing section (220) verifies the correctness of the GPS position information (L1) by comparing the GPS position information (L1) and the position information (L2). When the correctness of the GPS position information (L1) is recognized by the verification of the position comparing section (220), a signature section (230) signs the verified object to insure the correctness thereof.

Description

 Specification

 Location certification apparatus, location certification system, and location certification method

 Technical field

 The present invention relates to a location verification device, a location verification system, and a location verification method for verifying (guaranteeing) that a user using a terminal exists at a predetermined location at a predetermined time.

 Background art

 [0002] Conventionally, in an environment where a mobile terminal such as a cellular phone is used, the position of the mobile terminal, that is, a position that provides position certification information for proving the power existing at a certain time at a certain location Providing certification information services is widespread.

 [0003] For example, Patent Document 1 discloses a technology in which a location certificate issuance request is issued from a PDA (Personal Digital Assistant), and a location certificate is issued by a server based on the location certificate issuance request. The

 [0004] In addition, Patent Document 2 discloses an electronic device for proving the creation date and time of an electronic text to a communication partner or a third party. This electronic device creates time stamps and position stamps using GPS (Global Positioning System), etc., outputs them with an electronic signature using a private key, and outputs an electronic signature that proves identity authentication to a private key. To create and output.

 Patent Document 1: Japanese Patent Laid-Open No. 2003-284113

 Patent Document 2: Japanese Patent Laid-Open No. 2004-172865

 Disclosure of the invention

 Problems to be solved by the invention

[0005] By the way, there is a demand for a conventional location certification information providing system that proves the location of a mobile terminal!

[0006] However, in Patent Document 1, since the base station that communicates with the mobile terminal acquires and signs the location information of the terminal, it is necessary to change the configuration of the existing base station, which is costly. As is well known, there is a problem that the location information of a terminal by a station is less accurate than the location information using GPS. [0007] Further, in Patent Document 2, since the location information using GPS information is signed, the accuracy of the location information itself is ensured, but the location information using only GPS information is external in nature. There is a problem that theft or tampering with devices etc. is possible and the safety is poor.

 [0008] An object of the present invention is to provide a position verification device, a position verification system, and a position verification method for verifying the position of a mobile terminal as a low-cost and highly secure one. Means for solving the problem

[0009] The location verification device of the present invention is a location verification device for verifying the location of a mobile terminal that performs wireless communication with a base station, and is obtained by positioning with the mobile terminal. Terminal positioning information including time information indicating the time at which the position information and the position information were obtained, and the position of the mobile terminal transmitted from the base station and obtained by the wireless communication with the base station Information and the base station information including the time information indicating the time when the position information was obtained, and the validity of the terminal positioning information based on the degree of coincidence of the position information corresponding to each time information indicating the same time When the validity of the terminal positioning information is recognized by verification of the position comparison means and the position comparison means, the verification object of the position comparison means is authenticated and the validity of the terminal positioning information is guaranteed. Authentication means to The structure to do is taken.

 The invention's effect

 [0010] As described above, according to the present invention, the position of a mobile terminal that performs radio communication with a base station is determined.

It can be proved as a low cost and high safety.

 Brief Description of Drawings

 FIG. 1 is an overall view showing a configuration of a location certification system including a location certification device according to an embodiment of the present invention.

 [FIG. 2] A block diagram illustrating the schematic configuration of a mobile terminal, an IC card, and a base station device in a location certification system

 FIG. 3 is a flowchart for explaining a signature request process for requesting a location-guaranteed signature for an IC card by a mobile terminal.

[Figure 4] Flowchart explaining the processing of an IC card that has received a signature request from a mobile terminal BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

 FIG. 1 is an overall view showing a configuration of a location certification system 100 including a location certification device (position assurance device) 200 according to an embodiment of the present invention.

 A location verification system 100 shown in FIG. 1 includes a mobile terminal such as a mobile phone (hereinafter referred to as “mobile terminal”) 300 used by a user and a base station 400 that performs wireless communication between the mobile terminal 300 and , A GPS (Global Positioning System) satellite 500, a service providing device 600, and an IC card 200 as a position verification device.

 First, an overview of the location certification system 100 will be described.

 In this location verification system 100, the IC card 200 is mounted inside the portable terminal 300. The IC card 200 stores information (base station information) indicating the position and time of the mobile terminal 300 from the base station 400 acquired via the mobile terminal 300 (location information) and position / time information of the mobile terminal 300 measured by the mobile terminal itself ( Verify (terminal positioning information) and authenticate, here sign. As a result, it is proved that the user using the mobile terminal 300 has existed for a certain period of time in a certain place. Here, the location time information of the mobile terminal 300 measured by the mobile terminal itself is the location information measured by the mobile terminal by receiving a GPS signal, and the time when this location information was acquired is shown here. The terminal positioning information includes the time information shown.

 [0016] The location of the certified mobile terminal 300 is transmitted to the service providing device 600 via the mobile terminal 300, and the service providing device 600 side guarantees the location information ( Service is provided to the mobile terminal 300.

 FIG. 2 is a block diagram illustrating a schematic configuration of the mobile terminal 300, the IC card 200, and the base station device in the location certification system.

 A mobile terminal 300 shown in FIG. 2 can communicate with other mobile terminals via a base station 400, and includes a 0-3 receiver 310, a position information conversion unit 320, and an IC card interface (IZF) unit. And a base station interface (IZF) unit 340.

The mobile terminal 300 acquires the position information of the terminal 300 from the GPS satellite (see FIG. 1) 500 via the GPS receiver 310 and the position information conversion unit 320. The location information is added to the location information indicating the location where the mobile terminal 300 exists, and when this location information is acquired. It includes time information indicating the time at the point.

 [0020] Specifically, the GPS receiver 310 receives GPS information (signals) transmitted from a GPS satellite (see Fig. 1) 500, including a time signal and navigation message data, and a position information conversion unit. Output to 320. Note that the GPS receiver 310 in the mobile terminal 300 is positioned by the mobile terminal itself, which is a mobile terminal, and the terminal positioning includes time information indicating the position information of the mobile terminal 300 and the time when the position information was obtained. Any type of information can be used. For example, the GPS receiver 310 may be a positioning unit using RFID (Radio Frequency Identification) or a wireless LAN. In this case, instead of the GPS satellite 500, a radio frequency identification (RFID) or a transmitter capable of wireless LAN communication is used.

 [0021] The location information conversion unit 320 converts the input GPS information into the latitude and longitude of the own terminal 300, calculates the location information including the latitude and longitude of the own device, and obtains the time information obtained from the GPS information. Processing to calculate is performed. Here, the position information conversion unit 320 calculates the GPS signal power input from the GPS receiver 310, and the position time information (terminal positioning information), which is the position information and time information of the own terminal, is converted into the GPS position information (hereinafter referred to as the GPS position information , “Location information Ll” t \, u). Note that the position information conversion unit 320 may calculate the position information to be calculated as address information.

 [0022] The calculated position information L1 is output to the IC card 200 via the IC card IZF unit 330.

 [0023] Base station IZF unit 340 enables communication between portable terminal 300 and base station 400, and receives information from base station 400 and transmits information to base station 400. In addition, communication is performed with the service providing apparatus 600 which is another apparatus.

 Here, base station IZF section 400 acquires base station information (here, L2 II MAC) including location time information of own terminal 300 transmitted from base station 400, and this acquired base station information The position time information (base station information) from the base station 400 is output to the IC card IZF unit 330 as position information L2 (L2 II MAC in FIG. 2).

[0025] Base station information including location information L2, which is location time information (base station information) from base station 400, is MAC (Message Authen- sation) as authentication information of base station 400 that transmits location information L2. (tication Code) is added.

Here, the base station IZF unit 340 receives the position information L 2 to which the MAC is added as base station information, and outputs the base station information L 2 II MAC to the IC card I / F unit 330. In response to this, in the IC card IZF unit 330, the base station information L2 ||

C card I / F 330 makes signature request position information LI || L2 || M together with position information L1

It is output to IC card 200 as AC.

[0027] Base station 400 provides mobile terminal 300 with location information L2 including location information of mobile terminal 300 obtained by wireless communication with mobile terminal 300 and time information indicating the time when the location information was obtained. Send.

Note that the location information L 2 is output by the terminal location information output unit 410 and transmitted to the base station IZF unit 340 of the mobile terminal 300. The position information L2 is determined by the base station 400 according to the communication status with the mobile terminal 300 in the communication area (cell) of the own station and the position information of the own station.

The mobile terminal 300 is acquired as the location.

[0029] It should be noted that base station 400 transmits information including the location information of its own station to mobile terminal 300, so that mobile terminal 300 can also check the base station that can communicate with the mobile terminal 300 by roughly checking its own base station. The position of can be confirmed. For this reason, the position information L2 may be calculated by the mobile terminal 300 or the IC card 200.

[0030] In addition, the position information L2 is an angle formed by the base station 400, the position of the own station, the communication time with the mobile terminal that communicates, the propagation direction of the radio wave to the mobile terminal, and the position of the own station. It can also be calculated using.

 [0031] Further, the position information L2 may be address information corresponding to the position of the mobile terminal, or may be area information indicating a predetermined area including the position of the mobile terminal. The area information may be, for example, point information indicating a specific point and a range information power indicating a range of radius X meters of the point indicated by the point information, or an area within a specified range on the map. It may be the information shown.

[0032] In the present embodiment, base station 400 has MAC adding section 420 that authenticates the information transmitted to mobile terminal 300 by attaching MAC (Message Authentication Code) as authentication information. is doing. The MAC contains information summarizing the contents of the data body and the communication. Since it contains secret information (such as a common key) that only the other party and the local station know, it is possible to perform both authentication of the other party and detection of message tampering with a single piece of information.

 [0033] With the addition of the MAC, the mobile terminal 300 is configured to prove that the base station information itself is actually of a specific base station capability. Here, the IC card 200 attached to the mobile terminal 300 verifies the MAC, thereby verifying the certainty of the base station information transmitted from the base station.

 Note that the MAC adding unit 420 decides a common key between the sender and the receiver, and uses this common key and a hash function to generate a MAC (message message digest of the message to be transmitted). ) Is added to the end of the message to be sent. For this reason, the MAC adding unit 420 can be easily attached to the existing base station apparatus 400. In addition, an electronic signature using a public key cryptosystem other than MAC may be used.

 Here, the IC card 200 will be described in detail.

 [0036] The IC card 200 uses the position information L2 of the base station information transmitted from the base station 400 to the mobile terminal 300 during communication between the mobile terminal 300 and the base station 400, and uses the position information from GPS. Information L1 is guaranteed to be accurate (valid).

 [0037] In other words, the IC card 200 uses the location information L1 of the mobile terminal 300 using GPS and the base station information that is high in safety but low in accuracy. Compare and verify the location information L2 of the mobile terminal 300 with different accuracy. The IC card 200 ensures the validity of the position information L1 by signing the verification result.

 The IC card 200 includes a MAC verification unit 210, a position comparison unit 220, a signature unit 230, and a storage unit 240.

 [0039] MAC verification section 210 confirms that the transmission source of base station information (including position information L2) is transmitted by a specific base station, here, base station 400.

 [0040] The MAC verification unit 210 performs verification using a common key cryptosystem. The MAC verification unit 210 has a common key with the base station. When the base station uses an electronic signature instead of the MAC, it shall have an electronic signature verification unit instead of the MAC verification unit.

[0041] For example, a secret password such as a common key is determined with the base station 400, and the receiving side, here the IC card 200, receives the received identification information (included in the base station information) and Ask in advance Use the hash function to calculate the MAC from the stored password. Then, the integrity of the base station information is checked by comparing the MAC added to the identification information of the receiving side with the MAC calculated by itself. When the identification information and password are the same, the MAC is also the same, so the MAC verification unit 210 confirms the transmission source of the base station information (specifically, location information L2) and the communication content has been tampered with! !

 In MAC verification unit 210, base station information L2 || MAC to be verified is input as a part of signature request location information LI II L2 II MAC to which IC card iZF unit 330 is also input. Therefore, the MAC verification unit 210 verifies the signature request location information LI II L2 || MAC L2 ||

 [0043] The signature request position information LI II L2 II MAC whose base station information L2 || MAC transmission source validity is confirmed by the MAC verification section 210 is output to the position comparison section 220.

 [0044] The position comparison unit 220 compares the GPS information and the base station information, and verifies the validity of the terminal positioning information based on the degree of coincidence of the position information corresponding to each time information indicating the same time. Here, the position comparison unit 220 compares the GPS position information (position information L1) of the GPS receiver power with the base station information L2 II MAC position information L2 of the base station power, and validates the GPS position information. Verify sex.

 [0045] The position comparison unit 220 confirms whether or not the position information L1 from the GPS receiver is included in the range indicated by the position information L2 from the base station (L1 CL2). If the error is within the range, the correct GPS location information L1 is accepted as valid.

 [0046] As a method of comparing the position information L1 of the mobile terminal 300 based on the GPS signal in the position comparison unit 220 and the position information L2 of the mobile terminal from the base station 400, there are the following methods.

 [0047] For example, the position information L1 and the position information L2 are used as latitude / longitude information, and the position information L1 and the position information L2 are used to confirm that the distance between the two points is within a preset distance. There is a way to do it.

[0048] Further, there is a method in which the position information L1 and the position information L2 are used as text address information, and the address information of the position information L1 and the position information L2 is compared in text. More specifically, for example, the location information L1 is “New ○ If the address “Hama X” and the location information L2 are “Shinohama” as the most powerful address information, the location comparison unit 220 confirms the correctness of the location information L1 by checking the match of the first three characters. It is recognized. In addition, the address information of the location information L1 and the location information L2 may be compared as binary-comparable information to confirm the degree of coincidence between the two.

 [0049] Further, by confirming that the position information L1 is included in the designated range of the map indicated by the position information L2, the position information L1 is latitude / longitude information or address information, and the position information L2 is map information. The validity of the position information L1 is confirmed. As a result, the position of the mobile terminal 300 can be confirmed.

 [0050] Further, it is assumed that the position information L1 is latitude / longitude information, the position information L2 is point information indicating a specific point, and a range information force indicating a range of the radius X meter of the point indicated by the point information. By using such position information L1 and position information L2, it is confirmed that the position information L1 is included within a radius of X meters centered on a specific point indicated by the position information L2. Thus, the validity of the position information L1 is confirmed. As a result, the position of the mobile terminal 300 can be confirmed.

 [0051] As described above, the position comparison unit 220 confirms whether or not the position information L1 based on the GPS signal is within the range indicated by the position information L2.

 [0052] In addition, the position comparison unit 220 may perform error correction on the position information Ll and L2 to be verified when performing comparison by using the position information L1 and the position information L2.

 [0053] For example, in the position comparison unit 220, error correction by GPS continuous positioning, error correction by AFLT (Advanced Forward Link: Trila teration) that estimates the current position using synchronization signals from a plurality of base stations, etc. are used together. Thus, error correction of time information and position information is performed.

 [0054] Further, the error correction in the position comparison unit 220 is performed when A—GPS (Assisted Global Positioning System) is used to acquire the position information of the mobile terminal 300 as a means for acquiring the position information of the mobile terminal 300. A— GPS error correction can be used together. A-GPS is a method that enables high-sensitivity reception of GPS signals from GPS satellites in the building by sending GPS information to the base station and receiving position information as a result.

Further, the error correction in the position comparison unit 220 is performed by using it together with the error correction of the internal clock based on the time information from the base station 400. The comparison target including the GPS position information (position information L 1) validated by the position comparison unit 220, that is, the signature request position information LI II L 2 II MAC is output to the signature unit 230.

 [0057] The signature unit 230 receives the location information of the terminal that has been validated, specifically, the signature request location information LI II L2 || MAC including the valid GPS location information (location information L1). A signature to guarantee the contents, here an electronic signature, is given.

 [0058] In this embodiment, the signature unit 230 compares the signature request position information LI ||

 The digital signature SIG is assigned to the II MAC, the signature SIG is output to the mobile terminal 300, and the signature request location information with a signature LI II L2 II MAC II SIG is output to the storage unit 240.

 Note that the IC card 200 outputs the signature SIG to the IC card IZF unit 330 of the portable terminal 300 after the signature for the signature request position information LI || L2 || The power stored in the storage unit 240 is not limited to this.

 [0060] The signature request position information LI II L2 || MAC input from the mobile terminal 300 is stored at any time in the storage unit 240, and after the predetermined amount is stored, the signature is collectively signed by the signature unit 230. It is good also as a structure output to a mobile telephone. At this time, verification by the position comparison unit 220 may be performed before the signature unit 230 when collectively signing.

 The signature unit 230 in the IC card 200 authenticates the verification target verified by the position comparison unit 220 and guarantees its validity. Therefore, in the IC card 200, instead of the signature unit 230, a MAC addition unit that adds a MAC to the verification target is used, and by this MAC addition unit, the MAC is added to the verification target in the position comparison unit 220. A configuration that guarantees the correctness may be adopted.

 Next, location verification processing in the location verification system having the above configuration will be described using the flowcharts shown in FIG. 3 and FIG.

 FIG. 3 is a flowchart for explaining the signature request processing for requesting the location certification, that is, the signature for guaranteeing the location time, performed by the portable terminal 300 with respect to the IC card 200.

 As shown in FIG. 3, in step S1, the mobile terminal 300 acquires a GPS signal from the 0 PS satellite 500 (see FIG. 1) via the GPS receiver 310, and proceeds to step S2.

[0065] In step S2, the position information conversion unit 320 calculates GPS position information (position information L1) indicating the position and time of the mobile terminal 300 itself from the acquired GPS signal, and performs step S3. Migrate to

 [0066] In step S3, base station information L2 || MAC to which base station 400 power MAC is assigned is acquired via base station IZF section 340, and the process proceeds to step S4.

[0067] In step S4, the GPS position information (position information L1) calculated from the GPS signal power from the GPS satellite 500 and the position information L2 obtained from the base station 400 (specifically, base station information L2 || MAC) are The signature request position information for requesting signature is output as L1 || L2 || MAC to the IC card 200 via the IC card I / F unit.

Signature request position information L1 || L2 || By outputting the MAC to the IC card 200, the signature request processing of the mobile terminal 300 ends.

[0069] In the signature request position information L1 || L2 || MAC, the position information Ll and L2 also includes information indicating the time corresponding to the position of the mobile terminal indicated by each.

FIG. 4 is a flowchart illustrating the processing of the IC card 200 that has received the signature request of the mobile terminal 300.

 [0071] As shown in FIG. 4, in the IC card 200 to which the signature request location information LI II L2 || MAC is input, in step S21, first, the validity of the location time information L2 II MAC from the base station 400 is verified. Validate.

 In this embodiment, since IC card 200 performs a digital signature by PKI, it holds a public key of the base station in advance, and performs verification using this public key.

 [0073] That is, in step S21, the MAC verification unit 210 power base station information L2 || the MAC is verified, and if it is sent from the base station 400, the process proceeds to step S22 and sent from the base station 400. If the correctness is not recognized, the process ends.

 [0074] In step S22, the position comparison unit 220 compares the GPS position information (position information L1) with the base station information L2 II MAC position information L2, and validates the GPS position information (position information L1). Validate.

[0075] Specifically, in step S22, whether or not the GPS position information (position information L1) force is included in the range indicated by the position time information L2 within a preset error range (LI CL2? ) Is verified, and if it is included, the process proceeds to step S23, and if it is not included, the process ends. [0076] In step S23, the signature unit 230 signs the signature request position information LI II L2 II MAC including the GPS position information (position information L 1) for which the validity is recognized, and the process proceeds to step S 24.

 In step S24, signature section 230 outputs the signature to portable terminal 300 via IC card iZF section 330 and also outputs it to storage section 240, and ends the process.

 In response to this, the mobile terminal 300 transmits a signature (digital signature) including the content of the location information L1 whose validity is recognized to the third-party service providing apparatus (see FIG. 1) 600. That is, the mobile terminal 300 to which the IC card 200 is attached can prove to a third party that it has existed for a specific time at a specific location.

 [0079] On the service providing apparatus 600 side, the contents including the location information of the signature are verified, and the service is provided to the mobile terminal 300, specifically, the user of the mobile terminal 300.

 [0080] This makes it possible to charge based on whether or not there is power in a specific area such as a theme park, verify the worker's work by checking the worker's location, confirm the dumping location of the dumper, and locate the child. This is useful as a system used for services such as confirmation.

 As described above, in the position assurance system according to the present embodiment, the safety is low! But the precision is high! The position information L1 that is the GPS position information and the safety included in the base station information L2 II MAC However, the location information L2, which is high but low in accuracy, is highly safe with less leakage of information, specifically, theft and tampering by external devices, etc.位置 The location information of the mobile terminal 300 having validity can be obtained.

 In addition, with high security, the location information can be signed with the IC card 200 and proved to a third party, here, the service providing apparatus 600.

 [0083] In addition, the IC card 200 exists as a device that is safe for the outside independently in the mobile terminal 300 that is the position measurement target, and the position information (GPS position information) L1 used for position assurance is It is calculated by receiving GPS signals directly from the GPS satellite 500.

 [0084] For this reason, it is more safely verified that the position information L1 and the position information L2 indicate the same position as compared with the case where the position information Ll and L2 are compared at the base station to prove the position. This comes out.

That is, when the position is proved by comparing with the base station 400, the position information L1 is transferred. This is transmitted to the base station 400 via the mobile terminal 300 via the radio path, causing a time delay and losing the real-time position information L1. In addition, the possibility of fraud such as theft or falsification by an external device is increased because it passes through a wireless path.

 [0086] Further, when the position of the mobile terminal 300 is proved by a device other than the IC card 200 attached to the mobile terminal 300, for example, when it is performed by a server as a base station or another device, the position information L1 Are sent to the base station 400 and the server that actually compares the location via various routes. For this reason, the reliability of the position information L1 itself also decreases.

 [0087] Further, since the position of the mobile terminal 300 is proved by the IC card 200 attached to the mobile terminal 300, the processing necessary for the position certification process can be completely performed by the IC card 200 and the mobile terminal 300. .

 In mobile terminal 300, position information L 2 acquired from base station 400 uses information received in wireless communication with base station 400. For this reason, the location guarantee using the IC card 200 uses information with high affinity, and it is not necessary to provide a new configuration for obtaining the location information L2, and it is necessary to particularly improve the base station 400 side. Nor. Therefore, it is possible to prove the position of the mobile terminal that performs radio communication with the base station as being low-cost and highly secure.

 In the present embodiment, base station 400 includes position information L2 without adding MAC, which is a force added MAC to position information L2 input to IC card 200 via portable terminal 300. It is good also as a structure which transmits information. In this case, the configuration of the existing base station 400 that does not require the MAC adding unit 420 to be provided in the base station device 400 can be used as it is.

 It should be noted that the position information L1 input to the IC card 200 is not limited to the force that the GPS signal power is also converted in the mobile terminal 300. For example, a position information conversion unit having the same function as the position information conversion unit 320 of the mobile terminal 300 is provided in the IC card 200, and the position information L1 that can be compared by the position comparison unit 220 in the IC card is provided. As a configuration to convert.

Further, a configuration may be adopted in which position information L 1 that can be compared by position comparison section 220 is transmitted directly to GP receiver 310. In this case, the mobile terminal 300 does not need to include the position information conversion unit 320. The information obtained by the GPS receiver 310 can be output to the IC card 200 via the IC card IZF unit 330. [0092] Further, with respect to the location information L2, information from which the base station 400 can calculate the location information L2 to the mobile terminal 300, more specifically, the location of the base station as base station information. The position information L2 that can be compared by the position comparison unit 220 in the mobile terminal 300 may be calculated. Similarly, the IC card 200 may calculate position information L2 that can be compared with the position comparison unit 220 using information such as information indicating the location of the base station.

 In the system 100, the base station 400 may be provided with a communication record storage unit that stores a communication record with the mobile terminal 300. As a result, it is possible to prevent position information forged by combining position information L2 acquired by a certain mobile terminal with position information L1 acquired by a mobile terminal other than a certain mobile terminal.

 [0094] In addition, the service providing apparatus 600 in the system 100 of the present embodiment may be attached with other acquired information acquired by the terminal 300 together with the signed position information from the mobile terminal 300 side.

 [0095] Other acquired information includes camera image, audio information, gyro information, physical authentication (Biometrics) information, various sensor information such as angle 'acceleration' humidity of terminal 300, key operation 'opening / closing operation' And the like.

 Accordingly, the service providing apparatus 600 verifies the position information of the signed mobile terminal 300 and verifies the other acquired information, thereby using the income information in addition to the position information to Service can be provided to 300 users.

 Industrial applicability

[0097] The location verification device, location verification system, and location verification method according to the present invention have the effect of verifying the location of the mobile terminal as being low-cost and highly secure, and include the location information of the mobile terminal. Therefore, it is useful as a system for providing services to mobile terminals.

Claims

The scope of the claims  [1] A location verification device that proves the location of a mobile terminal that performs wireless communication with a base station, and obtains the location information and the location information of the mobile terminal obtained by positioning at the mobile terminal Terminal positioning information including time information indicating the time of a certain time, and the location information of the mobile terminal transmitted from the base station and obtained by the wireless communication with the base station and the location information Position comparison means for comparing the base station information including the time information indicating the time of the terminal and verifying the validity of the terminal positioning information based on the degree of coincidence of the position information corresponding to each time information indicating the same time;  An authentication unit that authenticates a verification target of the position comparison unit when the validity of the terminal positioning information is recognized by the verification of the position comparison unit and guarantees the validity of the terminal positioning information;  A position verification device having.  [2] The location information included in each of the terminal positioning information and the base station information is latitude and longitude information corresponding to the location of the mobile terminal,  The position comparison means compares the terminal positioning information and the base station information, and the distance of the position indicated by the latitude / longitude information included in each of the information is within a preset distance 2. The position verification device according to claim 1, wherein a verification object in which validity of the terminal positioning information is recognized is output to the authentication means. [3] The location information included in each of the terminal positioning information and the base station information is address information corresponding to the location of the mobile terminal,  2. The location comparison unit compares the address information included in each of the terminal positioning information and the base station information, and verifies the validity of the terminal positioning information based on the degree of coincidence of both address information. Position verification device. [4] The position information included in the terminal positioning information is latitude / longitude information or address information corresponding to the position of the mobile terminal, The position information included in the base station information is area information indicating a predetermined area including the position of the mobile terminal, The position comparison means compares the terminal positioning information and the base station information, and verifies that the latitude / longitude information or address information is included in the predetermined area indicated by the area information. The location verification device described. [5] Attached to a mobile terminal that performs wireless communication with a base station,  The terminal positioning information and the base station information are input to the position comparison means by the mobile terminal,  The position verification device according to claim 1, wherein the authentication to the verification target by the authentication unit is output as authentication information to another external device via the mobile terminal. [6] A mobile terminal comprising the location verification device according to claim 1 and performing wireless communication with a base station,  Terminal information calculation means for measuring the position of the terminal itself and calculating terminal positioning information including time information at the time when the position information is obtained together with position information indicating the position;  Position information of the mobile terminal that is wirelessly communicable with an external device, transmitted from the base station, obtained by the wireless communication with the base station, and time information indicating the time when the position information was obtained Wireless communication means for receiving base station information including:  Position information output means for outputting the terminal positioning information and the base station information to the position comparison means of the position verification device;  The communication means is a mobile terminal that transmits, to the other device, authentication information as authentication information that guarantees the validity of the terminal positioning information by the location certification device. [7] With the base station,  Base station information including time information indicating wireless communication with the base station and the location information of the terminal transmitted from the base station and obtained by the wireless communication and the time when the location information is obtained A mobile terminal that obtains terminal positioning information including position information indicating the position and time information indicating the time at which the position information was obtained.  A location certification device to which the terminal positioning information and the base station information are input from the mobile terminal; Comprising The position verification device includes:  Position comparison means for comparing the terminal positioning information with the base station information and verifying the validity of the terminal positioning information based on the degree of coincidence of position information corresponding to each time information indicating the same time;  A position having authentication means for authenticating a verification target of the position comparison means and guaranteeing the validity of the terminal positioning information when the position comparison means confirms the validity of the terminal positioning information. Proof system.  [8] The location verification device is an IC card attached to the mobile terminal, and the authentication by the authentication means is output to the mobile terminal as authentication information,  The location certification system according to claim 7, wherein the mobile terminal includes a transmission unit configured to transmit the authentication information to a device other than the base station. [9] A location certification method for certifying the location of a mobile terminal that performs wireless communication with a base station, and obtaining the location information of the mobile terminal and the location information obtained by positioning at the mobile terminal Terminal positioning information including time information indicating the time of a certain time, and the location information of the mobile terminal transmitted from the base station and obtained by the wireless communication with the base station and the location information A position comparison step for comparing the base station information including the time information indicating the time and verifying the validity of the terminal positioning information based on the degree of coincidence of the position information corresponding to each time information indicating the same time;  An authentication step for authenticating the verification target of the position comparison means and ensuring the validity of the terminal positioning information when the terminal comparison information is validated by verification of the position comparison means;  Outputting the authenticated content as authentication information to an external device including the mobile terminal; and  A location verification method.