JP2019120017A - Authentication system and portable terminal program - Google Patents

Abstract

To implement an authentication system and a portable terminal program that improve accuracy of authentication.SOLUTION: An authentication system includes: a portable terminal existing in a first area or a second area; and an authentication device that exists in the first area and authenticates a valid user existing in the first area. One device of the portable terminal and the authentication device includes determination sound output means for outputting determination sound; the other device includes determination sound measurement means for collecting the determination sound to measure a sound pressure level. The portable terminal includes authentication request transmission means for wirelessly transmitting an authentication request signal including identification information to the authentication device. The authentication device is configured to include: measurement result acquisition means for acquiring an affirmative measurement result showing that a sound pressure level of measured determination sound is equal to or higher than a threshold; validity collation means for determining whether or not a user is valid, using the identification information; and existence authentication means that when the affirmative measurement result is acquired and it is determined that the user is valid, determines that the user is a valid user existing int the first area.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an authentication system and a mobile terminal program.

  In the room entry and exit management system that physically restricts entrance to the security area from the public area, hands-free authentication is performed without the user touching or holding the ID card etc. Some electric locks on the door are unlocked. In such a hands-free entry / exit management system, for example, a portable terminal such as a wireless tag away from the door transmits a signal having user ID information on the radio wave, and the tag reader near the door transmits the radio wave. It receives and acquires ID information and measures the electric field strength of the radio wave. The authentication device of this room entry and exit management system is one in which the ID information acquired by the tag reader is registered in advance, and when the electric field strength is larger than a predetermined value, it is determined that the user can pass and the door electric lock is opened. Lock it. (Refer to Patent Document 1)

JP, 2012-219483, A

  However, in the above-mentioned hands-free entry / exit management system, the tag reader can receive radio waves transmitted from a wireless tag within a certain distance with a field strength of a certain level or more, and the radio waves have high transparency. In order to have it, the electric wave transmitted from the wireless tag around the back side of the door passes through the door or the wall and is received by the tag reader with a certain level of electric field strength or more. In this case, since it is determined that passage of the door is already permitted and the ID information transmitted from the user's wireless tag behind the door is determined to be passable, the electric lock on the door is erroneously unlocked, and the passage is It is possible that outsiders in the public area before the door should not be allowed to enter the security area.

  An object of the present invention is to provide an authentication system and a mobile terminal program that improve the accuracy of authentication.

  According to one aspect of the present invention for solving such a problem, a portable terminal, which is present in any one of a first area and a second area in which sound is mutually blocked, carried by a user, There is provided an authentication system including an authentication device which is present in one area and which authenticates that a user of a portable terminal is a valid user who exists in a first area. In the authentication system, one of the portable terminal and the authentication device has a determination sound output unit that outputs a determination sound, and the other of the portable terminal and the authentication device is output from one of the devices. The portable terminal has authentication request transmission means for wirelessly transmitting an authentication request signal having identification information of the portable terminal to the authentication device. If the sound pressure level of the judgment sound measured by the judgment sound measurement means is equal to or higher than the threshold, the authentication device acquires measurement result acquisition means for acquiring a positive measurement result that the sound pressure level of the judgment sound is higher than the threshold; Validity verification means for determining whether or not the user of the portable terminal is valid based on the identification information of the authentication request signal transmitted from the terminal, and the measurement result acquisition means acquires a positive measurement result and is valid By means of sex verification If the user of the portable terminal is determined to be valid, with the presence authentication means determines that the user of the portable terminal is a legitimate user who is present in the first area, the.

  In such an authentication system, the other device further includes trigger transmission means for wirelessly transmitting the trigger signal to one of the devices based on a predetermined trigger condition, and the determination sound output means receives the trigger signal from the other device. It is preferable to output a judgment sound.

  Further, in such an authentication system, one device is an authentication device, the other device is a portable terminal, and the authentication request transmission means has a sound pressure level of the judgment sound measured by the judgment sound measurement means equal to or higher than a threshold. Preferably, the authentication request signal is wirelessly transmitted to the authentication device, and the measurement result acquisition unit acquires the authentication request signal received from the authentication request transmission unit as a positive measurement result.

  Further, in such an authentication system, the trigger transmission means transmits a trigger signal having identification information of the portable terminal to the authentication device, and the presence authentication means has identification information of the trigger signal received by the authentication device and an authentication request signal. It is preferable to collate the identification information and to determine that the user of the portable terminal is a valid user who exists in the first area when they match.

  Further, in the authentication system, the authentication device includes a storage unit storing output determination sound pattern information representing determination sound of a pattern corresponding to identification information of each portable terminal, and the determination sound output means stores the stored output determination The determination sound of the pattern corresponding to the identification information of the trigger signal received based on the sound pattern information is output, and the portable terminal stores the sound collection determination sound pattern information representing the determination sound of the pattern set in the own terminal. Preferably, a storage unit is provided, and the determination sound measurement means measures the sound pressure level by taking out the determination sound of the pattern represented by the collected sound determination sound pattern information stored from the collected determination sound.

  Furthermore, in such an authentication system, it is preferable that the determination sound measurement unit collects and measures the determination sound for a predetermined period after the trigger transmission unit transmits the trigger signal.

  Further, in the authentication system, the portable terminal further includes a stillness detecting means for detecting the stillness of the walking motion of the user, and the trigger transmitting means authenticates the trigger signal when the stillness detecting means detects the stillness of the walking motion. It is preferable to wirelessly transmit to the device.

  According to another aspect of the present invention, an authentication device exists in any one of a first area and a second area in which sound is mutually blocked, and a portable terminal carried by a user is present in the first area. In addition, a portable terminal program is provided that executes a process of requesting that the user of the portable terminal authenticates that the user is a valid user who exists in the first area. The portable terminal program collects the determination sound output from the authentication device to the portable terminal to measure the sound pressure level, and when the measured sound pressure level is equal to or higher than the threshold value, the authentication having the identification information of the portable terminal A request signal is wirelessly transmitted to the authentication device to execute processing for requesting authentication of the user of the portable terminal.

  In such an authentication system, one device is a portable terminal, the other device is an authentication device, and the measurement result acquisition unit determines whether the sound pressure level of the determination sound measured by the determination sound measurement unit is equal to or higher than a threshold. It is preferable to acquire the said determination result as a positive measurement result, when it is more than a threshold value.

  According to the authentication system and the mobile terminal program of the present invention, the accuracy of authentication can be improved.

It is explanatory drawing of the subject in a room entrance and exit management system. It is explanatory drawing of the solution method of the subject in the access control system by this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram of the access control system 1 which concerns on one Embodiment of this invention. FIG. 2 is a block diagram of a mobile terminal 10; FIG. 2 is a block diagram of an authentication device 20. FIG. 2 is a diagram showing an operation sequence of each device in the entry and exit management system 1. 5 is a flowchart showing an operation of a passing request transmission process of the mobile terminal 10; 5 is a flowchart showing the operation of the presence authentication process of the authentication device 20.

  FIG. 1 is an explanatory view of a problem in the room entry and exit management system. Passage from the public area on the left to the security area on the right bordering the central door and wall of the figure is physically restricted by the electrically locked door. There are passers a and c in the public area and passers b and d in the security area, each carrying a portable terminal A, C, B, D. Hereinafter, the front side of the door will be referred to as the front side of the door and the back side of the door as the rear side of the door, as viewed from the pedestrians a and c in the public area. As shown in FIG. 1, the range in which the authentication device can receive radio waves with a certain strength or more from the portable terminal is slightly attenuated when radio waves transmitted from the back side of the door pass through the door, so the back side is somewhat Although it becomes narrower, it also includes the back side of the door because of its high radio wave permeability. A range on the front side of the door where the authentication device can receive radio waves from the portable terminal with a certain strength or more is called area X. On the other hand, the area on the back side of the door where the authentication device can receive radio waves from the portable terminal with a certain strength or more is called area Y.

  In the public area, the passer-by c passes away from the door, but the passer-by a stops in front of the door on which the authentication device is installed in order to enter the security area. Then, the portable terminal A of the passer-by a detects stationary state and wirelessly transmits a signal having ID information and the like of the passer-a to the authentication device. At this time, as shown in FIG. 1, since the portable terminal A is located in the area X, the strength of the signal received by the authentication device from the portable terminal A is at least a certain level. In this case, the authentication device considers that the passer-by user who is the user of the portable terminal A who has sent this signal is stationary near the door, and therefore considers that he is willing to pass the door, and the ID information of the signal is registered. It authenticates the passer-by a by collating with the ID information of the user. Then, when it is determined that the passer-by a is a valid user who can enter the security area, the authentication device unlocks the electric lock of the door for a predetermined period and permits the passer-by's pass. Even if the portable terminal C of the passer c located outside the area X erroneously detects a standstill and transmits a signal, the strength of the signal received from the portable terminal C is less than a certain level. For this reason, the authentication device considers that the passer-by c carrying the portable terminal C is at a distance from the door and does not have the intention to pass the door, and does not perform authentication, so the electric lock on the door is not unlocked. Therefore, for portable terminals A and C located in the public area, traffic restriction from the public area to the security area is correctly performed.

  On the other hand, in the security area, the portable terminal D of the passer d who passes away from the door does not transmit a signal because it does not detect a stationary state, and erroneously detects a stationary state and transmits a signal to the authentication device. Since the portable terminal D is located outside the area Y, authentication of the passer d who carries the portable terminal D is not performed as in the case of the portable terminal C on the front side of the door. On the other hand, the portable terminal B of the passer-by b who talks by staying behind the door detects the stationary state and wirelessly transmits a signal having the ID information and the like of the passer-over b to the authentication device. At this time, as shown in FIG. 1, since the portable terminal B is located in the area Y, the strength of the signal received by the authentication device from the portable terminal B is at least a certain level. As described above, since the radio wave is highly transparent, the signal transmitted from the portable terminal B on the back side of the door is transmitted through the door and received by the authentication device with a certain strength or more. Further, since the passer b is already permitted to pass the door and is in the security area, the ID information transmitted from the portable terminal B is the ID information of the registered valid user. Therefore, the authentication device determines that the passer b is a valid user who can enter the security area, and unlocks the electric lock of the door in order to permit passage. In this way, when the authentication device unlocks the door's electric lock even for the passer b who is behind the unwilling pass door, the passerby a who happened to be in front of the door then receives the certification. Instead, they can enter the security area regardless of whether they are legitimate users who can enter. For this reason, there is a problem that an unauthorized outsider may enter the security area.

  FIG. 2 is an explanatory view of a solution method of the problem in the entry and exit management system according to the present invention. In the present invention, the above problem is solved by utilizing the fact that the sound pressure level of the sound passing through the door or the wall is low because the permeability of the sound is lower than that of the radio wave. Similar to FIG. 1, the sizes of the range in which the authentication device can receive radio waves with a certain level or more from the portable terminal are the area X and the area Y. On the other hand, since the sound has low permeability and directivity, the sound pressure level of the sound passing through the door among the sounds emitted from the authentication device on the front of the door to the front side becomes very small. The range (sound area y in FIG. 2) where the sound reaches a certain level or more on the back side is very narrow compared to the range (area x in FIG. 2) where the sound reaches a certain level or more on the front side of the door. . Therefore, as for portable terminal A and portable terminal B existing in area X or area Y, portable terminal A existing in the public area on the front side of the same door as the authentication apparatus has a fixed determination sound because it is located in area x Although sound can be collected at the above sound pressure level, the portable terminal B present in the security area on the back side of the door different from the authentication device can not collect the determination sound at a predetermined sound pressure level or more because it is located outside the area y. Using this, in the present invention, only the portable terminal A that has collected the determination sound of the sound pressure level above a certain level transmits a traffic request signal having ID information etc. to the authentication device, and The portable terminal B whose sound pressure level is lower than a certain level does not transmit the traffic request signal. Thus, the authentication device receives ID information from only the portable terminal A existing in the public area on the front side of the same door as the authentication device to perform authentication, and does not authenticate the portable terminal B existing in the security area on the back side of the door. Therefore, it is possible to prevent the electric lock of the door from being unlocked by mistake for the portable terminal B present on the back side of the door. As described above, the authentication device according to the present invention is present on the back side of the door by performing authentication only on the portable terminal A that collects the determination sound output to the front side of the door at a certain sound pressure level or more. Since the portable terminal B is excluded from the authentication target, the accuracy of authentication can be improved.

  Hereinafter, an embodiment in which an authentication system and a portable terminal program according to the present invention are applied to a hands-free entry and exit management system will be described with reference to the drawings. However, it should be understood that the present invention is not limited to the embodiments described in the drawings or below.

  FIG. 3 is an overall configuration diagram of the room entry and exit management system 1 according to the embodiment of the present invention. As shown in FIG. 3, the entry and exit management system 1 has a portable terminal 10, an authentication device 20, a door 30, and a management device 40. The front public area on the front side of the door 30 and the security area on the rear side of the door 30 are separated by the door 30 and a wall. In FIG. 3, regarding the portable terminal 10, the portable terminal 10-1 present in the public area (first area) on the front side of the door 30 and the portable terminal 10 present in the security area (second area) on the back side of the door 30. Although -2 is shown, the position of the portable terminal 10 is not limited to this. Also, the authentication device 20 may be installed anywhere on the front side of the door 30 as long as it is sufficiently close to the door 30. The portable terminal 10 located within a certain range around the authentication device 20 can perform wireless communication with the authentication device 20 with a certain or higher signal strength. Furthermore, although the authentication device 20 can output a judgment sound that reaches at a certain sound pressure level or more within a certain range on the front side of the door 30, this judgment sound hardly penetrates the door 30, so to the back side of the door 30. Does not reach at that constant sound pressure level. Further, the authentication device 20 is communicably connected to the electric lock 31 so as to be able to control the opening and closing of the electric lock 31 of the door 30. Furthermore, the authentication device 20 is connected to the management device 40 via the local and / or wide area network 90.

  In the entrance / exit management system 1 according to the present invention, the portable terminal 10-1 of the user (passer a in FIG. 2) who stopped in front of the door where the authentication device is installed in order to enter the security area in the public area The trigger signal having the identification information is wirelessly transmitted to the authentication device 20 according to the trigger condition of detecting the stationary state of the walking motion of the user. When the authentication device 20 receives this trigger signal with a predetermined signal strength or more, it outputs a determination sound to the front side of the door 30 in order to start authentication of the portable terminal 10-1. The portable terminal 10-1 wirelessly transmits a passage request signal (authentication request signal, positive measurement result) having identification information to the authentication device 20 when a sound having a predetermined sound pressure level or more is collected within a predetermined period. . The authentication device 20 confirms that the identification information of the trigger signal and the identification information of the passage request signal coincide with each other when the passage request signal is received with a predetermined signal strength or more, and the coincident identification information is registered in advance. Match with legitimate identification information. Then, if the identification information of the trigger signal and the passage request signal matches the registered valid identification information, the authentication device 20 can recognize that the portable terminal 10-1 is present in the same public area as the authentication device 20. It determines with it being a portable terminal, unlocks the electric lock 31 of the door 30, and permits passage.

  On the other hand, in the security area, the portable terminal 10-2 of the user (passer b in FIG. 2) who is staying and talking in the vicinity of the back side of the door 30 has identification information when detecting that the movement is stopped. The trigger signal is wirelessly transmitted to the authentication device 20. When the authentication device 20 receives this trigger signal with a predetermined signal strength or more, it outputs a determination sound to the front side of the door 30 in order to start the authentication of the portable terminal 10-2. However, even if the portable terminal 10-2 is located near the door where the authentication device 20 can receive the signal from the portable terminal 10-2 with a certain strength or more, the back side of the door 30 from the authentication device 20 is located. Since the determination sound can not be collected at a sound pressure level equal to or higher than a predetermined level, the passage request signal is not transmitted, so the authentication by the authentication device 20 is not performed.

  Therefore, the entry and exit management system 1 according to the present invention excludes the portable terminal 10-2 of the non-passing user who exists in the security area on the back side of the door 30 from the authentication target and the public area on the front side of the door 30. Are authorized to pass by authenticating only the portable terminal 10-1 of the valid user present in

  The mobile terminal 10 is a mobile information processing apparatus such as a wireless tag or a smartphone which is carried by a user (a person, a robot or the like) and moves with the user. The portable terminal 10 can detect the stationary state of its own motion, perform wireless communication with the authentication device 20, collect the determination sound output from the authentication device 20, and measure the sound pressure level. When detecting that the user carrying the portable terminal 10 has stopped, the portable terminal 10 wirelessly transmits a trigger signal having identification information to the authentication device 20 and then collects surrounding sounds for a predetermined period. The portable terminal 10 wirelessly transmits a passage request signal having identification information to the authentication device 20 if the sound pressure level at which the determination sound from the authentication device 20 is measured is equal to or higher than a predetermined level. In addition, when the portable terminal 10 receives the passage permission signal from the authentication device 20, it may display on the screen that the passage is permitted.

  The authentication device 20 is an information processing device that performs wireless communication with the mobile terminal 10, outputs a determination sound, and performs authentication of the mobile terminal 10. When wirelessly receiving the trigger signal from the portable terminal 10, the authentication device 20 outputs a determination sound of a predetermined pattern to the front side of the door 30 if the strength of the received trigger signal is equal to or higher than a predetermined value. Further, when the authentication device 20 receives a passage request signal having identification information from the portable terminal 10, the intensity of the passage request signal is equal to or higher than a certain level, and the identification information of the trigger signal matches the identification information of the passage request signal. If the matching identification information is valid for the registered user, it is determined that the user of the portable terminal 10 is a valid user who can enter the security area. In this case, the authentication device 20 physically permits the passage of the user by transmitting an unlocking signal to the electric lock 31 of the door 30 for unlocking. At this time, the authentication device 20 notifies the portable terminal 10 that the passage is permitted, and transmits the entry record of the user of the portable terminal 10 to the security area to the management device 40 via the network 90.

  The door 30 is installed between the public area and the security area, and physically restricts the passage of the user between the public area and the security area by unlocking or locking the electric lock 31. The door 30 physically prohibits the user from passing between the public area and the security area by always keeping the electric lock 31 in the locked state, and when the unlock signal is received from the authentication device 20, the electric lock 31 Is unlocked for a predetermined period of time to allow the user to pass through the door 30. Although the sound pressure level of the sound arriving from the public area on the front side of the door 30 to the security area on the back side or in the opposite direction decreases by a certain amount or more, in this case, it is expressed that the sound is blocked between the mutual areas.

  The management device 40 is an information processing device such as a server that manages entry and exit records of each area of each user in the entire predetermined building. The management device 40 can transmit / receive data to / from the authentication device 20 via the wired / wireless communication local and / or wide area network 90. The management device 40 receives entry and exit records regarding the user's specific security area from the plurality of authentication devices 20, and manages entry and exit places of the user in each area based on the received entry and exit records.

  FIG. 4 is a block diagram of the portable terminal 10. As shown in FIG. 4, the mobile terminal 10 includes a wireless communication unit 11, a motion detection unit 12, a sound collection unit 13, an operation / display unit 14, a storage unit 15, and a control unit 16.

  The wireless communication unit 11 is a wireless communication interface that performs wireless communication with the authentication device 20. The wireless communication unit 11 conforms to a protocol corresponding to the wireless communication protocol of the authentication device 20, such as BLE (Bluetooth (registered trademark) Low Energy), ZigBee (registered trademark), Wi-Fi (registered trademark) (Wireless Fidelity). The wireless communication unit 11 converts the data or signal received from the control unit 16 into a wireless signal, puts it on a radio wave, transmits it to the authentication device 20, or converts the radio signal on the radio wave received from the authentication device 20 into data or signal It converts and passes it to the control unit 16. Also, the wireless communication unit 11 passes the signal strength based on the electric field strength of the received radio wave to the control unit 16.

  The motion detection unit 12 is a sensor that has an acceleration sensor, a gyro sensor, or the like, and detects the motion of the mobile terminal 10. The motion detection unit 12 passes, to the control unit 16, motion information on the detected motion of the mobile terminal 10.

  The sound collection unit 13 has a microphone or the like, and collects sounds around the portable terminal 10. The sound collection unit 13 may have an ultrasonic detector or the like that collects sound other than audible sound. The sound collection unit 13 sends information on the collected sound to the control unit 16.

  The operation / display unit 14 has a touch panel or the like in which a touch pad and a screen such as a liquid crystal display or an organic EL (Electro-Luminescence) display are combined. The operation / display unit 14 may have a button, a key, a microphone, etc. The operation / display unit 14 is an operation unit through which the user inputs instructions and data to the portable terminal 10, and an operation state of the portable terminal 10 And a display unit for displaying the processing result to the user, but the operation unit and the display unit may be separate devices. The operation / display unit 14 passes information on the operation performed by the user to the control unit 16 and displays the data received from the control unit 16 on a screen or the like.

  The storage unit 15 stores code and data of a computer program executed on the mobile terminal 10. For example, the storage unit 15 can have a semiconductor memory such as a RAM, a ROM, or an EPROM. Further, the storage unit 15 may have any type of storage device such as a flash memory, a magnetic storage device, an optical storage device, and the like.

  The control unit 16 has a processor and peripheral circuits, and the processor implements various operations performed by the mobile terminal 10 by executing the computer program stored in the storage unit 15. The computer program executed by the control unit 16 may be stored in advance in the storage unit 15, and may be provided by a computer readable storage medium such as a flash memory, a magnetic storage medium, an optical storage medium, or a communication line. May be stored. At least a part of the storage unit 15 and the control unit 16 may be configured by a microcontroller.

  As shown in FIG. 4, the storage unit 15 stores portable terminal identification information 151 and sound collection determination sound pattern information 152. The portable terminal identification information 151 and the sound collection judgment sound pattern information 152 are set by the user of the portable terminal 10 or the manager of the room entry and exit management system 1 or provided through an arbitrary computer readable storage medium or communication line. And stored in advance in the storage unit 15.

  The portable terminal identification information 151 is identification information that uniquely identifies the portable terminal 10 or a user who carries the portable terminal 10. For example, the portable terminal identification information 151 has identification information such as a serial number or identification number uniquely assigned to the portable terminal 10, or an employee number or personal number assigned to an individual who carries the portable terminal 10. The identification information is included in the trigger signal and the passage request signal and transmitted to the authentication device 20, and is used in the authentication device 20 to authenticate the legitimacy of the user who carries the portable terminal 10.

  The sound collection determination sound pattern information 152 is information representing a pattern of a determination sound for identifying a determination sound collected by the mobile terminal 10 from ambient sound and the like. Here, the determination sound output from the authentication device 20 is a synthesized sound using a specific frequency, and the sound collection determination sound pattern information 152 is, for example, a frequency spectrum obtained by analyzing this synthesized sound. The sound collection determination sound pattern information 152 may have a pattern of a series of notes representing a specific melody.

  As shown in FIG. 4, the control unit 16 functions as a function module realized by executing a computer program stored in the storage unit 15, including a stationary detection unit 161, a trigger transmission unit 162, a determination sound measurement unit 163, and A passage request transmission means (authentication request transmission means) 164 is provided.

  The stillness detection means 161 receives movement information on the movement of the portable terminal 10 from the movement detection unit 12 and, based on the received movement information, whether the user carrying the portable terminal 10 is in a stationary state or in a walking state To detect For example, when the motion information of the portable terminal 10 received from the motion detection unit 12 indicates that the motion information of the mobile terminal 10 is stationary for a predetermined stationary period such as one second, the stationary state detection unit 161 detects the user's stationary state. To notify the trigger transmission means 162. Otherwise, the stationary state detection unit 161 detects the walking state in which the passer is walking. The predetermined resting period, which serves as a reference for detecting the resting state of the mobile terminal 10, may be arbitrarily changed by the user.

  When the stillness detection means 161 detects the stationary state of the user of the portable terminal 10, the trigger transmission means 162 reads out the identification information of the portable terminal identification information 151 stored in the storage unit 15, and generates a trigger signal having this identification information. It is generated and transmitted to the authentication device 20 via the wireless communication unit 11.

  The determination sound measurement unit 163 analyzes the pattern of the sound collected by the sound collection unit 13 in a predetermined period of, for example, about 3 seconds, and the collected sound determination sound pattern information in which the analyzed sound pattern is stored in the storage unit 15 If it matches the pattern 152, the sound of the matched part is taken out as a judgment sound, the sound pressure level is measured, and it is passed to the passage request transmission means 164. For example, the determination sound measurement unit 163 may perform spectrum analysis to convert an analog sound collected by the sound collection unit 13 into a digital sound and obtain an intensity for each frequency by Fourier transform.

  The passage request transmission unit 164 determines whether the sound pressure level of the determination sound measured by the determination sound measurement unit 163 is equal to or higher than a predetermined threshold, and storage is performed only when the sound pressure level is equal to or higher than the threshold. The identification information of the portable terminal identification information 151 stored in the unit 15 is read out, a passage request signal having this identification information is generated, and transmitted to the authentication device 20 via the wireless communication unit 11. The threshold value of the sound pressure level is predetermined based on the value of the sound pressure level at which the portable terminal 10 located within the predetermined range around the door 30 on the front side of the door 30 can collect the determination sound from the authentication device 20 Be For example, the threshold of the sound pressure level is a door between the portable terminal 10 and the authentication device 20 when the portable terminal 10 is located within a predetermined range of a distance from the door 30 of 3 m or less, more preferably 1 m or less. The sound pressure level of the determination sound collected from the authentication device 20 in the absence of an obstacle such as 30 is determined based on the smallest possible value. The operation of the passage request transmitting means 164 will be described in detail later using FIG.

  FIG. 5 is a block diagram of the authentication device 20. As shown in FIG. As shown in FIG. 5, the authentication device 20 includes a wireless communication unit 21, a LAN communication unit 22, a sound output unit 23, an electric lock I / F unit 24, a storage unit 25, and a control unit 26.

  The wireless communication unit 21 is a wireless communication interface that performs wireless communication with the mobile terminal 10. The wireless communication unit 21 conforms to a protocol corresponding to the wireless communication protocol of the mobile terminal 10, such as BLE, ZigBee, Wi-Fi. The wireless communication unit 21 converts the data or signal received from the control unit 26 into a wireless signal, puts it on a radio wave, transmits it to the portable terminal 10, or converts the radio signal on the radio wave received from the portable terminal 10 into data or signal It converts and passes it to the control unit 26. Also, the wireless communication unit 21 passes the signal strength based on the electric field strength of the received radio wave to the control unit 26.

  The LAN communication unit 22 is a communication interface that communicates with the management device 40 via a local area network (LAN) and / or a wide area network 90 to which the authentication device 20 is connected. For example, the LAN communication unit 22 can perform wired / wireless communication with the LAN to which the authentication device 20 is connected, and can transmit / receive data to / from the management device 40 via a wide area network such as the Internet to which this LAN is connected. . In this case, the LAN communication unit 22 conforms to a protocol corresponding to a wired / wireless communication protocol of a LAN to which the authentication device 20 is connected, such as Ethernet (registered trademark) (Ethernet (registered trademark)) or WiFi. Although an example in which the authentication device 20 communicates with the management device 40 via the LAN and the wide area network is shown here, any communication between the authentication device 20 and the management device 40 is possible as long as data can be transmitted and received. It may be carried out in the form of communication. The LAN communication unit 22 transmits the data received from the control unit 26 to the management apparatus 40, and passes the data received from the management apparatus 40 to the control unit 26.

  The sound output unit 23 has a speaker or the like, and outputs a sound to the front side of the door 30. The sound output unit 23 may have an ultrasonic wave generator or the like that outputs a sound other than an audible sound. In the present embodiment, the sound output unit 23 is an example in which the sound output unit 23 is incorporated in the authentication device 20, but the sound output unit 23 is separated from the authentication device 20. It may be installed. In this case, the sound output unit 23 can communicate with the authentication device 20 by wired / wireless communication.

  The electric lock I / F unit 24 is an interface connected to the electric lock 31 of the door 30 by wired / wireless communication, and transmits an unlocking signal or a locking signal to the electric lock 31.

  The storage unit 25 stores code and data of a computer program executed in the authentication device 20. For example, the storage unit 25 can have a semiconductor memory such as a RAM, a ROM, or an EPROM. In addition, the storage unit 25 may have any type of storage device such as a flash memory, a magnetic storage device, an optical storage device, and the like.

  The control unit 26 has a processor and peripheral circuits, and the processor implements various operations performed by the authentication device 20 by executing a computer program stored in the storage unit 25. The computer program executed by the control unit 26 may be stored in advance in the storage unit 25 and may be provided by a computer readable storage medium such as a flash memory, a magnetic storage medium, an optical storage medium, or a communication line. May be stored. At least a part of the storage unit 25 and the control unit 26 may be configured by a microcontroller.

  As illustrated in FIG. 5, the storage unit 25 stores authentication target identification information 251, output determination sound pattern information 252, registered user information 253, and entry and exit record information 254. The output determination sound pattern information 252 and the registered user information 253 are set by the administrator of the entry and exit management system 1 or provided via an arbitrary computer readable storage medium or communication line, and are stored in the storage unit 25. It can be stored.

  The authentication target identification information 251 temporarily stores information on the portable terminal 10 that is to be authenticated by the authentication device 20, and includes identification information possessed by the trigger signal received by the wireless communication unit 21 from the portable terminal 10.

  The output determination sound pattern information 252 is information representing the pattern of the determination sound output by the sound output unit 23. The output determination sound pattern information 252 includes information representing the same pattern as the synthetic sound, melody, morse signal or the like as the sound collection determination sound pattern information 152 of the portable terminal 10.

  The registered user information 253 is information in which information about a valid user who is permitted to enter the security area is registered in advance. The registered user information 253 corresponds to the portable terminal identification information 151 of the portable terminal 10, the employee number or personal number of the valid user, or the serial number or identification number of the portable terminal 10 possessed by the valid user. And identification information.

  The entry and exit record information 254 is information for recording a user who is permitted to pass from the public area to the security area by the authentication device 20 and enters. In addition, when the authentication device 20 is installed in the security area on the back side of the door 30, the information of the user who has exited from the security area to the public area is recorded in the entry and exit record information 254.

  As shown in FIG. 5, the control unit 26 is a functional module realized by executing a computer program stored in the storage unit 25, including trigger receiving means 261, determination sound output means 262, passing request receiving means (measurement Result acquisition means) 263, validity verification means 264, presence authentication means 265, passage permit means 266, and entry / exit recording means 267.

  If the strength of the trigger signal received from the portable terminal 10 via the wireless communication unit 21 is equal to or greater than a predetermined threshold, the trigger receiving unit 261 sets the portable terminal 10 that transmitted the trigger signal as an authentication target, and generates a trigger signal. Is stored in the storage unit 25 as the authentication target identification information 251. In addition, the trigger receiving unit 261 notifies the determination sound output unit 262 that the portable terminal 10 that has transmitted the trigger signal is targeted for authentication. The threshold of the signal strength is set based on the value of the strength of the wireless signal received by the authentication device 20 from the portable terminal 10 located within the predetermined range around the door 30 on the front side of the door 30. For example, when the portable terminal 10 is positioned within a predetermined range of 3 m or less, and more preferably 1 m or less, the authentication apparatus 20 has an obstacle with the portable terminal 10 as the threshold of the signal strength. In the absence state, the strength of the radio signal received from the portable terminal 10 is set based on the minimum value that can be taken.

  When the trigger receiving unit 261 receives a trigger signal having an intensity equal to or higher than the threshold, the determination sound output unit 262 causes the sound output unit 23 to output the determination sound of the pattern indicated by the output determination sound pattern information 252 stored in the storage unit 25. It is output to the front side of the door 30 for a predetermined period, for example, of about 1 second. The sound pressure level and direction of the judgment sound output from the judgment sound output means 262 are the front side of the door 30 and the distance from the door 30 is within a predetermined range such as 3 m or 1 m or less. Are set so that sound can be collected at a sound pressure level equal to or higher than a predetermined threshold. The determination sound output unit 262 may output the determination sound a plurality of times.

  If the strength of the traffic request signal received from the portable terminal 10 by the wireless communication unit 21 is equal to or higher than the threshold, the traffic request reception means 263 notifies the presence authentication means 265 that the traffic request signal having the strength equal to or higher than the threshold is received. . The threshold of the strength of the passage request signal is predetermined in the same manner as the threshold of the strength of the trigger signal.

  The legitimacy collation means 264 collates the identification information of the passage request signal with the identification information of the registered user information 253 stored in the storage unit 25, and the user of the portable terminal 10 is permitted to enter the security area. To determine if the user is a legitimate user. The legitimacy collation means 264 is a legitimate user who is permitted to enter the security area when the identification information of the passage request signal matches the identification information of the registered user information 253. It is determined that

  The presence authentication means 265 authenticates whether the user of the portable terminal 10 is a valid user present in the public area on the front side of the same door 30 as the authentication device 20. When being notified that the passage request signal is received from the passage request receiving unit 263, the presence authentication unit 265 identifies the identification information of the received passage request signal, and the identification information of the trigger signal stored as the authentication object identification information 251. ,. In the case where the identification information of the received passage request signal matches the identification information of the trigger signal, the presence authentication means 265 determines that the user of the portable terminal 10 is permitted to enter the security area by the validity verification means 264. Check whether the person is Then, when the presence verification means 265 determines that the user of the portable terminal 10 is a valid user by the validity verification means 264, the valid user whose presence of the user of the portable terminal 10 is in the public area is It is determined that The operation of the presence authentication means 265 will be described later in detail with reference to FIG.

  The passage permission means 266 determines whether or not the passage of the door 30 by the user of the portable terminal 10 is permitted based on the authentication result by the presence authentication means 265. The electric permission lock 31 is transmitted to the portable terminal 10. The passage permission means 266 permits passage of the user when the presence authentication means 265 determines that the user of the portable terminal 10 which has transmitted the passage request signal is a valid user who exists in the public area. An unlocking signal is transmitted to the electric lock 31 of the door 30 via the electric lock I / F unit 24. The electric lock 31 having received the unlocking signal unlocks the electric lock 31 of the door 30, so that the passage of the user is physically permitted. In addition, the passage permission means 266 transmits a passage permission signal to the portable terminal 10 via the wireless communication unit 21 in order to notify the user that passage is permitted. Here, the passage permission means 266 may notify the user of the portable terminal 10 that the passage is permitted by voice or chime. On the other hand, when the presence authentication means 265 does not determine that the user of the portable terminal 10 is a valid user who exists in the public area, the passage permission means 266 does not transmit the unlocking signal to the electric lock 31. The electric lock 31 of the door 30 remains locked, and the passage of the user is physically prohibited.

  When the passage permission means 266 permits the passage of the user of the portable terminal 10, the entry / exit recording means 267 uses the LAN communication unit 22 to record the entrance of the user to the security area (or the exit record from the public area). And sends it to the management device 40. The entry / exit recording means 267 generates an entry record having a trigger signal or identification information of the passage request signal when the passage permitting means 266 permits the user to pass, and stores it in the storage unit 25 as entry / exit record information 254 And transmits the stored entry / exit record information 254 to the management apparatus 40 via the LAN communication unit 22. When the authentication device 20 is installed on the back side of the door 30, the entry / exit recording means 267 records the exit record from the security area of the user in the entry / exit record information 254.

  FIG. 6 is a diagram showing an operation sequence of each device in the entry and exit management system 1. The operation of each device shown in FIG. 6 is realized by each means of the control unit of each device executing a computer program stored in the storage unit. For the details of each part and each means of each device, refer to the above description.

  First, the case where the portable terminal 10 is the portable terminal 10-1 existing in the public area on the front side of the door 30 will be described. (Steps S601 to S610)

  In the portable terminal 10-1, when the stationary detection unit 161 of the control unit 16 detects the stationary state of the user by the movement detection unit 12 by the trigger transmission unit 162, the user enters the security area of the entrance door 30. Since it is considered that the mobile device has stopped before, a trigger signal having the identification information (ID1) of the portable terminal identification information 151 read from the storage unit 15 is generated and transmitted to the authentication device 20 via the wireless communication unit 11 (step S601).

  In the authentication device 20, the trigger receiving unit 261 of the control unit 26 receives the trigger signal transmitted from the portable terminal 10-1 via the wireless communication unit 21, and the strength of the received trigger signal is equal to or greater than a predetermined threshold. It is determined whether the When the strength of the received trigger signal is equal to or higher than the threshold, the mobile terminal 10-1 can receive a wireless signal from the mobile terminal 10 with a strength equal to or higher than the threshold (hereinafter referred to as “receivable range”) It is considered that the user of the portable terminal 10-1 is stationary near the door 30 to enter the security area, because the user is located inside. Therefore, the trigger receiving unit 261 causes the storage unit 25 to store the identification information (ID1) of the trigger signal as the authentication target identification information 251, with the portable terminal 10-1 that has transmitted the trigger signal as the authentication target (S602). . Further, the authentication device 20 outputs the determination sound of the pattern indicated by the output determination sound pattern information 252 of the storage unit 25 from the sound output unit 23 to the front side of the door 30 for a predetermined period by the determination sound output unit 262 (step S603). ). If the strength of the received trigger signal is less than the threshold, the user of the portable terminal 10-1 is considered to be away from the door 30 outside the receivable range and is not willing to enter the security area, so the trigger is generated. The receiving unit 261 does not set the portable terminal 10-1 as an authentication target, and the determination sound output unit 262 does not output a determination sound.

  After transmitting the trigger signal to the authentication device 20, the portable terminal 10-1 starts measuring the determination sound output from the authentication device 20 by the determination sound measurement unit 163. That is, as long as the portable terminal 10 does not transmit the trigger signal, the determination sound measurement unit 163 does not start the measurement even if the surrounding sound is collected by the sound collection unit 13 or the sound is collected. . The determination sound measurement unit 163 analyzes the pattern of the surrounding sound collected by the sound collection unit 13 for a predetermined period of time, for example, for about 3 seconds, and the analyzed sound pattern is indicated by the collection determination sound pattern information 152 in the storage unit 15. It is determined whether the pattern is matched. If the patterns match, the determination sound measurement unit 163 extracts a portion where the pattern matches the collected sound determination sound pattern information 152 from the collected sound as a determination sound, and measures the sound pressure level of the extracted portion, It passes to the passage request transmission means 164. When the sound collected by the sound collection unit 13 does not match the pattern of the sound collection determination sound pattern information 152, the determination sound measurement unit 163 passes that the determination sound corresponding to the pattern can not be collected. The request transmission means 164 is notified. At this time, the determination sound measurement means 163 may pass to the passage request transmission means 164, for example, a sound pressure level of a determination sound obtained by measuring a value smaller than a threshold of the sound pressure level of a predetermined determination sound such as zero. Step S604). When the sound pressure level of the determination sound measured by the determination sound measurement unit 163 is equal to or higher than the threshold, the passage request transmission unit 164 authenticates the passage request signal having the identification information of the portable terminal identification information 151 via the wireless communication unit 11 It transmits to the apparatus 20 (step S605).

  FIG. 7 is a flowchart showing the operation of the passage request transmission (step S605 in FIG. 6) process of the portable terminal 10. The operation of the portable terminal 10 shown in FIG. 7 is realized by the passage request transmission unit 164 of the control unit 16 of the portable terminal 10 executing a computer program stored in the storage unit 15. For details of each unit and each means of the portable terminal 10, refer to the above description.

  The passage request transmission unit 164 determines whether the determination sound measurement unit 163 has collected a determination sound that matches the pattern of the collected sound determination sound pattern information 152 (step S 701), and the determination sound measured by the determination sound measurement unit 163. It is determined whether or not the sound pressure level of the threshold is equal to or higher than the threshold (step S702). The determination sound measurement unit 163 collects a determination sound that matches the pattern of the sound collection determination sound pattern information 152 (Yes in step S701), and the sound pressure level of the collected determination sound is equal to or higher than the threshold (step S702). In the case of Yes), the portable terminal 10-1 is a predetermined range (hereinafter referred to as a "sound collection possible range") in which the determination sound output from the authentication device 20 on the front side of the door 30 can be collected at a sound pressure level Located in). In this case, it is considered that the user of the portable terminal 10-1 is in the public area on the front side of the door 30 and is willing to pass through the door 30 to enter the security area. A passage request signal having the identification information (D2) of the portable terminal identification information 151 read out from 15 is generated and transmitted to the authentication device 20 via the wireless communication unit 11 (step S703). The passage request signal is a signal (authentication request signal) for requesting the authentication device 20 to perform authentication based on the identification information of the passage request signal to permit passage, and the sound pressure level of the collected judgment sound Is a signal (affirmative measurement result) indicating that the threshold value is greater than or equal to the threshold value. That is, the authentication device 20 receives the passage request signal as a positive measurement result that means that the sound pressure level of the determination sound collected by the portable terminal 10 is equal to or higher than the threshold. When the determination sound measurement means 163 can not collect the determination sound that matches the pattern of the sound collection determination sound pattern information 152 (No in step S701), or the sound pressure level of the collected determination sound is less than the threshold (step In step S702, the passage request transmission unit 164 considers that there is no intention to enter the security area because the user of the portable terminal 10-1 is not in the sound collection available area near the door in the public area, Do not send pass request signal.

  Returning to FIG. 6, in the authentication device 20, when the passage request receiving means 263 receives a passage request signal of strength above the threshold within a predetermined period (S606), the presence authentication means 265 identifies the identification of the received passage request signal. Based on the information (ID2), the user of the portable terminal 10-1 that has transmitted the passage request signal is authenticated (step S607).

  FIG. 8 is a flowchart showing the operation of the presence authentication (step S607 in FIG. 6) process of the authentication device 20. The operation of the authentication device 20 shown in FIG. 8 is realized by the presence authentication means 265 of the control unit 26 of the authentication device 20 executing a computer program stored in the storage unit 25. For details of each part and each means of the authentication device 20, refer to the above description.

  The presence authentication means 265 determines whether or not a predetermined period has passed (step S801), and if it is within the predetermined period (No in step S801), the passage request reception means 263 receives the passage from the portable terminal 10-1 It is determined whether the strength of the request signal is equal to or greater than a predetermined threshold (step S802). If the strength of the received passage request signal is equal to or greater than a predetermined threshold (Yes in step S802), the portable terminal 10-1 is located within the receivable range near the door 30. Therefore, the presence authentication means 265 considers that the user of the portable terminal 10 is near the door 30 and is willing to pass through the door 30, and proceeds to step S803 to continue the authentication. If the strength of the passage request signal is less than the threshold (No in step S802), the portable terminal 10-1 is at a position away from the door 30 outside the receivable range. Therefore, even if the portable terminal 10-1 is previously located within the receivable range and transmits a trigger signal with a strength higher than the threshold to the authentication apparatus 20, the presence authentication means 265 leaves the door 30 at this time. Since the user of the portable terminal 10-1 does not intend to pass through the door 30, the portable terminal 10 is not targeted for authentication, and the process returns to the beginning to receive a valid passing request signal (step S801).

  Next, the presence authentication means 265 determines whether the identification information (ID2) of the received passage request signal matches the identification information (ID1) of the trigger signal stored as the authentication object identification information 251 of the storage unit 25. Is determined (step S803). If the identification information (ID2) of the passage request signal matches the identification information (ID1) of the trigger signal (Yes in step S803), the portable terminal 10-1 which has transmitted the trigger signal before responds to the trigger signal. It is considered that the determination sound output from the authentication device 20 is collected at a sound pressure level equal to or higher than a threshold to transmit a traffic request signal. For this reason, in the presence authentication means 265, the user of the portable terminal 10-1 which previously transmitted the trigger signal is within the sound collection available range near the door 30 within the public area on the front side of the door 30, It is considered that there is an intention to pass 30 and enter the security area, and the process proceeds to step S804 to continue the authentication. On the other hand, when the identification information (ID2) of the passage request signal does not match the identification information (ID1) of the trigger signal (No in step S803), the presence authentication means 265 indicates that the user of the portable terminal 10-1 is public. It is considered that there is no intention of passing the door 30 from the area and entering the security area, and the portable terminal 10-1 which has transmitted the passage request signal is returned to the top without setting it as an authentication target (step S801).

  Then, the presence authentication means 265 checks whether or not the user of the portable terminal 10-1 is a valid user who can enter the security area by the validity check means 264 (step S804). The validity verification means 264 determines that the identification information of the passage request signal matches the identification information of the registered user information 253 and the user of the portable terminal 10-1 is determined to be a valid user who can enter the security area. If it is determined that the user of the mobile terminal 10-1 is a valid user who exists in the public area (Yes in step S804), the presence authentication unit 265 determines that the user of the mobile terminal 10-1 is a valid user and ends the process. If it is determined that the user of the portable terminal 10-1 is not a valid user (No in step S804), the presence authentication means 265 returns to the beginning (step S801). When the predetermined period has passed (Yes in step S801), the presence authentication unit 265 uses the user of the portable terminal 10-1 that has transmitted the trigger signal having the identification information (ID1) in the public area. The process is ended on the assumption that the user can not be authenticated as a person (step S806).

  Returning to FIG. 6, in the authentication device 20, when the presence authentication means 265 determines that the user of the portable terminal 10-1 is a valid user who exists in the public area, the passage permission means 266 outputs an unlock signal. Are transmitted to the electric lock 31 of the door 30 via the electric lock I / F unit 24 (step S608). The electric lock 31 receiving the unlocking signal from the authentication device 20 unlocks the electric lock 31 for a predetermined period, and the user of the portable terminal 10-1 existing in the public area passes through the door 30 and enters the security area Physically allow things. Then, the passage permission means 266 transmits a passage permission signal to the portable terminal 10-1 to notify that the passage of the user of the portable terminal 10-1 is permitted (step S609). The portable terminal 10-1 having received the passage permission signal may prompt the user to pass by displaying on the screen that the passage is permitted or by outputting a chime or a voice. The passage permission means 266 may directly notify that the passage of the user of the portable terminal 10-1 is permitted by chime or voice, without transmitting the passage permission signal to the portable terminal 10-1. When the presence authentication means 265 can not determine that the user of the portable terminal 10-1 is a valid user who exists in the public area, the passage permission means 266 does not transmit the unlocking signal to the electric lock 31, so the door The thirty electric locks 31 remain locked. When the passage permission means 266 permits the passage of the user of the portable terminal 10, the entry / exit recording means 267 uses the entry record of the user of the portable terminal 10-1 in the security area as the entry / exit recording information 254 in the storage unit 25. The stored and stored entry / exit recording information 254 is transmitted to the management apparatus 40 via the LAN communication unit 22 (step S610).

  Next, the case where the portable terminal 10 is the portable terminal 10-2 present in the security area on the back side of the door 30 will be described. (Steps S611 to S615)

  When the user of the portable terminal 10-2 stops talking to another user, the stationary state detection unit 161 of the control unit 16 detects the stationary state of the user, so that trigger transmission is performed. The trigger signal having the identification information (ID 1 ′) of the portable terminal identification information 151 is generated by the means 162 and transmitted to the authentication device 20 via the wireless communication unit 11 (S611).

  In the authentication device 20, the trigger receiving unit 261 of the control unit 26 receives the trigger signal transmitted from the portable terminal 10-2 via the wireless communication unit 21, and the strength of the received trigger signal is equal to or greater than a predetermined threshold. It is determined whether the If the strength of the received trigger signal is equal to or higher than the threshold, it is considered that the user of the portable terminal 10-2 is stationary within the receivable range near the door 30 to enter the security area, so the trigger signal The identification information (ID 1 ′) of the trigger signal is stored in the storage unit 25 as the identification object identification information 251 (S612). Further, the authentication device 20 outputs the determination sound of the pattern indicated by the output determination sound pattern information 252 of the storage unit 25 from the sound output unit 23 to the front side of the door 30 for a predetermined period by the determination sound output unit 262 (step S613). ). If the strength of the received trigger signal is less than the threshold, it is considered that the user of the portable terminal 10-2 is away from the door 30 out of the receivable range and is not willing to enter the security area. The receiving unit 261 does not set the portable terminal 10-2 as an authentication target, and the determination sound output unit 262 does not output a determination sound.

  After the trigger transmission unit 162 transmits the trigger signal to the authentication device 20, the portable terminal 10-2 starts measurement of the determination sound by the determination sound measurement unit 163 (step S614). The judgment sound measurement means 163 analyzes the surrounding sound collected by the sound collection unit 13 for a predetermined period, measures the sound pressure level of the judgment sound whose pattern matches the sound collection judgment sound pattern information 152, and passes the measurement result. It passes to the request sending means 164.

  Referring back to FIG. 7, the passage request transmission unit 164 determines whether the determination sound measurement unit 163 has collected a determination sound that matches the pattern of the collected sound determination sound pattern information 152 (step S 701), and determines the determination sound. It is determined whether the sound pressure level of the determination sound measured by the means 163 is equal to or higher than a threshold (step S702). Here, since the portable terminal 10-2 exists outside the sound collection possible range on the back side of the door 30, the sound pressure level of the determination sound measured by the determination sound measurement means 163 becomes equal to or higher than a predetermined threshold value Absent. If the collected sound is not a judgment sound (No in step S703) or the sound pressure level of the judgment sound is less than a predetermined threshold (No in step S704), the user of the portable terminal 10-2 is a door Since it is considered that there is no intention to enter the security area in the security area on the back side of 30, the passage request transmission means 164 does not transmit the passage request signal to the authentication device 20 (step S706). For this reason, since the authentication device 20 does not receive the passage request signal from the portable terminal 10-2, the user of the portable terminal 10-2 located behind the door is excluded from the authentication target. Therefore, according to the present invention, even if the portable terminal 10-2 is located within the receivable range near the door 30, if the portable terminal 10-2 is within the security area on the back side of the door 30, this portable terminal 10-2 The user of the user is authenticated as a valid user to prevent the electric lock 31 of the door 30 from being unlocked by mistake.

  According to the room access control system 1 according to the present invention described above, the judgment sound is output / collected between the portable terminal 10 and the authentication device 20, and the judgment sound is collected at a sound pressure level equal to or higher than the threshold. The authentication device 20 authenticates the user of the portable terminal 10 only in the case. Therefore, since the authentication device 20 authenticates only the user of the portable terminal 10 existing in the public area on the front side of the same door 30 as the authentication device 20, a valid user who exists in the same area as the authentication device 20. Authentication accuracy can be improved. In addition, the user of the portable terminal 10-2 present in the security area on the back side of the door 30 is erroneously authenticated, and the electric lock 31 of the door 30 is unlocked to prevent an unauthorized user from entering the security area. Since it can do, the security of the access control system 1 can be improved.

  In addition, if the identification information possessed by the trigger signal received first from the portable terminal 10 and the identification information possessed by the passing request signal received thereafter do not match, the authentication device 20 authenticates the user of the portable terminal 10 And not. As a result, authentication is performed only when the mobile terminal 10 that transmitted the trigger signal and the mobile terminal 10 that transmitted the passage request signal are the same. Therefore, the accuracy of authentication is further improved, and the security of the room access control system 1 is improved. It can be further improved.

  In addition, the portable terminal 10 does not collect surrounding sound in the sound collection unit 13 unless it transmits a trigger signal. As a result, it is possible to prevent the surrounding sound from being transmitted and transmit the traffic request signal based on the sound collection result even though the trigger signal is not transmitted, so the intention to enter the security area is Only certain things can be authenticated.

  Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments.

  In the above embodiment, the portable terminal 10 determines whether the measured sound pressure level of the determination sound is equal to or higher than the threshold, and transmits the passage request signal when the threshold is equal to or higher than the threshold. Although the passage request signal is received as a positive measurement result that means that the sound pressure level of the determination sound is equal to or higher than the threshold value, the positive measurement result may be added to the passage request signal. For example, when the sound pressure level of the determination sound measured is equal to or higher than the threshold, the portable terminal 10 has a passing request having the identification information of the own terminal and the positive measurement result that the sound pressure level of the determination sound is higher than the threshold A signal may be generated and wirelessly transmitted to the authentication device 20. The authentication device 20 acquires the identification information and the positive measurement result included in the received passage request signal, and when the identification information matches the identification information of the trigger signal and the registered identification information, the passage of the user of the portable terminal 10 And the electric lock 31 may be unlocked.

  In the above embodiment, the portable terminal 10 determines whether the measured sound pressure level of the determination sound is equal to or higher than the threshold, and transmits the passage request signal based on the determination result. Although it has been determined whether or not the person is to be the authentication target, the portable terminal 10 may not determine the sound pressure level of the determination sound. For example, the portable terminal 10 may measure only the sound pressure level of the determination sound, and may transmit a passage request signal including the measurement result of the sound pressure level and identification information of itself to the authentication device 20. The authentication device 20 determines whether the measurement result of the sound pressure level of the traffic request signal received from the portable terminal 10 is equal to or higher than a predetermined sound pressure level threshold, and the measurement result of the sound pressure level is equal to or higher than the threshold And when the identification information of the passage request signal matches the identification information of the trigger signal and the registered identification information, the passage of the user of the portable terminal 10 is permitted and the electric lock 31 is unlocked. Good.

  In the above embodiment, the authentication device 20 determines whether or not the identification information stored when the trigger signal is received from the portable terminal 10 matches the identification information included when the passage request signal is received. It is not necessary to make this determination. For example, the authentication device 20 may permit passage by determining whether the identification information included in either the trigger signal or the passage request signal matches the registered identification information. For example, when the authentication device 20 receives the trigger signal, it outputs only the determination sound, and the identification information when the passage request signal is received matches the registered identification information, and the sound pressure level is equal to or higher than the threshold. If there is, allow the passage. In this case, either the trigger signal or the traffic request signal may have identification information.

  In the above embodiment, the authentication device 20 outputs the determination sound of the pattern stored in the storage unit 25, but may output the determination sound of a different pattern for each portable terminal 10. In this case, in the authentication device, the storage unit 25 stores in advance the pattern of the determination sound to be output for each identification information of the portable terminal 10, and the pattern of the determination sound from the storage unit 25 corresponding to the identification information of the received trigger signal. The determination sound of the read pattern may be output. The portable terminal 10 confirms that the pattern of the collected sound is the pattern of the determination sound unique to the own terminal stored in the storage unit 15, and based on the result of measuring the sound pressure level of the confirmed determination sound. A passage request signal may be sent to the authentication device 20. In this case, the authentication device 20 may not determine whether the identification information of the trigger signal matches the identification information of the passage request signal, and only one of the trigger signal and the passage request signal may have the identification information.

  Although the trigger signal is transmitted to the authentication device 20 when the mobile terminal 10 detects the user's stationary state in the above embodiment, the present invention is not limited to this. For example, when the portable terminal 10 receives an operation such as unlocking the liquid crystal panel or tapping an application from the user, the portable device 10 receives a predetermined wireless signal transmitted by the authentication device 20 at regular intervals. When the portable terminal 10 receives a predetermined wireless signal transmitted in response to an operation such as pressing a provided button, or the portable terminal 10 outputs a predetermined determination sound output by the authentication device 20 in response to the operation. The trigger signal may be transmitted to the authentication device 20 when, for example, sound is collected.

  In the above embodiment, the authentication device 20 outputs the determination sound, and the mobile terminal 10 measures the sound pressure level of the determination sound. However, the mobile terminal 10 outputs the determination sound, and the authentication device 20 outputs the sound pressure level of the determination sound May be measured. In this case, the portable terminal 10 has a sound output unit (not shown) such as a speaker, and the authentication device 20 has a sound collection unit (not shown) such as a microphone. When the trigger signal is received, a determination sound may be output from the sound output unit, and the authentication device 20 may collect the determination sound output from the portable terminal by the sound collection unit and measure the sound pressure level thereof. In this case, the authentication device 20 determines whether the measured sound pressure level of the determination sound is equal to or higher than the threshold, and if determined to be equal to or higher than the threshold, the determination result is obtained as a positive measurement result. Good. In this case, for example, the authentication device 20 may always transmit a trigger signal to the portable terminal 10 at constant intervals, or may transmit a trigger signal by pressing a button or the like of the authentication device 20.

  In the above embodiment, the door 30 having the electric lock 31 is installed between the public area and the security area, but the door 30 may not be provided. For example, for two areas physically separated by a wall or the like, the user of the portable terminal 10 is present on either side of the two areas using the determination sound and the wireless signal as in the above embodiment. You may determine whether to authenticate and authenticate. Thus, the authentication device 20 is installed everywhere in a building having a plurality of areas, and the position of each user can be grasped by authenticating which area the user of the mobile terminal 10 is in. If, for example, the sound pressure level of the determination sound that arrives between the areas decreases by a certain amount or more due to the directivity of the determination sound, the output direction, or the like, it is not necessary to install a wall or the like between the areas.

  The present invention can be applied to various authentication devices and portable terminal programs in a room access control system, an authentication system, a position detection system, and the like.

DESCRIPTION OF SYMBOLS 1 entry and exit management system, 10 portable terminal, 11 wireless communication unit, 12 detection unit, 13 sound collection unit, 14 operation / display unit, 15 storage unit, 16 control unit, 20 authentication unit, 21 wireless communication unit, 22 communication unit , 23 sound output unit, 24 electric lock I / F unit, 25 storage unit, 26 control unit, 30 door, 31 electric lock, 40 management device, 90 wide area network, 151 portable terminal identification information, 152 sound collection judgment sound pattern information , 161 stillness detection means, 162 trigger transmission means, 163 judgment sound measurement means, 164 passage request transmission means, 251 authentication target identification information, 252 output judgment sound pattern information, 253 registered user information, 254 entry and exit record information, 261 trigger Reception means, 262 Judgment sound output means, 263 Passing request reception means, 264 Legitimacy verification means, 265 Presence verification means , 266 transit permits means, 267 entrance and exit recording means

Claims (9)

A portable terminal that exists in any of the adjacent first area and second area and carried by the user;
An authentication system comprising: an authentication device which is present in the first area and which authenticates that the user of the portable terminal is a valid user who is present in the first area,
One of the portable terminal and the authentication device has a determination sound output unit that outputs a determination sound,
The other of the portable terminal and the authentication device has a determination sound measurement unit that collects the determination sound output from the one device and measures a sound pressure level,
The portable terminal is
The authentication request transmission unit wirelessly transmits an authentication request signal having identification information of the portable terminal to the authentication device,
The authentication device
Measurement result acquisition means for acquiring a positive measurement result that the sound pressure level of the judgment sound is equal to or higher than the threshold when the sound pressure level of the judgment sound measured by the judgment sound measurement means is equal to or higher than the threshold;
Legitimacy verification means for determining whether or not the user of the portable terminal is authorized based on the identification information of the authentication request signal transmitted from the portable terminal;
If the measurement result acquisition unit acquires the positive measurement result and the validity check unit determines that the user of the portable terminal is valid, the user of the portable terminal is in the first area An authentication system, comprising: presence authentication means for determining that there is a valid user. The other device is
It further comprises trigger transmission means for wirelessly transmitting a trigger signal to the one device based on a predetermined trigger condition,
The authentication system according to claim 1, wherein the determination sound output unit outputs the determination sound when the trigger signal is received from the other device. The one device is the authentication device, and the other device is the portable terminal.
The authentication request transmission unit wirelessly transmits the authentication request signal to the authentication device if the sound pressure level of the determination sound measured by the determination sound measurement unit is equal to or higher than a threshold.
The authentication system according to claim 2, wherein the measurement result acquisition unit acquires the authentication request signal received from the authentication request transmission unit as the positive measurement result. The trigger transmission means transmits the trigger signal having identification information of the portable terminal to the authentication device.
The presence authentication means collates the identification information possessed by the trigger signal received by the authentication device with the identification information possessed by the authentication request signal, and in the case of coincidence, the user of the portable terminal is present in the first area The authentication system according to claim 3, wherein the authentication system is determined to be a valid user. The authentication device includes a storage unit that stores output determination sound pattern information representing determination sound of a pattern corresponding to identification information of each portable terminal.
The determination sound output means outputs a determination sound of a pattern corresponding to identification information included in the received trigger signal based on the stored output determination sound pattern information.
The portable terminal includes a storage unit storing sound collection determination sound pattern information representing determination sound of a pattern set in the own terminal;
The authentication system according to claim 3 or 4, wherein said determination sound measurement means measures a sound pressure level by extracting a determination sound of a pattern represented by said stored sound collection determination sound pattern information from said collected determination sound. .   The said determination sound measurement means collects and measures the said determination sound in the predetermined period after the said trigger transmission means transmits the said trigger signal, It is described in any one of Claims 3-5. Authentication system. The portable terminal further comprises a stationary detection means for detecting the stationary state of the walking motion of the user,
The authentication system according to any one of claims 3 to 6, wherein the trigger transmission means wirelessly transmits the trigger signal to the authentication device when the stillness detection means detects a stillness of the walking motion. The portable terminal which exists in any one of the adjacent first area and second area and carried by the user is present in the first area in the authentication device in which the portable terminal carried by the user is present in the first area A portable terminal program that executes processing for requesting authentication of an existing valid user, the portable terminal comprising:
Collecting the judgment sound output from the authentication device and measuring the sound pressure level;
If the measured sound pressure level is equal to or higher than a threshold value, an authentication request signal having identification information of the portable terminal is wirelessly transmitted to the authentication device to request that the user of the portable terminal be authenticated. Mobile terminal program. The one device is the portable terminal, and the other device is the authentication device.
The measurement result acquisition unit determines whether the sound pressure level of the determination sound measured by the determination sound measurement unit is equal to or higher than a threshold, and acquires the determination result as the positive measurement result if it is equal to or higher than a threshold. The authentication system according to Item 1 or 2.

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