JP7037355B2 - Authentication system and authentication device - Google Patents

Description

The present invention relates to an authentication system and an authentication device.

In an entry / exit management system that physically regulates entry from public areas to security areas, hands-free authentication is performed without the user touching or holding an ID card or the like with a reader, and passage is permitted. Some door electric locks are unlocked. In the room entry / exit management system described in Patent Document 1, a signal having user ID information is transmitted on a radio wave from a mobile terminal such as a wireless tag away from the door, and a tag reader near the door receives the radio wave. ID information is acquired and the electric field strength of radio waves is measured. The authentication device of the entrance / exit management system has the ID information acquired by the tag reader registered in advance, and if the electric field strength is larger than the predetermined value, it is determined that the user can pass through and the electric lock of the door is unlocked. do.

Japanese Unexamined Patent Publication No. 2012-219483

In the above-mentioned entry / exit management system, the door to be unlocked can be selected based on the operation on the wireless tag side, but since the radio wave has high transparency, the radio wave of the wireless tag may pass through the door or the wall. That is, the authentication device receives both the radio wave from the wireless tag possessed by the user in the public area and the radio wave from the wireless tag possessed by the user in the security area with an electric field strength larger than a predetermined value, and the electric lock. Will be unlocked. For this reason, it may be difficult for the entry / exit management system to determine whether the user who operates the wireless tag, that is, the user to be authenticated is inside or outside the room which is the security area. rice field. Therefore, when authentication is performed for both entry and exit, there is a risk that the direction of entry and exit may be erroneously determined.

An object of the present invention is to provide an authentication system and an authentication device capable of determining the position of a user to be authenticated.

The authentication system according to the present invention includes a mobile terminal carried by a user and an authentication device for certifying that the user of the mobile terminal is a user existing in an adjacent first area or second area. In the system, the mobile terminal uses a sound collecting means for collecting ambient sounds, a sound analysis means for analyzing the collected sound by the sound collecting means, and an authentication request signal including identification information of the mobile terminal by the sound analysis means. It has an authentication request transmission means for wirelessly transmitting to the authentication device together with the analysis result of the collected sound, and the authentication device outputs the first judgment sound to the first area and the second area is different from the first judgment sound. 2 Validity verification to determine whether or not the user of the mobile terminal is a legitimate user based on the identification sound output means for outputting the determination sound and the identification information included in the authentication request signal transmitted from the mobile terminal. When the means and the validity verification means determine that the user of the mobile terminal is a legitimate user, and the analysis result indicates that the mobile terminal has collected the first determination sound, the mobile terminal is concerned. The user is authenticated as a legitimate user existing in the first area, the legitimacy verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result is that the mobile terminal is the first. (2) When indicating that the determination sound has been collected, the user of the mobile terminal has an existence authentication means for certifying that the user is a legitimate user existing in the second area.

In the authentication system according to the present invention, it is preferable that the sound analysis means analyzes whether the collected sound includes the first determination sound or the second determination sound.

In the authentication system according to the present invention, when the existence authentication means determines that the user of the mobile terminal exists in the first area, the authentication device permits the user of the mobile terminal to pass from the first area to the second area. However, when the existence authentication means determines that the user of the mobile terminal exists in the second area, it is preferable to further have a passage permission means for permitting the user of the mobile terminal to pass from the second area to the first area. ..

In the authentication system according to the present invention, the authentication device outputs the second determination sound from the determination sound output means after a predetermined time has elapsed after the existence authentication means authenticates that the user of the mobile terminal exists in the first area. Then, when it is authenticated that the user of the mobile terminal exists in the second area based on the second determination sound, the passage direction determination means for determining that the user has moved from the first area to the second area. It is preferable to have more.

In the authentication system according to the present invention, the sound analysis means analyzes the sound pressure levels of the first determination sound and the second determination sound included in the collected sound, and the existence authentication means has the validity verification means of the mobile terminal. When it is determined that the user is a legitimate user and the analysis result indicates the first determination sound whose sound pressure level is equal to or higher than the threshold value, the user of the mobile terminal is a legitimate user existing in the first area. When it is authenticated that the person is a person, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result indicates a second judgment sound whose sound pressure level is equal to or higher than the threshold value. It is preferable that the user of the mobile terminal is authenticated as a legitimate user existing in the second area.

In the authentication system according to the present invention, the mobile terminal further includes a trigger transmission means for wirelessly transmitting a trigger signal including identification information of the mobile terminal to the authentication device based on a predetermined trigger condition, and the determination sound output means is portable. When the trigger signal is received from the terminal, the first judgment sound is output to the first area and the second judgment sound is output to the second area, and the existence authentication means is included in the identification information and the authentication request signal included in the received trigger signal. It is preferable to authenticate that the user of the mobile terminal is a legitimate user on condition that the identification information is matched.

The authentication device according to the present invention outputs a first judgment sound as a judgment sound in the first area, and outputs a second judgment sound different from the first judgment sound in the second area adjacent to the first area. Means, legitimacy verification means for determining whether or not the user of the mobile terminal is a legitimate user based on the identification information included in the authentication request signal transmitted from the mobile terminal carried by the user, and legitimacy. When the sex verification means determines that the user of the mobile terminal is a legitimate user, and the collected sound collected by the sound collecting means of the mobile terminal is the first determination sound, the user of the mobile terminal concerned It is authenticated that the user is a legitimate user existing in the first area, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the sound collecting means of the mobile terminal collects sound. When the collected sound is the second determination sound, the user of the mobile terminal has an existence authentication means for certifying that the user is a legitimate user existing in the second area.

According to the authentication system and the authentication device according to the present invention, the position of the user to be authenticated can be accurately determined.

This is an example of an overall configuration diagram of the room entry / exit management system 1 according to an embodiment of the present invention. It is an example of the block diagram of the mobile terminal 10 which concerns on one Embodiment of this invention. It is an example of the block diagram of the authentication apparatus 20 which concerns on one Embodiment of this invention. It is a figure which shows an example of the operation sequence of each apparatus in the entrance / exit management system 1. It is a flowchart which shows an example of the sound measurement and analysis processing in a mobile terminal 10. It is a flowchart which shows an example of the authentication process (S108 of FIG. 5) of the authentication apparatus 20. It is an example of the block diagram of the mobile terminal 10'corresponding to the 1st modification. It is an example of the block diagram of the authentication apparatus 20'corresponding to the 1st modification. It is a figure which shows an example of the operation sequence of each apparatus in the entrance / exit management system 1'related to the 1st modification. It is a flowchart which shows an example of the traffic direction determination processing in the authentication apparatus 20'.

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

FIG. 1 is an overall configuration diagram of an entry / exit management system 1 according to an embodiment of the present invention.

As shown in FIG. 1, the room entry / exit management system 1 includes a mobile terminal 10, an authentication device 20, a door 30, and a management device 40. The room A on the front side of the door 30 and the room B on the back side of the door 30 are adjacent to each other and are separated by the door 30 and the wall. Room A may be referred to as a public area or first area, and room B may be referred to as a security area or second area.

The mobile terminal 10 is a mobile information processing device such as a smartphone that is carried by a user (human, robot, etc.) and moves with the user. The mobile terminal 10 can detect the stationary movement of the mobile terminal 10 itself and perform wireless communication with the authentication device 20. The mobile terminal 10 can collect the determination sound output from the authentication device 20, measure the sound pressure level (intensity of each frequency in the determination sound), and analyze the determination sound. FIG. 1 shows the mobile terminal 10-1 existing in the room A on the front side of the door 30 and the mobile terminal 10-2 existing in the room B on the back side of the door 30 with respect to the mobile terminal 10. , The position of the mobile terminal 10 is not limited to this. The mobile terminal 10 located within a certain range around the authentication device 20 can perform wireless communication with the authentication device 20 with a signal strength of a certain level or higher.

When the mobile terminal 10 detects that the user carrying the mobile terminal 10 is stationary, the mobile terminal 10 transmits a trigger signal including identification information uniquely identifying the mobile terminal 10 or the user carrying the mobile terminal 10 to the authentication device 20. After transmitting wirelessly, the surrounding sounds are collected for a predetermined period. If the sound pressure level of the collected sound collected is equal to or higher than a certain level, the mobile terminal 10 wirelessly transmits a passage request signal (authentication request signal) including the identification information to the authentication device 20.

The authentication device 20 is an information processing device that performs wireless communication with the mobile terminal 10, outputs a determination sound, and authenticates the user of the mobile terminal 10. The authentication device 20 receives the first determination sound that reaches within a certain range on the front side of the door 30 at a certain sound pressure level or higher, and the second determination sound that reaches within a certain range on the back side of the door 30 at a certain sound pressure level or higher. Sound can be output. However, since these determination sounds hardly pass through the door 30, they do not reach the opposite side of the door 30 at the constant sound pressure level. Further, the authentication device 20 is communicatively connected to the electric lock 31 so that the opening and closing of the electric lock 31 of the door 30 can be controlled. Further, the authentication device 20 is connected to the management device 40 via the local and / or wide area network 90.

When the authentication device 20 wirelessly receives the trigger signal from the mobile terminal 10, the authentication device 20 outputs the first determination sound of a predetermined pattern to the front side of the door 30 and the second determination sound of another predetermined pattern to the back side of the door 30. ..

The authentication device 20 determines whether or not the analysis result of the sound transmitted from the mobile terminal 10 matches the determination sound output by the authentication device 20. Based on the determination result of the determination sound, the authentication device 20 determines whether the user of the mobile terminal 10 exists in the room A or the room B. The authentication device 20 receives a traffic request signal including identification information from the mobile terminal 10, and if the identification information included in the traffic request signal is a legitimate user, the user of the mobile terminal 10 can enter the room. It is determined that the user is a legitimate user who can enter B. When the sound analysis result matches the determination sound output by the authentication device 20, and the user of the mobile terminal 10 is a legitimate user who can enter the room B, the authentication device 20 is the mobile terminal 10. Is authenticated as a legitimate user existing in room A or room B.

When the user of the mobile terminal 10 is authenticated, the authentication device 20 physically permits the user to pass by transmitting an unlock signal to the electric lock 31 of the door 30 to unlock the user. When permitting the passage of the user, the authentication device 20 notifies the mobile terminal 10 that the passage is permitted, and the entry record of the user of the mobile terminal 10 to the room B is recorded by the management device 40 via the wide area network 90. Send to.

The door 30 is installed between the room A and the room B, and physically restricts the passage of the user between the room A and the room B by unlocking or locking the electric lock 31. The door 30 physically prohibits the user from passing between the room A and the room B by keeping the electric lock 31 locked at all times, and when the unlocking signal is received from the authentication device 20, the electric lock 31 is used. Is unlocked for a predetermined period of time to allow the user to pass through the door 30. The sound pressure level of the sound that reaches from the room A on the front side of the door 30 to the room B on the back side or in the opposite direction decreases by a certain amount or more because the sound transmission is lower than that of the radio wave. In this case, the room. It is expressed that the sound is blocked between A and room B.

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

As described above, in the room entry / exit management system 1 according to the embodiment of the present invention, it is determined that the user of the mobile terminal 10 is legitimate, and the sound collected by the mobile terminal 10 is the first determination. When it is a sound or a second determination sound, the user of the mobile terminal 10 is authenticated as a legitimate user existing in the first area or the second area. Here, if the same determination sound is output to the first area and the second area at the same timing, the mobile terminal collects the determination sound output to either the first area or the second area. It is difficult to determine whether the user is in the first area or the second area because it is unknown. In addition, the judgment sound is not output to both areas, but the judgment sound is output only to one of the first areas to determine whether the user is in the first area or the second area. When trying to authenticate, it is unknown whether the judgment sound was collected from a distance from the door 30 in the first area or from the vicinity of the door 30 in the second area, so the user moved to the first area. It is difficult to determine whether you are in the second area or not. According to the room entry / exit management system 1, the position of the user to be authenticated can be accurately determined.

<First Embodiment>
FIG. 2 is an example of a configuration diagram of a mobile terminal 10 according to an embodiment of the present invention. As shown in FIG. 2, 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.

<Hardware of mobile terminal 10>
The wireless communication unit 11 is a wireless communication interface that performs wireless communication with the authentication device 20. The wireless communication unit 11 can communicate using a protocol corresponding to the wireless communication protocol of the authentication device 20, such as BLE (Bluetooth (registered trademark) Low Energy), ZigBee (registered trademark), and Wi-Fi (registered trademark). The wireless communication unit 11 converts the data or signal received from the control unit 16 and puts it on the radio wave and transmits it to the authentication device 20, converts the radio wave received from the authentication device 20 into data or a signal, and passes it to the control unit 16. .. Further, 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 has an acceleration sensor, a gyro sensor, and the like, and is a sensor that detects the motion of the mobile terminal 10. The motion detection unit 12 passes motion information regarding the detected motion of the mobile terminal 10 to the control unit 16.

The sound collecting unit 13 has a microphone capable of collecting audible sound, and collects the sound around the mobile terminal 10. The sound collecting unit 13 can collect the determination sound, and may have an ultrasonic detector or the like that collects a sound higher than the audible sound in place of the microphone or together with the microphone. The sound collecting unit 13 sends the collected sound to the control unit 16.

The operation / display unit 14 has a touch panel that combines a touch pad and a screen such as a liquid crystal display or an organic EL (Electro-Luminescence) display. The operation / display unit 14 may have buttons, keys, a microphone, and the like. The operation / display unit 14 has an operation unit for the user to input instructions and data to the mobile terminal 10 and a display unit for showing the user the operating state and processing result of the mobile terminal 10, but the operation unit and the display unit 14 A device separate from the display unit may be used. 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 the code and data of the computer program executed in the mobile terminal 10. For example, the storage unit 15 has semiconductor memories such as RAM, ROM, and EPROM. The storage unit 15 may have any type of storage device such as a flash memory, a magnetic storage device, and an optical storage device.

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

The storage unit 15 stores the mobile terminal identification information 151 and the sound collection determination sound pattern information 152. The mobile terminal identification information 151 and the sound collection determination sound pattern information 152 are set by the user of the mobile terminal 10 or the administrator of the room entry / exit management system 1, and are stored in advance in the storage unit 15. The mobile terminal identification information 151 and the sound collection determination sound pattern information 152 may be provided in any computer-readable storage medium or communication line and stored in advance in the storage unit 15.

The mobile terminal identification information 151 is identification information that uniquely identifies the mobile terminal 10 or the user who carries the mobile terminal 10. For example, the mobile terminal identification information 151 includes identification information such as a serial number or identification number unique to the mobile terminal 10, or an employee number or individual number assigned to an individual user carrying the mobile terminal 10. This identification information is transmitted to the authentication device 20 by a trigger signal and a traffic request signal, and is used in the authentication device 20 to authenticate the validity of the user who carries the mobile terminal 10.

The sound collection determination sound pattern information 152 is information representing the pattern of the determination sound output by the authentication device 20. The mobile terminal 10 can determine whether or not the collected sound includes the determination sound by using the sound collection determination sound pattern information 152. Here, the determination sound output by the authentication device 20 is a synthetic sound using a specific frequency, and the sound collection determination sound pattern information 152 is, for example, a frequency spectrum obtained by analyzing this synthetic sound. In the present embodiment, different synthetic sounds are used for the first determination sound output to the first area and the second determination sound output to the second area by the authentication device 20, and the storage unit 15 uses the first determination sound and the first determination sound. 2 The frequency spectrum corresponding to each determination sound pattern of the determination sound is stored as the sound collection determination sound pattern information 152. When a specific melody is used as the determination sound, the determination sound pattern consisting of a series of notes representing the melody is referred to as the sound collection determination sound pattern information 152. The sound collection determination sound pattern information 152 may have a plurality of sets of a determination sound pattern and a determination sound identifier that can identify the determination sound pattern.

The control unit 16 includes a stationary detection means 161, a trigger transmission means 162, a sound collection means 163, a sound analysis means 165, and a passage request transmission means 166 (authentication request transmission means). Each of these means is a functional module implemented by executing a computer program stored in the storage unit 15 on a processor included in the control unit 16.

<Software of mobile terminal 10>
The stationary detection means 161 receives motion information regarding the motion of the mobile terminal 10 from the motion detecting unit 12, and based on the received motion information, whether the user carrying the mobile terminal 10 is in a stationary state or a walking state. Is detected. For example, when the stationary detection means 161 indicates that the motion information of the mobile terminal 10 received from the motion detecting unit 12 is stationary for a predetermined stationary period such as 1 second, the stationary detecting means 161 detects the stationary state of the user. Then, the trigger transmission means 162 is notified. In other cases, the stationary detection means 161 detects a walking state in which a passerby is walking. The predetermined stationary period, which is a reference for the stationary detecting means 161 to detect the stationary of the mobile terminal 10, may be arbitrarily changed by the user.

The trigger transmission means 162 reads out the identification information of the mobile terminal identification information 151 stored in the storage unit 15, generates a trigger signal including this identification information, and wirelessly transmits it to the authentication device 20 via the wireless communication unit 11.

The sound collecting means 163 controls the sound collecting unit 13 to collect sound in a predetermined period. The sound collecting means 163 can collect the determination sound output by the authentication device 20.

The sound analysis means 165 analyzes the collected sound collected by the sound collecting means 163. The sound analysis means 165 determines whether or not the analyzed collected sound pattern matches the judgment sound pattern possessed by the sound collection judgment sound pattern information 152, and analyzes the judgment sound identifier corresponding to the matching judgment sound pattern. Output as a result. Specifically, the sound analysis means 165 converts the analog sound collected by the sound collecting unit 13 into a digital sound, performs spectral analysis to obtain the intensity for each frequency by Fourier conversion, and performs the first determination sound and the second. Detects the intensity of the frequency corresponding to the judgment sound. Then, if the intensity of the frequency corresponding to the first determination sound is equal to or higher than a predetermined threshold value, it is determined that the collected sound includes the first determination sound, and the determination sound identifier indicating the first determination sound is output as the analysis result. Further, if the intensity of the frequency corresponding to the second determination sound is equal to or higher than a predetermined threshold value, it is determined that the collected sound includes the second determination sound, and the determination sound identifier indicating the second determination sound is output as the analysis result. When the sound analysis means 165 detects an intensity equal to or higher than the threshold value at a frequency corresponding to both the first determination sound and the second determination sound, the sound analysis means 165 compares the respective intensities and only the high intensity determination sound is detected. Judged as being included in the collected sound.

The threshold value of the sound pressure level is predetermined based on the value of the sound pressure level at which the mobile terminal 10 located within a predetermined range around the door 30 can collect the determination sound from the authentication device 20. The threshold value of the sound pressure level is based on the minimum value that the sound pressure level of the determination sound collected from the authentication device 20 can be taken by the mobile terminal 10 in a state where there is no obstacle such as a door 30 between the mobile terminal 10 and the authentication device 20. May be determined. In the predetermined range, the distance from the door 30 is 3 m or less, more preferably 1 m or less.

The passage request transmission means 166 generates a passage request signal having the identification information of the mobile terminal identification information 151 stored in the storage unit 15 and the analysis result by the sound analysis means 165 to the authentication device 20 via the wireless communication unit 11. Send wirelessly.

The passage request transmission means 166 does not transmit the analysis result by the sound analysis means 165 in the passage request signal, and even if the analysis result by the sound analysis means 165 is wirelessly transmitted to the authentication device 20 by an analysis result signal different from the passage request signal. good. When the analysis result is wirelessly transmitted by the analysis result signal, at least one of the traffic request signal and the analysis result signal has an identifier that can uniquely identify the other signal, and the authentication device 20 processes both signals in association with each other. It is preferable to be able to do it.

FIG. 3 is an example of a configuration diagram of the authentication device 20 according to the embodiment of the present invention. As shown in FIG. 3, the authentication device 20 includes a wireless communication unit 21, a communication unit 22, a sound output unit 23, an electric lock I / F unit 24, a storage unit 25, and a control unit 26.

<Hardware of authentication device 20>
The wireless communication unit 21 is a wireless communication interface that performs wireless communication with the mobile terminal 10. The wireless communication unit 21 can communicate using a protocol corresponding to the wireless communication protocol of the mobile terminal 10, such as BLE, ZigBee, and Wi-Fi. The wireless communication unit 21 converts the data or signal received from the control unit 26, puts it on a radio wave and transmits it to the mobile terminal 10, converts the radio wave received from the mobile terminal 10 into data or a signal, and passes it to the control unit 26. .. Further, 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 communication unit 22 is a communication interface that communicates with the management device 40 via the local area network (LAN) to which the authentication device 20 is connected and / or the wide area network 90. For example, the communication unit 22 may perform wired / wireless communication via a LAN to which the authentication device 20 is connected, and may transmit / receive data to / from the management device 40 via a wide area network such as the Internet to which the LAN is connected. can. In this case, the communication unit 22 can communicate by a wired / wireless communication protocol of a LAN to which the authentication device 20 is connected, such as Ethernet (registered trademark) (Ethernet (registered trademark)) and WiFi. Communication between the authentication device 20 and the management device 40 may be performed in any communication form as long as data can be transmitted and received to each other. The communication unit 22 transmits the data received from the control unit 26 to the management device 40, and passes the data received from the management device 40 to the control unit 26.

The sound output unit 23 outputs sound to the front side of the door 30, that is, the public area, and the back side of the door 30, that is, the security area. In the present embodiment, an example in which the sound output unit 23 is incorporated in the authentication device 20 is shown, but the sound output unit 23 may be separated from the authentication device 20 and installed on the front surface of the door 30 or on the wall around the door 30. In this case, the sound output unit 23 can communicate with the authentication device 20 by wired / wireless communication.

The sound output unit 23 includes a first sound output unit 231 and a second sound output unit 232. The first sound output unit 231 has a speaker and outputs sound to the front side of the door 30, that is, to a public area. The second sound output unit 232 has a speaker and outputs sound to the back side of the door 30, that is, to the security area. The speaker can output audible sound. The first sound output unit 231 and / or the second sound output unit 232 may have an ultrasonic generator or the like that outputs a sound having a frequency higher than the audible sound in place of the speaker or together with the speaker.

The electric lock I / F unit 24 is an interface that is 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 the code and data of the computer program executed in the authentication device 20. For example, the storage unit 25 can have a semiconductor memory such as RAM, ROM, and EPROM. Further, the storage unit 25 may have any type of storage device such as a flash memory, a magnetic storage device, and an optical storage device.

The control unit 26 has a processor and peripheral circuits, and the processor realizes 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 the storage unit 25 in advance, and is provided by a computer-readable storage medium such as a flash memory, a magnetic storage medium, an optical storage medium, or a communication line, and is stored in the storage unit 25. It may be stored in. At least a part of the storage unit 25 and the control unit 26 may be composed of a microcontroller.

The storage unit 25 stores authentication target identification information 251, output determination sound pattern information 252, registered user information 253, and entry / exit record information 254. The output determination sound pattern information 252 and the registered user information 253 are set by the administrator of the room entry / exit management system 1 and are stored in advance in the storage unit 15. The output determination sound pattern information 252 and the registered user information 253 may be provided by any computer-readable storage medium or communication line and stored in the storage unit 25.

The authentication target identification information 251 temporarily stores information about the mobile terminal 10 to be authenticated by the authentication device 20, and includes identification information included in the trigger signal received from the mobile terminal 10 by the wireless communication unit 21.

The output determination sound pattern information 252 is information having a pattern of determination sounds output by the first sound output unit 231 and the second sound output unit 232. The output determination sound pattern information 252 has information representing a pattern such as a synthetic sound and a melody, which is the same as the sound collection determination sound pattern information 152 of the mobile terminal 10. The output judgment sound pattern information 252 may have a plurality of sets of a judgment sound pattern, a judgment sound identifier capable of identifying the judgment sound pattern, and an area for outputting the judgment sound, that is, a public area or a security area. ..

The registered user information 253 is information about a legitimate user who is permitted to enter the security area in advance. The registered user information 253 corresponds to the mobile terminal identification information 151 of the mobile terminal 10 and corresponds to the employee number or individual number of the legitimate user, or the serial number or identification number of the mobile terminal 10 possessed by the legitimate user. Includes identification information such as.

The entry / exit record information 254 is recorded in association with the entry / exit of the user who entered the security area by permitting the passage from the public area to the security area by the authentication device 20 and the user who exited the public area from the security area. Information.

The control unit 26 includes a trigger receiving means 261, a determination sound output means 262, a passage request receiving means 263, a judgment sound determination means 264, a validity verification means 265, an existence authentication means 266, a passage permission means 267, a position determination means 268, and a passage. It has a direction determination means 269 and an entrance / exit recording means 270. Each of these means is a functional module implemented by executing a computer program stored in the storage unit 25 on a processor included in the control unit 26.

<Software of authentication device 20>
The trigger receiving means 261 receives a trigger signal from the mobile terminal 10 via the wireless communication unit 21. If the strength of the received trigger signal is equal to or higher than a predetermined threshold value, the identification information of the trigger signal is stored in the storage unit 25 as the authentication target identification information 251. The signal strength threshold is set based on the strength value of the radio signal received by the authentication device 20 from the mobile terminal 10 located within a predetermined range around the door 30. The predetermined range is a predetermined range in which the distance between the mobile terminal 10 and the door is 3 m or less, more preferably 1 m or less.

When the trigger receiving means 261 receives a trigger signal having a strength equal to or higher than the threshold value, the determination sound output means 262 uses the sound output unit 23 to generate a determination sound of the pattern indicated by the output determination sound pattern information 252 stored in the storage unit 25. Output for a specified period. The determination sound output means 262 includes a first determination sound output means 2621 that outputs a first determination sound to a public area, and a second determination sound output means 2622 that outputs a second determination sound to a second area. The sound pressure level and direction of each determination sound output by the determination sound output means 262 are such that the mobile terminal 10 located within a predetermined range from the door 30 makes the determination sound from the authentication device 20 equal to or higher than a predetermined threshold value. It is set so that sound can be collected at the pressure level. The predetermined range is 3 m or 1 m or less. The determination sound output means 262 may output the determination sound a plurality of times. The first determination sound output means 2621 and the second determination sound output means 2622 output different patterns of determination sounds.

The passage request receiving means 263 notifies the existence authentication means 266 that the wireless communication unit 21 has received the passage request signal from the mobile terminal 10. When the strength of the received traffic request signal is equal to or higher than the threshold value and the analysis result is obtained by the sound analysis means 165 of the mobile terminal 10, the traffic request receiving means 263 extracts the analysis result from the traffic request signal. When the analysis result is transmitted by the analysis result signal separately from the traffic request signal, the traffic request receiving means 263 extracts the analysis result from the analysis result signal and processes the extracted analysis result in association with the traffic request signal.

The determination sound determination means 264 determines which determination sound output by the authentication device 20 is the collected sound collected by the mobile terminal 10 based on the analysis result of the sound analysis means 165 transmitted from the mobile terminal 10. .. For example, the determination sound determination means 264 compares the analysis result extracted by the passage request receiving means 263 with the output determination sound pattern information 252. If the analysis result is a determination sound identifier, the determination sound determination means 264 compares the analysis result with the determination sound identifier of the output determination sound pattern information 252. As a result of comparison, when the analysis result matches the information of the output judgment sound pattern information 252, the judgment sound identifier corresponding to the information is used as the judgment result. If neither information matches, the judgment result is no judgment sound.

The validity verification means 265 collates the identification information included in the traffic request signal with the identification information of the registered user information 253 stored in the storage unit 25, and allows the user of the mobile terminal 10 to enter the security area. Determine if the user is a legitimate user. The validity verification means 265 is a legitimate user who is allowed to enter the security area by the user of the mobile terminal 10 when the identification information of the traffic request signal matches the identification information of the registered user information 253. Is determined.

The existence authentication means 266 uses the mobile terminal 10 when the user of the mobile terminal 10 is determined to be legitimate by the validity verification means 265 and the sound collected by the sound collecting means 163 is the first determination sound. The person determines whether the person exists in a public area or is a legitimate user. The existence authentication means 266 uses the mobile terminal 10 when the user of the mobile terminal 10 is determined to be legitimate by the validity verification means 265 and the sound collected by the sound collecting means 163 is the second determination sound. The person determines whether the user exists in the security area or is a legitimate user. In other cases, the existence authentication means 266 determines that the user of the mobile terminal 10 is not a legitimate user existing in a public area or a security area.

The position determination means 268 determines whether the position of the user of the mobile terminal 10 is a public area or a security area based on the determination result of the determination sound determination means 264. For example, the position determination means 268 refers to the output determination sound pattern information 252, and determines that the area associated with the determination sound identifier, which is the determination result of the determination sound determination means 264, is the position of the user of the mobile terminal 10. judge.

The passage permission means 267 controls the unlocking and locking of the electric lock 31 of the door 30 based on the authentication result by the existence authentication means 266. For example, when the existence authentication means 266 authenticates that the user of the mobile terminal 10 is a legitimate user existing in a public area or a security area, the passage permission means 267 sends an unlock signal to the electric lock I /. It is transmitted to the electric lock 31 of the door 30 via the F unit 24. The electric lock 31 that has received the unlock signal unlocks the electric lock 31 of the door 30, so that the user is physically allowed to pass. If the existence authentication means 266 does not authenticate that the user of the mobile terminal 10 is a legitimate user existing in a public area or a security area, the passage permission means 267 does not transmit the unlock signal to the electric lock 31. In this case, the electric lock 31 of the door 30 remains locked, and the passage of the user is physically prohibited.

The passage permission means 267 may transmit a passage permission signal to the mobile terminal 10 via the wireless communication unit 21 so that the mobile terminal 10 can notify the user that the passage is permitted. The passage permission means 267 may output voice, a chime, or the like from the sound output unit 23 to notify the user of the mobile terminal 10 that the passage is permitted.

The traffic direction determining means 269 determines the direction in which the user of the mobile terminal 10 has passed in the public area and the security area. The traffic direction determining means 269 determines that the user has passed from the position (for example, a public area) of the user of the mobile terminal 10 determined by the position determining means 268 to another position (for example, a security area).

The entry / exit recording means 270 generates entry / exit record information 254 having identification information of a trigger signal or a passage request signal and entry / exit information indicating entry / exit, and stores the entry / exit record information 254 in the storage unit 25. The entry / exit recording means 270 determines entry / exit based on the result of the passage direction determination means 269 determining the direction of passage of the user. If the determination result of the passage direction determination means 269 is the passage from the public area to the security area, it is determined that the user of the mobile terminal 10 has entered the security area. If the determination result of the passage direction determination means 269 is the passage from the security area to the public area, it is determined that the user of the mobile terminal 10 has left the security area. The entrance / exit recording means 270 transmits the stored entrance / exit record information 254 to the management device 40 via the communication unit 22.

FIG. 4 is a diagram showing an example of an operation sequence of each device in the room entry / exit management system 1 according to the embodiment of the present invention. Hereinafter, the operation of the room entry / exit management system 1 according to the present embodiment will be described with reference to the sequence diagram shown in FIG. The sequence of operations described below is stored in the storage unit of each device, and is executed by the control unit of each device according to the program read in the control unit of each device.

The stationary detection means 161 of the mobile terminal 10 detects the stationary state of the user by the motion detecting unit 12. When the stationary state of the user is detected, the trigger transmission means 162 generates a trigger signal including the identification information (ID1) of the mobile terminal identification information 151 read from the storage unit 15, and the authentication device 20 is generated via the wireless communication unit 11. (S101).

The trigger receiving means 261 of the authentication device 20 receives the trigger signal transmitted from the mobile terminal 10 via the wireless communication unit 21 (S102), and whether or not the strength of the received trigger signal is equal to or higher than a predetermined threshold value. Is determined. When the strength of the received trigger signal is equal to or higher than the threshold value, the trigger receiving means 261 stores the identification information (ID1) included in the trigger signal in the storage unit 25 as the authentication target identification information 251. The first judgment sound output means 2621 and the second judgment sound output means 2622 can output the judgment sound of the pattern indicated by the output judgment sound pattern information 252 of the storage unit 25 into the first sound output unit 231 or the second sound output unit 232, respectively. Is output for a predetermined period from (S103). When the strength of the received trigger signal is less than the threshold value, the trigger receiving means 261 does not store the identification information (ID1) included in the trigger signal as the authentication target identification information 251 in the storage unit 25, and the first determination sound output means. The 2621 and the second determination sound output means 2622 do not output the determination sound.

The sound collecting means 163 of the mobile terminal 10 collects sound by the sound collecting unit 13 during a predetermined period (hereinafter, referred to as a first predetermined period) after the trigger transmitting means 162 transmits the trigger signal to the authentication device 20. .. Hereinafter, the sound collected during the first predetermined period is referred to as the first collected sound. The sound analysis means 165 measures and analyzes the first collected sound (S104).

FIG. 5 is a flowchart showing an example of sound measurement and analysis processing (S104 in FIG. 4) in the mobile terminal 10. Hereinafter, the operation of the mobile terminal 10 according to the present embodiment will be described with reference to the flowchart shown in FIG. The operation flow described below is stored in the storage unit 15 and executed by the control unit 16 according to the program read in the control unit 16.

First, the sound analysis means 165 measures the sound pressure level of the sound collected by the sound collecting unit 13 by the sound collecting means 163 (S201). When the sound pressure level is equal to or higher than a predetermined threshold value (Y in S202), the sound analysis means 165 analyzes the sound collected by the sound collecting means 163 (S203). When the analyzed sound pattern matches the pattern indicated by the sound collection determination sound pattern information 152 (Y in S204), the sound analysis means 165 generates an analysis result (S205). The analysis result is a judgment sound identifier corresponding to the matching judgment sound pattern.

When the sound pressure level of the sound collected by the sound collecting unit 13 is less than the threshold value (N in S202), the mobile terminal 10 ends a series of processes related to the trigger signal transmitted in S101 of FIG. 4 (S206). .. Even when the collected sound does not match the pattern of the sound collection determination sound pattern information 152 (N in S204), the mobile terminal 10 ends a series of processes related to the trigger signal transmitted in S101 of FIG. 4 (S206). ). This is the end of the description of FIG.

Returning to FIG. 4, the passage request transmission means 166 generates a passage request signal having the identification information (ID2) of the mobile terminal identification information 151 and the analysis result of the first collected sound by the sound analysis means 165, and the wireless communication unit 11 Is transmitted to the authentication device 20 via (S105).

When the passage request receiving means 263 of the authentication device 20 receives the passage request signal within a predetermined period (S106), the position determination means 268 is a portable terminal at the time of transmitting the passage request based on the determination result of the determination sound determination means 264. It is determined whether the position of the user of 10 is a public area or a security area (S107). The determination result of the position determination means 268 in S107 is referred to as a position before unlocking.

The existence authentication means 266 authenticates the user of the mobile terminal 10 that has transmitted the passage request signal based on the identification information of the passage request signal and the analysis result of the first collected sound (S108). When the passage request receiving means 263 does not receive the passage request signal within a predetermined period, the authentication device 20 ends a series of processes related to the trigger signal received in S102 of FIG.

FIG. 6 is a flowchart showing an example of the existence authentication process of the authentication device 20 (S108 in FIG. 5). Hereinafter, the operation of the authentication device 20 according to the present embodiment will be described with reference to the flowchart shown in FIG. The operation flow described below is stored in the storage unit 25 and executed by the control unit 26 according to the program read in the control unit 26.

First, the determination sound determination means 264 determines which determination sound output by the authentication device 20 is the sound collected by the mobile terminal 10 (S301). When the determination result matches the determination sound output by the authentication device 20 (Y in S301), the existence authentication means 266 receives the traffic request for the identification information (ID1) included in the trigger signal stored in the storage unit 25. It is determined whether or not the identification information (ID2) included in the signal matches (S302).

When ID1 and ID2 match (Y in S302), the validity verification means 265 collates the identification information (ID2) of the passage request signal with the identification information of the registered user information 253, and transmits the passage request signal. The legitimacy of the user of the mobile terminal 10 is determined (S303). When it is determined that the user is a legitimate user (Y in S303), the existence authentication means 266 authenticates the user of the mobile terminal 10 as a legitimate user existing in the position before unlocking (S304). That is, in the authentication device 20, the identification information (ID1) included in the trigger signal and the identification information (ID2) included in the passage request signal match, and the sound collected by the mobile terminal 10 is the first sound output unit 231. If it is the first determination sound output from, the user of the mobile terminal 10 is authenticated as a legitimate user existing in the public area where the first sound output unit 231 outputs the sound, or the sound collection of the mobile terminal 10 is performed. When the sound is the second judgment sound output from the second sound output unit 232, the user of the mobile terminal 10 is authenticated as a legitimate user existing in the security area where the second sound output unit 232 outputs the sound. do. If any of S301 to S303 corresponds to N, the existence authentication means 266 does not authenticate the user of the mobile terminal 10 as a legitimate user existing at the position before unlocking (S305). This is the end of the description of FIG.

Returning to FIG. 4, when the existence authentication means 266 authenticates the user of the mobile terminal 10 in the authentication device 20, the passage permission means 267 sends an unlock signal instructing the unlock to the electric lock I / F unit 24. It is transmitted to the electric lock 31 of the door 30 via the door 30 (S109). The electric lock 31 that has received the unlock signal from the authentication device 20 (S110) is unlocked for a predetermined period (S111), and physically permits the user of the mobile terminal 10 to pass through the door 30.

When the existence authentication means 266 authenticates the user of the mobile terminal 10, the passage permission means 267 transmits a passage permission signal to the mobile terminal 10 to notify that the user of the mobile terminal 10 is allowed to pass (S112). ). The mobile terminal 10 that has received the passage permission signal (S113) may urge the user to pass by displaying on the screen that the passage is permitted, outputting a chime, a voice, or the like. The passage permission means 267 may output voice, a chime, or the like from the sound output unit 23 to notify the user of the mobile terminal 10 that the passage is permitted.

When the passage permission means 267 permits the passage of the user of the mobile terminal 10, the passage direction determining means 269 determines the passage direction of the user of the mobile terminal 10 based on the position before unlocking (S114). That is, the traffic direction determining means 269 determines whether the user of the mobile terminal 10 has entered or exited the security area.

After the determination by the traffic direction determination means 269, the entrance / exit recording means 270 stores the identification information of the traffic request signal and the entrance / exit information of the user of the mobile terminal 10 as the entrance / exit record information 254 as the entrance / exit record information 25. Remember in. The entrance / exit recording means 270 transmits the stored entrance / exit record information 254 to the management device 40 via the communication unit 22 (S115). The management device 40 receives the entry / exit record information 254 (S116) and manages the entry / exit of the user.

According to the room entry / exit management system 1 according to the present invention described above, the authentication device 20 outputs different determination sounds to the public area and the security area in response to the trigger transmission by the mobile terminal 10, and the sound produced by the mobile terminal 10 is heard. The position where the mobile terminal exists is determined based on the analysis result. Therefore, the authentication device 20 can determine whether or not the user of the mobile terminal 10 can pass between the public area and the security area according to the position where the mobile terminal 10 exists.

Further, if the identification information included in the trigger signal first received from the mobile terminal 10 and the identification information included in the traffic request signal received thereafter do not match, the authentication device 20 determines the user of the mobile terminal 10. Not subject to authentication. As a result, authentication is performed only when the mobile terminal 10 that has transmitted the trigger signal and the mobile terminal 10 that has transmitted the traffic request signal are the same, so that the accuracy of authentication is further improved and the safety of the room entry / exit management system 1 is improved. It can be further improved.

<First modification>
The first modification will be described with reference to FIGS. 7 to 10. In the first modification, in order to improve the accuracy of determining the passage direction of the user of the mobile terminal, the authentication device further outputs a determination sound after the door 30 is unlocked, and the door 30 of the mobile terminal is unlocked. Collect the sound later. The sound collected by the mobile terminal during a predetermined period (hereinafter referred to as a second predetermined period) after the door 30 is unlocked is referred to as a second collected sound. The authentication device further determines the position of the mobile terminal after unlocking based on which of the output determination sounds is included in the second collected sound, and determines the position of the door 30 before unlocking and after unlocking. The passage direction of the user of the mobile terminal is determined based on the position. In the first modification, the same elements as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 7 is an example of a configuration diagram of the mobile terminal 10 ′ according to the first modification. The mobile terminal 10'is the same as the mobile terminal 10 except that the control unit 16 further includes a passage confirmation signal transmitting means 167.

The traffic confirmation signal transmitting means 167 generates and transmits a traffic confirmation signal included in the identification information (ID3) of the mobile terminal 10'or the user carrying the mobile terminal 10'in place of the traffic request signal. Performs the same processing as the traffic request transmitting means 166.

FIG. 8 is an example of a configuration diagram of the authentication device 20 ′ according to the first modification. The authentication device 20 ′ further includes a third determination sound output means 2623 and a fourth determination sound output means 2624 in the determination sound output means 262 of the control unit 26, and the passage direction determination means 269 is replaced with the passage direction determination means 269 ′. Except for the point, it is the same as the authentication device 20.

The third determination sound output means 2623 outputs the third determination sound to the public area. The fourth determination sound output means 2624 outputs the fourth determination sound to the security area. The third determination sound may be the same sound as the first determination sound, and the fourth determination sound may be the same sound as the second determination sound. The output judgment sound pattern information 252 has the information of the judgment sound pattern of the third judgment sound and the fourth judgment sound, the judgment sound identifier, and the area for outputting the judgment sound, as in the case of the first judgment sound and the second judgment sound. ..

FIG. 9 is a diagram showing an example of an operation sequence of each device in the room entry / exit management system 1 ′ according to the first modification. Hereinafter, the operation of the room entry / exit management system 1'according to the first modification will be described with reference to the sequence diagram shown in FIG. The sequence of operations described below is stored in the storage unit of each device, and is executed by the control unit of each device according to the program read in the control unit of each device. Further, since the processing of S101 to S113 of the operation sequence of each device shown in FIG. 4 is the same as the operation sequence of each device in the entry / exit management system 1'according to the first modification, some of the same parts are the same. The description and description in FIG. 9 will be omitted except for the above.

After a predetermined time has elapsed since the passage permission means 267 of the authentication device 20'transmits the unlock signal to the electric lock 31 of the door 30 (S109), the judgment sound output means outputs the second judgment sound (S). S121). For example, the third determination sound output means 2623 outputs the third determination sound to the public area, and the fourth determination sound output means 2624 outputs the fourth determination sound to the security area.

After receiving the passage permission signal (S113), the mobile terminal 10'measures and collects the second collected sound collected by the sound collecting means 163 in the second predetermined period after the electric lock 31 is unlocked. The second collected sound that has been sounded is analyzed (S122). This process is the same as the process described in FIG. 5, that is, the process of S104 of FIG. 4, except that the target is the second collected sound and the series of processes is not terminated in S206 of FIG. be. Hereinafter, the analysis result of the second collected sound will be referred to as the second collected sound analysis result.

The traffic confirmation signal transmitting means 167 of the mobile terminal 10'generates a traffic confirmation signal having the identification information of the mobile terminal identification information 151 and the second collected sound analysis result, and transmits the traffic confirmation signal to the authentication device 20 via the wireless communication unit 11. (S123).

When a predetermined period has elapsed since the second determination sound was output, the authentication device 20'uses the mobile terminal 10'regardless of whether or not the traffic confirmation signal is received within the predetermined period (S124). The traffic direction of the person is determined (S125).

FIG. 10 is a flowchart showing an example of the traffic direction determination process (S125 in FIG. 9) in the authentication device 20'. Hereinafter, the operation of the authentication device 20'according to the present embodiment will be described with reference to the flowchart shown in FIG. The operation flow described below is stored in the storage unit 25 and executed by the control unit 26 according to the program read in the control unit 26.

First, when the authentication device 20'does not receive the traffic confirmation signal within the predetermined period (N of S501), the traffic direction determining means 269' does not allow the user of the mobile terminal 10' to pass to another area. , It is determined that the person has left the periphery of the door 30 (S502). Even when the traffic confirmation signal is received (Y in S501) and the identification information (ID2) included in the traffic request signal and the identification information (ID3) included in the traffic confirmation signal do not match (N in S503), the traffic direction is determined. Means 269'determines that the user has left the periphery of the door 30 (S502).

When ID2 and ID3 match (Y in S503), the determination sound determination means 264 uses the authentication device 20'for the sound collected by the mobile terminal 10'based on the second collected sound analysis result of the traffic confirmation signal. It is determined which determination sound is output from (S504). Based on the determination result of the determination sound determination means 264, that is, the determination result based on the second collected sound analysis result, the position determination means 268 determines whether the position of the user of the mobile terminal 10'is a public area or a security area ( S505). Hereinafter, the determination result of the position determination means 268 in S505 is referred to as a position after unlocking.

The traffic direction determining means 269'determines the direction in which the user of the mobile terminal 10' has passed, based on the pre-unlocking position and the post-unlocking position determined in S107 of FIG. For example, the traffic direction determining means 269'determines whether or not the pre-unlocking position and the post-unlocking position are the same (S506). When the pre-unlocking position and the post-unlocking position are the same, the traffic direction determining means 269 determines that the user of the mobile terminal 10'does not pass through another area and stays in the vicinity of the door 30. (S507). When the pre-unlocking position and the post-unlocking position are different, the traffic direction determining means 269 determines that the user of the mobile terminal 10'has passed from the pre-unlocking position area to the post-unlocking position area (S508). This is the end of the description of FIG.

Returning to FIG. 9, after the determination by the traffic direction determination means 269', the entrance / exit recording means 270 inputs the identification information of the traffic request signal and the entrance / exit information of the user of the mobile terminal 10'to the security area. It is stored in the storage unit 25 as the exit record information 254. The entrance / exit recording means 270 transmits the stored entrance / exit record information 254 to the management device 40 via the communication unit 22 (S126). The management device 40 receives the entry / exit record information 254 (S127) and manages the entry / exit of the user.

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

In the above embodiment, when the pass permission means 267 determines that the legitimacy verification means 265 is a legitimate user regardless of whether the user of the mobile terminal 10 exists in the public area or the security area, the door 30 An example of unlocking the electric lock 31 of the above has been described. The passage permission means 267 may change whether or not to unlock the electric lock 31 of the door 30 depending on the area where the user of the mobile terminal 10 exists. For example, when the user of the mobile terminal 10 is present in a public area, the electric lock 31 of the door 30 is unlocked, but when the user is present in the security area, the electric lock 31 of the door 30 may not be unlocked. As a result, it is possible to realize a passage permit according to the position of the user of the mobile terminal 10.

In the above embodiment, the case where one authentication device is used has been described, but a plurality of authentication devices may be provided, such as one on the public area side and one on the security area side. In this case, one authentication device may have a first sound output unit, the other authentication device may have a second sound output unit, and a plurality of authentication devices may cooperate to execute authentication.

In the above embodiment, the sound output unit 23 of the authentication device has a first sound output unit 231 and a second sound output unit 232 for each area for outputting sound, but one sound output unit directs the sound output. By changing the sex, the sound output for each area may be realized.

In the above embodiment, the mobile terminal 10 is used by determining whether or not the sound pressure level of the measured determination sound is equal to or higher than the threshold value and transmitting a passage request signal based on the determination result. It was decided whether or not to certify the person. The mobile terminal 10 does not have to determine the sound pressure level of the determination sound. For example, the mobile terminal 10 only measures the sound pressure level of the determination sound, and the measurement result of the sound pressure level and the mobile terminal identification information 151. A traffic request signal including the identification information of the above may be transmitted to the authentication device 20. The authentication device 20 determines whether or not the measurement result of the sound pressure level of the traffic request signal received from the mobile terminal 10 is equal to or higher than a predetermined sound pressure level threshold value, and sounds according to the authentication condition of the existence authentication means 266. It may be added that the measurement result of the pressure level is equal to or higher than the threshold value. Further, when adding that the measurement result of the sound pressure level is equal to or higher than the threshold value to the authentication condition of the existence authentication means 266, the passage request signal or the determination sound identifier is the determination sound collected by the mobile terminal 10. Since it is transmitted when it is analyzed that the sound pressure level is equal to or higher than the threshold value, the sound pressure level of the determination sound collected by the mobile terminal 10 receives the passage request signal or the determination sound identifier by the passage request receiving means 263. It may be determined that it was acquired as a measurement result meaning that it was equal to or higher than the threshold value.

In the operation sequence of FIG. 4 of the above embodiment, the case where the analysis result by the sound analysis means 165 of the mobile terminal 10 is the determination sound identifier has been described, but the analysis result by the sound analysis means 165 may be a frequency spectrum. .. In this case, in the process of FIG. 5, the matching of the sound patterns of S204 is not determined, and the analysis result generated in S205 has a frequency spectrum instead of the determination sound identifier. The authentication device 20 determines whether the frequency spectrum received from the mobile terminal 10 includes the first determination sound or the second determination sound whose sound pressure level is equal to or higher than the threshold value, and acquires the determination result as an analysis result. As a result, the mobile terminal does not have to store information regarding the type of the determination sound, so that it is not necessary to change the mobile terminal when adding or changing the determination sound.

Further, when the determination sound is a pattern of a series of notes representing a specific melody, the sound analysis means 165 determines from the analysis result that the frequency change of the collected sound for a predetermined time is the determination sound possessed by the sound collection determination sound pattern information 152. It may be determined whether or not it matches the pattern of.

Further, for example, the mobile terminal 10 determines whether or not the sound pressure levels of the first determination sound and the second determination sound are equal to or higher than the threshold value, and the sound pressure levels of the first determination sound and the second determination sound are equal to or higher than the threshold value. In some cases, the affirmative measurement result transmitting means for wirelessly transmitting the first affirmative measurement result and the second affirmative measurement result to the authentication device 20 is further provided, and the determination sound determination means 264 is the first from the affirmative measurement result transmitting means. The reception of the affirmative measurement result is acquired as the determination result that the mobile terminal 10 has collected the first determination sound equal to or higher than the sound pressure level threshold, and the reception of the second affirmative measurement result from the affirmative measurement result transmission means is received by the mobile terminal. It may be acquired as a determination result that 10 has collected the second determination sound equal to or higher than the sound pressure level threshold. Further, the mobile terminal 10 further has a sound pressure level transmitting means for wirelessly transmitting the sound pressure levels of the first determination sound and the second determination sound to the authentication device, and the determination sound determination means 264 has the first determination sound and the first determination sound. 2 It is determined whether or not the sound pressure level of the determination sound is equal to or higher than the threshold value, and when it is determined that the sound pressure levels of the first determination sound and the second determination sound are equal to or higher than the threshold value, the determination result is first. It may be acquired as an affirmative measurement result and a second affirmative measurement result.

In the above embodiment, the authentication device 20 determines whether or not the identification information stored when the trigger signal is received from the mobile terminal 10 and the identification information present when the traffic request signal is received match. , It is not necessary to make this determination. For example, the authentication device 20 may determine whether or not the identification information included in either the trigger signal or the passage request signal matches the registered identification information and allow the passage. For example, the authentication device 20 outputs only a determination sound when a trigger signal is received, 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 value. If so, allow traffic. In this case, it is sufficient that the identification information is included in either the trigger signal or the traffic request signal.

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 pattern different for each mobile terminal 10. In this case, the authentication device stores the determination sound pattern to be output for each identification information of the mobile terminal 10 in advance by the storage unit 25, and stores the determination sound pattern from the storage unit 25 corresponding to the identification information of the received trigger signal. The read and the judgment sound of the read pattern may be output. The mobile terminal 10 confirms that the pattern of the collected sound is a pattern of the determination sound peculiar to itself stored in the storage unit 15, and passes based on the result of measuring the sound pressure level of the confirmed determination sound. The request signal may be transmitted to the authentication device 20. In this case, the authentication device 20 does not have to determine the match between the identification information of the trigger signal and the identification information of the passage request signal, and the identification information may be included in only one of the trigger signal and the passage request signal. ..

In the above embodiment, when the mobile terminal 10 detects the stationary state of the user, the trigger signal is transmitted to the authentication device 20, but the condition for transmitting the trigger signal is not limited to this. For example, the mobile terminal 10 receives a trigger signal when the user receives an operation such as unlocking the electric lock of the liquid crystal panel or tapping the application, or when the authentication device 20 receives a predetermined radio signal transmitted at regular intervals. May be transmitted to the authentication device 20. The mobile terminal 10 emits a predetermined determination sound output by the authentication device 20 when receiving a predetermined radio signal transmitted by the authentication device 20 in response to an operation on the authentication device 20 or in response to an operation on the authentication device 20. When the mobile terminal 10 collects sound, the trigger signal may be transmitted to 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 it does not have to be the door 30. For example, for two areas physically separated by a wall or the like, the user of the mobile terminal 10 exists on either side of the two areas by using the determination sound and the wireless signal in the same manner as in the above embodiment. You may decide whether to do it and authenticate. As a result, the position of each user can be grasped by installing the authentication device 20 everywhere in the building having a plurality of areas and determining which mobile terminal 10 user is in which area. When the sound pressure level of the judgment sound reaching between the mutual areas decreases by a certain amount or more due to the directivity and the output direction of the judgment sound, it is not necessary to install a wall or the like between the areas.

In the operation sequence of FIG. 9 of the above embodiment, when the second determination sound is output, the third determination sound output means 2623 outputs the third determination sound to the public area, and the fourth determination sound output means 2624 The case where the fourth judgment sound is output to the security area has been described, but based on the analysis result of the first judgment sound collected by the mobile terminal 10, the second judgment sound is output only by one of the judgment sound output means. You may output it. For example, when it is determined from the analysis result of the first determination sound that a legitimate user exists in the public area, the second determination sound may be output only to the security area. Thereby, in the second determination sound, it is possible to determine whether or not the user has passed without outputting the determination sound by both of the determination sound output means installed on both sides of the door.

The present invention can be applied to various authentication devices in an entry / exit management system, an authentication system, a position grasping system, and the like.

1 Entry / exit management system (authentication system)
10 Mobile terminal 15 Storage unit 20 Authentication device 25 Storage unit 30 Door 31 Electric lock 152 Sound collection judgment sound pattern information 161 Quiet detection means 162 Trigger transmission means 163 Sound collection means 165 Sound analysis means 166 Traffic request transmission means 167 Traffic confirmation signal transmission Means 252 Output Judgment Sound Pattern Information 264 Judgment Sound Judgment Means 265 Validation Sound Judgment Means 266 Existence Authentication Means 267 Passage Permission Means 268 Position Judgment Means 269 269'Passage Direction Judgment Means 2621 First Judgment Sound Output Means 2622 Second Judgment Sound Output Means 2623 Third judgment sound output means 2624 Fourth judgment sound output means

Claims (7)

An authentication system including a mobile terminal carried by a user and an authentication device for authenticating that the user of the mobile terminal is a user existing in an adjacent first area or second area.
The mobile terminal is
A sound collecting means that collects surrounding sounds,
A sound analysis means for analyzing the sound collected by the sound collecting means, and a sound analysis means.
It has an authentication request transmitting means for wirelessly transmitting an authentication request signal including identification information of the mobile terminal to the authentication device together with an analysis result of the collected sound by the sound analysis means.
The authentication device is
A determination sound output means that outputs a first determination sound to the first area and outputs a second determination sound different from the first determination sound to the second area.
A validity verification means for determining whether or not the user of the mobile terminal is a legitimate user based on the identification information included in the authentication request signal transmitted from the mobile terminal.
When the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result indicates that the mobile terminal has collected the first determination sound, the mobile phone is used. The user of the terminal is authenticated as a legitimate user existing in the first area, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result. Indicates that the mobile terminal has collected the second determination sound, the presence authentication means for certifying that the user of the mobile terminal is a legitimate user existing in the second area, and
When the existence authentication means determines that the user of the mobile terminal exists in the first area, the existence authentication means permits the user of the mobile terminal to pass from the first area to the second area. Has a passage permitting means for permitting the passage of the user of the mobile terminal from the second area to the first area when it is determined that the user of the mobile terminal exists in the second area .
An authentication system characterized by that. The authentication device is
After the existence authentication means authenticates that the user of the mobile terminal exists in the first area, the second determination sound is output from the determination sound output means after a lapse of a predetermined time.
When it is authenticated that the user of the mobile terminal exists in the second area based on the second determination sound, the traffic direction determining means for determining that the user has moved from the first area to the second area is further provided. The authentication system according to claim 1 . An authentication system including a mobile terminal carried by a user and an authentication device for authenticating that the user of the mobile terminal is a user existing in an adjacent first area or second area.
The mobile terminal is
A sound collecting means that collects surrounding sounds,
A sound analysis means for analyzing the sound collected by the sound collecting means, and a sound analysis means.
It has an authentication request transmitting means for wirelessly transmitting an authentication request signal including identification information of the mobile terminal to the authentication device together with an analysis result of the collected sound by the sound analysis means.
The authentication device is
A determination sound output means that outputs a first determination sound to the first area and outputs a second determination sound different from the first determination sound to the second area.
A validity verification means for determining whether or not the user of the mobile terminal is a legitimate user based on the identification information included in the authentication request signal transmitted from the mobile terminal.
When the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result indicates that the mobile terminal has collected the first determination sound, the mobile phone is used. The user of the terminal is authenticated as a legitimate user existing in the first area, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result. Indicates that the mobile terminal has collected the second determination sound, the presence authentication means for certifying that the user of the mobile terminal is a legitimate user existing in the second area. Have and
The mobile terminal further includes a trigger transmission means for wirelessly transmitting a trigger signal including identification information of the mobile terminal to the authentication device based on a predetermined trigger condition.
When the determination sound output means receives the trigger signal from the mobile terminal, the determination sound output means outputs the first determination sound to the first area and the second determination sound to the second area.
The existence authentication means authenticates that the user of the mobile terminal is a legitimate user, provided that the identification information included in the received trigger signal and the identification information included in the authentication request signal match. ,
An authentication system characterized by that. The authentication system according to any one of claims 1 to 3, wherein the sound analysis means analyzes whether the collected sound includes the first determination sound or the second determination sound. The sound analysis means analyzes the sound pressure levels of the first determination sound and the second determination sound included in the collected sound, and analyzes the sound pressure levels.
The existence authentication means is
When the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result indicates the first determination sound whose sound pressure level is equal to or higher than the threshold value, the mobile terminal is used. The user is authenticated as a legitimate user existing in the first area, and the user is authenticated.
When the validity verification means determines that the user of the mobile terminal is a legitimate user, and the analysis result indicates the second determination sound whose sound pressure level is equal to or higher than the threshold value, the mobile terminal is used. The authentication system according to any one of claims 1 to 4, wherein the user is authenticated as a legitimate user existing in the second area. A judgment sound output means that outputs a first judgment sound to the first area as a judgment sound and outputs a second judgment sound different from the first judgment sound to the second area adjacent to the first area.
A validity verification means for determining whether or not the user of the mobile terminal is a legitimate user based on the identification information included in the authentication request signal transmitted from the mobile terminal carried by the user.
When the validity verification means determines that the user of the mobile terminal is a legitimate user and the collected sound collected by the sound collecting means of the mobile terminal is the first determination sound, the mobile phone is used. The user of the terminal is authenticated as a legitimate user existing in the first area, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the mobile terminal When the collected sound collected by the sound collecting means is the second determination sound, the existence authentication means for certifying that the user of the mobile terminal is a legitimate user existing in the second area, and
When the existence authentication means determines that the user of the mobile terminal exists in the first area, the existence authentication means permits the user of the mobile terminal to pass from the first area to the second area. Has a passage permitting means for permitting the passage of the user of the mobile terminal from the second area to the first area when it is determined that the user of the mobile terminal exists in the second area .
An authentication device characterized by that. A judgment sound output means that outputs a first judgment sound to the first area as a judgment sound and outputs a second judgment sound different from the first judgment sound to the second area adjacent to the first area.
A validity verification means for determining whether or not the user of the mobile terminal is a legitimate user based on the identification information included in the authentication request signal transmitted from the mobile terminal carried by the user.
When the validity verification means determines that the user of the mobile terminal is a legitimate user and the collected sound collected by the sound collecting means of the mobile terminal is the first determination sound, the mobile phone is used. The user of the terminal is authenticated as a legitimate user existing in the first area, the validity verification means determines that the user of the mobile terminal is a legitimate user, and the mobile terminal When the collected sound collected by the sound collecting means of the above is the second determination sound, the user of the mobile terminal has an existence authentication means for certifying that the user is a legitimate user existing in the second area. death,
When the determination sound output means receives a trigger signal including the identification information of the mobile terminal wirelessly transmitted from the mobile terminal based on a predetermined trigger condition, the determination sound output means outputs the first determination sound to the first area. The second judgment sound is output to the two areas, and the second judgment sound is output.
The existence authentication means authenticates that the user of the mobile terminal is a legitimate user, provided that the identification information included in the received trigger signal and the identification information included in the authentication request signal match. ,
An authentication device characterized by that.

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