JP2022165727A - Unlocking device and unlocking system - Google Patents

Abstract

To provide an unlocking device capable of unlocking without requiring a person within a room to manually unlock while ensuring security.SOLUTION: An unlocking device 1 in an embodiment includes: an imaging unit 11 in which a display unit of a room unit of an intercom system is installed at a position where imaging is possible; a call information detection unit 161 that detects call information emitted by a room unit when an entrance machine of the intercom system is operated; a certification condition acquisition unit 163 that acquires certification conditions; and an unlock control unit 164 that is configured so as to, when the pick-up image on the display unit picked up by the imaging unit, which is detected after the call information detection unit has detected the call information, satisfies certification conditions, control a front door to unlock.SELECTED DRAWING: Figure 9

Description

The present invention relates to an unlocking device and an unlocking system for unlocking an entrance door of a building.

2. Description of the Related Art In housing complexes such as apartments, housing complexes, and condominiums, there are cases where an intercom system is installed at the collective entrance, which is a common space, and can unlock the entrance door of the collective entrance remotely from each resident's room. In such an intercom system, an entrance machine is installed at the collective entrance to call by inputting the number of the room to be visited, and a room machine is installed in the residential room to receive the call and unlock the entrance door of the collective entrance. . Patent Literature 1 discloses a technique for unlocking the entrance door of a collective entrance based on a personal identification number entered in the entrance machine.

JP-A-7-236184

A third party who does not have a key to the entrance door may be accepted into the room when the room is under construction or when the room is inspected for sale or rental. In such a situation, in order to unlock the front door, it is necessary for a person to wait in the living room, which is inconvenient. Further, in the technique described in Patent Document 1, it is not preferable from the viewpoint of security to tell a third party the personal identification number for unlocking the entrance door of the collective entrance.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is to enable a front door to be unlocked without requiring a person in a living room to unlock it manually while maintaining security. With the goal.

An unlocking device according to a first aspect of the present invention includes an entrance machine installed outside an entrance door in a building, and an entrance machine installed in a living room of the building, and captures an image of an area outside the entrance door. An intercom system comprising: a housing attached to the living room unit having a display for displaying; an imaging unit provided at a position capable of imaging the display; A call information detection unit that detects call information issued by the living room unit, an authentication condition acquisition unit that acquires authentication conditions, and the display unit captured by the imaging unit after the call information detection unit detects the call information. and an unlocking control unit that performs control for unlocking the front door when the captured image satisfies the authentication condition.

The unlocking control unit obtains a code included in the captured image captured by the imaging unit and displayed by the display unit, and unlocks the front door when the code satisfies the authentication condition. may be controlled.

The unlocking control unit acquires characteristic information of a person included in the captured image captured by the imaging unit and displayed by the display unit, and unlocks the front door when the characteristic information satisfies the authentication condition. You may perform control for unlocking.

The authentication condition acquisition unit acquires the authentication condition associated with the place where the room machine is installed, and the unlocking control unit is configured such that the captured image of the display unit captured by the imaging unit is used in the room. Control may be exercised to unlock the front door if the authentication conditions associated with the location where the machine is installed are met.

The call information detection unit detects a ringing sound emitted by a speaker of the room unit in response to the operation of the entrance machine and a display or lamp of the room unit in response to the operation of the entrance machine. At least one of emitted light may be detected as the call information.

The call information detection unit may detect, as the call information, detection of movement of a subject in a range in which the captured image of the display unit captured by the imaging unit is captured.

The unlock control unit transmits an unlock signal for unlocking the front door to an unlocking device attached to the front door when the captured image satisfies the authentication condition, thereby unlocking the front door. may be controlled to unlock the

An unlocking system according to a second aspect of the present invention comprises an unlocking device and a mobile terminal, wherein the unlocking device comprises an entrance machine installed outside an entrance door of a building, and an entrance door of the building. a housing installed in a living room and having a display unit for displaying a captured image including a screen displayed by the mobile terminal outside the entrance door; An imaging unit provided at a position capable of capturing an image of a display unit, a call information detection unit detecting call information issued by the room unit in response to operation of the entrance unit, and an authentication condition acquisition unit acquiring authentication conditions. and obtaining a code included in the captured image displayed by the display unit captured by the imaging unit after the call information detection unit detects the call information, and when the code satisfies the authentication condition, an unlocking control unit that performs control for unlocking the front door, and the mobile terminal has a display that displays the code.

The unlocking system further includes a server that authenticates the mobile terminal, and the mobile terminal further includes a display control unit that displays the code on the display of the mobile terminal when authenticated by the server. may

The display control unit, when authenticated by the server, receives key information associated with the location where the room unit is installed from the server, and generates the code based on the received key information. , the generated code may be displayed on the display of the mobile terminal.

An unlocking device according to a third aspect of the present invention includes an entrance machine installed outside an entrance door in a building and a room machine installed in a living room of the building and emitting a sound received from the entrance machine. a housing attached to the living room unit of an intercom system comprising: a sound input unit for receiving sound emitted by the living room unit; and detecting call information emitted by the living room unit in response to operation of the entrance machine. an authentication condition acquisition unit that acquires an authentication condition; and when the call information detection unit detects the call information, the transmission and reception of sound between the entrance machine and the living room machine are started. and a living room unit operating unit for operating the living room unit as described above, and attached to the front door when the sound received by the sound input unit after the calling information detection unit detects the calling information satisfies the authentication condition. an unlocking control unit that transmits an unlocking signal for unlocking the entrance door to an unlocking device installed in the door.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to unlock a front door, without requiring the person in a living room to unlock manually, maintaining security.

1 is a schematic diagram of an unlocking system according to a first embodiment; FIG. 1 is a block diagram of a mobile terminal according to a first embodiment; FIG. 1 is a front view of a mobile terminal; FIG. It is a front view of an unlocking device and a room unit. 1 is a block diagram of an unlocking device according to a first embodiment; FIG. FIG. 3 is a schematic diagram for explaining a configuration for an unlocking device to detect call information and a configuration for the unlocking device to unlock a front door based on a captured image; It is a figure which shows the flowchart of the unlocking method which the unlocking device which concerns on 1st Embodiment performs. It is a schematic diagram of the unlocking system which concerns on 2nd Embodiment. It is a block diagram of an unlocking device according to a second embodiment. FIG. 3 is a schematic diagram for explaining a configuration for an unlocking device to detect call information and a configuration for the unlocking device to unlock a front door based on a captured image; It is a figure which shows the flowchart of the unlocking method which the unlocking device which concerns on 2nd Embodiment performs. FIG. 11 is a block diagram of a mobile terminal according to a third embodiment; FIG. FIG. 4 is a schematic diagram for explaining a configuration for an unlocking device to unlock an entrance door based on an unlocking sound; FIG. 11 is a diagram showing a flowchart of an unlocking method executed by the unlocking device according to the third embodiment;

<First embodiment>
[Outline of unlocking system S]
FIG. 1 is a schematic diagram of an unlocking system S according to this embodiment. The unlocking system S includes an unlocking device 1 , a mobile terminal 2 and a management server 3 . The unlocking system S is a system for unlocking a front door provided at the entrance of a building by using an intercom system provided in a house. The intercom system includes, for example, an entrance unit 4 installed at a collective entrance, which is a common space of a collective housing, and a room unit 5 installed in a living room. The unlocking device 1 is a device for unlocking the entrance door by operating the room unit 5 . In the example of FIG. 1, since the unlocking device 1 is provided so as to cover the front of the room unit 5, each part of the room unit 5 is indicated by broken lines.

The entrance machine 4 is installed near the entrance door of the collective entrance, and receives operations for locking and unlocking the entrance door and calling the room machine 5 . The entrance machine 4 and the room machine 5 are electrically connected by wire or wirelessly. The entrance machine 4 has number buttons 41 , a call button 42 , a sound input/output section 43 and an imaging section 44 .

The number button 41 is an operation unit for inputting the room number. The call button 42 is an operation unit for calling the room unit 5 installed in the room corresponding to the number input using the number buttons 41 . The sound input/output unit 43 includes a speaker (sound output unit) that outputs the sound received from the room unit 5 and a microphone (sound input unit) that inputs ambient sound and transmits it to the room unit 5 . The imaging unit 44 includes a camera that images the area outside the entrance door. The imaging unit 44 captures an image of a range including the position in front of the entrance machine 4 as an area outside the entrance, for example.

The room unit 5 has a display unit 51 , a sound input/output unit 52 and buttons 53 . The display unit 51 includes a display device (display) such as a liquid crystal display that displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance machine 4 . The sound input/output unit 52 includes a speaker (sound output unit) that outputs a ringing sound when a call is made and the sound received from the entrance machine 4, and a microphone that inputs ambient sounds and transmits them to the entrance machine 4 ( sound input section).

The button 53 is an operation unit for starting transmission and reception of sound when receiving a call from the entrance machine 4, and for unlocking the front door of the collective entrance. The button 53 includes one or more buttons, for example, a receive button for starting transmission and reception of sound between the entrance machine 4 and the living room machine 5, and a button for unlocking the entrance door of the collective entrance. an unlock button; The button 53 may include other buttons such as a call end button for ending transmission and reception of sound.

In the intercom system having such a configuration, the user, who is a visitor, first inputs the room number of the visiting destination using the number buttons 41 on the entrance machine 4 and presses the call button 42 . The room unit 5 corresponding to the input number outputs a ringing tone from the sound input/output unit 52 . A resident in the living room performs a predetermined operation on a button 53 of the living room machine 5 in a state where the unlocking device 1 is not provided so as to cover the living room machine 5.例文帳に追加This causes the intercom system to unlock the entrance door.

An unlocking device 1 is attached to a living room unit 5 in order to unlock the front door even when there is no resident in the living room. The unlocking device 1 is a device for unlocking by operating a button 53 of the room unit 5 by exchanging information with the portable terminal 2 via the entrance machine 4 and the room unit 5 . A detailed configuration of the unlocking device 1 will be described later.

The mobile terminal 2 is a computer having a communication function, such as a smart phone or a tablet terminal, carried by a user. The mobile terminal 2 has a display section 21 and an operation section 22 . The display unit 21 includes a display device (display) that displays information, such as a liquid crystal display. The operation unit 22 includes an input device, such as a touch panel, that receives user operations.

The management server 3 is a computer that can communicate with the unlocking device 1 and the mobile terminal 2 . The management server 3 gives the mobile terminal 2 permission to unlock the front door. In addition, the management server 3 distributes to the unlocking device 1 an authentication condition for authentication using the captured image captured by the unlocking device 1 .

The outline of the processing executed by the unlocking system S according to this embodiment will be described below. The user inputs the room number in which the unlocking device 1 is installed in the entrance machine 4 with the number buttons 41 and presses the call button 42 . The room unit 5 corresponding to the input number displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4 on the display unit 51, and also outputs the ringing tone to the sound input/output unit 52. Output from

The unlocking device 1 detects call information issued by the room machine 5 in response to the operation of the entrance machine. As call information, the unlocking device 1 detects, for example, a ringing tone output from the sound input/output unit 52 of the room unit 5, a captured image displayed on the display unit 51 of the room unit 5, or light emission from the room unit 5. do.

The user directs an authentication target used for authentication to the imaging unit 44 of the entrance machine while calling the living room machine 5 from the entrance machine 4 . The object to be authenticated is, for example, the mobile terminal 2 displaying the unlock code.

The unlocking device 1 acquires authentication conditions for authentication using the captured image captured by the unlocking device 1 . The unlocking device 1 acquires authentication conditions from the management server 3 by wireless communication, or acquires authentication conditions stored in advance in the storage unit of the unlocking device 1, for example. The authentication condition is, for example, the unlock code condition included in the captured image.

The unlocking device 1 operates the button 53 of the room unit 5 so as to unlock the front door when the captured image of the display unit 51 of the room unit 5 captured after the call information is detected satisfies the authentication conditions. The intercom system unlocks the entrance door according to the operation of the button 53 of the room unit 5. - 特許庁

In this way, the unlocking device 1 unlocks the front door on the condition that the captured image obtained by capturing the display unit 51 of the living room device 5 after detecting the call information issued by the living room device 5 satisfies the authentication conditions. do. Therefore, the unlocking system S does not require the user to be notified of the security code for the front door or hand over the key in advance. You can unlock the front door without needing it.

[Configuration of mobile terminal 2]
FIG. 2 is a block diagram of the mobile terminal 2 according to this embodiment. In FIG. 2, arrows indicate main data flows, and there may be data flows other than those shown in FIG. In FIG. 2, each block does not show the configuration in units of hardware (apparatus), but the configuration in units of functions. As such, the blocks shown in FIG. 2 may be implemented within a single device, or may be implemented separately within multiple devices. Data exchange between blocks may be performed via any means such as a data bus, network, or portable storage medium.

The mobile terminal 2 has a storage unit 23 , a communication unit 24 , and a control unit 25 in addition to the display unit 21 and the operation unit 22 described above. The mobile terminal 2 is not limited to the specific configuration shown in FIG. The mobile terminal 2 is not limited to one device, and may be configured by connecting two or more physically separated devices by wire or wirelessly.

The storage unit 23 is a storage medium including a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk drive, and the like. The storage unit 23 stores programs executed by the control unit 25 in advance. The storage unit 23 may be provided outside the mobile terminal 2, in which case data may be exchanged with the control unit 25 via a network.

The communication unit 24 is a communication interface for wirelessly communicating with the management server 3 . The communication unit 24 includes a processor, a connector, an antenna, etc. for communication. The communication unit 24 performs predetermined processing on the communication signal received from the management server 3 to acquire data, and inputs the acquired data to the control unit 25 . Further, the communication unit 24 performs predetermined processing on data input from the control unit 25 to generate a communication signal, and transmits the generated communication signal to the management server 3 .

The control unit 25 has an unlocking permission acquisition unit 251 and a display control unit 252 . The control unit 25 is a processor such as a CPU (Central Processing Unit), and functions as an unlocking permission acquisition unit 251 and a display control unit 252 by executing programs stored in the storage unit 23 . At least part of the functions of the control unit 25 may be performed by an electric circuit. Also, at least part of the functions of the control unit 25 may be executed by a program executed via a network.

Processing performed by the mobile terminal 2 when the user unlocks the front door will be described below. The unlocking permission acquisition unit 251 acquires permission to unlock the entrance door from the management server 3 using the authentication information input by the user. FIG. 3(a) is a front view of the mobile terminal 2 displaying a login screen for accepting input of authentication information on the display unit 21. FIG.

The unlocking permission acquisition unit 251 receives input of authentication information and property information according to the user's operation of the operation unit 22 on the login screen. Authentication information includes, for example, a user ID (Identification), which is identification information for identifying a user, and a password. The property information is information indicating a property having an entrance door to be unlocked, such as a property name and a room number. The unlocking permission acquisition unit 251 transmits the received authentication information and property information to the management server 3 . The unlocking permission acquisition unit 251 may transmit only the authentication information to the management server 3 without accepting property information.

The management server 3 authenticates the mobile terminal 2 by comparing the authentication information received from the mobile terminal 2 with the authentication information stored in advance in the storage unit. In addition, the management server 3 receives the authentication information including the telephone number from the mobile terminal 2, transmits an SMS (Short Message Service) message addressed to the telephone number, and confirms that the message has arrived at the mobile terminal 2. You may authenticate the portable terminal 2 by confirming. When the mobile terminal 2 cannot be authenticated, the management server 3 transmits information indicating that the authentication has failed to the mobile terminal 2 . In the portable terminal 2, the unlocking permission acquisition unit 251 ends the process related to unlocking the front door when receiving the information indicating that the authentication has failed from the management server 3. FIG.

The management server 3 transmits unlocking permission to the mobile terminal 2 when the mobile terminal 2 can be authenticated. The management server 3, for example, sends unlocking permission including key information associated with a property having an entrance door to be unlocked, i.e., a place (for example, a room or a building) where the living room unit 5 is installed, to the mobile terminal 2. Send. The property having the entrance door to be unlocked may be the property indicated by the property information input in the mobile terminal 2, or may be the property associated with the user in advance.

The key information is, for example, a randomly or regularly generated character string, and is stored in the storage unit of the management server 3 in association with the place where the room machine 5 is installed. The management server 3 transmits unlocking permission including the generated key information to the mobile terminal 2 . Further, the management server 3 may transmit unlocking permission including an unlocking code generated according to a predetermined rule from the key information to the mobile terminal 2 .

When the mobile terminal 2 is authenticated by the management server 3 , the unlocking permission acquisition unit 251 acquires the unlocking permission transmitted by the management server 3 . The unlocking permission acquisition unit 251 generates an unlocking code according to a predetermined rule based on the key information included in the unlocking permission obtained. The unlock code is, for example, a one-dimensional or two-dimensional image generated by performing predetermined processing such as encoding processing on key information. Also, the unlock code may be a character string representing key information. Further, the unlocking permission acquisition unit 251 may acquire an unlocking code generated in advance by the management server 3 and included in the unlocking permission.

The unlocking permission acquisition unit 251 may generate an unlocking code corresponding to a one-time password generated based on the key information included in the obtained unlocking permission and the current time. In this case, the unlocking permission acquisition unit 251 generates a one-time password based on the key information and the current time. A one-time password is, for example, a character string that is valid within a predetermined period including the current time and invalid outside the period. The unlocking permission acquisition unit 251 can use a known method to generate a one-time password based on the key information and the current time. The unlock permission acquisition unit 251 generates an unlock code according to a predetermined rule based on the generated one-time password. As a result, the unlocking system S can limit the period during which the user can unlock the front door, thereby improving security.

The display control unit 252 causes the display unit 21 to display the unlocking code generated or acquired by the unlocking permission acquisition unit 251 . FIG. 3B is a front view of the mobile terminal 2 displaying an unlock code screen including an unlock code on the display unit 21. FIG.

The user operates the number buttons 41 and the call button 42 of the entrance machine 4 to call the room machine 5 in which the unlocking device 1 is installed. The user directs the portable terminal 2 displaying the unlock code as an authentication target to the imaging unit 44 of the entrance machine 4 while calling the living room machine 5 from the entrance machine 4 . The display unit 51 of the living room unit 5 displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, the captured image including the mobile terminal 2 displaying the unlock code. The unlocking device 1 , which will be described later, unlocks the front door based on the captured image of the display unit 51 of the room unit 5 .

[Configuration of unlocking device 1]
FIG. 4 is a front view of the unlocking device 1 and the room unit 5. FIG. In FIG. 4, each part hidden behind the unlocking device 1 is indicated by a broken line. In FIG. 4, the positional relationship between each part of the unlocking device 1 and each part of the room machine 5 when the unlocking device 1 is attached to the room machine 5 is represented by a dashed line.

The unlocking device 1 has a housing 10 that can be attached to the room unit 5 . The housing 10 is attached to the living room machine 5 on the front side of the living room machine 5 by, for example, an elastic member, a fastening member, or an adhesive member.

The unlocking device 1 has an imaging section 11 , a sound input/output section 12 , and a button pressing section 13 provided on the housing 10 . The imaging unit 11 is provided on the housing 10 in front of the indoor unit 5 at a position where the display unit 51 of the indoor unit 5 can be imaged. The imaging unit 11 includes a camera that images the display unit 51 of the room unit 5 .

The sound input/output unit 12 is provided on the housing 10 in front of the room unit 5 at a position where sound can be input/output to/from the sound input/output unit 52 of the room unit 5 . The sound input/output unit 12 includes a speaker (sound output unit) that emits sound to the living room unit 5 and a microphone (sound input unit) that receives the sound produced by the living room unit 5 .

The button pressing part 13 is provided on the housing 10 in front of the room unit 5 at a position where the button 53 of the room unit 5 can be operated. The button pressing section 13 includes a structure for switching the pressed state of the button 53 of the room unit 5 . When the button 53 includes a plurality of buttons, the button pressing portion 13 may include a plurality of structures capable of independently operating the plurality of buttons.

The button pressing unit 13 includes, for example, a drive mechanism such as a motor and an actuator, and switches the button 53 of the room unit 5 from a non-pressed state to a pressed state or presses the button 53 of the room unit 5 by the power of the drive mechanism. to the non-pressed state. The button pressing unit 13 may be a device provided separately from the housing 10 . In this case, the button pressing part 13 is attached to the room unit 5 by an elastic member, a fastening member, or an adhesive member independently of the housing 10 . The button pressing unit 13 receives a control signal from the control unit 16, which will be described later, by wireless communication, and switches the pressing state of the button 53 of the room unit 5 according to the received control signal.

FIG. 5 is a block diagram of the unlocking device 1 according to this embodiment. In FIG. 5, arrows indicate main data flows, and there may be data flows other than those shown in FIG. In FIG. 5, each block does not show the configuration in units of hardware (apparatus), but the configuration in units of functions. As such, the blocks shown in FIG. 5 may be implemented within a single device, or may be implemented separately within multiple devices. Data exchange between blocks may be performed via any means such as a data bus, network, or portable storage medium.

The unlocking device 1 includes a storage unit 14 , a communication unit 15 , and a control unit 16 in addition to the imaging unit 11 , the sound input/output unit 12 and the button pressing unit 13 described above. The unlocking device 1 is not limited to the specific configuration shown in FIG. The unlocking device 1 is not limited to one device, and may be configured by connecting two or more physically separated devices by wire or wirelessly.

The storage unit 14 is a storage medium including ROM, RAM, hard disk drive, and the like. The storage unit 14 stores programs executed by the control unit 16 in advance. The storage unit 14 may be provided outside the unlocking device 1, in which case data may be exchanged with the control unit 16 via a network.

The communication unit 15 is a communication interface for wirelessly communicating with the management server 3 . The communication unit 15 includes a processor, connector, antenna, etc. for communication. The communication unit 15 performs predetermined processing on the communication signal received from the management server 3 to acquire data, and inputs the acquired data to the control unit 16 . Further, the communication unit 15 performs predetermined processing on data input from the control unit 16 to generate a communication signal, and transmits the generated communication signal to the management server 3 .

The control unit 16 has a call information detection unit 161 , a room unit operation unit 162 and an authentication condition acquisition unit 163 . The control unit 16 is a processor such as a CPU, for example, and functions as a call information detection unit 161 , a room unit operation unit 162 and an authentication condition acquisition unit 163 by executing programs stored in the storage unit 14 . At least part of the functions of the control unit 16 may be performed by an electric circuit. Also, at least part of the functions of the control unit 16 may be executed by a program executed via a network.

The processing performed by the unlocking device 1 when the user unlocks the front door will be described below. FIG. 6(a) is a schematic diagram for explaining a configuration for the unlocking device 1 to detect call information. In FIG. 6( a ), the positions of the imaging section 11 , the sound input/output section 12 and the button pressing section 13 of the unlocking device 1 are schematically shown on the room unit 5 .

The call information detection unit 161 detects call information issued by the room unit 5 in response to the operation of the entrance unit 4 . The call information detection unit 161 uses the sound input/output unit 12, for example, to detect the call sound emitted by the sound input/output unit 52 (speaker) of the living room unit 5 as call information. In order to increase the accuracy with which the calling information detection unit 161 detects the calling sound, the storage unit 14 stores in advance the calling sound emitted by the sound input/output unit 52 of the room unit 5 or feature information indicating the characteristics of the calling sound. may be In this case, if all or part of the sound input to the sound input/output unit 12 matches or resembles the ringing sound or the feature information stored in the storage unit 14, the calling information detection unit 161 detects the ringing sound. Determined as detected. Thereby, the unlocking device 1 can start the process for unlocking the front door using the ring tone provided by the intercom system.

Also, the call information detection unit 161 may detect the call information based on the captured image of the display unit 51 (display) of the living room unit 5 captured using the imaging unit 11 . In this case, the call information detection unit 161 performs known moving object detection processing on the captured image on the display unit 51, and detects movement of the subject in the range where the captured image is captured as call information. This allows the unlocking device 1 to start processing for unlocking the front door using the image of the outside of the front door provided by the intercom system.

Further, the call information detection unit 161 may detect the call information based on the display unit 51 of the room unit 5 or light emission of the lamp. In this case, the call information detection unit 161 uses the imaging unit 11 or other light detection module to detect that the display unit 51 or the lamp provided in the room unit 5 emits light as call information. As a result, the unlocking device 1 can start the processing for unlocking the front door by using the light emitted from the room unit 5 at the time of calling.

When the call information detection unit 161 detects the call information, the room unit operating unit 162 uses the button pressing unit 13 to cause the entrance unit 4 and the room unit 5 to start transmitting and receiving sound. Operate 5. The room unit operating unit 162, for example, causes the button pressing unit 13 to switch the depressed state of the receive button of the buttons 53 of the room unit 5 so as to start sending and receiving sound between the entrance unit 4 and the room unit 5. . As a result, transmission and reception of sound between the sound input/output unit 43 of the entrance machine 4 and the sound input/output unit 52 of the room unit 5 is started. After the sound transmission/reception is started, the room unit operation unit 162 may use the sound input/output unit 12 to output a voice such as "Please hold the unlock code over the camera." In addition, if the operation for starting transmission and reception of sound between the entrance machine 4 and the living room machine 5 is not necessary for unlocking the entrance door, the living room machine operation unit 162 instructs the living room machine 5 to perform the operation. You don't have to do it.

FIG. 6(b) is a schematic diagram for explaining the configuration for the unlocking device 1 to unlock the entrance door based on the captured image. In FIG. 6(b), the positions of the imaging section 11, the sound input/output section 12, and the button pressing section 13 of the unlocking device 1 are schematically shown on the room unit 5. As shown in FIG.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the captured image captured by the imaging unit 11 of the unlocking device 1 . For example, the authentication condition acquisition unit 163 acquires authentication conditions from the management server 3 by wireless communication, or acquires authentication conditions stored in advance in the storage unit 14 of the unlocking device 1 .

The authentication condition is the unlock code condition included in the captured image. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 . Based on the captured image on the display unit 51 of the living room machine 5 and the key information included in the authentication conditions, the living room machine operation unit 162, which will be described later, determines whether or not to unlock the entrance door.

For example, the management server 3 acquires key information stored in advance in the storage unit of the management server 3, and transmits authentication conditions including the acquired key information to the unlocking device 1 attached to the room unit 5 by wireless communication. . The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . Further, the administrator of the unlocking device 1 causes the storage unit 14 of the unlocking device 1 to store the authentication conditions in advance by connecting a storage medium such as a memory card storing the authentication conditions to the unlocking device 1. may

The authentication conditions may differ for each property having an entrance door to be unlocked, that is, for each location where the living room unit 5 is installed. In this case, the management server 3 acquires key information pre-associated with the location where the room unit 5 is installed from the storage unit of the management server 3, and attaches authentication conditions including the key information to the room unit 5. wireless communication to the unlocking device 1. The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . As a result, the unlocking system S can control the properties that can be unlocked by the user, thereby improving security.

The living room unit operation unit 162 acquires the captured image of the display unit 51 of the living room unit 5 captured by the imaging unit 11 after the calling information detection unit 161 detects the calling information. At this time, the user points the mobile terminal 2 displaying the unlocking code as an authentication object toward the imaging unit 44 of the entrance machine 4 . The display unit 51 of the living room unit 5 displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, the captured image including the mobile terminal 2 displaying the unlock code. there is

The living room unit operation unit 162 determines whether or not the acquired captured image satisfies the authentication condition acquired by the authentication condition acquisition unit 163 . The living room unit operation unit 162 acquires the unlock code included in the captured image displayed on the display unit 51 from the captured image of the display unit 51 of the living room unit 5 captured by the imaging unit 11, for example. The room unit operation unit 162 specifies the key information corresponding to the unlock code by performing predetermined processing such as decryption processing on the unlock code included in the captured image. If the key information corresponding to the unlock code acquired from the captured image matches the key information included in the authentication condition acquired by the authentication condition acquisition unit 163, the room unit operation unit 162 satisfies the authentication condition. Otherwise, it is determined that the authentication conditions are not satisfied.

Further, when an unlock code corresponding to a one-time password is used, the room unit operation unit 162, based on the key information included in the authentication conditions acquired by the authentication condition acquisition unit 163 and the current time, A one-time password is generated by the same method as the portable terminal 2. - 特許庁The room unit operation unit 162 specifies the one-time password corresponding to the unlock code by performing predetermined processing such as decryption processing on the unlock code included in the captured image. The one-time password corresponding to the unlocking code acquired from the captured image and the one-time password generated from the key information included in the authentication conditions acquired by the authentication condition acquisition unit 163 match. If not, it is determined that the authentication conditions are satisfied, and if not, it is determined that the authentication conditions are not satisfied. As a result, the unlocking system S can limit the period during which the user can unlock the front door, thereby improving security.

In this embodiment, the unlocking device 1 determines whether or not the captured image satisfies the authentication conditions. may be determined. In this case, the room unit operation unit 162 transmits the captured image to the external device, and the external device receives the determination result of determining whether the captured image satisfies the authentication condition by the above-described method.

The living room machine operating unit 162 operates the living room machine 5 to unlock the entrance door when it is determined that the authentication conditions are satisfied. That is, the room unit operation unit 162 functions as an unlock control unit that performs control for unlocking the entrance door. The room unit operation unit 162 unlocks the front door by, for example, causing the button pressing unit 13 to switch the pressed state of the unlock button among the buttons 53 of the room unit 5 so as to unlock the front door. control. If the room unit operation unit 162 determines that the authentication conditions are not satisfied, the process ends without unlocking the front door.

As a result, the unlocking system S requires a person in the living room to manually unlock the door by pointing the mobile terminal 2 displaying the unlocking code as an object to be authenticated toward the camera of the intercom system. You can unlock the front door without

[Flowchart of unlocking method]
FIG. 7 is a diagram showing a flowchart of an unlocking method executed by the unlocking device 1 according to this embodiment. In the unlocking device 1, the call information detection unit 161 detects call information issued by the room unit 5 in response to the operation of the entrance machine 4 (S11). The call information detection unit 161 detects, as call information, for example, a ringing sound output from the sound input/output unit 52 of the room unit 5, a captured image displayed on the display unit 51 of the room unit 5, or light emission of the room unit 5. To detect.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the captured image captured by the imaging unit 11 of the unlocking device 1 (S12). The authentication condition is the unlock code condition included in the captured image. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 .

The room unit operation unit 162 acquires the captured image of the display unit 51 of the room unit 5 captured by the imaging unit 11 after the call information detection unit 161 detects the call information (S13). At this time, the user points the mobile terminal 2 displaying the unlocking code as an authentication object toward the imaging unit 44 of the entrance machine 4 . The display unit 51 of the living room unit 5 displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, the captured image including the mobile terminal 2 displaying the unlock code. there is

The living room unit operation unit 162 determines whether or not the acquired captured image satisfies the authentication condition acquired by the authentication condition acquisition unit 163 . When it is determined that the authentication conditions are satisfied (YES in S14), the living room machine operating section 162 operates the living room machine 5 to unlock the entrance door (S15). That is, the room unit operation unit 162 functions as an unlock control unit that performs control for unlocking the entrance door. The room unit operation unit 162 unlocks the front door by, for example, causing the button pressing unit 13 to switch the pressed state of the unlock button among the buttons 53 of the room unit 5 so as to unlock the front door. control. When it is determined that the authentication conditions are not satisfied (NO in S14), the living room unit operating section 162 terminates the process without unlocking the entrance door.

[Effects of Embodiment]
In the unlocking system S according to the present embodiment, the unlocking device 1 detects the call information issued by the room unit 5, and then the captured image of the display unit 51 of the room unit 5 satisfies the authentication conditions. As such, unlock the front door. Therefore, the unlocking system S does not require the user to be notified of the security code for the entrance or hand over the key in advance, so that a person in the room can manually unlock the door while maintaining security. The front door can be unlocked without the need for In addition, since the unlocking system S functions only by attaching the unlocking device 1 to the room unit 5, it can be introduced at low cost without changing the intercom system of the building or remodeling the room unit 5.例文帳に追加

[Modification]
In the above-described embodiment, it is determined whether or not to unlock the entrance door based on the captured image including the mobile terminal 2 displaying the unlock code as the authentication object. , it is determined whether or not to unlock the entrance door based on the captured image including the user's body as the authentication object. In the following, in this modified example, different parts from the above-described embodiment will be mainly described. Note that the mobile terminal 2 is not used in this modification.

The user operates the number buttons 41 and the call button 42 of the entrance machine 4 to call the room machine 5 in which the unlocking device 1 is installed. While calling the living room machine 5 from the entrance machine 4, the user directs a predetermined part of the user's body, such as the face or the palm, to the imaging unit 44 of the entrance machine 4 as an object to be authenticated. The display unit 51 of the living room unit 5 displays a captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, a captured image including the user's body.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the captured image captured by the imaging unit 11 of the unlocking device 1 . The authentication condition is a condition of biometric information such as a human face, iris, fingerprint, etc. included in the captured image. The authentication condition includes, for example, feature information such as a feature amount extracted from predetermined biometric information such as the face, iris, fingerprint, etc. of the user who is permitted to unlock the front door. A known feature extraction method is used to extract feature information such as a feature amount from biometric information.

For example, the management server 3 acquires user characteristic information stored in advance in the storage unit of the management server 3, and wirelessly communicates authentication conditions including the acquired characteristic information to the unlocking device 1 attached to the room unit 5. Send. The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . Further, the administrator of the unlocking device 1 causes the storage unit 14 of the unlocking device 1 to store the authentication conditions in advance by connecting a storage medium such as a memory card storing the authentication conditions to the unlocking device 1. may

The authentication conditions may differ for each property having an entrance door to be unlocked, that is, for each location where the living room unit 5 is installed. In this case, the management server 3 acquires feature information pre-associated with the location where the room unit 5 is installed from the storage unit of the management server 3, and attaches authentication conditions including the feature information to the room unit 5. wireless communication to the unlocking device 1. The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . As a result, the unlocking system S can control the properties that can be unlocked by the user, thereby improving security.

The living room unit operation unit 162 acquires the captured image of the display unit 51 of the living room unit 5 captured by the imaging unit 11 after the calling information detection unit 161 detects the calling information. At this time, the user faces the imaging unit 44 of the entrance machine 4 with a predetermined part of the user's body, such as the face or the palm, as an object to be authenticated. The display unit 51 of the living room unit 5 displays a captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, a captured image including the user's body.

The living room unit operation unit 162 determines whether or not the acquired captured image satisfies the authentication condition acquired by the authentication condition acquisition unit 163 . The living room unit operation unit 162 uses a known feature extraction method from the captured image of the display unit 51 of the living room unit 5 captured by the imaging unit 11, for example. Acquire the feature information of the human being. The living room unit operation unit 162 determines whether or not the feature information of the person acquired from the captured image matches the feature information of the user who is permitted to unlock the front door included in the authentication conditions acquired by the authentication condition acquisition unit 163. If they are similar, it is determined that the authentication conditions are satisfied, and if not, it is determined that the authentication conditions are not satisfied.

The living room machine operating unit 162 operates the living room machine 5 to unlock the entrance door when it is determined that the authentication conditions are satisfied. The living room unit operation unit 162, for example, causes the button pressing unit 13 to switch the pressed state of the unlock button among the buttons 53 of the living room unit 5 so as to unlock the front door. If the room unit operation unit 162 determines that the authentication conditions are not satisfied, the process ends without unlocking the entrance door.

As a result, the unlocking system S unlocks the front door without the need for a person in the living room to manually unlock the door by pointing the user's body as an object to be authenticated toward the camera of the intercom system. can do.

<Second embodiment>
In the first embodiment, the entrance door is unlocked by operating the room unit, whereas in the present embodiment, the entrance door is unlocked by transmitting an unlocking signal to the unlocking device attached to the entrance door. Unlock. Differences from the first embodiment will be mainly described below.

[Configuration of unlocking system S]
FIG. 8 is a schematic diagram of the unlocking system S according to this embodiment. The unlocking system S according to this embodiment uses an intercom system installed in a house (for example, a detached house) that is not an apartment complex to unlock the front door. In this embodiment, the intercom system may not have the function of unlocking the front door remotely. Also, the entrance machine 4 may not have a button for inputting the room number, and the room machine 5 may not have an unlock button for unlocking the entrance door.

The unlocking system S further comprises, in addition to the arrangement of FIG. 1, an unlocking device 6 attached to the entrance door. The unlocking device 6 is a device for unlocking the entrance door. An entrance door includes a door (opener) with a lock that is locked and unlocked by a thumb-turn. The unlocking device 6 is attached to a position covering the thumb-turn on the indoor side of the entrance of the building (that is, the side on which the thumb-turn is provided). When the unlocking device 6 receives a predetermined unlocking signal from the unlocking device 1 through wireless communication, the unlocking device 6 operates the thumb-turn to unlock the front door.

FIG. 9 is a block diagram of the unlocking device 1 according to this embodiment. The control unit 16 of the unlocking device 1 further includes an unlock control unit 164 in addition to the call information detection unit 161 , the room unit operation unit 162 and the authentication condition acquisition unit 163 .

The processing performed by the unlocking device 1 when the user unlocks the front door will be described below. FIG. 10(a) is a schematic diagram for explaining a configuration for the unlocking device 1 to detect call information. In FIG. 10( a ), the positions of the imaging section 11 , the sound input/output section 12 and the button pressing section 13 of the unlocking device 1 are schematically shown on the room unit 5 .

The call information detection unit 161 detects call information issued by the room unit 5 in response to the operation of the entrance unit 4 . The call information detection unit 161 uses the sound input/output unit 12, for example, to detect the call sound emitted by the sound input/output unit 52 (speaker) of the living room unit 5 as call information. In order to increase the accuracy with which the calling information detection unit 161 detects the calling sound, the storage unit 14 stores in advance the calling sound emitted by the sound input/output unit 52 of the room unit 5 or feature information indicating the characteristics of the calling sound. may be In this case, if all or part of the sound input to the sound input/output unit 12 matches or resembles the ringing sound or the feature information stored in the storage unit 14, the calling information detection unit 161 detects the ringing sound. Determined as detected. Thereby, the unlocking device 1 can start the process for unlocking the front door using the ring tone provided by the intercom system.

Also, the call information detection unit 161 may detect the call information based on the captured image of the display unit 51 (display) of the living room unit 5 captured using the imaging unit 11 . In this case, the call information detection unit 161 performs known moving object detection processing on the captured image on the display unit 51, and detects movement of the subject in the range where the captured image is captured as call information. This allows the unlocking device 1 to start processing for unlocking the front door using the image of the outside of the front door provided by the intercom system.

Further, the call information detection unit 161 may detect the call information based on the display unit 51 of the room unit 5 or light emission of the lamp. In this case, the call information detection unit 161 uses the imaging unit 11 or other light detection module to detect that the display unit 51 or the lamp provided in the room unit 5 emits light as call information. As a result, the unlocking device 1 can start the processing for unlocking the front door by using the light emitted from the room unit 5 at the time of calling.

When the call information detection unit 161 detects the call information, the room unit operating unit 162 uses the button pressing unit 13 to cause the entrance unit 4 and the room unit 5 to start transmitting and receiving sound. Operate 5. The room unit operating unit 162, for example, causes the button pressing unit 13 to switch the depressed state of the receive button of the buttons 53 of the room unit 5 so as to start sending and receiving sound between the entrance unit 4 and the room unit 5. . As a result, transmission and reception of sound between the sound input/output unit 43 of the entrance machine 4 and the sound input/output unit 52 of the room unit 5 is started. After the sound transmission/reception is started, the room unit operation unit 162 may use the sound input/output unit 12 to output a voice such as "Please hold the unlock code over the camera." In addition, if the operation for starting transmission and reception of sound between the entrance machine 4 and the living room machine 5 is not necessary for unlocking the entrance door, the living room machine operation unit 162 instructs the living room machine 5 to perform the operation. You don't have to do it.

FIG. 10(b) is a schematic diagram for explaining a configuration for the unlocking device 1 to unlock the entrance door based on the captured image. In FIG. 10(b), the positions of the imaging unit 11 and the sound input/output unit 12 of the unlocking device 1 are schematically shown on the room unit 5. As shown in FIG.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the captured image captured by the imaging unit 11 of the unlocking device 1 . For example, the authentication condition acquisition unit 163 acquires authentication conditions from the management server 3 by wireless communication, or acquires authentication conditions stored in advance in the storage unit 14 of the unlocking device 1 .

The authentication condition is the unlock code condition included in the captured image. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 . The unlock control unit 164, which will be described later, determines whether or not to unlock the front door based on the captured image on the display unit 51 of the living room unit 5 and the key information included in the authentication conditions.

For example, the management server 3 acquires key information stored in advance in the storage unit of the management server 3, and transmits authentication conditions including the acquired key information to the unlocking device 1 attached to the room unit 5 by wireless communication. . The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . Further, the administrator of the unlocking device 1 causes the storage unit 14 of the unlocking device 1 to store the authentication conditions in advance by connecting a storage medium such as a memory card storing the authentication conditions to the unlocking device 1. may

The authentication conditions may differ for each property having an entrance to be unlocked, that is, for each location where the room unit 5 is installed. In this case, the management server 3 acquires key information pre-associated with the location where the room unit 5 is installed from the storage unit of the management server 3, and attaches authentication conditions including the key information to the room unit 5. wireless communication to the unlocking device 1. The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . As a result, the unlocking system S can control the properties that can be unlocked by the user, thereby improving security.

The unlock control unit 164 acquires the captured image of the display unit 51 of the room unit 5 captured by the imaging unit 11 after the calling information detection unit 161 detects the calling information. At this time, the user points the mobile terminal 2 displaying the unlocking code as an authentication object toward the imaging unit 44 of the entrance machine 4 . The display unit 51 of the living room unit 5 displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, the captured image including the mobile terminal 2 displaying the unlock code. there is

Unlocking control section 164 determines whether or not the acquired captured image satisfies the authentication condition acquired by authentication condition acquisition section 163 . The unlock control unit 164 acquires the unlock code included in the captured image displayed on the display unit 51 from the captured image of the display unit 51 of the room unit 5 captured by the imaging unit 11, for example. The unlock control unit 164 identifies the key information corresponding to the unlock code by performing predetermined processing such as decryption processing on the unlock code included in the captured image. The unlock control unit 164 satisfies the authentication condition when the key information corresponding to the unlock code acquired from the captured image matches the key information included in the authentication condition acquired by the authentication condition acquisition unit 163. Otherwise, it is determined that the authentication conditions are not satisfied.

Further, when an unlock code corresponding to a one-time password is used, unlock control unit 164, based on the key information included in the authentication conditions acquired by authentication condition acquisition unit 163 and the current time, A one-time password is generated by the same method as the portable terminal 2. - 特許庁The unlock control unit 164 specifies the one-time password corresponding to the unlock code by performing predetermined processing such as decryption processing on the unlock code included in the captured image. The unlock control unit 164 matches the one-time password corresponding to the unlock code acquired from the captured image with the one-time password generated from the key information included in the authentication conditions acquired by the authentication condition acquisition unit 163. If not, it is determined that the authentication conditions are satisfied, and if not, it is determined that the authentication conditions are not satisfied. As a result, the unlocking system S can limit the period during which the user can unlock the front door, thereby improving security.

Further, the unlocking control unit 164 may determine whether or not to unlock the front door based on the captured image including the user's body as the authentication object, as in the modification of the first embodiment. . In this case, the unlock control unit 164 determines whether or not the acquired captured image satisfies the authentication conditions of the biometric information such as the human face, iris, and fingerprint acquired by the authentication condition acquisition unit 163 . For example, the unlocking control unit 164 uses a known feature extraction method from the captured image of the display unit 51 of the room unit 5 captured by the imaging unit 11, and extracts the image included in the captured image displayed on the display unit 51. Acquire the feature information of the human being. The unlock control unit 164 determines whether or not the feature information of the person acquired from the captured image matches the feature information of the user who is permitted to unlock the entrance door and is included in the authentication conditions acquired by the authentication condition acquisition unit 163. If they are similar, it is determined that the authentication conditions are satisfied, and if not, it is determined that the authentication conditions are not satisfied.

In this embodiment, the unlocking device 1 determines whether or not the captured image satisfies the authentication conditions. may be determined. In this case, the unlock control unit 164 transmits the captured image to the external device, and the external device receives the determination result of determining whether or not the captured image satisfies the authentication condition by the above-described method.

The unlock control unit 164 performs control for unlocking the front door when it is determined that the authentication conditions are satisfied. The unlocking control unit 164, for example, transmits an unlocking signal for unlocking the entrance door to the unlocking device 6. FIG. The unlocking device 6 operates the thumb-turn to unlock the entrance door on condition that the unlocking signal is received from the unlocking device 1. - 特許庁If the unlocking control unit 164 determines that the authentication conditions are not satisfied, the unlocking control unit 164 ends the process without performing control for unlocking the entrance door.

As a result, the unlocking system S allows a person in the living room to manually unlock the mobile terminal 2 displaying the unlocking code as an authentication object or by pointing a predetermined part of the user's body toward the camera of the intercom system. The front door can be unlocked without the need to unlock it with a .

[Flowchart of unlocking method]
FIG. 11 is a diagram showing a flowchart of an unlocking method executed by the unlocking device 1 according to this embodiment. In the unlocking device 1, the call information detection section 161 detects call information issued by the room machine 5 in response to the operation of the entrance machine 4 (S21). The call information detection unit 161 detects, as call information, for example, a ringing sound output from the sound input/output unit 52 of the room unit 5, a captured image displayed on the display unit 51 of the room unit 5, or light emission of the room unit 5. To detect.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the captured image captured by the imaging unit 11 of the unlocking device 1 (S22). The authentication condition is the unlock code condition included in the captured image. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 .

The unlock control unit 164 acquires the captured image of the display unit 51 of the room unit 5 captured by the imaging unit 11 after the calling information detection unit 161 detects the calling information (S23). At this time, the user points the mobile terminal 2 displaying the unlocking code as an authentication object toward the imaging unit 44 of the entrance machine 4 . The display unit 51 of the living room unit 5 displays the captured image of the area outside the entrance door captured by the imaging unit 44 of the entrance unit 4, that is, the captured image including the mobile terminal 2 displaying the unlock code. there is

Unlocking control section 164 determines whether or not the acquired captured image satisfies the authentication condition acquired by authentication condition acquisition section 163 . When the unlock control unit 164 determines that the authentication conditions are satisfied (YES in S24), the unlock control unit 164 transmits an unlock signal for unlocking the front door to the unlocking device 6 (S25). The unlocking device 6 operates the thumb-turn to unlock the entrance door on condition that the unlocking signal is received from the unlocking device 1. - 特許庁When the unlock control unit 164 determines that the authentication conditions are not satisfied (NO in S24), the process ends without unlocking the entrance door.

In the unlocking system S according to the present embodiment, the unlocking device 1 detects the call information issued by the room unit 5, and then the captured image of the display unit 51 of the room unit 5 satisfies the authentication conditions. As such, unlock the front door. Therefore, the unlocking system S does not require the user to be notified of the security code for the entrance or hand over the key in advance, so that a person in the room can manually unlock the door while maintaining security. The front door can be unlocked without the need for

<Third Embodiment>
In the first embodiment and the second embodiment, it is determined whether or not the image captured by the living room device 5 satisfies the authentication conditions. It is determined whether or not the condition is satisfied. Differences from the first embodiment and the second embodiment will be mainly described below.

[Configuration of unlocking system S]
FIG. 12 is a block diagram of the mobile terminal 2 according to this embodiment. The control unit 25 of the mobile terminal 2 further has a sound generation unit 253 in addition to the unlocking permission acquisition unit 251 and the display control unit 252 . The mobile terminal 2 further has a sound output unit 26 such as a speaker.

As in the first embodiment, when the mobile terminal 2 is authenticated by the management server 3 based on the authentication information input by the user, the unlocking permission acquisition unit 251 receives the unlocking permission transmitted by the management server 3. get. The sound generation unit 253 generates an unlocking sound according to a predetermined rule based on the key information included in the obtained unlocking permission. The storage unit 23 of the mobile terminal 2 pre-stores, for example, correspondence relationships between characters and predetermined sounds. The sound generation unit 253 generates an unlocking sound by sequentially connecting sounds corresponding to characters included in the key information based on the correspondence relationship. Further, the sound generator 253 may acquire an unlocking sound generated in advance by the management server 3, which includes unlocking permission.

The sound generator 253 may generate an unlocking sound corresponding to the one-time password generated based on the key information included in the obtained unlocking permission and the current time. In this case, the sound generator 253 generates a one-time password based on the key information and the current time. A one-time password is, for example, a character string that is valid within a predetermined period including the current time and invalid outside the period. The sound generator 253 can use known methods to generate the one-time password based on the key information and the current time. The sound generator 253 generates an unlocking sound according to the rules described above, based on the generated one-time password. As a result, the unlocking system S can limit the period during which the user can unlock the front door, thereby improving security.

The sound generation unit 253 outputs the generated or acquired unlocking sound from the sound output unit 26 . The user operates the call button 42 of the entrance machine 4 to call the room machine 5 in which the unlocking device 1 is installed. The user brings the portable terminal 2 outputting the unlocking sound closer to the sound input/output unit 43 of the entrance machine 4 while calling the room machine 5 from the entrance machine 4 . The sound input/output unit 52 of the room machine 5 emits the unlocking sound received from the entrance machine 4 . The unlocking device 1 described later unlocks the front door based on the unlocking sound emitted by the sound input/output unit 52 of the room unit 5 , that is, the unlocking sound emitted by the mobile terminal 2 .

The unlocking device 1 has a configuration similar to that of FIG. The processing performed by the unlocking device 1 when the user unlocks the front door will be described below. As described with reference to FIG. 10( a ), the call information detection unit 161 detects call information issued by the room unit 5 in response to the door unit 4 being operated.

When the call information detection unit 161 detects the call information, the room unit operating unit 162 uses the button pressing unit 13 to cause the entrance unit 4 and the room unit 5 to start transmitting and receiving sound. Operate 5. The room unit operating unit 162, for example, causes the button pressing unit 13 to switch the depressed state of the receive button of the buttons 53 of the room unit 5 so as to start sending and receiving sound between the entrance unit 4 and the room unit 5. . As a result, transmission and reception of sound between the sound input/output unit 43 of the entrance machine 4 and the sound input/output unit 52 of the room unit 5 is started. After the sound transmission/reception is started, the room unit operating unit 162 may use the sound input/output unit 12 to output a voice such as "Please input the unlocking sound".

FIG. 13 is a schematic diagram for explaining a configuration for the unlocking device 1 to unlock the entrance door based on the unlocking sound. In FIG. 13 , the positions of the imaging section 11 and the sound input/output section 12 of the unlocking device 1 are schematically shown on the room unit 5 .

After sound transmission/reception is started between the sound input/output unit 43 of the entrance machine 4 and the sound input/output unit 52 of the room unit 5, the sound input/output unit 12 of the unlocking device 1 receives the sound of the room unit 5. The unlocking sound emitted by the output unit 52 , that is, the unlocking sound emitted by the mobile terminal 2 is accepted.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the unlocking sound received by the sound input/output unit 12 of the unlocking device 1 . For example, the authentication condition acquisition unit 163 acquires authentication conditions from the management server 3 by wireless communication, or acquires authentication conditions stored in advance in the storage unit 14 of the unlocking device 1 .

The authentication condition is an unlocking sound condition for permitting unlocking. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 . The unlocking control unit 164, which will be described later, determines whether or not to unlock the front door based on the unlocking sound received by the sound input/output unit 12 and the key information included in the authentication conditions.

For example, the management server 3 acquires key information stored in advance in the storage unit of the management server 3, and transmits authentication conditions including the acquired key information to the unlocking device 1 attached to the room unit 5 by wireless communication. . The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . Further, the administrator of the unlocking device 1 causes the storage unit 14 of the unlocking device 1 to store the authentication conditions in advance by connecting a storage medium such as a memory card storing the authentication conditions to the unlocking device 1. may

The authentication conditions may differ for each property having an entrance to be unlocked, that is, for each location where the room unit 5 is installed. In this case, the management server 3 acquires key information pre-associated with the location where the room unit 5 is installed from the storage unit of the management server 3, and attaches authentication conditions including the key information to the room unit 5. wireless communication to the unlocking device 1. The unlocking device 1 stores the authentication conditions received from the management server 3 in the storage unit 14 . As a result, the unlocking system S can control the properties that can be unlocked by the user, thereby improving security.

The unlocking control unit 164 detects the unlocking sound emitted by the sound input/output unit 52 of the room unit 5, that is, the unlocking sound emitted by the mobile terminal 2, which the sound input/output unit 12 receives after the call information detection unit 161 detects the call information. Get lock sound.

Unlock control unit 164 determines whether the acquired unlocking sound satisfies the authentication condition acquired by authentication condition acquisition unit 163 . The unlocking control unit 164 identifies the key information indicated by the acquired unlocking sound. In the storage unit 14 of the unlocking device 1, for example, correspondence relationships between characters and predetermined sounds that are common to the mobile terminal 2 are stored in advance. The unlocking control unit 164 identifies the key information indicated by the unlocking sound by sequentially connecting the characters indicated by the sound including the unlocking sound based on the correspondence relationship.

If the key information indicated by the unlocking sound matches the key information included in the authentication condition acquired by the authentication condition acquisition unit 163, the unlocking control unit 164 determines that the authentication condition is satisfied. It is determined that the authentication conditions are not satisfied.

Further, when an unlock code corresponding to a one-time password is used, unlock control unit 164, based on the key information included in the authentication conditions acquired by authentication condition acquisition unit 163 and the current time, A one-time password is generated by the same method as the portable terminal 2. - 特許庁The unlocking control unit 164 specifies the one-time password indicated by the unlocking sound by connecting the characters indicated by the sound including the unlocking sound in order based on the correspondence relationship described above. If the one-time password indicated by the unlocking sound matches the one-time password generated from the key information included in the authentication conditions acquired by the authentication condition acquisition unit 163, the unlock control unit 164 sets the authentication conditions. If not, it is determined that the authentication conditions are not satisfied. As a result, the unlocking system S can limit the period during which the user can unlock the front door, thereby improving security.

In this embodiment, the unlocking device 1 determines whether or not the unlocking sound satisfies the authentication conditions. It may be determined whether In this case, the unlocking control unit 164 transmits the unlocking sound to the external device, and receives the determination result of the external device determining whether the unlocking sound satisfies the authentication condition by the above-described method.

The unlock control unit 164 performs control for unlocking the front door when it is determined that the authentication conditions are satisfied. The unlocking control unit 164, for example, transmits an unlocking signal for unlocking the entrance door to the unlocking device 6. FIG. The unlocking device 6 operates the thumb-turn to unlock the entrance door on condition that the unlocking signal is received from the unlocking device 1. - 特許庁If the unlocking control unit 164 determines that the authentication conditions are not satisfied, the unlocking control unit 164 ends the process without performing control for unlocking the entrance door.

As a result, the unlocking system S can unlock the entrance door by inputting the unlocking sound emitted by the mobile terminal 2 owned by the user into the intercom system, without requiring the person in the living room to unlock the door manually. can be locked.

[Flowchart of unlocking method]
FIG. 14 is a diagram showing a flowchart of an unlocking method executed by the unlocking device 1 according to this embodiment. In the unlocking device 1, the call information detection unit 161 detects call information issued by the room unit 5 in response to the operation of the entrance machine 4 (S31). The call information detection unit 161 detects, as call information, for example, a ringing sound output from the sound input/output unit 52 of the room unit 5, a captured image displayed on the display unit 51 of the room unit 5, or light emission of the room unit 5. To detect.

The authentication condition acquisition unit 163 acquires authentication conditions for authentication using the unlocking sound received by the sound input/output unit 12 of the unlocking device 1 (S32). The authentication condition is an unlocking sound condition for permitting unlocking. The authentication condition includes, for example, key information included in unlocking permission that the mobile terminal 2 has acquired from the management server 3 .

The unlocking control unit 164 detects the unlocking sound emitted by the sound input/output unit 52 of the room unit 5, that is, the unlocking sound emitted by the mobile terminal 2, which the sound input/output unit 12 receives after the call information detection unit 161 detects the call information. A lock sound is acquired (S33).

Unlock control unit 164 determines whether the acquired unlocking sound satisfies the authentication condition acquired by authentication condition acquisition unit 163 . When the unlock control unit 164 determines that the authentication conditions are satisfied (YES in S34), the unlock control unit 164 transmits an unlock signal for unlocking the entrance door to the unlocking device 6 (S35). The unlocking device 6 operates the thumb-turn to unlock the entrance door on condition that the unlocking signal is received from the unlocking device 1. - 特許庁When the unlock control unit 164 determines that the authentication conditions are not satisfied (NO in S34), the process ends without unlocking the entrance door.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. be. For example, all or part of the device can be functionally or physically distributed and integrated in arbitrary units. In addition, new embodiments resulting from arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

The processor of the unlocking device 1 is the subject of each step (process) included in the unlocking method shown in FIGS. That is, the processor of the unlocking device 1 reads a program for executing the unlocking method shown in FIGS. By doing so, the unlocking method shown in FIGS. 7, 11 and 14 is executed. Some of the steps included in the unlocking methods shown in FIGS. 7, 11 and 14 may be omitted, the order between the steps may be changed, and a plurality of steps may be performed in parallel.

S unlocking system 1 unlocking device 10 housing 11 imaging unit 12 sound input/output unit 13 button pressing unit 16 control unit 161 information detection unit 162 room unit operation unit 163 authentication condition acquisition unit 164 unlock control unit 2 mobile terminal 21 display Unit 25 Control unit 251 Unlocking permission acquisition unit 252 Display control unit 253 Sound generation unit 3 Management server 4 Entrance device 5 Living room unit 51 Display unit 52 Sound input/output unit 53 Button

Claims (11)

An intercom system comprising an entrance unit installed outside an entrance door in a building, and an in-room unit installed in a room of the building and having a display section for displaying a captured image of an area outside the entrance door. a housing attached to the room unit;
an imaging unit provided at a position capable of imaging the display unit;
a call information detection unit that detects call information issued by the room unit in response to operation of the entrance unit;
an authentication condition acquisition unit that acquires authentication conditions;
When the captured image of the display unit captured by the imaging unit after the calling information detection unit detects the calling information satisfies the authentication condition, unlock control is performed to unlock the front door. Department and
unlocking device with The unlocking control unit obtains a code included in the captured image captured by the imaging unit and displayed by the display unit, and unlocks the front door when the code satisfies the authentication condition. to control the
2. The unlocking device according to claim 1. The unlocking control unit acquires characteristic information of a person included in the captured image captured by the imaging unit and displayed by the display unit, and unlocks the front door when the characteristic information satisfies the authentication condition. control to unlock,
2. The unlocking device according to claim 1. The authentication condition acquisition unit acquires the authentication condition associated with the place where the room machine is installed,
The unlocking control unit unlocks the entrance door when the captured image of the display unit captured by the imaging unit satisfies the authentication condition associated with the location where the room unit is installed. to control the
4. The unlocking device according to any one of claims 1-3. The call information detection unit detects a ringing sound emitted by a speaker of the room unit in response to the operation of the entrance machine and a display or lamp of the room unit in response to the operation of the entrance machine. detecting at least one of emitted light as the call information;
5. The unlocking device according to any one of claims 1-4. The call information detection unit detects, as the call information, detection of movement of a subject in a range in which the captured image of the display unit captured by the imaging unit is captured.
6. The unlocking device according to any one of claims 1-5. The unlock control unit transmits an unlock signal for unlocking the front door to an unlocking device attached to the front door when the captured image satisfies the authentication condition, thereby unlocking the front door. control to unlock the
7. An unlocking device according to any one of claims 1-6. Equipped with an unlocking device and a mobile terminal,
The unlocking device is
An entrance machine installed outside an entrance door in a building, and a living room installed in a living room of the building and having a display unit for displaying a captured image including a screen displayed by the mobile terminal outside the entrance door. a housing attached to the room unit of an intercom system comprising a device;
an imaging unit provided at a position capable of imaging the display unit;
a call information detection unit that detects call information issued by the room unit in response to operation of the entrance unit;
an authentication condition acquisition unit that acquires authentication conditions;
After the call information detection unit detects the call information, the code included in the captured image captured by the imaging unit and displayed by the display unit is obtained. an unlocking control unit that performs control for unlocking the door;
has
The mobile terminal has a display that displays the code,
unlocking system. Further comprising a server for authenticating the mobile terminal,
9. The unlocking system according to claim 8, wherein said mobile terminal further comprises a display control section for displaying said code on said display of said mobile terminal when authenticated by said server. The display control unit, when authenticated by the server, receives key information associated with the location where the room unit is installed from the server, and generates the code based on the received key information. 10. The unlocking system according to claim 9, wherein the generated code is displayed on the display of the mobile terminal. A housing of an intercom system comprising an entrance machine installed outside an entrance door in a building and a room machine installed in a room of the building and emitting sounds received from the entrance machine, the housing being attached to the room machine. When,
a sound input unit that receives sound emitted by the room machine;
a call information detection unit that detects call information issued by the room unit in response to operation of the entrance unit;
an authentication condition acquisition unit that acquires authentication conditions;
a living room machine operating section for operating the living room machine so as to start transmission and reception of sound between the entrance machine and the living room machine when the calling information detecting section detects the calling information;
If the sound received by the sound input unit after the call information detection unit detects the call information satisfies the authentication condition, the unlocking device attached to the entrance door unlocks the entrance door. an unlocking control unit that transmits an unlocking signal;
unlocking device with

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