JP7352788B2 - Intercom system, registration method, and program - Google Patents

Description

The present disclosure generally relates to an intercom system, a registration method, and a program, and more specifically relates to an intercom system, a registration method, and a program installed in a facility such as an apartment.

Patent Document 1 describes an intercom system used in an apartment complex. The intercom system described in Patent Document 1 communicates between a collective entrance machine installed at the collective entrance of an apartment complex, a living room master unit installed in each dwelling unit of the collective housing, and a collective entrance machine and each living room master machine. and a control device that can be connected to the controller. The intercom system described in Patent Document 1 compares the visitor shown in the image taken by the camera of the collective entrance machine and the visitor shown in the image stored in the storage unit of the control device, and compares the visitor shown in the image captured by the camera of the collective entrance device, and determines whether the two match. The system is configured so that the master unit in the room will not be called in such a case.

Japanese Patent Application Publication No. 2017-108342

By the way, in the intercom system described in Patent Document 1, it is desired to improve the accuracy of visitor authentication.

The present disclosure has been made in view of the above problems, and aims to provide an intercom system, a registration method, and a program that can improve visitor authentication accuracy.

An intercom system according to an aspect of the present disclosure includes: an intercom handset installed in a common area of a facility; an intercom base unit installed in a private area different from the common area of the facility; An intercom system includes a control device that controls communication with an intercom base unit. The intercom system includes an acquisition section, a recording section, a selection section, and a registration section. The acquisition unit acquires an image of the common area. The recording unit is provided in the intercom base unit and records the image of the common area acquired by the acquisition unit. The selection unit allows the user to select a comparison image including the visitor's face from among the images of the common area recorded by the recording unit. The registration unit registers the comparison image selected by the selection unit or the facial feature amount extracted from the comparison image as comparison data of a face authentication system that performs face authentication of the visitor. The registration unit is provided in the intercom handset or the face authentication system that is connected to the intercom handset without going through the control device.

A registration method according to an aspect of the present disclosure includes: an intercom handset installed in a common area of a facility; an intercom base unit installed in a dedicated area different from the shared area of the facility; This is a method of registering comparison data of a face authentication system executed in a computer system in an intercom system including a control device that controls communication with an intercom base unit . The registration method includes an acquisition step, a recording step, a selection step, and a registration step. The acquisition step is a step of acquiring an image of the common area. The recording step is a step of recording, in the intercom base device, the image of the common area acquired in the acquiring step. The selection step is a step in which the user selects a comparison image including the visitor's face from among the images of the common area recorded in the recording step. In the registration step, the comparison image selected in the selection step or the facial feature amount extracted from the comparison image is registered in a registration unit as comparison data of a face authentication system that performs face authentication of the visitor. This is a step to The registration unit is provided in the intercom handset or the face authentication system that is connected to the intercom handset without going through the control device.

A program according to one aspect of the present disclosure is a program for causing a computer system to execute the registration method.

According to the present disclosure, there is an effect that visitor authentication accuracy can be improved.

FIG. 1 is a block diagram of an intercom system according to Embodiment 1 of the present disclosure. FIG. 2 is a sequence diagram illustrating the operation when recording an image in the above intercom system. FIG. 3 is a sequence diagram illustrating the operation when registering an image for authentication in the above intercom system. FIG. 4 is a sequence diagram illustrating the operation when authentication is successful in the above intercom system. FIG. 5 is a sequence diagram illustrating the operation when authentication is not successful in the above intercom system. FIG. 6 is a block diagram of an intercom base unit of an intercom system according to Embodiment 2 of the present disclosure. FIG. 7 is a sequence diagram illustrating the operation of setting whether or not to permit unlocking of the electric lock in the above intercom system. FIG. 8 is an explanatory diagram illustrating the operation of the intercom system according to Embodiment 3 of the present disclosure.

(Embodiment 1)
(1) Overview Hereinafter, an overview of the intercom system 10 according to the present embodiment will be described with reference to FIG. 1.

The intercom system 10 according to this embodiment is a facility intercom system installed in a facility 100. The facility 100 is, for example, a housing complex such as an apartment. As shown in FIG. 1, the intercom system 10 includes a plurality of (two in the illustrated example) intercom base units 1, intercom slave units 2, a control device 3, and a face authentication system 6. In the intercom system 10, communication is possible between each of the plurality of intercom base units 1 and the intercom slave units 2 via the control device 3. In other words, in the intercom system 10, a call from the intercom handset 2 is a trigger, and the intercom handset 2 and the intercom base unit 1 can talk. Note that the face authentication system 6 may or may not be included in the intercom system 10. In other words, the intercom system 10 only needs to be configured to cooperate with at least the face authentication system 6.

The intercom base unit 1 is provided in a dedicated section 101, as shown in FIG. Here, the exclusive portion 101 is each dwelling unit of an apartment complex. In other words, the exclusive area 101 is a different area from the common area 102 (described later) in the facility 100. That is, the intercom base unit 1 is a housing unit terminal installed in each housing unit of an apartment complex. Intercom base unit 1 is connected to control device 3 via second transmission path 52 . The second transmission line 52 includes a trunk line 521 and a plurality of (two in the illustrated example) branch lines 522. Each of the plurality of branch lines 522 branches off from the main line 521 via the branch 4. The plurality of branch lines 522 have a one-to-one correspondence with the plurality of intercom base units 1, and each of the plurality of intercom base units 1 is connected to the main line 521 via the corresponding branch line 522. Each intercom base unit 1 is configured to communicate (for example, make a phone call, transmit a control signal, etc.) with an intercom slave unit 2 via a control device 3 .

The intercom handset 2 is provided in the common area 102, as shown in FIG. The common area 102 here is a common lobby (common entrance) of an apartment complex. That is, the intercom handset 2 is a lobby intercom installed in a common lobby of an apartment complex. The intercom handset 2 is connected to the control device 3 via a first transmission path 51. The intercom handset 2 is configured to communicate (for example, make phone calls, transmit video signals, etc.) with each intercom base unit 1 via the control device 3 .

The control device 3 is installed in a management room or the like of an apartment complex. The control device 3 is configured to relay communication between each intercom base unit 1 and intercom slave unit 2. Note that both the first transmission line 51 and the second transmission line 52 are twisted pair wires. That is, although the first transmission line 51 and the second transmission line 52 are actually composed of two electric wires, they are represented by one line in the drawing.

The face authentication system 6 includes a determination section 612 and a registration section 63. The registration unit 63 registers, for example, a comparison image selected by the selection unit 17 (described later) of the intercom base device 1 as comparison data for performing face authentication. The determination unit 612 determines whether or not to permit unlocking of the electric lock 51 (described later) according to the authentication result of the authentication unit 611 (described later). The electric lock 51 is provided in the common area 102. The electric lock 51 locks or unlocks the opening/closing member 5 provided to separate the common area 102 and the exclusive area 101. The opening/closing member 5 is an automatic door here. The opening/closing member 5 is configured to automatically open when the electric lock 51 is unlocked. Further, the opening/closing member 5 is configured to automatically close after a certain period of time (for example, one minute) has elapsed.

The intercom system 10 according to this embodiment includes an acquisition section 23, a recording section 14, a selection section 17, and a registration section 63. The acquisition unit 23 acquires an image of the common area 102 of the facility 100. The recording unit 14 records the image of the common area 102 acquired by the acquisition unit 23. The selection unit 17 allows the user to select a comparison image including the visitor's face from among the images of the common area 102 recorded by the recording unit 14. The registration unit 63 registers the comparison image selected by the selection unit 17 or the facial feature amount extracted from the comparison image as comparison data for the face authentication system 6 that performs facial authentication of the visitor. The "user" here includes residents of each housing unit in the apartment complex. Furthermore, the term "visitor" here includes not only outsiders such as delivery companies and cleaning companies, but also residents of each dwelling unit.

In the intercom system 10 according to the present embodiment, a comparison image for authentication can be selected from among the images of the common area 102 recorded by the recording unit 14. Therefore, by selecting a comparison image suitable for face authentication from among the images of the common area 102 recorded by the recording unit 14, it is possible to improve the accuracy of visitor authentication.

(2) Details Hereinafter, details of the intercom system 10 according to the present embodiment will be described with reference to FIG. 1.

(2.1) Intercom Base Unit First, the configuration of the intercom base unit 1 will be explained. As shown in FIG. 1, the intercom base unit 1 includes a base unit side control unit 11, a base unit side communication unit 12, a base unit side display unit 13, a recording unit 14, a base unit side operation unit 15, The main unit side storage unit 16 is provided. Further, the intercom base unit 1 includes a base unit side communication unit (including a speaker and a microphone) for realizing a telephone conversation with the intercom slave unit 2.

The main unit side control unit 11 is composed of a microcomputer having a processor and a memory. In other words, the main unit side control unit 11 is realized by a computer system having a processor and a memory. Then, the computer system functions as the main unit side control unit 11 by the processor executing an appropriate program. The program may be pre-recorded in a memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

The base unit side communication unit 12 is a communication interface for communicating with the intercom slave unit 2 . The parent device side communication unit 12 is connected to the control device 3 via a second transmission path 52, as shown in FIG. The base unit side communication unit 12 is configured to be able to communicate bidirectionally with the intercom slave unit 2 via the control device 3 . The base unit side communication unit 12 transmits communication signals including audio signals, control signals, etc. to the intercom handset 2. Further, the base unit side communication unit 12 receives a communication signal transmitted from the intercom slave unit 2, and obtains an audio signal, a video signal, etc. by demodulating this communication signal. The audio signal is output to the base unit side communication unit via the base unit side control unit 11, and the video signal is output to the base unit side display unit 13 via the base unit side control unit 11.

The parent device side display unit 13 is, for example, a liquid crystal display. The main unit side display unit 13 displays the image of the common area 102 acquired by the acquisition unit 23 of the intercom slave unit 2. Furthermore, the parent device side display section 13 is configured to be able to display the image of the common section 102 stored in the parent device side storage section 16, in other words, the image of the common section 102 recorded by the recording section 14. The user can select a comparison image suitable for face authentication from among the images of the common area 102 displayed on the base unit display unit 13. That is, the parent device side display unit 13 can display a selection screen for selecting a comparison image. In this embodiment, the parent device side display section 13 functions as the selection section 17.

The recording unit 14 has a function of recording the image of the common area 102 acquired by the acquisition unit 23. In other words, the recording unit 14 stores the image of the common area 102 sent from the intercom slave unit 2 in the base unit side storage unit 16. Note that in this embodiment, the acquisition unit 23, which will be described later, is a camera that captures a moving image. Therefore, the images of the common unit 102 to be stored in the base unit side storage unit 16 may be created by creating a plurality of images from the video acquired by the acquisition unit 23 in the intercom slave unit 2, or by creating a plurality of images from the video acquired by the acquisition unit 23 in the intercom base unit 1. You may create multiple images from. Hereinafter, the image of the common area 102 recorded by the recording unit 14 will also be referred to as a "recorded image."

The main unit side operation unit 15 is configured to receive operation input from residents of each dwelling unit. The main unit side operation unit 15 is an input interface having a plurality of push button switches such as a numeric keypad, a "call" button, an "unlock" button, etc., for example. The "call" button is a button for starting (permitting) a call between the intercom base unit 1 and the intercom slave unit 2. The "unlock" button is a button for unlocking the electric lock 51 of the opening/closing member 5. In addition, when the intercom main unit 1 is equipped with a touch panel display, the touch panel display may serve as both the main unit side display section 13 and the main unit side operation section 15.

The base device side storage unit 16 is configured with a readable/writable memory such as a flash memory, for example. Base device side storage unit 16 stores address information (identification information) individually assigned to intercom base device 1 . Furthermore, the main unit side storage unit 16 stores the image of the shared unit 102 sent from the intercom slave unit 2.

(2.2) Intercom Handset Next, the configuration of the intercom handset 2 will be explained. As shown in FIG. 1, the intercom handset 2 includes a handset side control section 21, a handset side communication section 22, an acquisition section 23, a handset side display section 24, a handset side operation section 25, It includes a slave side storage section 26, an output section 27, and a second communication section 28. Further, the intercom handset 2 includes a handset-side communication section (including a speaker and a microphone) for realizing a call with the intercom base unit 1.

The slave side control unit 21 is composed of a microcomputer having a processor and a memory. That is, the handset side control unit 21 is realized by a computer system having a processor and a memory. Then, the computer system functions as the slave side control unit 21 by the processor executing an appropriate program. The program may be pre-recorded in a memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

Handset side communication unit 22 is a communication interface for communicating with intercom base unit 1 . The slave side communication unit 22 is connected to the control device 3 via the first transmission path 51, as shown in FIG. The handset side communication unit 22 is configured to be able to communicate bidirectionally with the intercom base unit 1 via the control device 3 . The handset side communication unit 22 transmits communication signals including audio signals, video signals, etc. to the intercom base unit 1. Further, the handset-side communication unit 22 receives a communication signal transmitted from the intercom base unit 1, and demodulates this communication signal to obtain an audio signal and the like. The audio signal is output to the handset side communication section via the handset side control section 21.

The acquisition unit 23 is, for example, a camera for capturing an image of a subject (visitor, etc.). The imaging area (field of view) of the acquisition unit 23 is set in front of the intercom handset 2 so that at least the face of the visitor can be imaged when the visitor operates the intercom handset 2. In this embodiment, the acquisition unit 23 is a camera that captures a moving image. Furthermore, in this embodiment, the acquisition unit 23 is a camera that captures color images. Note that the acquisition unit 23 may be a camera that captures still images, or may be a camera that captures monochrome images. Further, the acquisition unit 23 is not limited to a camera, and may be configured to acquire images from an external camera.

The handset side display section 24 is, for example, a liquid crystal display. The handset-side display unit 24 displays the image of the common area 102 acquired by the acquisition unit 23.

The handset-side operation unit 25 is configured to receive operation input from a visitor to the apartment complex. The handset-side operation unit 25 is an input interface having a number of pushbutton switches such as a numeric keypad and a "call" button. The "call" button is a button for calling each dwelling unit. For example, the visitor can call the target dwelling unit by inputting the dwelling unit number etc. using a numeric keypad and then pressing a "call" button. In contrast, the resident of the target dwelling unit can make a voice call between the intercom base unit 1 and the intercom slave unit 2 by pressing the "call" button included in the base unit side operation unit 15. . In addition, when the intercom handset 2 is equipped with a touch panel display, the touch panel display may serve as both the handset side display section 24 and the handset side operation section 25.

The child unit side storage unit 26 is configured with a readable/writable memory such as a flash memory, for example. The handset side storage unit 26 stores the image of the common area 102 acquired (imaged) by the acquisition unit 23.

The output unit 27 is configured to output an unlock signal Sig2 for unlocking the opening/closing member 5. The output unit 27 outputs an unlocking signal Sig2 to the opening/closing member 5 according to the authentication result of the face authentication system 6, for example. The opening/closing member 5 is unlocked by the unlocking signal Sig2 and is automatically opened.

The second communication unit 28 is a communication interface for communicating with the face authentication system 6. The second communication unit 28 is configured to be able to communicate bidirectionally with the face authentication system 6. The second communication unit 28 transmits a communication signal including the image of the common area 102 acquired by the acquisition unit 23 to the face authentication system 6. Further, the second communication unit 28 receives the unlock signal Sig1 from the face authentication system 6. This unlocking signal Sig1 is transmitted from the face authentication system 6 according to the determination result of the determination unit 612, which will be described later.

(2.3) Control Device Next, the configuration of the control device 3 will be explained. The control device 3 includes a control section 31, a communication section 32, and a storage section 33, as shown in FIG.

The control unit 31 is composed of a microcomputer having a processor and a memory. That is, the control unit 31 is realized by a computer system having a processor and a memory. The computer system functions as the control unit 31 by the processor executing an appropriate program. The program may be pre-recorded in a memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

The communication unit 32 is connected to the slave side communication unit 22 of the intercom slave unit 2 via the first transmission path 51 . Further, the communication unit 32 is connected to the base unit side communication unit 12 of each intercom base unit 1 via a second transmission path 52. The communication unit 32 receives a communication signal transmitted from the intercom handset 2, and transmits the communication signal to the intercom base unit 1 to which an address corresponding to the residential unit number included in this communication signal is assigned. Further, the communication unit 32 receives a communication signal transmitted from the intercom base unit 1 and transmits this communication signal to the intercom slave unit 2. That is, the communication unit 32 connects the intercom base unit 1 and the intercom slave unit 2, and relays communication (call) between the two.

The storage unit 33 is configured with a readable/writable memory such as a flash memory, for example. The storage unit 33 stores the unit number of each unit (exclusive unit 101) of the apartment complex in association with the address individually assigned to the intercom base unit 1 installed in each unit. Therefore, the control unit 31 converts the housing unit number included in the communication signal from the intercom handset 2 into an address based on the correspondence between the housing unit number and address stored in the storage unit 33, and sends a communication signal containing this address. is transmitted from the communication unit 32 to each intercom base unit 1. Each intercom base unit 1 receives the communication signal if the address included in the communication signal matches the address assigned to itself, and discards the communication signal if it does not match.

(2.4) Face Authentication System Next, the configuration of the face authentication system 6 will be explained. As shown in FIG. 1, the face authentication system 6 includes a control section 61, a communication section 62, a registration section 63, and a storage section 64. Further, the control unit 61 includes an authentication unit 611 and a determination unit 612, as shown in FIG.

The control unit 61 is composed of a microcomputer having a processor and a memory. That is, the control unit 61 is realized by a computer system having a processor and a memory. The computer system functions as the control unit 61 by the processor executing an appropriate program. The program may be pre-recorded in a memory, or may be provided via a telecommunications line such as the Internet, or recorded on a non-transitory recording medium such as a memory card.

The authentication unit 611 is configured to authenticate the visitor based on the image of the common area 102 acquired by the acquisition unit 23 of the intercom handset 2 (hereinafter also referred to as “acquired image”). Specifically, the authentication unit 611 compares the visitor's face image included in the acquired image and the visitor's face image included in the comparison image registered in the registration unit 63, and determines whether the two match. Determine whether or not. Then, if the two match, the authentication unit 611 determines that the person is a legitimately registered person, and if the two do not match, the authentication unit 611 determines that the person is an unregistered person. In other words, the face authentication system 6 performs facial authentication of the visitor by comparing the authentication data based on the image of the common area 102 acquired by the acquisition unit 23 with the comparison data registered in the registration unit 63. . Here, "the case where both match" includes a case where both match completely and a case where the difference between the two is within a predetermined range.

The determination unit 612 is configured to determine whether or not to permit unlocking of the electric lock 51. Specifically, the determination unit 612 determines whether to permit unlocking of the electric lock 51 according to the authentication result of the authentication unit 611 (face authentication system 6). More specifically, based on the authentication result of the authentication unit 611, the determination unit 612 permits the unlocking of the electric lock 51 if the visitor included in the acquired image is a legitimately registered person; If it is a person, unlocking of the electric lock 51 is not permitted. When permitting unlocking of the electric lock 51 based on the determination result of the determination unit 612, the control unit 61 creates an unlocking signal Sig1 and causes the communication unit 62 to transmit the unlocking signal Sig1 to the intercom handset 2.

The communication unit 62 is a communication interface for communicating with the intercom handset 2. The communication unit 62 is configured to be able to communicate bidirectionally with the intercom handset 2. The communication unit 62 transmits the unlock signal Sig1 created by the control unit 61 according to the determination result of the determination unit 612 to the intercom handset 2. Further, the communication unit 62 receives from the intercom handset 2 a communication signal including the image of the shared area 102 acquired by the acquisition unit 23 of the intercom handset 2 . Further, the communication unit 62 receives from the intercom slave device 2 a communication signal including data of the comparison image selected by the selection unit 17 of the intercom base device 1 (comparison data).

The registration unit 63 registers comparison data included in the communication signal received by the communication unit 62. In other words, the registration unit 63 causes the storage unit 64 to store the comparison data. The registration unit 63 registers comparison data for each visitor. The "comparison data" here is data for determining whether the visitor included in the image of the common area 102 acquired by the acquisition unit 23 of the intercom handset 2 is a legally registered person. Yes, and here it is image data that includes the visitor's face.

The storage unit 64 is configured with a readable/writable memory such as a flash memory, for example. In this embodiment, the storage unit 64 stores the comparison images selected by the selection unit 17 of the intercom base unit 1 for each visitor.

(3) Operation Next, the operation of the intercom system 10 according to this embodiment will be explained.

(3.1) Recording Operation First, the operation of the intercom system 10 when recording the image acquired by the acquisition unit 23 will be described with reference to FIG. 2.

When the visitor inputs the dwelling unit number (room number) using the numeric keypad of the handset-side operation section 25 of the intercom handset 2 and presses the "Call" button (steps S101, S102), the handset-side control section 21 , causes the acquisition unit 23 to acquire the image of the shared area 102. Handset side control unit 21 creates a communication signal including the image of common area 102 acquired by acquisition unit 23, and causes this communication signal to be transmitted from handset side communication unit 22 to intercom base unit 1 (step S103).

In the intercom base unit 1, the base unit control unit 11 causes the recording unit 14 to record the image of the shared unit 102 included in the communication signal received by the base unit communication unit 12 (step S104). Also, at this time, the main unit side control unit 11 displays the image of the common area 102 on the main unit side display unit 13. Next, the base unit side control unit 11 outputs a ringing tone (for example, “ping-dong”, etc.) from the speaker of the base unit side communication unit (step S105).

The resident (user) who heard the ring tone confirms the visitor displayed on the display unit 13 on the base unit side, and then presses the “call” button on the operation unit 15 on the base unit side to call the intercom base unit 1. It becomes possible to talk to the intercom handset 2 (step S106). Thereafter, when the user performs a predetermined operation (for example, pressing the "call" button) while answering the call (step S107), the main unit side control unit 11 ends the recording by the recording unit 14 (step S108). , and then ends the conversation with the intercom handset 2 (step S109).

(3.2) Registration operation Next, referring to FIG. 3, the operation of the intercom system 10 when registering a comparison image selected from among the images (recorded images) of the common area 102 recorded by the recording unit 14 will be described. I will explain. The following description will be made on the assumption that a menu screen for selecting various functions is displayed in advance on the main device side display section 13.

When the user selects "Register" on the menu screen displayed on the base unit display unit 13 (step S201), the base unit control unit 11 registers the plurality of sheets stored in the base unit storage unit 16. The recorded images are read out, and these recorded images are displayed on the main device side display section 13. The user selects a comparison image suitable for face authentication, that is, a comparison image that includes the visitor's face, from among the plurality of recorded images displayed on the base unit display unit 13 (step S202). . After that, the user selects "transfer image" in order to transfer the selected comparison image to the face authentication system 6 (step S203).

The base unit side control unit 11 creates a communication signal including the comparison image selected by the user and the address of the intercom base unit 1, and causes the base unit side communication unit 12 to transmit this communication signal to the face authentication system 6 ( Step S204). The above communication signal is sent to the face recognition system 6 via the control device 3 and the intercom handset 2, but the address included in the communication signal is converted from the address to a residential unit number (room number) in the control device 3. be done.

In the face authentication system 6, the control unit 61 causes the registration unit 63 to register the comparison image data (comparison data) included in the communication signal received by the communication unit 62 (step S205). In other words, the registration unit 63 stores the comparison data in the storage unit 64 in association with the housing unit number. When the registration of the comparison data is completed, the control unit 61 creates a communication signal including a registration completion notification and the housing unit number to notify that the registration has been completed, and transmits this communication signal from the communication unit 62 to the intercom base unit 1. (Step S206). The residential unit number included in the communication signal is converted into the address of the intercom base unit 1 in the control device 3.

In the intercom base unit 1, the base unit side control unit 11 determines that the comparison image (comparison data) has been registered in the face authentication system 6 based on the registration completion notification included in the communication signal received by the base unit side communication unit 12. This is confirmed (step S207). Then, the parent device side control unit 11 ends the comparison image registration operation (step S208).

Incidentally, the recording unit 14 is preferably configured to record a first image, a second image, and a third image as recorded images. The first image is an image acquired by the acquisition unit 23 before a call is made from the intercom handset 2. For example, the first image is an image from when a visitor is detected by a human sensor until the visitor presses a "call" button. be. The second image is an image that the acquisition unit 23 acquires during a call from the intercom handset 2, and is an image from when the visitor presses the "Call" button until the resident presses the "Call" button. The third image is an image acquired by the acquisition unit 23 during a call between the intercom base unit 1 and the intercom slave unit 2, and is an image from the start of the call between the intercom base unit 1 and the intercom slave unit 2 until the end of the call. . In this case, the resident may select an image for comparison from among the first image, second image, and third image, or may select an image for comparison from among the first image, second image, and third image. You may also select an image for

(3.3) Operation when face authentication is successful Next, the operation of the intercom system 10 when the face authentication is successful in the face authentication system 6 will be explained with reference to FIG.

When the visitor inputs the dwelling unit number (room number) using the numeric keypad of the handset-side operation section 25 of the intercom handset 2 and presses the "Call" button (steps S301, S302), the handset-side control section 21 , causes the acquisition unit 23 to acquire the image of the shared area 102. The handset-side control unit 21 creates a communication signal including the image (acquired image) of the common area 102 acquired by the acquisition unit 23, and causes the second communication unit 28 to transmit this communication signal to the face authentication system 6 (step S303).

In the face authentication system 6, the authentication unit 611 of the control unit 61 performs facial authentication of the visitor based on the acquired image included in the communication signal received by the communication unit 62 (steps S304, 305). Specifically, the authentication unit 611 compares the face image included in the acquired image and the face image stored in the storage unit 64, and determines whether the two match. The determination unit 612 determines whether or not to permit unlocking of the electric lock 51 according to the authentication result of the authentication unit 611. In the example of FIG. 4, the authentication unit 611 determines that the two match, and the determination unit 612 permits unlocking of the electric lock 51 based on the authentication result of the authentication unit 611. The control unit 61 creates an unlocking signal Sig1 based on the determination result of the determining unit 612, and causes the communication unit 62 to transmit the unlocking signal Sig1 to the intercom handset 2 (step S306).

In the intercom handset 2, the handset-side control unit 21 sends an unlocking notification to permit unlocking of the electric lock 51 and the acquired image (face recognition system Create a communication signal containing the same image used in step 6). Then, the handset-side control unit 21 causes the created communication signal to be transmitted from the handset-side communication unit 22 to the intercom base unit 1 (steps S307, 308). Further, the handset-side control unit 21 creates an unlocking signal Sig2 and transmits this unlocking signal Sig2 from the output unit 27 to the electric lock 51 of the opening/closing member 5 (step S309).

In the intercom base unit 1, the base unit side control unit 11 notifies the visitor when the base unit side communication unit 12 receives the communication signal from the intercom slave unit 2 (step S310). Specifically, the main unit side control unit 11 causes the main unit side display unit 13 to display the obtained image included in the communication signal, and causes the recording unit 14 to record the acquired image. Furthermore, the base unit side control unit 11 causes the speaker of the base unit side communication unit to output a ring tone. Thereafter, the base unit side control unit 11 creates a communication signal including a reception completion notification that notifies that the visitor's call has been accepted, and causes the base unit side communication unit 12 to transmit this communication signal to the intercom slave unit 2. (Step S311). The handset-side control unit 21 of the intercom handset 2 causes the base-side control unit 11 of the intercom base unit 1 to accept the visitor's call based on the reception completion notification included in the communication signal received by the handset-side communication unit 22. Check that the

In the opening/closing member 5, the electric lock 51 is unlocked by the unlocking signal Sig2 from the intercom handset 2 (step S312). When the electric lock 51 is unlocked, the opening/closing member 5 is automatically opened, and after a certain period of time (for example, one minute) has elapsed, the opening/closing member 5 is automatically closed.

(3.4) Operation when face authentication fails Next, the operation of the intercom system 10 when face authentication fails in the face authentication system 6 will be described with reference to FIG. Note that steps S401 to S405 are the same as steps S301 to S305, so the description thereof will be omitted here.

In the example of FIG. 5, the authentication unit 611 determines that the two do not match, and the determination unit 612 does not permit unlocking of the electric lock 51. The control unit 61 creates a communication signal including the authentication result of the authentication unit 611, and causes the communication unit 62 to transmit this communication signal to the intercom handset 2 (step S406).

In the intercom handset 2, the handset-side control unit 21 sends the unlock signal Sig2 because the communication signal received by the second communication unit 28 includes an authentication result notification notifying that authentication has failed. Not created. Further, the handset side control unit 21 creates a communication signal including the acquired image, and causes the handset side communication unit 22 to transmit this communication signal to the intercom base unit 1 (step S407).

In the intercom base unit 1, the base unit controller 11 causes the base unit display unit 13 to display an acquired image included in the communication signal received by the base unit communication unit 12, and causes the recording unit 14 to record the acquired image. Furthermore, the base unit side control unit 11 causes the speaker of the base unit side communication unit to output a ring tone.

After hearing the ringtone, the resident (user) sees the visitor displayed on the display unit 13 on the base unit side, and then presses the “call” button on the operation unit 15 on the base unit side in order to talk to the visitor. . As a result, a conversation between the intercom base unit 1 and the intercom slave unit 2 is started (step S408).

During the call response (step S409), when the resident presses the "unlock" button on the base unit side operation unit 15 (step S410), the base unit side control unit 11 creates a communication signal including an unlock notification, The communication unit 12 on the base unit side transmits the information to the intercom slave unit 2 (step S411). Then, when a certain period of time (for example, 5 seconds) has elapsed since the "unlock" button was pressed, the base unit side control unit 11 ends the call with the intercom slave unit 2 (step S413).

In the intercom handset 2, the handset side control unit 21 creates an unlocking signal Sig2 based on the unlocking notification included in the communication signal received by the handset side communication unit 22, and sends this unlocking signal Sig2 to the output unit. 27 to the opening/closing member 5 (step S412). Then, in the opening/closing member 5, the electric lock 51 is unlocked by the unlocking signal Sig2 from the intercom handset 2 (step S414).

(4) Effects The intercom system 10 according to the present embodiment includes an acquisition section 23, a recording section 14, a selection section 17, and a registration section 63. The acquisition unit 23 acquires an image of the common area 102 of the facility 100. The recording unit 14 records the image of the common area 102 acquired by the acquisition unit 23. The selection unit 17 allows the user to select a comparison image including the visitor's face from among the images of the common area 102 recorded by the recording unit 14. The registration unit 63 registers the comparison image selected by the selection unit 17 or the facial feature amount extracted from the comparison image as comparison data for the face authentication system 6 that performs facial authentication of the visitor. As described above, it is possible to select a comparison image for face authentication from among the images (recorded images) of the common area 102 recorded by the recording unit 14, and by selecting a comparison image suitable for face authentication. The accuracy of visitor authentication can be improved.

Further, the face authentication system 6 performs facial authentication of the visitor by comparing the authentication data based on the image of the common area 102 acquired by the acquisition unit 23 and the comparison data registered by the registration unit 63. Then, the determination unit 612 of the face authentication system 6 determines whether or not to permit unlocking of the electric lock 51 provided in the common area 102 according to the authentication result of the face authentication system 6. In this way, the electric lock 51 can be unlocked according to the authentication result of the face authentication system 6, which has the advantage of improving convenience.

Furthermore, the intercom system 10 according to the present embodiment uses the acquisition unit 23 (camera) of the intercom handset 2 and does not require a camera for face authentication, reducing the cost of introducing the face authentication system. can do. Further, the intercom system 10 according to the present embodiment further includes a face authentication system 6. Therefore, it also has the advantage of not requiring a separate system for facial recognition.

(5) Modifications Embodiment 1 is just one of various embodiments of the present disclosure. Embodiment 1 can be modified in various ways depending on the design, etc., as long as the objective of the present disclosure can be achieved. Further, functions similar to those of the intercom system 10 may be realized by a registration method, a computer program, a non-temporary recording medium on which a computer program is recorded, or the like.

A registration method according to one embodiment includes an acquisition step, a recording step, a selection step, and a registration step. The acquisition step is a step of acquiring an image of the common area 102 of the facility 100. The recording step is a step of recording the image of the common area 102 acquired in the acquisition step. The selection step is a step in which the user selects a comparison image including the visitor's face from among the images of the common area 102 recorded in the recording step. The registration step is a step of registering the comparison image selected in the selection step or the facial feature amount extracted from the comparison image as comparison data of the face authentication system 6 that performs face authentication of the visitor.

A program according to one embodiment is a program for causing a computer system to execute the above-described registration method.

Modifications of the first embodiment will be listed below. The modified examples described below can be applied in combination as appropriate.

The execution entity of the face authentication system 6 and the intercom system 10 in the present disclosure includes a computer system. A computer system has a processor and memory as hardware. When a processor executes a program recorded in the memory of the computer system, the functions of the face authentication system 6 and the intercom system 10 in the present disclosure as an execution entity are realized. The program may be pre-recorded in the memory of the computer system, or may be provided over a telecommunications line. Further, the program may be provided by being recorded on a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by a computer system. A processor of a computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The plurality of electronic circuits may be integrated into one chip, or may be provided in a distributed manner over a plurality of chips. A plurality of chips may be integrated into one device, or may be distributed and provided in a plurality of devices.

Furthermore, the functions of the main unit side control unit 11, the slave unit side control unit 21, and the control units 31 and 61 may be provided in one device, or may be provided in a distributed manner in a plurality of devices. Good too. Furthermore, at least a portion of the functions of each of the master device side control section 11, slave device side control section 21, and control sections 31 and 61 may be realized by, for example, a cloud (cloud computing).

In the first embodiment, the acquisition section 23 is provided in the intercom handset 2, but the acquisition section may be, for example, another camera provided in the common area 102, or a camera provided at the entrance of each dwelling unit. It may also be a camera built into a door intercom handset.

In the first embodiment, the selection unit 17 is provided in the intercom base unit 1, but the selection unit may be provided in the intercom slave unit 2 or the face authentication system 6, for example. However, it may also be provided in a smartphone or the like owned by the resident.

In the first embodiment, the registration unit 63 is provided in the face authentication system 6, but the registration unit may be provided in the intercom handset 2 or the intercom base unit 1, for example. However, it may also be realized by the cloud.

In the first embodiment, the recording unit 14 is provided in the intercom base unit 1, but the recording unit may be provided in the intercom slave unit 2 or in the face authentication system 6, for example. .

The acquisition unit 23 may be configured to acquire an image of the common area 102 when a visitor is detected by a human sensor provided in the common area 102. In this case, the electric lock 51 can be unlocked only by facial recognition, and for example, the electric lock 51 can be unlocked even in a situation where both hands are occupied by luggage or the like.

The comparison data is not limited to the data of the comparison image, but may be data of facial features extracted from the comparison image.

In the first embodiment, unlocking of the electric lock 51 is permitted or prohibited depending on whether it is registered in the face authentication system 6, but the following aspect is also possible.

The operating procedure on the intercom handset 2 may be different depending on whether or not it is registered in the face authentication system 6. In particular, if the user is registered in the face authentication system 6, some steps may be omitted.

When the target person is registered in the face authentication system 6, the processing may be different depending on the attributes of the target person (delivery company, resident, etc.). For example, the ring tone may be different for the delivery company and the resident, or the ring tone may be stopped for either the delivery company or the resident.

Furthermore, when the subject is registered in the face authentication system 6, the menu screen displayed on the base unit display unit 13 may be changed depending on the attributes of the subject. For example, if the target person is a child, it is preferable that the characters displayed on the parent device side display section 13 be displayed only in hiragana.

The facility 100 is not limited to an apartment complex such as a condominium, but may also be a housing for the elderly with services, or a non-residential facility such as a commercial facility (for example, a shopping center) or an office building.

(Embodiment 2)
The intercom system 10 according to the present embodiment differs from the intercom system 10 according to the first embodiment in that the intercom base unit 1 includes a setting section 18. Note that the other configurations are the same as those of the intercom system 10 according to the first embodiment, and the same components are denoted by the same reference numerals and detailed explanations are omitted.

The intercom system 10 according to the present embodiment includes a plurality of intercom base units 1, intercom slave units 2, a control device 3, and a face authentication system 6 (see FIG. 1). In addition, as shown in FIG. 6, the intercom base unit 1 includes a base unit side control unit 11, a base unit side communication unit 12, a base unit side display unit 13 (selection unit 17), a recording unit 14, a base unit side communication unit 12, a base unit side display unit 13 (selection unit 17), a base unit side It includes a machine side operation section 15, a main machine side storage section 16, and a setting section 18.

The setting unit 18 is configured to set whether or not to permit unlocking of the electric lock 50 for the comparison image selected by the selection unit 17. When there are a plurality of comparison images, the setting unit 18 can set whether or not to permit unlocking of the electric lock 50 for each of the plurality of comparison images.

Next, the operation of the intercom system 10 according to this embodiment will be described with reference to FIG. 7.

When the user selects “Register” on the menu screen displayed on the base unit display unit 13 (step S501), the base unit control unit 11 registers the plurality of sheets stored in the base unit storage unit 16. The recorded images are read out, and these recorded images are displayed on the main device side display section 13. The user selects a comparison image suitable for face authentication, that is, a comparison image that includes the visitor's face, from among the plurality of recorded images displayed on the main unit display unit 13 (step S502). . The user also selects (sets) whether or not to permit unlocking of the electric lock 50 for the selected recorded image (comparison image) (step S503). Then, the user selects transfer of the comparison image and setting information in order to transfer the selected comparison image and the setting information of the comparison image to the face authentication system 6 (step S504).

The base unit side control unit 11 creates a communication signal including the selected comparison image, setting information of the comparison image, and the address of the intercom base unit 1, and sends this communication signal from the base unit side communication unit 12 to the intercom base unit 1. The information is transmitted to the authentication system 6 (step S505). The communication signal is transmitted to the face authentication system 6 via the control device 3 and the intercom handset 2, and the address included in the communication signal is converted into a residential unit number in the control device 3.

In the face authentication system 6, the control unit 61 causes the registration unit 63 to register the comparison image included in the communication signal received by the communication unit 62 and the setting information of the comparison image (steps S506 and 507). At this time, the registration unit 63 registers the comparison image and setting information in association with the housing unit number. When the registration of the comparison image and setting information is completed, the control unit 61 creates a communication signal including a registration completion notification and the housing unit number, and causes the communication unit 62 to transmit this communication signal to the intercom base unit 1 (step S508). . The residential unit number included in the communication signal is converted into the address of the intercom base unit 1 in the control device 3.

In the intercom base unit 1, the base unit side control unit 11 indicates that the comparison image and setting information have been registered in the face authentication system 6 by the registration completion notification included in the communication signal received by the base unit side communication unit 12. Confirm (step S509). Then, the parent device side control unit 11 ends the registration operation of the comparison image and setting information (step S510).

Note that the operation of the intercom system 10 when unlocking of the electric lock 50 is permitted is the same as "(3.3) Operation when face authentication is successful" in Embodiment 1, and the explanation is omitted here. do.

Furthermore, the operation of the intercom system 10 when unlocking the electric lock 50 is prohibited (not permitted) is the same as "(3.4) Operation when face authentication fails" in the first embodiment. , the explanation is omitted here. However, even in this case, the resident can unlock the electric lock 50 by pressing the "unlock" button while talking with a visitor.

By the way, if settings are made such that a specific person is not allowed to unlock the electric lock 50 in multiple residential units (exclusive section 101), in other words, a specific person is on the blacklist in multiple residential units. Assume a case. In this case, there is a high possibility that a specific person will be blacklisted in the remaining units, so if a person is blacklisted in more than the specified number of units, it should be managed as a blacklist for the entire apartment complex. is preferred.

Further, it is preferable that the intercom base unit 1 not call the resident even if the person on the blacklist makes a call.

The intercom system 10 according to the present embodiment further includes a setting section 18 that sets whether or not to permit unlocking of the electric lock 50 for the comparison image selected by the selection section 17. Therefore, when a person included in the comparison image set to permit unlocking of the electric lock 50 visits, the electric lock 50 can be unlocked without any operation by the user, which increases convenience. can be improved. Furthermore, if a person included in the comparison image that is set not to allow unlocking of the electric lock 50 visits, the electric lock 50 will not be unlocked, thereby improving crime prevention.

Note that the configuration described in Embodiment 2 can be applied in appropriate combination with the configuration described in Embodiment 1 (including modified examples).

(Embodiment 3)
The intercom system 10 according to the present embodiment is different from the intercom systems 10 according to the first and second embodiments in that the user is allowed to select an image group consisting of a plurality of recorded images as comparison images. Note that the configuration of the intercom system 10 is the same as that in Embodiment 1, and detailed explanation will be omitted here. The operation (registration operation) of the intercom system 10 according to this embodiment will be described below with reference to FIG. 8.

When the user selects "Register" on the menu screen displayed on the base unit side display unit 13 (step S601), the base unit side control unit 11 registers the plurality of images stored in the base unit side storage unit 16. The group of images is read out, and these image groups are displayed on the display unit 13 on the base unit side. The "image group" here includes a plurality of images acquired within a certain period of time. The user selects any one image group from among the plurality of image groups displayed on the main device side display section 13 (step S602). Then, the user selects transfer of the image group in order to transfer the selected image group to the face authentication system 6 (step S603).

The base unit side control unit 11 creates a communication signal including the image group selected by the user and the address of the intercom base unit 1, and causes the base unit side communication unit 12 to transmit this communication signal to the face authentication system 6 (step S604). The address included in the communication signal is converted by the control device 3 into a residential unit number.

In the face authentication system 6, the control unit 61 selects a comparison image suitable for authentication, that is, a comparison image that includes the visitor's face, from among the image tools included in the communication signal received by the communication unit 62. (Step S605). Then, the control unit 61 causes the registration unit 63 to register the data of the selected comparison image (comparison data) (step S606). At this time, the registration unit 63 registers the comparison image in association with the housing unit number. When the registration of the comparison image is completed, the control unit 61 creates a communication signal including a registration completion notification and the housing unit number, and causes the communication unit 62 to transmit this communication signal to the intercom base unit 1 (step S607). The residential unit number included in the communication signal is converted into the address of the intercom base unit 1 in the control device 3.

In the intercom base unit 1, the base unit side control unit 11 confirms that the comparison image has been registered in the face authentication system 6 based on the registration completion notification included in the communication signal received by the base unit side communication unit 12 ( Step S608). Then, the parent device side control unit 11 ends the comparison image registration operation (step S609).

In the intercom system 10 according to the present embodiment, the selection unit 17 allows the user to select an image group consisting of a plurality of images of the common area 102 recorded by the recording unit 14 as a comparison image. Therefore, compared to the case where one image is selected, it is not necessary to select an image while paying attention to the appearance, etc., and the burden of image selection can be reduced.

In this embodiment, as described above, the control unit 61 of the face authentication system 6 selects the comparison image from the group of images selected by the user. On the other hand, even if the user selects one of the image groups from among the plurality of image groups displayed on the base unit display section 13 and further selects a comparison image from the selected image group, good.

Note that the configuration described in Embodiment 3 (including modifications) can be applied in appropriate combination with the configurations described in Embodiments 1 and 2 (including modifications of Embodiment 1).

(summary)
As described above, the intercom system (10) according to the first aspect includes an acquisition section (23), a recording section (14), a selection section (17), and a registration section (63). The acquisition unit (23) acquires an image of the common area (102) of the facility (100). The recording unit (14) records the image of the common area (102) acquired by the acquisition unit (23). The selection unit (17) allows the user to select a comparison image including the visitor's face from among the images of the common area (102) recorded by the recording unit (14). The registration unit (63) registers the comparison image selected by the selection unit (17) or the facial feature amount extracted from the comparison image as comparison data for a face recognition system (6) that performs facial recognition of a visitor. do.

According to this aspect, the comparison image can be selected from among the images (recorded images) of the common area (102) recorded by the recording unit (14), and the comparison image suitable for face authentication can be selected. This can improve the accuracy of visitor authentication.

The intercom system (10) according to the second aspect is configured to cooperate with the face authentication system (6) in the first aspect.

According to this aspect, face authentication can be performed based on the comparison image selected by the selection unit (17).

The intercom system (10) according to the third aspect is the same as the first or second aspect, and includes an intercom slave (2) and an intercom base (1). The intercom handset (2) is provided in the common area (102). An intercom base unit (1) is provided in a private area (101) of a facility (100) that is different from a common area (102). In the intercom system (10), a call from the intercom handset (2) is used as a trigger to enable a conversation between the intercom handset (2) and the intercom base (1). The selection unit (17) allows the user to select a comparison image from among the first image, second image, and third image. The first image is an image of the common area (102) acquired by the acquisition unit (23) before the call from the intercom handset (2). The second image is an image of the common area (102) acquired by the acquisition unit (23) during a call from the intercom handset (2). The third image is an image of the common area (102) acquired by the acquisition unit (23) during a call between the intercom handset (2) and the intercom base unit (1).

According to this aspect, the user can select a comparison image suitable for face authentication from among the first image, second image, and third image.

In the intercom system (10) according to the fourth aspect, in the third aspect, the selection unit (17) selects the comparison image from any one of the first image, the second image, and the third image for the user. let them choose.

According to this aspect, a comparison image suitable for face authentication can be selected from the first image, the second image, or the third image.

In the intercom system (10) according to the fifth aspect, in the first or second aspect, the selection unit (17) selects images of the plurality of common areas (102) recorded by the recording unit (14) as images for comparison. The user is asked to select a group of images.

According to this aspect, since an image group consisting of a plurality of images is selected, there is no need to worry about the appearance of images when selecting images, compared to the case of selecting one image, and the burden of image selection is reduced. It can be reduced.

In the intercom system (10) according to the sixth aspect, in any one of the first to fifth aspects, the face recognition system (6) performs facial recognition of the visitor by comparing the authentication data and the comparison data. I do. The authentication data is data based on the image of the common area (102) acquired by the acquisition unit (23). The comparison data is data registered in the registration unit (63). The intercom system (10) includes a determination unit (61) that determines whether or not to permit unlocking of the electric lock (51) provided in the common area (102) according to the authentication result of the face recognition system (6). It further includes:

According to this aspect, the electric lock (51) can be unlocked according to the authentication result of the face authentication system (61), and convenience can be improved.

In the sixth aspect, the intercom system (10) according to the seventh aspect sets whether or not to permit unlocking of the electric lock (51) for the comparison image selected by the selection section (17). The apparatus further includes a setting section (18) for setting.

According to this aspect, when a visitor included in the comparison image set to permit unlocking of the electric lock (51) visits, the electric lock (51) is opened without any operation by the user. It can be unlocked, improving convenience. Furthermore, if a visitor included in the comparison image that is set not to allow unlocking of the electric lock (51) visits, the electric lock (51) will not be unlocked, thereby improving crime prevention. I can do it.

The intercom system (10) according to the eighth aspect, in any one of the first to seventh aspects, further includes a face authentication system (6).

According to this aspect, the face authentication system (6) is incorporated into the intercom system (10), and there is an advantage that a new face authentication system is not required.

The registration method according to the ninth aspect includes an acquisition step, a recording step, a selection step, and a registration step. The acquisition step is a step of acquiring an image of the common area (102) of the facility (100). The recording step is a step of recording the image of the common area (102) acquired in the acquisition step. The selection step is a step in which the user selects a comparison image including the visitor's face from among the images of the common area (102) recorded in the recording step. The registration step is a step of registering the comparison image selected in the selection step or the facial feature amount extracted from the comparison image as comparison data of the face authentication system (6) that performs facial authentication of the visitor.

According to this aspect, a comparison image can be selected from among the images of the common area (102) recorded in the recording step, and visitor authentication accuracy can be improved by selecting a comparison image suitable for face authentication. can be improved.

The program according to the tenth aspect is a program for causing a computer system to execute the registration method according to the ninth aspect.

According to this aspect, a comparison image can be selected from among the images of the common area (102) recorded in the recording step, and visitor authentication accuracy can be improved by selecting a comparison image suitable for face authentication. can be improved.

The configurations according to the second to eighth aspects are not essential configurations of the intercom system (10) and can be omitted as appropriate.

1 Intercom base unit 14 Recording unit 17 Selection unit 18 Setting unit 2 Intercom slave unit 23 Acquisition unit 6 Face authentication system 61 Determination unit 63 Registration unit 10 Intercom system 51 Electric lock 100 Facility 101 Exclusive area 102 Common area

Claims (10)

Controls communication between an intercom handset installed in a common area of a facility, an intercom base installed in a private area different from the common area of the facility, and the intercom handset and the intercom base. An intercom system comprising a control device,
an acquisition unit that acquires an image of the common area;
a recording unit that is provided in the intercom base unit and records an image of the common area acquired by the acquisition unit;
a selection unit that allows a user to select a comparison image that includes a visitor's face from among the images of the common area recorded by the recording unit;
a registration unit that registers the comparison image selected by the selection unit or the facial feature amount extracted from the comparison image as comparison data of a face authentication system that performs face authentication of the visitor ;
The registration unit is provided in the intercom handset or the face authentication system that is connected to the intercom handset without going through the control device.
intercom system. configured to cooperate with the face recognition system,
The intercom system according to claim 1. The intercom handset;
The intercom base unit;
The intercom slave unit and the intercom base unit can communicate with each other using a call from the intercom slave unit as a trigger;
The selection unit includes a first image that is an image of the common area acquired by the acquisition unit before the call from the intercom slave, and a first image of the common area acquired by the acquisition unit during the call from the intercom slave. the user selects the comparison image from a second image that is an image and a third image that is an image of the common area acquired by the acquisition unit during a call between the intercom slave unit and the intercom base unit; let,
The intercom system according to claim 1 or 2. The selection unit allows the user to select the comparison image from any one of the first image, the second image, and the third image.
The intercom system according to claim 3. The selection unit allows the user to select an image group consisting of a plurality of images of the common area recorded by the recording unit as the comparison image.
The intercom system according to claim 1 or 2. The face authentication system performs face authentication of the visitor by comparing authentication data based on the image of the common area acquired by the acquisition unit and the comparison data registered in the registration unit,
further comprising a determination unit that determines whether or not to permit unlocking of the electric lock provided in the common area according to the authentication result of the facial recognition system;
The intercom system according to any one of claims 1 to 5. further comprising a setting section for setting whether or not to permit unlocking of the electric lock for the comparison image selected by the selection section;
The intercom system according to claim 6. further comprising the face recognition system,
The intercom system according to any one of claims 1 to 7. Controls communication between an intercom handset installed in a common area of a facility, an intercom base installed in a private area different from the common area of the facility, and the intercom handset and the intercom base. A method for registering comparison data of a face authentication system executed in a computer system in an intercom system comprising a control device ,
an acquisition step of acquiring an image of the common area;
a recording step of recording, in the intercom base unit, the image of the common area acquired in the acquisition step;
a selection step of causing a user to select a comparison image including a visitor's face from among the images of the common area recorded in the recording step;
a registration step of registering the comparison image selected in the selection step or the facial feature amount extracted from the comparison image in a registration unit as comparison data of a face authentication system that performs face authentication of the visitor; Equipped with
The registration unit is provided in the intercom handset or the face authentication system that is connected to the intercom handset without going through the control device.
How to register. to the computer system,
A program for executing the registration method according to claim 9.

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