JP6761328B2 - Intercom system for apartments - Google Patents

Description

The present invention relates to an intercom system for an apartment house, and in particular, a security function for dealing with an unauthorized operation in which a visitor presses a call button while hiding the camera of the entrance unit for the purpose of confirming the absence of a resident. Regarding the intercom system equipped with.

Conventionally, the intercom system for apartment houses has a function that allows residents to check the images of visitors taken by the camera of the entrance unit on the monitor of the master unit in the room and outsource the response to suspicious persons to a security company. (For example, Patent Document 1).

However, according to this intercom system, when a visitor calls by hiding the camera lens of the collective entrance machine with his or her hand, the resident cannot confirm the appearance or appearance of the visitor. Therefore, Patent Document 2 proposes an intercom system for a detached house that generates a warning message on the slave unit speaker to remove obstacles when the camera of the entrance slave unit is covered with a hand or the like. There is.

Japanese Patent No. 457953 JP-A-2009-239707

According to the intercom system of Patent Document 2, the warning message is automatically generated in response to the unauthorized operation of the visitor, so that the resident does not have to make an unpleasant response. However, if the resident does not respond, the visitor may mistake the house for absence. It's okay to make a mistake, but if a visitor calls for the purpose of confirming his absence, the suspicious person aiming for the burglary may encounter a resident in the room.

Therefore, an object of the present invention is to provide an intercom system for an apartment house that invalidates a resident's call due to an unauthorized operation and does not allow a suspicious person to confirm his / her absence.

In order to solve the above problems, the present invention provides the following means.

(1) An intercom system for an apartment house, which is a collective entrance machine equipped with a camera for photographing a visitor and a call button for the visitor to call a resident, and a living room master unit for answering a call from the collective entrance machine. , The control room master unit installed in the control room, the fraudulent operation detection means that detects the operation of a visitor pressing the call button while blocking the camera lens of the collective entrance machine, and the fraudulent operation detection means. An intercom system provided with a control means for performing fraud countermeasure processing at the time, and characterized in that the fraud countermeasure processing includes a process of transferring a call signal generated by a visitor's fraudulent operation from the collective entrance unit to the management room master unit. ..

(2) The intercom system according to (1), wherein the collective entrance machine is equipped with a monitor, and the anti-fraud process includes a process of displaying a warning message to a visitor on the monitor.

(3) The intercom system according to (1) or (2), which is equipped with an entrance camera for photographing the inside of the entrance of an apartment house, and the fraud countermeasure processing includes a process of recording the image taken by the entrance camera on the management room master unit. ..

(4) The collective entrance machine is equipped with a call end button operated by the visitor to end the call with the room master unit, and the fraud countermeasure processing is performed after the call end button is operated by the visitor. The intercom system according to any one of (1) to (3), which includes a process of recording an image taken by a camera on a management room master unit.

(5) The illicit operation detection means detects the illicit operation of the visitor based on the amount of change in the video data taken by the camera of the collective entrance machine per unit time or the amount of change in the camera parameters (1) to ( The intercom system according to any one of 4).

The intercom system for an apartment house of the present invention detects an unauthorized operation when a visitor presses the call button with the camera shielded, and transfers the call signal from the entrance unit to the management room master unit. Operate. Therefore, there is an effect that the call of the resident by tampering is invalidated and the suspicious person is not allowed to confirm the absence of the living room.

It is a system diagram of the intercom system for an apartment house which shows one Embodiment of this invention. It is a block diagram which shows the structure of the intercom system for an apartment house of FIG. It is a schematic diagram which shows an example of the warning message displayed on the entrance machine monitor. It is a schematic diagram which shows the image of the entrance camera recorded in the control room master unit. It is a schematic diagram which shows the image of the entrance machine camera recorded in the control room master unit.

Hereinafter, an embodiment in which the present invention is embodied in an intercom system for an apartment house will be described with reference to the drawings. As shown in FIG. 1, the intercom system 1 for an apartment house of this embodiment is installed in an entrance machine 2 installed in the entrance E of the apartment house, an entrance camera 3 for photographing the inside of the entrance E, and a management room. The control room master unit 5 that has been used, the living room master unit 6 that responds to the call from the collective entrance unit 2, and the controller 4 that relays the call signal from the collective entrance unit 2 to the living room master unit 6 or the management room master unit 5. It is composed of and.

As shown in FIG. 2, the collective entrance machine 2 includes a monitor 21 that displays various messages to the visitor, a telephone unit 22 including a microphone and a speaker, a camera 23 that captures the visitor, and the visitor is a resident. A call button 25 for calling is provided, a call end button 26 operated by a visitor to end a call with the living room master unit 6, a CPU 24 for controlling the operation of the collective entrance unit 2, and a communication interface 27. There is. The CPU 24 is provided with an illicit operation detection unit 28 that detects an operation in which a visitor presses the call button 25 while shielding the lens of the camera 23 of the collective entrance machine 2 as an illicit operation.

The controller 4 is provided with a CPU 41 and a communication interface 44. The CPU 41 as a control means is provided with a fraud countermeasure processing unit 43 that executes a predetermined fraud countermeasure process when an unauthorized operation is detected in the collective entrance machine 2. Then, the CPU 41 executes a normal process of relaying the call signal generated by the regular operation from the collective entrance unit 2 to the living room master unit 6 or the management room master unit 5, and also executes the call signal generated by the unauthorized operation to the collective entrance unit 2. It is configured to execute the fraud countermeasure process of transferring only to the management room master unit 5.

The management room master unit 5 includes a monitor 51 that displays images taken by the entrance camera 3 or the entrance camera 23, a communication unit 52 including a microphone and a speaker, and a non-volatile memory 54 that records images of the cameras 3 and 23. A CPU 53 that controls the operation of the management room master unit 5 and a communication interface 55 are provided. Then, in order to deal with the unauthorized operation by the visitor, the CPU 53 of the management room master unit 5 records the images taken by the entrance camera 3 and the entrance camera 3 in the non-volatile memory 54 in accordance with the command from the controller CPU 41. It is designed to control for.

Next, in the intercom system 1 for an apartment house having the above configuration, a process for dealing with an unauthorized operation of a visitor for the purpose of confirming absence will be described. The camera 23 of the collective entrance machine 2 starts a shooting operation constantly or intermittently, or when a motion sensor (not shown) installed in the entrance E detects a person.

When the image captured by the camera 23 is input to the entrance machine CPU 24, the illicit operation detection unit 28 detects the illicit operation of the visitor based on the amount of change in the image data per unit time. At this time, the unauthorized operation detection unit 28 uses image recognition technology to take, for example, background subtraction and frame-to-frame subtraction of the image taken by the entrance camera 23, and the amount of change in the entire image, the iris of the camera 23, and the gain. Calculate the amount of change in parameters such as. Then, when the amount of change exceeds a predetermined threshold value, it is determined that the camera 23 is in the shielded state or is no longer in the shielded state. When the camera 23 is in the shielded state, the illicit operation detection unit 28 measures the time by the timer and detects the illicit operation by the visitor when the call button 25 is pressed before the predetermined time elapses. When the illicit operation is detected, the illicit operation detection unit 28 generates a detection signal, and the entrance machine CPU 24 transmits the call signal and the detection signal to the controller 4.

The fraud countermeasure processing unit 4 of the CPU 41 of the controller 4 that has received the call signal and the detection signal performs fraud countermeasure processing for transferring the call signal generated by the operation of the call button 25 from the entrance unit 2 to the management room master unit 5. Execute. Then, in response to the call signal, the CPU 53 of the management room master unit 5 generates a ringing tone for calling the manager from the speaker of the call unit 52, and the entrance camera 23 cannot take a picture on the management room monitor 51. Display that there is.

Further, in order to warn the visitor of the unauthorized operation, the fraud countermeasure processing unit 43 calls the management room master unit because it has detected that the camera is hidden, for example, as shown in FIG. Warning message is displayed on the monitor 21 of the collective entrance machine 2. Further, in order to leave an image of a visitor who is illegally operating the collective entrance machine 2, the fraud countermeasure processing unit 43 takes a picture when the unauthorized operation is detected by the entrance camera 3 as shown in FIG. A process for recording the generated video 31 in the non-volatile memory 54 of the management room master unit 5 is executed.

By the way, when a visitor who sees the warning message presses the end button 26 of the collective entrance machine 2 to forcibly terminate the call and the call, the fraud countermeasure processing unit 43 turns off the entrance unit call unit 22. , The standby screen is displayed on the entrance machine monitor 21, and the collective entrance machine 2 is made to appear as if the call is finished, and the entrance machine camera 23 is continuously operated. Then, based on the amount of change in the video data or the amount of change in the camera parameters at the moment when the visitor tries to leave the camera 23, it is determined that the camera 23 is no longer in the shielded state, and the recording data acquisition destination is determined. The entrance camera 3 is switched to the entrance camera 23, and the state of the visitor when leaving is photographed by the camera 23 and recorded in the non-volatile memory 54 of the management room master unit 5.

Note that FIG. 5A shows an image 29 displayed on the management room monitor 51 when the entrance machine camera 23 is in a shielded state, and the manager detects an abnormality in the collective entrance machine 2 from this image. Can be done. FIG. 5B shows an image 29 displayed and recorded on the management room monitor 51 immediately after the shielding state of the entrance camera 23 is released, and this image is posted on an electronic circulation board or the like to form an apartment house. It can be displayed on each living room master unit 6 in the room.

Therefore, according to the intercom system 1 for an apartment house of this embodiment, when the visitor presses the call button 25 with the entrance camera 23 hidden, the controller 4 does not send the call signal to the room master unit 6. Since it is transferred to the management room master unit 5, it is possible to invalidate the call of the resident by unauthorized operation and prevent the suspicious person from confirming the absence. Moreover, since a warning message is displayed on the entrance monitor 21 when an unauthorized operation is detected, it is possible to prevent a suspicious person from confirming his / her absence and prevent a crime aimed at a burglary.

Further, since the unauthorized operation detection unit 28 of the collective entrance machine CPU 24 detects the unauthorized operation of the visitor based on the video data or the sudden change of the camera parameter, it is slower and cheaper than the person detection and the face detection. In addition to being able to use the CPU, unlike the case of detecting based on the brightness of the image, there is no risk of erroneous detection at night, and even if light enters through the gap between the fingers that hide the camera 23, unauthorized operation is accurately detected. be able to.

The present invention is not limited to the above embodiment, and for example, it is possible to detect an unauthorized operation of a visitor based on the video data constantly captured by the entrance camera 3, or the CPU 53 of the management room master unit 5. Can also function as a fraud detection unit 28 and a fraud countermeasure processing unit 43. In addition, the configuration of each part can be arbitrarily changed and implemented without departing from the spirit of the present invention.

1 Intercom system for multi-family housing 2 Multi-unit entrance camera 3 Entrance camera 4 Controller 5 Management room master unit 6 Living room master unit 21 Entrance unit monitor 22 Entrance unit call unit 23 Entrance unit camera 24 Entrance unit CPU
25 Call button 26 End call button 28 Illegal operation detector 41 Controller CPU
43 Fraud countermeasure processing unit 51 Management room monitor 53 Management room CPU
54 Non-volatile memory

Claims (4)

An intercom system for apartments
A collective entrance unit equipped with a camera that captures a visitor and a call button for the visitor to call a resident, a living room master unit that responds to a call from the collective entrance unit, and a management room master unit installed in the management room. , A fraudulent operation detecting means for detecting an operation in which a visitor presses a call button while blocking the camera of the collective entrance machine as a fraudulent operation, and a control means for executing fraud countermeasure processing when the fraudulent operation is detected. With
The illicit operation detecting means detects the illicit operation of a visitor based on the amount of change per unit time of the video data captured by the camera of the collective entrance machine or the amount of change in the camera parameters.
An intercom system characterized in that the fraud countermeasure processing includes a processing of transferring a call signal generated by the fraudulent operation of a visitor from a collective entrance unit to a management room master unit. The intercom system according to claim 1, wherein the collective entrance machine is provided with a monitor, and the fraud countermeasure process includes a process of displaying a warning message to a visitor on the monitor. An entrance camera for photographing the inside of the entrance of the apartment house is provided, and the fraud countermeasure processing is a process of recording a video image taken by the entrance camera on the management room master unit, and a visitor operates the end button. The intercom system according to claim 1 or 2, further comprising a process of switching the acquisition destination of the recorded data from the entrance camera to the entrance camera . The collective entrance machine includes a call end button operated by a visitor to end a call with the room master unit, and the fraud countermeasure processing is performed after the call end button is operated by the visitor. The intercom system according to any one of claims 1 to 3, which includes a process of recording an image taken by a camera of the machine on the management room master unit.

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