Intercom system

Abstract

To provide an intercom system which can issue an alarm from an entrance handset even when a person is absent, and can also record an image that can confirm the person who has operated a delivery box.SOLUTION: An intercom system includes an entrance handset 1 and a room main unit 2, and the entrance handset 1 includes a camera 12 for taking an image of a visitor, the room main unit 2 includes a monitor 22 that displays the image captured by the camera 12, and a storage unit 26 that records the image. The delivery box 3 includes a sensor device 3a that outputs a door opening detection signal when the door is opened, and the entrance handset 1 includes a receiving unit 18 that receives the door opening detection signal. When the receiving unit 18 receives the door opening detection signal, a predetermined notification sound is output from the entrance handset 1, the camera 12 is activated, and the captured image is recorded in the storage unit 26. When the door opening detection signal is received, a zoomed image of the set area is recorded.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an intercom system, and more particularly to an intercom system that operates in conjunction with a delivery box. [Background technology]

[0002] Delivery boxes installed in detached houses are more likely to be opened by outsiders than those installed in apartment buildings, so some intercom systems are linked to intercom systems so that when the delivery box is opened, the camera on the entrance sub-unit turns on to take an image, and then records it so that information about the person who opened the box can be confirmed on the main unit in the room. For example, in Patent Document 1, when a delivery box is unlocked, an intercom system is used to notify the resident with a notification sound and an image captured by a camera attached to the front door. Furthermore, the system allows the resident to hear the notification and send out an alarm sound from the front door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-149694 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned Patent Document 1, if a resident becomes aware that a suspicious person is operating a delivery box, an alarm sound can be output from the entrance unit using an intercom system, making the resident aware that they are being monitored, which is an effective deterrent. However, because the alarm sound sent from the door unit is controlled by the resident, it cannot be output when the resident is away, and even if it was recorded, it was difficult to determine who the suspicious person was, so it was ineffective as a deterrent. Also, because the camera was set up to capture images of visitors, it was not possible to identify the operator of the delivery box.

[0005] In view of the above problems, the present invention provides a method for issuing an alarm from a door slave unit even when the user is not at home. but To provide an intercom system that can record an image that enables identification of the person who has operated the delivery box. [Means for solving the problem]

[0006] In order to solve the above problem, the invention of claim 1 is an intercom system having a door slave unit for calling a resident and a room master unit for responding to the call, the door slave unit having a camera for capturing images of visitors, and the room master unit having a monitor for displaying images captured by the camera and a memory unit for recording the images, The delivery box is provided with a sensor device that outputs an open door detection signal to the outside when the door is opened, a receiving unit for receiving the door-open detection signal in either the entrance slave unit or the room master unit; and a control unit that, when the receiving unit receives the door-open detection signal, causes the entrance slave unit to emit a predetermined notification sound and activates the camera to record the captured image in the storage unit; The camera is capable of capturing images at a wide angle of 160 to 180 degrees, The storage unit stores a specific area into which the camera zooms so that the operator of the delivery box can enter; The control unit receives the door open detection signal and causes the camera to detect the specific Eli The camera is characterized by zooming in on the subject and recording the image. With this configuration, when the delivery locker is opened, a notification sound is emitted from the entrance slave unit, making the person who opened it feel like their actions are being monitored, which is effective in deterring suspicious people who try to take out their packages.In addition, because the situation is recorded, it is possible to check later who opened it, which is useful in the event of theft, etc.

[0007] In addition,Since the area around the delivery locker can be zoomed in and recorded, an enlarged image of the operator of the delivery locker can be recorded, making it easier to identify the person who opened the delivery locker.

[0008] Claim 2 The invention of An intercom system having a door slave unit for calling a resident and a room master unit for responding to the call, the door slave unit having a camera for capturing images of visitors, the room master unit having a monitor for displaying images captured by the camera and a memory unit for recording images, The delivery box is provided with a sensor device that outputs an open door detection signal to the outside when the door is opened, a receiving unit for receiving the door-open detection signal in either the entrance slave unit or the room master unit; and a control unit that, when the receiving unit receives the door-open detection signal, causes the entrance slave unit to emit a predetermined notification sound and activates the camera to record the captured image in the storage unit; The camera is capable of capturing images at a wide angle of 160 to 180 degrees, The control unit receives the door open detection signal, causes the camera to capture an image at the maximum angle of view, and records the image. It is characterized by: According to this configuration, When the delivery box is opened, a notification sound is emitted from the entrance unit, making the person who opened it feel like their actions are being monitored, which is effective in deterring suspicious people who try to take their packages.In addition, the situation is recorded, so it is possible to check later who opened it, which is useful in the event of theft, etc. In addition, since the wide-angle camera records images at its widest angle of view, the probability that the operator of the delivery box will be captured on camera increases, which is useful for detecting suspicious individuals, etc.

[0009] Claim 3 The invention of claim 1 or 2 In the configuration described above, the control unit receives a door-open detection signal and causes the room master unit to emit a sound different from the sound notifying of a call. With this configuration, the resident can recognize that the delivery box is being opened by the sound emitted from the main unit in the room, making it easier for them to take action. [Effects of the Invention]

[0010] According to the present invention, when the delivery locker is opened, a notification sound is emitted from the entrance slave unit, which makes the person who opened the locker feel that their actions are being monitored, and is effective in deterring suspicious people who try to take out their packages.In addition, the situation is recorded, so it is possible to check later who opened the locker, which is useful in the event of theft, etc. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a configuration diagram showing an example of an intercom system according to the present invention. [Figure 2] FIG. 2 is a functional block diagram of each device in the intercom system of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012]

[0016] The present invention will be described in detail below with reference to the accompanying drawings, in which:

[0017] Fig. 1 is a block diagram showing an example of an intercom system according to the present invention; the intercom system 10 comprises a front door slave unit 1, a room master unit 2, and a delivery box 3. The entrance slave unit 1 and the room master unit 2 are connected by a transmission line L1, and the delivery box 3 is connected to the entrance slave unit 1 by a signal line L2.

[0013] Fig. 2 is a block diagram of the intercom system 10 of Fig. 1. As shown in Fig. 2, the entrance slave unit 1 includes a call button 11 for calling the resident, a camera 12 for capturing images of visitors, an image processing unit 13 for processing the images captured by the camera 12 to be transmitted to the room master unit 2, a microphone 14a and a speaker 14b for communication, an audio unit 14 for controlling the microphone 14a and the speaker 14b, a lighting unit 15 for capturing images at night with the camera 12, a slave unit CPU 16 for controlling the entrance slave unit 1, a slave unit communication IF 17 for communicating with the room master unit 2, a receiving unit 18 for receiving signals transmitted from the delivery box 3, and the like. The camera 12 is a wide-angle camera that can capture images at a wide angle of 180 degrees, and the wide-angle captured image or a zoomed image of a preset area within the capture area is displayed on the room master unit 2.

[0014] The room master unit 2 is equipped with a call button 21 for answering calls from the front door sub-unit 1, a monitor 22 for displaying the image captured by the camera 12, a video processing unit 23 for processing the video signal transmitted from the front door sub-unit 1 to display it on the monitor 22, a microphone 24a and speaker 24b for making calls, an audio unit 24 for controlling the microphone 24a and speaker 24b, an operation unit 25 for controlling various displays on the monitor 22 and for performing recording operations, a memory unit 26 for recording the image captured by the camera 12, a master unit CPU 27 as a control unit for controlling the room master unit 2, and a master unit communication IF 28 for communicating with the front door sub-unit 1.

[0015] The delivery box 3 is provided with a sensor device 3a that detects the operation of a door (not shown) that is opened and closed when storing / removing packages, and the sensor device 3a is connected by a signal line L2 to the entrance slave unit 1. When the door of the delivery box 3 is opened, the sensor device 3a detects this and outputs a door open detection signal.

[0016] Here, we will explain the image captured by camera 12 that is displayed on monitor 22. Camera 12 always captures images at a wide angle of 180 degrees, and monitor 22 displays an image of a preset area in wide-angle or digitally zoomed format. This digital zoom setting is performed by a predetermined operation on operation unit 25 (provided as a touch panel on monitor 22). It should be noted that this setting can be different between the display when the call button 11 is operated and the display when a signal from the delivery box 3 is received.

[0017] For example, if a visitor often stands directly in front of the entrance slave unit 1, i.e., directly in front of the camera 12, the monitor 22 is set to display an enlarged image of the front. Also, if a visitor often stands to the left or right of the entrance, away from the front, the monitor 22 is set to display an enlarged image of that direction. In this way, an image that makes it easy to identify the visitor is displayed on the monitor 22. Similarly, if you want to capture an image of the operator of the delivery box 3, you can set the zoom so that the area where the operator will enter is enlarged and displayed. The set display conditions are stored in the storage unit 26, and the zoomed image according to the set conditions is displayed on the monitor 22 unless the settings are changed. When recording the image captured by the camera 12, the basic control is to record in the storage unit 26 the same image as that displayed on the monitor 22, but it is also possible to record a wide-angle image captured by the camera 12 before zooming, which is different from the image displayed on the monitor 22. This increases the probability that a suspicious person will be captured in the image.

[0018] The operation of the intercom system 10 configured as described above is as follows: However, the operation of calling a resident by operating the entrance slave unit 1, the operation of displaying the image captured by the camera 12 on the room master unit 2 in response to the call operation, and the operation of being able to talk to a visitor while the visitor is displayed on the monitor 22 are the same as those of the conventional system, and therefore will not be described here. Here, the explanation will be centered on the operation of opening the door that is operated when storing or removing parcels in the delivery box 3.

[0019] When the door is opened, the sensor device 3a detects it and transmits a signal (door open detection signal) via the signal line L2 to the entrance slave unit 1. This signal is transmitted to the room master unit 2 via the entrance slave unit 1, and the master unit CPU 27 controls it to operate as follows: Camera 12 is activated to begin capturing images, and the captured image is displayed on monitor 22 of room master unit 2. However, the image displayed on monitor 22 upon receiving a door-open detection signal is a portion of the image captured at a wide angle, and is zoomed so that the image shows delivery box 3 and can be seen by the operator, and the zoomed image is displayed. The image displayed on the monitor 22 is then recorded in the storage unit 26.

[0020] Furthermore, if the delivery box 3 does not fall within the imaging range of the camera 12, or if the installation environment is such that the operator cannot even enter, it is advisable to display the image captured at the maximum angle of 180 degrees on the monitor 22 and record this wide-angle image in the memory unit 26, which increases the probability that the person operating the delivery box 3 will be captured, and is useful for detecting suspicious persons, etc.

[0021] Furthermore, a notification sound is sounded by speaker 24b of room master unit 2 to notify the resident that delivery box 3 has been opened, and also by speaker 14b of front door slave unit 1. The notification sound sounded by room master unit 2 has a different tone color than the notification sound sounded in response to a call operation. The notification sound sounded by front door slave unit 1 also has a different tone color and volume than the call confirmation sound sounded in response to a call, and is louder.

[0022] In this way, when the delivery box 3 is opened, a notification sound is emitted from the entrance slave unit 1, making the person who opened the box feel that their actions are being monitored, which is effective in deterring suspicious people who try to take out their packages.In addition, the situation is recorded, so it is possible to check later who opened the box, which is useful in the event of theft, etc. Furthermore, by zooming in and recording the operator of the delivery box 3, it is easy to identify the person who opened the delivery box 3. In addition, the notification sound emitted by the room main unit 2 when the delivery box 3 is opened is different from the call sound emitted by the front door sub-unit 1, so residents can recognize that the delivery box 3 is being opened by the sound emitted from the room main unit 2, making it easier to take action.

[0023] In the above embodiment, the camera 12 is configured to capture images at a wide angle of 180 degrees, but it may also be configured to capture images at a wide angle of about 160 degrees, and this angle can also capture images over a wide range, providing the same functionality as a 180-degree wide-angle camera. Furthermore, the delivery box 3 may be directly connected to the room main unit 2, or may be wirelessly connected to the entrance slave unit 1 or the room main unit 2. Furthermore, although the zoom of the camera 12 has been described as a digital zoom, it may be an optical zoom using a lens. However, in the case of an optical zoom, the image displayed on the monitor 22 and the recorded image are always the same image. [Explanation of symbols]

[0024] 1·· Entrance handset, 2·· Room main unit, 3·· Delivery box, 3a·· Sensor device, 10·· Intercom system, 11·· Call button, 12·· Camera, 16·· Handset CPU, 21·· Call button, 22·· Monitor, 25·· Operation unit, 26·· Memory unit, 27·· Main unit CPU (control unit).

Claims

1. An intercom system having a door slave unit for calling a resident and a room master unit for responding to the call, the door slave unit having a camera for capturing images of visitors, the room master unit having a monitor for displaying images captured by the camera and a memory unit for recording images, The delivery box is provided with a sensor device that outputs an open door detection signal to the outside when the door is opened, a receiving unit for receiving the door-open detection signal in either the entrance slave unit or the room master unit; and a control unit that, when the receiving unit receives the door-open detection signal, causes the entrance slave unit to emit a predetermined notification sound and activates the camera to record the captured image in the storage unit; The camera is capable of capturing images at a wide angle of 160 to 180 degrees, The storage unit stores a specific area into which the camera zooms so that the operator of the delivery box can enter; The control unit receives the door-opening detection signal, causes the camera to zoom in on the specific area stored in the memory unit, and records the image.

2. An intercom system having a door sub-unit for calling a resident and a room main unit for responding to the call, the door sub-unit having a camera for capturing images of visitors, the room main unit having a monitor for displaying images captured by the camera and a memory unit for recording images, The delivery box is provided with a sensor device that outputs an open door detection signal to the outside when the door is opened, a receiving unit for receiving the door-open detection signal in either the entrance slave unit or the room master unit; and a control unit that, when the receiving unit receives the door-open detection signal, causes the entrance slave unit to emit a predetermined notification sound and activates the camera to record the captured image in the storage unit; The camera is capable of capturing images at a wide angle of 160 to 180 degrees, The control unit receives the door-open detection signal, causes the camera to capture an image at the maximum angle of view, and records the image.

3. 3. The intercom system according to claim 1, wherein the control unit receives the door-open detection signal and causes the room master unit to emit a sound different from a sound that notifies a call.

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