JP2001156925A - Video control device for multiple dwelling house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a configuration and wiring and to reduce power consumption. SOLUTION: This system is composed of plural entrance machines 1a and 1b with camera for sending video signals fetched from cameras, a video controller 3 having a switching part 21 for switching which one of entrance machines with camera is to be connected, and a living room monitor 31 having a video display part 31a for displaying the video of video signals from the video controller and the video controller is provided with a switching control part 20 for judging which one of called entrance machines with camera is to be connected by the switching part corresponding to the presence/absence of a DC voltage superimposed on the video signal from the entrance machine with camera.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video controller for a multi-family house, and more particularly to a video control apparatus for a multi-family house, which has a simplified structure and wiring and consumes less power.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a video control apparatus for a multi-family house having a configuration shown in a block diagram of FIG.

[0003] The image control device for a multiple dwelling house shown in the figure is installed at the entrance of a plurality of dwelling units forming a multiple dwelling house, and has a plurality of cameras (not shown) having a calling function, a telephone call function, and a video imaging function. Entrance machines with camera 51a, 51b
A data controller 52 having a data transmitting / receiving unit 60;
A video controller 53 having a switching control unit 70, a switching unit 71, and a power supply unit 72;
0, a living room master unit 54 having a living room monitor 81.

The data transmission / reception section 60 of the data controller 52 includes control lines L51a and L51b, and communication lines L52a and L52b.
Through a plurality of entrance machines with cameras 51a, 51b
And a switching control unit 70 of the video controller 53 via a control line L61, and a call notification / communication unit 80 of the parent device 54 via a control line L62 and a communication line L63. The switching unit 71 of the video controller 53 includes a plurality of entrance devices with cameras 51a and 51b via video transmission lines L53a and L53b, a living room monitor 81 of the parent device 54 via the video transmission line L71, The switching control unit 70 connected to the power supply unit 72 is connected to each of them. Further, the call notification / communication section 80 of the living room master unit 54 includes a living room monitor 8.
1 is connected.

It is to be noted that a plurality of entrance machines with cameras 51a, 51b
Is supplied with a DC voltage from a commercial AC power supply (not shown) via a power adapter as an operation power supply.

[0006] In the video control apparatus for a condominium thus constructed, a call function (not shown) of the camera-equipped entrance device 51a is activated by a visitor or the like among the plurality of camera-equipped entrance devices 51a and 51b. Then, a calling signal S51a containing information (identification information) for identifying the camera-equipped entrance machine of the calling source is transmitted to the control line L51a.

The data transmission / reception unit 60 of the data controller 52
Is a call signal S51a received via the control line L51a.
A control signal for detecting a call from the camera-equipped entrance device 51a based on the identification information, and forming a signal transmission path between the call-origin camera-equipped entrance device 51a and the room monitor 81 of the room parent device 54. S61 is transmitted to the control line L61, and the detected call detection signal S62 is transmitted to the control line L62.

The switching control unit 70 of the video controller 53 controls the switching unit 71 based on the control signal S61 received via the control line L61, using the DC voltage supplied from the power supply unit 72 as the operating power supply. Then, the video transmission line L53a connected to the calling camera-equipped entrance device 51a and the video transmission line L71 connected to the living room monitor 81 of the living room parent device 54 are connected. Also, the call notification / communication unit 80 of the living room master unit 54
Based on the call detection signal S62 received via the control line L62, a ringing tone is sounded to notify a call (call notification function), and the living room monitor 81 is activated.
As a result, the video signal S52a fetched from the camera (not shown) is transmitted to the video transmission line L53a, the switching unit 71 of the video controller 53, the video transmission line The image is displayed on the room monitor 81 of the room parent device 54 via L71.

The resident in the dwelling unit confirming the call from the camera-equipped entrance device 51a by the visitor or the like responds based on the image display and the ringing of the ringing sound, and the call notification / call unit 80 of the living room base unit 54. Activating the call function (not shown)
From the call function, a call path is formed between the call function (not shown) of the camera-equipped entrance device 51a via the call line L63, the data transmission / reception unit 60 of the data controller 52, and the call line L52a, and a two-way call is established. I do.

[0010]

However, in the conventional video control apparatus for a condominium, the video signal taken from the camera (not shown) of the call-in camera-equipped entrance machine is used as the living room monitor 81 of the main living room unit 54. In order to control the switching unit 71 of the video controller 53 that forms a signal transmission path for displaying a video on the display unit, the data transmission / reception unit 60 of the data controller 52 that has received a call signal from the caller-equipped front door with camera. The control signal sent from the control unit L61 must be transmitted to the switching control unit 70 of the video controller 53 via the control line L61, which is disadvantageous in that the wiring becomes complicated in configuring the device. Since a DC voltage from the power supply unit 72 is required as an operation power supply, and this power supply is supplied even when the apparatus is in a standby state, there is a problem that power consumption increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and uses a DC voltage superimposed on a video signal fetched from a calling camera-equipped entrance device as an operating power source for a switching control unit of the video controller. By switching the switching unit under the control of the switching control unit to form a signal transmission path between the caller's front door with camera and the room monitor of the parent room, the configuration and wiring of the device are simplified and power consumption is reduced. It is an object of the present invention to provide a video control device for an apartment house.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, an image control apparatus for a condominium according to the present invention comprises: a plurality of front doors with cameras for transmitting video signals taken from cameras; It is composed of a video controller having a switching unit for switching whether to connect the entrance device, and a living room monitor having a video display circuit for displaying a video signal from the video controller, and the video controller is provided by a camera-equipped entrance device. And a switching control unit that determines which of the camera-equipped front doors to be connected by the switching unit based on the presence or absence of the DC voltage superimposed on the video signal.

According to such an image control device for a condominium, the DC voltage superimposed on the image signal fetched from the calling camera-equipped entrance device is used as the operating power supply of the switching control section of the image control device. The switching unit is switched by the control of the control unit, and a signal transmission path is formed between the caller-equipped front door with camera and a video display circuit forming a room monitor of the parent room. This simplifies the configuration and wiring of the device and reduces power consumption.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of the present invention;

FIG. 1 is a block diagram showing the configuration of an embodiment of an image control apparatus for a condominium according to the present invention, wherein a plurality of camera-equipped entrance machines 1a installed at the entrances of a plurality of dwelling units forming an apartment. 1b and a plurality of front doors with camera 1 via control lines L1a, L1b and communication lines L2a, L2b, respectively.
a and 1b, a data controller 2 connected to a living room master unit 4 described later via a control line L11 and a communication line L12, respectively, and a plurality of front doors 1a and 1b with a camera via video transmission lines L3a and L3b. The video controller 3 is connected to the parent room 4 via a video transmission line L21, and the parent room 4 installed in the dwelling unit.

The plurality of camera-equipped front doors 1a and 1b have the same configuration, and include a call function for a visitor to call a resident in a dwelling unit, a call function for establishing a call with the called resident, and a visitor. And a camera (not shown) as an image capturing function for capturing an image of the surrounding environment such as the entrance where the camera-equipped entrance machine is installed, and a DC power supply via a power adapter from a commercial AC power supply (not shown). Voltage is supplied as operating power.

The data controller 2 controls the control lines L1a, L1
b, connected to a plurality of camera-equipped entrance devices 1a and 1b via communication lines L2a and L2b, respectively, receives a call signal from the camera-equipped entrance device of the calling source, and receives a call notification / communication part 30 of the parent device 4 of the living room. A call detection signal is sent out to a control line L11 connected to a call data receiving circuit 30a, and a call circuit 30c forming a call notification / call unit 30 of the camera-equipped entrance device of the caller and the parent device 4 of the living room. And a data transmission / reception unit 10 for forming a communication path by connecting the communication line L12.

The video controller 3 controls the video transmission lines L3a, L3
A DC voltage connected to a plurality of camera-equipped entrance devices 1a and 1b via 3b and superimposed on a video signal captured from a camera of the calling-equipment entrance device with a camera becomes an operation power source,
The switching control unit 20 for judging a call from any of the camera-equipped entrance devices, and the first and second make contacts P1a and P1b are connected to the plurality of camera-equipped entrance devices 1 via the video transmission lines L3a and L3b.
a, 1b, a video display circuit 31 in which a switching contact P2 forms a living room monitor 31 of the living room master unit 4 via a video transmission line L21.
a switching unit 21 that is connected to the switching control unit 20 and forms a signal transmission path between the caller-equipped entrance device with camera and the video display circuit 31a that forms the living room monitor 31 of the living room parent device 4 under the control of the switching control unit 20. .

The parent room unit 4 controls the call data receiving circuit 30a and the call data receiving circuit 30a for detecting a call from any of the camera-equipped entrance devices based on the call detection signal received via the control line L11. A call notification circuit 30b including a loudspeaker or the like (not shown) for giving a call sound by ringing a call, etc., and used by a resident in the dwelling unit confirming the call to answer and establish a call with a visitor or the like. A call notification / communication unit 30 including a call circuit 30c including a handset or the like (not shown), and a video for displaying a video signal from the camera-equipped entrance machine of the call source received via the video transmission line L21. A room monitor 3 including a display circuit 31a and a start-up data receiving circuit 31b that activates the video display circuit 31a under the control of the call data receiving circuit 30a.
And 1.

The operation of the image control apparatus for a condominium thus constructed will be described below.

Of the plurality of front doors 1a and 1b with a camera,
When a call function (not shown) of the camera-equipped entrance device 1a is activated by a visitor or the like, a call signal S including information (identification information) for identifying the call-origin camera-equipped entrance device.
1a is sent to the control line L1a. In addition, as a video imaging function of the camera-equipped front door 1a in which the calling function (not shown) is activated, a video signal taken in from a camera (not shown) is supplied from a commercial AC power supply (not shown). The DC voltage via the power adapter is superimposed and this video signal S2a
Is transmitted to the video transmission line L3a.

The data transmission / reception unit 10 of the data controller 2
Based on the identification information forming the call signal S1a received via the control line L1a, a call from the camera-equipped entrance machine 1a is detected, and the detected call detection signal S11 is transmitted to the control line L11.
To send to. Further, the switching control unit 20 of the video controller 3
The DC voltage superimposed on the video signal S2a received via the video transmission line L3a is used as an operating power source, and the source of the received video signal is determined to be the camera-equipped front door 1a. The switching unit 21 is controlled to form a signal transmission path between the entrance device 1a and the video display circuit 31a that forms the living room monitor 31 of the living room parent device 4. Thereby, the first make contact point P1a of the switching unit 21 of the video controller 3
Is closed, and the video signal S2a fetched from the camera of the caller's camera-equipped front door 1a is transmitted to the video transmission line L3a and the closed first make contact P of the switching unit 21 of the video controller 3 is closed.
1a, the switching contact P2, and the video transmission line L21 are transmitted to the video display circuit 31a forming the living room monitor 31 of the living room parent machine 4.

A call data receiving circuit 30a constituting a call notification / communication section 30 of the room base unit 4 performs a call from the camera-equipped entrance machine 1a based on a call detection signal S11 received via a control line L11. By detecting the signal, the call notification circuit 30b is controlled to generate a ringing sound to notify the call, and a start signal S21 for activating the video display circuit 31a is sent to the start data receiving circuit 31b forming the living room monitor 31. Send out. The video display circuit 31a activated under the control of the startup data receiving circuit 31b that has received the startup signal S21 displays a video of the video signal S2a received via the video transmission line L21.

Based on the video display and the ringing sound, the resident in the dwelling unit who has confirmed the call from the camera-equipped entrance device 1a by the visitor or the like answers and responds to the call notification / call unit 30 of the main room base unit 4. When the call circuit 30c is activated, a call between the call circuit (not shown) of the camera-equipped entrance machine 1a from the call circuit via the call line L12, the data transmission / reception section 10 of the data controller 2, and the call line L2a. A route is formed, and a two-way call is established.

[0025]

As is apparent from the above description, according to the video control apparatus for a multi-family house of the present invention, the DC voltage superimposed on the video signal fetched from the caller's camera-equipped front door is controlled by the video controller. The switching power supply is operated by the switching control unit, and the switching unit is switched under the control of the switching control unit, so that a signal transmission path is formed between the caller's camera-equipped entrance device and the video display circuit forming the room monitor of the room's parent device. . This eliminates the need for a control line that connects the data transmission / reception unit of the data controller and the switching control unit of the video controller as in the conventional example, and eliminates the need for a power supply unit that supplies operating power to the switching control unit. This simplifies the configuration and wiring of the device and reduces power consumption.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an image control device for a multi-family house according to the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional video control device for a condominium.

[Explanation of symbols]

 1a, 1b... A plurality of entrance machines with cameras 3... Video controller 20... Switching control unit 21... Switching unit 31... Living room monitor 31a. .... Video display circuits

Claims (1)

[Claims] A video controller (1) having a plurality of camera-equipped entrance devices (1a, 1b) for transmitting an image signal captured from a camera and a switching unit (21) for switching which of the camera-equipped entrance devices is connected. 3) and a living room monitor (31) having a video display circuit (31a) for displaying a video signal from the video controller, wherein the video controller converts a video signal from the camera-equipped entrance device. An image control device for a multi-family housing, comprising: a switching control unit (20) for judging which of the camera-equipped front doors to be connected by the switching unit based on the presence or absence of the superimposed DC voltage.