JPS63227292A - Guest reception system - Google Patents

Abstract

PURPOSE:To simplify a wiring to s monitor control circuit by forming the monitor control circuit so as to operate a monitor television at the time of outputting a video detecting signal from a monitor video signal detecting circuit. CONSTITUTION:In a guest reception system, a television camera 3 is disposed correspondingly to a doorphone 2 carrying out a speed with an indoor interphone, the television camera 3 is operated according to the operation of the doorphone 2 and a monitor video picked up by the television camera 3 is displayed on a monitor television 7. The presence and the absence of a monitor video signal transmitted by a coaxial cable are detected in the monitor video signal detecting circuit 9, when the video detecting signal is outputted from the monitor video signal detecting circuit 9, the monitor control circuit 8 is formed so as to operate the monitor television 7. Thereby, it is not required to form a wiring to the monitor control circuit from an interphone control circuit.

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a visitor reception system in which the situation at the entrance can be monitored with a television camera when a call is made between the door phone at the entrance and the indoor intercom with the visitor. It's a flash in the system.

[) V-scenery technology 1 Conventionally, in this type of visitor reception system where the situation at the entrance can be monitored with a TV camera when talking with a visitor in the darkness between the doorbell at the entrance and the intercom inside, In response to the call, the television camera and the television monitor are turned on, and the video signal input to the television monitor is switched so that the monitor image is displayed. However, in such conventional examples, the operation of the monitor TV was controlled by detecting the intercom call signal.
It is necessary to wire the control 41 between the intercom control circuit and the monitor television control circuit, resulting in a problem that the wiring becomes complicated. Furthermore, if the intercom is not provided with an output terminal for an intercom call signal, there is a problem that wiring becomes more troublesome.

[Object of the Invention J The present invention has been made in view of the above-mentioned α, and its purpose is to provide a visitor reception system that can simplify the wiring to the monitor control circuit. be.

[Disclosure of the Invention] (Structure) The present invention provides a method for disposing a television camera corresponding to a doorphone that makes a call with an indoor intercom, operating the television camera in accordance with the operation of the doorphone, In a visitor reception system in which monitor images captured by By forming the monitor control circuit so as to operate the monitor television when the video detection signal is output, wiring to the monitor control circuit can be simplified.

(Embodiment) FIGS. 1 to 3 show an embodiment of the present invention, la
, 1b are home telephones equipped with an intercom function, and are arranged in living rooms, kitchens, etc., with home telephone 1b serving as the main unit. Door phones 2 at 2 b for making calls with these home telephones 1 a and 1 b are installed at the entrance, back door, etc., and each door phone 2 at 2 b has a COD,
Small television cameras 3a and 3b formed using an MO8 type image sensor etc. are arranged side by side to create an outdoor unit)X,
,X, is formed, and this outdoor unit)
, it is possible to have an intercom conversation with a visitor and to monitor the visitor's upper body (images taken by television cameras 3a and 3b). In addition, each television camera 3a, '3
b is operated in response to a call from the door phone 2av2b, and the monitor video signals Vma and Vmb captured by both the television cameras 3a and 3b are sent to the mixer circuit 5.
The mixed signals are mixed and transmitted via the coaxial cable 6, and displayed on the monitor televisions 7ay7b of the indoor equipment units) Y, , Y2. In the visitor reception system configured in this way, the monitor video signal V Iat V mb output from the television camera 3 at a b is transmitted via the coaxial cable 6 together with the television broadcast signal Vt received by the antenna AT. , monitor control circuit 8a.

8b operates the monitor television 7 aw 76 to automatically display the monitor image when the monitor image signal V11 is detected by the monitor image signal detection circuits 9a and 9b.

FIG. 2 shows a specific example of a residential information system by adding an electric lock control system, a load control system, etc. to the visitor reception system of the present invention.Hereinafter, other configurations and operations of this specific example will be explained. I will explain about it. First of all, the indoor equipment installed at important points in the house (living room, kitchen, etc.) is the main if! unit Y0 and sub-device unit)
The main device unit Y0 and the sub device units Yl-Y2 are used for interphone calls and telephone calls #14 at 4b, and time division multiplex control signals are transmitted. Control 1@4c, common signal line 4
They are connected via a coaxial cable 6 that transmits the d1 monitor video signal and the television broadcast signal Vt. Here, the main device unit Y0 includes a camera switching unit 20, a central monitoring and control device 21, an FC source section 22, a relay control terminal 23, a remote control relay 24, and a remote control transformer 25.
, an electric lock control section 26, and an electric lock power supply section 27, and li! It sends and receives monitoring data and control data to and from the Wc equipment Y, Y, and the door phone 2 at 2 is equipped with a television camera 3a, 3b.
Outdoor unit X, , X, consisting of b, N locking device 28 installed on the entrance sliding door, ventilation fan 29a1 illuminator Jt, 29
It is designed to control loads such as b.

Further, the sub-device unit Y includes a monitor control circuit 8a,
A monitor video signal detection circuit 9a consisting of a branching circuit 10a and a signal conversion circuit 11a, and operation signals (such as automatic/manual switching, TV, monitor switching, etc.) transmitted from an optical transmitter 30 and received by an optical receiver 31. wireless relay terminal device 3 that captures signals (signals) and sends them back to the central monitoring and control RC device 21
2, and each operation switch S , , S 2 of the operation section 33 . S
, . . . monitors the status and displays the operation.

A monitoring control terminal 34a that controls the blinking of .
34b, 34c, and signal conversion interfaces such as a TV interface circuit 35a and a camera interface circuit 35b.

Further, the sub-device unit Y2 includes a monitor control circuit 8b,
A monitor video signal detection circuit 9b consisting of a branching circuit 10b and a C/signal conversion circuit 11b, a monitoring control terminal 37,
It is formed by an operation section 38 incorporating a supervisory control I terminal device, a TV vane face 39a, and a dimming interface 39b that controls the dimming of the lighting 11i44.

By the way, the monitor video signal detection circuit 9 at S b of the bisplitting device unit) Y, Y2 is the branching circuit 10a*10
b, and signal conversion circuits 11a and 11b, and in the branching circuits 10+c and 10b, the monitor video signal V
It separates and outputs the flat V m& and the television signal Vt, and also outputs the monitor video signal V@asV.
When mb is detected, as shown in FIG. 4(a),
It outputs an IV video detection signal Vc.

On the other hand, the signal conversion circuits 8g and 8b, as shown in FIG.
, and transistors Q, ,Q, are formed,
When this video detection signal Vc is output, as shown in FIG. 4(b)
A doorphone signal Vd (a signal indicating the state of a call from the doorphone (0, 2V) and a call status fi (7V)) as shown in FIG. therefore,
In the monitor control circuits 8a and 8b, this doorphone signal Vd
The voltage level is the reference voltage V! l+, VB, and when a call from the door phone 21LtZb is detected, the display image on the monitor television 7 at 7b is switched to the monitor image to monitor the visitor. . In addition, in the embodiment, the video detection signal V
ce (Ft number conversion circuit 11a.

At step 11b, the signal is converted into the doorphone signal Vd output from the doorphones 2a and 2b and sent to the monitor control circuits 8a and 8b.
Since the doorbell signal output from the doorphone 2 at 2b is input directly to the monitor TV 7a,
, 7b can be used as is, making it possible to share the circuit.

The control terminal 40.41 is a terminal that receives control data for controlling the water heater 42 and the air conditioner fi43 via the control I line 4c and forms a load control i signal. The water heater 42 and air conditioner 43 are controlled by the water heater 42 and the air conditioner 43. The electric lock fi28 also includes a secret operation unit 50 that determines whether the password matches and unlocks the sliding door electric lock 53 via the electric lock interface 51, and a secret operation unit 50 that unlocks the electric lock 53 from the indoor side and operates the electric lock 53 from the indoor side. It is made up of a hand-held operation unit 52 that sets the mode, and a motor controller 54 that controls a motor 55 that opens and closes the sliding door.

The operation of the embodiment will be outlined below. Now, the central monitoring and control table fi21 of the main device unit Y0 is used for each terminal device 23, 26, 32 that monitors switch operations, controls load, etc.
, 34a, 34b, 34c, 40, and 41 to return monitoring data, and transmit a transmission signal Vs for transmitting control data via a pair of signals 4!4c to centrally monitor and control the entire system. The transmission signal Vs sent from the central monitoring and control device 21 is
As shown in Figure (a), the MII is composed of a start M number ST, an address data signal AD, a control data signal CD, and a return waiting period setting signal WT, and a transmission signal Vs transmits transmission data using pulse modulation. Multipolar signal to be transmitted (±2
4V). On the other hand, each terminal device 23°26.32
．． 34a, 34&, 34c, 40.41, the signal 4i
4C rectifies and smoothes the transmission signal Vs transmitted via c to form a circuit power supply, detects a match between the address data transmitted by the transmission signal Vs and its own unique address, and detects the address match. When the transmission signal Vs is transmitted, the load control data transmitted by the transmission signal Vs is captured,
A return signal VB consisting of a current mode signal (a signal obtained by connecting a low resistance between control lines) is sent during the return standby period set by the return standby period setting signal WT.

By the way, the central monitoring control table [21 is the home telephone 1
It also controls the operation of the door phone 2 at 2 b and the television cameras 3 a, 3 b, which perform intercom calls between the door phones 2 a and 1 b via the communication lines 4 at 4 b, and calls any of the door phones 2 a, 2 b. When the switch is turned on and a ringing signal is output, the doorbell 2
TV camera 3 compatible with at 2 b
At the same time, the camera switching unit 20 is controlled to send monitor video signals V ma and V mb output from the television cameras 3 a and 3 b to the coaxial cable 6 . In this case, the coaxial cable 6 is connected to the television broadcast signal (U/
V broadcasting) is also mixed and transmitted simultaneously (frequency multiplexed transmission). Here, the monitor video signal detection circuit 9
at S b detects the presence or absence of the monitor video signal V l1llt V mb transmitted via the coaxial cable 6, and the video detection signal Vc is transmitted from the branching circuits 10a and 10b of the monitor video detection circuit 9 at 9 b. When the signal is outputted, the signal conversion circuits 11a and llb form an intercom signal Vd and input it to the monitor control circuits 8a and 8b. In the monitor control circuits 8a and 8b, when the operation mode is set to an automatic response mode in which the monitor operation is started by automatically responding to a call from the doorphone 2ay2b, this doorphone emergency signal V
d by V Ahon 2a, 2. A call from b or an intercom call in progress is determined by fq, and the monitor TV 41
The monitor image is automatically displayed at t4b.

In addition, when the manual response mode is set, the monitor TV 4
Visitors can be monitored by appropriately switching the at4b display to a monitor image.

As described above, in the visitor reception system according to the present invention, the monitor video signal V transmitted through the coaxial cable 6
The monitor control circuits 88t a b are formed to detect the presence or absence of the 1eas V mb and operate the monitor televisions 4 a, 4 b when the video detection signal Vc is output from the monitor video detection circuits 9 a, 9 b. from the intercom control circuit to the monitor control circuits 8a and 8b.
Since there is no need to conduct wiring to, the wiring can be simplified, making wiring work easier during construction.

Note that the monitor control circuits 8a and 8b are configured to turn on and off the power at the same time as switching the video signal to be displayed. In addition, the monitor control circuit 8 at a b can control the monitor television 7 by operating the switches on the operation section 33 and 38.
It is equipped with a switching circuit that switches the image displayed on at7b to a TV broadcast image or a monitor image, a mode Y switching circuit that switches between automatic response mode and manual response mode, etc., so that it can easily correspond to actual usage conditions. It has become.

In addition, the operation parts 33 and 38 are also provided with operation switches for unlocking the electric lock fi28 provided on the sliding door, automatically opening/closing the sliding door, and locking the sliding door.
The electric lock device 28 can be remotely monitored and controlled through centralized monitoring and control.

[Effects of the Invention] As described above, the present invention provides a television camera that is disposed in correspondence with a doorphone that makes a call with an indoor intercom, operates the television camera in accordance with the operation of the doorphone, and operates the television camera in accordance with the operation of the doorphone. In a visitor reception system in which monitor images captured by A monitor control circuit is formed to operate the monitor TV when a video detection signal is output, and there is no need to wire from the intercom control circuit to the monitor control circuit, so the wiring can be simplified. There is.

[Brief explanation of the drawing]

# & 1 is a block circuit diagram showing a schematic configuration of an embodiment of the present invention, FIG. 2 is a block circuit diagram of a specific example of the same, FIG. 3 is a circuit diagram of the main part of the same, and FIGS. 4 and 5 are It is an operation explanatory diagram same as the above. 1 at 16 is a home telephone, 2 a and 2 b are door phones, 3 at a b is a television camera, 6 is a coaxial cable, and 7 a. 7b is a monitor television, 8 at a b is a monitor control circuit, and 9a and 9b are monitor video signal detection circuits.

Claims (1)

[Claims] (1) A television camera is installed in correspondence with the doorphone that makes a call with the indoor intercom, and the television camera is operated according to the operation of the doorphone, and the monitor image captured by the television camera is displayed on the monitor TV. In a visitor reception system configured to display a monitor image on A visitor reception system characterized by forming a monitor control circuit to operate a television.