JPS6097793A - Television camera for watching entrance of house during person's absence - Google Patents

Abstract

PURPOSE:To allow the check of a visitor and a message when absence by recording an image signal or the sound signal of a visitor, which is photographed by a television camera every operation of a calling button of an interphone on a VTR. CONSTITUTION:A camera containing box 1 is installed at the room side of a front door 2, and at the outside an interphone 3 is installed. In the camera containing box 1, a VTR5 incorporating a camera provided with reproducing function is held freely connectably and disconnectively, and focusses the light image of a visitor standing at the outside of the front door, on its image pickup face through an opening 9. The video signal outptted from said VTR5 is transmitted to a monitor television in a room through an output cable 11.

Description

[Detailed description of the invention] This invention relates to an entrance television camera device.

Recently, entrance TV camera devices have been put into practical use and are beginning to become popular in homes. However, a device for recording video and audio of visitors by installing a video tape recorder (VTR) linked to an intercom as a home entrance television camera device has not been put into practical use. However, there is a high demand for checking on visitors and replaying messages when they are away.

The present invention was made in response to such a demand, and provides a practical entrance television camera device with a recording function.

For this purpose, in the entrance TV camera device of the present invention, C is
This system is equipped with a VTR and its control circuit, which is linked directly to the intercom switch operated by the visitor and automatically records the visitor's video and audio each time the switch is operated. There will be no fixed television camera or VTR for exclusive use of the television camera,
By providing a storage box that removably stores the portable VTR and TV camera and storing and using the portable VTR and TV camera only when they are not used for mobile recording, a low-cost entrance TV camera device with a recording function is realized. It is something to do.

The storage box for the TV camera includes an audio signal cable with a connection jack for inputting the audio signal from the intercom to the VTR, a call button for the entrance intercom, and a fixed-time recording mode for the video camera and VTR. The remote control circuit that generates remote control signals that control the VTR by operating buttons on the monitor TV side and performs rewinding, playback, fast forwarding, etc., and the TV camera can be attached and detached with a single touch. A holding element that holds and stabilizes the current state, a power supply element for a TV camera that turns on and off in conjunction with the push button switch of the intercom device pressed by a visitor, and an entrance that penetrates the wall in front of the entrance. An optical system element that optically connects a wide-angle lens for photographing an area and a television camera lens, and an imaging lens for focusing an image of a subject on the photoelectric conversion surface of the television camera; It is equipped with a signal cable that connects the indoor monitor TV, and an electric shutter that opens and closes in conjunction with the intercom device's pushbutton switch to protect the image pickup tube from direct sunlight.

Further, if necessary, a means for inserting and recording the date and time of photographing the visitor into the photographic screen of the video camera which photographed the visitor may be implemented as necessary.

Next, one embodiment of the present invention will be described in detail using the drawings.

FIGS. 1 and 2 are sectional views of the entrance TV camera device of the present invention, and FIG. 3 is a block diagram showing the control circuit section.

Among the first factors, 1 is a camera storage box, which is attached to the wall on the indoor side sandwiching the intercom device 3 provided on the front side of the entrance wall 2 and the wall 2. 4 is a holding backing that holds the TV camera and restricts its movement, and has a playback function.

5 is held in a camera storage box 1 in a detachable state and stabilized. 6 is a lens group including a wide-angle lens,
An optical system consisting of a reflecting mirror 7 and a television camera lens 8 captures an optical image of a visitor standing on the front side of the entrance through an opening 9 provided in the entrance wall portion 2.
The image is formed on the imaging surface of 几5. A signal connector 10 is connected to the signal cable 11 via a control circuit section 15. There is a camera-integrated VTR in the signal cable ll.
A video signal line for transmitting the video signal output from 5 to the indoor monitor TV, an audio signal line for inputting the audio signal from the intercom 3 to the camera-integrated vTR5, and a camera-integrated line from the monitor TV side to the camera-integrated vTR5. A control signal line for inputting a remote control signal for controlling the VTR 5 to the control circuit section 15 is included. Reference numeral 12 denotes a power connector, which converts alternating current from an AC15 source line 13 into direct current using an AC adapter 14, and supplies power to the camera-integrated VTR 5 via a control circuit section 15. 16
is at the door.

Camera integrated fiVTl from camera storage box l (closes the opening of storage box 1 for putting in and taking out 5.) 7 is an electric shutter, and only when the push button 18 of the intercom 3 is pressed, the control circuit unit It opens for a certain period of time under the control of 15, and protects the image pickup tube from direct sunlight.19 is the entrance door.

Next, in FIG. 2, l is a camera storage box, 2 is an entrance wall part, 3 is an intercom device, 18 is a push button,
5 is a camera-integrated FIVTR, 8 is a TV camera (Q) lens-16 (- is a layered portion shown in Figure 0-Hani 1), and 200 is a holding/shoeing 4 provided on the door portion 16. 201 is a holding backing 4 fixed to the storage box 1.

Next, in FIG. 3, reference numeral 300 is a video signal line that transmits operation signals for the camera-integrated VTR 5 to a monitor television in the room. 301 is an audio signal line of the intercom 3 which is input to the camera-integrated VTR 5. 302 is a remote control signal set, in which key operation signals from the indoor monitor television side and operation signals of the push button I8 are inputted to the control element 303 in the form of serial code data. Based on the input control signal, the control element 303 controls the camera-integrated VTIL 5 to transmit a playback start signal line 304% stop signal line 305, rewind signal line 306 . In the case of inputting each signal via the fast forward 1 @ line 307, an on-off signal for opening and closing the electric shutter 17 is output via the shutter opening/closing signal line 308, and the 'rM source switch 309 is opened and closed to open and close the DCfi source. line 3100) jh An on/off signal for controlling the heart is output via the power supply switching signal line 311. The opening/closing control of the power switch 309 and the movable shutter 17 is such that the power switch 309 closes for a fixed period of time and the electric shutter 17 opens every time the push button 18 of the entrance intercom 3 is operated or the keys on the indoor monitor TV are operated. Set.

Based on the configuration explained in FIGS. 1, 2, and 3, when a visitor presses the pushbutton 18 of the intercom 3 and announces his/her visit, A control signal based on the remote control signal 302 is outputted by the control element 303, the power switch 309 is closed, power is supplied to the camera-integrated VT box 5, and it enters the shooting state, and the electric shutter 17 is opened and the visitor is A light image including the face is transmitted through a lens 6 and a reflecting mirror 7,
Camera integrated mVTI (
.

The image is formed on the virtual image plane No. 5, and the photoelectrically converted video signal is transmitted to a monitor TV in the room via a video signal line 300 and displayed on the visitor. Further, by using the VT function of the camera-integrated VTR 5 with a playback function, the video of the visitor is recorded or tape rewound, and played back on the monitor television, etc., in response to a control signal from the control signal 303. Also, take out the camera-integrated VTR5 from the entrance camera device,
When using the original portable camera-integrated VTR 5, the camera can be easily removed from the camera storage box 1 by opening the door 16, releasing the holding backing 4, and removing the signal connector 10 and power connector 12. Since the body type VTR 5 can be separated, it can be used immediately for recording on a mobile phone.

According to the entrance camera device of the present invention, it is possible to use a portable camera-integrated VTI (,), so it is possible to realize an inexpensive entrance camera device, and also to record the faces and voices of visitors. Since the date and time of a visit is recorded, new functions such as checking for visitors and leaving messages when the user is away can be provided.

[Brief explanation of drawings]

1 and 2 are sectional views of the entrance television camera device according to the present invention, and FIG. 3 is a schematic diagram showing the control circuit section. In the figure, 1 is a camera storage box, 2 is an entrance wall part, 3 is an intercom device, 4 is a holding backing, 5 is a camera-integrated VTR with playback function, 6 is a lens group, 7 is a reflective mirror, 8 is a lens, 9 is the opening, lO is the signal connector, 1
1 is the signal cable, 12 is the power connector, 13 is A
C power line, 14 is the AC adapter, 15 is the control circuit, 16 is the door part, 17 is the electric shutter, 18 is the push button, 19 is the entrance door, 200 is the holding backing for the door part 16, 201 is the box holding part. Backing, /, 30
0 is a video signal line, 301 is an audio signal line, 302 is a remote control signal line, 303 is a control element, 304 is a reproduction start signal line, 305 is a stop signal line, 306 is a rewind signal line, 307 is a fast forward signal line, 308 is a shutter opening/closing signal line, 309 is a power switch, and 310 is a DC
A power supply line 311 is a power supply switching signal line.

Claims (1)

[Claims] This is an entrance TV camera device that projects images captured by a TV camera placed at the entrance onto a monitor TV in the room, and includes an imaging means provided with a TV camera on the wall of the entrance, and an image pickup means that displays images taken by a TV camera placed at the entrance, and the TV camera 1. An answering door entrance television camera device, characterized in that it is provided with a recording means for recording an image signal of a visitor photographed by a VTR or an image signal and an audio signal of an intercom using a VTR.