JPS62183289A - Monitor device - Google Patents

Abstract

PURPOSE:To monitor the internal of a store while enjoying television broadcasting by providing two inputs for a video camera for monitoring/recording any illegal behavior and others and for television broadcasting reception antenna, and composing a video signal so that a picture generated from the input from the camera is displayed in a part of the screen of a home television set. CONSTITUTION:In usual use, a television program received through the antenna 6 can be enjoyed on the home television set 10 by selecting a channel by means of a tuner 7. At the time when a customer opens the door of the entrance, an alarm switch 2 closes, and a video signal from the video camera is inputted to a detection circuit 4 and a video dividing circuit 5. In this case, since an output signal from the circuit 4 turns the circuit 5 to ON, the two video signals from the tuner 7 and the camera 1 are mixed to constitute two videos on one screen of the television set 10. As a result, by viewing the home television 10, the presence/absence of customers are monitored for purpose of security.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a monitoring device useful for preventive monitoring of private stores or home security of private residences.

(Conventional Technique VIF) Conventionally, there is a time-lapse video for long-term monitoring recording in which a video tape is run at a very low speed or intermittently to field sample a video signal (frame-by-frame recording).

(Problem to be solved by the invention) However, this method requires multiple video cameras, a sequential switcher that automatically switches between them, and a surveillance monitor TV.
This equipment is used exclusively for in-store monitoring of financial institutions by connecting the system with other systems, and the equipment cost is high.

Therefore, it is unsuitable for use in private stores such as precious metals stores, liquor stores, or private residences for home security purposes. Additionally, this system has drawbacks such as the lack of a tuner circuit, the inability to record and playback television broadcasts, and the need for a separate video tape recorder in the above-mentioned private stores and residences.

The present invention aims to eliminate these drawbacks. That is, the present invention provides two video inputs, a video camera and an antenna, and allows these composite videos to be viewed, recorded, and played back on a home television.
It is an object of the present invention to provide a monitoring device that can be used for two purposes: monitoring crime prevention, recording and reproducing video thereof, and monitoring, recording and reproducing normal television broadcasting.

(Means for solving the problem) The present invention provides two inputs: a video camera for monitoring and recording purposes such as crime prevention, and a TV broadcast receiving antenna, and the output of the former is controlled by the 0N10FF state of the alarm switch.
This allows the detection circuit and video division circuit to work, and
The latter is input to the video dividing circuit through a tuner circuit, and normally only this is received by a home television through a video circuit and an RF converter, and when the alarm switch is on, this is detected. A video dividing circuit is activated by the output of the detection circuit, and the video signals are composited so that the screen of the video camera is displayed on a portion of the screen of the home television.

(Function) As described in ``-'', the present invention is capable of receiving, recording and reproducing normal television broadcasting, and can also monitor video for crime prevention and other safety management by turning on and turning off an alarm switch. By using a video division circuit that is activated when the video is turned off, it is possible to interrupt part of the normal TV broadcast screen for viewing, recording, and playback.

(Example) Embodiments of the present invention will be described with reference to the drawings.

1 is a video camera for crime prevention monitoring, which is installed inside a private store such as a precious metal store or a liquor store. This may be installed at the cash register or near the entrance/exit as necessary.

Reference numeral 2 indicates an alarm switch, which is an electric switch linked to the entrance/exit door of the store. This can be an infrared sensor that detects when customers come in and out, a sensor that captures human body temperature, or an intercom switch installed at the entrance/exit. A video signal from the camera 1 is sent to a circuit 3 of a video tape recorder, which will be described later.

This transmission is distributed so that one side goes into the detection circuit 4 and the other side goes into the video division circuit 5 at the same time.

The detection circuit 4 turns on and off the video dividing circuit 5, and the video dividing circuit 5 mixes two video input signals to form two videos on one screen of the TV monitor. . Only one image is displayed on the 1/4 screen of the TV monitor.

Reference numeral 6 denotes an antenna for receiving television broadcasting installed outdoors, which is input to a tuner 7 so that a desired channel of television broadcasting can be selected.

The selected signal is input to the video dividing circuit 5.

8 is a video circuit, which includes recording and playback circuits, and, although not shown in the figure, a helical scan type tape running mechanism that wraps the video tape around a cylinder head, and a servo that drives this.・It is electrically linked to a system control circuit, etc.

Reference numeral 9 denotes an RF converter, which converts the output signal from the video circuit 8 into one or two channel signals in the VHF band.

Reference numeral 10 denotes a home television, which is used by setting an empty channel out of one or two channels. In this case, when selecting a TV broadcast channel,
This can be done by operating the tuner 7 of the video tape recorder.

The operation of this embodiment configured as above will be described next.

Normally, television broadcasts received by the antenna 6 can be viewed on the home television 10 by selecting a channel using the tuner 7. In this case, since the video dividing circuit 5 does not operate at all, only the video of the selected channel will be displayed on the screen of the home television 10.

If the customer opens the entrance/exit door, the alarm switch 2 is closed and the video signal from the video camera is input to the detection circuit 4 and the video division circuit 5.

In this case, the output signal from the detection circuit 4 mixes the two video signals from the tuner 7 and the video camera 1 in order to turn on the video division circuit 5, and displays the two video signals on one screen of the home television 10. comes to consist of two images. That is, the TV broadcast from the tuner 7 is displayed on both sides A of the home television 10, and the state of the store monitoring by the video camera 1 is displayed on the screen B.

Therefore, by watching the home television 10,
Customer access can be monitored for security.

Furthermore, when the video circuit 8 is put into a recording state, television broadcasts can be recorded. In this case, the alarm 11 switch 2
When it is ONL, 174 on the screen will be able to record security monitoring at the same time. In particular, when it is desired to perform dedicated crime prevention monitoring recording for a long period of time, a mode may be set in which the video tape is run intermittently and the video signal is recorded frame by frame. Then, during playback, customers come and go at the same time,
The time can be confirmed by checking the time of the TV broadcast program, so there is no problem.

If you only want to record normal television broadcasts, you can do so without any problems by turning off the alarm switch 2 or by not connecting the video input terminal of the video camera 1.

Further, when the video circuit 8 is brought into the playback state, the video software can be played normally.

(Effects of the Invention) As is clear from the above embodiments, the present invention provides two input terminals, a video camera and an antenna, and divides the images so that a composite image can be viewed on a home television. It is something.

Therefore, the cost of the crime prevention monitoring system is low, and the store can be monitored while watching television broadcasts, which is convenient in practice.

Furthermore, since crime prevention monitoring recording can be performed at the same time as recording television broadcasts, the date and time can be determined and confirmed from the program time, improving the monitoring function.

On the other hand, it was also possible to record TV broadcasts and play video soft tapes, making it possible to utilize general video tape recorders.
In fact, it is most suitable for private shops or private residences.

[Brief explanation of drawings]

The drawing is a block diagram of one embodiment of the present invention. 1... Video camera, 2... Alarm switch, 4... Detection circuit, 5... Video division circuit, 6... Antenna, 7... Tuner, 8
... video circuit, 9 ... RF converter,
10...home television.

Claims (1)

[Claims] Two inputs are provided: a video camera for surveillance and a TV broadcast receiving antenna, and the former can be used to turn on/off the alarm switch.
Depending on the state, the output is controlled, thereby operating the detection circuit and video splitting circuit, and the latter is input to the video splitting circuit through the tuner circuit, and normally only the latter video is sent to the video circuit and RF converter for home use. When the alarm switch is set to be received by the TV and the alarm switch is on, the detection circuit that detects this activates the video splitting circuit so that the screen of the video camera is included in a part of the screen for receiving the TV broadcast. A monitoring device characterized by combining video signals.