KR19990019881U - Surveillance Camera System - Google Patents

Abstract

The present invention relates to a camera system for surveillance, and includes a camera unit 10 for capturing a subject in a public place such as a bank and outputting it as an image signal, and outputting the output image signal provided from the camera unit 10 to a video tape. A deck portion 30 for recording and a terminal detector 32 formed at a predetermined position in the deck portion 30 for detecting the transparent portion of the video tape being recorded by the deck portion 30 using a light emitting element or the like. When the end of the video tape is detected by the end detection unit 32, the buzzer sound is automatically sent.

In other words, the present invention notifies the user of the video tape replacement time of the surveillance camera system, it is effective to operate a more complete surveillance system.

Description

Surveillance Camera System

The present invention relates to a surveillance camera system (also called a closed circuit television system), and more particularly, to a surveillance camera system that detects an end of a video tape and informs a user of a replacement time of a video tape. It is about.

Surveillance camera system is an unmanned recording device, which is installed in a place that requires monitoring, for example, banks, etc. to record the movement of the subject of the place to be monitored unattended.

In addition, the surveillance camera system controls the servo to record one field every 1/30 seconds or one second without recording a field every 1/60 second, so that a general video tape (T-120) can be recorded. It is an unmanned system that can record a long time of about 100 hours.

On the other hand, when the recordable time of the inserted video tape has elapsed, the surveillance camera system automatically stops the current recording drive in the same way as the general VRC. At this time, the system state is a state in which video signal recording is not performed on the videotape, and only video signal output to the monitor is possible.

In this case, the administrator must check the driving state of the surveillance camera system, that is, the recording stop state, draw out the recorded video tape, and insert another video tape, that is, a so-called unrecorded tape.

However, since the surveillance camera system has been recording for a long time as described above, there has been a case where the surveillance recording is not successfully performed due to the administrator's misunderstanding or idleness. That is, even if recording is not performed, the subject is displayed on the monitor, so the administrator often thinks that the current system is driving recording.

Therefore, the present invention has been devised in view of this point, and an object of the present invention is to provide a surveillance camera system that detects the end of a video tape and generates a buzzer sound according to the end detection to notify the user of the time of replacing the video tape. To provide.

That is, the present invention, the camera unit for photographing a predetermined subject and outputting the video signal; A signal processing unit for processing the video signal from the camera unit into a recordable signal; A deck unit which drives upon application of a recording control signal to record a video signal processed by the signal processing unit on a video tape; An end detection unit formed at a predetermined position of the deck unit and detecting an end of the video tape; A control unit which drives the deck unit to record, stops the deck unit in response to the end detection signal detected by the end detection unit, and outputs a buzzer control signal; It provides a surveillance camera system comprising a speaker for transmitting a predetermined buzzer sound in response to a buzzer sound control signal from the control unit.

1 is a block diagram of a surveillance camera system according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: camera unit 20: signal processing unit

30: deck portion 32: end detection section

40: microcomputer 50: speaker

60: monitor

The above object and various advantages of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a surveillance camera system according to the present invention, the camera unit 10, the signal processing unit 20, the deck unit 30, the end sensor 32, the microcomputer 40 , A speaker 40 and a monitor 50.

As shown, the camera unit 10 is mounted at a specific place to be monitored, for example, a place where an automatic teller's machine (ATM) is installed. Convert it to a signal and output it.

The signal processor 20 processes and outputs an image signal from the camera unit 10 into a recordable and displayable signal. That is, the image output signal is provided to the monitor 60 via the deck unit 30. The image signal provided from the camera unit 10 is always provided to the monitor 60, and the recording control signal of the microcomputer 40 to be described later. Is recorded on the video tape by the deck unit 30 accordingly.

The deck unit 30 includes a capstan motor and a head drum, which are in charge of driving the video tape, and a video and audio head (not shown) for recording and reading video and audio signals, respectively, and controls the microcomputer 40. The video signal of the signal processing unit 20 is recorded on the video tape, or the signal of the video tape is read and applied to a reproduction processing system (not shown).

On the other hand, the terminal detecting section 32 according to the present embodiment is formed at a predetermined position in the deck section 30, and detects the transparent portion of the inserted video tape by using optical means, for example, a light emitting element. That is, the transparent portion of the video tape is usually positioned at a predetermined section at its end, and the end of the video tape is detected by transmitting an optical signal by a light emitting element, for example, a light emitting diode (LED).

This termination detection signal is provided to the microcomputer 40.

That is, the microcomputer 40 stops the deck unit 30 in response to the termination detection signal detected by the termination detection unit 32, and outputs a buzzer control signal to the speaker 50.

In response to the buzzer control signal, the speaker 50 transmits a predetermined buzzer sound to the outside.

Such a buzzer sound may be used as a message to insert another video tape because the recording of the video tape inserted into the deck unit 30 is completed. If only the buzzer sound occurs even if the administrator neglects the inspection of the surveillance camera system, Rapid replacement of the tape will be possible.

In addition, in the present invention, the video tape replacement discrimination means of the surveillance camera system is exemplified as the end detection unit 32. However, the present invention is not limited thereto, but other means, for example, a residual amount detection means using a reel sensor, is also applied. This is possible and this fact will be readily apparent to those of ordinary skill in the art.

As described above, the present invention by notifying the user of the video tape replacement time of the surveillance camera system, there is an effect that can operate a more complete surveillance system.

Claims (1)

A camera unit 10 which picks up a predetermined subject and outputs it as an image signal; A signal processing unit 20 for processing the video signal from the camera unit into a recordable signal; A deck unit 30 which drives upon application of a recording control signal to record a video signal processed by the signal processing unit 20 on a video tape; An end detection unit (32) formed at a predetermined position of the deck unit (30) and detecting an end of the video tape; A control unit (40) for driving the deck unit (30) for recording, stopping the deck unit (30) in response to an end detection signal detected from the end detection unit (32), and outputting a buzzer control signal; And a speaker (50) which transmits a predetermined buzzer sound in response to the buzzer sound control signal from the controller (40).