KR20170118262A - Apparatus for detecting and warning failure of cctv camera - Google Patents

Abstract

The present invention detects the voltage and current of a power source applied to a CCTV camera and compares it with a steady state voltage and current stored in advance based on the detected voltage, The present invention provides a fault warning device for a CCTV camera, which can determine whether a CCTV camera is malfunctioning, easily, accurately, and quickly. Particularly, according to the present invention, it is possible to visually check whether a CCTV camera is abnormal or not by checking whether a current abnormality or a voltage abnormality occurs, So that it is possible to quickly and accurately inform the observer who is obliged to confirm the abnormality, thereby providing a fault warning device for a CCTV camera that can respond safely and promptly. In addition, since the present invention is configured to detect voltage and current for each of a plurality of CCTV cameras, the present invention can provide a CCTV camera having a multi-channel configuration, which can reliably and accurately judge and cope with an abnormality. There is another purpose in providing a warning device.

Description

TECHNICAL FIELD [0001] The present invention relates to a CCTV camera,

The present invention relates to a fault warning device for a CCTV camera, and more particularly, to a CCTV camera which detects a voltage and a current of a power source applied to the CCTV camera and compares the detected voltage and a steady- The CCTV camera can be easily constructed and used. In addition, if the CCTV camera fails, the current or voltage error is visually displayed through the LED, and at the same time, So it is easy to know whether the CCTV camera is broken or not.

Generally, a closed circuit television (CCTV) is a TV system for transmitting image information to a specific person for a specific purpose, unlike a general TV broadcast providing information to an unspecified number of persons. Therefore, although CCTV is widely used for specific people such as industry, education, medical and traffic control, disaster prevention, and in-house information transmission, CCTV cameras have been recently installed in a crime zone such as an alley or CCTV The camera is installed and operated.

Especially, when CCTV operates all day, such as crime prevention and traffic control, it is difficult to judge whether the CCTV camera is faulty or to make a self diagnosis. Therefore, as in Patent Documents 1 and 2, a technique capable of detecting whether or not a CCTV camera has failed is developed.

(Patent Document 1) Korean Patent Publication No. 10-2010-0114680

(Simple Network Management Protocol) for CCTV cameras. Especially, it is used for any kind of cameras. If the camera does not operate properly, MIB (Management Information Base) and SNMP use various commands To manage the network. This is because if an image is continuously transmitted to the central control room in the first column camera but there is no normal signal required by the user such as a video signal of the first column camera, power source, PTZ (Pan, Tilt, Zoom) And the information is transmitted to the network management server through the TCP / IP to the Ethernet network. Accordingly, the administrator can receive the system status such as the occurrence and recovery of the failure of the CCTV camera through the SMS (Short Message Service).

(Patent Document 2) Korean Patent No. 1566839

A photographing unit including at least one CCTV camera for photographing the surroundings, a warning light for emitting an event, a first speaker for emitting a siren sound, and a first microphone for collecting ambient sound. An emergency button, a second camera, a second speaker, and a second microphone to enable video communication; A control unit connected to the photographing unit and the terminal unit to receive image information and voice information from the photographing unit and the terminal unit and to control operations of the photographing unit and the terminal unit; And a control unit for receiving image information and sound information from the control unit, monitoring the occurrence of an emergency situation in real time, and transmitting a self-diagnosis command to the control unit at predetermined intervals, Wherein when the diagnostic command is transmitted, the first speaker and the second speaker sequentially emit a predetermined sound, and at this time, acoustic information collected through the second microphone and the first microphone, The first and second speakers and the first and second microphones are compared with each other to determine whether the first and second speakers and the first and second microphones are malfunctioning. Can be diagnosed.

However, the apparatus for detecting or diagnosing the failure of such a conventional CCTV camera has the following problems.

(1) Since the CCTV camera itself is configured to detect or diagnose a failure, the configuration of the detection device is complicated and its size is also increased.

(2) This not only requires a large cost for constructing the detection device, but also requires a long time and effort for maintenance after manufacturing the detection device.

(3) Since it is necessary to confirm that the DVR is not recorded due to the failure of the CCTV camera, it is difficult to diagnose the fault of the CCTV camera because it can accurately know the time of the failure of the actual CCTV camera. need.

(4) Especially, when any one of several CCTV cameras fails, it is difficult to find a CCTV camera that has a failure. For example, it takes a long time to check, because the connection cable of the CCTV camera must be disconnected and compared with the screen.

(5) Furthermore, if the CCTV system is left in a state of failure for a long time, it is difficult to confirm whether the CCTV camera is working or not.

Korean Patent Publication No. 10-2010-0114680 (published on October 26, 2010) Korean Registered Patent No. 1566839 (Registered on Nov. 2015)

The present invention takes this point into consideration and detects the voltage and current of the power source applied to the CCTV camera and compares the detected voltage and current with a steady state voltage and current stored in advance to determine whether the CCTV camera is faulty So that it is possible to easily and accurately determine whether the CCTV camera is broken or not, thereby providing a fault warning device for a CCTV camera.

Particularly, according to the present invention, it is possible to visually check whether a CCTV camera is abnormal or not by checking whether a current abnormality or a voltage abnormality occurs, So that it is possible to quickly and accurately inform the observer who is obliged to confirm the abnormality, thereby providing a fault warning device for a CCTV camera that can respond safely and promptly.

In addition, since the present invention is configured to detect voltage and current for each of a plurality of CCTV cameras, the present invention can provide a CCTV camera having a multi-channel configuration, which can reliably and accurately judge and cope with an abnormality. There is another purpose in providing a warning device.

In order to achieve the above object, according to the present invention, there is provided an apparatus for detecting a failure of a CCTV camera (20) connected to a power source (10) through a cable, Detects a voltage to be applied to the CCTV camera (20) through a distributor (30) mounted between the cameras (20), compares it with a previously stored normal voltage to determine whether there is an abnormality, A controller 40 for determining whether there is an abnormality by comparing it with a previously stored normal current, and outputting a signal related thereto if it is determined that the current or voltage is abnormal; And a second LED (52) which is activated when the current is abnormal, and a buzzer (53) which is activated when at least one of the current and the voltage is abnormal. And a warning means (50) including a warning means (50).

Particularly, the first LED 51 and the second LED 52 light up or blink in different colors when normal and abnormal, and when the buzzer 53 is abnormal, a buzzer occurs at 0.5 second intervals .

Finally, the fault warning device of the CCTV camera includes a plurality of CCTV cameras 20 for detecting voltage and current, respectively, and outputting the detected values to the controller 40 for warning .

The fault warning device of the CCTV camera according to the present invention has the following effects.

(1) By detecting the voltage and current applied to the CCTV camera, it is possible to determine whether or not the CCTV camera is malfunctioning because the structure is simple and easy and quick.

(2) Also, when it is judged that there is an abnormality in voltage or current, the LED is turned on or flickered, so that it can be audibly warned through the buzzer in addition to the visual effect. Therefore, the surveillant monitoring the CCTV camera can easily and quickly You can find out if the camera is faulty so you can cope with it.

(3) Since the voltage and current applied to the CCTV camera can be detected for several CCTV cameras, it is convenient to configure multiple channels so that several CCTV cameras can be monitored at one time.

(4) Since the alarm device according to the present invention can be connected to the cable for powering the CCTV camera so that the current measurement and the voltage can be measured, any worker who knows the connection circuit when measuring the voltage and current can easily and quickly The device according to the present invention can be connected and used.

FIG. 1 is a circuit configuration diagram of one channel configured to determine whether or not a CCTV camera has failed according to [Embodiment 1] of the present invention. FIG.
FIG. 2 is a circuit configuration diagram of eight channels configured to determine whether or not a CCTV camera has failed according to [Embodiment 2] of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term in order to describe its own invention in the best way. The present invention should be construed in accordance with the principles of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that there may be water and variations.

The fault warning device of the CCTV camera according to the first embodiment of the present invention includes a controller 40 and warning means 50 operated under the control of the controller 40 as shown in Fig.

Particularly, the controller 40 detects a current and a voltage applied to the CCTV camera 20 from the power source 10 and outputs a warning signal to the CCTV camera 20 So that the structure is simple and easy to manufacture and convenient to use.

In addition, when the voltage and current abnormality occurs, the warning means 50 allows the LEDs to be turned on or blinked so that the LEDs can be visually recognized, and the buzzer 53 is operated to easily detect the abnormality of the CCTV camera So that they can cope immediately.

Hereinafter, this configuration will be described in more detail. In this figure, reference numeral 10 denotes a power source to be applied to a CCTV camera, in which DC is applied in the drawing, 20 denotes a CCTV camera normally used in a closed circuit system, 30 denotes a power source 10, And a distributor (shunt) installed between CCTV cameras.

First, the controller 40 receives the value of the detected voltage applied to the CCTV camera 20. Here, the voltage detection detects the voltage input to the CCTV camera 20, and the figure shows an example of A / D detection of the voltage divided by the "DC Bias" circuit. The detected voltage is compared with the normal voltage stored in the controller 40 in advance. Here, the steady voltage refers to the intensity of the voltage applied from the power source 10 to the CCTV camera 20 when the CCTV camera 20 normally operates. Also, the controller 40 compares the detected value with the normal voltage. If the controller 40 determines that the normal voltage is not normal, the controller 40 alerts the user through the warning means 50.

Here, the warning means 50 includes a first LED 51 for showing a voltage state, a second LED 52 for showing a current state, and a buzzer 53. The first LED 51 may be flashed if the voltage is in a normal state or may be displayed in a predetermined color such as blue, and may be visually warned by turning on or blinking in a different color, for example, red when the voltage is abnormal. The second LED 52 operates in the same manner as the first LED 51 but operates when it is above the current. The buzzer 53 operates at predetermined time intervals, for example, 0.5 second intervals, if at least one of voltage and current is abnormal, so that the buzzer 53 can be audibly warned.

In this way, if the voltage is normal, the controller 40 can recognize the steady state through the first LED 51 and prevent the buzzer 53 from operating. If the voltage is abnormal, the first LED 51 is in a state different from the normal state So that the buzzer 53 is actuated while visually observing the buzzer 53 so that the voltage abnormality state can be audibly detected.

On the other hand, the controller 40 detects a current applied from the power source 10 to the CCTV camera 20. At this time, the current detection detects the voltage difference between both ends of the distributor 30 and then detects the amount of current. In the figure, the detected current is amplified through the "DC Bias" circuit to show an example of A / D detection.

Further, the controller 40 compares the detected value with the normal current stored in advance to determine whether or not an abnormality exists. Here, the steady current is an intensity of the current when the CCTV camera 20 operates normally, and the reference current flowing in the CCTV camera 20 through the "current setting" in FIG. 1 is configured to be set.

The comparison and determination of the intensity of the current detected by the controller 40 and the determination of the steady current and the control process of the warning means 50 according to the result are the same as the processes described above for the voltage, .

As described above, the present invention can measure the current and voltage of a power source applied to a CCTV camera and compare it with a normal value to determine whether or not an abnormality is present. Therefore, It is possible to determine whether or not an abnormality has occurred.

Further, according to the present invention, when an anomaly of a CCTV camera occurs, it can be visually recognized using an LED, and a warning can be given through a buzzer so that it can be detected quickly and quickly.

The fault warning device of the CCTV camera according to [Embodiment 2] of the present invention shows an example in which 8 channels are configured as shown in FIG. The configuration of the failure alarm device according to the present invention composed of these eight channels allows each CCTV camera 20 to detect the voltage and current in the same manner as in [Embodiment 1] So as to judge whether there is an abnormality or not.

[Embodiment 2] shows an example of an 8-channel fault warning device using 8 CCTV cameras. However, it is apparent to those skilled in the art that the number of CCTV cameras can be changed according to the location of the CCTV cameras, You will know.

10: Power supply
20: CCTV camera
30: Shunt
40:
50: Warning means
51: first LED
52: Second LED
53: buzzer

Claims (3)

In an apparatus for detecting a failure of a CCTV camera (20) operating in connection with a power source (10) via a cable,
A voltage to be applied to the CCTV camera 20 is detected through a shunt 30 mounted between the power source 10 and the CCTV camera 20 and then compared with a normal voltage stored in advance to determine whether there is an abnormality A controller 40 for detecting a current flowing through the cable, comparing the current with a previously stored normal current to determine whether there is an abnormality, and outputting a signal related thereto if it is determined that the current or voltage is abnormal; And
A first LED 51 that operates when the output signal of the controller 40 is higher than a voltage, a second LED 52 that operates when the current is abnormal, and a buzzer 53 that operates when at least one of current or voltage is abnormal. And a warning means (50) for warning the warning of the failure of the CCTV camera.
The method according to claim 1,
The first LED 51 and the second LED 52 are turned on or off in different colors in the normal state and the abnormal state,
Wherein the buzzer (53) generates a buzzer sound at intervals of 0.5 seconds when the buzzer (53) is abnormal.
3. The method according to claim 1 or 2,
The fault warning device of the CCTV camera comprises:
Wherein the plurality of CCTV cameras (20) are configured to detect voltages and currents, respectively, and to output the detected values to the controller (40) so that the CCTV cameras (20) can be alerted.

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