KR0133158B1 - Cctv camera - Google Patents

Abstract

The monitoring camera is composed of an optical sensor(41) detecting an amount of light to transmit to an attenuation adjusting device(50) when light beam of high power is emitted during operation; the attenuation adjusting device adjusting voltage is applied to a speed glass(40) according to a signal value transmitted; a magnetic material inside the speed glass rotated according to this voltage change to vary a transmission rate of the light beam, whereby the light beam is received in a camera(10) attenuated, making an exact perception possible; a solar(42) converting the light beam into the energy and transmitting to a storage battery(60), storing the energy. Therefore, exact working condition is perceived.

Description

Surveillance camera

1 is a block diagram showing a surveillance camera used in a high power light emission operation such as conventional welding and cutting.

2 is a block diagram of a surveillance camera used in a high power light emission operation according to the present invention.

3 is a structural diagram showing a state in which the blocking glass is mounted on the monitoring camera of the present invention.

* Explanation of symbols for main parts of the drawings

10; Camera 40: Speedglass

41: light sensor 42: solar

50: attenuation regulator 60: storage battery

The present invention relates to a camera for monitoring a work situation in a high-output light emitting operation, in particular a surveillance camera that can accurately recognize the work situation by blocking the high-power light using a special blocking glass that can adjust the amount of light transmission It is about.

Generally, surveillance cameras are used to monitor any particular purpose or task. Such a surveillance camera is connected to a closed circuit television (CCTV) or the like so that the user can adjust while confirming the work. Of course, the workplace checks the working status with a surveillance camera and controls the work process. In particular, such a monitoring camera is also used for high power light emitting work such as welding and cutting, and at this time, it is difficult for the camera to recognize the working state due to the high output light beam. This means that a means for blocking or attenuating the light beam on the front side of the surveillance camera is used. An example of this is shown in FIG.

1 is a block diagram of a surveillance camera used in the existing welding and cutting operations. As shown, the blocking glass 20 is disposed on the front portion of the camera 10 to block the high output light beam generated during welding or cutting. The blocking glass 20 is configured to be rotatable by the rotating device 21. The rotary device 21 is connected to the controller 30, the rotation signal of the rotary device 21 is controlled by the controller (30). In particular, the high power light is emitted during the welding and cutting operations to rotate the blocking glass 20 with the rotating device 21 to attenuate the high power light received by the camera 10. On the other hand, the welding and cutting equipment may perform markings other than welding and cutting, that is, marking lines and characters, etc. In this case, the barrier glass 20 should be removed from the camera 10.

However, such a device has a problem in that the operation of the device is cumbersome because it controls the rotating device with a controller during the high power light emission operation such as welding and cutting, thereby performing the operation of placing the blocking glass in the camera or removing it from the camera. In addition, since there is a need for a power source for driving such a device, there was also a problem of high energy consumption. In particular, since the appropriate amount of light cannot be adjusted to be received by the camera according to the fluctuation of the amount of light, there was also a problem that accurate recognition is impossible.

Accordingly, an object of the present invention is to provide a surveillance camera that detects the amount of light received by the camera and automatically attenuates it to an appropriate amount of light in the camera to enable normal recognition.

Surveillance camera according to the present invention for achieving the above object is provided with a detection means for detecting the intensity of the light beam and output to the attenuation controller. It receives a signal sensed by the sensing means is converted into a corresponding voltage and provided with an attenuation controller to apply to the light attenuation member. It is provided on the front portion of the camera, and provided with a light attenuation member that transmittance is converted in accordance with the voltage of the attenuation regulator.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of a surveillance camera used for a high power light emission operation according to the present invention. As shown, the apparatus includes a speed glass 40, which is a tube damping member attached to the camera 10, an optical sensor 41 attached to an upper portion of the speed glass 40, and means for detecting light intensity, and It is comprised by the damping regulator 50 which receives the signal from this optical sensor 41, and adjusts the transmittance | permeability of the speed glass 40. FIG. In addition, a solar 42 is mounted on the upper portion of the speed glass 40 to supply power to the attenuation controller 50, the optical sensor 41, and the speed glass 40. The solar 42 converts high-power light rays generated during welding and cutting operations into energy, and transmits the energy to the storage battery 60 mounted on the camera 10, and the storage battery 60 stores energy generated by the solar 42. Thereby providing power to the optical sensor 41 and the attenuation controller 50 and the speed glass 40. In particular, the speed glass 40 maintains a transparent state when a voltage is not applied, and has a high transmittance, but when a current is applied to both ends of the glass, the magnetic material having a glass interior roof rotates to reduce the transmittance of light. Of course, the transmittance of the speed glass 40 is adjusted by changing the voltage of the current flowing through the speed glass 40. At this time, the voltage change of the current is controlled by the attenuation controller 50 and is adjusted based on the signal detected by the optical sensor 41.

3 shows a state in which the light attenuating member is attached to the monitoring camera in the present invention. As shown, the speed glass 40 is attached to the lens unit of the camera 10 at a predetermined interval. Of course, since the speed glass 40 can adjust the transmittance as described above, it is not necessary to attach or detach from the camera 10 in accordance with the change in the amount of light. The operation of the present invention will now be described in detail with reference to the above-mentioned drawings.

When a high output light beam is emitted during operation, the light sensor 41 detects the amount of light and sends it to the attenuation controller 50. The attenuation controller 50 adjusts the voltage applied to the speed glass 40 according to the transmitted signal value. As the voltage changes, the magnetic material inside the speed glass 40 rotates to change the light transmittance. As a result, the light rays received by the camera 10 are attenuated to enable accurate recognition. At this time, if the voltage of the current applied to the speed glass 40 is 0 [V], the speed glass 40 becomes transparent. In particular, during operation, the solar 42 converts light rays into energy and transmits and stores them in the storage battery 60. The stored power is transmitted to the speed glass 40, the solar 41 and the attenuation controller 50 to be used as the operating power.

As described above, the monitoring camera according to the present invention has the advantage of accurately monitoring the working situation by adjusting the transmittance of the blocking glass according to the amount of light. In addition, since the barrier glass performs its own attenuation function, it is easy to monitor the work situation regardless of the change in the amount of light according to the work. In addition, since the driving device for controlling the blocking glass and the attenuation amount by changing the light beam generated during the operation has the effect of saving energy.

Claims (2)

A camera for monitoring a work situation in which a high output light ray is emitted, the camera comprising: sensing means for detecting the intensity of the light ray and outputting a signal detected by an attenuation controller; An attenuation controller which receives the signal sensed by the sensing means and converts the signal into a corresponding voltage to apply to the light attenuation member; An optical attenuation member installed at the front of the camera and having a transmissivity changed in accordance with a voltage applied by the attenuation controller; A solar for converting the light into energy; And a battery for accumulating energy generated from the solar and using the battery as a power source of the sensing means, the damping regulator, and the light attenuating member. The monitoring camera according to claim 1, wherein the light attenuation member is a speed glass.