Description: CCTV means the closed circuit television. All the circuits are nearby, all the components are connected to each other directory. This system can be rich in the micro wave, infrared beamus etc.
For the most important use of CCTV, the shop, banks, use security in government offices.
1. Find the solution to the problem by recording it inside the cooking furnace.
2. Monitoring traffic on the bridge.
3. Use it to attract meditation to football or cricket stadiums.
4.The bus has hidden CCTV to prevent accidental accidents.
5.The zoo uses CCTV to record the birth of a gorilla.
6.CCTV is used for aerial photography from the hot air ballons.
7.CCTV is used to control production in the factory.
Camera & Lens : The picture is transmitted to the control position by the camera. Not all lenses have focus and iris adjustment. Also very wide angle lenses do not have focus ring.
Focus adjustment : When recording an object, the lens creates an image of the object in the camera. Focusing is to adjust the lens sharpness in the camera to adjust the image properly.
Iris adjustment : Controlling the light passing through the lens is called iris adjustment, which sets the iris / aperture low when the object is illuminated. On the contrary, the aperture sets the maximum if there is less light.
Monitor : The picture created by the camera needs to be drawn to the control position. T V Like receiver CCTV Has a monitor but does not have tuning circuits. The monitor uses the camera to capture the picture.
CCTV System: Simple CCTV In the system the camera is connected to a co-axial cable monitor. This is called the Line Power Camera System.
Over time CCTV Further improvements were made to the system:
1. Signal is given to the same monitor through different cameras. Also this signal is automatically set in sequence or given a selector to the camera.
2.CCTV The system connects the camera with the mic to the monitor with the speaker. 3
3. Men's power CCTV System encountered.
4. Video recording with CCTV System encountered.
5. Movable camera controllable from the monitor's location CCTV System encountered.
Application of CCTV:
1. Trains arriving and departing at the train station are made free and they are available. TV Is shown on the details. Trains detail the traffic control room of the station's information that the detainees write on the board, shoot it with a video camera, or write information on a video signal using character generator equipment. The equipment also provides video output for distribution as well as audio output for microphone which can be used for different locations at the station.
2. When there are many customers coming to a store, there are not enough workers to monitor them. When the owner TV camera fixes and monitors all customers' movements while sitting at the counter, no audio is needed, but only the cameras are attached to the central monitor room. For this, CCTV cameras are available, they are very small in size and can be fixed in a way that the customer will not notice.
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