What is CCTV closed circuit TV? CCTV closed circuit television is the use of the camera to transmit signals to the specific specifications of the monitor. Closed circuit television monitoring systems are often used in specific places with security requirements, such as banks, casinos, places of entertainment, airports, military installations, and so on. The increasing application of closed circuit television monitoring system also brings about the public security and privacy protection. In the industrial field, closed circuit television monitoring equipment is often installed in the monitoring room for remote monitoring part of the production activity or production line, or for some of the area is not suitable for manual monitoring. Closed circuit television monitoring system can continuously operate or monitor specific events.
The installation principle of CCTV closed circuit television is composed of a camera installed in the position of the need to prevent optical video image by the sensor and the circuit inside the camera video signal into electrical signal point to point, through cable transmission, through the display equipment of electrical signals to restore the video image.
Perhaps, we know that the CCTV closed circuit television is only used in the security system and retail stores, banks, government facilities, etc., in fact, CCTV closed circuit television almost no limit to the application. For example: monitoring the traffic on the bridge records; baking furnace situation, identify the reasons of the problem; traffic survey system temporary city center; management performance behind the stage; hidden in the bus, the damage monitoring of the people and property records; Zoo Gorilla birth; the use of helicopters to record wild animal program; balloon Altitude Aerial Photography; factory production management etc.. CCTV closed circuit television is very wide, as long as you want to, you can use.
The simplest CCTV closed circuit television is to use a video camera, the signal is sent to the monitor through the television cable, can also take the signal after a multi-channel distribution amplifier to use on multiple monitors. CCTV closed circuit television is widely used, and is growing at an unprecedented speed, it can be said in various sectors of the national economy, where the use of modern technology can not be separated from the local tv. CCTV closed-circuit television monitoring system is the security system is an important part of the integrated system is an advanced and strong prevention ability, it can all through remote cameras and auxiliary equipment directly watch are monitoring sites, but also with anti-theft alarm system and other security system linkage operation the ability to guard against more powerful. The technical requirements of the closed circuit television monitoring system are mainly: the definition of the camera, the transmission bandwidth of the system, the signal to noise ratio of the video signal, the standard of the television signal, the camera, etc.. The use of closed circuit television monitoring system, can protect the personal safety, save time and cost, improve efficiency, achieve real-time command and scheduling, processing and storage of information.
CCTV closed-circuit television has brought a lot of convenience to our life, but also to protect our personal safety in a certain extent, but also because of the excessive use of CCTV closed-circuit television, makes a lot of people on the government's wanton use of closed-circuit television violates people's privacy expressed dissatisfaction, so CCTV CCTV should be widely used, but should not flood.