What Are the Different Types of CCTV Security Products?

Closed Circuit Television (CCTV) An image communication system refers to a television system that transmits video in a specific area and plays it only in fixed circuit equipment. For example, video recorders, monitors in buildings, etc. This type of playback mode is called closed-circuit television. Its signal is only transmitted from the source point to a specific TV set that is in communication with the source point in advance. Widely used in a large number of different types of surveillance work, education, video conferencing, etc.

TV monitoring system is one of the important means of modern management, detection and control. The CCTV surveillance system can show the screen of the monitored and controlled object in real time, image, and reality when people cannot or cannot directly observe it. People use this feature to obtain a lot of information in time, which greatly improves the accuracy of the burglar alarm system And reliability. In addition, the TV monitoring system has become an extremely effective observation tool for people to monitor and control in modern management.

In modern intelligent buildings, a security center must be set up. Multiple CCTV monitors can be set up in the security center to observe the population, main channels and important parts at any time. The closed-circuit television monitoring system is mainly composed of a camera or an imaging device that generates an image, an image transmission device, an image control device, and an image processing display and recording device. In this system, the camera is installed publicly or concealed in a surveillance location, and the captured image and sound (as required) signals are transmitted to the controller through a transmission cable. You can manually or automatically select the images you need to capture, and you can remotely control the variable lens and rotating pan / tilt on the camera to search for surveillance targets and expand the surveillance range. In addition to the single- and multi-screen display on the monitor according to the setting requirements, the image signal can also monitor the live sound and record the required picture in real time. The TV monitoring system has real-time and high sensitivity, which can convert non-visible light information into visible images, which is convenient for concealment and remote control. It can monitor a wide range of space, and can be used in conjunction with the PTZ to expand the monitoring range; real-time alarm linkage, freeze-frame video And alert the characteristics.

Duty personnel in the monitoring center can easily achieve camera monitoring, video recording, macro editing, calling, alarm monitoring, review and other functions through the keyboard. The system can also upload live images on the LAN or WAN in 7FCP / IP mode via network transmission equipment. The monitoring system can be linked with other security systems, including burglar alarms, access control systems, etc. on the integrated platform. Any alarm message can be switched to display the scene image on a specified monitor and trigger alarm recording. ^[1]

Closed circuit television is relative to open circuit television broadcasting.

Broadcasting is divided into wireless broadcasting and

As the number of CCTV installations in public places continues to increase, this has also led to some lawsuits over privacy violations. Some people use CCTV for personal, privacy or business purposes.

CCTV ^[2]

The simplest closed-circuit television ^[3] uses a camera to send the shooting signal to the monitor through the TV cable. It can also send the shooting signal to multiple monitors through a multi-channel distribution amplifier.

The application scope of CCTV is extremely wide, and it is expanding at an unprecedented speed. It can be said that CCTV is inseparable from all parts of the national economy wherever modern technology is used.

The CCTV surveillance system is an important part of the security technology prevention system. It is an advanced and comprehensive defense system. It can directly watch the monitored through remote control cameras and its auxiliary equipment (lens, PTZ, etc.). At the same time, all conditions of the place can also be linked with other security technology defense systems such as burglar alarm systems to make their defense capabilities more powerful. The technical requirements of the CCTV 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 TV signal system, the camera, etc.

Utilizing a closed-circuit television monitoring system can protect personal safety, save time and costs, improve efficiency, and implement real-time command and dispatch, processing and saving information. CCTV surveillance systems have been increasingly used in public security, finance (banks, postal savings, stock exchanges), industrial and mining, traffic management (highways, national highways, urban transportation hubs), and transportation (airports, terminals, railways, highways) Passenger stations), hospitals, commerce (shopping malls, supermarkets, jewelry shops, wholesale markets), schools, residential property management, military, hotels (hotels, restaurants, office buildings), important material warehouses, and security and other fields have become One of the signs of modern management.