On this page, We are going to learn about the full form of CCTV and the meaning of CCTV, As well as the meaning, definition, abbreviation, and acronym for CCTV in different categories. So you should read this post till the end.
The Full Form of CCTV: Closed Circuit Television
CCTV stands for Closed Circuit Television. CCTV It is sometimes referred to as video surveillance. Closed Circuit Television (CCTV) is a type of safety and security device that is used to monitor the house, office, or factory. These are some main components of CCTV
- Security Cameras and Lenses like- Analog or Digital Camera
- Wireless Transmission Cables like- RJ45 or RJ59 Cables
- Video recorder units such as DVR (Digital Video Recorder) or NVR (Network Video Recorder)
- Storage units like- hard disks, pen-drive
- A display unit like – Monitor, Smartphone
Invention of CCTV
- CCTV was invented in the year 1942 by the German engineer “Walter Bruch”.
- The CCTV camera had come into the world in 1942. But it started being used in 1960 AD.
- The first camera was mounted on a rocket named “V2” to watch the launch of the rocket.
- In 1992 Walter Bruch built the world’s first CCTV camera and it was installed in “Olean, New York, USA” for security purposes.
- The banking industry was the first firm that uses these CCTV cameras.
- In 1996, Axis Communications manufactured the world’s first IP camera.
How do CCTV cameras work?
In CCTV (Closed Circuit Television) systems, there are four main components. A complete CCTV camera can be prepared using these four components.
Camera- In CCTV, the camera captures the video or picture and transfers the video or picture to the monitor with the help of wireless transmission.
Monitor – With the help of this video, audio or picture is broadcast (broadcast). Because by converting the monitor’s digital data into visual data, we see CCTV footage.
Videotape and recorder – With the help of videotape and recorder, the data (video, audio, or picture) transmitted by the CCTV key is saved for future use.
Types of CCTV camera
Dome Camera: Dome cameras are specially designed for the purpose of monitoring large areas. This camera looks like a half-cut ball, so its look is also very good. Due to this feature, this camera can be easily installed on the roofs of houses, ceilings, or in large malls or shops, or offices.
Bullet camera: This is a type of outdoor camera. An outdoor camera is that which is used to monitor the area outside the house. Its shape is elongated like a thick cylinder.
That’s why it is called a bullet camera. Often it is used outside an office, at the toll gate, at the intersection, or in the parking area of the building.
Day-night CCTV camera: It is very popular to use this type of camera. It is equipped with an “infrared cut filter” that not only makes excellent daytime recordings but also makes black and white recordings at night or in low light. This camera offers excellent image and video quality.
PTZ Camera: this type of camera is used for surveillance. PTZ camera stands for Pan, Tilt, and Zoom camera. It is only designed for live surveillance. In addition to being able to rotate in any direction, it can also be flipped across. Also, it can be rotated 360 degrees.
By zooming in on a particular area or object, you are able to see it more clearly. It is commonly used in warehouses or defense installations for road grazing.
Internet IP Camera (IP CCTV camera): IP Cameras are also known as Internet Protocol Cameras. It is a webcam camera that by connecting its IP to the smartphone through the Internet, the user can monitor his shop house warehouse.
Its broadcasting can be seen living in any corner of the world. For this, you have to buy an IP from the IP service provider and configure that IP with the software of the camera. And after that, you can watch the broadcast.
Do CCTV cameras work without electricity?
Currently, CCTV cameras are electrical devices, so they cannot work without electricity. Therefore, electricity is needed for its operation.
In most cases, CCTV systems can run off UPS systems when there is no power. For this, the camera is connected to an inverter or UPS so that the camera continues to work even in the absence of electricity.
Currently, WiFi wireless cameras are available on the market as well. It is known as MicroUPS – RegalDream Technologies. These technologies can provide power to CCTV cameras for hours. And some cameras also have inbuilt battery backup which is a bit expensive.
CCTV camera buying tips
- Before choosing a camera, decide whether you will be monitoring indoors or outdoors. Choose the area where CCTV will be installed.
- Make sure the video and audio are crystal clear while you are buying it. There are times when the quality of videos and images isn’t great and we have to deal with that.
- (CMOS) and (CCD) chips are used in CCTV cameras, and CMOS chips are usually used in cheap cameras.
- Make sure that you only use IP CCTV cameras. Using its IP, you can stream live broadcasts from any corner of the world using remote locations.
- It is recommended to purchase only day and night CCTV cameras if you are installing the camera in an area with low light or darkness.
- You should choose a camera with a higher resolution if you want good picture quality. Even in low light, an infrared CCTV camera records good images and videos
- If you need help choosing the right camera for your home or business, you should consult a security expert or camera company. You get the best advice from him because he understands what you need.