CCTV Full Form
What is the full form of CCTV?
The full form of CCTV is Closed Circuit Television. It is also known as Video Surveillance. It includes various components like video cameras, display screens and recording equipment etc. It has a direct connection with them. These are used to track a specific area that is easy to identify and requires continuous monitoring.
CCTV can observe a place for the longest time. It can also observe the area where someone rarely observes things. It monitors and records the events, which makes the safe place and crime-free. CCTV helps to control traffic. It is also used to detect overcrowding and track damage.
In CCTV, wireless or wired networking is used. Video or audio can be transmitted through it. Night vision skills are present in advanced CCTV cameras to capture pictures at night.
Small black and white monitors were used in Older CCTV systems. They were having less resolution and an absence of functionality. Nowadays, modern CCTV screens are having colour displays and high-resolution showcases. They also have the ability to zoom the picture.
Components of CCTV
Digital security cameras.
Cables and wires
The PVR or NVR video recorder
Storage devices like hard disk
Display devices that include screen
Applications of CCTV
A closed-circuit TV camera’s main purpose is to alert and stop burglars, criminals, etc.
Many people use closed-circuit television cameras to keep eyes on the activity of seniors, kids, or pets at home.
The CCTV cameras enhance the performance of the business. It also helps to increase the productivity as well.
Benefits of CCTV
CCTV systems are a great threat to thieves. Once a criminal realizes that he is under CCTV surveillance, he will prefer to go somewhere else.
It reduces the chances of crime.
It enhances remote monitoring.
It results in an increase of business, efficiency and also improves profitability.
It can be used for home security.
It is a threat to shoplifters.
CCTV footage helps the police in assisting and investigating the crimes.
Places Where CCTV is Used
Banks and Shops
multiplexes
Casinos and Clubs
Highways
Buildings and Apartments
Corporate Houses
Government Buildings
Airports
Railway Stations
Industrial plants
Street roads
Schools
Colleges, etc.
CCTV Work and Operation
Modern CCTV networks convert analogue signals to digital signals. They use hardware and software to do so. Analogue systems are very different from digital systems. Retrofitting is the name of this process. A camera captures images through the lens by using image sensors.
Recorders Make use of analytical software and other intelligent technologies. They are used to scan the information and alert users or other systems. Videos that are streamed are captured, archived, and analyzed with the help of video management software (VMS). The software uses machine learning (ML) techniques which include features like motion detection, facial recognition, people counting, etc. It helps to learn on its own.
Key Terms Used in CCTV
1. Encoders: It is used for Video. Video encoders help to convert analogue CCTV systems to some types of network systems which provides customers to access more affordable hardware and cutting-edge features.
2. Imaging technology: Cameras have a large variety of image sensors that convert light into electrical impulses. A sensor includes several photodiodes, which are known as pixels. These photodiodes convert the light's exposure into an electron measurement. The two most common types are
CCD (charged coupled device)
CMOS (complementary metal oxide semiconductor)
3. CCD: These are expensive and consume more electricity. CCD scanners are the best option in low-light situations. It is due to their high light sensitivity. The signal is analogue. An analogue-to-digital converter converts the pixel values into numeric values before the broadcast of the signal.
4. Examining Pictures: Cameras provide good resolution with more than 400 lines. By refreshing these messages at regular intervals, less bandwidth is used.
5. Progressive: In this method, the image is scanned and a monitor shows each line in order.
6. Recorders: DVRs are used with analogue cameras. Each camera has a direct connection to the recorder in the DVR system.
7. NVR systems: NVR systems encode data at the camera level. It does so before streaming it for storage and remote monitoring. They use IP cameras.
Other Related Full Forms -
Frequently Asked Questions (FAQs)
Closed Circuit Television is the full form of CCTV. It is also known as Video Surveillance. It includes various components like video cameras, display screens and recording equipment etc. It has a direct connection with them. These are used to track a specific area that is easy to identify and requires continuous monitoring. Small black and white monitors were used in Older CCTV systems. They were having less resolution and an absence of functionality. Nowadays, modern CCTV screens are having colour displays and high-resolution showcases. They also have the ability to zoom on a picture.
The components of CCTV include digital security cameras, cables and wires, PVR or NVR video recorders, storage devices like hard disks and display devices that include screens.
The uses of CCTV are-
A closed-circuit TV camera’s main purpose is to alert and stop burglars, criminals, etc.
Many people use closed-circuit television cameras to keep eye on the activity of seniors, kids, or pets at home.
The CCTV cameras enhance the performance of the business. It also helps to increase productivity as well.
CCTV is used in banks and shops, multiplexes, casinos and clubs, highways, buildings and apartments, corporate houses, government buildings, airports, railway stations, industrial plants, street roads, schools, colleges, etc.
Yes, CCTV is very helpful. It reduces the number of crimes as whenever a thief or a criminal sees CCTV, he gets scared and goes away. CCTV also helps in police investigations.