CCTV stands for closed-circuit television. So how does a modern CCTV system work? The answer depends on the type of system involved. The systems are best defined by the types of cameras used. There are two common types of cameras in use today: Analog and IP-based cameras. CCTV systems that use analog cameras have been around for years. They are still the most common type of camera installed in the field, experts say. Picture a camera or series of cameras with a dedicated set of wires fed into a recording device and series of monitors.
Here are some other uses of CCTV: CCTVs are perfect for any business establishment, institution, or organisation looking for a way to monitor day-to-day events on their premises. Whether you want to keep an eye on your employee parking lot, monitor your cash register, or survey the exterior premises, CCTV will give you that third eye you need, with recorded evidence in case of the unexpected.
If you run a business, you can take advantage of CCTV cameras to monitor the behaviour of your employees. Some experts suggest that monitoring your staff can help prevent unwanted behaviours such as sexual harassment or theft.
It can also improve productivity and work efficiency. You can use CCTV cameras to improve security. The mere presence of a visible surveillance camera can serve as enough deterrent for burglars, robbers, and other kinds of home invaders. These cameras effectively prevent or minimise crime, especially in areas with high crime rates, whether at home or at an office. You can also use them to keep an eye on your ageing parents or even your troublesome pets.
Waqas Ahmad. Like Reply Report 4 years ago. Cancel Report. Create a new account. Log In. Know what is CCTV? Got another good explanation for CCTV? Don't keep it to yourself! Add it HERE! Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web! Search the web. The software allows a wired connection and then digitalizes video signals, sending them to a wired or wireless IP-based system.
Cameras use different types of image sensors , which convert light into electronic signals. A sensor comprises multiple photodiodes, or pixels, which register the amount of exposed light and converts it to electrons. Analog cameras only use interlaced scanning.
DVRs are generally used with analog cameras. In a DVR system, every camera must be connected directly to the recorder. While DVR systems process footage themselves, NVR systems encode and process data at the camera level, and then stream it to the recorder, which, in turn, is used for storage and remote monitoring.
NVR systems usually use IP cameras. Cons — Can be expensive to buy out of the box, entail a higher learning curve and are at risk from hackers. Read more about the history of CCTV and how analog has evolved here. Some studies have shown that active surveillance in any CCTV system is hampered by ineffective system configurations, poor quality video recordings, faulty or old equipment, inadequate communication between stakeholders, inefficient management policies, ineffective workplace setup e.
Many of these issues can be mitigated by network monitoring software like PRTG. According to Wesley G. Skogan , in the future other digital technologies shall complement CCTV to create a simultaneously more autonomous and proactive surveillance process. These technologies include facial recognition, linked cameras, intelligent hardware, license plate readers, drones, police body cameras, and the IoT.
These technologies will increase passive surveillance, the ability of systems, rather than people, raise alerts. Mass surveillance and a greater presence of security cameras, as we are already seeing in China, could spread to other countries.
Monitoring systems can alert staff when there is a power failure and automatically switch to a backup power supply , constantly check for unusual activity on the network, and be configured for different types of usage, risks, and requirements e. Monitoring these networks professionally is essential to ensure compliance with international privacy and security regulations, to protect personal data, and to efficiently process large amounts of image data.
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