How does CCTV work?

Charlotte Sedgwick

June 24, 2022

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The first documented CCTV system was designed by engineer Walter Bruch, used in 1942 Germany to monitor V-2 Rockets.

Fast Forward to today: 5.2 million CCTV cameras were in operation across the UK in 2020, the equivalent of one camera for every 13 people, according to IFSEC Global.

Despite this prevalence, many people are unfamiliar with how it works. Our team share their expertise:

What is CCTV?

Closed-Circuit Television is a video system in which cameras are strategically placed to observe an area and transmit footage to a private monitor/s, accessible in a control room or remotely.

These discrete camera monitoring systems have a powerful deterrence factor, often associated with crime detection, but their utility extends further; CCTV is used in traffic and crowd control, footfall analysis, heat mapping, and can be integrated with other security systems such as intruder or fire alarms. We delve deeper into integrating CCTV with other security systems here.

Analogue or IP-based CCTV cameras?

Different CCTV systems suit different situations. These systems are distinguished by the types of camera used; most commonly analogue or IP-based. Analogue systems are connected to a recording device via dedicated wires, whereas IP cameras use an IP (Internet Protocol) network to record video data onto a server.

Benefits of an IP system include better quality recorded images, the ability to use video analytics, and remote access to monitoring. Find out how WLS can upgrade your system from analogue to IP in a way that suits you, your property and your budget.

Reliable installation from WLS

WLS is NSI Gold approved with over 25 years of experience installing CCTV camera systems. We only specify equipment from proven suppliers such as Genetec, Axis, Hikvision, Avigilon and Honeywell. We cover projects of any size and have undertaken many high profile installations in London including CCTV Systems at Channel 4, The National Archives in Kew and the London 2012 Olympic Stadium.

Repair and Maintenance Service

WLS also operates a CCTV Repair and Maintenance service. As part of the installation process we’ll draw up a comprehensive maintenance plan for your system, which you can take up upon completion as an optional extra. We can also inspect and service any existing systems so you can be sure they’re properly installed and maintained to the highest standards.

Find out more or use our enquiry form for a free quote.

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