CCTV: everything you need to know

January 21, 2020

Security issues are on the agenda. In fact, ensuring the safety of people, goods and spaces is a growing concern and the solutions available on the market are increasingly numerous and sophisticated. One of the alternatives are CCTV systems.

CCTV: what is it

CCTV stands for Closed-Circuit Television and corresponds to the most frequently used video surveillance system.

A CCTV system consists basically of a set of cameras placed in strategic locations, which capture and transmit images to a video management system that allows the recording and viewing of these images.

As a closed system, only a restricted number of people have access to the images, namely system owners, security guards and police authorities (in case of crime).

The main objective of CCTV is to monitor certain spaces – which may be public or private – to maintain and ensure the security of the spaces, prevent any illegal activity, protect property and dissuade intruders.


CCTV: how it works

From a technical point of view, a basic CCTV system consists of cameras and transmission, display and recording systems.
The cameras capture the images and make it possible to transport the signal to another destination. The transmission system transports the image to a specific location (such as a central/video recorder), where the images will be viewed through monitors (whether TV, smartphone or computer). This visualization can be done in real time or later (using a recording system that stores the images).

Thanks to the technological development, many innovations have emerged in CCTV systems, which can be divided into two main categories: Analog CCTV and Digital CCTV (based on IP networks).

Through these systems, the cameras are equipped inside with a micro computer capable of converting and encoding the video into data that can be sent over a computer network, and images and audio can be viewed live from one location or multiple locations, through the local network, Internet or intranet.

It is also possible to configure the system in certain events. For example, it is possible to record only when motion is detected (saving storage space), or to send alerts by email or SMS, giving greater sense of security to users of the space under protection.
The great advantage of digital CCTV is the image definition, being a more modern and a little bit more expensive system.


CCTV systems are quite common and can be found in commercial establishments, busy public spaces and even in residences, due to the control they allow over the monitored areas.
In commerce this is a type of surveillance that can be quite useful, not only for security, but for the possession of evidence in case of theft or other type of incidents.


CCTV: advantages

CCTV systems are very important for the security of people, goods and spaces. Among the main advantages are the following.

Dissuade the Crime and give peace of mind
Is is the major goal with the installation of a CCTV system and one of its greatest benefits. Having a CCTV system shows that the space is being watched, preventing it from becoming an easy target and deterring intruders from any attempted theft or invasion.

Help with conflict resolution
If the first point fails, CCTV cameras can help to recognize intruders and thus resolve the crime in question.

Monitor activities and movements
Have a CCTV system ensures the monitoring and recording of those visiting your home, office or store, for example, and all events that occur in these spaces. In this way you can detect suspicious people and keep them under control.


CCTV: legal implications

Despite the frequent use of this type of systems, the installation of video surveillance should follow some legal restrictions. In fact, video surveillance involves issues of image rights and privacy, and it is up to the law to decide to what extent these systems can be installed and used.
Among other things, the existence of the CCTV system must be well signalled in order for business to be safeguarded in relation to privacy policies.

To ensure that it meets all requirements, you should contact security professionals or companies with a valid license and permit, which may help you set up the system.