Video surveillance is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It is used for surveillance and security purposes and is typically installed in areas where there is a need to monitor activity or deter crime.
Types of video surveillance systems
There are two main types of video surveillance systems: analog and digital.
- Analog video surveillance systems use coaxial cabling to transmit the video signal to the monitors. Analog systems are typically less expensive than digital systems, but they offer lower image quality and fewer features.
- Digital video surveillance systems use internet protocol (IP) networks to transmit the video signal to the monitors. Digital systems offer higher image quality and more features than analog systems, but they are typically more expensive.
Components of a video surveillance system
A typical video surveillance system consists of the following components:
- Cameras: Cameras are used to capture the video footage. There are a variety of different types of video surveillance cameras available, including indoor and outdoor cameras, fixed and PTZ (pan, tilt, zoom) cameras, and day and night cameras.
- Recording device: The recording device is used to record the video footage from the cameras. Recording devices can be digital video recorders (DVRs) or network video recorders (NVRs). DVRs record video footage to hard drives, while NVRs record video footage to network storage devices.
- Monitors: Monitors are used to view the video footage from the cameras. Monitors can be standalone monitors or computer monitors.
- Cabling: Cabling is used to connect the cameras, recording device, and monitors. Coaxial cabling is used for analog systems, while Ethernet cabling is used for digital systems.
Benefits of video surveillance
Video surveillance offers a number of benefits, including:
- Deterring crime: Video surveillance cameras can help to deter crime by creating a visible presence and by recording video footage of any crimes that do occur.
- Monitoring activity: Video surveillance cameras can be used to monitor activity in a particular area. This can be helpful for security purposes, such as monitoring for suspicious activity or for tracking the movement of people and vehicles.
- Providing evidence: Video footage can be used as evidence in a criminal investigation. This can help to identify and convict criminals.
How to choose a video surveillance system
When choosing a video surveillance system, it is important to consider the following factors:
- The size and layout of the area to be monitored
- The level of security required
- The budget
- The type of video surveillance system desired (analog or digital)
It is also important to work with a reputable video surveillance installer to ensure that the system is properly installed and configured.
We supply and install of both IP and analogue camera systems from simplistic home viewing systems to large complex integrated solutions and continue to advance technology through integration and leading manufacturers.
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