CCTV SYSTEM
CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes.
CCTV relies on strategic placement of cameras, and observation of the camera’s input on monitors somewhere. Because the cameras communicate with monitors and/or video recorders across private coaxial cable runs or wireless communication links, they gain the designation “closed-circuit” to indicate that access to their content is limited by design only to those able to see it.
Older CCTV systems used small, low-resolution black and white monitors with no interactive capabilities. Modern CCTV displays can be color, high-resolution displays and can include the ability to zoom in on an image or track something (or someone) among their features. Talk CCTV allows an overseer to speak to people within range of the camera’s associated speakers.
Different CCTV Cameras
Internal & External Dome Camera
The dome camera is one most commonly used for indoor and outdoor security and surveillance. The shape of the camera makes it difficult for onlookers to tell which way the camera is facing, which is a strong piece of design, deterring criminals by creating an air of uncertainty.
Other benefits of this cameras include:
●Ease of installation
●Vandal-resistant features
●IR night vision
Bullet Camera
Bullet cameras are long and cylindrical in shape and are ideal for outdoor use. Their strengths lie specifically in applications which require long distance viewing. Installed within protective casings, the cameras are shielded against dust, dirt and other natural elements. The cameras can easily be mounted with a mounting bracket, and come fitted with either fixed or varifocal lenses depending on the requirements of its intended application.
Other benefits of this cameras include:
●IR night vision
●Compact size aids installation
●High-quality image resolution
C-mount Camera
Coming with detachable lenses, C-mount cameras allow for simple lens changes to fit different applications. C-mount cameras can cover distances beyond 40 ft thanks to the possibility to use special lenses with these cameras, whereas standard CCTV lenses can only cover distances of 35-40 ft.
Other benefits of this cameras include:
●Can support changes in technology
●Effective for indoor use
●Bulky size makes them noticeable (which acts as a deterrent)
Day/Night Camera
Capable of operating in both normal and poorly lit environments, these cameras benefit from not requiring inbuilt infrared illuminators as they can capture clear video images in the dark thanks to their extra sensitive imaging chips. For this reason, these cameras are ideal for outdoor surveillance applications in which IR cameras are unable to function optimally.
Other benefits of this cameras include:
●Record in both colour and black & white.
●Wide variety of sizes available
●Infrared capability
PTZ - Pan, Tilt & Zoom
Coming with detachable lenses, C-mount cameras allow for simple lens changes to fit different applications. C-mount cameras can cover distances beyond 40 ft thanks to the possibility to use special lenses with these cameras, whereas standard CCTV lenses can only cover distances of 35-40 ft.
Other benefits of this cameras include:
●Can support changes in technology
●Effective for indoor use
●Bulky size makes them noticeable (which acts as a deterrent)
Thermal Image Cameras/infrared Cameras
One of the best 24 hour surveillance cameras around providing airports, seaports, boards and many other critical infrastructures with quality images, no matter what time of day it is. Infrared cameras have small LEDs surrounding the lens to help pick up moving figures in pitch black. Thermal image cameras can see over long distances, up to 300 meters away.
Other benefits of this cameras include:
●Detect intruders up 250-300 meters away
●Good in low-light
●Thermal radiation passes through visual barriers
Varifocal Camera
With the ability to zoom in and out without forfeiting its focus. Varifocal cameras allow you to adjust the focal length, the angle and increase or decrease the zoom – ideal for obtaining footage in a square room where you would normally experience a ‘dead zone’ with any alternative, fixed lense camera.
Other benefits of this cameras include:
●Can capture those ‘dead zones’ that other cameras can’t
●Offer exceptional focus
●Work well up close and at long distances
Network Cameras
These cameras share the images across the internet, so CCTV footage can be easily accessed. Network cameras are ideal for both domestic and commercial purposes because you can see what’s going on whilst away from the property.
Other benefits of this cameras include:
●Data can be easily accessed
●Ideal for homes and companies
●Less cabling and less maintenance