Commercial CCTV Video Surveillance

Video Surveillance provides security. Security from unauthorized entry onto property, security to people and property from attacks or theft and security in knowing that should something happen, there is the ability to go back and replay video of what occurred. Horizon is a full service vendor, installation network and servicing company for most major brands of commercial video surveillance systems. From single camera systems to industrial complex perimeter security networks, Horizon can help.

Camera Lenses

The camera lens is key to capturing a quality image. The lens must provide the proper field of view for the application and, if needed, be able to zoom or adjust focus via remote control. Rainbows 160MM CCTV telephoto lense The Rainbow G10X16M 16-166mm lenses (right) is a 3-motor lens with full control of Zoom, Focus and Iris for optimal operation flexibility.

Night Vision can see in almost total darknessLight intensifying lenses for night vision ability allows for usable video in almost total darkness. Often referred to as "starlight" lenses, these lenses collect existing light, intensify it and pass the image to standard CCTV cameras. Often you will these images as a green monochrome picture, although when used with a black and white camera they appear black and white.

 

There are many factors to achieving a clear image. Lighting, CCD size of the camera and DVR/NVR frame rate, however high quality optics can make the difference between a crisp picture or a muddy image.

Surveillance Video capture with a clear imageSurveillance Video Capture with a blurry image

Horizon only uses the best cameras and lenses for each application.

Video Cameras

A CCTV camera must provide the image resolution required for the application and operate in low light (low lux) conditions if needed. SunStar 300 Ultra Low Light CameraThe Sunstar 300 camera offers perhaps the lowest level of visible low light performance, .0005 lux. The Sunstar 300 (right) uses existing visible light to deliver a monochrome image in almost all lighting environments.

Active infrared camera can see in total darknessWhen used with invisible infrared (IR) lights, active infrared cameras can see in total darkness . On the left we see a person with a flashlight. The rest of the room is flooded with invisible infrared light, well invisible to the human eye, but not the camera. Infrared flood lightsMost IR cameras use built in banks of infrared emitting LED's to provide the necessary illumination, however If the built in infrared lighting is not enough, Horizon provides auxiliary infrared lights (right) to increase the operating range of IR cameras.

Thermo-Imaging sees the same in day or night Thermo-Imaging cameras see heat and never need natural or auxiliary lighting. Thermo-imaging cameras are useful in detecting people, vehicles, animals and overheating machinery in total darkness or the bright of day, even through smoke or fog. Regardless of lighting conditions, thermo imaging looks the same. Used by law enforcement, the military and security services, thermo-imaging technology is rapidly becoming an integral component to more companies looking to increase their video surveillance capabilities.

Housing / Mounts

Camera mounts come in two types, fixed and motorized. Some cameras come with built in motorized AZ/EL (azimuth/elevation) also called pan / tilt mounts.Dome Pan/Tilt Camera These are often found in a dome housing configuration. Motorized mounts can be set to scan a set pattern or be manually controlled through software or a physical joy stick.Pelco Explosion Proof Pan/Tilt Mount
Pelco Explosion Proof Camera HousingIn addition to the mount, the camera housing plays a large role in the operational ability of a camera. Explosion proof housing and mounts from Pelco (right) provide the highest level of reliability for harsh and hazardous environments.

Signal Transmission

Perhaps the most overlooked part of any video surveillance system is the signal transmission to the monitor and recorder. In the past, surveillance images have been carried on coaxial cable. Over long distances this form of signal transfer can degrade and is susceptible to interference. Network Video uses IP digital technology to transfer images without denigration. When combined with fiber optics, surveillance images can be sent miles within a secure infrastructure or use the Internet for world wide video distribution.

Video Recording

Network video using IP-based signal transfer is ideal for long term storage of surveillance video. NVR Storage Network Video Recording (NVR) uses computer and storage arrays to maintain a video surveillance library. The only restriction on how much video can be stored and for how long, are how many hard drives are within the storage array. Analog video systems use a Digital Video Recorder (DVR). A DVR accepts analog video, converts the signal to digital, then compresses the signal for storage. A NVR system use the existing digital IP-video and does not have to convert the video for storage. Horizon uses both analog cameras with auxiliary digital encoders and network based cameras to allow for seamless digital management of all camera within the system.

Management

Managing a network of dozens or hundreds of cameras can be daunting, but with the right software system to manage the video and NVR system, system management is easily obtained.DVTEL Latitude NV Software Horizon is an Authorized vendor and service company for DVTEL. DVTEL is an industry leader in IP-based security management. Their iSOC ®V5 management software creates a common operational picture that enables you to capture, manage, analyze, integrate and then act on previously unorganized and overly complex data. This provides improved reaction time, enhanced operator productivity and reduced corporate loss.