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CCTV started out as a military tool. In 1942, through the use of remote cameras and black and white monitors, the German military could watch the launches of its V2 rockets. A short time later, the U.S. military implemented the same technology to develop and test atomic weaponry. This new innovation allowed them to test and observe atomic weapons from a safe distance. Today, CCTV is still used on the battlefield and on military bases around the world. As CCTV technology improved, its security merits were soon recognized by retailers and banks. Not only could it prevent crimes, it could record them as well. CCTVs are commonly used today in retail stores, for traffic monitoring, and in parking lots around the world. Now available in smaller sizes with a variety of advanced features, this surveillance technology has been adapted for home security as well. Security companies offer CCTV in Tuolumne County, CA and in communities around the world. How It Works Closed-circuit television (CCTV) is actually a TV system, but its signals are not broadcasted like those we receive on televisions. Instead, these signals are used for surveillance and monitoring through cameras, monitors, and video recorders, connected through coax cables or wireless communication links. Closed-circuit means that its signal access is only available to those it who are supposed to see it, not shared with the world. Equipment - Cameras vary with their purpose. For example, high resolution cameras are better for large spaces, while lower resolution cameras work for smaller ones. CCTV cameras can be remotely controlled, and connected to a computer network. They are also available in outdoor versions to withstand various environmental conditions. Different zoom features are also available, where lenses can be manually adjusted and focused, or performed automatically by the system.
- Recorders are available in two types: Digital Video Recorders (DVR) and Network Video Recorders (NVR). A DVR uses stand-alone technology, meaning it is not connected to an entire network, just one computer. A NVR is connected to an entire network, and its images can be monitored or viewed by anyone with access to the network.
- Monitors are the screens used to display the images or video surveillance. They are available in LCD (liquid crystal display), LED (light-emitting display) and TFT (a type of LCD with an added thin film transistor) versions.
With the advances in its technology, homeowners and small businesses alike can benefit from enhancing security through the use of CCTV Tuolumne in County CA.
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