computer hardware, consumer electronics, electronic components

Video surveillance system

Video surveillance is one of the most reliable and most common methods for maintaining security in government and industry. A video surveillance system includes a host computer which controls the operation of the system, a video switch which selectively interconnects input video signals (represented by dashed lines with outputs of the switch (represented by dashed lines Also included in the system are video cameras, monitors, control consoles, and sensors. In video surveillance systems, video cameras are deployed at remote locations that are desired to be monitored by security personnel. Images from several cameras are displayed on one or more video monitors at a security console. Video surveillance systems often monitor relatively large areas by means of several video cameras or "domes." A dome camera may include one or more cameras, the operation of which can be remotely controlled. A camera in such a dome is typically equipped with a zoom lens. The camera can also be panned and tilted by remote control.



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