Posts Tagged ‘
security camera’
Thursday, June 30th, 2011
One of the most popular digital video security system features is the zoom CCTV or Closed Circuit TeleVision. There are many different types of Zoom CCTV cameras designed for a multitude of uses; be sure when shopping for one that you get the features you need.
What is a “zoom CCTV” anyway? It’s a digital video security camera used in CCTV that can vary its lenses focal length enough to enlarge objects farther away from the camera and make them appear closer (enlarged) and with more detail. These lenses are often referred to as varifocal.
Tags: Closed Circuit Television, digital video security camera, digital zoom, security camera, zoom cctv
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Monday, June 6th, 2011
A multichannel security camera usually refers to a wireless security camera that has more than one frequency that it can transmit its video (and audio for some) data over to a corresponding receiver. The multichannel aspect is important to prevent cross talk, interference, or other reception problems.
Let’s begin our discussion with multichannel security cameras by reviewing how a “wired” digital video security system works.
Tags: Multichannel Camera, Multichannel Security Camera, security camera, security camera system
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Tuesday, May 31st, 2011
The security camera computer of a digital video security and surveillance system is basically the “brain” of the system. This is where the COmpression/DECompression or CODEC utility is normally used to shrink the size of the incredibly large digital video files made by the security camera. The security camera computer is also the central controller for the entire digital video system, coordinating all the actions of the components in the system.
Another name that is more commonly used instead of security camera computer is Digital Video Recorder or DVR. Although admittedly, there are some systems where the DVR is only a storage device and does not control the entire system. Let’s start from the beginning to see just exactly what a security camera computer does.
Tags: security camera, Security Camera Computer, Security Cameras, Security Computer
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