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Monday, 11 July 2011

Choosing a Perfect Security DVR System

Posted on 07:21 by Unknown

Earlier, videos from multiple security cameras were recorded on time-lapse VCRs and multiplexers, but nowadays, due to technological advancements, the digital video recorders (DVRs) have started replacing the multiplexers and VCRs. A Security DVR camera is simply a digital video recorder which is designed to be used as a surveillance tool. The DVR security camera systems record the video on a hard drive-based medium, eliminating the need for a videotape. A security DVR system is a sophisticated system that has the ability to manage multiple cameras at the same time. It can also record and playback the video locally or through the internet.

Security DVR systems can be classified into PC-based models and Stand-alone units. The PC-based models contain advanced features like face recognition, missing object detection, and unattended object detection. While the stand-alone units offer simultaneous viewing, recording, backup and playback capabilities to the users. The PC-based DVR systems convert analog signals to digital signals and then compress these signals, which are then stored on a hard drive for archiving and playback. On the other hand, Stand-alone units are highly efficient and are the best options for home security. The video in these is less compressed as compared to PC-based systems and can be operated by the simple push of a button and does not require the use of a PC.

The security DVR system also supports internet viewing and is available in 4, 8, 9 or 16 channel units. These systems provide detailed images and crystal clear video that do not degrade. They also allow the users to record video for a longer period of time, which can be paused without distorting the picture. The digital video recorders are thus, easy and inexpensive to set up and are a perfect option for performing surveillance for the user's home or office.

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