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The Rise of DVRs: The Basics 2008:1 by K Ezeugwu
DVRs are the latest addition to video recording technology. Digital video recorders or DVRs are leaps and bounds ahead of analog recording devices such as VCRs. From DVDs and Tivo to surveillance system integrated DVRs, digital video is available everywhere. When it comes to digital video technology security systems, a DVR CCTV system provides many advanced functions over VCR technology including video searches by event, time, date and camera. There is more control over frame rate allowing disk space usage to be optimized. Integration into the system allows for easy manipulation of PTZ (pan tilt zoom) cameras and allows triggers for recording events through product security tags, register usage tags and motion detector settings. Thus allowing the DVR owner unlimited security options in protecting their home or business . In some DVR security systems, remote access to security footage is achieved by connecting the DVR to a network or the internet and remote viewing in real time through a PC or laptop. Also, DVRs can be programmed to send alerts to a cell phone or email based on what events the owner programs into the DVR. For example, a convenience store owner may want a recording alert sent anytime a safe is accessed. In comparison, DVRs range in storage capacity some can record for months onto the hard drive and the DVR can also be set to overwrite the oldest security footage should the disk become full, thus eliminating tapes and their associated time-cost. With digital video technology, images record directly onto the DVR hard drive. Additionally, this allows for image manipulation, images can be zoomed and enhanced for police or security use. Subsequently, the cost of the older CCTV systems is substantially greater than the new DVR systems. With more storage, better quality and greater control, the DVR integrated surveillance system is the best buy available today. Relevant link DVR playground For more visit iTrigger's Video surveillance |
