Security DVR for Surveillance and Safety
dvr security system
DVR stands for Digital Video Recorder. It is faster and easier to manage than non-digital and analog systems. Moreover, it provides instant access to recorded or live video. You need not worry about storage, too, because the bulk of video that can be stored on a single disc tremendously outweighs that stored on tape. In fact, a single disc is the equivalent of over 30 VCR tapes.
There are two types of DVRs, PC-based models and stand-alone units. PC-based DVRs come with 4, 8, 12, 16, or 32 camera inputs. These security DVR systems convert analog signals to digital signals and compress them. The compressed data is then stored on a hard drive for archiving and playback. By entering the date and time using their on-screen menus, PC-based DVR systems allow you to search and easily retrieve images and videos of any point in time.
You can access a DVR surveillance camera system from a remote location using any TCP/IP network or dial-up connection. The PC-based DVR has the added advantage of allowing you to connect more cameras when you install multiple DVR cards in your computer. These capture cards are available from INOX, AverMedia, and GeoVision.
You can also opt for stand-alone DVR systems. It can be operated by the simple push of a button and does not require the use of a PC. They come with 4, 8, 9, or 16 camera inputs. Because their video is compressed less than PC-based units, stand-alone DVR security systems offer better picture quality. The software of these DVR surveillance systems is often more stable than PC-based DVRs.
Standalone DVR units are very efficient when used for home security. They allow you to monitor your security cameras while you watch TV. They also include an IR remote that lets you control the live video from your security camera. If you want to record and store this data, then get a stand-alone DVR model that includes a hard drive.
Security DVR systems provide detailed images and crystal clear video that do not degrade. They also allow you to record video for a longer period of time and let you pause the video without distorting the picture.
Here are some tips to help you buy the right DVR cards:
1. Always check the card’s frames-per-second display. The frames-per-second designation is the rate at which you can view the video. Thirty frames per second is the average rate of playback according to the National Television Standard Committee. Also, be sure that this rating is quoted on a per-channel basis.
2. Check the codec processor. Codec is the acronym for compression-decompression. This is a program that allows the DVR to capture videos. If at all possible, purchase an MPEG-4 Part 10 Codec. This is the latest and most efficient codec available today, which gives you high-definition images.
3. When buying a security DVR card, check the file size. The larger the file size, the sharper the video image. Keep in mind too that the faster the rate of transmission, the less storage space in your hard drive is required.
Also check reviews about Cctv Security and Security Alarms
