CCTV is the abbreviation for Closed Circuit Television. CCTV cameras are used to monitor a particular area where they are installed. Modern CCTV systems are composed of several parts that are used simultaneously to achieve proper monitoring and detection. These parts are the DVR, cameras, hard disk drive, cables, monitor, and power supply.
DVR and its Functions
When you hear the word full D1, it means that the DVR has the highest resolution that any other CCTV system has to offer. Combine this with high specs CCTV cameras and you’ll have the best CCTV system of all. Full D1 DVR is commonly used for industrial purposes that practice tight security and settings wherein facial identification is vital. The problem with this DVR is that it costs a lot higher than other types of DVRs but with very minimal difference in the picture with its counterparts.
Half D1 Half CIF
For small businesses or for a not-so-strict environment, Half D1 is acceptable. This is the most commonly used DVR today since they are extremely affordable but offer high-quality pictures. When you say half D1 that means that only half of the numbers of cameras installed in the DVR can reach its maximum resolution (480×320 px), while the other half can only manage to provide (360×280 px). The reason why many people opt for this type is that it also produces high-quality images but does not come with a hefty price tag.
Full CIF is another type of DVR. This type produces the lowest quality of all, though to some people it is already acceptable. Full CIF DVR produce 360×280 px resolution in all cameras installed. Some people might not even notice the difference between these types of DVR but to those who have background knowledge with CCTV or those who have very clear eyesight, this type is not good. They do not produce high-quality pictures, which makes them the cheapest and the most rarely used DVR of all. Full CIF DVR is the oldest model of DVR.
DVR and its Features
Modern types of Digital Video Recorder process the lowest video compression possible, the H.265. This is why recordings and playback may now be extended to months instead of days. You can now also connect it to the internet, so that you can access your cameras remotely or from another location using your computer or your mobile phones. These features make it easier for some people to run their businesses even without actually being there. There are other more sophisticated features that CCTV camera has to offer like motion detection, video loss alarm, power loss alarm, manual and scheduled recording, and other more entries that alleviate your protection and your personal security.
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