Security Camera Surveillance (CCTV)
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The world today is a dangerous place, but there have been advances in technology that have made it safer. That may seem like an obvious fact, but what is not so obvious is how the various devices that are available work, and how in particular they help to protect us. Take security camera systems, for example. They're relatively common these days, but few people know the specifics of how they work and actually improve security for people.
Video security systems can be set up as single camera or multiple camera operations. The idea for the systems to be able to capture footage 24 hours a day in case criminal activity happens during any of those hours. Many businesses own these systems, but they are not uncommon in homes either.
Cameras are typically set up to be either easily seen or well hidden. There are reasons for both of strategies. Video security systems that are easily seen--usually hanging high and in the corner of a ceiling--act as a deterrent against criminals. Hidden cameras do not allow criminals to find the cameras' blind spots.
Video cameras are fed to central locations in the business or home, usually a large closet or manager's office. The footage can be seen live to monitor for security, or played back in case of a break-in or other crime has been committed.
Recordings are captured using multiple methods. For the highest quality footage, owners can use tapes in real time, but that would require the removal and replacement of tapes at a rate of every couple of hours. The more conventional method is using a time-lapse VCR. These VCRs are specifically created for security systems and can record 24 hours worth of footage onto one tape. As technology improves, many business owners opt for security system DVRs that actually record footage onto a hard drive.
If there are multiple cameras, they are usually fed into the main security capture device as a split shot. Four cameras will each take up one-fourth of the screen, or the capturing program can switch through each camera using timed intervals, giving an even view from every angle. Every feed is also embedded with a date and time code to provide accurate information.
DVR (Digital Video Recorders)
DVR or Digital Video Recorder is the most common and desired form of monitoring and recording in the Video Surveillance industry today. DVRs were originally designed to replace low quality, high maintenance, and CCTV video recorders such as Video surveillance VHS analog recorders. The abilities of a DVR has not only revolutionized the way modern day CCTV video Surveillance systems are built but has added features which make a DVR far superior to the previous recording methods of analog recorders.
Video security systems can be set up as single camera or multiple camera operations. The idea for the systems to be able to capture footage 24 hours a day in case criminal activity happens during any of those hours. Many businesses own these systems, but they are not uncommon in homes either.
Cameras are typically set up to be either easily seen or well hidden. There are reasons for both of strategies. Video security systems that are easily seen--usually hanging high and in the corner of a ceiling--act as a deterrent against criminals. Hidden cameras do not allow criminals to find the cameras' blind spots.
Video cameras are fed to central locations in the business or home, usually a large closet or manager's office. The footage can be seen live to monitor for security, or played back in case of a break-in or other crime has been committed.
Recordings are captured using multiple methods. For the highest quality footage, owners can use tapes in real time, but that would require the removal and replacement of tapes at a rate of every couple of hours. The more conventional method is using a time-lapse VCR. These VCRs are specifically created for security systems and can record 24 hours worth of footage onto one tape. As technology improves, many business owners opt for security system DVRs that actually record footage onto a hard drive.
If there are multiple cameras, they are usually fed into the main security capture device as a split shot. Four cameras will each take up one-fourth of the screen, or the capturing program can switch through each camera using timed intervals, giving an even view from every angle. Every feed is also embedded with a date and time code to provide accurate information.
DVR (Digital Video Recorders)
DVR or Digital Video Recorder is the most common and desired form of monitoring and recording in the Video Surveillance industry today. DVRs were originally designed to replace low quality, high maintenance, and CCTV video recorders such as Video surveillance VHS analog recorders. The abilities of a DVR has not only revolutionized the way modern day CCTV video Surveillance systems are built but has added features which make a DVR far superior to the previous recording methods of analog recorders.
