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Q: What is a CCTV Survillience System ?
Answer:
CCTV (Closed Circuit Television) is a visual surveillance technology designed for monitoring a variety of environments and activities. CCTV systems typically involve a fixed (or "dedicated") communications link between cameras and monitors.
Q: What sort of technology is used in CCTV systems?
Answer:
The modern CCTV system involves a linked system of cameras with full pan, tilt, and zoom able to be operated remotely from a control room.
These systems may involve sophisticated technology. Features can include night vision, computer assisted operation, and motion detection facilities which allows the operator to instruct the system to go on red alert when anything moves in view of the cameras. Camera systems increasingly employ bullet-proof casing, and automated self defense mechanisms which ensure that cameras under attack are covered by neighboring cameras These can be legitimately described as military style systems.
Q: Can CCTV reduce crime?
Answer:
Glowing reports of the effectiveness of CCTV are announced regularly. CCTV deters 'opportunistic' crime, where people take advantage of a situation on the spur of the moment. The government is using CCTV as part of a long term plan to reduce overall crime. "Today's opportunist is tomorrow's professional criminal. If we decrease the number of opportunities for easy crime, we can reduce the number of people becoming professional criminals".
The cameras are also creating a vastly increased rate of conviction after crimes are detected. Virtually everyone caught committing an offense on camera pleads guilty nowadays. Once people know they have been videotaped, they admit the offense immediately. Police are delighted at the time and money they are saving from long and expensive trials. Indeed in some cases, people are surrendering after the mere mention in news reports that their alleged activities had been captured on CCTV.
Q: What is DVR ?
Answer:
Digital Video Recorder (DVR) is the next big thing in CCTV surveillance technology. While analogue VCR recording is still the most common method of recording, the benefits of changing to digital recording will soon alter this situation.
Instead of using tapes to archive video, DVR system use hard disk drives. This means that operator do not have to constantly change tapes. Being digital data, there is no degradation in the video quality.
Another benefit of using a hard disk drive is random access. Just select the date and time and footage of any part of the video can be accessed within seconds. Operator can skip ahead or go backwards to any date and time with ease. The video can be paused and replayed while the DVR continue to record the current live video in the background; an impossibility with the VCR tape recorder.
Q: Why choose Digital Technology over Tradition CCTV ?
Answer:
Typical CCTV security system usually comprises of less than 16 cameras with a 20' foot field of view, a switcher, or a multiplexer that records to a VCR. In the event of an investigation, the authorities will ask for the VHS tape for evidence. Due to degradation of video quality, the VHS tape is one their weakest links. Today, digital solutions are a vital effective security solution that meets the needs of the federal authorities.
Q: What is remote monitoring ?
Answer:
Remote monitoring enables user to view a remote site vie a telecommunication link. The choice link today is vie broadband connection through the internet. Users can view both live and recorded images from anywhere in the world.
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