CCTV security systems were introduced in the US and the UK during the 60s and 70s.
CCTVsecurity systems are over a thousand times more advanced than the basic camera and monitor configurations that first came out in the 1960s. Systems from the 60s were basic, composed of very low resolution black and white cameras connected by coaxial cable. Each camera was plugged into a black and white monitor. A 16 camera configuration required 16 monitors. New applications of camera security systems include : belowground trains and stations, sports stadiums, mercantile establishment , plaza , public facilities, community parks, garages and car park.
CCTV Technology Evolution The basic technology evolved in the 60s. First of all , cctv switch boxes were added. A switchbox would allow the operator to switch between cameras. Operators now could see multiple camera views on one monitor. Only one camera could be seen at a time . The 70′s brought Multiplexers, VCRs and solid cameras. Multiplexers allowed the screen to be broken into numerous frames on the same monitor. VCRs allowed straight forward recording and video dispersion. Solid state cameras helped improve dependability and the integration of VCRs.’First generation’ CCTV security technology was impeded by some fairly major operation related problems .
In the 80s we learnt that VCR recorders had many troubles. VCR recorders were temperamental . The quality of the recordings was poor. The combination of low resolution camera images , poor caliber video tapes and low tech solutions meant that grainy and unclear images couldn’t be relied on even for conclusive recognition purposes.
VCR technology couldn’t allow the operator to review and record occurrences at the same time and it was a very time consuming procedure to find and review specific events .There was no motion detection capableness and no way of looking at events from a removed location.
Expensive for what you get Even though early CCTV systems supplied only relatively introductory functionality and moderate performance , they were very costly – both in terms of the initial equipment cost and the installation . Since this is still a new growth industry, there is still a lack of qualified and competent installers.
The Next Generation CCTV security systems arrived in the mid 90s. The fresh technology was a computer established Digital Video Recorder (DVR) DVRs allow images to be recorded at much higher resolution than previously . DVR got rid of a major problem with first generation CCTV systems Video Tape! Worn out, forgot to change the tape, VCR recording tape.
DVRs are automatic and never require user intervention. When it is time to look at recorded images, the DVR continues to record . Images are clock time and date stamped and are very easy to review. DVRs using IP (Internet Protocol) technology allow authorized removed users to view , convey two way audio, fully command the cameras and system itself over a local area network (LAN), a wide area network (WAN) or online . With such pliable access, the modern generation of CCTV cameras may be controled remotely from a control center or, in fact anyplace with internet access.
Equally, high quality digital images may be streamed anywhere and captured at a convenient and secure location. But it is n’t only the operating platform that has developed significantly ; camera technology too allows far more functionality.
Today’s generation cameras can PTZ – pan, tilt and zoom, have higher resolution options, a large variety of lenses and are also capable of operating in ‘night vision . Audio is also now part of CCTV DVR technology. An operator is now able to sync motion established video events with audio analysis. Two way audio transmitting allows the operator to query possible trespassers, give directions to faculty and to tape search replay in both audio and visual form. Next generation DDTV DVR systems are interchangeable with early camera technology, and are scaleable, flexible and can be incorporated with a wide range of other management systems, such as access control and building management systems.
CCTV has surely come a long way since the 1960s ; it’s clear that the future of CCTV is secure and that technology helps keep to develop to meet the necessities of the surveillance market.
Tags: CCTV Security Systems, Closed Circuit Security Systems