With the growing popularity of video surveillance, people depend on this surveillance system for their own safety. Undoubtedly, there is no way of the rejection of this system. Through this system, a criminal can be caught red handed. Therefore, traders prefer to install video cameras at their shops and stalls.

So far as the salient features of video surveillance are concerned, scalability and elasticity have made this technology unique. The whole video surveillance system contains digital video recorders, USB cards and DVR cards and remote video surveillance device. With the remote video surveillance device enables a person to keep the track of motion activated high resolution digital video and able to display multiple camera from the same spot. Remote witness digital video can be manipulated with much comfort and it has other facilities like remote monitoring, crime prevention and home protection.

This system is compact with CCTV and digital video cameras. CCTV is meant for close circuit television. So all the elements are closely connected. On the other hand digital systems enhance the remote control of the cameras. It is the fact that railway industry has felt the urge to get the benefit of video surveillance system. The recent occurrence of accidents and sabotage puts emphasis on the installation of such upgraded system which will give pre-emptive measures to make the drivers alert about the accident prone areas.

Last but not the least, there are a number of cameras such as dome cameras, infrared cameras and digital video camera which will enable persons to keep the well track of the movement of the persons. It is cost effective and therefore it is accessible to the middle class. Finally, to prevent the crime, it is necessary to use electronic digital surveillance system at home and in offices and at shops and other public places.

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