Today we will learn how to planning a surveillance
CCTV cameras for home, as we know that CCTV system is cheap than IP surveillance system but IP surveillance system have better performance and choices than CCTV.
It is important that careful planning and consideration are
done before fixing up a CCTV system. The followings are some tips to help you
plan your desired CCTV system.
CCTV DVR (Digital Video Recorder)
The CCTV DVR is the brain of the system, all signal cables
will be connected to the DVR. Locate your DVR at a place where the cables can
be neatly covered or concealed, ensure that at least one power socket is
available at the area. For Network CCTV DVR,
the unit must also be connected to your internet Modem/Router, a network
cable is used to connect the CCTV DVR to your Modem/Router.
Some CCTV DVR (especially PC-based system) requires a display
screen to perform configuration and maintenance work, make sure that enough
space is allocation for the display screen when planning the CCTV system. The
display screen can also be located away from the CCTV DVR (for eg. in another
room) if it is mainly used for monitoring purpose. In such cases, the addition
cabling for the display screen must be taken into consideration.
It is important that adequate ventilation is provide for the
CCTV DVR, insufficient cooling of the DVR will result in premature failure of
the DVR internal component especially the Hard Disk. Never place the CCTV DVR
in an enclosed cabinet. If possible, locate the CCTV DVR in air-conditioned
environment such as a server room. Do not place object on top or in any way
that will block the DVR's ventilation holes or louvers.
CCTV Cameras
When choosing your CCTV camera, consider the following
factors: angle of view, night viewing capability, indoor or outdoor use,
location of camera.
The location of the camera is an important factor that
affects the effectiveness of the CCTV system. Cameras located at high position
give a better overall view but might be ineffective in capturing human faces.
Cameras positioned too low are prone to vandalism. Wide-angle cameras give a
good overview but compromise on image details, narrow-angle cameras give good
image details and are suitable for long corridors. For outdoor, weatherproof
cameras are required, surge protection devices might be required if the area is
prone to voltage surge or lightning’s. IR cameras are more effective for short
distant & enclosed area (typically less than 20-30m), IR cameras are not
very effective for viewing vast outdoor area at night. If surveillance of
outdoor area at night is important, use good quality Day & Night camera
which has low lux rating and install additional lightings at area of
importance. Finally, never position a camera to view directly onto a light
source.
I hope this article are useful for you
