Technology used in CCTV Cameras:
Currently over 7 video surveillance technologies are in use and they are: High Definition Video Transport Interface, High Definition Composite Video Interface, Analogue High Definition, High Definition Serial Digital Interface, IP Network, Advanced Analogue systems and Analogue systems.
Of all these, the IP Network technology is one that finds use in all commercial areas as well as homes. This technology is used in confined areas to watch over human activity for the purpose of security as well as on roads and highways, along with various apps that facilitate license plate identification, traffic estimation etc.
So, if you are keen on making use of this technology in your home or office, here's a quick guide to help you identify the right camera that will solve your purpose:
The Form Factor: Form factor basically means the kind of camera that will be best for your need. The different kinds available are the dome cameras, bullet camera, turret cameras, box cameras, vandal proof cameras and PTZ cameras.
Lens size or FOV: This basically determines the focal length of the lens used. If you want to monitor a small area but with the finer details then you must go for one that has a higher focal length and vice-versa.
Resolution: Well for this you must always go for the HD CCTV camera online.
Infrared support: When you install a camera you would want it to keep watch throughout the day. So, the camera must be well equipped to capture images in low or no light and for this you need a camera with Infrared lights.
With these specifications in place you will always be able to get the camera that matches your requirements and has the right technological attributes.
Along with the camera itself, another aspect that determines the performance of a surveillance system is the DVR or the recording device that stores all the data for you to review whenever the need be. So, just like you will have to look into the specifications of the camera you will have to look into the following specifications and attributes of the DVR:
Options for live viewing, recording, playing back recorded video, backing up data
Ability to compress files
2 way audio facility with 16 channel audio recording
VGA output slots and LAN ports
Software to watch live and playback video on handheld devices
Pre-Alarm recording facility with NAS compatibility
USB back up facility
With these two components in place you can have a highly functional and accurate surveillance system that can keep a watch for you.
So, if you are planning to install CCTV cameras in your residential or commercial space, you must look for the above mentioned specifications in the camera as well as the recording device. Also, you must always get the devices from reputed vendors who have been working in this domain for very long and have received excellent reviews from customers for their customer support and service efficiency.