Setting up a Home Alarm System

Statistics alone are testimony to the fact that burglaries and intrusion attempts are significantly lower in homes that are protected with Alarm systems.

Even the attempts which are made are more likely to be thwarted.

And unlike the past when Home security was considered to be exclusively made for the rich and famous, today they are cost effective and most homes rely on them.

So how can you set up a home alarm system? What all are the factors that you need to consider? Let’s take a quick look.

WDR CCTV Cameras: High Quality Images at all times

Picture this. A burglar or an intruder tries to hijack a car in a parking lot. Thankfully, you have got a CCTV Surveillance System installed.

But just as the CCTV security camera is about to capture his face, there is a flashing glare from the windshield of a passing car and all that the camera records is a blurred shadow.

This is a common problem with normal CCTV cameras that are installed in places that have varying light conditions.

Video compression for DVR in CCTV systems

DVR stands for Digitals Video Recorder. Advantage of using a DVR technology over analog recording is that the Digital Data recorded by DVR can be compressed and saved in special hard disk and can be reviewed later. Video compression plays an important role in overall operation, properly compressed video can also save disk space.
All DVRs use some kind of compression algorithm called a codec to keep the digital video files at a manageable size. The average size of an uncompressed still image frame at 320x240 resolution in 24-bit true color is about 230400 Byte or 2.3 Mega Byte. Same image frame in 32 bit color is about 307200 Byte or 3.07 Mega Byte.

An hour’s worth of one channel of uncompressed video at 25 frames per second would take up 21,600 megabytes (21.6 GB)

Uncompressed video of one hour will take hard disk space

Frame size 320*240 Pixel at 25 frames per second would take up
25*3600* 230400 Byte = 20736 Mega bytes
= 20.736 GB (24 bit color)
25*3600* 307200 Byte = 27648 Mega bytes
= 27.648 GB (32 bit color)

Get CCTV technology in India from Digitals India. Visit www.digitalsindia.com/cctv.html

What are prime requirements for CCTV system?

Prime requirements for CCTV system are-
Product Reliability and robustness.
User friendly operation.
High resolution & Good quality images.
High compression ratio to save hard drive space and band width.

Source: www.digitalsindia.com