LENIK
 Security Design

Solutions by Design




Residential Video Surveillance


We prefer to use Canadian Technology when ever we can.





Residential Video Surveillance

For those of you who are interested in keeping an eye on your children, please remember that all this new technology that we are embracing is sending the photos of your loved one over insecure networks. There is no stereotypes of those who engage in this type of activity, it can be anybody. Be wary of the consumer products that are available to you at your local tech store and recommended by the sales rep. If you wish to know when your son or  daughter is sneaking out while you are at work, let the pros do it or at the very least consult with a professional.

 

Basic Video Surveillance Facts

How much information does a camera need for that information to be useable.  

  • To detect movement  approx - 7.2 Pixels per Foot
  • To recognise an individual - 40 Pixels per Foot
  • To read a parked license plate approx - 45 Pixels per Foot
  • To be able to identify under the ideal  conditions - 80 Pixels per Foot
  • To be able to identify under challenging conditions - 150 Pixels per Foot

The numbers are approximate due to differences in hardware and processes used by  individual manufacturers.
What a typical 2.1 Megapixel Camera with a fixed 2.8mm lense will see.

  • At 50 ft from camera a FOV of 100ft - Approx. 19 Pixels per Foot
  • At 21 ft from camera a FOV of 42 ft - approx.  46 Pixels per foot
  • At 12 ft from camera a FOV of 24 ft -  approx. 80 Pixels per Foot
  • At 9.5 ft from camera a FOV of 19 ft -  approx.100 Pixels per Foot
  • AT6.5 ft from camera a FOV of 13 ft - approx. 140 Pixels per Foot
FOV- Field of View

The numbers are approximate due to differences in hardware and processes used by  differnent manufacturers.
An IP or Megapixel camera needs alot of light to see.

A fixed camera, observing  a door, has only one function, and that is to observe that individual door. If you wish to increase your viewing ability, increase the number of cameras that you have installed. 
How you manipulate camera resolution, lense selection with FOV will determine how effective of a Video Surveillance System you have.