another security system 101 ?

jCarroll

Well-known Member
Location
mid-Ohio
How do cameras "sense motion"? I've been told that the DVR notes a significant image change, and says "Ah Ha, something is going on" - that the camera itself just keeps feeding video. Is this mostly correct?

How does a "loss of video signal" get determined? Same way?

Tell me more .....

and thanks!
 
The camera will continue to feed video to the central unit. The central unit will run the image through a computation and look for change, it will then start recording until the computation says no change.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top