Is there any technical reason why the microphone present in the DFP's can't be used for a presence detection input?
Presence detection through panel mic?
Collapse
X
-
I could be wrong about this, but I don't think the panels don't do any processing of the audio from the mics, I think they just pass it back along the audio lines in the Cat5 cable to the PC that's running Cortex. So you could only have one mic live at a time otherwise you wouldn't know where the signal was coming from, and you wouldn't be able to have any audio announcements from Cortex as they use the two same lines in the Cat5.
Jamie
-
-
Andrew,
Under what circumstances do you have in mind as opposed to say the PIR?
Chris,
I'm not sure if light level change would be a very reliable signal. Even though the default filter time constants are probably a bit on the fast side you'd probably have to pass fairly slowly infront of the sensor and be wearing something dark if not occluding a light source (assuming we're looking for a dip). A quick visual look at data from some of my light sensors suggests it might be difficult to pick out a signal that clearly indicates a passing person as opposed to some other variation (eg. windy day with fluffy clouds - difficult to avoid camera motion detection going too .. ). But who knows .. maybe with some judicious filter settings and some more detailed processing of the data maybe a 'voting' quality signature could be picked out. A research project for someone ...
Comment
-
-
Originally posted by Andrew Millne View PostIs there any technical reason why the microphone present in the DFP's can't be used for a presence detection input?----------------------
www.gumbrell.com
Comment
-
-
Originally posted by Karam View PostWell we have often wondered whether the data from the motion sensors could be correlated in some crude way to sleep quality - its just that its data which is available as a free byproduct.
Actually, my mostly tongue-in-cheek comment on snoring was stimulated by something I think is in the help file somewhere about people falling asleep in the middle of the afternoon and that affecting choices on presence timeouts.----------------------
www.gumbrell.com
Comment
-
-
Snoring - I'm not sure my wife will be convinced of that defence
Comment
-
-
Sorry to bump an old topic but I must not have subscribed to it and didn't think it had been replied to.
Basically a while back I was chatting to a friend in my hallway and we were both leaning against the walls so little movement. I only had a short timeout at the time and thought it would have been good if the mic could have been used in that instance as a further sensory input.
Comment
-
-
The biggest problem I can see is that if the TV, radio or music is on in another room the mic may pick this up.IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
Renovation Spain Blog
Comment
-
Comment