17th September 2011, 02:31 PM
Automated Home Sr Member
Using DFP Mic to set presence
I was wondering if anyone has managed to use the mic in the DFP to set room occupancy? The problem i'm having at the moment is that when the wife turns the lights off to watch TV while in bed, the sensors (DFP and ceiling mounted PLT) don't pick up any movement as she is under the duvet. She may watch TV for an hour or two so by the time presence is detected again the room state would have reset and the lights go on. I know i can increase the default override time to 2hrs but i'd rather not.
However, i have a DFP about 50cm from the TV, so when the TV is on it's able to pick up the audio from the TV. Can this be used to set the presence of the room? I know this would mean that if the TV was left on the room would always remain occupied but we always turn the TV off when we leave the room so that's not going to be an issue.
The ultimate goal is to have a sensor on the bed frame to detect when someone is in bed so i can be more aggressive with the time outs, but that's a while away
17th September 2011, 10:39 PM
Automated Home Legend
Unfortunately not, but perhaps the approach can be different or other parameters changed. A bedroom light may typically be operated using the 'operating times' option. I.e. say the earliest you might go to bed is 10pm and latest get up at 9am then it could be that you set operating period to be between 9am and say 10:30 or 11pm. That way when you go to bed you may switch the light off (overriding automation) but by the time any presence time out occurs it is then within the non operating period. Another thing is that if your install is quite accurately sensorised then the occupancy reset timer can be set to a longer period. Present maximum is 1hr but likely that this will be increased because in theory if the sensing is very accurate this failsafe reset is not necessary (in practice absolute accuracy cannot be guaranteed so you do need it but maybe could be longer).
20th September 2011, 11:11 PM