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Loxone Support Community › Category: Loxone Config › Presence Detector
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4 years ago
Presence Detector

I have replaced one of my motion detectors with the new presence detector as I wanted to use the sound meter to detect when the TV is on and there is someone in the room.

Previously I had the motion detector Mv output into the Lighting Controller MV input. Motion would turn the light on, then when I turned the light off, I could then return to the room a few minutes later and the light would turn on again. I used an additional Smart Socket Air to detect if the TV was on.

I now have the presence detector P output into the Lighting Controller P input and I’ve removed the Smart Socket Air. When I turn the light off, the P output remains active so when I return to the room within the "Overrun time presence", the light won’t turn on.

I tried using the Presence Detection function block, resetting it when I turn the light off, but the Presence Detector remains active and the Presence Detection function block won’t activate.

I’ve tried reducing the "Overrun time presence", but then the P output is more likely to go out when the room is still occupied (for example, if not watching TV), and the light goes out immediately.

Is there something that I’m missing or is it working as designed?

Thanks,

Ewan

3 Answers
0 Vote Up Vote Down
4 years ago

Hi Ewan

I would recommend you use the Presence sensor through the Presence block from the ‘Qpr’ output into the Lighting Controller ‘P’ input as this is the designed functionality.

It could well be that if you leave the room the presence input remains high and therefore prevents the lights re-activating should you walk back in. This is where the granular aspect of how you live within your house comes in. For me as an example there is a very small likelihood that when the living room is occupied there will be no background sound, either from the TV or conversation. Therefore I can afford my TH paramater to be very low, e.g 180 seconds for me.

The overrun timer on the presence sensor itself will also follow this TH timer meaning the likelihood for me of re-entering the room within this period is very small.

You could also have ‘Rq’ from your lighting controller feeding the ‘R’ input of the presence block to reset this (you would still have to wait for the overrun on the sensor itself).

Finally one of the benefits to the Presence block is the ability to specify multiple meanings to what presence means within a space, so you could still well have the Smart Socket feeding the ‘IAct’ input as a secondary presence source.

Hope this helps.

KR

Hugh

0 Vote Up Vote Down
4 years ago

Hi Hugh,

Thanks for the swift response.

What I’ve done instead is input the Presence Detector Mv output to the Presence block IAct input, and the Vma through a "greater than" comparator to the EAct input. Testing worked as I would like, so I’ll see how I get on with the changes committed to the MiniServer.

Thanks,

Ewan

4 years ago

Hi Ewan, glad to hear.

Good Luck
Hugh

0 Vote Up Vote Down
4 years ago

Hugh,

Your suggestion of using the RQ output from the Lighting Controller to reset the Presence block only works if the light is turned off from a switch. When using the app to turn the light off, RQ doesn’t seem to pulse. I’m having to use the AQs output and when it equals zero, send a pulse to the R input.

Thanks,

Ewan

4 years ago

Hi Ewan

Yes, if you use the app frequently to turn off lights this is an elegant solution.

KR
Hugh