New installation - heating, presence and pets

[chris_j_hunter]

>well sensorised house ...

just wondering how far to take this (and hoping Idratek's lead-times are currently not too extended) - ie: reed-switches on every door, pressure-mats in many places (where people sit, enter, leave, stand to do things) ...

and how to use push-buttons & switches - we've used them to switch lights on & off but, now we have HA, maybe the ones by the door would be better used to say we're coming-into or going-out of a room or space, and intend to say or not come-back, and the one's used to raise or lower lighting levels would be better placed by the sofa ?

and cupboard doors, too, should they have reed-switches ?

how many PIRs & reed-switches would be too many ?

[chris_j_hunter]

>face detect ...

'wonder if movement detect might be more useful - and how distinguishable from noise significant movements might be (false-alarm avoidance) ?

[Gangsta]

>face ...

interesting ... but why, what for ? And, wouldn't anyone who wasn't supposed to be about be wearing some sort of cover - hood, balaclava, whatever ? And face detection in a normal camera situation might be quite a bit different in terms of context - ie: a much more constrained situation, allowing perhaps a better chance of avoiding false indications ?

well if your sitting still in a room, your face doesnt just dissapear. Therefore if a face is within the field of view the room is 'occupied', used in conjunction with a pir could make quite a good occupancy sensor

[chris_j_hunter]

well, give it a go - good luck !

wonder what's used in cars, to sense seat occupation - ours seem to work quite well (seat-belt warning etc) - 'temping to think of trying such a thing, too ...

as I think Karam said, having a range of sensors might be good ...

[alldone]

Face detection +/- PIR would be the ultimate pet tolerant detector ... unless, of course, your pet looks too much like you.

[toscal]

I did think about a beam grid system once,may have mentioned it on here somewhere else. So you get kind of a grid reference of where you are in a room. You could put a PIR in each corner of the room and depending on which order they are triggered in will give you some idea of where abouts in the room someone is.
RFid tags can still be useful. But not that easy to set up. Unless you are rewiring the house. Plus you need to carry the tag with you.
Like many things I think its a combination of things that will work best. And some rooms may require a different approach compared to other rooms in a house for presence detection.

[chris_j_hunter]

continuing the diversity theme, 'thought seat sensors would be easy to find, but these were all some Googling brought to light :

http://www.hale.at/en/products/seat-sensors.html

another option might be temperature sensors, 'though lags might then be a problem ...