ᐅ Which Sensors for What? Inspiration

Damn, did someone not read my post.
My question was, how do you manage closing the window/door after going outside.
I don’t understand why this is being made fun of.
There definitely is more to it. The question is how to solve it when the “more” isn’t available. You seem to leave that open. So all good and the question about your solution is answered. But I don’t want to believe that this is the only one. See idea with PM further up.

In the worst case, open via mobile device
You need monitoring for the locking mechanism. This way, you can differentiate between closed and locked.

rick2018 schrieb:

In the worst case, open it using a mobile device.
You need monitoring for the locking mechanism. That way, you can tell the difference between closed and locked.

That's right, with a small logic unit or a small object server, that should work perfectly.
Thanks for the input!
Now that's what I call constructive. Thanks for that.

Tarnari schrieb:

Damn, did someone not read my post.
My question was, how do you handle closing the window/door after going outside?

Apparently, I developed a spontaneous cognitive lapse today. Didn’t I answer that exactly? Closed does not mean locked, and therefore the actuator channel is blocked!? That’s also exactly what Rick wrote afterwards. You need something to differentiate between "closed" and "locked." And in my opinion, reliably detecting "locked" only works with a sensor at the correct position—not just by logic alone when you only have sensors for open or tilted. Because that way, you don’t detect the latch position. The position of the handle could be detected, as I already mentioned, using EnOcean handles. That would be somewhat helpful and could enable this kind of detection in combination with sensors for the closed state.

If you don’t have that, you need to determine whether someone is outside or inside. You could use a motion detector for that, but then there is a high risk that the neighbor’s big cat will regularly trigger your blinds. I do have one more idea… a hidden button somewhere that raises the blinds via a binary input. If there are KNX switches outside, you might be able to rig something with multiple presses or combinations.

If this still doesn’t relate to the topic, I’ll head straight to bed.

untergasse43 schrieb:

Apparently, I developed a spontaneous cognitive lapse today. Isn't that exactly what I responded to? "Closed" does not mean "locked," and therefore the actuator channel is blocked!? That is also precisely what Rick wrote afterwards. You need something to differentiate between "closed" and "locked." In my opinion, reliably detecting "locked" is only possible with a contact at the correct position and not just through logic if you only have contacts for open or tilted states. The locking position cannot be captured that way. The handle position could be detected, as I also mentioned, with EnOcean handles. That would be somewhat helpful and, combined with contacts for the closed state, could enable such detection.

If you don’t have that, you have to know whether someone is outside or inside. You could use a presence detector, but then there is a high risk that the big neighbor’s cat will regularly stop your blinds. I still have one idea… a hidden push button somewhere that raises the blinds via a binary input. If there are KNX push buttons outside, you could possibly DIY something using multiple presses or combinations.

If I’m still missing the point, I’m going straight to bed.

No, all good. That’s exactly what I’d like to hear.
How exactly do you handle this situation? If I interpret your statements correctly, you have reed contacts and automatic shading. Do you have a lock detection or not? If yes, then everything is clear on your side. If not, how do you prevent this situation?

One more time

Tarnari schrieb:

How exactly do you handle this situation? If I interpret your statements correctly, you have reed contacts and automatic shading. Do you have window lock detection or not? If yes, then your case is clear.

untergasse43 schrieb:

I already wrote: window open (not tilted, not ajar, nothing else): blinds locked. Window tilted and blinds down with slats closed: slats open. If someone locks the window from inside, blinds unlocked. That’s all there is.

Yes, I have window lock detection.

Tarnari schrieb:

If not, how do you prevent the situation?

The situation does not occur for me, but here are some ideas in case you possibly forget your smartphone inside:

untergasse43 schrieb:

The handle position could be detected, as already mentioned, with EnOcean handles. That would be partially helpful and could enable such detection in combination with contacts for the closed state.

If you don’t have that, you have to detect whether someone is outside or inside. You could use a presence detector, but there is a high risk that the neighborhood’s large cat regularly locks your blinds for you. One more idea... a hidden button somewhere that raises the blinds via a binary input. If there are KNX buttons outside, you might be able to do something with multiple presses or combinations.

And now one more idea, which is my emergency solution: walk around the house and enter through the front door (opened with a fingerprint reader).