I am thinking about an issue where I already collected a lot of ideas but somehow none of these really satisfies me.
The problem:
I have a 4m long corridor where I have a LED stripe attached to the ceiling. I can control every single LED of this stripe seperately.
If a persons moves around inside this corridor I want to lighten up the LEDs which are directly above the person.
Therefore I have to know the position of the person.
But of course the corridor is not necessarily completely empty... just like a hallway in your home. There is also the possibility of having more than one person in this area. Then, of course, both persons should be enlighted.
Before I tell you everything I have already thought about I would like to know what you guys think. Maybe I can combine your thoughts with mine to get new ideas.
@Idahowalker I really like this idea, but I am not used to machine learning so far.
@jremington also a really nice idea. I checked this sensor but one is around 12€ (it was the cheapest I could find on ebay).
Also I wonder about the logic behind. What temperature do you get when you aim for a dressed person? But let's say it will be something around 30°C. That is a temperatur you can get as ambient temperature as well. I mean there might be some corner cases where it is really hard to detect a person moving around. What do you think?
Buy one, try it and see. You would look for temperature increases, keeping in mind that a person's head will be much warmer than the clothed body. There are several types of "room occupancy sensors" (or "presence") based on this idea.
A cheaper option is beam break sensors, with source and emitter on either side of the corridor.
Whatever you choose, this is not a particularly simple and easy project. The long sensor and control wires lead to serious problems with electrical noise and reliability.