Location in the house?

Question

Arduino

I am very worried about this task, perhaps I will not explain it very well.

There are squares shown in the picture. Red indicates the sensors that can be installed. There is a radio transmitter that has its own ID. Either the transmitter is constantly transmitting the ID, or the sensors are polling.
The task is to transmit the beacon ID and the number of the square where it is located from the sensors.
I hope I managed to convey what is needed.
I would be grateful for any information and tips. Thank you.

Answer 1

Well, what's the problem then? Let the sensor have its own ID in each room. And the signal strength should be such that it finishes only in this room. Well, then either the sensor sends its ID to the beacon and the beacon responds to it, or the beacon sends its own to the sensor, and then the sensor that caught the signal from the beacon transmits its location.
If there are several sensors, then it is possible to triangulate by signal strength.

Answer 2

You can try to determine the position by wifi. Three or four access points are enough, and a client sending samples / scanning the air. Aruba, Cisco can do this either out of the box or with the help of external compliance. Something similar can probably be scripted using openwrt. The only question is the required frequency of data updates and the size of the room

Answer 3

I remember that an article about a smart home slipped through, where the presence of residents was determined by the included bluetooth on the phone.

Answer 4

Will a motion sensor work?
en.wikipedia.org/wiki/Passive_infrared_sensor
There are semi-finished solutions in the form of sensors for $1-$2 that can be connected to a microcontroller or a computer.