I am trying to detect how often 2 animals 'interact'. Say I have 4 cats, I am trying to work out how often each of the cats interact with each other.
I have considered using RFID tags attached to their collars. Ideally this would mean that every time each cat came close to another cat each tag would 'see' each other and that count would be recorded. So for example over the course of a week I would be able to see how many 'counts' each cat had with any other. Is this possible with RFID or is there another technology to do this I am unaware of.
Thanks in advance.