The low power, cheap model, would use bluetooth and wifi. But you might want some corporate partnerships so that you'd have plenty of readers scattered around. Those have such short distance ability, that that one might consider a different frequency with more distance....
Or even put in a mobile phone chip, but that raises the cost a lot. (but removes the need for corporate partnerships because that would just work. It could phone someone)
If you can get them to wear a collar, there is this : https://5bestcompared.com/best-gps-tracker-pet/?utm_source=bing&utm_medium=cpc&utm_id=521360351&utm_content=1315018305583890&utm_term=pet%20gps%20locator&creativeId=&gclid=&msclkid=729b71a4f66219adc01a16ba0c98e870
or this:
https://www.consumerreports.org/electronics-computers/gps-pet-trackers/best-gps-pet-trackers-a1117406199/
We really should do more of this for Alzheimer’s patients.
I think it would work, but ...
The low power, cheap model, would use bluetooth and wifi. But you might want some corporate partnerships so that you'd have plenty of readers scattered around. Those have such short distance ability, that that one might consider a different frequency with more distance....
Or even put in a mobile phone chip, but that raises the cost a lot. (but removes the need for corporate partnerships because that would just work. It could phone someone)