Hello dear experts, I thank you for the time to read this. I am no technological expert. I wonder if any of you would know what would be needed to develop a human proximity sensor based on matching of similar personal profiles. In other words, people design a personality profile selecting options such as "interests" or "smoker". When another person with a similar profile is close, the sensor alerts. Does anybody know if something like this already exists, or what would be needed to design it? Any inexpensive technology is acceptable.
All ideas are welcomed, and no deep detail description is required.
Thank you for your time!
