Instead of GPS coordinates, some offices and schools have deployed Bluetooth beacons and wireless access points to track people as they move around.

The technology can collect as many as 6,000 data points per day per person, which suggests that location can be pinpointed down to just a few feet. Kontakt.io’s Bluetooth Card Beacon is used as a traditional security access card, and it also tracks employee movement throughout an office.

Card beacon technology can also be used to automatically recognize when an employee has left their desk and activate a computer’s screensaver, or to automatically customize meeting room temperatures.

Tracking systems, combined with other A.I. systems, can assign people scores. For example, Toronto-based GAO Group developed a system that monitors location and predicts safety, develops better workflow optimization and monitors employee productivity.

On college campuses, SpotterEDU has deployed its Bluetooth technology to 40 schools in the U.S., including Indiana University and Columbia University. Proximity recognition technology might track a student who is habitually late for class and doesn’t visit the library enough—they could be labeled as “high risk” for dropping out.