GPS changed the world — but it was designed for open skies, not hospital basements, automated warehouses, or IoT sensors running on micro-batteries. A look at opportunistic localization: how Wi-Fi, Bluetooth, magnetic fingerprinting, and inertial navigation are quietly replacing satellites in the places that matter most.

Digital tools in the field are already a reality: discover the data from our AGROS project survey. We listened to the land to design the future.