Hi, I work for Roobuck PL in Australia.

We are currently launching a new Digital Kiosk-Tagboard solution with optional integrated underground WiFi/BLE tracking + emergency-evac management for Hardrock mines.
Pilot programs will be considered.

We have also just released the world's first CAS (DSRC) IoT Cordless Cap lamp in OT Mine in Mongolia in partnership with Maptek (Australia).

I am open to receive expressions of interest to receive more information about this technology; send to:

davidf@roobuck.com.au
https://www.linkedin.com/in/david-forshaw-660a395/