Recently, along with our partners Gestocomm (Czech Republic) and Hypha (Australia), we demonstrated our Thesia indoor tracking solution, in a Fire and Rescue facility outside Prague, Czech Republic.
The tracker records locally to the device, and can also feed live (via our radios), the position of the user throughout their track, it records elvation as well as everwhere the user goes. The tracker does not use GPS.
The facility was a an old WWII communication center in the buildings basement, that is now used for firefighter training. It was a great test for both the tracker, and our radios as it was solid walls, with a long corridor with lots of rooms and corridors off. The biggest challenge was the entry to the basement due to angle stairs, and angles and the start of the corridor, but good placement of radios solved this.
We had two firefighters equipped, each with a PTT radio, and the tracker, our mesh network providing the data transfer for the tracker. They did multiple trips in to the basement, as well as some tests outside. They did normal walking, as well as crawling simulating sceanrios they face day to day.
They were very impressed with the results, beating any similar solutions they have tried before.