Real-time outdoor & indoor personal tracking (A solution integrated to Helmet). Fixposition’s OEM board, built into the helmet, delivers seamless real-time tracking of position and orientation indoors and outdoors. ------ Surveying and mapping face a critical challenge: achieving precise positioning where GNSS signals are weak or blocked. Urban canyons, forest canopies, tunnels, and construction sites often degrade RTK-GNSS performance, making centimeter-level accuracy difficult in the very envi