Ultra-wideband (UWB) safety monitoring uses small radio tags worn by people and mounted on forklifts, which measure the distance between each other from the timing of short radio pulses. Because the signal passes around racking and through gaps where a camera has no view, UWB can warn an operator and a pedestrian before either can see the other. The same tags can locate people and trucks for a real-time location system (RTLS), trigger zone rules and, on compatible forklifts, feed a speed-control interface that slows the truck. Its main limit is that it protects only people wearing a working tag.
The full comparison is Forklift proximity detection technologies compared, which sets UWB beside RFID, camera, radar and LiDAR. UWB is usually chosen for blind corners, dense racking and mixed traffic where line of sight is broken.
Before buying, check tag battery life and charging routines, how visitors and contractors get tags, how the system logs close approaches for review, and whether warning distances can be set by zone so alerts do not fire constantly in narrow aisles. Accuracy claims vary by supplier and site, so measure results in your own building during a pilot. OSHA 1910.178 does not require UWB or any other detection system.