UWB

RTLS-grade UWB positioning is not “magic accuracy”—it is time measurement plus geometry plus clock discipline. Your best-case accuracy is set by anchor geometry (angles and visibility), while your worst-case accuracy is dominated by NLOS/multipath and time synchronization drift.<br /> <br /> If a deployment looks inconsistent, debug in this order: (1) anchor geometry and “anchors-in-view” count, (2) NLOS sources and first-path visibility, (3) time sync stability across anchors, then (4) update rate/filtering and coordinate calibration.

Industrial RTLS projects fail when teams compare technologies by “accuracy” alone. The real question is where each technology stops being reliable for your required operational events (zone entry/exit, proximity risk, dispatch timing, route compliance).<br /> <br /> Use UWB for deterministic indoor events and safety-critical proximity; use GPS RTK for outdoor yards and wide-area coverage; use BLE when your requirement is zone/presence visibility and ultra-low tag power. The best deployments draw a clear technology boundary and define testable acceptance criteria per boundary.