Evaluation of Different UWB Tag Placements on Construction Workers for Enhancing Safety

Abstract: Ultra-wideband (UWB) technology, offering high precision and low latency, emerges as a solution for accurate worker tracking to improve construction safety. However, non-line of sight (NLOS) conditions can impact its reliability. This study evaluates UWB tag placements on different body parts in a controlled walking experiment. Data from six participants were analyzed using t-Tests for accuracy and F-tests for consistency across different axes. Results show that head-mounted tags provide the highest accuracy, while tags attached around shoulders, waist, and knees deviate due to body shadowing. Findings emphasize the importance of optimal sensor placement for real-time worker tracking in construction.