UWB and IMU Fusion Construction Worker Localization Method Based on Transformer Correction

The localization technology for construction workers is a critical component of construction management. Presently, studies on the localization of construction workers primarily center on ultra-wideband (UWB). This type of method encounters non-line-of-sight (NLOS) issues when faced with the complex environment of construction sites, resulting in the disappearance of worker whereabouts. To better track the real-time location of construction workers, this paper proposes an UWB/inertial measurement unit (IMU) fusion construction worker localization method using Transformer correction. The proposed method relies on IMU localization results and significantly corrects them through the Transformer model. The designed Transformer markedly decreased the error of the IMU, thereby improving localization stability in intricate construction settings. To evaluate the practical performance of the localization method, a location experiment on a construction site was designed, specifically to test the UWB location and the proposed method on the construction site, comparing the effectiveness of the location. The results indicate that the proposed method is more effective in handling signal obstruction compared with existing worker localization methods, enhancing the practicality of worker localization technology.