1Li H, Chan G, Huang T, et al. Chirp-spread-spectrum-based real time location system for construction safety management: A case study [J] . Automation in Construction, 2015 (55): 58-65.
4Wan W, Yu J Q, Zhao J P. The Research of Highway Construc- tion Safety Management Based on Fuzzy Evaluation [ J ]. Ap- plied Mechanics & Materials, 2015 (737) : 446-451.