Positioning precision analysis of passive phased array radar localization for construction safety monitoring in a non-line-of-sight environment via heatmap

Abstract

A positioning system for complex construction scenarios is necessary to apply due to the limitations of the traditional positioning system in a non-line-of-sight (NLOS) environment, in order to study the impact of obstacles on construction sites. A quantitative measurement experiment of positioning precision in an NLOS environment was conducted in a petrochemical construction site, and a large number of engineering data were obtained, which showed the feasibility of a Passive Phased Array Radar - Bluetooth Hybrid Positioning System (PPAR-B HPS). The novelty of this paper is to propose a simplified signal coverage model for rapid measurement via the analysis of on-site data of the petrochemical industry and analyze the factors affecting the positioning precision in NLOS environment via a positioning precision heatmap analysis method to promoting the development and application of positioning technology in construction sites. The effectiveness of these methods are proved by empirical and comparative research.