优化UWB基站部署用于地下施工中的成型脚手架,通过半控制的实地实验来实现次米定位准确度
Gang Yao1,2, Lang Liu1,2, Yang Yang1,2
1School of Civil Engineering, Chongqing University, Chongqing 400045, China.
Sensors (Basel, Switzerland)
|February 27, 2026
概括
在金属丰富的地下建筑支架中优化超宽带 (UWB) 位放置可以提高3D定位的准确性. 适当的高度和间距可以实现次米准确度,这对于工人安全系统至关重要.
科学领域:
- 建筑安全工程工程 建筑安全工程
- 无线定位系统无线定位系统
- 地理空间数据科学数据科学
背景情况:
- 地下建筑中的高空落事件与型脚手架操作有关.
- 脚手架中的密集钢结构会造成显著的非视线 (NLOS) 和多路干扰,降低定位精度.
- 超宽带 (UWB) 技术在这些具有挑战性的环境中的性能需要特定的部署优化.
研究的目的:
- 调查和量化物理部署参数对UWB定位准确度在制脚手架环境中的影响.
- 优化高度和水平间距,以提高3D定位性能.
- 建立一个静态错误模型,用于UWB系统的脚手架密集型建筑.
主要方法:
- 为了实现现实的测试,建造了一个全尺寸的成型架.
- 一个逐步的,一个因素控制的实验设计被用来改变高度 (H) 和水平间距 (S).
- 使用根平均平方误差 (RMSE) 和单轴误差分析量化了3D定位精度.
主要成果:
- 通过优化部署,实现了次计定位精度,达到0.317m的最小3D RMSE.
- 超过80%的单轴错误在0.2米的工程有效范围内.
- 最佳水平间距 (S=1.5 m) 与脚手架网格大小,平衡信号可见性和多路径效应相关.
结论:
- 物理部署优化,而不是算法解决方案,是UWB定位在金属丰富的支架的关键.
- 这些发现为开发复杂建筑环境中的实时安全监控系统提供了基础.
- 位置精度稀释 (PDOP) 不是共平面UWB部署中实际定位错误的可靠预测器.
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