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Leveling Equipment01:18

Leveling Equipment

As leveling involves measuring vertical distances relative to a horizontal line of sight, it requires a graduated rod, called a level rod, for vertical measurements and an instrument called a level for a horizontal sight line. A level includes a high-powered telescope with a mechanism for leveling to ensure the line of sight is horizontal when the bubble in the spirit level is centered. Leveling rods, made of wood, metal, or fiberglass, are graduated in feet or meters and commonly used in two-...

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相关实验视频

Updated: Jun 29, 2026

Operation of the Collaborative Composite Manufacturing CCM System
10:09

Operation of the Collaborative Composite Manufacturing CCM System

Published on: October 1, 2019

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两阶段标记器检测-定位网络用于架桥机吊装对齐.

Lei Li1, Zelong Xiao1, Taiyang Hu1

  • 1School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

Sensors (Basel, Switzerland)
|September 13, 2025
PubMed
概括

本研究引入了一种新的两阶段网络,用于在复杂的建筑环境中精确检测和定位标记,改进了架桥机器的自动升降对齐.

科学领域:

  • 计算机视觉 计算机视觉
  • 机器人技术 机器人技术 机器人技术
  • 建筑工程工程 建筑工程

背景情况:

  • 建筑环境对自动化系统构成重大挑战,包括照明变化,遮蔽和标记污染.
  • 高精度对齐对于架桥机械的安全和高效的升降操作至关重要.

研究的目的:

  • 开发一个强大而准确的标记器检测和定位网络,用于复杂的建筑环境中的升降对齐.
  • 为了提高桥梁架设机器中自动升降控制的精度和可靠性.

主要方法:

  • 一个两阶段的"粗检测-精细估计"网络,采用动态混合骨干 (DHB) 进行高效的标记区域定位.
  • 一个基于变压器的同谱估计模块,利用多头自我注意力进行精确的对齐.
  • 一个多维数据增强策略,以解决建筑场景中的数据稀缺问题.

主要成果:

  • 实现了97.8%的检测精度 (mAP) 和低于1.2mm的同质估计再投影误差.
  • 演示了32 FPS的处理率,适合实时应用.
  • 与复杂环境中的传统方法相比,显著提高了对齐精度和稳定性.

结论:

  • 拟议的网络有效地克服了复杂的建筑环境中的标记器检测和定位的挑战.
关键词:
变压器同谱估计的估计.架起桥梁的机器对齐方式两个阶段检测定位.

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  • 它提供可靠的技术支持,用于精确控制桥梁架设机器的自动升降操作.
  • 该方法提供了增强的稳定性和精度,为更先进的自动化施工铺平了道路.