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相关概念视频

Field Application of Global Positioning System01:28

Field Application of Global Positioning System

38
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
38
Errors in Global Positioning System01:26

Errors in Global Positioning System

38
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
38
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

24
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
24
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

50
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
50

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相关实验视频

Updated: Jun 9, 2025

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
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基于超声波阵列的多源融合室内定位技术

Cong Li1, Chenning Zhang2, Bing Chen3

  • 1National Key Laboratory of Science and Technology on Space Microwave, Xi'an 710100, China.

Sensors (Basel, Switzerland)
|October 26, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种使用蓝牙和超声波阵列的新型室内定位系统,用于在地下矿山中精确定位. 该系统达到厘米级准确度,提高了自动化采矿操作的安全性.

关键词:
这是GDOP的GDOP.这是一个TDoA.室内定位装置 室内定位装置定位准确度 定位准确度 定位准确度超声波超声波超声波的使用方法

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科学领域:

  • 机器人和自动化 机器人和自动化
  • 地理空间技术是什么
  • 采矿工程 采矿工程 采矿工程

背景情况:

  • 由于环境危害,地下采矿存在重大安全风险.
  • 缺乏可靠的定位系统阻碍了地下环境中的自动化和工人安全.
  • 在地下矿山中,基于卫星的导航是无效的.

研究的目的:

  • 开发用于地下采矿的高精度室内定位系统.
  • 提高自动化采矿操作的安全性和效率.
  • 克服卫星定位在地下环境中的局限性.

主要方法:

  • 集成蓝牙用于粗放定位和超声波阵列用于精细校准.
  • 实施了改进的多发射器多接收器算法与超声波接收器阵列.
  • 整合精度的几何稀释 (GDOP) 分析以优化网络.
  • 集成一个惯性导航模块来跟踪物体的姿势和轨迹.

主要成果:

  • 拟议的室内定位系统实现了在10厘米内的定位精度.
  • 与传统方法相比,该系统的错误率降低了20%.
  • 开发的算法能够在复杂的采矿环境中准确地定位.

结论:

  • 开发的高精度室内定位系统对地下采矿应用非常有益.
  • 这项技术可以显著提高自动化采矿的安全性和运营效率.
  • 该系统提供了一个强大的解决方案,用于在没有GPS的地下环境中进行导航.