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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

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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...
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Field Application of Global Positioning System01:28

Field Application of Global Positioning System

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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...
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Errors in Global Positioning System01:26

Errors in Global Positioning System

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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,...
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Introduction to Global Positioning System01:30

Introduction to Global Positioning System

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The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense  for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
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Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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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...
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相关实验视频

Updated: Jun 28, 2025

Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies
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简化室内定位使用蓝牙信标和接收信号强度指纹与智能手表.

Leana Bouse1,2, Scott A King1,2, Tianxing Chu1,3

  • 1Department of Computer Science, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA.

Sensors (Basel, Switzerland)
|April 13, 2024
PubMed
概括

这项研究介绍了一个室内定位系统,使用蓝牙低能耗信标和智能手表. 该系统准确地确定室内位置,为室内定位需求提供低成本,低复杂性的解决方案.

关键词:
蓝牙低能耗 蓝牙低能耗室内定位系统 室内定位系统室内跟踪 室内跟踪移动追踪系统 移动追踪系统智能手表 智能手表

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相关实验视频

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科学领域:

  • 计算机科学 计算机科学
  • 电气工程 电气工程
  • 无处不在的计算无处不在的计算

背景情况:

  • 全球定位系统 (GPS) 由于信号衰减,对室内位置跟踪无效.
  • 精确的室内定位需要替代技术来克服GPS的局限性.
  • 现有的室内定位系统对最终用户来说可能是复杂和昂贵的.

研究的目的:

  • 开发一个低成本,低复杂度的室内定位系统.
  • 为了在用户的室内空间内实现室级位置检测.
  • 通过尽量减少处理需求,使智能手表应用程序的并发使用成为可能.

主要方法:

  • 使用蓝牙低能耗 (BLE) 信标和智能手表蓝牙扫描仪.
  • 实现了本地化最近邻近算法.
  • 应用移动平均线过器来提高结果的准确性.

主要成果:

  • 在三个房间的家庭环境中达到85.9%的准确性.
  • 在五个房间测试时达到92.106%的准确性.
  • 在大多数地区表现出很高的准确性 (超过96%),假阳性集中在过渡区.

结论:

  • 开发的系统为室内定位提供了有效和高效的解决方案.
  • 该系统的低复杂性和处理要求使其易于使用,适合同时使用智能手表.
  • 这种方法为GPS无法使用的室内精确定位提供了切实可行的替代方案.