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Related Concept Videos

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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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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WiFi FTM and UWB Characterization for Localization in Construction Sites.

Carlos S Álvarez-Merino1, Emil J Khatib1, Hao Qiang Luo-Chen1

  • 1Telecommunication Research Institute (TELMA), Universidad de Málaga, E.T.S. Ingeniería de Telecomunicación, Bulevar Louis Pasteur 35, 29010 Málaga, Spain.

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Summary
This summary is machine-generated.

Ultra-wide band (UWB) and WiFi Fine Time Measurement (FTM) offer high-precision location services for Industry 4.0. WiFi-FTM shows better penetration in construction environments compared to UWB, especially with concrete structures.

Keywords:
UWBWiFi FTMindoor positioninglocation fusionposition control

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Area of Science:

  • Construction Technology
  • Indoor Positioning Systems
  • Industry 4.0

Background:

  • High-precision location is crucial for Industry 4.0.
  • The construction sector lags in adopting Industry 4.0 technologies.
  • Existing indoor location services face challenges in construction environments.

Purpose of the Study:

  • To evaluate the accuracy and penetration of Ultra-Wide Band (UWB) and WiFi Fine Time Measurement (FTM) in construction settings.
  • To compare the performance of UWB and WiFi-FTM against prior indoor measurements.
  • To assess the benefits of fusing UWB and WiFi-FTM for improved location services in construction.

Main Methods:

  • A measurement campaign was conducted in a real construction environment.
  • UWB and WiFi-FTM systems were deployed and tested.
  • Performance was compared under various conditions, including Line-of-Sight (LOS) and obstructed paths.

Main Results:

  • UWB provides superior ranging accuracy in Line-of-Sight (LOS) conditions.
  • Reinforced concrete significantly impedes UWB signal propagation.
  • WiFi-FTM demonstrates better penetration through structural elements, leveraging openings for location services.
  • Fusion of location technologies showed potential improvements for construction scenarios.

Conclusions:

  • WiFi-FTM is more suitable for challenging construction environments due to its penetration capabilities.
  • UWB's effectiveness is limited by dense concrete structures common in construction.
  • Combining UWB and WiFi-FTM can enhance the reliability and accuracy of high-precision location services in the construction industry.