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Field Application of Global Positioning System01:28

Field Application of Global Positioning System

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...
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

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 served as...
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

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,...
Types of Global Positioning System Surveys01:30

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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...
Errors in Global Positioning System01:26

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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,...
Selected Data About Geographic Locations01:25

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Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...

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Related Experiment Video

Updated: May 14, 2026

An Application for Pairing with Wearable Devices to Monitor Personal Health Status
06:58

An Application for Pairing with Wearable Devices to Monitor Personal Health Status

Published on: February 3, 2022

Location and activity tracking with the cloud.

Taj Morton1, Alex Weeks, Samuel House

  • 1School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97330, USA. mortont@onid.orst.edu

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|February 1, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a wearable sensor prototype for real-time monitoring of elderly individuals at home. This technology supports independent living and enables early disease detection, reducing healthcare costs.

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Area of Science:

  • Gerontology
  • Biomedical Engineering
  • Health Informatics

Background:

  • Aging population necessitates innovative solutions for independent living.
  • Continuous monitoring of elderly individuals is crucial for timely healthcare interventions.
  • Activity, gait velocity, movement, and location are key biomarkers for healthy aging.

Purpose of the Study:

  • To develop and present a prototype for real-time monitoring of elderly adults in their homes.
  • To establish a foundation for future products and services aiding independent living and early disease diagnosis.
  • To explore the potential of integrated wearable sensors and cloud-based data processing for elder care.

Main Methods:

  • Integration of a wearable location-tracking sensor with cloud-based data processing.
  • Development of a vertically-integrated prototype for simultaneous real-time tracking and analysis.
  • Utilizing critical biomarkers such as activity, gait velocity, movement, and location for monitoring.

Main Results:

  • A functional prototype enabling real-time tracking and analysis of multiple individuals.
  • Demonstration of a basic infrastructure for advanced elder care solutions.
  • Potential for simultaneous monitoring and analysis of a large cohort.

Conclusions:

  • The developed prototype offers a viable infrastructure for remote elderly monitoring.
  • Real-time data analysis can facilitate early disease diagnosis and intervention.
  • This technology supports the goal of enabling elderly individuals to live independently for longer.