Related Experiment Video
Updated: Mar 25, 2026
04:13
Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
Published on: February 8, 2019
7.3K
BlueDetect: An iBeacon-Enabled Scheme for Accurate and Energy-Efficient Indoor-Outdoor Detection and Seamless
Han Zou1, Hao Jiang2, Yiwen Luo3
1School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore 639798, Singapore. zouh0005@ntu.edu.sg.
Sensors (Basel, Switzerland)
|February 25, 2016
Summary
BlueDetect accurately determines indoor-outdoor (IO) location using low-power Bluetooth, enabling energy-efficient mobile services. This scheme optimizes sensor usage, reducing power consumption for seamless location-based services (LBS).
Area of Science:
- Mobile computing
- Ubiquitous computing
- Sensor networks
Background:
- Accurate indoor-outdoor (IO) detection is crucial for location-based services (LBS) and building management systems (BMS).
- Mobile devices offer a flexible platform for IO detection, but power-hungry sensors like GPS and WiFi limit battery life.
- Existing solutions struggle with energy efficiency and seamless operation, especially in semi-outdoor environments.
Purpose of the Study:
- To propose BlueDetect, an accurate, fast, and energy-efficient scheme for IO detection on mobile devices.
- To leverage low-power iBeacon technology and optimize the use of power-hungry sensors.
- To enable seamless LBS and positioning, particularly in challenging semi-outdoor environments.
Main Methods:
- Developed BlueDetect, a scheme utilizing on-board Bluetooth and novel algorithms for IO detection.
- Implemented smart activation/deactivation of power-hungry sensors (GPS, WiFi) based on IO status.
- Prototyped BlueDetect on Android devices for comprehensive performance evaluation.
Main Results:
- BlueDetect demonstrated superior accuracy in IO detection compared to existing methods.
- The scheme significantly reduced mobile device power consumption by optimizing sensor usage.
- Accurate localization and navigation were achieved, especially in semi-outdoor settings.
Conclusions:
- BlueDetect offers an effective and energy-efficient solution for mobile IO detection and LBS.
- The system intelligently manages sensors, enhancing user experience and battery life.
- BlueDetect provides a robust platform for seamless positioning and navigation across diverse environments.
Related Concept Videos
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
449
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...
449
01:28Field Application of Global Positioning System
363
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...
363
01:30Types of Global Positioning System Surveys
427
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...
427
01:26Errors in Global Positioning System
404
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,...
404
01:30Electronic Distance Measuring Instruments
662
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
662
01:30Introduction to Global Positioning System
708
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,...
708