PLaTHEA: a marker-less people localization and tracking system for home automation

2014 ◽  
Vol 45 (6) ◽  
pp. 801-835 ◽  
Author(s):  
Francesco Leotta ◽  
Massimo Mecella
Keyword(s):  
Tracking System ◽  
Home Automation ◽  
Localization And Tracking

scholarly journals Unsupervised Learning in RSS-Based DFLT Using an EM Algorithm

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5549
Author(s):  
Ossi Kaltiokallio ◽  
Roland Hostettler ◽  
Hüseyin Yiğitler ◽  
Mikko Valkama
Keyword(s):  
Em Algorithm ◽  
Expectation Maximization ◽  
Tracking System ◽  
Model Parameters ◽  
Calibration Data ◽  
Tracking Accuracy ◽  
Time Period ◽  
The Em Algorithm ◽  
Device Free ◽  
Localization And Tracking

Received signal strength (RSS) changes of static wireless nodes can be used for device-free localization and tracking (DFLT). Most RSS-based DFLT systems require access to calibration data, either RSS measurements from a time period when the area was not occupied by people, or measurements while a person stands in known locations. Such calibration periods can be very expensive in terms of time and effort, making system deployment and maintenance challenging. This paper develops an Expectation-Maximization (EM) algorithm based on Gaussian smoothing for estimating the unknown RSS model parameters, liberating the system from supervised training and calibration periods. To fully use the EM algorithm’s potential, a novel localization-and-tracking system is presented to estimate a target’s arbitrary trajectory. To demonstrate the effectiveness of the proposed approach, it is shown that: (i) the system requires no calibration period; (ii) the EM algorithm improves the accuracy of existing DFLT methods; (iii) it is computationally very efficient; and (iv) the system outperforms a state-of-the-art adaptive DFLT system in terms of tracking accuracy.

scholarly journals Performance Evaluation of a Novel Animals Tracking System based on UHF RFID Technology

2013 ◽  
Vol 9 (1) ◽  
pp. 4 ◽  
Author(s):  
Luca Catarinucci ◽  
Luigi Patrono
Keyword(s):  
Radio Frequency Identification ◽  
Tracking System ◽  
Near Field ◽  
Uhf Rfid ◽  
Wide Range ◽  
Frequency Identification ◽  
Set Up ◽  
Received Signal Strength Indication ◽  
Localization And Tracking ◽  
Localization Data

The adoption of solutions based on Radio Frequency IDentification technology in a wide range of contexts is a matter of fact. In many situations, such as the tracking of small-size living animals, the straightforward use of commercial systems does not ensure adequate performance. Consequently, both the RFID hardware and the software control platform should be tailored for the particular application. In this work, the specific requirements of Near Field Ultra High Frequency RFID reader antennas suitable for small-size animal localization and tracking are identified and a control system in a LabVIEW environment is designed. Afterwards, both hardware and software solutions have been implemented and validated. In particular, an algorithm based on the measured Received Signal Strength Indication, in order to obtain precise localization data, was developed and validated. Finally, the set-up of a first working prototype involving built-in-lab reader antennas has been completed and tested. The achieved results prove the effectiveness of the proposed tracking system.

SU-FF-J-93: Dosimetric Feasibility of Patient-Specific Margins for Prostate Patients Using a Wireless Localization and Tracking System

2009 ◽  
Vol 36 (6Part7) ◽  
pp. 2497-2497
Author(s):  
P Rassiah-Szegedi ◽  
B Wang ◽  
J Tward ◽  
M Szegedi ◽  
H Zhao ◽  
...  
Keyword(s):  
Tracking System ◽  
Patient Specific ◽  
Wireless Localization ◽  
Localization And Tracking

scholarly journals A 50 Gb/s Transparent Indoor Optical Wireless Communications Link With an Integrated Localization and Tracking System

2016 ◽  
Vol 34 (10) ◽  
pp. 2510-2517 ◽  
Author(s):  
Ariel Gomez ◽  
Kai Shi ◽  
Crisanto Quintana ◽  
Grahame Faulkner ◽  
Benn C. Thomsen ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Tracking System ◽  
Optical Wireless ◽  
Optical Wireless Communications ◽  
Localization And Tracking
Sign in / Sign up

Export Citation Format

Share Document