scholarly journals A real-time robust indoor tracking system in smartphones

2018 ◽  
Vol 117 ◽  
pp. 104-115 ◽  
Author(s):  
José Luis Carrera V. ◽  
Zhongliang Zhao ◽  
Torsten Braun ◽  
Zan Li ◽  
Augusto Neto
Keyword(s):  
Real Time ◽  
Tracking System ◽  
Indoor Tracking

scholarly journals Advanced Real-Time Indoor Tracking Based on the Viterbi Algorithm and Semantic Data

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Jens Trogh ◽  
David Plets ◽  
Luc Martens ◽  
Wout Joseph
Keyword(s):  
Real Time ◽  
Viterbi Algorithm ◽  
Tracking System ◽  
Motion Model ◽  
Node Density ◽  
Semantic Data ◽  
Starting Point ◽  
The Mean ◽  
Indoor Tracking ◽  
Radio Map

A real-time indoor tracking system based on the Viterbi algorithm is developed. This Viterbi principle is used in combination with semantic data to improve the accuracy, that is, the environment of the object that is being tracked and a motion model. The starting point is a fingerprinting technique for which an advanced network planner is used to automatically construct the radio map, avoiding a time consuming measurement campaign. The developed algorithm was verified with simulations and with experiments in a building-wide testbed for sensor experiments, where a median accuracy below 2 m was obtained. Compared to a reference algorithm without Viterbi or semantic data, the results indicated a significant improvement: the mean accuracy and standard deviation improved by, respectively, 26.1% and 65.3%. Thereafter a sensitivity analysis was conducted to estimate the influence of node density, grid size, memory usage, and semantic data on the performance.

A Dynamic HMM-based Real-time Location Tracking System Utilizing UHF Passive RFID

2021 ◽  
pp. 1-1
Author(s):  
Bijoy Dripta Barua Chowdhury ◽  
Sara Masoud ◽  
Young-Jun Son ◽  
Chieri Kubota ◽  
Russell Tronstad
Keyword(s):  
Real Time ◽  
Tracking System ◽  
Location Tracking ◽  
Passive Rfid
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