A Low-Cost Collaborative Indoor Localization System Based on Smartphone Platform

Xiaoyuan Liang, Guiling Wang, Zhu Han

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

While GPS has been well served in outdoor localization for a long time, the indoor localization is still an open challenge in both academia and industry. To solve the indoor localization problem, we propose a novel and low-cost system, named Collaborative Indoor Localization System (CILS), using sound as the medium to localize smartphones. The proposed CILS is composed of three parts, smartphones, sound sources and a server. The sound sources are fixed at known positions and repeatedly generate sound, which can be any existing sound generators, such as a ringing bell or electrical elevator. The smartphones distinguish the sound periods from noise in the recorded signals from microphones using statistical features and upload the sound periods to the server with timestamps. The server collects all smartphones' recorded sound and detects every sound period's source by a Hidden Markov Model (HMM) and a Gaussian Mixture Model (GMM). The server calculates every pair of smartphones' positions together using the time difference of signals' arrivals from the same sound source. The system is implemented in the Android system and tested in different indoor scenarios. It is shown that the CILS can achieve a high accuracy of localization via extensive experiments.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE 2018 International Congress on Cybermatics
Subtitle of host publication2018 IEEE Conferences on Internet of Things, Green Computing and Communications, Cyber, Physical and Social Computing, Smart Data, Blockchain, Computer and Information Technology, iThings/GreenCom/CPSCom/SmartData/Blockchain/CIT 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages404-411
Number of pages8
ISBN (Electronic)9781538679753
DOIs
StatePublished - Jul 2018
Event11th IEEE International Congress on Conferences on Internet of Things, 14th IEEE International Conference on Green Computing and Communications, 11th IEEE International Conference on Cyber, Physical and Social Computing, 4th IEEE International Conference on Smart Data, 1st IEEE International Conference on Blockchain and 18th IEEE International Conference on Computer and Information Technology, iThings/GreenCom/CPSCom/SmartData/Blockchain/CIT 2018 - Halifax, Canada
Duration: Jul 30 2018Aug 3 2018

Publication series

NameProceedings - IEEE 2018 International Congress on Cybermatics: 2018 IEEE Conferences on Internet of Things, Green Computing and Communications, Cyber, Physical and Social Computing, Smart Data, Blockchain, Computer and Information Technology, iThings/GreenCom/CPSCom/SmartData/Blockchain/CIT 2018

Conference

Conference11th IEEE International Congress on Conferences on Internet of Things, 14th IEEE International Conference on Green Computing and Communications, 11th IEEE International Conference on Cyber, Physical and Social Computing, 4th IEEE International Conference on Smart Data, 1st IEEE International Conference on Blockchain and 18th IEEE International Conference on Computer and Information Technology, iThings/GreenCom/CPSCom/SmartData/Blockchain/CIT 2018
CountryCanada
CityHalifax
Period7/30/188/3/18

All Science Journal Classification (ASJC) codes

  • Business, Management and Accounting (miscellaneous)
  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture
  • Information Systems and Management
  • Health Informatics
  • Communication

Keywords

  • GMM
  • HMM
  • Indoor localization
  • smartphones
  • sound

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