A Localization System for GPS-free Navigation Scenarios

  • Jiazhi Ni
  • , Xin Zhang
  • , Beihong Jin*
  • , Fusang Zhang
  • , Xin Li
  • , Qiang Huang
  • , Pengsen Wang
  • , Xiang Li
  • , Ning Xiao
  • , Youchen Wang
  • , Chang Liu
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Localization is crucial to mobile navigation, which mainly depends on satellite navigation systems such as GPS. Unfortunately, sometimes GPS localization might be missing due to hardware failure or the urban canyon effect. Network localization is a promising way to improve localization experience for users under these conditions. However, there has not been any report on the large-scale applications of network localization methods to GPS-free outdoor scenarios. In this paper, we describe the challenges and build a novel navigation fingerprint based localization system, which fuses road network information and Wi-Fi signals scanned outdoors. With large amount of navigation trajectories as supervised information, we train a ranking model to obtain a reasonable metric for localization. The localization system has been deployed in Tencent Map, improving navigation accuracy in GPS-free outdoor scenarios for 1.6 million users.

Original languageEnglish
Title of host publicationDatabase Systems for Advanced Applications - 27th International Conference, DASFAA 2022, Proceedings
EditorsArnab Bhattacharya, Janice Lee Mong Li, Divyakant Agrawal, P. Krishna Reddy, Mukesh Mohania, Anirban Mondal, Vikram Goyal, Rage Uday Kiran
PublisherSpringer Science and Business Media Deutschland GmbH
Pages268-273
Number of pages6
ISBN (Print)9783031001222
DOIs
StatePublished - 2022
Externally publishedYes
Event27th International Conference on Database Systems for Advanced Applications, DASFAA 2022 - Virtual, Online
Duration: 11 Apr 202214 Apr 2022

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13245 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference27th International Conference on Database Systems for Advanced Applications, DASFAA 2022
CityVirtual, Online
Period11/04/2214/04/22

Keywords

  • Mobile navigation
  • Network localization
  • Road network

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