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A Disembarking Notification System in Public City Buses using Smart Device and High Frequency

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2020, 25(8), pp.55-63
  • DOI : 10.9708/jksci.2020.25.08.055
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : July 30, 2020
  • Accepted : August 20, 2020
  • Published : August 31, 2020

Myoungbeom Chung 1

1성결대학교

Accredited

ABSTRACT

Recently, people have come to enjoy using movies and music applications, such as YouTube, Netflix, and Watcha Play, on their smart devices while riding public transportation. However, they sometimes miss their destination stations because of these activities. Therefore, in this paper, we propose a disembarking notification system for public city buses using smart devices and high frequencies generated via the buses’ speakers. The high frequencies are generated by the public buses’ station information broadcasters. Smart devices then analyze the high-frequency signals with their inner microphones, and the proposed application displays a disembarking notification to the user when the user’s destination or stop-over station’s signal is the same. To evaluate this system’s performance, we tested 1,000 real-time disembarking notifications, and the test results showed 98.9% accuracy. Moreover, we compared these results to those using only OpenAPI, and our proposed system featured far better outcomes. Thus, this proposed notification system can prove a useful technology for many people who often use public city buses, as it can notify specific users of their destination stations. Furthermore, this system will become innovative technology for global public transportation by informing users of their desired stations using speakers.

Citation status

* References for papers published after 2022 are currently being built.

This paper was written with support from the National Research Foundation of Korea.