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User Density Estimation System at Closed Space using High Frequency and Smart device

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2017, 22(11), pp.49-55
  • DOI : 10.9708/jksci.2017.22.11.049
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : September 13, 2017
  • Accepted : October 28, 2017
  • Published : November 30, 2017

Myoungbeom Chung 1

1성결대학교

Accredited

ABSTRACT

Recently, for safety of people, there are proposed so many technologies which detect density of people at the specific place or space. The representative technology for crowd density estimation was using image analysis method from CCTV images. However, this method had a weakness which could not be used and which’s accuracy was lower at the dark or smog space. Therefore, in this paper, to solve this problem, we proposed a user density estimation system at closed space using high frequency and smart device. The system send inaudible high frequencies to smart devices and it count the smart devices which detect the high frequencies on the space. We tested real-time user density with the proposed system and ten smart devices to evaluate performance. According to the testing results, we confirmed that the proposed system’s accuracy was 95% and it was very useful. Thus, because the proposed system could estimate about user density at specific space exactly, it could be useful technology for safety of people and measurement of space use state at indoor space.

Citation status

* References for papers published after 2023 are currently being built.

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