Sound Signal-based Attendance System for Preventing Unauthorized Attendance 


Vol. 14,  No. 5, pp. 305-311, May  2025
https://doi.org/10.3745/TKIPS.2025.14.5.305


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  Abstract

Attendance is an important indicator that can confirm students’ participation in lectures, and the traditional method of attending by name has the disadvantage of taking a lot of time. To solve this problem, many universities have introduced an electronic attendance system to simplify the attendance authentication process, but the current authentication methods have a problem in that attendance authentication outside the classroom is possible due to information leakage or additional equipment needs to be installed to introduce the system. In this paper, we propose a sound wave signal-based attendance authentication system for the convenience of introducing the system in the future to prevent unauthorized attendance. The proposed system was able to authenticate attendance within an average of about 16 seconds for students up to 11 meters away from the speaker with an output of 55 dB in a 100m² classroom, and it was confirmed that signal leakage using sound transmission methods such as recording and call was impossible.

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[IEEE Style]

Y. Sea, J. Park, D. Kang, J. Lee, "Sound Signal-based Attendance System for Preventing Unauthorized Attendance," The Transactions of the Korea Information Processing Society, vol. 14, no. 5, pp. 305-311, 2025. DOI: https://doi.org/10.3745/TKIPS.2025.14.5.305.

[ACM Style]

Yeonwoo Sea, Jihwan Park, Dayeong Kang, and Jiyeon Lee. 2025. Sound Signal-based Attendance System for Preventing Unauthorized Attendance. The Transactions of the Korea Information Processing Society, 14, 5, (2025), 305-311. DOI: https://doi.org/10.3745/TKIPS.2025.14.5.305.

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