음성통신을 기반 스마트폰 출석 시스템에 관한 연구 = A Study of the Attendance System based on Smartphone’s Voice Communication

다국어 초록 (Multilingual Abstract)

With the rise of increased use of smart phones and technologies, human resources management in companies, military and different institutions are using electronic attendance systems ditching the conventional handwritten attendance method. An electronic attendance management system can provide fast and accurate attendance information to both professor and student compared to conventional systems at any time.
However, existing electronic attendance management systems require high cost and special equipment such as RFID or NFC to operate the system. Also by sending the attendance information in a non-classroom, there is a problem of an illegal attendance.
In this thesis, we propose an electronic attendance system as follows. First, our system requires low cost. Since smartphones are very popular nowadays. Second, our system can be applied to all smartphones as our system rely on voice communication channel using speaker and microphone of the smartphone for checking attendance. Third, our system can prevent an illegal attendance. Since voice communications are possible only within a short range.

목차 (Table of Contents)

• 1. 서론 1
• 2. 관련연구 3
• 2.1 전용 하드웨어 방식 3
• 2.1.1 RFID(Radio-Frequency Identification) 4
• 2.1.2 NFC(Near Field Communication) 5
• 2.2 기존 하드웨어 방식 6
• 2.2.1 블루투스 비콘(Bluetooth Beacon) 6
• 2.2.2 QR코드(Quick Response Code) 8
• 2.2.3 GPS 9
• 2.3 음성통신 방식 11
• 2.4 비교평가 13
• 3. 제안하는 시스템 14
• 3.1. 전체 시스템 구성 14
• 3.2 교실 앱 16
• 3.3 학생 앱 21
• 3.4 교수 앱 21
• 3.5 교수 및 학생 정보 등록 프로토콜 22
• 3.6 교과목별 출석부 생성 프로토콜 23
• 3.7 출석 정보 등록 프로토콜 24
• 4. 구현 및 평가 26
• 4.1 교실 앱 26
• 4.2 학생 앱 27
• 4.3 교수 앱 28
• 4.4 서버 29
• 4.5 소음에 따른 전송률 테스트 29
• 5. 결론 및 향후 연구 31
• 참고 문헌 32