An IoT-Based Smart Airport Check-In System Via Three-Factor Authentication (3FA)

: The Internet of Things (IoT) has been taking over the globe, providing an interface where computer devices are connected to digital equipment, mechanical machines, and even individuals. This paper suggests a smart airport check-in system utilizing the Internet of Things. The system includes setting up a smart door to secure the passage of travelers at the airport, depending on the barcode boarding pass (BCBP). The door is designed and implemented using Raspberry Pi 4B, and two cameras are installed. The first one is for scanning the BCBP, decoding a developed PDF417-based algorithm and processing the data. The second camera is to detect and capture the traveler’s faces in real-time video streaming among the face alignment using Dlib and OpenCV-Python algorithms. A fingerprint reader is also attached to the system as biometric authentication. The system is monitored using the KAA platform. When the data of a traveler is verified and matched, the door opens. If the data is not matched, the door remains closed and a Telegram notification will be sent to the airport security. The system was tested on 100 travelers. It results to obtain smooth, secure, and reliable check-ins.