Face Recognition Door Lock System Using Raspberry Pi

This abstract presents a project focused on interfacing a Raspberry Pi with a USB camera to create a face recognition door lock system, accompanied by an LCD screen for visual feedback and a buzzer for alerts. The primary objective of this system is to enhance security and access control by granting access to authorized individuals based on facial recognition while alerting unauthorized access attempts. The Raspberry Pi serves as the core component of the system, equipped with software for face detection and recognition. A USB camera is connected to the Raspberry Pi, enabling real-time capture and analysis of faces in the vicinity of the door. When an individual approaches the door, the camera captures their face, and the Raspberry Pi compares the captured facial features with pre-registered faces in its database.

Upon a successful match, indicating that the person is authorized, the Raspberry Pi triggers a relay to unlock an electromagnetic door lock, allowing access to the secured area. Simultaneously, the LCD screen provides visual feedback, displaying a welcoming message to the authorized individual. Conversely, if the facial recognition algorithm does not find a match, signaling unauthorized access, the system activates a buzzer to raise an alert. This audible warning serves as a deterrent to unauthorized entry and can also be complemented by additional security measures or notifications.

Keywords: Face Recognition, LCD, Buzzer, Electromagnetic Lock