Raspberry Pi 4B-based Design of Home Intelligent Access Control System

Continuous development of computer technology leads to ever-growing demand for door lock intelligence. In response to this change, a Raspberry Pi 4B-based home intelligent access control system is designed for humanized functions such as voice broadcast. The system has three unlocking modes: remote unlocking, password unlocking and face unlocking. The hardware has a Raspberry Pi 4B-based camera module to record face portraits, process images, save portraits, recognize faces, etc. It has OLED12864 LCD screen for display, and voice broadcast module for broadcast prompts. The mobile terminal can not only unlock remotely, but also receive alarm information in addition to remote monitoring. With convenient unlocking mode and sound alarm system, it is more convenient and safer than the general access control system, thus more appropriate for life. With diversified unlocking modes, it is deeply favored by users.