DESIGN OF A MULTI-LAYERED ELECTRONIC SECURITY LOCK SYSTEM

Abstract

Users often use mechanical locks to protect their assets, but they can easily be bypassed through various tricks, and losing keys can also cause a lot of inconveniences. With the development of technology, electronic security locks have been created to solve the drawbacks of traditional locks. This article proposes to build an electronic lock that combines functions into one device, including a password input keyboard, fingerprint sensor, and one-time password via SMS sent to the owner's phone, to create a multi-layered security system that allows users to open the door by combining fingerprint with OTP code or entering multiple passwords with a 4x4 keypad. In addition, the lock will also provide unauthorized intrusion warnings in case of violation of administrative access rights or incorrect unlocking procedures. The system's operation is verified through simulation on Proteus software. The research results provide an effective security solution, improving and bringing convenience to the community.