Investigation Of Secret Knock Access System For IOT Based Smart Door Lock

Tey, Xue Qi (2019) Investigation Of Secret Knock Access System For IOT Based Smart Door Lock. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) Investigation Of Secret Knock Access System For IOT Based Smart Door Lock.pdf - Submitted Version Download (363kB)

Abstract

The aim of this project is to build an Internet of Things (IoT) based smart door lock system to be used by a homestay operator in Malaysia. IoT based smart door lock system is designed to utilize a low-cost security system with special features to enable unique knocking pattern to unlock the door. The IoT based smart door lock allows the operator to enable the lock and unlock function via mobile phones over the internet. The system provided convenience to the homestay owner and guests whilst maintaining the security. The project consisted of sensor signal conditioning amplifier circuit design, controller system integration, microcontroller programming and IoT cloud platform configuration. A piezoelectric sensor is used to detect the vibration pattern from the door knock which signal output is usually very weak. Thus, an amplifier design is required to filter the signal before processed by microcontroller. This feature is very useful in case if there were issues with an internet connection or user do not have mobile phones with them. The system included other value-added feature which may increase the security of the door lock system in the future

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