IoT Based Secure Lock/Unlock System Using Google Assistant Based English And French Languages

Abstract

The user can utilise the voice acknowledgement in making it more straightforward for individuals with inabilities to get to entryway frameworks and give better security to lives and properties.  In this paper, the advancement of the technology is used for opening any locking system.  We are implementing this type of module where it can be of low cost, and even physically disabled persons can open the door without any assistance. The Blynk app and a Wi-Fi module can access the system by giving the input and output as a voice recognition speech command. Hence, in this paper, any person can just use google assistant from their smartphone to lock or unlock a secure system with just two controls, i.e., "Ok Google Lock Door one", "Ok Google Unlock Door one". This Project works seamlessly for three locks in one system that can be operated separately using only one main microcontroller, i.e., Node-MCU ESP8266, and relays drivers so that our Project can be quickly developed and deployed. The applications of this Project is endless as technology constantly evolves. Suppose the user is connected with the internet and operated using Google Assistant. In that case, the lock is operated only from one account, making it secure and available to all who use smartphones and have a google account. Even for people who are blind, this can be an excellent way to lock and unlock their resources just with their voice. Anyone can utilise this Project from their convenience, making it the easiest way for anyone to lock/unlock just by two words, i.e., "Ok Google Lock Door."