IoT Based Multipurpose Smart Security System

Technological evolution has made the life of human with ease, also in contrast with it there are some issues that are to be maintained to attain safety and security which is a major concern in the modern world. In this paper we have introduced a product which has an integrated system of fire detection, theft or unauthorized access protection, Gas leakage detection, water level indication and home automation. Altogether, works based on the concept of Internet of things. ATMEGA328p microcontroller is used for the control over the entire process. ESP8266 Wi-Fi module is used which can be communicated via the serial communication, which provides the internet setup to the device. This module can be operated in three modes. Mode1 - station mode, Mode 2 - access point mode, Mode 3 -combination mode. An android application is created in which the user will have a user name and password for their account, logging into it will display them the above features like fire detection, gas leakage detection, unauthorized access, water level indication and home automation as icons and the user can have their own control over the features. In case of any emergency is detected immediately the relevant emergency message is sent to the user’s mobile through internet where protective action is enabled immediately. In case of leakage of LPG above a particular threshold value, the intimation is sent to the user. The exhaust fan to suck out the harmful air outside is switched on automatically. If there is a sign of smoke or fire inside, immediately the relevant emergency message is sent to the users mobile and automatically switches on the special water supply system fitted to put off the fire. In case if someone try to enter the place of the locker intimation is send to the user, unless the user allows the access no one can't access it. If they try to open the locker or break it up one more emergency message will be sent. Here if the user switch on the shock button, a high voltage low current will pass through the locker which will never harm the person instead it makes them faint or keeps them away for some time. A feature named essentials is provided in the app where the user can have the control over their home accessories like switching on and off the fan, light and other devices from the app. If there is an overflow or scarcity of water in the water tank the message will be sent and the user can switch on or off the system. This product serves for various users of residence, apartments, hotels, malls etc. This paper empathize an integrated system that serves for multipurpose use that facilitates the life style of a person by providing safety and security it has a tremendous market value in the society.