QR Code Based Security System to Prevent Unauthorized Access

Abstract

In urban areas one of the main reasons for theft is due to unauthorized people who come as plumbers, carpenters, electricians and rob the house. Among the various criminal activity cases it can be seen that and maximum cases are house break in. So this system efficiently tackles the problem. The system consists of a camera and PIR sensor which is placed at the balcony of house, which is used to detect an intruder, and a mobile application which will send real time QR code to a Wi-Fi module and a guest.