Intelligent Physical Access Control System Through Three-Stage Verification Using IoT

In present communication, an intelligent physical access control system is using IoT platform, where there are three different verification stages. The hardware is designed on proteus and then fabricated on PCB board. The major part of this system is Arduino Uno, fingerprint scanner-R305, 4 × 4 keypad module, GSM module-900 A, 5 pin relay-5 V, and solenoid lock. Arduino IDE software is used to operate the hardware. Five steps have been accounted, first: enable the system, second: put finger on scanner, if it matches, third: asking to enter password or code for second verification then fourth: one enters the password and access or lock is opened. In meanwhile, one SMS delivers on owner/authorized person. Fifth: after certain delay (5 s), it locked, automatically and again one more SMS delivers on owner/authorized person. Such systems are designed and applied for higher security purpose for highly restricted areas for common public or hotels, classrooms of school and colleges, offices, bank lockers where unauthorized person is not permitted to access the place. The total cost of this hardware is approximately Rs. 2700.