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ABSTRACT:

           In this modern era of automation, there is a need to keep things under control through the use of well-defined technology and engineering capabilities. Over the years, many engineering fields like computer science,electronics,communication and Instrumentation technology, use sensors together in order to get better products and benefits. Obviously, it is a convincing fact that interdisciplinary efforts would lead to success because each field would overcome the limitations of the other. So, taking this as a motivation, an attempt is made here to develop an alternative method to provide security.

          This paper illustrates the design and development of a theft control system for security lockers, homes, bank lockers, jewelry outlets, etc. The proposed system consists of an LDR (Light Dependent Resistor) based sensor which acts as an electronic eye for detecting the theft or attempt, and a signaling procedure based on SMS using GSM (Global Systems for Mobile communications) technology. The GSM based communication helps the owner and concerned authorities to take necessary and timely action in order to prevent the theft. The LDR circuit is interfaced using a relay circuit with an microcontroller board. Efficacy of the proposed system can be seen in its immediate intimation regarding the incident. The proposed designed system is very effective and inexpensive.

Existing system	Proposed System
·         For RFID based locker system there is no security measures when RFID system has been breached by the thief	•      We have introduced the much security measures to RFID based system by incorporating  LDR technology to the existing system