Low-power FPGA based security system for cabinet protection

In unauthorized areas, providing access to only authorized persons is a problem. The keyless entry eliminates the problems associated with the key duplication and break-ins but such a system has to be impeccable. Since the keyless security system works on batteries when operated as stand-alone system, a low power design is very much desired. In our approach, depending on the states of RFID and PIR sensor outputs, access is given only to authorized persons, whose RFID tag data matches with that of the program memory of FPGA. Further, the power saving is achieved in the place and route phase. Here, we make use of simulated annealing for placement and Lee maze router for routing. A comparison of initial and final placement is presented along with the power savings.