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This paper developed security system prototype using motion sensor powered by Radio Frequency Energy Harvesting, one form of energy harvesting that regardless its lowest output power among other energy harvesting forms, its all the time availability, batteryless and readiness everywhere make its own advantages no other type of energy harvesting have. Motion sensor acts as a shield to detect movement as to detect crime. In this project, there are two security system by using motion sensor. First stage of security system which in outdoor, operated as the sensor detect motion, the bulb will light up. Second stage security system which in indoor, operated as the sensor detect motion, it will trigger the dial speed key of the GSM and send an alarm call to user. The RF to DC energy will stored in the LiPO battery to power up the operation of motion sensor. Together with data and analysis measured, the RF energy harvesting able to generate voltage and current which can operate the low power consumption of the PIR sensor.A 3 Watt stand-alone power transmitter at frequency 915 Mhz used to test the prototype to replace the ambient available radio frequency resources. The results showed the security system prototype using motion sensor works properly, able send alarm to owner. |
