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Identification of counterfeit currency in ATM using PLC

Author Affiliations

  • 1Dept. of Electrical Engg, BIT, Durg, CG, India
  • 2Dept. of Electrical Engg, BIT, Durg, CG, India

Res. J. Engineering Sci., Volume 6, Issue (5), Pages 28-30, June,26 (2017)


Automatic teller machine (ATM) is used to provide money to the user as per the amount inserted by the user. ATM using PLC can be implemented using various devices or techniques for identification and verification of currency such as transistors, transducers, sensors and image processing technique. The present ATM\'s already use PLC for programming but the machines are not capable of identifying counterfeit currency and it\'s denomination hence changes with programming are needed along with some hardwares. In this research paper sensors and image processing technique are compared for identification and verification of currency. Identification of counterfeit currency is the major problem associated with ATM. The outputs of the sensors or image processing technique are given to the PLC and the operation of PLC is programmed to dispense money.


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