An Automatic Cash Detector for PID Controller Based Self-service Petrol Dispenser
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Abstract
In this paper, we propose a design and implementation of an automatic self-service petrol dispenser that receives payment from a customer in the form of cash, instead of e-money of or credit card as those in many similar machines existing in Indonesia. Hence, the system can facilitate a vast majority of potential customers who have no access to any form of e-money, credit card, or simply because of personal preference of using cash. The experimental results show that every component can communicate smoothly; thus, relevant parts in the system received information as intended. Furthermore, the system is capable of recognizing the value and authenticity of the cash inserted to the machine using the template matching technique with an accuracy level of 95,83%. As equally important, the amount of petrol which is pumped out-flowing to the customer's tank using a PIC controller with an accuracy level of 98.22%.
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