How Can Vending Machines Tell The Diffrence Between Bills?
i mean its the same paper, i can understand coins because they have diffrent sizes but i dont know how they tell the diffrences between 1,2,5,10,ect. bills
Tags: Between, Bills, Diffrence, Machines, Tell, Vending
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on Sunday, December 27th, 2009 at 12:53 pm and is filed under Buying Vending Machines.
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December 27th, 2009 at 5:33 pm
It is called Optical Character Reading (OCR). The bill is scanned by the OCR and the resulting data points are compared with stored data for each bill denomination and a decision is made as to the validity of the bill. It kicks out the bill if it is too worn etc. and cannot make a good decision.