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This is a cash detector for elders,theoperatin have to be as simple as possible.Chash
validating needs to simplify the recognition process to realize automation with automatic change calculation function. Taking cost into consideration, the product doesn’t apply to the big screen. All in all, it shall be easy to operate with the minimum buttons to be functionally concise. The purpose of the design is to reduce
the old man received counterfeit money, as far as possible to protect the interests of property.
South China University of Technology