How to identify the face value of the invested money in Guangdong unmanned vending machines

How does Guangdong unmanned vending machine identify the face value of the invested money? When you throw a coin into an unmanned vending machine, how does it decide how much the coin is? How to determine the face value of banknotes? Today the author will answer your questions. Coin detection is mainly carried out from three aspects: size, material and weight. Needless to say the size. Counterfeit banknotes cannot pass this pass. Material testing relies on electromagnetic characteristics, because the coin uses a special mixed metal material, coupled with a specially designed high-frequency oscillator circuit, can more effectively distinguish the magnetic impedance of the material. In order to filter counterfeit banknotes. In addition, there is a small mysterious machine. The magnetoresistance of the coin is also related to the size, and the phase change size test has been completed. The weight comparison is more interesting. The unmanned vending machine is designed with a 'track' of coins, and only the size and density of the coin pass through the coil within the specified speed range. Otherwise, it is false. But there is one more thing: coin making is really tiring. If you don't have a big channel, you have to spend a little money. With channels, we must seize them. I don't know how much gross profit each coin needs to make a profit without losing it? Recognition of denominations and identification of true and false banknotes can be completed at the same time. There are dozens of identifiable features in most domestic and foreign banknotes, including various watermarks, various embedded materials, various pattern details, various concave-convex engravings, and various fluorescent patterns. At the time of recognition, the basic recognition methods include size recognition, pattern recognition, optical recognition, magnetic recognition, etc. Nowadays, currency detectors generally select certain features to recognize. If the recognition is successful, the authenticity of the banknote is If you know it, you will know the denomination. I hope that the above content introduced by the Guangdong vending machine is helpful to everyone. If you want to know more information, please continue to wait for the author to share it. Previous: What are the characteristics of Guangdong vending machines Next: Do you know how to save electricity by using unmanned vending machines?