How do vending machines identify true and false RMB

We all know that vending machines are becoming more and more popular nowadays. Basically, they are equipped with mobile phone scan code payment or face scan payment. It seems that cash payment methods are getting more and more tasteless. In fact, in some special places such as elementary schools and other places. Cash payments in places where mobile phones are not allowed are still insignificant. Let's briefly talk about how the vending machine recognizes true and false RMB. Use fluorescence to detect the paper quality of RMB: The paper used in RMB is a special kind of paper that contains more than 80% of high-grade cotton. This kind of paper will be controlled and cannot be purchased from ordinary channels. Counterfeit banknotes are generally made of ordinary paper. For bleaching, this kind of paper will show a blue light reaction under ultraviolet radiation, while real banknotes do not have this phenomenon. Therefore, ultraviolet rays can be used to preliminarily determine the authenticity of banknotes. There are these devices in the banknote devices used in vending machines. Use magnetism to measure: there will be magnetic ink on some parts of the banknotes of large denominations. The magnetic detection of these parts is carried out by a special high-sensitivity magnetic probe, which can read the banknote data, and then combine it with the intelligent logic circuit. The signal is compared with the data of the real currency, which can effectively identify the true and the false. Use infrared transmission detection: different materials and different inks have different infrared absorption and perspective rates. Through different dents, densities, and patterns, the real currency has its special infrared characteristics. It passes through the infrared of the vending machine banknote device. The sensor can also effectively identify the authenticity. Laser irradiation detection: This is a relatively advanced counterfeit detection technology. The fluorescent fonts on the fifth edition of the RMB are irradiated with a laser beam of a specific wavelength. These fonts will reflect light of a specific wavelength. This solution has high scientific and technical content and is difficult to imitate. It is suitable for accurate detection, and the recognition rate is relatively high. After customers put cash into the vending machine, they will go through layers of screening and identification, and the possibility of passing through the counterfeit currency is almost zero. As a strong vending machine manufacturer in the industry, haloo can customize unmanned self-service equipment that supports various payment functions for customers!

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