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NFC meter prepaid application.washable nfc tag company

source:RFID News    Popular:Uhf Animal Tag   Release Time:2022-01-17 09:32:35   Article author:sznbone

  The NFC non-contact prepayment system can effectively control the power supply of the electric energy meter installed in the customer's premises. The working principle of the prepaid electricity meter is to purchase electricity first and then use it. The user purchases electricity in advance and enters it into the prepaid electricity meter in some way. This type of electricity meter allows consumers to decide how much electricity they want to buy and how much electricity they use, thereby enabling them to better control their electricity bills. When the pre-stored power is exhausted, the meter will automatically shut down. The NFC function allows the meter to continue to supply power until the remaining power on the card is fed back to the meter.

  The main component of the NFC prepayment system is the payment infrastructure, such as vending machines, electricity meters, and NFC read-write devices that record the remaining power to the meter. In a vending machine power plant, an NFC-compatible vending machine or smart phone is connected to the server of the power supplier, and the power purchased in advance by the consumer is written into the NFC power purchase card. Then the user brings the card close to the electric meter, and the NFC module of the electric meter reads and writes the card. At this time, the NFC interface of the electric meter looks for a new remaining power input request, and after the mutual authentication process between the devices, the newly purchased card power is stored in the electric meter. The prepayment system deducts the pre-storage power according to the power consumption. When the power storage is zero, the meter automatically cuts off the power and disconnects the load from the grid. In order for users to continue to use electricity, they must purchase electricity again.


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