On unionpay as early as in 2016, the author through the NFC tags to complete the payment in imagination, now functions, is once again helped the NFC industry, relative to the current scan code to pay, also has some disadvantages,
advantage
First is security advantages, and code to pay at this stage the bigger problem is security problem, how to solve the "bait-and-switch" stolen brush is a big headache, payment based on NFC tags, than the qr code stickers, unauthorized technical and cost more demanding,

Is instantaneous quick pay advantage, relative to the scan code to pay, payment based on NFC tags, location of the light and scanning requirements is not high, the instantaneous payment experience, is better than sweep yards pay,

Third, avoid sweeping yards pay limitation of 500 yuan, according to the request of no. 296, solid code need quota of 500 yuan, unionpay based on NFC tags of payment, payment technology is NFC, realization way is online payment, perhaps can hedge the limit of the central bank,