On July 3 1 day, the launching ceremony of "Smart City Smart Bus" and Ji 'an Bus UnionPay Mobile Payment and National Traffic Card was held in the southern citizen square of the city center. On the basis of the original coin-operated bus card, citizens have added some payment methods such as UnionPay mobile phone flash payment, UnionPay QR code and UnionPay IC card payment. This marks a big step forward in the construction of a smart city in our city, and citizens take public transport to enter a new era of mobile payment.