RFID technology is ubiquitous in life, such as hotel access cards, university canteen meal cards, and even second-generation ID cards all use RFID technology.
When collecting the ticket, the user can scan the self-service ticket collection machine by scanning the QR code displayed on Alipay after the purchase of the ticket. The whole payment process only takes about 10 seconds to complete, which is very fast. In some cities such as Guangzhou and Shenzhen, citizens do not need to collect tickets with Alip
