How to charge the intelligent vending machine in orange hotel

Intelligent vending machine: After selecting a product, the vending machine program will initiate a payment application QR code (WeChat, Alipay or other electronic payment) to the background server, and the QR code will be directly displayed on the vending machine display screen. After the customer scans the code, the background server will inquire whether the payment account has received the money. If yes, the background server will send delivery instructions to the vending machine, and the vending machine will deliver the goods according to the instructions. Intelligent vending machines have many functions and complex principles. Some of them can be shipped free of charge according to the entered delivery code. The principle is that the customer inputs the delivery code or lottery code, the vending machine sends the delivery code to the background server, the background server verifies the delivery code and sends the corresponding delivery instruction to the vending machine, and the vending machine sends the corresponding goods according to the instruction.