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With the rapid development of social science and technology, people's travel has become more convenient, which promotes the management of parking lot. How to manage the parking lot has become the primary problem for the present situation of the society.

Because of the increasing traffic volume and the increasing frequency of people entering and leaving, there are some difficulties for the relevant charges and identity confirmation. At this time, a gate is needed to confirm the identity and control the flow of people. After you have paid the relevant fees in the parking lot, the relevant payers will get a paper QR code or mobile QR code to scan through the gate, just place your QR code right above the scanning area.

Today, with the development of science and technology, many people are looking for new opportunities and changes. "Internet+" launched a self-service meal ordering machine under the enthusiasm of catering wisdom. It only needs to embed a 2d bar code scanner to provide a self-service "scanning code meal" service that does not require queuing and no waiter operation. This method is very much in line with the needs of today's young people's consumption habits and is very popular among food and beverage consumers.