More and more smart cabinets appear in our lives. Smart express cabinets, smart bookcases, smart vending machines, smart lockers, and smart file cabinets; it can obtain valid data by identifying barcodes, QR codes, and facial features. Retrieve the data in the database, find the matching one, and open the cabinet door. The convenience of unattended and all day work makes people more and more aware of the rapid development of science and technology, which is a characteristic application scenario under the IoT(Internet of Things) technology.