Mobile phone scan code login background query data, you can export print data on the computer side. The two-dimensional code scanning box system of national health code for epidemic prevention of small doorman integrates many functions such as health code/local code identification and verification trip code, nucleic acid result query and so on. , which realizes the multi-code and one-key verification of health information and effectively solves many special situations. Built-in high-precision scanning camera, fast scanning speed, fast and sensitive feedback of recognition results, and also supports voice broadcast. Intelligent voice broadcast can let people know the scanning results quickly, and the indicator light indicates the color, which takes care of the needs of different customers. There is also a small doorman epidemic prevention national health code face recognition and temperature measurement integrated machine. Through the AI face recognition thermal imaging and temperature measurement big data application system, it integrates functions such as temperature detection national health code inspection, so that everyone can pass the code and travel all over the world.