The resumption is coming, the characteristics of high infection and asymptomatic latent infection of novel coronavirus Pneumonia in close contact will undoubtedly pose a huge challenge for large enterprises to stop the spread of the virus. In order to ensure national economy and people's livelihood, many enterprises, such as automobile manufacturing and assembly, electronics manufacturing, and logistics companies, have to resume to work. They have operating scene characteristics such as intensive personnel and frequent worker collaboration. In addition, rework workers from the Spring Festival holiday from the Potential infections may be extremely high in various regions and long-distance “migration” across regions. It is conceivable that the urgency and pressure of epidemic prevention and control within enterprises can be imagined. How to ensure the safe operation of the company before the end of the pneumonia epidemic, screen potential infections, and prevent the overall isolation of the company due to one person's infection is very important. At the same time, how to take advantage of other relevant epidemic prevention measures, such as preventing staff from joining posts to expand the scope of infection, intelligent monitoring of disinfection work, etc. Therefore, preventing the outbreak of the epidemic within the company have also become a big concern for enterprises.