The "health code" is based on real data and can be generated by citizens or people who have returned to work through their own online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.
Health code was born under the background that the whole industrial chain is trying to resume work and production, and it is a new technology to establish an economic and social operation order that adapts to epidemic prevention and control. During the epidemic, the health code is the product of individuals entering and leaving electronic certificate, and it is the product of using big data to strengthen the joint prevention and control of COVID-19 epidemic.
Health Code was founded in Zhejiang. After citizens declare and register health information online, they will review and generate personal QR codes in the background. Under the guidance of the E-government Office of the General Office of the State Council, Alipay and other companies have accelerated the development and deployment of a national unified health code system for epidemic prevention and control.
Health codes are dynamically managed in three colors: green code, red code and yellow code. The person who receives the green code passes the code. Those who receive the red team and the yellow code need to be isolated according to regulations and punch in healthily. When the conditions are met, they will be changed to green codes.