If the password turns yellow, you can go to the hospital for a test. If the nucleic acid is negative, it will automatically reply. At present, the health pass code has two main uses in our province. One is to apply for my health pass code by displaying the code function, which is used to provide personal health certificate for epidemic prevention. The other is to scan the health pass code through the code scanning function to obtain other people's health information for epidemic prevention as a verification tool for the code holder's health certificate.

Format of pass code

Code refers to the health code under the epidemic situation, which is a personal two-dimensional code based on personal health data and generated through the comparison of personal declaration background big data information, helping people to flow across provinces safely and orderly and return to work normally. Its main functions are as follows: The password is a personal two-dimensional code based on personal health data and generated through the comparison of personal declaration background big data information.

Every time citizens scan the health code, they will display personal identification information, such as ID number, name and nucleic acid test results. Risk grade information, such as red team indicating high risk, yellow code indicating medium risk and green code indicating low risk or no risk, is classified into data with traffic information gathered from the whole country. After comparing the prevention and control rules with the data modeling background, three COVID-19 risk levels, low, medium and high, are judged and displayed in three colors: green, yellow and red.