Expansion: green code: the epidemic prevention data of the national government service platform has been verified to be normal health, and the green code can pass freely;
Yellow code: the epidemic prevention data verified by the national government service platform is normal, but if the field temperature measurement is abnormal, the body temperature will return to normal, and if the temperature of the code scanner is normal, the yellow code can drive normally;
Orange code: the health status of the close contacts of confirmed and suspected cases verified by the epidemic prevention data of the national government service platform, and the orange code for isolation according to the relevant regulations on epidemic prevention;
Red team: The health status of the confirmed and suspected cases verified by the epidemic prevention data of the national government service platform, and red team was isolated according to the relevant regulations on epidemic prevention.