How to understand the automatic discoloration of health code? For example, before going out, it was a green code. After visiting the vegetable market, Alipay became a yellow code. In fact, this is the automatic identification and judgment function of health code. Changing the color number dynamically according to the travel records has certain basis and limitations. For a simple example, real-time road conditions rely on multi-user data feedback to judge road congestion. Just like a regional road section, the position moves slowly under multi-user GPS positioning, and the system can judge the road congestion accordingly. (Of course, this is just a routine judgment basis, which is actually more complicated. The situation of health code is similar to real-time road conditions. Just like the vegetable market is a crowded place, the system judges according to the travel situation of the declared users. When all yellow/red registered users are on the spot, the system may judge that you have the possibility of contacting yellow/red registered users. From this point of view, automatic color change is based on a series of possible information, such as travel records, information registration or contact judgment, to judge whether or not to change the color number. However, there are limitations, and the standards based on region/travel records may be biased.
Of course, if you have any objection to your yellow code or red code, you can directly apply for modifying the health code status in the "transcoding application" on the health code page, and modify the health information in time according to your health status. Transcoding application is mainly the application of converting other color codes into green codes. That is to say, it may be necessary to isolate, fill in the wrong information, or confirm the cure. After the application is confirmed and reviewed by relevant departments, it can be turned into a green code.