What is the number of the person who posted the intersection of time and space?

Time and Space Companion Number

The intersection of time and space generally refers to the time and space companion, a new term spawned by the COVID-19 epidemic. It means that the personal phone number and the confirmed number stay in the same space-time grid (range is 800M*800M) for more than 10 minutes, and the cumulative stay time of either party’s number in the last 14 days exceeds 30 hours, the number detected is space-time Accompanying number.

Application of time and space intersection in the epidemic: Time and space intersection is the same concept as another way of saying time and space accompanying, which refers to the same time and space grid (usually 800 meters * 800) as the confirmed patient within 14 days. meters (meter is the detection range), and it must stay for more than 10 minutes. In layman's terms, for example, if a confirmed patient has been to Fuzhou within 14 days, and your trajectory in the past 14 days has intersected with him, whether it is a physical passing by him or a drift in communication signals, it may be regarded as a time and space companion. . After the system detects that you are a time and space companion with a confirmed patient, and you are a time and space companion among the risk groups, your health code will turn into a yellow code. How to convert the yellow code of Time and Space Companion to green code? Carry out nucleic acid testing as required, and the health code will return to normal after the result is negative. Since the concept of time and space intersection is adopted in the prevention and control of this epidemic, some citizens are included in risk management even though they have no direct close contact with confirmed cases or close contacts.