What is the reason why Sichuan health code turns yellow?
10 On June 28th, the information released by the official WeChat of Changsha CDC in Hunan Province mentioned that the mobile phone number that collides with the track of the same base station within a certain distance within a specified time (such as 10 minutes or more) in the outdoor open space is defined as a space-time companion that may be exposed.
At present, Chengdu police have found that 82,000 people are at risk of time-space correlation, and some people's Tianfu health codes have turned yellow.
Spatio-temporal adjoint means staying in the same spatio-temporal grid (the range is 800 m * 800 m) * * for more than 10 minute, and any number stays for more than 30 hours in the last 14 days, and the number found is the spatio-temporal adjoint number. For example, the infected person has been to a certain place within 14 days, and the trajectory of you 14 days intersects with him. Whether it is a physical passing or a drift in communication signals, it may be considered as a "time companion." "Space-time satellite" refers to the number of space-time satellites in the same space-time grid (the range is 800 m * 800 m) * * and the confirmed number stay for more than 10 minute, and the cumulative stay time of any number in the recent 14 days exceeds 30 hours.
In addition, there are some areas where the definition of time-space companion has not been clearly put forward, but it has been implemented in actual management, such as Xi' an, where cases were first found in this round of epidemic, and Beijing, where prevention and control have been upgraded.
In short, don't be nervous when you have time and space, just make a nucleic acid test certificate.
These are the reasons why Sichuan health code turned yellow. I hope it will help everyone.