Time-space companion means that in a few days

Spatio-temporal companion refers to the person who stays with the diagnosed patient 14 days * * * stay 10 minute in the same spatio-temporal grid (usually 800 meters *800 meters as the detection range).

In layman's terms, for example, the confirmed patient has been to Fuzhou within 14 days, and the trajectory of someone 14 days intersects with him. Whether it is a physical brush or a drift in communication signals, it may be considered as a problem of time and space. After the system detects that this person is a spatio-temporal companion of the confirmed patient and belongs to the spatio-temporal companion in the risk group, the health code will turn yellow.

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Since March 3, 2002111,Chengdu citizens have successively received short messages about this round of COVID-19 epidemic jointly sent by Chengdu Public Security Bureau and Chengdu CDC.

According to the Chengdu Public Security Bureau, after the emergence of local cases in COVID-19, Chengdu Public Security Bureau actively sought the strong support of higher-level public security organs, comprehensively utilized big data and various information resources, accurately traced the trajectory of confirmed cases, comprehensively combed the people who overlapped with confirmed cases, and found that 82,000 people were at risk of temporal and spatial association.

What should I do after receiving a text message marked "Time Companion"?

First of all, don't be nervous. "Space-time companion" means that you may have direct or indirect contact with infected people in COVID-19 in the near future!

Secondly, we must pay attention to it! To do the following two aspects:

1. Contact your community, unit or hotel immediately, inform you of this short message in time, and implement epidemic prevention and control measures such as nucleic acid detection as required, and do a good job in personal protection.

Two, actively cooperate with the community epidemic prevention and control measures, and earnestly fulfill the obligation of epidemic prevention and control.