Big Data Same Spatio-Temporal Grid means that my phone number and the diagnosed number stay in the same Spatio-Temporal Grid (range is 800M*800M)*** together for more than 10 minutes and the cumulative length of stay of either number in the last 14 days has been more than 30 hours or more, and the number detected is a Spatio-Temporal Accompanying Number. My green health code will then change to a yellow code with a warning and will be labeled by the system as a time and space companion.

Before the timekeeper, the identification of people at risk for new crown infections was managed as close contacts. By comparing the two definitions, it can be seen that the biggest difference is the further expansion of their spatial scope. In the outdoor open space, the same base station within a certain distance of the cell phone number has had a specified length (for example, 10 minutes and above) trajectory collision, defined as a potentially exposed spatial and temporal accompaniment.

Related Information

Health code yellow code personnel and receive the Chengdu Municipal Public Security Bureau, the city of CDC SMS alerts of the risk of spatio-temporal accompaniment should be immediately reported to the community, and within 3 days of the two nucleic acid test, the two nucleic acid test The interval between the two nucleic acid tests should be more than 24 hours. Please stay home and do not go out before obtaining a negative nucleic acid result.

There are many places that have issued definitions and management measures for people who are accompanied by time and space, but the practices vary from place to place and there is no official and unified definition and management of "time and space accompanied people".

In the information released by many places, space-time accompaniment, space-time intersection, space-time overlap are unified as a term to explain, but the content of the definition released by the localities is not quite uniform.