Does Hubei publish time-space peer SMS?

Generally speaking, the time-space companion number means that the resident telephone number and the telephone number of the diagnosed or asymptomatic infected person stay together for more than 10 minute at the same time and in the same time grid (the range is 800M*800M), and the cumulative stay time of any number in the area in the last 14 days exceeds 30 hours, then the found number is the time-space companion number. Once it is found that citizens' friends are accompanied by time and space with the diagnosed or asymptomatic infected people, they belong to the time and space companions in the dangerous population.