Is the time-space intersection SMS sent in batches?

No, a time-space partner is someone who has been in the same time-space grid with the diagnosed patient for 14 days before sending you a time-space intersection message. Time-space intersection SMS is not sent in batches, but only once. Run-length encoding, as the record voucher of travel track, is an important means of epidemic prevention and control, which is widely used in the whole country at present, with many citizens.