No matter what place you go, no matter you take with or without a cell phone, your trip will basically show up, accurately said that is through the residence show up, now buy plane tickets, train tickets, all by ID card, and lodging, also need ID card, that is, you do not take the plane, the train, you drove through the toll booths, into the parking lot, the same record of your identity information.

Not with a cell phone out of the trip code will not change, show the fact that has not been to the place, because the big data only on the cell phone observation, and not on the person, so no cell phone is not measured what you have been to the place, but the observation of the cell phone holder has been to the place, but also mainly for the needs of the epidemic, to prevent going to the epidemic area, so with a cell phone to facilitate the point.