How long can I get a travel card for parking and charging?

Under normal circumstances, when a mobile phone passes through a place and stays for about an hour, there will be a track display. If it is closed, it will not be recorded. As long as it is turned on and used normally, the path record of the place will be displayed.

Communication Big Data Travel Card is the "signaling data" of mobile phones used by China Xintong Institute, China Telecom, China Mobile and China Unicom.

Through the location of the base station where the user's mobile phone is located, it provides free inquiry service for 654.38+06 billion mobile phone users nationwide. Through this service, mobile phone users can query all the city information they have visited in the previous 654.38+04 days.

Introduction of itinerary card

As of March 25, 2020, the cumulative number of inquiries has exceeded 450 million.

From 20: 30 on 202118, the city name of the medium-high risk area is no longer marked in red on the travel card, but is marked in brackets after the city name. Precautions are only used as travel tips and have nothing to do with health status.

On March 30th, 20021year, the national government service platform "Epidemic Prevention Health Code" has integrated the relevant information of "Traffic Big Data Travel Card", which can show whether the user has been to medium and high-risk areas and other travel information in the health code, and help the health code "one code pass".