The Big Data Trip Card is by far the most important tool for understanding our travel trajectory. It will record where you have been in the last 14 days. So how does a communication trip card record a trip? Cow today brings the principle of communication record card. Let let's have a look.

What is the trip code used to record the trip?

It's determined by your phone's base station information, so your phone needs to communicate with the base station to determine the trip. If you call from a different location, your location will be recorded.

How long is the trip code recorded?

If the travel code is accurate within the country, it will be recorded if you spend more than 4 hours in each province or city. It is possible to check the cities where you have spent 4 hours in China, as well as cities where you have traveled to other countries in the previous 14 days without filling in the information. The query is initiated by the user. You can access the query page by scanning the code with your cell phone software). , or WeChat applet search for Communication Travel Card to enter the applet. Enter your cell phone number and click to get the verification code. After successful verification, click 〖Query〗button to return the query result. In fact, the travel code is mainly located through the cell phone number, the cell phone number can record the location of each person to go.

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