What is an orbit?

The travel code city shows the cities that have passed first, in order.

Generally, the activity track of WeChat travel code above is the place where you first arrived. In this case, the travel codes will be displayed in front, basically in a certain order. If you go to a place now, the travel code of this place will be displayed in front of the previous place. By obtaining the travel records through the user's mobile phone, you can accurately locate the trajectory you have traveled.

For example, if you go to City A for two days and ten days on business, and then return to City B where you work and live, the travel itinerary code will show that you have been to City A and City B, etc. After 0/4 days of business trip/kloc-,City A will automatically disappear from your itinerary code.

China Information and Communication Research Institute cooperated with three basic telecom enterprises to launch the "Communication Big Data Travel Card" service by using telecom big data, and provided free local services to 14 days for the national1600 million mobile phone users.

The pass does not need to be installed and is convenient to use. Mobile phone users can obtain cities with a stay of more than 4 hours in 14 days by scanning codes, web pages or sending short messages, and generate green or red passes according to the stay time. This method is based on user authorization and real-time verification, and provides query service conveniently and quickly on the premise of fully protecting user privacy.

Generally speaking, travel itinerary only shows the itinerary within 14 days. If this time is exceeded, it will be recalculated, but sometimes the result will be delayed by one day. If the stay in the city is too short, it will not be displayed on the travel card. It won't take more than four hours this time. If there is a problem or deviation that causes trouble, you can contact customer service, and customer service can also solve the problem better.