How does the itinerary code know where you have been?

The trip code judges which city base station you have been in contact with by analyzing the cell phone signaling data and call list data, so you know where you have been.

With the rapid development of social economy, everyone is enjoying the changes that science and technology have brought to our lives. Travel code can better cooperate with epidemic prevention and control, and avoid other problems. As ordinary people, we must actively cooperate with epidemic prevention and control staff in our lives, so as to make our lives better.

1. What is the trip code?

The itinerary code is a public welfare itinerary inquiry service under the guidance of the Ministry of Industry and Information Technology, and launched by China ICT Institute, China Telecom, China Mobile and China Unicom. At first, it can only be inquired by SMS, and later it was upgraded to scan code inquiry. With the continuous spread of the epidemic, the scope of itinerary code has become a system covering the whole country. The introduction of itinerary code is also to better grasp everyone's itinerary and avoid the spread of the epidemic. I hope everyone can do it in their lives.

2. What is the working principle of the trip code?

With the rapid development of social economy, people use the digital products of mobile computers more and more widely. In the process of using mobile computers, whether it is communication, texting or surfing the Internet, they need to be connected to the relevant base stations, and the specific information operators of each base station are very clear. Therefore, when we use mobile computers to generate communication in our lives, operators will also record the data and upload them to the trip code system. We only need to scan the code to see the places we have been in the last 14 days, which is also the trip code.

3. How to use the trip code correctly.

If there is a misjudgment of the trip code in our life, we must treat it rationally. We should pay attention to the freshmen. You don't record the system in every city, but your local residence time is 4 hours. Therefore, we must explain it to the epidemic prevention and control staff in time in our life to avoid adverse effects on our lives.