How does the communication travel card record the travel?

The technical principle of communication travel card to record travel is through analysis? "Cell phone signal data" records the travel position. That is, the mental data of the mobile phone is obtained through the location of the base station where the user's mobile phone is located, and the location and distance traveled by the user are judged.

The data source of the location query service provided by the travel card is "mobile phone signaling data", which is obtained through the location of the base station where the user's mobile phone is located. In order to ensure communication continuity, realize coverage without blind areas and provide better communication service quality, the signals of base stations in the two places at the junction of administrative divisions may cross-cover, resulting in deviation of results.

Development course of communication big data travel card;

Since 2020 1 and February 2020 13, the SMS inquiry services provided by the three major operators have covered more than 200 million users.

2. On February 29th, 2020, SMS query was upgraded to scan code query, providing a unified web query portal.

3. On March 6th, 2020, the function of inquiring about overseas visiting places was launched on the "Communication Big Data Travel Card", which can inquire about the information of overseas countries or regions visited by mobile phone users in the previous 14 days, and timely find out the problems of missing, missing and falsely reporting tourism information.

In September, 20021year, in order to help people travel safely, the national government service platform integrated the health code and travel code into one page, and opened Alipay's health code to see the travel code at the same time. This means that the health code and travel code have fully realized a page of "two in one" nationwide.

The above contents refer to Baidu Encyclopedia-Communication Big Data Travel Card.