Why does the communication travel card in WeChat applet display abnormal data?

The reason why the communication travel card in WeChat applet shows abnormal data is because there is no recorded data. The trip calculation was completed in the background of the operator, and the result was delayed by one day. For example, the travel data calculated on March 5th is before March 4th 14 days (between February 20th and March 4th). Because the service uses base station data.

In order to ensure continuous communication and realize no blind area coverage, the signals of base stations in the two places at the junction of administrative divisions may cross-cover, resulting in deviation of the results, which can be adjusted according to other proofs. The query results page will be marked with four colors: green, yellow, orange and red, and the rules will be adjusted in real time according to the actual situation.

Technical principle of communication big data travel card

"Mobile phone signaling data" is obtained through the location of the base station where the user's mobile phone is located. The collection, transmission and processing of signaling data are all automatic, with strict security and privacy protection mechanisms. The query results are available in real time, which is convenient and fast. The data of "Traffic Big Data Travel Card" can be used nationwide.

To truly achieve comprehensive national coverage, you can also check the international itinerary of my domestic mobile phone number. On the premise of ensuring user information security, these will provide scientific and accurate technical support for epidemic prevention and control, resumption of work and production, road traffic, entry and exit, etc.

Refer to the above? Baidu Encyclopedia-Communication Big Data Travel Card