Generally the health trip code is tied to the cell phone and does not show the name.

One is because the cell phone traffic is not turned on to turn off the phone's traffic function, so that there is no appearance of this communication travel code. Secondly, the system crashed because there were too many people visiting the site, so we need to wait patiently.

In addition, if you can not use Alipay to check the trip code can send a text message query, the health code does not show the full name is due to the health code system upgrades and maintenance caused by the part of the user's information has not been updated, resulting in the health code information anomalies.

Technical principle

Communication big data itinerary card "analyzes" cell phone signaling data "through the user's cell phone is located in the location of the base station to obtain the signaling data collection, transmission and processing automation, with strict security and privacy safeguard mechanism, the query results in real time, available, convenient and fast. The query results are available in real time, convenient and fast. The data of the "communication big data itinerary card" can be generalized across the country.

The data can be used to provide comprehensive coverage of the entire country, as well as access to the international itineraries for my domestic cell phone number. These will provide scientific and accurate technical support for epidemic prevention and control, resumption of work and production, road access, and entry and exit under the premise of ensuring user information security.

The data source of the location query service provided by the travel card is "cell phone signaling data", which is obtained through the location of the base station where the user's cell phone is located. In order to ensure the continuity of communication, to realize the coverage of no blind area, to provide better quality of communication services.

The signals of two BTSs at the intersection of administrative districts may cross-cover, resulting in deviations in the results. This is possible if the user lives close to the city boundary, or if they drive long distances or take the train.