Pass through the epidemic area, turn off the mobile phone and communicate with the big data travel card. Can you track it?

Go through the epidemic area, turn off your mobile phone, and use the big data travel card to communicate and track.

This software, together with China Information and Communication Research Institute, China Telecom, China Mobile and China Unicom, provides users with itinerary inquiry service, which plays an important role in locking the source of infection, keeping in close contact with people and preventing and controlling the spread of the epidemic.

Because the principle of "communication big data travel card" is that after the three major telecom operators obtain user authorization, they can effectively locate the location of the user's mobile phone according to the mobile phone signaling data, so as to find the owner himself.

When the mobile phone is turned on, it will automatically search the surrounding base stations and choose the access with the best signal. The location of the mobile phone can be determined by detecting the parameters of the received signal, such as the arrival time, arrival direction and arrival signal strength.

Communication big data travel card:

Communication big data travel card is a free inquiry service for 65.438+600 million mobile phone users nationwide through the location of the base station where the user's mobile phone is located, which is an upgrade of the previous service of inquiring about travel through SMS.

The communication big data journey is based on telecom big data, and the interface is provided by the three major operators. Just fill in the mobile phone number and verification code and confirm the authorization, and you don't need to fill in the ID number and home address, and you don't need to collect other personal information. The operation is simpler and safer, and the privacy of users is fully protected.

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.

This may happen if the user lives near the city boundary or travels long distances by car or train.