"Communication Big Data Travel Card" analyzes "mobile phone signaling data", which 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 automatic, with strict security and privacy protection mechanisms, and the query results are available in real time, which is convenient and fast.
The location of mobile phone base station needs to calculate the approximate location (not the exact location) of the user according to the communication time difference between the base station and the mobile phone, so it is impossible to query when the mobile phone is turned off or in the area with weak signal strength.
Extended data:
The location query service data provided by the travel card comes from "mobile signaling data" obtained based on the location of the base station. Therefore, in order to ensure the continuity of communication, realize the coverage without blind areas and provide better communication service quality, the signals of two base stations at the junction of administrative divisions may cross-cover, leading to the deviation of the results.
This will happen if the user lives near the city boundary, or he or she drives to a far place, takes a train and so on. Travel card is a public service, and users can use it to prove their travel.
If the management department is faced with the contradiction between the user's query results and the inspection during the actual trip, it is suggested to combine the air ticket, air ticket or other supporting materials provided by the user to make a comprehensive judgment based on the inspection results.
Baidu Encyclopedia-Communication Big Data Travel Card
Baidu Encyclopedia-Mobile Location Service
People's Network-Communication Big Data Travel Card APP Online users can use it to prove their travel.