Big Data Trip Card obtains the user's location information through the location of the base station where the user's cell phone is located, which can be used nationwide to truly achieve a network coverage of the whole country, and can also query the user's domestic cell phone number for the international trips, due to the fact that this service uses the data of the base station. In order to ensure the continuity of communication, to achieve no blind coverage, administrative division junction of the two places of the base station signal may overlap, resulting in deviation of the results, the use of other certifications can be combined with the adjustment