Abstract:

The historical trajectory detection plays a vital role and has the practical significance for commercial userbehavior analysis， the identity of the police suspect landing and surveillance of key. Current detection methods usemobile client silence to collect user information， or use operators to shunt data， or shooting combined with artificialanalysis. The ways have many disadvantages such as the sample is limited， the effective information is difficult toextract and the analytical efficiency is low. A historical track detection based on Wi-Fi protocol was proposed， andspecific system design and function relization were given which provided a new way to analyze the behavior of users.

Key words: Wi-Fi, trajectory detection, probe request