[time] 2020-12-01T09:40:56+01:00 [team_name] CorNav [team_institution] National University of Defense Science and technology [logolink] [system_name] langping an [website] [track] 4 [reference_person] langping an [email] anlp_gfkd@163.com [description] We use the shoe algorithm to detect the zero velocity, and integrate it with the navigation framework in the extended Kalman filter algorithm to solve the position and attitude. In addition, we judge the change of motion state from the data. [references]