This invention discloses a
route memory and reverse navigation method based on temporary WLAN, relating to the field of positioning and navigation technology. The method includes: a positioning
server receiving measurement values of signals transmitted by a user terminal according to the temporary WLAN frequency from
wireless access points, and fixed coordinates of multiple
wireless access points; calculating the real-time coordinates of the user terminal during forward movement, ordered by time, based on the measurement values and fixed coordinates, and transmitting this data to the user terminal, which then performs interpolation
smoothing on the real-time coordinates to generate a continuous forward movement trajectory; responding to a reverse navigation request from the user terminal and receiving its feedback forward movement trajectory, generating reverse path data based on the forward movement trajectory; and planning a reverse
navigation path based on the reverse path data, the user terminal's current coordinates, and forward movement parameters, and transmitting this path to the user terminal for
visual guidance. This invention achieves
route memory and accurate reverse guidance in a temporary WLAN environment.