Method and apparatus for determining historical trajectory of terminal

Abstract

The embodiment of the invention provides a method and apparatus for determining a historical trajectory of a terminal. The method comprises the following steps: determining a target time period for generating the historical trajectory of a target terminal; selecting multiple target positioning coordinates within the target time period, wherein the distances between the target positioning coordinates and an AP deployed on a route in advance are smaller than a preset distance threshold; determining multiple paths between each two target positioning coordinates with adjacent times as first suspected routes; calculating the distance between each first suspected route between the each two target positioning coordinates with adjacent times and the target terminal; determining the first suspectedroute having the minimum distance with the each two target positioning coordinates with adjacent times as a first matched route; and connecting the first matched routes to generate the historical trajectory of the target terminal. By application of the method and apparatus provided by the embodiment of the invention, when the offset between the generated historical trajectory and the actual trajectory of the terminal is reduced, the skipping problem of the historical trajectory is avoided, and the user friendliness of the historical trajectory of the terminal is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for determining a terminal's historical trajectory. Background technique [0002] In the terminal historical trajectory service based on WLAN (Wireless Local Area Networks, wireless local area network) wireless indoor positioning, the real-time positioning coordinates of the terminal, that is, the terminal coordinates given by the WLAN positioning system, are stored, and later analyzed, the terminal positioning coordinates are stored according to The chronological order is concatenated to obtain the historical trajectory of the terminal. [0003] The positioning accuracy of the WLAN positioning system is not high enough, and the system noise brings jumping problems to the positioning coordinates, which makes the positioning coordinates of the final terminal located anywhere around the actual position, which in turn causes the generated his...

AI Technical Summary

Problems solved by technology

The closer the terminal is to the AP, the higher the positioning accuracy of the WLAN positioning system, which increases the density of AP deployment in the WLAN positioning system, which improves the positioning accuracy of the WLAN positioning system to a certain extent, and reduces the generated historical trajectory and the actual trajectory of the terminal. However, this cannot eliminate the jumping problem caused by system noise to the positioning coordinates, and it cannot effectively improve the user-friendliness of the historical trajectory of the terminal

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