Generation method and generation device of frequent position trajectory based on moving target

Abstract

The invention discloses a generation method and a generation device of frequent position trajectory based on moving target, which relates to the technical field of positioning. The main purposes are to solve such problems as massive position data with various degrees of accuracy and being unable to determine the correct position trajectory of the moving target, of which the target track emerges frequently. The generation method of frequent position trajectory based on moving target includes the following steps. Information about the position of the moving target is obtained. According to locus fragment correlation function, correlation operations between locus fragments, which are in correspondence with the information about the position, are implemented. According to a pre-set method of dividing a grid, the information about the position after the correlation operations is divided. According to an established motion state filter and a default feature point extraction algorithm, the feature point of the information about the position after the division of the grid is extracted and a resampling trajectory. According to time attributes, position attributes, direction attributes and a default space clustering algorithm, the resampling trajectory of the feature point is clustered in the form of sub-trajectory. After scanning and clustering, the sub-trajectory becomes the frequent position trajectory.

Description

technical field [0001] The present invention relates to the field of positioning technology, in particular to a method and device for generating frequent position trajectories based on moving objects. Background technique [0002] In order to locate and track moving targets, technologies such as location service system GPS, passive reconnaissance and positioning system, and satellite-borne airborne remote sensing system are widely used. Among them, the trajectory of moving targets can be obtained by real-time positioning of the moving targets . [0003] At present, it is possible to locate and track the position of a moving target for a long time to obtain a cumulative position trajectory. This long-term positioning and tracking requires high-precision positioning data, such as the data recorded by the GPS system, but when the obtained position When the data accuracy is low or the location accuracy is unstable, a large amount of location data with different accuracy will be...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention is proposed to provide a method and device for generating frequent location trajectories based on moving objects. location data, resulting in the inability to determine the accurate location trajectory of the moving target with frequent occurrences of the target trajectory, which affects the analysis and processing of the moving target

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