Mass track information processing method, system and device

Abstract

The invention discloses a massive track information processing method, system and device, and the method comprises the steps: selecting a proper granularity to carry out the segmentation of a two-dimensional space, and obtaining a plurality of discretized blocks; selecting a plurality of characters corresponding to the blocks to obtain a corresponding character set; sampling the track of the moving body according to the same time sequence to obtain a track information character string; the system comprises a space segmentation module, a block symbolization module and a track information acquisition and generation module. The device comprises a data acquisition device, a processor and a memory. By adopting the method, the system and the device, character string, data compression, desensitization, storage optimization and analysis can be carried out on the tracks of mass moving bodies, mass track information can be efficiently stored and analyzed, the method, the system and the device have the advantages of being low in storage overhead and capable of inquiring and analyzing the tracks, meanwhile, a certain privacy protection function is achieved, and the method, the system and the device are suitable for popularization and application. And technical support can be provided for related work.

Description

technical field [0001] The invention relates to the technical fields of data security and big data analysis, and in particular to a method, system and device for processing massive trajectory information. Background technique [0002] In the physical space, any device with positioning function, such as mobile phones, shared bicycles, and connected cars, can generate motion trajectories in the information space. These devices that generate location information are referred to as moving bodies in this paper. The spatial motion pattern of the moving body comes from the "footprint" information of the moving body, and the footprint is an abstraction of an observation record of the moving body's position. For example, cameras on the road monitor passing vehicles, and the "footprints" of all vehicles on the road can be extracted from these video information forms, which can be used by traffic authorities to analyze the position and speed of vehicles. [0003] Performing analysis a...

AI Technical Summary

Problems solved by technology

However, the existing technology generates a huge amount of trajectory data of massive moving objects, which is too large compared to the available computing resources, often causing computing bottlenecks. In addition, there are trajectory information containing sensitive information of the moving objects themselves, which is difficult to desensitize, and there are hidden dangers in data security.

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