Geographic position trajectory optimization method and device

Abstract

The invention provides a geographic position trajectory optimization method and device, which can remove abnormal points in a trajectory. In addition, repeating points in the trajectory can be removed with a trajectory compression mode to achieve the purposes of reducing the network transmission pressure and saving the disk storage space. The method comprises the following steps: acquiring original geographical position trajectory data; removing the abnormal points in the original geographical position trajectory data to obtain a geographical position abnormal point removed trajectory; compressing the geographic position abnormal point removed trajectory to obtain a geographical position optimization trajectory.

Description

technical field [0001] The invention relates to the field of computer technology and software, in particular to a method and device for optimizing a trajectory of a geographical location. Background technique [0002] The geographic location track is usually a series of location points collected by a device with a geographic positioning function (for example, a GPS (Global Positioning System) device, or a Beidou navigation device), and each location point includes at least date, time, longitude, Latitude, altitude information, and some track recording devices also include speed and other information. With the popularity of smart devices, more and more people are used to recording and sharing track records. In this process, the smart device is responsible for collecting the geographic location trajectory data, and the collected geographic location information data is analyzed, adjusted, transmitted, stored, and finally applied to the specific business system. [0003] Affec...

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Problems solved by technology

[0005] 1. Affected by the surrounding environment of the acquisition equipment (such as water surface, tall buildings, etc.), the accuracy of the geographical location acquisition equipment decreases, and the deviation distance between the geographical location track point and the normal track is large; in addition, due to the small number of visible satellites, etc., it will cause Some geographic location information is unavailable and illegal, so there are many abnormal points in the collected geographic location trajectory data;

[0006] 2. Geographical location track points can usually be collected by recording track points every other time period. When the geographic location collection device stays in a certain point or area for a long time, it will cause a problem near the same point or point. lots of repeat points

In intelligent collection equipment, most of the geographic location trajectory information data is transmitted in network environments such as GPRS / WIFI, and the existence of duplicate points will cause the transmitted data to multiply and increase the pressure of network transmission; in addition, the existence of a large number of duplicate points is still It will cause the disk storage to multiply and affect the efficiency of data query and retrieval

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