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Travel track data-based stroke identification method

A recognition method and travel trajectory technology, which is applied to measuring devices, instruments, surveying and mapping and navigation, etc., can solve the problem of high accuracy of travel recognition and achieve the effect of high precision

Inactive Publication Date: 2012-07-25
北京建筑工程学院
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  • Description
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AI Technical Summary

Problems solved by technology

The above method solves the problem of positioning drift and jitter of the mobile phone positioning track data, and the accuracy of the itinerary recognition is high; at the same time, the method can also realize the analysis of the GPS positioning track data by adjusting the distance and time threshold

Method used

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  • Travel track data-based stroke identification method
  • Travel track data-based stroke identification method
  • Travel track data-based stroke identification method

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Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0068] The present invention provides a travel identification method based on travel trajectory data, comprising the following steps:

[0069] Step 1. Calculate the velocity of the track point;

[0070] Step 2. Merge a plurality of adjacent track points whose speeds are all below the speed threshold into a candidate stay position, wherein the stay time of the candidate stay position is from the first track point to the last track point in the plurality of track points the time interval between a track point;

[0071] Step 3. When the distance between the centers of multiple candidate stay positions and any one of the multiple candidate stay positions is less than the distance threshold, and when the first candidate stay among the multiple candidate stay positions When the t...

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Abstract

The invention discloses a travel track data-based stroke identification method. The stroke identification method comprises the following steps of: dividing track points through speed, and combining the track points with the speed lower than a certain speed threshold value into candidate remaining positions; and combining the candidate remaining positions by utilizing a distance threshold value and a time threshold value so as to determine a true remaining point. According to the stroke identification method, the problems of positioning drift and jitter of mobile phone positioning track data is solved, and the stroke identification precision is high; when 300 seconds is taken as the time threshold value and 1,100 meters is taken as the distance threshold value, the recall ratio is 87.66 percent, and the precision ratio is 81.56 percent; and meanwhile, GPS (Global Position System) positioning track data can be analyzed through adjusting the distance threshold value and the time threshold value.

Description

technical field [0001] The invention relates to a travel identification method based on travel trajectory data. This method is mainly applied to obtain the travel trajectory by analyzing the mobile phone positioning trajectory data, but it can also be applied to obtain the travel trajectory by analyzing the GPS positioning trajectory data. Background technique [0002] The traditional behavioral activity information acquisition is mainly based on residents' travel survey and activity log survey, which is carried out through manual survey. Resident travel surveys and activity log surveys have formed a complete set of survey procedures and norms. They have been used for many years at home and abroad, but they have been plagued by several problems, such as heavy burden on the victims, low survey accuracy, and huge costs. Wait. [0003] In recent years, with the development of wireless communication technology and Internet technology, devices with spatial positioning capabilit...

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Application Information

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IPC IPC(8): G01C21/00
Inventor 张健钦仇培元王晏民徐志洁
Owner 北京建筑工程学院
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