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Road network matching method and system

A road network matching and matching technology, applied in the transportation field, can solve problems such as small coverage, data skew, and unsatisfactory road network matching effect

Active Publication Date: 2018-12-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these data can solve certain problems, there are still some deficiencies, such as data skew, small coverage, etc. Therefore, the road network matching effect is not ideal

Method used

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  • Road network matching method and system

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Embodiment Construction

[0090] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0091] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0092] figure 1 It is a schematic flowchart of the road network matching method of the present invention. Such as figure 1 As shown, the method includes:

[0093] Step 101: Obtain the mapping relationship betwe...

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Abstract

The invention discloses a road network matching method and system. The method comprises the following steps: acquiring a road section mapping relation between a base station and a covered region; acquiring mobile phone signaling data of a user; cleaning the mobile phone signaling data; determining all stay points of the user; determining multiple sections of tracks of the user; carrying out feature extraction on each section of the track of the user; determining the trip mode corresponding to each section of the track by adopting a decision tree algorithm; extracting all tracks in which the trip mode are vehicles, and generating a set of to-be-matched tracks; determining similar historical tracks corresponding to each section of the to-be-matched track in the set of the to-be-matched tracks; carrying out interpolation on the to-be-matched tracks according to the similar historical tracks, so as to obtain an updated set of the to-be-matched tracks; converting base station sequences corresponding to each section of the tracks into a road section sequence; and determining a matching road section sequence according to a hidden Markov model, so as to obtain a road network matching result. According to the method and system, the covering range of the road network matching can be increased, and the road network matching precision can be increased.

Description

technical field [0001] The invention relates to the field of transportation, in particular to a method and system for road network matching. Background technique [0002] Road network matching is one of the key steps in trajectory data processing. Generally, the trajectory data we obtain has a certain deviation from the user's actual location due to equipment, signal, accuracy, etc. The acquired trajectory data can be matched through the road network matching algorithm. In the actual road network, determining the user's road network data is conducive to subsequent research on issues such as urban traffic and population distribution. Most of the current research is based on vehicle GPS data for road network matching, such as the data uploaded to the server by the GPS device installed in the taxi, and the GPS data uploaded by the mobile phone software. Although these data can solve certain problems, there are still some deficiencies, such as data skew, small coverage, etc. Th...

Claims

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 杨永健黄秋阳王恩黄丽平
Owner JILIN UNIV
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