Method and system for measuring driving speed of expressway vehicle based on road network matching

Abstract

The invention provides a method and system for measuring the driving speed of an expressway vehicle based on road network matching. The method comprises: S1, on the basis of a hidden Markov model, acquiring a driving road of a vehicle which a user takes according to the movement track of the user; S2, mapping each positioning point in the movement track to a corresponding section on the driving road, generating corresponding mapping positioning points, and connecting the mapping positioning points of all sections successively in a time sequence to form a driving track of the vehicle; and S3, according to the driving track, acquiring the driving speed of the vehicle. According to the invention, on the basis of the movement track of the user, the driving speed of the vehicle in which the located mobile phone is located on the expressway is calculated, so that the driving speed of the vehicle is monitored in real time during the whole process. Therefore, the accurate road condition information is provided for the driving vehicle; the anti-interference ability is powerful; the furious driving behavior can be warned and suppressed; and thus the risk prediction, early warning and prevention capabilities of the whole road network are enhanced.

Description

technical field [0001] The present invention relates to the technical field of traffic information, and more specifically, to a method and system for measuring driving speed of expressway vehicles based on road network matching. Background technique [0002] With the continuous acceleration of my country's industrialization and urbanization, the mileage of my country's expressways has increased rapidly, playing a vital role in intercity passenger travel and cargo transportation. The real-time and whole-process monitoring of the running speed of the expressway can not only provide accurate road condition information for traveling vehicles, but also warn and curb speeding behavior, which is more conducive to improving the risk prediction, early warning and prevention of the entire road network ability. However, most of the current expressway speed measurement methods are "point speed measurement" schemes, which make it difficult to provide real-time and full-range speed monit...

AI Technical Summary

Problems solved by technology

[0012] The present invention provides a method and system for measuring highway vehicle speed based on road network matching, which overcomes the problems of many hardware devices and lack of real-time performance required by the existing vehicle speed measurement method

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