Vehicle load state recognition method and device based on driving behavior feature extraction

A technology of feature extraction and state recognition, which is applied to traffic control systems, instruments, and traffic flow detection of road vehicles. Wide range of effects

Active Publication Date: 2021-10-29
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a vehicle load state recognition method and device based on driving behavior feature extraction to solve the problem that the weighing method in the prior art is relatively limited in weighing methods and is easily affected by interference. The problem

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  • Vehicle load state recognition method and device based on driving behavior feature extraction
  • Vehicle load state recognition method and device based on driving behavior feature extraction
  • Vehicle load state recognition method and device based on driving behavior feature extraction

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0038] Existing vehicle load recognition methods have irreparable defects. Therefore, the present invention extracts driving behavior characteristics based on the vehicle operation data obtained from the existing heavy-duty truck online monitoring big data platform, and is used to analyze different loads under different traffic conditions. Based on the differ...

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Abstract

The invention discloses a vehicle load state recognition method and device based on driving behavior feature extraction. The recognition method includes: acquiring historical running data of a target vehicle within a preset time period and real-time running data at the current moment; Calculate the vehicle specific power and specific power interval distribution of different time granularity trajectory data based on real-time operation data; determine the specific power distribution difference of the target vehicle under different load states according to the motor vehicle specific power and specific power interval distribution; Fitting, determining the probability density function; determining the corresponding relationship between the vehicle load state discrimination threshold and the vehicle load state according to the probability density function, and identifying the load state of the target vehicle. Through the implementation of the present invention, no additional equipment is needed, the scope of application is relatively wide, and the actual recognition result will not be affected by the influence of the sensing equipment or its environment, and the accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle load detection, in particular to a vehicle load state recognition method and device based on driving behavior feature extraction. Background technique [0002] At present, there are three main methods for vehicle load status identification based on driving behavior feature extraction: one is based on vehicle static weighing system (static weighting) load identification, and the other is based on vehicle dynamic weighing system (weight-in-motion, WIM) The third is the load identification based on the Vehicle On-Board Weighing System. [0003] The vehicle static weighing system means that the vehicle measures the load of the vehicle under completely static conditions. There are three types of weighing devices: fixed, semi-fixed, and portable. Stationary weighing systems require permanent installation on a concrete frame or platform; semi-stationary weighing systems use permanent trenches and road f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0129
Inventor 宋国华张乐琦吴亦政
Owner BEIJING JIAOTONG UNIV
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