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A Vehicle Speed ​​Tracking Method Based on Adaptive Extended Kalman Filter

A technology of extended Kalman and vehicle speed, applied in the field of vehicle speed tracking based on adaptive extended Kalman filter, can solve the problems of low safety and high probability of vehicle accident, and achieve the effect of reducing the incidence rate

Active Publication Date: 2021-10-26
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of low security and high probability of vehicle accidents in the existing information transmission mode between vehicles, the present invention provides a vehicle speed tracking method based on adaptive extended Kalman filter

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  • A Vehicle Speed ​​Tracking Method Based on Adaptive Extended Kalman Filter
  • A Vehicle Speed ​​Tracking Method Based on Adaptive Extended Kalman Filter
  • A Vehicle Speed ​​Tracking Method Based on Adaptive Extended Kalman Filter

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Embodiment Construction

[0107] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0108] refer to figure 1 , a vehicle speed tracking method based on quantization adaptive extended Kalman filter, the present invention is based on a kind of information interaction model (such as figure 1 shown). In the intelligent networked transportation system, firstly, the orientation difference between the roadside unit and the vehicle system is quantified by the quantitative formula, secondly, the acceleration is predicted by the autoregressive moving average method, and finally the position is predicted by the adaptive extended Kalman filter. The vehicle speed tracking method comprises the following steps:

[0109] 1) In the intelligent networked transportation system, the DSRC technology is used to automatically identify the driving vehicle and obtain relevant data to realize the information interaction between the vehicle system and the roadside u...

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Abstract

A vehicle speed tracking method based on adaptive extended Kalman filter, including the following steps: First, in the intelligent networked traffic system, the vehicle is automatically identified through DSRC technology and relevant data is obtained to realize the vehicle system and the roadside unit. Information interaction; then, for the collected relevant information, first quantify the azimuth difference between the roadside unit and the vehicle system through the quantization formula, secondly predict the acceleration through the autoregressive moving average method, and finally use the adaptive extended Kalman filter to calculate the speed Prediction; finally, broadcast the processed information to the roadside unit, so as to facilitate the next information interaction with the vehicle system. The invention provides a vehicle speed tracking method based on adaptive extended Kalman filter.

Description

technical field [0001] The invention belongs to the field of traffic, in particular to a vehicle speed tracking method based on an adaptive extended Kalman filter under an intelligent networked traffic system. Background technique [0002] China is the most populous country in the world. Since the reform and opening up, with the rapid development of my country's economy and the improvement of people's living standards, private cars have begun to enter every household, which is very convenient for family members to travel. However, the popularization and popularization of vehicles has also made the urban traffic environment worsening day by day, and there have been traffic phenomena such as unbalanced traffic flow, traffic congestion, rear collisions, and side collisions. Along with weak infrastructure and traffic network congestion, the number of road traffic accidents is increasing day by day, and the high incidence of traffic accidents is sounding the alarm to the whole so...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/30
CPCG06Q10/04G06Q50/40
Inventor 钱丽萍黄玉蘋冯安琪冯旭吴远黄亮
Owner ZHEJIANG UNIV OF TECH