Road bump condition and road type identification based automatic speed adjustment method and system

A road type, automatic speed regulation technology, applied in character and pattern recognition, vibration measurement in solids, measurement of vibration, etc., can solve problems such as hidden dangers of traffic accidents, discomfort of passengers, and prone to traffic accidents

Active Publication Date: 2016-07-06
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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AI Technical Summary

Problems solved by technology

But when the driver miscalculates the road conditions of the road itself, including the degree of potholes and the coefficient of friction, excessive speed will be a hidden danger of traffic accidents
On the other hand, when drivers rely on experience to drive, in most cases the driver considers more about their own comfort level, and does not take into account the comfort level of passengers and the driving speed suitable for the current road conditions
When the car is driving on a bumpy road, the excessive speed will not only cause discomfort to the passengers, but also have a serious impact on the service life of the car
At the same time, traffic accidents are prone to occur when driving at high speed on roads with too small friction coefficient

Method used

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  • Road bump condition and road type identification based automatic speed adjustment method and system
  • Road bump condition and road type identification based automatic speed adjustment method and system
  • Road bump condition and road type identification based automatic speed adjustment method and system

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0066] The present invention comprises the steps of: collecting vibration signals of vehicles traveling on different roads through a three-axis accelerometer; performing corresponding denoising on the collected vibration signals, and then obtaining the function components of eigenmodes through empirical mode decomposition (EMD) ; Extract energy from each eigenmode component and combine them as an energy vector; encode the normalized energy vector and input it into the bumpy situation classifier for training; collect the vibration signal of the unknown road, and obtain the energy vector through calculation, Input the encoded energy vector into the bumpy situation classifier to obtain the bumpy situation classification information; at the same time, collect images of different roads through the camera; after cropping the collected images, calculat...

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Abstract

The invention relates to the technical field of automatic control, in particular to a road bump condition and road type identification based automatic speed adjustment method and system. The invention provides the road bump condition and road type identification based automatic speed adjustment method and system, which can dynamically identify a road bump condition and a road type and feed back the road bump condition and the road type to a smart travel system to perform speed upper limit adjustment. The method and system can dynamically identify the road bump condition and the road type and feed back the road bump condition and the road type to the smart travel system, and the travel system can automatically adjust the speed upper limit according to an identification result, thereby preventing accidents and ensuring the riding comfort of passengers.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an automatic speed regulation method and system based on road bumps and road type identification. Background technique [0002] With the improvement of people's living standards, automobiles have increasingly become an indispensable means of transportation for people, and intelligent automobile systems have become a hot topic in domestic research. When the driver drives the car, the control of the speed of the vehicle often depends on the congestion of the road. When the road is not congested, the driver often drives at the speed he is used to, and the driver will rely on his own experience to adjust the speed. But when the driver miscalculates the road conditions of the road itself, including the degree of potholes and the coefficient of friction, excessive speed will be a hidden danger of traffic accidents. On the other hand, when the driver is relying on experience ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G01H1/12
CPCG01H1/00G06V20/588G06F18/2411G06F18/295
Inventor 张钦宇赵国钦韩啸林威
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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