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Bituminous pavement anti-sliding security risk real-time sensing pre-warning method

A safety risk and pavement technology, applied in resources, instruments, electrical digital data processing, etc., can solve the problems of manpower, material resources, slow data collection, automation, and low degree of informatization, achieving high degree of restoration and high accuracy Effect

Pending Publication Date: 2019-07-26
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are two main problems in the current method: (1) The data provided by the detection equipment needs subsequent processing before it can be used and is not real-time; (2) These road surface anti-skid risk safety evaluations only consider the road surface structure or only the tire action load , relative slip velocity, and tire pressure, without taking into account the interaction between the tire and the road surface
[0007] (1) There are many human-influenced factors in the data collection process, and the authenticity of the data cannot be guaranteed;
[0008] (2) Data collection is slow, testing equipment is automated and informatized, and data post-processing workload is heavy, which takes up manpower and material resources and affects the feedback and utilization of information;
[0009] (3) The friction performance can only be expressed passively, and it is difficult to actively express the anti-skid performance of the road surface;
[0010] (4) The measured data cannot be quickly analyzed and given real-time warning to the driver

Method used

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  • Bituminous pavement anti-sliding security risk real-time sensing pre-warning method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A section of test road was selected, and the anti-skid safety risk real-time perception and warning of the asphalt pavement was carried out, which specifically included the following steps:

[0035] Step 1: Establish the anti-skid risk model of the anti-skid warning road section: use a high-precision self-focusing three-dimensional surface measuring instrument to scan and image the surface texture of the road surface selected for the test section, and obtain the three-dimensional texture image of the road surface (such as figure 2 shown), through data analysis, the fractal dimension H=2.85 and the texture elevation h 0 =2.1×10 -3 , upper limit wave vector q l =4800m -1 , lower limit wave vector q L =1200m -1 , magnification ζ=10, proportional coefficient p(ζ)=10 -2 Equal pavement texture characteristic parameters, the measured pavement texture parameters, Poisson's ratio γ = 0.5 and the calculated viscoelastic modulus of the rubber tire Substituting the persson ...

Embodiment 2

[0041] A section of test road was selected, and the anti-skid safety risk real-time perception and warning of the asphalt pavement was carried out, which specifically included the following steps:

[0042] Step 1: Establish the anti-skid risk model of the anti-skid warning road section: use a high-precision self-focusing three-dimensional surface measuring instrument to scan and image the surface texture of the road surface selected for the test section, and obtain a three-dimensional texture image of the road surface (such as image 3 shown), through data analysis, the fractal dimension H=2.2 and the texture elevation h 0 =7×10 -4 , upper limit wave vector q l =6000m -1 , lower limit wave vector q L =600m -1 , magnification ζ=15, proportional coefficient p(ζ)=10 -2 Equal pavement texture characteristic parameters, the measured pavement texture parameters, Poisson's ratio γ = 0.5 and the calculated viscoelastic modulus of the rubber tire Substituting the persson formula...

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Abstract

The invention discloses a bituminous pavement anti-sliding security risk real-time sensing pre-warning method. According to the bituminous pavement anti-sliding security risk real-time sensing pre-warning method, a speed sensor and a pressure sensor are buried in a pavement, the wheel-loaded load applied to the bituminous pavement and speed information can be sensed in real time, and anti-siding security risks existing in the high-speed traveling (vehicle running and airplane taking-off and landing) process of transporting tools can be analyzed in real time by combining an established anti-sliding risk model which considers the pavement texture characteristics, the tire material characteristics and the mutual effect of the pavement texture characteristics and the tire material characteristics at the same time; and pre-warming signals are transmitted to an intelligent pre-warning terminal of a driver in the modes of sound, light, vibration and the like, integration of sensing, transmission, awareness and control over the bituminous pavement anti-sliding security risks is realized, a scientific and reliable method is provided for real-time control of the anti-sliding security risks in the high-speed traveling process of the transporting tools, and the bituminous pavement anti-sliding security risk real-time sensing pre-warning method has significant theoretical significance and application value.

Description

technical field [0001] The invention relates to the technical field of road risk early warning, in particular to a method for real-time perception and early warning of asphalt pavement anti-skid safety risks. Background technique [0002] With the rapid development of the road industry, the speed of road transportation has also increased accordingly, and at the same time, the number of traffic accidents is also increasing. Therefore, it is very important to study the anti-skid safety performance of the road surface, which is an important index to ensure driving safety and maintenance. At present, researchers at home and abroad also attach great importance to the research on anti-skid risk warning of asphalt pavement. The current research focus on evaluating the anti-skid risk is mostly to study the texture structure of the pavement or the structure of the vehicle tire to establish the anti-skid risk model. The methods currently used to evaluate the anti-skid risk performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/01G06F17/50G06Q10/06
CPCE01C23/01G06Q10/0635G06F30/20
Inventor 钟科孙明志刘朝旭
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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