CN110055867A - A kind of asphalt pavement antiskid security risk real-time perception method for early warning - Google Patents
A kind of asphalt pavement antiskid security risk real-time perception method for early warning Download PDFInfo
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- CN110055867A CN110055867A CN201811265250.2A CN201811265250A CN110055867A CN 110055867 A CN110055867 A CN 110055867A CN 201811265250 A CN201811265250 A CN 201811265250A CN 110055867 A CN110055867 A CN 110055867A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
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Abstract
The invention discloses a kind of asphalt pavement antiskid security risk real-time perception method for early warning, this method passes through the velocity sensor and pressure sensor that are embedded in paving, the wheel load load and velocity information that can be acted on real-time perception asphalt pavement, in conjunction with the antiskid risk model established, the model considers face textural characteristics simultaneously, the interaction of tire material feature and the two, apparatus of transport high-speed cruising (running car can be analyzed in real time, takeoff and landing process) during existing antiskid security risk, and with sound, light, pre-warning signal is transferred to the intelligent early-warning terminal of driver by the forms such as vibration, realize " the sense of asphalt pavement antiskid security risk, it passes, know, control " integration, a kind of reliable method of science is provided for antiskid security risk real-time control during apparatus of transport high-speed cruising, with important theory significance And application value.
Description
Technical field
The present invention relates to road Risk-warning technical fields, and in particular to a kind of asphalt pavement antiskid security risk is felt in real time
Know method for early warning.
Background technique
With the rapid development of Highway Cause, highway transportation speed is also correspondinglyd increase, at the same time, the quantity of traffic accident
Also it is being continuously increased.Therefore the antiskid security performance on research road surface becomes extremely important, it is to guarantee traffic safety and maintenance
Important indicator.Currently, researchers at home and abroad also attach great importance to the research of the antiskid Risk-warning of asphalt pavement.Currently comment
The research emphasis of valence antiskid risk is mostly that the texture structure either research delivery vehicle Tyre structure in research paving is anti-to establish
Sliding risk model.The method for being currently used for evaluation asphalt concrete pavement antiskid risk performance, inspection corresponding with these methods
There is also biggish differences for measurement equipment.But in general, these methods can be attributed to Indirect evaluation method and direct evaluation assessment two
Big classification.
The Indirect evaluation method of bituminous pavement antiskid risk performance is the construction depth by measuring asphalt concrete pavement,
And then road pavement skid resistance makes evaluation.The method mainly uses laser cross section instrument, light scanner, probe tracking instrument, annular
Texture tester and coefficient of dynamics frictiograph come test microtexture and the macrostructure in face to obtain data analysis to
It is concluded that.
The direct evaluation of bituminous pavement antiskid risk performance refers to the coefficient of friction by Instrument measuring road table.The method master
Use pendulum friction coefficient determinator, dynamic frictional coefficient tester, profile frictional coefficient test carriage, locking wheel friction testing vehicle
The coefficient of friction that road surface is directly measured with friction coefficient instrument carries out antiskid risk assessment.
But current method is primarily present two aspect problems: (1) data that detection device provides need subsequent processing
It can use and not have real-time；(2) these pavement skid resistance risk safety evaluations only only account for pavement structure or only consider wheel
The factors such as tire imposed load, Relative sliding speed speed and tire pressure do not account for mutual between tire and road surface
Effect.It is even more impossible to test the antiskid performance of the complicated weather such as rainwater, dark ice, therefore, it is impossible to authentic and valid judge apparatus of transport
The antiskid performance of tire and road face during high-speed cruising.
And there is also following disadvantages:
(1) artifical influence factor is more in data acquisition, and the authenticity of data cannot be protected；
(2) data acquisition is slower, and detection device automation, the level of informatization are low, and Data Post heavy workload occupies people
Power, material resources influence the feedback and utilization of information；
(3) frictional behaviour can only passively be expressed, it is difficult to the expression road face antiskid performance of active；
(4) data measured by can not be analyzed quickly and real-time early warning is to driver.
Therefore, the antiskid safety risk model of delivery vehicle tire and road face during high speed driving, energy how to be established
Enough precognition risks in real time and the scientific method for carrying out early warning, are of great significance.
Summary of the invention
The purpose of the present invention is to provide a kind of asphalt pavement antiskid security risk real-time perception method for early warning, pass through foundation
Antiskid safety risk model under high-speed condition between the road carrying tool wheel Tai He face is delivery vehicle in lower antiskid of running at high speed
Security risk early warning real-time control provides a scientific basis.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of asphalt pavement antiskid security risk real-time perception method for early warning, which is characterized in that the method includes as follows
Step:
(1) the antiskid risk model in antiskid early warning section is established: using self-focusing three-dimensional surface measurement instrument, to the section road
The surface texture in face is scanned imaging, obtains the three-D grain image in face, analyzes to obtain face textural characteristics by data
Parameter includes fractal dimension H, texture elevation h0, upper limit wave vector ql, lower limit wave vector qL, amplification factor ζ, proportionality coefficient p (ζ)；Then
The road face textural characteristics parameter measured is substituted into persson formula, establishes the feature antiskid risk model in Risk-warning section, it will
The parameter input of the antiskid risk model calculates analysis system, i.e. the antiskid risk mould in the utilisation system Real-Time Evaluation section
Type, antiskid risk model that is to say that persson formula is as follows:
In formula, μ is real-time coefficient of friction, and Im is the imaginary number position in plural number；Angle (rad) between wave vector and speed,
γ indicates Poisson's ratio,Indicate the viscoelastic modulus of rubber tyre.
(2) data acquisition and transmission: the stress value б of apparatus of transport on the road face in acquisition antiskid early warning section0With real-time speed
V is spent, and with the traveling real-time transmission data of apparatus of transport；
(3) data of acquisition are updated in antiskid risk model, obtain apparatus of transport tire equator face when running at high speed
Real-time friction coefficient μ, pass through the early warning value μ with standard0It being compared, judging apparatus of transport by whether there is when the section
Antiskid risk；As μ > μ0When, the apparatus of transport is not by having antiskid risk when the section, as μ≤μ0When, which passes through
There are antiskid risks when the section；
(4) if analysis system judgement is there are antiskid risk, pre-warning signal terminal will be with sound, light or vibration mode by early warning
Signal is transferred to driver, when risk is not present in judgement, then will not generate pre-warning signal.
Preferably, the stress value б0It is by being respectively arranged FBG in the road face in antiskid early warning section with real-time speed v
What compression sensor and photoelectric sensor measured, wherein compression sensor is used to measure the stress value б of apparatus of transport0, light
Electric transducer is used to measure the real-time speed v of apparatus of transport.
Preferably, the pre-warning signal terminal is buzzer, red light and/or vehicle-mounted (airborne) vibration alarm.
Further, the early warning section roadside that the buzzer is arranged in cabin interior or driver is facilitated to observe,
The early warning section roadside for facilitating driver to observe is arranged in the red light；And when there are antiskid risk, the red lamp flass.
Vehicle-mounted (airborne) vibration alarm is set to cabin interior, and when there are antiskid risk, vibration alarm is to vibrate
Form prompts the driver section, and there are antiskid risks.
The present invention has the advantage that
(1) present invention uses 3-D scanning technology, can obtain three-dimensional regular point cloud data accurately to obtain face-
The three-dimensional micro-morphology profile of tire scan quickly, in high precision to tire-road face, and reduction degree is high, and accuracy is high, obtains
Parameter accuracy it is high.
(2) data that apparatus of transport is measured in high-speed cruising can be updated to rapidly antiskid risk model by the present invention
In, judge there are that pre-warning signal can be transferred to driver in real time when antiskid risk, to realize delivery vehicle high speed row
Risk control when sailing.
(3) present invention can analyze antiskid risk in real time, reach the timely early warning of system, driver is adjusted in time
Judgement, is conducive to drive safely, and risk identification when running at high speed for delivery vehicle, risk analysis, risk monitoring and control provide strong
Method for early warning.
It (4), being capable of real-time perception road face ring by the acceleration transducer and environmental information sensor that are embedded in paving
Border and structural information can analyze apparatus of transport high-speed cruising (vapour in conjunction with the antiskid risk dynamic evaluation model established in real time
Vehicle traveling, takeoff and landing process) during existing antiskid security risk, and pre-warning signal is passed in the form of sound, light, vibration etc.
Defeated (airborne or vehicle-mounted) intelligent early-warning terminal to driver realizes asphalt pavement antiskid security risk " feel, pass, knowing, controlling " one
Body provides a kind of reliable method of science for antiskid security risk real-time control during apparatus of transport high-speed cruising, has
Important theory significance and application value.
Detailed description of the invention
Fig. 1 is asphalt pavement antiskid security risk real-time perception early warning process.
Fig. 2 is the three-D grain image in the section scanned in embodiment 1.
Fig. 3 is the three-D grain image in the section scanned in embodiment 2.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..The present invention provides a kind of drips
Green paving antiskid security risk real-time perception method for early warning is not restricted to method described in scheme elaboration.Therefore it is all according to
According to the equivalent change or modification that model and principle described in this patent are done, should all include within the scope of present patent application.
Embodiment 1
One section of test segment has been selected, the real-time perception early warning of antiskid security risk is carried out to the asphalt pavement, is specifically included
Following steps:
Step 1: it establishes the antiskid risk model in antiskid early warning section: using high-precision self-focusing three-dimensional surface measurement instrument,
Imaging is scanned to the surface texture in the test segment road face of selection, obtains the three-D grain image in face (such as Fig. 2 institute
Show), it analyzes to obtain fractal dimension H=2.85, the texture elevation h in the section by data0=2.1 × 10-3, upper limit wave vector ql=
4800m-1, lower limit wave vector qL=1200m-1, amplification factor ζ=10, proportionality coefficient p (ζ)=10-2Equal roads face textural characteristics parameter,
By the viscoelastic modulus of the road face texture parameter, Poisson's ratio γ=0.5 and the rubber tyre being calculated that measurePersson formula is substituted into, the feature antiskid risk model in Risk-warning section is established, by the wind
The parameter input of dangerous model calculates analysis system, and the risk model formula is as follows:
In formula: μ is real-time coefficient of friction, and Im is the imaginary number position in plural number；Angle (rad) between wave vector and speed；
Step 2: the FBG pressure that encapsulation is combined by polymer and metal material is arranged in the road face in antiskid early warning section
Sensor measures the stress value б of apparatus of transport1=0.8MPa can accurately measure traveling in antiskid early warning using photoelectric sensor
The real-time speed v of section apparatus of transport1=20m/s, and as the traveling of apparatus of transport transmits data in time.
Step 3: the data that data collection terminal measures can be real-time transmitted to antiskid risk model, calculate carrying work at once
Has the real-time friction coefficient μ in the tire equator face when running at high speed1=0.61, pre-set early warning friction coefficient μ0=0.45, by
In μ1≥μ0, according to judgment formula (as μ > μ0When, the apparatus of transport is not by having antiskid risk when the section, as μ≤μ0When,
There are antiskid risks when the apparatus of transport is by the section；) it is believed that apparatus of transport does not have antiskid risk at this time；At this point, pre-
Alert terminal will not then generate pre-warning signal, and driver can be with the safety section.
Embodiment 2
One section of test segment has been selected, the real-time perception early warning of antiskid security risk is carried out to the asphalt pavement, is specifically included
Following steps:
Step 1: it establishes the antiskid risk model in antiskid early warning section: using high-precision self-focusing three-dimensional surface measurement instrument,
Imaging is scanned to the surface texture in the test segment road face of selection, obtains face three-D grain image (as shown in Figure 3),
It analyzes to obtain fractal dimension H=2.2, the texture elevation h in the section by data0=7 × 10-4, upper limit wave vector ql=6000m-1、
Lower limit wave vector qL=600m-1, amplification factor ζ=15, proportionality coefficient p (ζ)=10-2Equal roads face textural characteristics parameter, by what is measured
The viscoelastic modulus of road face texture parameter, Poisson's ratio γ=0.5 and the rubber tyre being calculatedPersson formula is substituted into, the feature antiskid risk model in Risk-warning section is established, by this
The parameter input of risk model calculates analysis system, and the risk model formula is as follows
In formula: μ is real-time coefficient of friction, and Im is the imaginary number position in plural number；Angle (rad) between wave vector and speed；
Step 2: the FBG pressure that encapsulation is combined by polymer and metal material is arranged in the road face in antiskid early warning section
Sensor measures the stress value б of apparatus of transport1=0.8MPa can accurately measure traveling in antiskid early warning using photoelectric sensor
The real-time speed v of section apparatus of transport1=30m/s, and as the traveling of apparatus of transport transmits data in time.
Step 3: the data that data collection terminal measures can be real-time transmitted to antiskid risk model, calculate carrying work at once
Has the real-time friction coefficient μ in the tire equator face when running at high speed1=0.42, pre-set early warning friction coefficient μ0=0.45, by
In μ1≤μ0, according to judgment formula (as μ > μ0When, the apparatus of transport is not by having antiskid risk when the section, as μ≤μ0When,
There are antiskid risks when the apparatus of transport is by the section；) it is believed that there are antiskid risks for apparatus of transport at this time；At this point, vehicle
Carrying (airborne) vibration alarm, there are antiskid risks with vibration mode prompt driver section.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of asphalt pavement antiskid security risk real-time perception method for early warning, which is characterized in that the method includes walking as follows
It is rapid:
(1) the antiskid risk model in antiskid early warning section is established: using self-focusing three-dimensional surface measurement instrument, to the section road face
Surface texture is scanned imaging, obtains the three-D grain image in face, analyzes to obtain face textural characteristics parameter by data
Including fractal dimension H, texture elevation h0, upper limit wave vector ql, lower limit wave vector qL, amplification factor ζ, proportionality coefficient p (ζ)；Then it will survey
The road face textural characteristics parameter obtained substitutes into persson formula, establishes the feature antiskid risk model in Risk-warning section, this is resisted
The parameter input of sliding risk model calculates analysis system, i.e. the antiskid risk model in the utilisation system Real-Time Evaluation section, resists
Sliding risk model that is to say that persson formula is as follows:
In formula, μ is real-time coefficient of friction, and Im is the imaginary number position in plural number；Angle (rad) between wave vector and speed, γ are indicated
Rubber tyre Poisson's ratio,Indicate the viscoelastic modulus of rubber tyre.
(2) data acquisition and transmission: the stress value б of apparatus of transport on the road face in acquisition antiskid early warning section0With real-time speed v, and
With the traveling real-time transmission data of apparatus of transport；
(3) data of acquisition are updated in antiskid risk model, obtain the reality in apparatus of transport tire equator face when running at high speed
When friction coefficient μ, by with standard early warning value μ0It being compared, judging apparatus of transport by whether there is antiskid wind when the section
Danger；As μ > μ0When, the apparatus of transport is not by having antiskid risk when the section, as μ≤μ0When, which passes through the section
When there are antiskid risks；
(4) if analysis system judgement is there are antiskid risk, pre-warning signal terminal will be with sound, light or vibration mode by pre-warning signal
It is transferred to driver, when risk is not present in judgement, then will not generate pre-warning signal.
2. asphalt pavement antiskid security risk real-time perception method for early warning according to claim 1, which is characterized in that described
Stress value б0It is by being respectively arranged FBG compression sensor and photoelectricity in the road face in antiskid early warning section with real-time speed v
What sensor measured, wherein compression sensor is used to measure the stress value б of apparatus of transport0, photoelectric sensor is for measuring load
The real-time speed v of fortune tool.
3. asphalt pavement antiskid security risk real-time perception method for early warning according to claim 1, which is characterized in that described
Pre-warning signal terminal is buzzer, red light and/or vehicle-mounted/airborne vibration alarm.
4. asphalt pavement antiskid security risk real-time perception method for early warning according to claim 3, which is characterized in that described
The early warning section roadside that buzzer is arranged in cabin interior or driver is facilitated to observe.
5. asphalt pavement antiskid security risk real-time perception method for early warning according to claim 3, which is characterized in that described
The early warning section roadside for facilitating driver to observe is arranged in red light.
6. the asphalt pavement antiskid security risk real-time perception method for early warning according to claim 3 or 5, which is characterized in that
When there are antiskid risk, the red lamp flass.
7. asphalt pavement antiskid security risk real-time perception method for early warning according to claim 3, which is characterized in that described
Vehicle-mounted/airborne vibration alarm be set to cabin interior, when there are antiskid risk, the vibration alarm is to vibrate shape
Formula prompts the driver section, and there are antiskid risks.
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Cited By (4)
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| CN111814247A (en) * | 2020-06-22 | 2020-10-23 | 同济大学 | Aircraft landing safety risk assessment system based on wet and slippery state perception |
| CN112114122A (en) * | 2020-09-04 | 2020-12-22 | 昆明学院 | Characterization method of viscoelastic mechanical property of rubber material |
| CN114441436A (en) * | 2021-12-20 | 2022-05-06 | 中国公路工程咨询集团有限公司 | Analysis method for evaluating anti-skid performance based on pavement texture |
| CN116523414A (en) * | 2023-06-29 | 2023-08-01 | 深圳市鑫冠亚科技有限公司 | Production management method and system for composite nickel-copper heat dissipation bottom plate |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111814247A (en) * | 2020-06-22 | 2020-10-23 | 同济大学 | Aircraft landing safety risk assessment system based on wet and slippery state perception |
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| CN114441436A (en) * | 2021-12-20 | 2022-05-06 | 中国公路工程咨询集团有限公司 | Analysis method for evaluating anti-skid performance based on pavement texture |
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| CN116523414A (en) * | 2023-06-29 | 2023-08-01 | 深圳市鑫冠亚科技有限公司 | Production management method and system for composite nickel-copper heat dissipation bottom plate |
| CN116523414B (en) * | 2023-06-29 | 2023-09-05 | 深圳市鑫冠亚科技有限公司 | Production management method and system for composite nickel-copper heat dissipation bottom plate |
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