CN105178149A - Projection type calibration system of machine vision detection system for vehicle-mounted road cracks - Google Patents
Projection type calibration system of machine vision detection system for vehicle-mounted road cracks Download PDFInfo
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- CN105178149A CN105178149A CN201510526742.2A CN201510526742A CN105178149A CN 105178149 A CN105178149 A CN 105178149A CN 201510526742 A CN201510526742 A CN 201510526742A CN 105178149 A CN105178149 A CN 105178149A
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- vehicle
- machine vision
- mounted road
- road surface
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Abstract
The invention discloses a projection type calibration system of a machine vision detection system for vehicle-mounted road cracks. The projection type calibration system aims at solving the problem that currently, calibration on a vehicle-mounted road primary crack collecting system based on machine vision can not be achieved. The calibration system is mainly composed of a projector (1), a receiving plate (2) and a level gauge (3). According to the projection type calibration system of the machine vision detection system for the vehicle-mounted road cracks, the cost is low, the structure is simple, the detection accuracy is high, the accumulative errors are small, the functions are complete, the operation is easy and convenient, the installation is easy, the universality is high, the performance is reliable, and the requirements of a road primary crack detection system in a small view filed can be met.
Description
Technical field
The present invention relates to a kind of calibration equipment of checkout equipment of Vehicle Detection field, in particular, it relates to a kind of projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System.
Background technology
Highway pavement crack detection is one of important research content of traffic engineering subject, its Research Significance is the path formation detection scheme seeking to ensure that road surface supporting capacity is optimum, vehicle ride performance is best, road traffic accident is minimum, fuel consume is minimum, safeguarding in advance for highway provides sufficient advanced technology to ensure and theory support, reaches the object of road and people, vehicle harmony.
In the end of the year 2011, the speedway mileage that China is open to the traffic has reached 8.5 ten thousand kilometers.The economic development of quick growth to each department of total mileage of highway serves very important impetus, and the Long-Time Service of highway also brings unprecedented challenge to highway maintenance simultaneously.On the one hand, the magnitude of traffic flow increases sharply, the problem road pavement such as high capacity waggon overload destroys day by day serious; On the other hand, blocking up for a long time of highway can be caused in the construction of the medium-and-large-sized engineering machinery of maintenance of surface process, have a strong impact on road passage capability.Therefore, under the severe background that the end of the year 2012, China's motor vehicle car recoverable amount reached 2.4 hundred million, advanced technology theory is utilized to carry out periodic detection and quantitative assessment with detection method road pavement crackle, make it be in zone of reasonableness and actively carry out the early stage maintenance on road surface, to extend the application life of highway, the traffic capacity improving road, ensure automobile driving safety and the maintenance cost reducing highway has important theory significance and application prospect widely.
At present, mainly rest on manual measurement to the detection of road crackle, efficiency is low, low precision, and intensity of workers is large.Adopt machine vision acquires pavement image and then the method that realizes crack detection evaluation to solve above technical bottleneck, the technological progress of projection calibration system to Vehicle Detection field therefore studying vehicle-mounted road surface crackle Machine Vision Inspecting System is significant.
Summary of the invention
The present invention is directed to the present situation that cannot realize at present examining and determine crackle acquisition system of coming into being based on machine vision vehicle-mounted road surface, adopt the combination of projecting apparatus, dash receiver and level gauge provide a kind of cost compared with low, structure is simple, accuracy of detection is high, accumulated error is little, function is complete, easy and simple to handle, be easy to install, come into being the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System of crack detection system requirements in road surface in the met small field of view scope of highly versatile, dependable performance.
Consult Fig. 1, for solving the problems of the technologies described above, the present invention adopts following technical scheme to be achieved.The projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System provided by the present invention includes projecting apparatus, dash receiver and level gauge.
On the ground, the upper surface of dash receiver overlaps with the horizontal laser light datum of level gauge level gauge horizontal positioned, and projecting apparatus is tilted to down the oblique upper being positioned over dash receiver, projecting apparatus by standard road surface picture projection in the upper surface of dash receiver.
Level gauge described in technical scheme is laser demarcation formula level gauge.
Dash receiver described in technical scheme is the cuboid part of steel plate processing, and dash receiver Surface Machining is diffuse reflection surface.
Projecting apparatus described in technical scheme is universal projector.
The invention has the beneficial effects as follows:
(1) the present invention adopts the image of any known road surface of projector crackle, achieve the demarcation of multiple different crack image among a small circle, system architecture is simple, complete function, achieves and measures comprehensive calibrating of road surface crack image to vehicle-mounted road surface crackle acquisition system of coming into being.
(2) major part of the present invention adopts standard steel section to process, and first, standard steel section output is large, and machining operation is few, and cost of production is lower; Secondly, as the important accessory of measuring apparatus, adopt standard steel section to have certain intensity, can be indeformable in Long-Time Service, ensure the precision measured, the requirement of national standard to certainty of measurement can be met.
Accompanying drawing explanation
Fig. 1 is the shaft side figure of the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System;
In figure: 1. projecting apparatus, 2. dash receiver, 3. level gauge.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Consult Fig. 1, the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System includes projecting apparatus 1, dash receiver 2 and level gauge 3.
Level gauge 3 is laser demarcation formula level gauge, and level gauge 3 horizontal positioned on the ground.
The cuboid part that dash receiver 2 is processed for steel plate, dash receiver 2 Surface Machining is diffuse reflection surface, and the upper surface of dash receiver 2 overlaps with the horizontal laser light datum of level gauge 3.
Projecting apparatus 1 is universal projector, and projecting apparatus 1 is tilted to down the oblique upper being positioned over dash receiver 2, projecting apparatus 1 by standard road surface picture projection in the upper surface of dash receiver 2.
The using method of the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System: the dash receiver 2 of verification system is placed on immediately below the video camera of detection system, level gauge 3 leveling is also placed on the ground, the upper surface of dash receiver 2 is adjusted to and overlaps with the laser plane of level gauge 3, open projecting apparatus 1 by the upper surface of road surface picture projection in dash receiver 2, by the standard road surface picture on the camera acquisition dash receiver 2 of detection system, the testing result of itself and detection system is contrasted the calibrating that can complete crackle acquisition system that vehicle-mounted road surface come into being.
Claims (4)
1. the projection calibration system of a vehicle-mounted road surface crackle Machine Vision Inspecting System, it is characterized in that, the projection calibration system of described vehicle-mounted road surface crackle Machine Vision Inspecting System is made up of with level gauge (3) projecting apparatus (1), dash receiver (2);
Level gauge (3) horizontal positioned on the ground, the upper surface of dash receiver (2) overlaps with the horizontal laser light datum of level gauge (3), projecting apparatus (1) is tilted to down the oblique upper being positioned over dash receiver (2), projecting apparatus (1) by standard road surface picture projection in the upper surface of dash receiver (2).
2., according to the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System according to claim 1, it is characterized in that described level gauge (3) is for laser demarcation formula level gauge.
3. according to the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System according to claim 1, it is characterized in that the cuboid part that described dash receiver (2) is processed for steel plate, dash receiver (2) Surface Machining is diffuse reflection surface.
4., according to the projection calibration system of vehicle-mounted road surface crackle Machine Vision Inspecting System according to claim 1, it is characterized in that described projecting apparatus (1) is universal projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510526742.2A CN105178149B (en) | 2015-08-25 | 2015-08-25 | Projection type calibration system of machine vision detection system for vehicle-mounted road cracks |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510526742.2A CN105178149B (en) | 2015-08-25 | 2015-08-25 | Projection type calibration system of machine vision detection system for vehicle-mounted road cracks |
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| CN105178149A true CN105178149A (en) | 2015-12-23 |
| CN105178149B CN105178149B (en) | 2017-04-19 |
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| CN201510526742.2A Expired - Fee Related CN105178149B (en) | 2015-08-25 | 2015-08-25 | Projection type calibration system of machine vision detection system for vehicle-mounted road cracks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841934A (en) * | 2016-06-15 | 2016-08-10 | 吉林大学 | Vehicle-mounted pavement crack active vision detection system illumination influence test system |
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| EP0834736A1 (en) * | 1996-10-02 | 1998-04-08 | Etat Francais - Laboratoire Central Des Ponts Et Chaussees | Method of detecting surface flaws on a textured surface |
| CN101422787A (en) * | 2008-12-10 | 2009-05-06 | 北京科技大学 | Strip-steel flatness measuring method based on single-step phase-shift method |
| CN202298429U (en) * | 2011-09-01 | 2012-07-04 | 华澳融通(北京)科技有限公司 | Novel laser-fill-light-technology-based pavement damage detection system |
| CN103196921A (en) * | 2013-04-03 | 2013-07-10 | 中国民航大学 | Vehicle-mounted airport pavement damage microtopography image acquisition system and control evaluation method |
| CN104655639A (en) * | 2014-12-23 | 2015-05-27 | 北京恒达锦程图像技术有限公司 | Pavement crack detection method capable of accurately acquiring crack characteristics and pavement crack detection system capable of accurately acquiring crack characteristics |
| CN205062632U (en) * | 2015-08-25 | 2016-03-02 | 吉林大学 | On -vehicle road surface crackle machine vision detecting system's projection calibration system |
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2015
- 2015-08-25 CN CN201510526742.2A patent/CN105178149B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0834736A1 (en) * | 1996-10-02 | 1998-04-08 | Etat Francais - Laboratoire Central Des Ponts Et Chaussees | Method of detecting surface flaws on a textured surface |
| CN101422787A (en) * | 2008-12-10 | 2009-05-06 | 北京科技大学 | Strip-steel flatness measuring method based on single-step phase-shift method |
| CN202298429U (en) * | 2011-09-01 | 2012-07-04 | 华澳融通(北京)科技有限公司 | Novel laser-fill-light-technology-based pavement damage detection system |
| CN103196921A (en) * | 2013-04-03 | 2013-07-10 | 中国民航大学 | Vehicle-mounted airport pavement damage microtopography image acquisition system and control evaluation method |
| CN104655639A (en) * | 2014-12-23 | 2015-05-27 | 北京恒达锦程图像技术有限公司 | Pavement crack detection method capable of accurately acquiring crack characteristics and pavement crack detection system capable of accurately acquiring crack characteristics |
| CN205062632U (en) * | 2015-08-25 | 2016-03-02 | 吉林大学 | On -vehicle road surface crackle machine vision detecting system's projection calibration system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841934A (en) * | 2016-06-15 | 2016-08-10 | 吉林大学 | Vehicle-mounted pavement crack active vision detection system illumination influence test system |
| CN105841934B (en) * | 2016-06-15 | 2018-01-12 | 吉林大学 | The test system of vehicle-mounted road surface crackle Active visual inspection system illumination effect |
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| CN105178149B (en) | 2017-04-19 |
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