CN203768774U - Rut form simulator for accuracy calibration of laser rut detection apparatus - Google Patents
Rut form simulator for accuracy calibration of laser rut detection apparatus Download PDFInfo
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- CN203768774U CN203768774U CN201420099347.1U CN201420099347U CN203768774U CN 203768774 U CN203768774 U CN 203768774U CN 201420099347 U CN201420099347 U CN 201420099347U CN 203768774 U CN203768774 U CN 203768774U
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- rut
- electric expansion
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Abstract
The utility model discloses a rut form simulator for accuracy calibration of a laser rut detection apparatus. The rut form simulator comprises an expansion link supporting layer, a plurality of electric expansion links, a flexible rubber plate, a plurality of rigid rollers and a rigid apparatus support, wherein both ends of the plurality of rigid rollers are movably connected with the rigid apparatus support, every two rigid rollers are in contact with each other in the horizontal direction, at least one of the plurality of rigid rollers is a driving roller, the expansion link supporting layer is arranged in the circumferential directions of the plurality of rigid rollers, the plurality of electric expansion links are evenly fixed on the expansion link supporting layer and connected with a computer by virtue of data connecting wires, and the flexible rubber plate is arranged in the circumferential directions of the plurality of electric expansion links. The rut form simulator is used for performing the accuracy calibration on an existing laser rut detection apparatus and further performing modification or calibration on the existing detection apparatus.
Description
[technical field]
The utility model belongs to highway construction technical field, is specifically related to a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision.
[background technology]
In recent years, along with China's speedway and the traffic volume increase rapidly, vehicle channelization is travelled and heavy duty, overload problems appears suddenly day by day, and rut has become a kind of main damage form of China's asphalt pavement of highway.China < < highway technology situation evaluation criteria > > (JTG H20-2007) and < < asphalt highway maintenance technology standard > > (JTJ073.2-2001) be the pith using rut depth detection as pavement detection all.
At present, China's rut detection main method is divided into manual detection method and automation detection method.Manual detection method is mainly 3m ruler method, and automation detection method is mainly ultrasonic Detection Method and laser rut detection method.Wherein, 3m ruler method human factor affects greatly and data do not possess representativeness, and ultrasonic wave rut testing equipment is because single-sensor precision is lower than laser sensor, the width of pavement detection is less than the width that sensor detects beam, the installation requirement of sensor is strict, be subject to ectocine large, can only vertically downward, therefore do not have in China's popularization and application.
In recent years, China's extensive use be multiple spot laser technology, this technology is not subject to the impact of illumination, weather etc., when laser probe quantity is more, can reflect comparatively truly road Cross Section situation, the testing result of the rut degree of depth is also comparatively accurate; Many colleges and universities and R&D institution have carried out a large amount of research and practices in laser rut detection technical field, and researched and developed polytype laser rut detection equipment, the laser road conditions rapid detection system (CICS) of Int. of Highway Sciences, Ministry of Communications for example, the 31 of Chang An University road laser displacement sensor pavement track inspection vehicle, the JG-1 type laser pavement condition detecting system of Nanjing BiQi Science Co., Ltd, and the Intelligent road inspection vehicle of military large remarkable science and technology limited Company etc.
Although laser detection equipment has the advantages such as strong interference immunity, its accuracy of detection can be subject to the impact of laser probe quantity, installation site, inspection vehicle lateral shift etc.There are some researches show, 9 point type laser detecting apparatus have reached 29.3% to the detection error of the rut degree of depth, and the rut detection error of 13 point type laser detecting apparatus is still higher, is 14%.
Therefore, be necessary current laser rut testing instrument to make precision calibration, can reduce to a great extent like this detection error of rut testing instrument.
[utility model content]
The purpose of this utility model is for the deficiencies in the prior art, and a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision is provided.
For achieving the above object, the utility model adopts following technical scheme:
A rut morphological Simulation device of demarcating for laser rut detection equipment precision, comprising: expansion link supporting layer, some electric expansion bars, rubber flexible plate, some rigidity rollers and equipment rigid support; Wherein, the two ends of some rigidity rollers are flexibly connected with equipment rigid support, and every two rigidity rollers contact in the horizontal direction, in some rigidity rollers, has one at least for driving wheel, expansion link supporting layer is arranged on the circumferential of some rigidity rollers, on it, be evenly fixed with some electric expansion bars, some electric expansion bars are connected with computer by data connecting line, and rubber flexible plate is arranged on the circumferential of some electric expansion bars.
The utility model further improves and is, has one at least for driving wheel in the rigidity roller (5) at two ends.
The utility model further improves and is, also comprises for this rut morphological Simulation device is carried out to planeness and calibrates to obtain level(l)ing bubble instrument.
The utility model further improves and is, the flexible travel range of electric expansion bar is 0-10cm.
The utility model further improves and is, electric expansion bar adopts YNT-03 type electric expansion bar.
The utility model further improves and is, the spacing being connected between two electric expansion bars is 1-5cm.
Compared with prior art, the utlity model has following advantage:
1, can carry out precision calibration to existing laser rut detection equipment, and then existing checkout equipment is improved or calibrated;
2, the lateral shift of change modeling rut detection equipment that can be by rut position, left and right on flexible board on road, and then try to achieve the impact of lateral shift;
3, can demarcate other indexs except the rut degree of depth, such as rut width, rut length, rut rut groove sidewall inclination angle, the planeness of rut rut groove sidewall and the indexs such as mean radius of curvature of rut rut groove;
4, can be for laboratory rut morphological Simulation and rut data analysis.
[accompanying drawing explanation]
Fig. 1 is 7 kinds of standard types of existing rut listed in standard, the 7 Plays ruts simulation transverse shapes of demarcating as checkout equipment.
Fig. 2 is workflow schematic diagram of the present utility model.
Fig. 3 and Fig. 4 are that the utility model utilizes rut simulator to carry out two kinds of enforcement view of checkout equipment demarcation.
Fig. 5 is the internal construction schematic diagram of rut simulator in the utility model.
Wherein: 1 be data connecting line, 2 for expansion link supporting layer, 3 for electric expansion bar, 4 for rubber flexible plate, 5 for rigidity roller, 6 connecting screws that are rigidity roller and equipment rigid support, 7 for the pre-rut detection equipment of demarcating, 8 for equipment rigid support, 9 for level(l)ing bubble instrument, 10 be the test point of laser detection equipment on rut simulator.
[specific embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further details.
Referring to Fig. 3 to Fig. 5, a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision of the utility model, comprising: expansion link supporting layer 2, some electric expansion bars 3, rubber flexible plate 4, some rigidity rollers 5 and equipment rigid support 8; Wherein, the two ends of some rigidity rollers 5 are flexibly connected with equipment rigid support 8, and every two rigidity rollers 5 contact in the horizontal direction, in some rigidity rollers 5, has one at least for driving wheel, expansion link supporting layer 2 is arranged on the circumferential of some rigidity rollers 5, on it, be evenly fixed with some electric expansion bars 3, some electric expansion bars 3 are connected with computer by data connecting line 1, and rubber flexible plate 4 is arranged on the circumferential of some electric expansion bars 3.In addition, also comprise for this rut morphological Simulation device is carried out to planeness and calibrate to obtain level(l)ing bubble instrument 9.
Wherein, electric expansion bar 3 adopts YNT-03 type electric expansion, and its flexible travel range is 0-10cm, and the spacing being connected between two electric expansion bars 3 is 1-5cm.
The utility model controls to make rubber flexible plate 4 to carry out deformation by computer to electric expansion bar 3, and then generation is similar to the rut form object of (as shown in Figure 1).By expansion link supporting layer 2 driving electric expansion links 3 and the rotation of rubber flexible plate 4 on rigidity roller 5, carry out simulated field rut detection dynamic process, rut detection data and computer simulation data are analyzed, can draw existing pre-demarcation rut detection equipment 7 precision and the rut detection equipment 7 of existing pre-demarcation is improved.
The whole instrument of the utility model is of a size of length * wide * height=4m * 1m * 1m.Expansion link supporting layer 2 top vertical, horizontal have all been laid YNT-03 type electric expansion bar, horizontal, longitudinal pitch is 1-5cm, and the flexible travel range of electric expansion bar 3 is 0-10cm, and its bottom is controlled by computer by data wire, maximum load is 1500N, and input voltage is 12/24V DC.
General rut fracture morphology has 7 kinds of forms, as shown in Figure 1.Staff, in rut calibration process, can therefrom choose several form of fractures according to actual conditions and carry out simulated calibration.Referring to Fig. 2 the utility model, choose the 7th kind of fracture morphology and simulate, 13 track laser checkout equipments are demarcated simultaneously, concrete operation step is as follows:
1) adjust the pre-rut detection equipment 7 of demarcating and the position between rut morphological Simulation device, make it to detect and conform to reality;
2) some electric expansion bars 3 of rut morphological Simulation device are connected with computer by data connecting line 1, by 9 pairs of rut morphological Simulation devices of level(l)ing bubble, carry out planeness calibration.Open rut morphological Simulation device, rut morphological Simulation device power supply used provides by computer;
3) staff is by the different rut forms of computer simulation, and control signal is reached to the electric expansion bar 3 of rut simulator by data connecting line 1, now, each electric expansion bar 3 can be from the flexible adjustment of action so that the different rut form of rubber flexible plate 4 simulation, simultaneously the stroke data of different electric expansion bars 3 all can show on computers, can simulate the rut of the darkest 10cm;
4) according to 7 kinds of rut common schemas (as shown in Figure 1) of " T0973-3 " defined in < < highway subgrade road surface on-the-spot test rules > >, calculate, by the stroke data of the different expansion links 3 of Computer Analysis, can obtain rut depth capacity, rut width and length, rut rut groove sidewall inclination angle of simulation etc.;
5) after the deformation of rubber flexible plate is stable, staff opens the rut detection equipment 7 of pre-demarcation, the rut three-dimensional configuration of simulating on rut simulator is detected, by rigidity roller 5, expansion link supporting layer 2 driving electric expansion links 3 and rubber flexible plate 4 rotate on roller, simulated field rut detection dynamic process, rolling speed can be regulated and controled by computer.In addition,, for rut detection precision is improved, same rut form, when expansion link supporting layer 2 is along the complete circle of rigidity roller 5 roll detection, should repeat above-mentioned steps again and measure more than at least twice;
6) the rut depth data of detection and computer simulation data are contrasted, if detect the error of data and analogue data, be no more than 5%, can illustrate that so the precision of this rut detection device has reached engineering detecting requirement; If error surpasses 5%, the precision of this rut detection device cannot meet engineering detecting requirement, need to further improve rut testing instrument;
7) detector 7 after improving is demarcated according to above-mentioned steps again, until accuracy of detection is qualified.This rut degree of depth calibration result is as shown in table 1:
Table 1: the comparative analysis (unit: mm) that detects data and analogue data
In addition, for the impact of rut detection equipment lateral shift, simulation implementation process is as follows:
1) according to above-mentioned 7 steps, carry out rut morphological Simulation and checkout equipment demarcation, as shown in Figure 3, wherein, 10 is the test point of laser detection equipment on rut simulator;
2) again according to above-mentioned 7 steps, simulate same rut form, offset distance d on cross-sectional direction
1, d
2, d
2, the skew of simulating vehicle in road driving, as shown in Figure 4;
3) result that contrast is repeatedly measured, and in conjunction with offset distance d, analyze the impact that research vehicle shift is measured rut.
Claims (6)
1. a rut morphological Simulation device of demarcating for laser rut detection equipment precision, it is characterized in that, comprising: expansion link supporting layer (2), some electric expansion bars (3), rubber flexible plate (4), some rigidity rollers (5) and equipment rigid support (8); Wherein, the two ends of some rigidity rollers (5) are flexibly connected with equipment rigid support (8), and every two rigidity rollers (5) contact in the horizontal direction, in some rigidity rollers (5), has one at least for driving wheel, expansion link supporting layer (2) is arranged on the circumferential of some rigidity rollers (5), on it, be evenly fixed with some electric expansion bars (3), some electric expansion bars (3) are connected with computer by data connecting line (1), and rubber flexible plate (4) is arranged on the circumferential of some electric expansion bars (3).
2. a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision according to claim 1, is characterized in that, has one at least for driving wheel in the rigidity roller (5) at two ends.
3. a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision according to claim 1, is characterized in that, also comprises for this rut morphological Simulation device is carried out to planeness and calibrates to obtain level(l)ing bubble instrument (9).
4. a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision according to claim 1, is characterized in that, the flexible travel range of electric expansion bar (3) is 0-10cm.
5. a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision according to claim 1, is characterized in that, electric expansion bar (3) adopts YNT-03 type electric expansion bar.
6. a kind of rut morphological Simulation device of demarcating for laser rut detection equipment precision according to claim 1, is characterized in that, the spacing being connected between two electric expansion bars (3) is 1-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099347.1U CN203768774U (en) | 2014-03-05 | 2014-03-05 | Rut form simulator for accuracy calibration of laser rut detection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420099347.1U CN203768774U (en) | 2014-03-05 | 2014-03-05 | Rut form simulator for accuracy calibration of laser rut detection apparatus |
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| CN203768774U true CN203768774U (en) | 2014-08-13 |
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| CN201420099347.1U Expired - Fee Related CN203768774U (en) | 2014-03-05 | 2014-03-05 | Rut form simulator for accuracy calibration of laser rut detection apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758714A (en) * | 2016-12-30 | 2017-05-31 | 中公高科养护科技股份有限公司 | The scaling method of beam rut detection device and cross section determine method to a kind of multiple spot altogether |
| CN107974907A (en) * | 2017-12-31 | 2018-05-01 | 交通运输部公路科学研究所 | A kind of calibrating installation and its calibration method of surface evenness detector |
| CN107974908A (en) * | 2017-12-31 | 2018-05-01 | 交通运输部公路科学研究所 | A kind of detection device of surface evenness detector |
| CN108333072A (en) * | 2018-01-17 | 2018-07-27 | 交通运输部公路科学研究所 | A kind of road surface dynamic deflection calibration method and device based on respondent behavior reconstruct |
| CN108871243A (en) * | 2018-09-18 | 2018-11-23 | 中公高科养护科技股份有限公司 | A kind of scaling method and system of the installation parameter of rut detection device |
-
2014
- 2014-03-05 CN CN201420099347.1U patent/CN203768774U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758714A (en) * | 2016-12-30 | 2017-05-31 | 中公高科养护科技股份有限公司 | The scaling method of beam rut detection device and cross section determine method to a kind of multiple spot altogether |
| CN107974907A (en) * | 2017-12-31 | 2018-05-01 | 交通运输部公路科学研究所 | A kind of calibrating installation and its calibration method of surface evenness detector |
| CN107974908A (en) * | 2017-12-31 | 2018-05-01 | 交通运输部公路科学研究所 | A kind of detection device of surface evenness detector |
| CN107974907B (en) * | 2017-12-31 | 2023-09-22 | 交通运输部公路科学研究所 | Calibrating device and calibrating method for road surface flatness detector |
| CN108333072A (en) * | 2018-01-17 | 2018-07-27 | 交通运输部公路科学研究所 | A kind of road surface dynamic deflection calibration method and device based on respondent behavior reconstruct |
| CN108871243A (en) * | 2018-09-18 | 2018-11-23 | 中公高科养护科技股份有限公司 | A kind of scaling method and system of the installation parameter of rut detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |