CN201354442Y - Two-way laser texture detection device - Google Patents
Two-way laser texture detection device Download PDFInfo
- Publication number
- CN201354442Y CN201354442Y CNU2009200318201U CN200920031820U CN201354442Y CN 201354442 Y CN201354442 Y CN 201354442Y CN U2009200318201 U CNU2009200318201 U CN U2009200318201U CN 200920031820 U CN200920031820 U CN 200920031820U CN 201354442 Y CN201354442 Y CN 201354442Y
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- roughness
- tire
- notebook computer
- laser
- shell
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Abstract
The utility model relates to a two-way laser texture detection device for detecting the surface texture roughness of roads, which comprises a trolley type framework composed of a buckle housing, a solid walking tire and a hand push rod, wherein the tire is arranged on the lower end of the housing, the inner upper side of the housing at two sides of the tire is provided with roughness laser displacement sensors capable of downwards sending detecting laser beams, a notebook computer holder is vertically connected on the upper side of the housing, and a notebook computer connected with the roughness laser displacement sensors is positioned on the notebook computer holder. When at work, the two roughness laser displacement sensors carry out road surface detection simultaneously as an operator pushes the device forwards, and then the collected data are processed via the notebook computer so as to realize the quick detection of road surface roughness. The two-way laser texture detection device has the advantages of simple and novel structure, convenient use, high measurement accuracy, excellent stability and the like.
Description
Technical field
The utility model belongs to road quality checkout gear technical field, relates to a kind of two-way laser texture checkout gear that is used to detect the pavement texture roughness.
Background technology
The trend that is develop rapidly with domestic expressway construction is compared, and the present situation that China's Road Detection level is backward more shows outstanding at present.The pavement texture roughness is an important indicator in the pavement detection, and what it characterized is the microstructure on road surface, is determining the traveling security energy.In the pavement design, in order to guarantee the steady and safety of rainy day driving, require the road surface to have enough cling properties, its pavement texture is coarse more good more.At present the cling property of road pavement has been stipulated two kinds of sand patch method and portable pendulum testers in the GB, and these two kinds of methods all are to adopt the method that sampling Detection is carried out on tested road surface to estimate.The volume that sand patch method requires to have certain compactness is that 25cm, diameter are that the sand grains of 0.15～0.3mm is poured on the tested road surface, the flat board that pushes away that is stained with sheet rubber with diameter 50mm, bottom surface is firmly outwards spread sand grains out from inside to outside, sand is inserted in the rough road surfaces space, as far as possible sand is spread out circular, calculate the average diameter of institute's sand bedding then, the substitution correlation formula calculates the pavement structural depth value, and diameter is littler, the measured point cling property is described better.Portable pendulum tester then requires to sprinkle water in the measured point, makes under its free pendulum after a brake pad is risen to a level altitude, observe afterwards its by with ground friction after the angle that rises, angle is bigger, illustrates that the measured point cling property is poorer.These two kinds of methods all require manual operations, are cooperated by two testing staff at least usually and finish.On speedway, even isolation traffic, also constantly there is hidden danger in testing staff's personal safety, usually to lean on testing staff's walking fortnight just can finish in 100 kilometers long detection highway sections, because error in reading and gross error that artifact causes are unavoidable especially, precision is difficult to guarantee in the operation.
The index that sand patch method provides is to be the depth-averaged value of the road surface microcosmic hollow of benchmark with the road surface smoothed curve in fact, and the diameter of sand grains has reacted the resolution ratio of this measuring method.According to the sand patch method principle, relevant technologies personnel in this area have designed the laser texture detector that adopts the automatic fast detecting surface roughness of laser displacement sensor in recent years.But adopt single laser sensor detection method for laser texture detector well known in the art at present, the corresponding deficiencies such as randomness is big, poor repeatability that also have more.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and then provides that a kind of project organization is simple novel, easy to use, certainty of measurement is high, the two-way laser texture checkout gear of good stability.
For achieving the above object and the two-way laser texture checkout gear of development has a cart type frame of being made up of button cover shell, solid walking tire and handspike, tire is installed in the shell lower end, the both sides that are positioned at tire in the enclosure respectively are provided with a roughness laser displacement sensor that can send detection laser beam downwards, above shell, uprightly be provided with the notebook computer carriage, on computer bracket, be placed with the notebook computer that connects with the roughness laser displacement sensor.
The proposition of the utility model technical solution comes from the Mathematical Modeling of designer according to the automatic fast detecting surface roughness of laser displacement sensor of sand patch method principle design, as shown in Figure 3.Number in the figure I is a laser displacement sensor, and II is the inspection vehicle tire, and III is for detecting the smoothed curve on road surface, and IV is the texture structure of road surface reality; Ho is the distance of wheel shaft to the road surface smoothed curve; H is the detection distance of wheel shaft to the road surface hollow.Suppose in testing process, to meet the following conditions: 1). in the driving process, sensor remains unchanged to the distance on ground, 2). the travel smoothed curve on track and road surface of sensor is parallel, and so, ho will be constant, h≤-ho represented the textural characteristics of each point; The variance of the each point by asking certain-length can obtain the sanding value of this tested segment.For above two conditions, the utility model satisfies condition 1 by being installed in sensor on the rigid wheel and limiting travel speed, directly satisfies condition 2 by selecting suitable wheel for use.Like this when operating personnel promote two-way laser texture checkout gear and advance forward, two laser displacement sensors road pavement simultaneously detect, and the data that collect are carried out data through notebook computer and handled, and can realize the fast detecting of surface roughness.
Compare with existing similar technology, the advantage that the utility model had is: 1). adopt the two-way roughness to detect, roughness detects density and doubles, and the result is truer, objective; 2). adopt the hand propelled structure, use easily; 3). designed the notebook computer carriage, easy to operate; 4). adopt the rotation brace summer, keep the stable of inspection vehicle when stopping, regaining during work; 5). mechanism's compactness, stable and reliable for performance; 6). adopt the solid tyre structure, be convenient to error correction.
Description of drawings
Fig. 1 is the side direction structural representation of a specific embodiment of the utility model.
Fig. 2 overlooks to the work structuring schematic diagram for Fig. 1's.
Fig. 3 is the Mathematical Modeling figure according to the automatic fast detecting surface roughness of laser displacement sensor of sand patch method principle design.
Each label is respectively in Fig. 1～2: 1-left side roughness laser displacement sensor, 2 batteries, 3-right side roughness laser displacement sensor, 4-tire, 5-shell, 6-notebook computer carriage, the 7-notebook computer, the 8-handspike, 9-rotates feet, 10-travel distance sensor, 11-bat-handle switch box.
The specific embodiment
Referring to Fig. 1 and Fig. 2, two-way laser texture checkout gear described in the utility model comprises a cart type frame and parts such as the roughness laser displacement sensor 1,3 established according to frame and notebook computer 7.The cart type frame by the button cover shell 5 that solid tyre 4 is housed down, tiltedly stand on the handspike 8 of shell 5 back upper places, the notebook computer carriage 6 that uprightly is connected with above shell 5 forms.Above two roughness laser displacement sensors 1,3 are located in the shell 5 and position is in the both sides of tire 4.Rotation feet 9 is housed in shell 5 posterior ends, puts down maintenance during parking and detect the stable of car body, regain during work.Be provided with the travel distance sensor 10 of cooperating in the corresponding position of tire 4 lateral margins and shell 5 inner edges, be used to detect stroke.Notebook computer 7 is placed on the computer bracket 6.
When device described in the utility model is used for testing process, open notebook computer earlier, operation roughness capture program; Open the laser instrument switch then, rotate up feet, promote trolley and advance with 5 kilometers/hour speed; Detect the texture depth at wheelmark place simultaneously by the two-way roughness laser sensor in the checkout gear, calculate the average texture degree of depth on every 10cm road surface through algorithm routine then.
Claims (3)
1, a kind of two-way laser texture checkout gear, it is characterized in that having one one by button cover shell (5), the cart type frame that solid walking tire (4) and handspike (8) are formed, tire (4) is installed in shell (5) lower end, the both sides that are positioned at tire (4) above in shell (5) respectively are provided with a roughness laser displacement sensor (1 that can send detection laser beam downwards, 3), uprightly be provided with notebook computer carriage (6) in shell (5) top, on computer bracket (6), be placed with and roughness laser displacement sensor (1,3) notebook computer of Lian Jieing (7).
2, two-way laser texture checkout gear according to claim 1 is characterized in that the corresponding position at tire (4) lateral margin and shell (5) inner edge is provided with the travel distance sensor (10) of cooperating.
3, two-way laser texture checkout gear according to claim 1 is characterized in that being equipped with in shell (5) posterior end rotation feet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200318201U CN201354442Y (en) | 2009-01-23 | 2009-01-23 | Two-way laser texture detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200318201U CN201354442Y (en) | 2009-01-23 | 2009-01-23 | Two-way laser texture detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354442Y true CN201354442Y (en) | 2009-12-02 |
Family
ID=41410782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200318201U Expired - Fee Related CN201354442Y (en) | 2009-01-23 | 2009-01-23 | Two-way laser texture detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354442Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635057A (en) * | 2012-04-28 | 2012-08-15 | 哈尔滨工业大学 | Asphalt concrete texture laser measuring instrument |
| CN106012779A (en) * | 2016-06-10 | 2016-10-12 | 陈魏魏 | High-speed hard road shoulder detector |
| CN110186402A (en) * | 2019-06-05 | 2019-08-30 | 北京国土丹青工程技术有限公司 | A kind of device and method of rapid survey roughness of ground surface |
-
2009
- 2009-01-23 CN CNU2009200318201U patent/CN201354442Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635057A (en) * | 2012-04-28 | 2012-08-15 | 哈尔滨工业大学 | Asphalt concrete texture laser measuring instrument |
| CN102635057B (en) * | 2012-04-28 | 2014-04-02 | 哈尔滨工业大学 | Asphalt concrete texture laser measuring instrument |
| CN106012779A (en) * | 2016-06-10 | 2016-10-12 | 陈魏魏 | High-speed hard road shoulder detector |
| CN110186402A (en) * | 2019-06-05 | 2019-08-30 | 北京国土丹青工程技术有限公司 | A kind of device and method of rapid survey roughness of ground surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20110123 |