CN104949649B - Road surface non-planeness measurement device - Google Patents
Road surface non-planeness measurement device Download PDFInfo
- Publication number
- CN104949649B CN104949649B CN201510297087.8A CN201510297087A CN104949649B CN 104949649 B CN104949649 B CN 104949649B CN 201510297087 A CN201510297087 A CN 201510297087A CN 104949649 B CN104949649 B CN 104949649B
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- China
- Prior art keywords
- road
- road surface
- gyroscope
- measurement
- laser ranging
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
- G01C7/02—Tracing profiles of land surfaces
- G01C7/04—Tracing profiles of land surfaces involving a vehicle which moves along the profile to be traced
Abstract
The present invention provides a kind of road surface non-planeness measurement device, including guiding mechanism, measure running gear, gyroscope, contactless velocity sensor, laser ranging system and calculating storage device, guiding mechanism is articulated on towing motorcar, running gear is measured with guiding mechanism to be connected, gyroscope, contactless velocity sensor and laser ranging system, which are fixed on, to be measured on running gear, automobile drives the device when driving, by the gyroscope measurement road angle of gradient, contactless velocity sensor measures speed of operation, laser ranging system measures laser emission point to the distance of road surface, measured road surface both macro and micro unevenness is obtained by calculating storage device.The helpfulness of the measuring device is, by setting up longitudinal traction Gan Deng mechanisms, the influence of body of a motor car pitching, inclination, vertical vibration to measuring device is can effectively eliminate, keeps measuring device athletic posture unaffected, measurement effect is effectively improved, reduces measurement cost, improves measurement efficiency.
Description
Technical field
The present invention relates to a kind of road surface non-planeness measurement devices, belong to road survey apparatus field.
Background technology
Vehicle will produce vibration when driving on road, and road surface unevenness is to lead to vehicle during vehicle use
The main exciting source of vibration, road injustice makes vehicle generate vibration under steam, the power of vehicle is lost and influences vehicle multiplies
The durability that the comfort and parts of seat use.In field of road, road surface unevenness is also pavement of road engineering
One of important deliberated index of quality, non-flatness measurement is detected through construction quality of pavement, evaluation is checked and accepted and operation phase road surface
The links such as maintenance.Research and analyse road surface unevenness, reasonable construction road surface model to Vehicle Engineering and road engineering
All have significance.Due to the complexity and its importance of road surface non-planeness measurement, current measuring instrument is mainly wrapped
Include static profile survey and dynamic profile survey two major classes.
Static profile survey is a kind of fixed measurement method of benchmark.When measuring road surface elevation, a fixation is established
Benchmark, the deviation numerical value between road surface and benchmark is measured, to obtain the measurement data of road surface unevenness.Using this
It is using the horizontal datum that instrument provides as fixation that the typical instrument of principle, which has level meter and mark post measurement etc., mark post mensuration,
Benchmark, this measurement method can obtain accurate longitudinal data, but that there are observed efficiencies is low, the scope of application is small, artificial work
Measure big defect.Currently, being mostly used during road construction, being unsuitable in complicated highway section application.
Since road surface unevenness can be divided into long wave and shortwave two types, using the direct measurement wheel of servo-actuated benchmark
It is more accurate, quick that the dynamic of mark vertical section measures.Contact type measurement instrument follows the fluctuating on ground by measurement wheel, to calculate
Wheel utilizes vehicle-mounted acceleration along the vertical deviation on road surface, such as France's APL profile of road analyzers, this kind of longitudinal profile analyzer
Meter establishes inertial reference system, by test wheel measurement vehicle body with the relative displacement between road surface, and by defeated with accelerometer
The quadratic integral for going out signal seeks difference to eliminate the influence of vehicle body itself vibration, thus obtains each point height of road surface vertical section.
In actual use, this quasi-instrument obtains displacement signal by being integrated to vibration acceleration signal, due in signal acquisition process,
Many noise signals are mixed into actual acceleration signal, by integral process twice, noise signal is also amplified, and makes to pass through
The body vibrations displacement signal distortion that integrated acceleration obtains leads to dynamic to eliminate the influence of vehicle body itself vibration
Measurement effect is poor.To improve measurement effect, reducing equipment cost, raising road surface non-planeness measurement efficiency, need to develop energy
The automatic road surface non-planeness measurement device eliminated body vibrations and influenced.
Invention content
It is an object of the invention to the bowing between solving road surface irregularity measuring device and towing motorcar from structure
It faces upward, roll and the movement interference problem of vertical vibration etc., ensureing the measuring device premise consistent with towing motorcar longitudinal velocity
Under, non-planeness measurement device athletic posture is unaffected and can carry out independent measurement.
The present invention is to solve the problems, such as that technical solution used by relevant art is：
The road surface non-planeness measurement device of invention, including guiding mechanism, measure running gear, is gyroscope, non-contact
Formula velocity sensor, laser ranging system and calculating storage device, it is characterised in that：The guiding mechanism is articulated in automobile hook
On, it measures running gear and is connected with guiding mechanism, gyroscope, contactless velocity sensor, laser ranging system and calculating are deposited
Storage device, which is mounted on, to be measured on running gear, and the angle of gradient of gyroscope measurement road, contactless velocity sensor measures traveling
Speed, laser ranging system measure laser emission point to the distance of road surface, and above-mentioned parameter input calculates storage device, passes through
Theoretical formula method goes out the unevenness on tested road surface.
The guiding mechanism of above-mentioned road surface non-planeness measurement device, which is characterized in that guiding mechanism include draw hook,
Fixed block under fixed block, draw hook on draw hook, stub, longitudinal traction bar, guide pad, be oriented to connecting plate, be oriented to connecting cover plate,
Lateral traction bar, guiding mechanism longitudinal traction bar front end the stub of fixed block can rotate under draw hook, after longitudinal traction bar
End can rotate in the endoporus of guide pad, and guide pad can move vertically along the rectangular preiection for being oriented to connecting plate.
The measurement running gear of above-mentioned road surface non-planeness measurement device, which is characterized in that measure running gear packet
Include measuring device frame, front axle, rear axle and by identical bearing, bearing cover, the bearing seat of honour, bearing base, steel wheel, steel wheel lid
Board group at the steel wheel group of front, rear, left and right four, measuring device frame front end shaft hole sleeve, can be around lateral traction on lateral traction bar
Bar rotates, and four wheels of the running gear are steel wheel, and the outboard wheel of coaxial upper two steel wheels is away from less than tyre width.
Above-mentioned road surface non-planeness measurement device, which is characterized in that the gyroscope, contactless velocity pick-up
Device, laser ranging system calculate storage device and are directly anchored on measuring device frame, the road grade angle, non-that gyroscope measures
The speed of operation and the surveyed distance value of laser ranging system that contact velocity sensor measures are input to calculating storage device, by this
Storage device is calculated to calculate and export the road roughness of tested road.
Road level direction when calculating (one) automobile of road surface unevenness advances is +X direction, perpendicular to road surface to
Upper is +Y direction, and the speed that contactless velocity sensor measures is vm/s, and sampling time interval is Δ ts, is measured by gyroscope
The angle of gradient be α, the angle formed counterclockwise between the directions gyroscope+x and road level +X direction when upward slope is positive value, descending
When the directions gyroscope+x and road level +X direction between the angle that is formed clockwise be negative value.When the vehicle is running reversely, on
It states and is still set up about the definition of angle.I is measuring point serial number, and i=0 indicates that the initial value of i when cumulative summation, n are cumulative summations
When i stop value, then since road surface longitudinal length caused by road grade and vertical height are respectively：
(2) laser ranging system terrain clearance is h when initial0, the distance to the ground that follow-up each moment point measures is hi, then should
Section road
The road surface unevenness of each measuring point in road is accumulated as
Road surface injustice is found out according to gained speed, road grade angle and each measuring point road microstructure height difference is measured
Degree.
The road surface non-planeness measurement device of the present invention, compared with prior art, generated advantageous effect is：Pass through
The mechanisms such as longitudinal traction bar, lateral traction bar and guide pad are set up, the pitching of body of a motor car is can effectively eliminate, inclination, hangs down
The transport motion generated to vibration to gyroscope, contactless velocity sensor and laser ranging system, makes road irregularity
Measuring device athletic posture is unaffected and independent measurement can be unfolded, and ensure that the gyroscope measurement road angle of gradient and laser ranging
The accuracy of device measurement distance, to keep road surface unevenness result and actual value more identical.
Description of the drawings
Fig. 1 is the road surface non-planeness measurement device front view for indicating one embodiment of the present invention.
Fig. 2 is the vertical view for indicating the above embodiment of the present invention.
Fig. 3 is the side view for indicating the above embodiment of the present invention.
Fig. 4 is the enlarged structure schematic diagram at A in Fig. 3.
Fig. 5 is the coordinate schematic diagram indicated when the present invention carries out road surface non-planeness measurement and calculates.
Drawing reference numeral explanation
1, draw hook, 2, fixed block on draw hook, 3, fixed block under draw hook, 4, stub, 5, longitudinal traction bar, 6, be oriented to
Block, 7, be oriented to connecting plate, 8, be oriented to connecting cover plate, 9, lateral traction bar, 10, front axle, 11, rear axle, 12, bearing, 13, bearing cap
Plate, 14, the bearing seat of honour, 15, bearing base, 16, steel wheel, 17, steel wheel baffle, 18, measuring device frame, 19, gyroscope, 20, non-
Contact velocity sensor, 21, laser ranging system, 22, calculate storage device, 23, be oriented to connecting plate rectangular preiection.
Specific implementation mode
In the following, being described in detail below in conjunction with 1~4 pair of road surface non-planeness measurement device of the invention of attached drawing.
As shown in figures 1-4, road surface non-planeness measurement device by guiding mechanism, measure running gear and gyroscope 19,
Contactless velocity sensor 20, laser ranging system 21 and calculating storage device 22 form, and wherein guiding mechanism includes traction
Fixed block 3 under fixed block 2, draw hook on hook 1, draw hook, longitudinal traction bar 5, guide pad 6, is oriented to connecting plate 7, leads stub 4
To connecting cover plate 8, lateral traction bar 9, it includes measuring device frame 18, front axle 10, rear axle 11 and by identical to measure running gear
Bearing 12, bearing cover 13, the bearing seat of honour 14, bearing base 15, steel wheel 16, steel wheel cover board 17 form front, rear, left and right
Four steel wheel groups.
As shown in figures 1-4, draw hook 1 is linked together by fixed block on draw hook 2 and fixed block under draw hook 3, main
Pin 4 is connected under draw hook on fixed block 3, and 5 one end of longitudinal traction bar is connect with stub 4, and other end is connect with guide pad 6,
5 front end of longitudinal traction bar can be rotated around stub 4, and its rear end can rotate in the endoporus of guide pad 6, and guide pad 6, which is mounted on, to be oriented to
Between connecting plate 7 and guiding connecting cover plate 8, and guide pad 6 can move vertically along the rectangular preiection 23 for being oriented to connecting plate 7, horizontal
It is connected to 9 one end of draw bar with connecting plate 7 is oriented to, the other end is connected with measuring device frame 18；Front axle 10 passes through the interior of bearing 12
Hole, bearing 12 are fixed by bearing cover 13, and 10 end of front axle connects steel wheel 16, and steel wheel cover board 17 is used in combination to fix, and bearing 12 is installed
Between the bearing seat of honour 14 and bearing base 15, the bearing seat of honour 14 is connected with measuring device frame 18, the mounting means of rear axle 11 with
Front axle 10 is similar, is all connect with measuring device frame 18 by the bearing seat of honour 14, and gyroscope 19, laser ranging system 21 are calculated and deposited
Storage device 22, contactless velocity sensor 20 are all mounted on measuring device frame 18, uneven to constitute entire road surface
Spend measuring device.
Road surface non-planeness measurement device is articulated to by draw hook 1 on automobile, and the device is also therewith when running car
Movement, road grade angle α is measured by gyroscope 19, speed v is measured by contactless velocity sensor 20, by laser ranging system
21 measure the distance value h that each moment point measuresi, the above results are input to and are calculated in storage device 22, you can are calculated
Cross the unevenness of road surface.When pitching, roll motion occur for body of a motor car, since 5 front end of longitudinal traction bar can be around master
Pin 4 rotates, and its rear end can rotate in the endoporus of guide pad 6, and eliminating road surface non-planeness measurement device can be with Automobile
The pitching of body generation rolls transport motion；When vertical vibration occurs for body of a motor car, guide pad 6 is along the rectangle for being oriented to connecting plate 7
Protrusion 23 moves vertically, and eliminates the vertical vibration that road surface non-planeness measurement device can be generated with body of a motor car.More than
Structure has ensured that the movement of road surface non-planeness measurement device is not interfered by body of a motor car posture, and makes the row of the device
Speed is sailed to be consistent with automobile speed.
The deformation of embodiment
In addition, the invention is not limited in the above embodiment, the deformation within the scope of the object of the invention can be realized, improve
It is contained in the present invention.
Claims (2)
1. a kind of road surface non-planeness measurement device, including guiding mechanism, measurement running gear, gyroscope, laser ranging dress
Set and calculate storage device, it is characterised in that：The guiding mechanism is articulated on automobile hook, measures running gear and Guiding machine
Structure is connected, and gyroscope, contactless velocity sensor, laser ranging system and calculating storage device are mounted on and measure running gear
On, the angle of gradient of gyroscope measurement road, contactless velocity sensor measures speed of operation, and laser ranging system measures laser
For launch point to the distance of road surface, above-mentioned parameter, which inputs, calculates storage device, goes out tested road table by theoretical formula method
The unevenness in face；
The guiding mechanism includes draw hook, fixed block under fixed block, draw hook on draw hook, stub, longitudinal traction bar, is oriented to
Block, be oriented to connecting plate, be oriented to connecting cover plate, lateral traction bar, longitudinal traction bar front end can under draw hook fixed block stub
Rotation, the rear end of longitudinal traction bar can rotate in the endoporus of guide pad, and guide pad can be done along the rectangular preiection for being oriented to connecting plate
Vertical movement；
The measurement running gear includes measuring device frame, front axle, rear axle and by identical bearing, bearing cover, bearing
The steel wheel group of front, rear, left and right four of seat, bearing base, steel wheel, steel wheel cover board composition, measuring device frame front end shaft hole sleeve is in cross
To on draw bar, can be rotated around lateral traction bar, four wheels of the running gear are steel wheel, and coaxial upper two steel wheels
Outboard wheel is away from less than tyre width；
The draw hook is linked together by fixed block on draw hook and fixed block under draw hook, and stub is connected under draw hook
On fixed block, longitudinal traction bar one end is connect with stub, and other end is connect with guide pad, and guide pad, which is mounted on, is oriented to connecting plate
Between being oriented to connecting cover plate, lateral traction bar one end is connected with connecting plate is oriented to, and the other end is connected with measuring device frame；
The front axle passes through the endoporus of bearing, bearing to be fixed by bearing cover, and preceding shaft end connects steel wheel, is used in combination steel wheel cover board solid
Fixed, between bearing seat mounted on bearings and bearing base, the bearing seat of honour is connected with measuring device frame, and rear axle passes through the bearing seat of honour
It is connect with measuring device frame.
2. road surface non-planeness measurement device according to claim 1, which is characterized in that the gyroscope, non-contact
Formula velocity sensor, laser ranging system, calculating storage device are directly anchored on measuring device frame, the road that gyroscope measures
The speed of operation and the surveyed distance value of laser ranging system that the angle of gradient, contactless velocity sensor measure are input to calculating storage
Device is calculated by the calculating storage device and exports the road roughness of tested road；
Calculating storage device calculating process is：The speed that the contactless velocity sensor measures is v m/s, between the sampling time
Δ t s are divided into, are α by the angle of gradient that gyroscope is measured, i is measuring point serial number, and i=0 indicates that the initial value of i, n are when cumulative summation
The stop value of i when cumulative summation, road surface longitudinal length and vertical height are respectively caused by road grade：
The laser ranging system measures terrain clearance, and laser ranging system terrain clearance is h when initial0, follow-up each moment point survey
The distance to the ground obtained is hi, then the road surface unevenness of each measuring point of this section of road be accumulated as
Road surface unevenness is found out according to gained speed, road grade angle and each measuring point road microstructure height difference is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297087.8A CN104949649B (en) | 2015-05-26 | 2015-05-26 | Road surface non-planeness measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297087.8A CN104949649B (en) | 2015-05-26 | 2015-05-26 | Road surface non-planeness measurement device |
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| Publication Number | Publication Date |
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| CN104949649A CN104949649A (en) | 2015-09-30 |
| CN104949649B true CN104949649B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510297087.8A Expired - Fee Related CN104949649B (en) | 2015-05-26 | 2015-05-26 | Road surface non-planeness measurement device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211150A (en) * | 2018-08-07 | 2019-01-15 | 中国地质大学（武汉） | A kind of roughness measurement method and apparatus |
| CN109506619A (en) * | 2018-10-16 | 2019-03-22 | 江苏大学 | A kind of road surface elevation detection system and its detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053954A (en) * | 1990-02-06 | 1991-08-21 | 吉林工业大学 | Measurer for soft road surface unevenness |
| CN1384245A (en) * | 2001-04-29 | 2002-12-11 | 陆键 | Automatic surface section instrument for detecting road surface flatness and its detection method |
| CN101246000A (en) * | 2008-03-21 | 2008-08-20 | 哈尔滨工业大学 | Pavement planeness automatic detection device and detecting method |
| CN204854706U (en) * | 2015-05-26 | 2015-12-09 | 山东交通学院 | Uneven measuring device of road surface |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3488200B2 (en) * | 2000-12-20 | 2004-01-19 | 株式会社サントップテクノ | Traveling road surface shape measuring device |
| FR3001799B1 (en) * | 2013-02-07 | 2017-01-13 | Commissariat Energie Atomique | DEVICE FOR MEASURING THE SURFACE CONDITION OF A SURFACE |
-
2015
- 2015-05-26 CN CN201510297087.8A patent/CN104949649B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053954A (en) * | 1990-02-06 | 1991-08-21 | 吉林工业大学 | Measurer for soft road surface unevenness |
| CN1384245A (en) * | 2001-04-29 | 2002-12-11 | 陆键 | Automatic surface section instrument for detecting road surface flatness and its detection method |
| CN101246000A (en) * | 2008-03-21 | 2008-08-20 | 哈尔滨工业大学 | Pavement planeness automatic detection device and detecting method |
| CN204854706U (en) * | 2015-05-26 | 2015-12-09 | 山东交通学院 | Uneven measuring device of road surface |
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| CN104949649A (en) | 2015-09-30 |
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