CN202055155U - Laser inertia high-speed pavement smoothness detection instrument - Google Patents
Laser inertia high-speed pavement smoothness detection instrument Download PDFInfo
- Publication number
- CN202055155U CN202055155U CN2011200545518U CN201120054551U CN202055155U CN 202055155 U CN202055155 U CN 202055155U CN 2011200545518 U CN2011200545518 U CN 2011200545518U CN 201120054551 U CN201120054551 U CN 201120054551U CN 202055155 U CN202055155 U CN 202055155U
- Authority
- CN
- China
- Prior art keywords
- signal output
- interface
- sensor
- pulse counter
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model relates to a laser inertia high-speed pavement smoothness detection instrument, which consists of a laser sensor, a vertical acceleration sensor, an electronic converter, an analog-to-digital (A/D) interface, an electronic digital encoder, a pulse counter, a vehicle-mounted computer and a box body, wherein the box body respectively loads the sensor and the encoder, the signal output end of the laser sensor and the signal output end of the acceleration sensor are connected with the signal input end of the electronic converter, the signal output end of the electronic converter is connected with the signal input end of the A/D interface, the signal output end of the A/D interface is connected with the vehicle-mounted computer, the signal output end of the electronic digital encoder is connected with the signal input end of the pulse counter, and the signal output end of the pulse counter is connected with the vehicle-mounted computer. The laser inertia high-speed pavement smoothness detection instrument has the advantages that the long-distance fast automatic detection and the in-site computer data analysis and evaluation can be carried out on the pavement under the condition of normal vehicle speed, and the high-speed automatic detection and evaluation on the pavement smoothness and the construction depth is realized.
Description
Technical field
The utility model relates to a kind of instrument that road evenness is measured, especially a kind of laser inertia that adopts realizes that with reference to the vertical section of road surface section road pavement grows the device apart from the fast automatic detecting planeness, relates to surface evenness detection technique, sensor technology, Computer Interface Technology and computer software application technology.
Background technology
Surface evenness is an important indicator during pavement evaluation and pavement construction are checked and accepted.Surface evenness has directly reflected the comfort level of vehicle ' and the safety and the useful life on road surface.The Instrument measuring of surface evenness mainly contains two macrotaxonomies: the first kind is measured (direct-type detection type) for the vertical section of road surface section, promptly measures vertical curve, then the vertical curve of measuring is carried out mathematical analysis and draws roughness index.Second class is the reaction assay (response type detection type) of vehicle road pavement, promptly measures the mechanical response that vehicle road pavement longitudinal section changes, and then the mechanical response of measuring is carried out mathematical analysis and draws roughness index.The conversion of surface evenness index mainly is to demarcate by the result that reference instrument is recorded to obtain.Usually, first kind detection method detection speed is slower, generally can not be used for the long distance detecting under the high-speed condition, but accuracy of detection is higher, and the second class detection method detection speed is very fast, but accuracy of detection is relatively low.The second class detecting instrument often will carry out index by means of first kind detecting instrument to be demarcated, and therefore can't be used for the examination to the road evenness after the new construction.
Summary of the invention
At existing shortcoming in the prior art, the utility model adopts laser sensor and the synthetic inertia of normal acceleration sensor groups with reference to vertical section of road surface section detection system, detect the vertical section of road surface section curve (direct-type detection type) that comprises short wavelength and long wavelength in real time, obtain various pavement evaluation indexs simultaneously, comprising: international roughness index (IRI), planeness standard deviation (σ), observation marking value (RN), ride quality index (RQI), pavement structural depth (TD).The utility model can road pavement be grown apart from fast automatic detecting and field computer data analysis and evaluation under the condition of the normal speed of a motor vehicle, can accurately record surface evenness and construction depth.
The technical solution of the utility model realizes in the following ways:
The utility model is a kind of laser inertia high speed smoothness measuring equipment, and this instrument is made up of laser sensor, normal acceleration sensor, electronic commutator, A/D interface, electronic digital coding device, pulse counter, vehicular computer (Industrial Control Computer) and the casing that loads sensor and encoder respectively.Be installed in the casing at the crossbeam two ends before the inspection vehicle laser sensor, normal acceleration sensor, electronic commutator, A/D interface are installed.The signal output part of laser sensor and acceleration transducer and the signal input part of electronic commutator join, and the signal input part of the signal output part of electronic commutator and A/D interface joins, and the signal output part of A/D interface and vehicular computer join.Be installed in electronic digital coding device and pulse counter are installed in the casing on the inspection vehicle rear wheel.The signal output part of electronic digital coding device and the signal input part of pulse counter join, and the signal output part of pulse counter will join with the vehicular computer.
Laser sensor of the present utility model mainly detects the vertical section of road surface section; Acceleration transducer mainly obtains the normal acceleration of inspection vehicle, is used to compensate the vertical spring of inspection vehicle, and the minimizing system detects error; Encoder then is to be used for obtaining distance and the spot speed that inspection vehicle travels; Electronic commutator then is to be used for converting the signal of telecommunication that each sensor obtains to the A/D interface can receive the signal of telecommunication that is subjected to, and provides essential power supply for each detecting sensor; The A/D interface is to convert analog electrical signal to data signal that vehicle-mounted Industry Control function receives.
This project product has following innovative point:
1. the electronic digital coding device is installed on the wheel of inspection vehicle, has been realized the automatic detection of speed and distance, strengthened the degree of system automation, improved efficient and speed that pavement quality detects.
2. adopt high speed, high-resolution analog-digital converter and pulse counter to form computer interface, all acquired signal are imported in the vehicular computer (Industrial Control Computer) by interface, dedicated processes software by independent development, realized the functions such as automation collection, processing, analysis, preservation of road surface data, replaced the manual record data and analyzed the conventional method of data.
3. adopt laser sensor and acceleration transducer detection technique, road pavement longitudinal section section and cross section, road surface section have been realized detection of dynamic, make the data of detection more accurate.
4. the utility model is compared with prior art, has characteristics multiple functional, easy to use, time saving and energy saving, that the detection range detectability is big, compliance is good.Can be widely used in examination, evaluation, the analysis of pavement construction quality such as long wavelength's surface evenness that airfield runway, bridge access bridge road surface, express highway pavement etc. have the slope, construction depth, and the evaluation of crew comfort and vehicle safety.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is a sensor casing of the present utility model place car front beam schematic diagram.
Fig. 3 is a Sensor box body structure schematic diagram of the present utility model.
Fig. 4 is a Lineside encoding unit body structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model is made up of the casing 9 and the signal output cable 10 of laser sensor 1, normal acceleration sensor 2, electronic commutator 3, A/D interface 4, electronic digital coding device 5, pulse counter 6, vehicular computer (Industrial Control Computer) 7, the casing 8 that loads sensor, loading encoder.Laser sensor 1, normal acceleration sensor 2, electronic commutator 3, A/D interface 4 are fixed in the casing 8 at the crossbeam two ends before the inspection vehicle.Laser sensor 1 joins with the signal output part of acceleration transducer 2 and the signal input part of electronic commutator 3, and the signal input part of the signal output part of electronic commutator 3 and A/D interface 4 joins, and the signal output part of A/D interface 4 and vehicular computer 7 join.Be installed in electronic digital coding device 5 and pulse counter 6 are installed in the casing 9 on the inspection vehicle rear wheel.The signal input part of the signal output part of electronic digital coding device 5 and pulse counter 6 joins, and the signal output part of pulse counter 6 will join with vehicular computer 7.
When monitoring car travels with the normal speed of a motor vehicle, laser sensor 1, normal acceleration sensor 2 acquired signal, convert the signal of telecommunication that collects to data signal by electronic commutator 3, A/D interface 4, by signal output cable 10 data signal is imported vehicular computer (Industrial Control Computer) 7 again, simultaneously when wheel rotates, electronic digital coding device 5 can be exported the electronic pulse signal of a string, through pulse counter 6, by signal output cable 10 data signal is imported vehicular computer (Industrial Control Computer) 7 again.All signals that collect carry out mathematical computations and analysis by the dedicated processes software of independent development, obtain the planeness curve of the whole road section surface in this section way, with respect to the vertical distance of starting point, thereby obtain comprising the surface evenness index on little slope.The main roughness index analytical model that the utility model adopts comprises by must depending on of being provided with among the software separates the IRI value that 1/4th vehicle simulation models that the second order dynamical equation just can draw calculate, vertical section of road surface standard mean square deviation, surpass given decision discrepancy in elevation cumulative number, and the positive and negative unidirectional accumulation discrepancy in elevation etc.Existing roughness measurement instrument is directly to calculate the IRI value, and main cause is to measure the vertical section of road surface curve values that comprises long wavelength and short wavelength.The IRI value then must be calculated by the vertical section of road surface curve values that comprises long wavelength's (30 meters with interior wavelength) and short wavelength.The utility model can obtain various pavement evaluation indexs in real time, comprising: international roughness index (IRI), planeness standard deviation (σ), observation marking value (RN), ride quality index (RQI), pavement structural depth (TD).The utility model has been realized automation collection, processing, analysis, the preservation of road surface data, can under the condition of the normal speed of a motor vehicle, road pavement grow apart from fast automatic detecting and field computer data analysis and evaluation, its scope of application is extensive, is mainly used in: urban road and each standard highway or the inspection of quality of airfield runway pavement construction; For response type planeness detector and other class planeness detector provide the demarcation reference; Pavement management system (CPMS) or airfield runway road surface are periodically detected and are estimated.
Claims (1)
1. laser inertia expressway surface evenness detector, this instrument is by laser sensor, the normal acceleration sensor, electronic commutator, the A/D interface, the electronic digital coding device, pulse counter, the vehicular computer is an Industrial Control Computer, and the casing that loads sensor and encoder is respectively formed, it is characterized in that: be installed in the casing at the crossbeam two ends before the inspection vehicle laser sensor is installed, the normal acceleration sensor, electronic commutator, the A/D interface, the signal output part of laser sensor and acceleration transducer and the signal input part of electronic commutator join, the signal input part of the signal output part of electronic commutator and A/D interface joins, and the signal output part of A/D interface and vehicular computer join; Be installed in electronic digital coding device and pulse counter are installed in the casing on the inspection vehicle rear wheel, the signal output part of electronic digital coding device and the signal input part of pulse counter join, and the signal output part of pulse counter will join with the vehicular computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200545518U CN202055155U (en) | 2011-03-03 | 2011-03-03 | Laser inertia high-speed pavement smoothness detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200545518U CN202055155U (en) | 2011-03-03 | 2011-03-03 | Laser inertia high-speed pavement smoothness detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055155U true CN202055155U (en) | 2011-11-30 |
Family
ID=45015134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200545518U Expired - Fee Related CN202055155U (en) | 2011-03-03 | 2011-03-03 | Laser inertia high-speed pavement smoothness detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055155U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669183A (en) * | 2013-12-02 | 2014-03-26 | 黑龙江科技大学 | Time sequence model of road surface evenness |
| CN103669182A (en) * | 2013-11-15 | 2014-03-26 | 上海嘉珏实业有限公司 | Pavement crack recognition device based on camera and line laser and recognition method of pavement crack recognition device |
| CN105887636A (en) * | 2016-04-15 | 2016-08-24 | 招商局重庆交通科研设计院有限公司 | Pavement structural depth manufacturing method and construction vehicle |
| CN110306414A (en) * | 2019-07-13 | 2019-10-08 | 嘉兴普勒斯交通技术有限公司 | A kind of pavement structural depth detection method |
| CN111947555A (en) * | 2020-08-13 | 2020-11-17 | 扬州工业职业技术学院 | Furniture board surface flatness measures frock |
-
2011
- 2011-03-03 CN CN2011200545518U patent/CN202055155U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669182A (en) * | 2013-11-15 | 2014-03-26 | 上海嘉珏实业有限公司 | Pavement crack recognition device based on camera and line laser and recognition method of pavement crack recognition device |
| CN103669183A (en) * | 2013-12-02 | 2014-03-26 | 黑龙江科技大学 | Time sequence model of road surface evenness |
| CN103669183B (en) * | 2013-12-02 | 2016-05-25 | 黑龙江科技大学 | The time series models of surface evenness |
| CN105887636A (en) * | 2016-04-15 | 2016-08-24 | 招商局重庆交通科研设计院有限公司 | Pavement structural depth manufacturing method and construction vehicle |
| CN105887636B (en) * | 2016-04-15 | 2018-08-14 | 招商局重庆交通科研设计院有限公司 | Pavement structural depth intelligence makes method and work car |
| CN110306414A (en) * | 2019-07-13 | 2019-10-08 | 嘉兴普勒斯交通技术有限公司 | A kind of pavement structural depth detection method |
| CN111947555A (en) * | 2020-08-13 | 2020-11-17 | 扬州工业职业技术学院 | Furniture board surface flatness measures frock |
| CN111947555B (en) * | 2020-08-13 | 2021-02-26 | 扬州工业职业技术学院 | Furniture board surface flatness measures frock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102901550B (en) | Method for implementing vehicle-mounted dynamic weighing | |
| CN202055155U (en) | Laser inertia high-speed pavement smoothness detection instrument | |
| CN101793545B (en) | Automatic metering system and method for biofuel | |
| CN108515984B (en) | Wheel damage detection method and device | |
| CN107244335B (en) | Wave abrasion detection device and method | |
| CN201339159Y (en) | Laser pavement evenness testing apparatus | |
| CN102607680A (en) | Vibration-based rapid detection method for vehicle load identification for bridges | |
| CN2938028Y (en) | Device for measuring road surface planeness | |
| CN105923014B (en) | A kind of track transition Amplitude Estimation method based on evidential reasoning rule | |
| CN104215421A (en) | Quick bridge impact coefficient determination method | |
| CN102252627B (en) | Gauge detection device and detection method for high-speed railway track | |
| CN104005324B (en) | A kind of detection system of pavement structure information | |
| CN105651368A (en) | Quick and nondestructive testing method for road axle load spectrum | |
| CN100419810C (en) | Device for collecting information of road section | |
| CN101587058A (en) | High-precision pendulum friction coefficient measuring instrument | |
| CN113415308B (en) | Rail corrugation detection method and device | |
| CN101302738A (en) | Rut testing instrument and testing method thereof | |
| CN1177104C (en) | Automatic surface section instrument for detecting road surface flatness and its detection method | |
| CN201945294U (en) | Automatic detecting system for full face of line | |
| CN1020774C (en) | High-speed highway level | |
| CN2861252Y (en) | Jounce accumulation type tester for road planeness | |
| CN103344562A (en) | Multi-point optical fiber corrosion monitoring device | |
| CN102866031A (en) | Method for testing response relation of load position and bridge | |
| CN110230247A (en) | A kind of road structure venereal disease evil detection device and method based on laser doppler technique | |
| CN105486757A (en) | Portable flaw detector defect positioning method |
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: 20111130 Termination date: 20120303 |