CN201339159Y - Laser pavement evenness testing apparatus - Google Patents
Laser pavement evenness testing apparatus Download PDFInfo
- Publication number
- CN201339159Y CN201339159Y CNU2008202285481U CN200820228548U CN201339159Y CN 201339159 Y CN201339159 Y CN 201339159Y CN U2008202285481 U CNU2008202285481 U CN U2008202285481U CN 200820228548 U CN200820228548 U CN 200820228548U CN 201339159 Y CN201339159 Y CN 201339159Y
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- laser
- rigidity
- testing
- laser displacement
- pavement evenness
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Abstract
The utility model relates to a laser pavement evenness testing apparatus for testing and evaluating pavement evenness index, which is mounted on a testing vehicle or a trailing testing device. The laser pavement evenness testing apparatus is provided with a rigidity testing beam, a system power supply and a data collecting case are placed in the rigidity testing beam, and five laser displacement sensors capable of downwardly emitting collimated detecting laser beams are arranged on the rigidity testing beam side by side. When the testing apparatus moves forwardly along with the vehicle, the five laser displacement sensors simultaneously test the distance between the rigidity testing beam and the ground longitudinally, after collected data is treated by a computer, the laser pavement evenness testing apparatus can fast and accurately test pavement evenness index. The utility model has the advantages of low price, convenient operation, fast and accurate test, high work efficiency and the like.
Description
Technical field
The utility model content belongs to road quality checkout gear technical field, relates to a kind of surface evenness detector that is used to detect the evaluation path roughness index.
Background technology
Surface evenness is a very important index of checking and accepting highway construction, occupies crucial status in road construction quality evaluation and use maintenance management.How to realize quick, objective, accurate, the high efficiency of road evenness are detected, be the problem that highway construction, supervision and scientific research department very pay close attention to for a long time always.At present this area is used for plant and instrument that road evenness detects and mainly contains that level gauge, three meters ruler instrument, eight are taken turns smoothness measuring equipment, accumulation instrument, laser evenness instrument etc. jolt, the detection method difference of each plant and instrument is bigger, corresponding some problems that also have separately in actual the use.
Level gauge is mainly used in the profile of road height measurement, thereby determine the planeness on road surface, but because it is manual operations, detection efficiency is low, usually only be used as the demarcation benchmark of the planeness detector of all other types, promptly the accuracy of detection of other planeness detector is all demarcated by level gauge.
Three meters ruler instrument are by detecting the maximal clearance between three meters rulers and the road surface and estimating the device of the planeness on road surface with this, though it is simple to operate, easy to use, but have some human factors, detection efficiency is low, and detects the personal safety problem that also has on the road surface that is open to traffic; In addition, the method that road evenness detects is to provide roughness index IRI, in order to export IRI, must detect the relative longitudinal section shape on road surface, and three meters ruler instrument also can't be accomplished this point, reason to sum up, and this instrument only is used for the control aspect of road construction quality at present.
Before the laser evenness instrument comes out, eight take turns the main detector that smoothness measuring equipment is a roughness index in road construction and the maintenance, this instrument detects by the mode that provides a mean square deviation index, but because examined speed restriction own, furthermore it can not detect the relative longitudinal section shape on road surface, because of it also only is mainly used in the detection of road evenness construction quality at present.
The operating principle of accumulating instrument of jolting is the monodisplacement accumulated value that detects between car body and the vehicle rear axle, after through strict the demarcation, is usually used in the planeness detection of road maintenance.Because state must be the same with the timing signal duty when work for this detector, promptly require the vehicle condition (road speed, car load etc.) when detecting preferably the same with the vehicle condition of timing signal, and in actual use particularly in arterial highway detects, usually need temporary parking or detection speed non-constant, this just directly returns the situation that causes testing result not conform to the actual conditions, and therefore this detector seldom uses at present.
The laser evenness instrument is present this area surface evenness detecting instrument of normal use, and its outstanding feature is that detection speed is fast, the precision height.The detection principle of this instrument is to detect on the vehicle a certain position to the distance on road surface by laser displacement sensor, and detects the vibration of vehicle by accelerometer, and then obtains the difference of the two, the i.e. planeness of road surface.Because this detection method adopts the vibration of accelerometer measures vehicle to jolt, and there is certain frequency response range in accelerometer itself, so the accuracy of detection of present common laser evenness instrument generally must be greater than about 30Km/h, be that low speed can't use, practical application is a big defective for road for this.Because in Road Detection, owing to reasons such as maintenance constructions, vehicle usually needs Reduced Speed Now, and when particularly detecting on arterial road, detection speed is very slow sometimes, can't satisfy the instrument service condition.In addition, vehicle runs into traffic lights parking situation and frequently occurs in urban road travels the way, and obviously, this detector also can't fully satisfy the requirement that urban road detects.
The utility model content
The purpose of this utility model is to overcome the deficiency that aforementioned each common smoothness measuring equipment equipment exists, provide a kind of simple and reasonable, easy to use, accuracy of detection is high and the unrestricted laser pavement planeness of detection speed detector,
Be used to realize that the technical solution of foregoing invention purpose is such: the laser pavement planeness detector that is provided has a rigidity that is built-in with system power supply and data acquisition box and detects beam, detects to install side by side on the beam in rigidity to be provided with five laser displacement sensors that electrically connect and can send the collimation detection laser beam with system power supply and data acquisition box downwards.In the practical application, rigidity detects beam and longitudinally can be installed on the checkout gear of pulling or be installed on the detection vehicle in the road surface, when detector with car to overtake the time, five laser displacement sensors longitudinally detect rigidity simultaneously and detect the distance of beam to the road surface, the data that collect machine are as calculated carried out after data handle, promptly can detect the roughness index on road surface fast and accurately, as international roughness index IRI etc.
Description of drawings
Fig. 1 is the operating principle structural representation of a specific embodiment of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the operating principle structural representation of another embodiment of the utility model.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the operating principle structural representation of the 3rd embodiment of the utility model.
Fig. 6 is the vertical view of Fig. 5.
The specific embodiment
The structure of a specific embodiment of the utility model and operating principle are as depicted in figs. 1 and 2, it comprises that a rigidity that is built-in with system power supply 7 and data acquisition box 8 detects beam 6, each installation of two ends that detects beam 6 in rigidity is provided with a laser displacement sensor 1,5, detect the equidistant solid matter arranged side by side in beam 6 middle parts in rigidity and be provided with three laser displacement sensors 2～4, five laser displacement sensors 1～5 all electrically connect with system power supply 7 and data acquisition box 8, and the collimation detection laser beam that is used for sample record is sent on road surface 9 downwards.Proportionate relationship among the figure between the distance of the installation site of each laser displacement sensor satisfies following formula:
L
12＝L
23；L
42＝L
25；L
12＝N×L
42；N≥6
N is a positive integer in the formula, L
12Be the spacing of 1 to second laser displacement sensor 2 of first laser displacement sensor, all the other are equal and the like.H among Fig. 1
n(n=1,2,3,4,5) is the distance of n laser displacement sensor to tested road surface 9.
According to the detection method that Fig. 1 provides, the set-up mode of laser displacement sensor described in the utility model also can adopt the layout shown in Fig. 3～4 or Fig. 5～6.Wherein: the topology layout of Fig. 3～4 is to be provided with a laser displacement sensor 1,3 at the left end of rigidity detection beam 6 and each installation of middle part, and the equidistant solid matter arranged side by side of right-hand member that detects beam 6 in rigidity is provided with three laser displacement sensors 2,4,5; The topology layout of Fig. 5～6 is to be provided with a laser displacement sensor 5,3 at the right-hand member of rigidity detection beam 6 and each installation of middle part, and the equidistant solid matter arranged side by side of left end that detects beam 6 in rigidity is provided with three laser displacement sensors 1,2,4.
Claims (3)
1, a kind of laser pavement planeness detector, it is characterized in that having a rigidity that is built-in with system power supply (7) and data acquisition box (8) and detect beam (6), on rigidity detection beam (6), install side by side and be provided with five laser displacement sensors (1～5) that electrically connect and can send the collimation detection laser beam with system power supply (7) and data acquisition box (8) downwards.
2, laser pavement planeness detector according to claim 1, it is characterized in that each installation of two ends that detects beam (6) in rigidity is provided with a laser displacement sensor (1,5), detects the equidistant solid matter arranged side by side in beam (6) middle part in rigidity and is provided with three laser displacement sensors (2～4).
3, laser pavement planeness detector according to claim 1, it is characterized in that an end and each installation of middle part of detecting beam (6) in rigidity are provided with a laser displacement sensor, the equidistant solid matter arranged side by side of the other end that detects beam (6) in rigidity is provided with three laser displacement sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202285481U CN201339159Y (en) | 2008-12-31 | 2008-12-31 | Laser pavement evenness testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202285481U CN201339159Y (en) | 2008-12-31 | 2008-12-31 | Laser pavement evenness testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339159Y true CN201339159Y (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202285481U Expired - Fee Related CN201339159Y (en) | 2008-12-31 | 2008-12-31 | Laser pavement evenness testing apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201339159Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535317A (en) * | 2012-01-06 | 2012-07-04 | 北京市路兴公路新技术有限公司 | Rapid testing device for pavement deflection |
| CN103669185A (en) * | 2013-12-25 | 2014-03-26 | 长安大学 | Testing device for structure wave spectrum of road surface |
| CN104195930A (en) * | 2014-08-26 | 2014-12-10 | 长安大学 | System and method for detecting pavement evenness based on multiple sensors |
| CN106197329A (en) * | 2016-06-28 | 2016-12-07 | 黑龙江省木材科学研究所 | A kind of motion ground flatness detecting device, detecting system and detection method |
| CN103776589B (en) * | 2014-01-26 | 2017-02-15 | 浙江吉利汽车研究院有限公司 | Method for detecting dynamic balance of automobile wheel and system for detecting dynamic balance of automobile wheel |
| CN109239099A (en) * | 2018-09-30 | 2019-01-18 | 张家港天筑基业仪器设备有限公司 | Road surface breakage real-time detecting system and its detection method under multi-machine collaborative environment |
| CN110144798A (en) * | 2019-06-21 | 2019-08-20 | 张唤裕 | A kind of induction concave-convex road surface roll detection instrument |
| CN111877108A (en) * | 2020-07-15 | 2020-11-03 | 中公高科养护科技股份有限公司 | Road flatness measuring method based on line laser |
| CN115058947A (en) * | 2022-05-12 | 2022-09-16 | 安徽中青检验检测有限公司 | Roadbed pavement flatness detection device and method |
-
2008
- 2008-12-31 CN CNU2008202285481U patent/CN201339159Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535317A (en) * | 2012-01-06 | 2012-07-04 | 北京市路兴公路新技术有限公司 | Rapid testing device for pavement deflection |
| CN103669185A (en) * | 2013-12-25 | 2014-03-26 | 长安大学 | Testing device for structure wave spectrum of road surface |
| CN103669185B (en) * | 2013-12-25 | 2018-03-06 | 长安大学 | A kind of structure wave spectrum of road surface test device |
| CN103776589B (en) * | 2014-01-26 | 2017-02-15 | 浙江吉利汽车研究院有限公司 | Method for detecting dynamic balance of automobile wheel and system for detecting dynamic balance of automobile wheel |
| CN104195930A (en) * | 2014-08-26 | 2014-12-10 | 长安大学 | System and method for detecting pavement evenness based on multiple sensors |
| CN106197329A (en) * | 2016-06-28 | 2016-12-07 | 黑龙江省木材科学研究所 | A kind of motion ground flatness detecting device, detecting system and detection method |
| CN109239099A (en) * | 2018-09-30 | 2019-01-18 | 张家港天筑基业仪器设备有限公司 | Road surface breakage real-time detecting system and its detection method under multi-machine collaborative environment |
| CN110144798A (en) * | 2019-06-21 | 2019-08-20 | 张唤裕 | A kind of induction concave-convex road surface roll detection instrument |
| CN110144798B (en) * | 2019-06-21 | 2021-05-18 | 广东省佛山公路集团有限公司 | Response concave-convex road surface roll detector |
| CN111877108A (en) * | 2020-07-15 | 2020-11-03 | 中公高科养护科技股份有限公司 | Road flatness measuring method based on line laser |
| CN115058947A (en) * | 2022-05-12 | 2022-09-16 | 安徽中青检验检测有限公司 | Roadbed pavement flatness detection device and method |
| CN115058947B (en) * | 2022-05-12 | 2024-02-09 | 安徽中青检验检测有限公司 | Roadbed and pavement flatness detection device and method |
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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: 20091104 Termination date: 20111231 |