CN107974907B - Calibrating device and calibrating method for road surface flatness detector - Google Patents
Calibrating device and calibrating method for road surface flatness detector Download PDFInfo
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- CN107974907B CN107974907B CN201711494165.9A CN201711494165A CN107974907B CN 107974907 B CN107974907 B CN 107974907B CN 201711494165 A CN201711494165 A CN 201711494165A CN 107974907 B CN107974907 B CN 107974907B
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- road surface
- laser
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
Abstract
A calibrating device and a calibrating method for a road surface flatness detector belong to the field of road surface flatness detection. In the prior art, a test vehicle is required to run on an outdoor measurement road, the verification cost is high, the verification efficiency is low, and the influence of accidental factors on a verification result is large, so that the verification personal error is large. The vibration devices are respectively arranged below the four corners of the metal platform and are used for simulating the vibration and jolt conditions of the vehicle when the vehicle runs on the road surface, so that the verification result is closer to reality; and the vibration device adopts cams, cylinders, crankshaft connecting rods and the like, so that the cost is low. The vibration condition of vehicle when the road surface is driven is simulated to this patent adoption vibrating device, adopts controller control motor to drive the road surface roughness information of encoder and slider motion simulation input, adopts the measuring device of road surface roughness detector, the measuring device of this device synchronous measurement slider's motion, compares the data that both measured, and then judges the performance of road surface roughness detector.
Description
Technical Field
A calibrating device and a calibrating method for a road surface flatness detector belong to the field of road surface flatness detection.
Background
Road surface flatness is one of the main technical indexes for evaluating road surface quality, and relates to the safety and comfort of driving, the impact force on the road surface and the service life, the uneven road surface can increase the driving resistance, and the vehicle can generate additional vibration effect, and the vibration effect can cause driving jolt, influence the speed and safety of driving, and influence the driving stability and the comfort of passengers. Meanwhile, the vibration effect can also apply impact force to the pavement, so that the damage of pavement and automobile parts and the abrasion of tires are increased, and the oil consumption is increased. Therefore, in order to reduce vibration impact force, improve driving speed and driving comfort, safety, and maintain certain flatness of the road surface.
The flatness directly reflects the comfort of the vehicle driving and the safety and the service life of the road surface. The detection of the road surface flatness can provide important information for a decision maker, so that the decision maker can make optimal decisions for maintenance, repair and the like of the road surface. On the other hand, the detection of the road surface flatness can accurately provide the information of the road surface construction quality, and an objective index of quality assessment is provided for the road surface construction.
The road surface flatness detecting instrument widely used at present comprises a 3m ruler, a continuous flatness instrument, a vehicle-mounted bump accumulation instrument and a vehicle-mounted laser flatness instrument. The continuous laser leveling instrument has the characteristics of continuous measurement, automatic operation, simple structure, low price, capability of displaying and printing the standard deviation of the road surface flatness, simple operation, high detection speed and high detection precision, and the continuous leveling instrument and the vehicle-mounted laser leveling instrument are most widely applied in construction and detection. However, at present, the verification work of the two devices is basically blank, the metering performance of the two devices is not scientifically, reasonably and accurately evaluated, the quality of detection data is seriously influenced, and the development of the detection work is not facilitated. Therefore, for the two devices, it is necessary to research a scientific, perfect and high-precision calibrating device and a calibrating method thereof.
Patent publication No.: CN102011361a, name: a performance metering method of a vehicle-mounted laser planimeter.
A performance metering method of a vehicle-mounted laser planimeter, comprising: step 101, establishing an indoor ground, wherein the flatness of the indoor ground is lower than 2.5mm/m; 102, establishing an indoor static detection module on the indoor ground, installing a vehicle-mounted laser leveling instrument to a test vehicle, carrying out height measurement on the indoor static detection module by using the vehicle-mounted laser leveling instrument, collecting static measurement data, and comparing the static measurement data with a height true value of the indoor static detection module to obtain a static measurement error; step 103, selecting an outdoor measurement road; 104, building an outdoor dynamic flatness model on an outdoor measurement road, testing the running of a vehicle, carrying out flatness measurement on the outdoor dynamic flatness model by using a vehicle-mounted laser flatness meter, collecting dynamic measurement data, and comparing the dynamic measurement data with a flatness true value of the outdoor dynamic flatness model to obtain a dynamic measurement error; and step 105, evaluating the performance grade of the vehicle-mounted laser planeness meter according to the static measurement error and the dynamic measurement error.
The prior art has the following disadvantages:
1) The verification method of the planimeter in the prior art needs to test that the vehicle runs on an outdoor measurement road, has high verification cost and low verification efficiency, and has larger influence on the verification result by accidental factors such as the technology of a driver, the external environment and the like, thus leading to larger verification human errors.
2) The verification method of the planimeter in the prior art needs to respectively establish static and dynamic planeness models indoors and outdoors, is complex to operate and is not convenient to popularize; and the manual operation involved is more, so that the verification accuracy is easily affected.
3) In the prior art, no technical means for combining the pavement evenness detector with the vibration device is used for detecting the pavement evenness detector.
Disclosure of Invention
The vehicle is not required to run on an outdoor measurement road, the verification cost is low, the verification efficiency is high, and the influence of accidental factors such as the technology of a driver, the external environment and the like on the verification result can be avoided.
This patent degree of automation is high, does not need a large amount of manual operation, has improved the precision of examination, and easy operation, facilitate promotion.
The vibration devices are respectively arranged below the four corners of the metal platform and are used for simulating the vibration and jolt conditions of the vehicle when the vehicle runs on the road surface, so that the verification result is closer to reality; and the vibration device adopts cams, cylinders, crankshaft connecting rods and the like, so that the cost is low.
The device adopts the vibration device to simulate the vibration condition of the vehicle when the vehicle runs on the road surface, adopts the controller to control the motor to drive the encoder and the sliding block to simulate the input road surface flatness information, adopts the measuring device of the road surface flatness detector and the measuring device of the device to synchronously measure the movement of the sliding block, compares the measured data of the two devices, and further judges the performance of the road surface flatness detector; this patent combines road surface roughness detector and vibrating device and is used for examining road surface roughness detector (continuous planeness appearance/on-vehicle laser planeness appearance), and this is the initiative in the art.
The calibrating device of the pavement evenness detector comprises a metal platform, a vibrating device, a displacement simulation device, a measuring device, a controller and a display; the road surface flatness detector is arranged on the metal platform, a vibration device is respectively arranged below four corners of the metal platform and is used for simulating vehicle vibration, and the four vibration devices are respectively connected with the controller through wires; the displacement simulation device comprises a motor, a guide rail, a sliding block and an encoder, wherein the motor is connected with the encoder, the motor and the encoder are respectively connected with the controller through wires, the guide rail is perpendicular to the metal platform, the sliding block is arranged on the guide rail in a sliding manner, the controller controls the motor to pull the sliding block to move up and down along the guide rail, and the movement of the sliding block reflects the road surface flatness information; the position of the guide rail is adjusted to enable the sliding block to be positioned under a laser/continuous planeness measuring wheel of the laser planeness measuring instrument, so that the laser/measuring wheel can accurately measure the movement of the sliding block, and the laser/measuring wheel is connected with the controller through a lead; the measuring device is connected with the sliding block, synchronously measures the movement of the sliding block with the laser/measuring wheel, and is connected with the controller through a wire; the display is connected with the controller through a wire, the measured data are displayed on the display after being processed by the controller, and then the data are stored for standby, wherein the synchronous measured data of the measuring device are stored for standby as a measuring true value.
The application method of the calibrating device of the pavement evenness detector is as follows:
(1) Before the road surface flatness detector is calibrated by using the device, a group of information for simulating the road surface flatness is set and input into the controller;
(2) Placing a vibration device and a metal platform on a flat ground, and respectively connecting and fixing the four vibration devices below four corners of the metal platform;
(3) Placing a pavement evenness detector on a metal platform;
(4) The guide rail is vertically arranged on the metal platform, the sliding block is arranged on the guide rail in a sliding way, the position of the guide rail is adjusted to enable the sliding block to be positioned under the laser/continuous planeness measuring wheel of the laser/continuous planeness measuring wheel, the measuring device of the device is connected with the sliding block, the motor is connected with the encoder and the sliding block,
(5) The vibration device, the motor, the encoder, the measuring device, the laser/measuring wheel and the display are respectively connected with the controller through wires;
(6) Starting a controller, wherein the controller controls a vibrating device to accurately simulate vehicle vibration, and simultaneously controls a motor to drive an encoder and a sliding block to simulate and input road surface flatness information;
(7) The calibrating device of the road surface flatness detector finishes working.
Drawings
Fig. 1 is a schematic diagram of the device.
1-controller 2-connecting wire 3-displacement simulator 4-detection platform 5-
The vibration device 6, the motor 7, the guide rail 8, the measuring device 9 and the sliding block.
Detailed Description
Example 1 technical solution implementation procedure
In embodiment 1, the vibration device is specifically a cam, and the measurement device is specifically a grating scale.
The implementation process of the technical scheme is as follows:
(1) Before the road surface flatness detector is calibrated by using the device, a group of information for simulating the road surface flatness is set and input into the controller;
(2) Placing cams and a metal platform on a flat ground, and respectively connecting and fixing the four cams below four corners of the metal platform;
(3) Placing a pavement evenness detector on a metal platform;
(4) The guide rail is vertically arranged on the metal platform, the sliding block is arranged on the guide rail in a sliding way, the position of the guide rail is adjusted to enable the sliding block to be positioned under the laser/continuous planeness measuring wheel of the laser planeness measuring instrument, the grating ruler is connected with the sliding block, the motor is connected with the encoder and the sliding block,
(5) The cam, the motor, the encoder, the grating ruler, the laser/measuring wheel and the display are respectively connected with the controller through wires;
(6) Starting a controller, wherein the controller controls a cam to accurately simulate vehicle vibration, and simultaneously controls a motor to drive an encoder and a sliding block to simulate and input road surface flatness information, a grating ruler and a laser/measuring wheel accurately measure the sliding block movement, the measured data are displayed on a display after being processed by the controller, and are stored for standby, wherein synchronous measurement data of the grating ruler are stored as measurement truth values for standby;
(7) The calibrating device of the road surface flatness detector finishes working.
In embodiment 2, the vibration device is specifically a cylinder, and the measurement device is specifically a laser displacement sensor.
The implementation process of the technical scheme is as follows:
(1) Before the road surface flatness detector is calibrated by using the device, a group of information for simulating the road surface flatness is set and input into the controller;
(2) Placing an air cylinder and a metal platform on a flat ground, and connecting and fixing the four air cylinders below four corners of the metal platform respectively;
(3) Placing a pavement evenness detector on a metal platform;
(4) The guide rail is vertically arranged on the metal platform, the sliding block is arranged on the guide rail in a sliding way, the position of the guide rail is adjusted to enable the sliding block to be positioned under a laser/continuous planeness measuring wheel of the laser planeness measuring instrument, the laser displacement sensor is arranged right above the sliding block, the motor is connected with the encoder and the sliding block,
(5) The cylinder, the motor, the encoder, the laser displacement sensor, the laser/measuring wheel and the display are respectively connected with the controller through wires;
(6) Starting a controller, wherein the controller controls a cylinder to accurately simulate vehicle vibration, and simultaneously controls a motor to drive an encoder and a sliding block to simulate and input road surface flatness information, a laser displacement sensor and a laser/measuring wheel accurately measure the sliding block movement, the measured data are displayed on a display after being processed by the controller, and are stored for standby, wherein synchronous measurement data of the laser displacement sensor are stored as measurement truth values for standby;
(7) The calibrating device of the road surface flatness detector finishes working.
The utility model provides an indoor calibrating installation and verification method of continuous type planeness appearance and on-vehicle laser planeness appearance, adopt vibrating device to simulate the vibration condition of vehicle when the road surface is gone, adopt controller control motor to drive encoder and slider motion simulation input's road surface roughness information, verification process can accomplish in the room, the outdoor road surface verification of comparing in the past has very big improvement verification efficiency, the operation environment of being examined equipment has been reduced more truer than conventional static verification, the accuracy of verification improves by a wide margin.
The device does not need the vehicle to run on an outdoor measurement road, saves the cost, avoids the influence of accidental factors such as the technology of a driver, the external environment and the like on the running stability of the vehicle, and further improves the reliability of verification results.
This patent degree of automation is high, does not need a large amount of manual operations, and verification efficiency is high, can show through the display and wait to examine equipment measurement value and examine the difference that equipment measured the truth value, and the examination result is more visual and more vivid.
The vibration device simulates the vibration and jolt condition of the vehicle when the vehicle runs on the road surface, so that the verification result is closer to reality; and the vibration device adopts cams, air cylinders and the like, so that the cost is low.
This patent simple structure, convenient operation, convenient to popularize and use.
The utility model provides a combine road surface roughness detector (continuous type planeness appearance/on-vehicle laser planeness appearance) and vibrating device and be used for examining and determine continuous type planeness appearance/on-vehicle laser planeness appearance for the first time, this patent only needs to adopt vibrating device, motor, encoder simulation vehicle to go, can carry out continuous type planeness appearance/on-vehicle laser planeness appearance's examination under indoor environment, need not the vehicle and goes on outdoor measurement road, has practiced thrift the cost, has ensured the accuracy of examination result.
The vibration devices are respectively arranged below the four corners of the metal platform and are used for simulating the vibration and jolt conditions of the vehicle when the vehicle runs on the road surface, so that the verification result is closer to reality; and the vibration device adopts cams, cylinders, crankshaft connecting rods and the like, so that the cost is low.
The displacement simulation device comprises a motor, a guide rail, a sliding block and an encoder, wherein the motor is connected with the encoder, the motor and the encoder are respectively connected with the controller through wires, the guide rail is perpendicular to a metal platform, the sliding block is slidably arranged on the guide rail, the controller controls the motor to draw the sliding block to move up and down along the guide rail, the movement of the sliding block reflects the flatness of a road surface, the position of the guide rail is adjusted to enable the sliding block to be located under a laser/continuous laser measuring wheel of the laser/continuous laser measuring wheel, the laser/continuous laser measuring wheel can accurately measure the movement of the sliding block, the laser/continuous laser measuring wheel is connected with the controller through wires, the measuring device is connected with the sliding block and synchronously measures the movement of the sliding block with the laser/measuring wheel, the measuring device is connected with the controller through wires, synchronous measured data of the measuring device is used as a measuring true value, the measured data of the laser/measuring wheel is compared with the measured true value, and the performance of the continuous laser/vehicle-mounted laser measuring instrument is judged.
The cam and the cylinder can be replaced by a crankshaft connecting rod and a vibrating table.
Claims (2)
1. The utility model provides a calibrating installation of road surface roughness detector which characterized in that: the device comprises a metal platform, a vibration device, a displacement simulation device, a measurement device, a controller and a display; the road surface flatness detector is arranged on the metal platform, a vibration device is respectively arranged below four corners of the metal platform and is used for simulating vehicle vibration, and the four vibration devices are respectively connected with the controller through wires; the displacement simulation device comprises a motor, a guide rail, a sliding block and an encoder, wherein the motor is connected with the encoder, the motor and the encoder are respectively connected with the controller through wires, the guide rail is perpendicular to the metal platform, the sliding block is arranged on the guide rail in a sliding manner, the controller controls the motor to pull the sliding block to move up and down along the guide rail, and the movement of the sliding block reflects the road surface flatness information;
the road surface flatness detector is a laser flatness detector or a continuous flatness detector; the position of the guide rail is adjusted to enable the sliding block to be positioned under a laser of the laser planeness instrument or a measuring wheel of the continuous planeness instrument, so that the laser of the laser planeness instrument or the measuring wheel of the continuous planeness instrument can accurately measure the movement of the sliding block, and the laser of the laser planeness instrument or the measuring wheel of the continuous planeness instrument is connected with the controller through a lead; the measuring device is connected with the sliding block, synchronously measures the movement of the sliding block with a laser of the laser planeness instrument or a measuring wheel of the continuous planeness instrument, and is connected with the controller through a wire; the display is connected with the controller through a wire, the measured data are displayed on the display after being processed by the controller, and then the data are stored for standby, wherein the synchronous measured data of the measuring device are stored for standby as a measuring true value.
2. A method for applying the device according to claim 1, characterized by the steps of:
(1) Before calibrating the road surface flatness detector, setting a group of information for simulating the road surface flatness, and inputting the information into the controller;
(2) Placing a vibration device and a metal platform on a flat ground, and respectively connecting and fixing the four vibration devices below four corners of the metal platform;
(3) Placing a pavement evenness detector on a metal platform;
(4) The guide rail is vertically arranged on the metal platform, the sliding block is arranged on the guide rail in a sliding way, the position of the guide rail is adjusted to enable the sliding block to be positioned under a laser of the laser planeness instrument or a measuring wheel of the continuous planeness instrument, the measuring device is connected with the sliding block, the motor is connected with the encoder and the sliding block,
(5) The vibration device, the motor, the encoder, the measuring device, the measuring wheel of the laser/the measuring wheel of the continuous planeness instrument of the laser planeness instrument and the display are respectively connected with the controller through wires;
(6) Starting a controller, wherein the controller controls a vibrating device to accurately simulate vehicle vibration, and simultaneously controls a motor to drive an encoder and a sliding block to simulate and input road surface flatness information, a measuring device and a laser of a laser flatness instrument or a measuring wheel of a continuous flatness instrument accurately measure the movement of the sliding block, measured data are displayed on a display after being processed by the controller, and are stored for standby, wherein synchronous measured data of the measuring device are stored as measurement truth values for standby;
(7) The calibrating device of the road surface flatness detector finishes working.
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| CN201711494165.9A CN107974907B (en) | 2017-12-31 | 2017-12-31 | Calibrating device and calibrating method for road surface flatness detector |
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| CN107974907B true CN107974907B (en) | 2023-09-22 |
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| CN111504358B (en) * | 2020-03-25 | 2021-08-20 | 浙江方易校准检测技术有限公司 | Vehicle-mounted integrated traffic test instrument calibration device |
| CN113235376B (en) * | 2021-06-03 | 2023-03-24 | 杨德生 | Automatic patching device of highway crack |
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| CN203768774U (en) * | 2014-03-05 | 2014-08-13 | 长安大学 | Rut form simulator for accuracy calibration of laser rut detection apparatus |
| KR20150084432A (en) * | 2014-01-14 | 2015-07-22 | 한국도로공사 | Road profile simulator and testing method for road profile measurement using the same |
| CN107024257A (en) * | 2017-06-01 | 2017-08-08 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of tracking mode limnimeter device for detecting performance parameter and method |
| CN207714102U (en) * | 2017-12-31 | 2018-08-10 | 交通运输部公路科学研究所 | A kind of calibrating installation of surface evenness detector |
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2017
- 2017-12-31 CN CN201711494165.9A patent/CN107974907B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011361A (en) * | 2010-09-14 | 2011-04-13 | 交通运输部公路科学研究所 | Performance metering method of vehicle-mounted laser evenness instrument |
| CN103426356A (en) * | 2013-07-16 | 2013-12-04 | 燕山大学 | Coupling movement simulation platform with four degrees of freedom |
| KR20150084432A (en) * | 2014-01-14 | 2015-07-22 | 한국도로공사 | Road profile simulator and testing method for road profile measurement using the same |
| CN203768774U (en) * | 2014-03-05 | 2014-08-13 | 长安大学 | Rut form simulator for accuracy calibration of laser rut detection apparatus |
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