CN106197329A - A kind of motion ground flatness detecting device, detecting system and detection method - Google Patents

A kind of motion ground flatness detecting device, detecting system and detection method Download PDF

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Publication number
CN106197329A
CN106197329A CN201610487033.2A CN201610487033A CN106197329A CN 106197329 A CN106197329 A CN 106197329A CN 201610487033 A CN201610487033 A CN 201610487033A CN 106197329 A CN106197329 A CN 106197329A
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CN
China
Prior art keywords
ground
detecting device
motion ground
motion
measurement
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Pending
Application number
CN201610487033.2A
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Chinese (zh)
Inventor
王宏棣
刘楠
刘一楠
何晓东
王子奇
周志芳
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HEILONGJIANG INSTITUTE OF WOOD SCIENCE
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HEILONGJIANG INSTITUTE OF WOOD SCIENCE
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Priority to CN201610487033.2A priority Critical patent/CN106197329A/en
Publication of CN106197329A publication Critical patent/CN106197329A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/30Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The open a kind of motion ground flatness detecting device of the present invention, detecting system and detection method, described motion ground flatness detecting device includes: main shaft, is vertically set on ground to be detected;Tripod, the cross bar of tripod is vertically fixed on described main shaft, and can rotate around major axis horizontal, and one end of cross bar is scale slide rail;Rotating driver, is fixed on described main shaft, is connected with described cross bar, is used for driving described cross bar to horizontally rotate;Laser range finder, is arranged on the scale slide rail of described cross bar, and can slide along described scale slide rail level, for measuring the apparent height of described ground to be measured various location.Motion ground flatness detecting device of the present invention drives scale slide rail and laser range finder to rotate by rotating driver, realize treating the measurement of the apparent height of geodetic face diverse location under different measuring radius, and then can determine that in surveyed planar range a little between relative height differential, thus effectively determine ground flat degree to be measured.

Description

A kind of motion ground flatness detecting device, detecting system and detection method
Technical field
The present invention relates to ground survey technical field, particularly relate to a kind of motion ground flatness detecting device, detection System and detection method.
Background technology
Amusement performance that sports field is predominantly applicable to hold on athletic ground, body-building, training, athletic competition etc. are comprehensive Sexual activity place.The athletic competition of high-grade specialty such as CBA, NBA etc. is typically carried out on special Sports floor, and must Must detect the indexs of correlation such as its flatness through professional institution, the relevant all technical of physical culture timber floor all meets state Can put into effect after the requirement that family's standard specifies.
The roughness index of sports field motion ground, will directly affect the performance of athlete's technical merit, athletic injury With fatigue, even personal safety.The ground in China overwhelming majority professional motion place is the bullets such as physical culture timber floor or rubber at present Gonosome.Its each structure sheaf is changed by factors such as foundation ground flatness, frequency of usage and indoor and outdoor surroundings aerial temperature and humidity, illumination Impact, surface layer and the overall structure on professional motion ground be easily deformed, and cause surface layer local occur uneven or Just inconsistent phenomenon.Not only affect the performance on its athletic ground, the people moved over also will be produced major safety risks.
And existing professional motion floor surface detecting instrument focuses mostly in surface layer surface abrasion resistance, frictional behaviour, bullet The detection of the aspect such as property and hardness.Detection equipment, detection method and quality judging for motion ground surface smoothness only limit Carry out standard value restriction in macroscopical and easy detection instrument and method, it is impossible to measure specify the ground flat degree in region and The relative height differential of multi-point, thus cause the flatness on athletic ground to differ greatly, it is impossible to reach high standard competitive sports and The construction standardization on movable requirement, the development limiting sports industry and professional motion ground is popularized.
Summary of the invention
It is an object of the invention to provide a kind of motion ground flatness detecting device, can effectively realize ground flat degree Measure, defect is vouched and analysis and evaluation.
For achieving the above object, the invention provides following scheme:
A kind of motion ground flatness detecting device, described motion ground flatness detecting device includes:
Main shaft, is vertically set on ground to be detected;
Tripod, the cross bar of described tripod is vertically fixed on described main shaft, and can turn around described major axis horizontal Dynamic, one end of described cross bar is scale slide rail;
Rotating driver, is fixed on described main shaft, is connected with described cross bar, is used for driving described cross bar to horizontally rotate;
Laser range finder, is arranged on the scale slide rail of described cross bar, and can slide along described scale slide rail level, For measuring the apparent height of described ground to be measured various location.
Optionally, described motion ground flatness detecting device also includes:
Base, fixes with described main shaft and is connected.
Optionally, described base is tripod type base.
Optionally, described tripod is integral type structure.
Optionally, the material of described tripod is alloy.
Optionally, described laser range finder is reflective triangulation laser range instrument.
The specific embodiment provided according to the present invention, the invention discloses techniques below effect:
Motion ground flatness detecting device of the present invention drives laser range finder to rotate by rotating driver, it is achieved not The same measurement measuring the apparent height treating geodetic face diverse location under radius, and then can determine that the relative height differential of multi-point, Thus effectively determine ground flat degree to be measured.
It is a further object of the present invention to provide a kind of motion ground planeness detection system, can effectively realize Land leveling The measurement of degree, defect are vouched and analysis and evaluation.
For achieving the above object, the invention provides following scheme:
A kind of motion ground planeness detection system, described detecting system includes;
Above-mentioned motion ground flatness detecting device;And
Control device, the table of the ground to be measured diverse location for measuring according to described motion ground flatness detecting device Face height, determines the flatness on described ground to be measured.
Optionally, described control device is additionally operable to the measurement starting point according to laser range finder, measurement time, measures radius And the velocity of rotation of rotating driver determines measurement position corresponding in described ground to be measured.
Relative to prior art, motion ground planeness detection system of the present invention and above-mentioned motion ground flatness detection dress The beneficial effect put is identical, does not repeats them here.
It is yet another object of the invention to provide a kind of motion ground measurement method of planeness, can effectively realize Land leveling The measurement of degree, defect are vouched and analysis and evaluation.
For achieving the above object, the invention provides following scheme:
A kind of motion ground measurement method of planeness, described motion ground measurement method of planeness uses above-mentioned motion ground Flatness detecting device or above-mentioned motion ground planeness detection system, described motion ground measurement method of planeness includes:
Repeatedly adjusting laser range finder position on scale slide rail, the measurement radius making adjustment laser range finder is Rn, Wherein, n represents the number of times of adjustment, n=1 ..., N, and N >=2, the measurement radius after every time adjusting is unequal;
Rotating driver drives cross bar rotating 360 degrees with the velocity of rotation set, and makes described laser range finder measure radius and is RnCircumference in the apparent height on ground described to be measured;
The apparent height measured under different measuring radius according to described laser range finder, determines with Rn-R1Circle for radius The flatness on the ground described to be measured in ring region territory.
Optionally, described motion ground measurement method of planeness also includes:
Measurement starting point, measurement time, measurement radius and the velocity of rotation of rotating driver according to laser range finder Determine measurement position corresponding in described ground to be measured.
Relative to prior art, motion ground measurement method of planeness of the present invention and above-mentioned motion ground flatness detection dress The beneficial effect put is identical, does not repeats them here.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings Obtain other accompanying drawing.
Fig. 1 is the structural representation of motion ground flatness detecting device of the present invention;
Fig. 2 is the modular structure schematic diagram of motion ground planeness detection system of the present invention;
Fig. 3 is the flow chart of motion ground measurement method of planeness of the present invention;
Fig. 4 is the measured zone schematic diagram under different measuring radius.
Symbol description:
Main shaft 1 tripod 2
Cross bar 21 scale slide rail 211
Rotating driver 3 laser range finder 4
Base 5 fastening bolt 6
Ground 7 to be measured.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
It is an object of the invention to provide a kind of motion ground flatness detecting device, drive Laser Measuring by rotating driver Distance meter rotates, it is achieved treats the measurement of the apparent height of geodetic face diverse location under different measuring radius, and then can determine that many Relative height differential between point, thus effectively determine ground flat degree to be measured.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, real with concrete below in conjunction with the accompanying drawings The present invention is further detailed explanation to execute mode.
As it is shown in figure 1, motion ground flatness detecting device of the present invention include main shaft 1, tripod 2, rotating driver 3 and Laser range finder 4.Wherein, described main shaft 1 is vertically set on ground 7 to be detected;The cross bar 21 of described tripod 2 is vertically fixed On described main shaft 1, and can horizontally rotate around described main shaft 1, one end of described cross bar 21 is scale slide rail 211;Described Rotating driver 3 is fixed on described main shaft 1, is connected with described cross bar 21, is used for driving described cross bar 21 to horizontally rotate;Described Laser range finder 4 is arranged on the scale slide rail 211 of described cross bar 21, and can slide along described scale slide rail 211 level, For measuring the apparent height of described ground to be measured 7 various location.
In the present embodiment, described laser range finder 4 is reflective triangulation laser range instrument, treats the surface in geodetic face 7 Highly measuring, measuring accuracy is higher, and measurement data can be directly recorded in computer convenient analysis.
For make described cross bar 21 along described main shaft 1 horizontally rotate time, the position of described main shaft immobilizes, the present invention move Ground flat degree detection device also includes base 5, and described base 5 is fixing with described main shaft 1 to be connected.Preferred version, described base 5 For tripod type base.
Further, described tripod 2 is integral type structure, to guarantee operating stability and accuracy.In this reality Execute in example, by fastening bolt 6, the top of described tripod 2 is fixed on described main shaft 1.The material of described tripod 2 can For alloy, but it is not limited thereto.
Another object of the present invention is to provide a kind of motion ground planeness detection system.As in figure 2 it is shown, present invention fortune Dynamic ground flat degree detecting system includes motion ground flatness detecting device and controls device, wherein, described control device The apparent height of the ground to be measured diverse location for measuring according to described motion ground flatness detecting device, determine described in treat The flatness in geodetic face.
Further, described control device is additionally operable to the measurement starting point according to laser range finder, measurement time, measures half The velocity of rotation of footpath and rotating driver determines measurement position corresponding in described ground to be measured.
It is discussed in detail with detailed description of the invention below:
First motion ground flatness detecting device is positioned in ground to be measured, reflective triangulation laser range instrument is adjusted Whole to be measured radius R1Place (R1Numerical value can read from scale slide rail 211) record measured zone central point and measure starting point, if Velocity of rotation α (degrees second) and the rotation original position of determining rotating driver 3 are 0 °, set described reflective triangulation laser range Signals collecting frequency b (secondary/second) of instrument.Measure beginning Vee formation frame at the uniform velocity to rotate around main shaft 1.Reflective triangulation laser range instrument Can record the apparent height of measured position, stop operating after cross bar 21 rotating 360 degrees, now recording radius is R1Circumference table Surface evenness data.Regulate reflective triangulation laser range instrument extremely radius R to be measured2Repeat aforesaid operations.Finally can be by reflection The data that formula triangulation laser range instrument gathers are drawn with RN-R1For the measurement plane in the circular ring type region of radius, and determine multiple spot Between relative height differential.According to measuring starting point and time t × velocity of rotation α can also be measured and measure radius RNDetermine a certain The particular location of point, in order to carry out suitable process and repairing.
Additionally, the present invention also provides for a kind of motion ground measurement method of planeness, described motion ground flatness detection side Method uses above-mentioned motion ground flatness detecting device or above-mentioned motion ground planeness detection system to detect.
As it is shown on figure 3, motion ground measurement method of planeness of the present invention includes:
Step 100: repeatedly adjust laser range finder position on scale slide rail, makes the measurement half of adjustment laser range finder Footpath is Rn.Wherein, n represents the number of times of adjustment, n=1 ..., N, and N >=2, the measurement radius after every time adjusting is unequal (such as Fig. 4 Shown in, measure radius adjustable).
Step 200: rotating driver drives cross bar rotating 360 degrees with the velocity of rotation set, and makes described laser range finder survey Amount radius is RnCircumference in the apparent height on ground described to be measured.
Step 300: the apparent height measured under different measuring radius according to described laser range finder, determines with Rn-R1For The flatness on the ground described to be measured in the circle ring area of radius.
Further, motion ground measurement method of planeness of the present invention also includes: initiate according to the measurement of laser range finder The velocity of rotation of point, measurement time, measurement radius and rotating driver determines measurement position corresponding in described ground to be measured Put, in order to be further analyzed and repair.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Principle and the embodiment of the present invention are set forth by specific case used herein, saying of above example Bright method and the core concept thereof being only intended to help to understand the present invention;Simultaneously for one of ordinary skill in the art, foundation The thought of the present invention, the most all will change.In sum, this specification content is not It is interpreted as limitation of the present invention.

Claims (10)

1. a motion ground flatness detecting device, it is characterised in that described motion ground flatness detecting device includes:
Main shaft, is vertically set on ground to be detected;
Tripod, the cross bar of described tripod is vertically fixed on described main shaft, and can rotate around described major axis horizontal, institute The one end stating cross bar is scale slide rail;
Rotating driver, is fixed on described main shaft, is connected with described cross bar, is used for driving described cross bar to horizontally rotate;
Laser range finder, is arranged on the scale slide rail of described cross bar, and can slide along described scale slide rail level, is used for Measure the apparent height of described ground to be measured various location.
Motion ground flatness detecting device the most according to claim 1, it is characterised in that described motion ground flatness Detection device also includes:
Base, fixes with described main shaft and is connected.
Motion ground flatness detecting device the most according to claim 2, it is characterised in that described base is at the bottom of tripod type Seat.
4. according to the motion ground flatness detecting device according to any one of claim 1-3, it is characterised in that described triangle Frame is integral type structure.
5. according to the motion ground flatness detecting device according to any one of claim 1-3, it is characterised in that described triangle The material of frame is alloy.
6. according to the motion ground flatness detecting device according to any one of claim 1-3, it is characterised in that described laser Diastimeter is reflective triangulation laser range instrument.
7. a motion ground planeness detection system, it is characterised in that described detecting system includes;
According to the motion ground flatness detecting device according to any one of claim 1-6;And
Control device, the surface of the ground to be measured various location for measuring according to described motion ground flatness detecting device Highly, the flatness on described ground to be measured is determined.
Motion ground planeness detection system the most according to claim 7, it is characterised in that described control device is additionally operable to The velocity of rotation of measurement starting point, measurement time, measurement radius and rotating driver according to laser range finder determines in institute State measurement position corresponding in ground to be measured.
9. a motion ground measurement method of planeness, it is characterised in that described motion ground measurement method of planeness uses root According to the motion ground flatness detecting device according to any one of claim 1-6 or according to the motion described in claim 7 or 8 Ground flat degree detecting system, described motion ground measurement method of planeness includes:
Repeatedly adjusting laser range finder position on scale slide rail, the measurement radius making adjustment laser range finder is Rn, wherein, n The number of times that expression adjusts, n=1 ..., N, and N >=2, the measurement radius after every time adjusting is unequal;
Rotating driver drives cross bar rotating 360 degrees with the velocity of rotation set, and making described laser range finder measure radius is Rn's The apparent height on the ground described to be measured in circumference;
The apparent height measured under different measuring radius according to described laser range finder, determines with Rn-R1Annular regions for radius The flatness on the ground described to be measured in territory.
Motion ground measurement method of planeness the most according to claim 9, it is characterised in that described motion ground is smooth Degree detection method also includes:
The velocity of rotation of measurement starting point, measurement time, measurement radius and rotating driver according to laser range finder determines Measurement position corresponding in described ground to be measured.
CN201610487033.2A 2016-06-28 2016-06-28 A kind of motion ground flatness detecting device, detecting system and detection method Pending CN106197329A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106767742A (en) * 2016-12-29 2017-05-31 西京学院 Perpendicularity and smoothness intelligent detection ruler and its measuring method
CN107576267A (en) * 2017-09-07 2018-01-12 哈尔滨工业大学 A kind of precision measurement method in place of boart boart wheel disc dressing accuracy
CN107607077A (en) * 2017-08-31 2018-01-19 无锡厚发自动化设备有限公司 Building ground measurement method of planeness
CN107607078A (en) * 2017-08-31 2018-01-19 无锡厚发自动化设备有限公司 Building ground roughness detection equipments
CN108195323A (en) * 2018-03-28 2018-06-22 中冶建工集团有限公司 A kind of degree of plainness for wall surface measuring method
CN108489429A (en) * 2018-03-28 2018-09-04 中冶建工集团有限公司 A kind of degree of plainness for wall surface measuring device
CN108981645A (en) * 2018-06-26 2018-12-11 赵晓晨 A kind of smooth measuring device for building
CN109084706A (en) * 2018-06-25 2018-12-25 天津大学 Robot measurement athletic ground universe flatness automatic testing method and device
CN111141236A (en) * 2020-02-18 2020-05-12 中建八局轨道交通建设有限公司 Flatness measuring device and using method thereof
CN112525081A (en) * 2020-11-16 2021-03-19 广东九联科技股份有限公司 Measuring method based on laser displacement
CN114324822A (en) * 2021-12-31 2022-04-12 临沂市兰山区自然资源开发服务中心 Land quality monitoring system and method based on big data

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200982853Y (en) * 2006-08-25 2007-11-28 佛山市顺德区汉达精密电子科技有限公司 Tool for detecting product surface smoothness or overlap
CN101109632A (en) * 2007-07-24 2008-01-23 广州广船国际股份有限公司 Flatness checking device and method of using the same
CN201339159Y (en) * 2008-12-31 2009-11-04 长安大学 Laser pavement evenness testing apparatus
CN102628667A (en) * 2012-05-04 2012-08-08 南京三邦金属复合材料有限公司 Unevenness detecting device and detecting method for composite material plate
CN203530824U (en) * 2013-09-30 2014-04-09 长安大学 Portable pavement smoothness laser detector with three-meter straight rule
CN103940380A (en) * 2014-04-08 2014-07-23 广东正业科技股份有限公司 Planeness test method and device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200982853Y (en) * 2006-08-25 2007-11-28 佛山市顺德区汉达精密电子科技有限公司 Tool for detecting product surface smoothness or overlap
CN101109632A (en) * 2007-07-24 2008-01-23 广州广船国际股份有限公司 Flatness checking device and method of using the same
CN201339159Y (en) * 2008-12-31 2009-11-04 长安大学 Laser pavement evenness testing apparatus
CN102628667A (en) * 2012-05-04 2012-08-08 南京三邦金属复合材料有限公司 Unevenness detecting device and detecting method for composite material plate
CN203530824U (en) * 2013-09-30 2014-04-09 长安大学 Portable pavement smoothness laser detector with three-meter straight rule
CN103940380A (en) * 2014-04-08 2014-07-23 广东正业科技股份有限公司 Planeness test method and device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106767742A (en) * 2016-12-29 2017-05-31 西京学院 Perpendicularity and smoothness intelligent detection ruler and its measuring method
CN107607078B (en) * 2017-08-31 2019-09-13 无锡厚发自动化设备有限公司 Building ground roughness detection equipments
CN107607077A (en) * 2017-08-31 2018-01-19 无锡厚发自动化设备有限公司 Building ground measurement method of planeness
CN107607078A (en) * 2017-08-31 2018-01-19 无锡厚发自动化设备有限公司 Building ground roughness detection equipments
CN107607077B (en) * 2017-08-31 2019-09-13 无锡厚发自动化设备有限公司 Building ground measurement method of planeness
CN107576267A (en) * 2017-09-07 2018-01-12 哈尔滨工业大学 A kind of precision measurement method in place of boart boart wheel disc dressing accuracy
CN108195323A (en) * 2018-03-28 2018-06-22 中冶建工集团有限公司 A kind of degree of plainness for wall surface measuring method
CN108489429A (en) * 2018-03-28 2018-09-04 中冶建工集团有限公司 A kind of degree of plainness for wall surface measuring device
CN109084706A (en) * 2018-06-25 2018-12-25 天津大学 Robot measurement athletic ground universe flatness automatic testing method and device
CN108981645A (en) * 2018-06-26 2018-12-11 赵晓晨 A kind of smooth measuring device for building
CN111141236A (en) * 2020-02-18 2020-05-12 中建八局轨道交通建设有限公司 Flatness measuring device and using method thereof
CN112525081A (en) * 2020-11-16 2021-03-19 广东九联科技股份有限公司 Measuring method based on laser displacement
CN114324822A (en) * 2021-12-31 2022-04-12 临沂市兰山区自然资源开发服务中心 Land quality monitoring system and method based on big data

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