CN103697813B - Ballastless track slab dimension detection method and device - Google Patents

Ballastless track slab dimension detection method and device Download PDF

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Publication number
CN103697813B
CN103697813B CN201310747631.5A CN201310747631A CN103697813B CN 103697813 B CN103697813 B CN 103697813B CN 201310747631 A CN201310747631 A CN 201310747631A CN 103697813 B CN103697813 B CN 103697813B
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China
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fragment
track slab
free track
point
coordinate
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CN201310747631.5A
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Chinese (zh)
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CN103697813A (en
Inventor
张书国
刘歆泽
温辉
李拴虎
范宏生
吴晓俊
歧志强
勾志阳
王孟
陈波
董博峰
高涛
曾建国
朱建军
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中建铁路建设有限公司
北京普达迪泰科技有限公司
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Abstract

The present invention proposes a kind of ballastless track slab dimension detection method and device, said method comprising the steps of: step S1: from different directions and described fragment-free track slab is shot by position, obtain multiple image photographs of fragment-free track slab, step S2: the plurality of image photograph is carried out image procossing, obtains the three-dimensional coordinate of multiple photographic measurement points on this fragment-free track slab surface;Step S3: mated with the threedimensional model of this fragment-free track slab by the three-dimensional coordinate of the plurality of photographic measurement point, obtains the some cloud shape of described fragment-free track slab;Step S4: the some cloud of described fragment-free track slab is fitted corresponding to the measurement point set of identical faces on this threedimensional model in shape, and calculates the value of described fragment-free track slab size detection amount.Present invention achieves the size measuring fragment-free track slab rapidly and accurately, speed is fast, degree of accuracy is high and simple and efficient to handle, low cost in its detection.

Description

Ballastless track slab dimension detection method and device

Technical field

The present invention relates to train rail field of measuring technique, particularly to a kind of ballastless track slab dimension detection method and dress Put.

Background technology

In recent years, along with socioeconomic lifting, the urban rail transit construction of China is developed the most greatly, the highest Speed railroad train, has formed the High-speed Railway Network begun to take shape, and it is the most convenient to bring for the trip of people, improves and takes advantage of Comfort level by train.

In electrified high speed railway track is laid, generally using CRTS i.e. fragment-free track slab, it is broadly divided into CRTSI Type fragment-free track slab, CRTSII type fragment-free track slab, CRTSIII type fragment-free track slab, CRTSI type double-block type ballastless track plate and CRTSII type double-block type ballastless track plate.Wherein, CRTSIII type fragment-free track slab (CRTS III, Slab Ballastless Track) refer to that precast track plate passes through cement asphalt mortar adjustment layer, concrete support layer that the scene of being laid on paves or scene On the reinforced concrete footing (bridge) of cast and spacing to every block of plate, adapt to the continuous orbit of ZPW-2000 track circuit Plate ballastless track structure pattern.

At present, the traditional measuring method of above-mentioned fragment-free track slab is mainly manually used steel ruler, slide gauge, omnipotent The physical dimension needing detection is measured by bevel protractor and corresponding frock one by one, or uses then with prismosphere and matching tooling thereof Measured by total powerstation.Big amount measurement data needs to put into manual record and calculating, finally by all detection data summarization. Not only put into a large amount of manpower and time from measuring data process, and the personal error detected is bigger.

Summary of the invention

The purpose of the present invention is to propose to a kind of ballastless track slab dimension detection method and device, can measure rapidly and accurately The size of fragment-free track slab, speed is fast, degree of accuracy is high and simple and efficient to handle, low cost in its detection.

For reaching above-mentioned purpose, the present invention proposes a kind of ballastless track slab dimension detection method, comprises the following steps:

Step S1: lay multiple photographic measurement points and coded target on fragment-free track slab surface to be measured, and at this Fragment-free track slab surface or fragment-free track slab are placed around, from different directions and described fragment-free track slab is shot by position, Obtaining multiple image photographs of fragment-free track slab, wherein, in the plurality of image photograph, shooting has the plurality of photographic measurement point, volume In code mark point and two gauges, and adjacent the plurality of image photograph, shooting has the coded target that at least four is identical;

Step S2: according to multiple photographic measurement points, coded target and two gauges in the plurality of image photograph, right The plurality of image photograph carries out image procossing, obtains the three-dimensional coordinate of multiple photographic measurement points on this fragment-free track slab surface;

Step S3: the threedimensional model of this fragment-free track slab is provided, by the three-dimensional coordinate of the plurality of photographic measurement point with should The threedimensional model of fragment-free track slab mates, and obtains the some cloud shape of described fragment-free track slab;

Step S4: by the some cloud of described fragment-free track slab in shape corresponding to the measurement point set of identical faces on this threedimensional model It is fitted, and calculates the value of described fragment-free track slab size detection amount.

Further, in above-mentioned ballastless track slab dimension detection method, the plurality of coded target is uniformly laid in this The surface of fragment-free track slab, and each the plurality of image photograph photograph at least four coded target.

Further, in above-mentioned ballastless track slab dimension detection method, described step S2 specifically includes:

Step S21: according to the multiple photographic measurement points in image photograph, identify this photograph by image recognition algorithm and survey Measure the edge of point and extract the MARG of identification, being measured the center of point by this MARG location;

Step S22: according to the multiple coded targets in image photograph, by the coding of coding identical in different images photograph Index point mates, so that the splicing of the plurality of image photograph to obtain the panoramic picture of this fragment-free track slab;

Step S23: according to the MARG of the plurality of photographic measurement point, calculate this without tiny fragments of stone, coal, etc. rail by bundle adjustment The three-dimensional coordinate of multiple photographic measurement points in the panoramic picture of guidance tape, i.e. obtains the cloud of this fragment-free track slab surface photographic measurement point Data.

Further, in above-mentioned ballastless track slab dimension detection method, described step S22 specifically includes:

Identify the multiple coded targets in this image photograph;

The masterplate index point of the coded target that will identify that and lane database is compared, and obtains in image photograph many The coding of individual coded target;

The coded target of coding identical in different images photograph is mated, so that the plurality of image photograph is spliced Obtain the panoramic picture of this fragment-free track slab.

Further, in above-mentioned ballastless track slab dimension detection method, described step S3 specifically includes:

The threedimensional model of this fragment-free track slab is provided;

Measurement coordinate system according to the plurality of photographic measurement point three-dimensional coordinate and the modelling coordinate system of threedimensional model In common point coordinate, obtain the conversion parameter of described measurement coordinate system and modelling coordinate system, and according to described conversion ginseng Described measurement coordinate system is carried out, with modelling coordinate system, coupling of aliging by number;

Or by iteration, with threedimensional model, minimum is carried out to the three-dimensional coordinate of the plurality of photographic measurement point with regard to proximal point algorithm Two take advantage of iteration, thus are mated with threedimensional model by the three-dimensional coordinate of the plurality of photographic measurement point;

The point cloud shape of described fragment-free track slab is simulated according to above-mentioned matching result.

Further, in above-mentioned ballastless track slab dimension detection method, described step S4 also includes: according to described rail without the tiny fragments of stone, coal, etc. The geometrical relationship of guidance tape size detection amount carries out calculating generating measures form.

The present invention also provides for a kind of fragment-free track slab size detecting device, for detecting the size of fragment-free track slab, described Detection device includes: be laid in multiple photographic measurement points and coded target, two gauges, the number on described fragment-free track slab surface Code video camera and image processing system, described two gauges are positioned near this fragment-free track slab surface or fragment-free track slab, Described DV is used for from different directions and described fragment-free track slab is shot by position, obtains fragment-free track slab many Individual image photograph, wherein, in the plurality of image photograph, shooting has the plurality of photographic measurement point, coded target and two standards In chi, and adjacent the plurality of image photograph, shooting has the coded target that at least four is identical;

Described image processing system includes:

Coordinate obtaining module, for according to the multiple photographic measurement points in the plurality of image photograph, coded target and Two gauges, carry out image procossing to the plurality of image photograph, obtain multiple photographic measurement points on this fragment-free track slab surface Three-dimensional coordinate;

Coordinate matching module, it is connected to described coordinate obtaining module, for by the three-dimensional seat of the plurality of photographic measurement point Mark mates with the threedimensional model of this fragment-free track slab, obtains the some cloud shape of described fragment-free track slab;

And the Fitting Calculation module, it is connected to described coordinate matching module, for by the some cloud shape of described fragment-free track slab It is fitted corresponding to the measurement point set of identical faces on this threedimensional model on shape, and calculates described fragment-free track slab size detection amount Value.

Further, in above-mentioned fragment-free track slab size detecting device, described image processing system also includes being connected to institute State the measurement report generation module of the Fitting Calculation module, for entering according to the geometrical relationship of described fragment-free track slab size detection amount Row calculates to generate measures form.

Further, in above-mentioned fragment-free track slab size detecting device, the plurality of photographic measurement point is circular, and uses Retro-reflective target that retroreflecting material is made or laser transmitter projects laser spots.

Further, in above-mentioned fragment-free track slab size detecting device, the plurality of coded target is circular and uniform It is laid in the surface of this fragment-free track slab, each the plurality of image photograph photographs at least four coded target.

Ballastless track slab dimension detection method of the present invention and device achieve measures fragment-free track slab rapidly and accurately Size, speed is fast, degree of accuracy is high and simple and efficient to handle, low cost in its detection.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of ballastless track slab dimension detection method of the present invention;

Fig. 2 is the idiographic flow schematic diagram of step S2 in Fig. 1;

Fig. 3 is the structural representation of fragment-free track slab size detecting device of the present invention;

Fig. 4 is the principle schematic of fragment-free track slab size detecting device of the present invention;

Fig. 5 is that the double ratio before and after the projection of 4 points defines schematic diagram respectively.

Detailed description of the invention

Describe the preferred embodiments of the present invention below in conjunction with the accompanying drawings in detail.

Referring to Fig. 1, ballastless track slab dimension detection method of the present invention comprises the following steps:

Step S1: lay multiple photographic measurement points and coded target on fragment-free track slab surface to be measured, and at this Fragment-free track slab surface or fragment-free track slab are placed around, from different directions and described fragment-free track slab is shot by position, Obtaining multiple image photographs of fragment-free track slab, wherein, in the plurality of image photograph, shooting has the plurality of photographic measurement point, volume In code mark point and two gauges, and adjacent the plurality of image photograph, shooting has the coded target that at least four is identical;

Step S2: according to multiple photographic measurement points, coded target and two gauges in the plurality of image photograph, right The plurality of image photograph carries out image procossing, obtains the three-dimensional coordinate of multiple photographic measurement points on this fragment-free track slab surface;

Step S3: provide the threedimensional model (IGS model) of this fragment-free track slab, by the three-dimensional of the plurality of photographic measurement point Coordinate mates with the threedimensional model of this fragment-free track slab, obtains the some cloud shape of described fragment-free track slab;Described some cloud shape Shape is formed by the three-dimensional coordinate of each photographic measurement point of this fragment-free track slab surface.

Step S4: by the some cloud of described fragment-free track slab in shape corresponding to the measurement point set of identical faces on this threedimensional model It is fitted, and calculates the value of described fragment-free track slab size detection amount.

Wherein, in described step S1, fragment-free track slab to be measured includes multiple track set gradually, the plurality of Photographic measurement point can be laid in each surface of this fragment-free track slab, and on the most the plurality of track, this photographic measurement point is permissible Use the retro-reflective target that retroreflecting material is made, it would however also be possible to employ laser transmitter projects laser spots etc., as long as Energy blur-free imaging is in image photograph.In the present embodiment, the plurality of photographic measurement point is circular, it is possible to for square or its His shape;Laser transmitter projects laser spots is used to form photographic measurement point to fragment-free track slab surface.

The plurality of coded target is uniformly laid in the surface of this fragment-free track slab, it is possible to be uniformly laid in individually volume Code controlling filed so that photograph at least four coded target during shooting in each the plurality of image photograph, thus can profit The automatic Mosaic between different photograph can be realized with coding maker.In the present embodiment, the plurality of coded target is circular, also Can be square or other shapes.

Described two gauges are demarcated through measurement unit, can provide length standard for whole measurement.Described two gauges Can be positioned near this fragment-free track slab surface or fragment-free track slab, as long as making described two gauges can be taken into image In photograph.In the present embodiment, described two gauges are perpendicular to this fragment-free track slab length direction and are positioned over this without tiny fragments of stone, coal, etc. rail The surface of guidance tape.

Described from different directions and described fragment-free track slab is shot by position, obtain multiple images of fragment-free track slab The step of photograph specifically includes: shoot by the measurement camera upper and lower, the left and right all directions from this fragment-free track slab and position, In the plurality of image photograph, shooting has the plurality of photographic measurement point, coded target and two gauges, and adjacent described many In individual image photograph, shooting has the coded target that at least four is identical.

Referring to Fig. 2, described step S2 specifically includes:

Step S21: according to the multiple photographic measurement points in image photograph, identify this photograph by image recognition algorithm and survey Measure the edge of point and extract the MARG of identification, being measured the center of point by this MARG location;

Step S22: according to the multiple coded targets in image photograph, by the coding of coding identical in different images photograph Index point mates, so that the splicing of the plurality of image photograph to obtain the panoramic picture of this fragment-free track slab;

Step S23: according to the MARG of the plurality of photographic measurement point, calculate this without tiny fragments of stone, coal, etc. rail by bundle adjustment The three-dimensional coordinate of multiple photographic measurement points in the panoramic picture of guidance tape, i.e. obtains the cloud of this fragment-free track slab surface photographic measurement point Data.

Wherein, described step S22 specifically includes:

Identify the multiple coded targets in this image photograph;

The masterplate index point of the coded target that will identify that and lane database is compared, and obtains in image photograph many The coding of individual coded target;

The coded target of coding identical in different images photograph is mated, so that the plurality of image photograph is spliced Obtain the panoramic picture of this fragment-free track slab.

Wherein, the step identifying multiple coded targets in this image photograph described in is as follows:

Owing to coded target is the point set that have several round dot to constitute one group has special relativeness, therefore, first It is the boundary line utilizing each circle of edge detection algorithm identification, thus asks for each home position coordinate;Secondly, each by ask for Central coordinate of circle, calculates their double ratio value, within the double ratio value calculated meets the threshold range that we set, then confirms to identify and is somebody's turn to do Point set is coded target.

Double ratio value invariant is the fundamental invariant under perspective projection, and double ratio is come according to 4 some distances on same straight line Definition, as above in figure, double ratio before and after the projection of 4 points defines respectively and sees Fig. 5:

May certify that and there is following relation

In described step S23, bundle adjustment calculating process is as follows:

Bundle adjustment is to be a unit with every space light, utilizes photographic measurement point, corresponding picture point and image center Point three point on a straight line condition, by collinear condition, can list following two relation formula to each picture point:

The error equation of bundle adjustment is i.e. can get after above formula is carried out linearisation.

Described step S3 specifically includes:

The threedimensional model of this fragment-free track slab is provided;This threedimensional model can be the IGS model in cad file.

Measurement coordinate system according to the plurality of photographic measurement point three-dimensional coordinate and the modelling coordinate system of threedimensional model In common point coordinate, obtain the conversion parameter of described measurement coordinate system and modelling coordinate system, and according to described conversion ginseng Described measurement coordinate system is carried out, with modelling coordinate system, coupling of aliging by number, i.e. realizes described measurement coordinate system and modelling Optimization conversion between coordinate system;

Or by iteration with regard to proximal point algorithm (ICP algorithm) to the three-dimensional coordinate of the plurality of photographic measurement point and threedimensional model Carry out least-squares iteration, thus the three-dimensional coordinate of the plurality of photographic measurement point is mated with threedimensional model;

The point cloud shape of described fragment-free track slab is simulated according to above-mentioned matching result.

Wherein, due to the complexity on track plates surface, it is difficult to be quickly obtained the plurality of photographic measurement point to three-dimensional mould The initial value that the Projection Iteration on type surface calculates, it is possible to use QuadTree algorithm improves the calculating speed of free form surface subpoint initial value Degree, this QuadTree algorithm is particularly as follows: plane is divided into a space partitioning system of four parts, and each plane is permissible Continuing as required to be subdivided into four parts, until meeting condition, thus being the successive iterations step with regard to proximal point algorithm (ICP algorithm) One good prerequisite condition of rapid offer.

Described step S4 also includes: carries out calculating generating according to the geometrical relationship of described fragment-free track slab size detection amount and surveys Amount form.

May certify that the method is asked for each detection limit range of error and all met track plates design requirement by calculating.

As shown in the table, slope design required value and range of error are 1:37 ~ 1:43, and the value of slope of calculating is all at this model Within enclosing.

Referring to 3 and Fig. 4, the present invention also provides for a kind of fragment-free track slab size detecting device, is used for detecting non-fragment orbit The size of plate 100, described detection device includes: is laid in multiple photographic measurement points 1 on described fragment-free track slab 100 surface and compiles Code mark point 2, two gauge 3, DV 4 and image processing system 5, described two gauges 3 are positioned over this without tiny fragments of stone, coal, etc. rail Near guidance tape 100 surface or fragment-free track slab 100, described DV 4 for from different directions and position to described without the tiny fragments of stone, coal, etc. Track plate 100 shoots, and obtains multiple image photographs of fragment-free track slab 100, wherein, shoots in the plurality of image photograph Have in the plurality of photographic measurement point 1, coded target 2 and two gauges 3, and adjacent the plurality of image photograph shooting have to Few four identical coded targets;

Described image processing system 5 includes: coordinate obtaining module 52, coordinate matching module 54 and the Fitting Calculation module 56, described coordinate obtaining module 52 for according to the multiple photographic measurement points in the plurality of image photograph, coded target and Two gauges, carry out image procossing to the plurality of image photograph, obtain multiple photographic measurement points on this fragment-free track slab surface Three-dimensional coordinate;Described coordinate matching module 54 is connected to described coordinate obtaining module 52, for by the plurality of photographic measurement The three-dimensional coordinate of point mates with the threedimensional model of this fragment-free track slab, obtains the some cloud shape of described fragment-free track slab;Institute State the Fitting Calculation module 56 and be connected to described coordinate matching module 54, for by the most corresponding for the some cloud of described fragment-free track slab On this threedimensional model, the measurement point set of identical faces is fitted, and calculates the value of described fragment-free track slab size detection amount.

Described image processing system 5 also includes measuring report generation module 58, is connected to described the Fitting Calculation module 56, uses Form is measured in carrying out calculating generating according to the geometrical relationship of described fragment-free track slab size detection amount.

In the present embodiment, the plurality of photographic measurement point 1 and coded target 2 are circle, it is possible to for square or other Shape.

The plurality of photographic measurement point 1 can be laid in each surface of this fragment-free track slab 100, the most the plurality of track On 6, this photographic measurement point 1 can use the retro-reflective target that retroreflecting material is made, it would however also be possible to employ laser is sent out Emitter projection laser spots etc., as long as energy blur-free imaging is in image photograph.The present embodiment use generating laser 7 project Laser spots forms photographic measurement point to fragment-free track slab surface.

The plurality of coded target 2 is uniformly laid in the surface of this fragment-free track slab 100, it is possible to be uniformly laid in individually Coding-control field, multiple coded targets described in the present embodiment are uniformly laid in a coding support 8 and form coding-control So that each the plurality of image photograph photographs during shooting at least four coded target, thus available coding Mark can realize the automatic Mosaic between different photograph.

Compared to prior art, ballastless track slab dimension detection method of the present invention and device are by by measurement point, encoded point And station meter etc. is laid on fragment-free track slab to be measured, controls camera and shooting obtains image photograph;Finally by shooting Image photograph carries out mating, adjustment, calculating detection limit automatically generate detection limit form.

Traditional measuring method detects one piece of track plates needs time-consuming about 40 minutes, but also do not include data compilation time Between.And the method that ballastless track slab dimension detection method of the present invention and device use photographic measurement, not only speed is fast, measurement data Accurately, and the manpower put into is also few.The present invention passes through field conduct, measures one piece of track plates and shortened to from original 40 minutes 5 minutes, measurement progress reached 0.01mm, substantially increased efficiency and the precision of detection, and time and manpower is saved puts into.

To sum up, ballastless track slab dimension detection method of the present invention and device achieve and measure non-fragment orbit rapidly and accurately The size of plate, speed is fast, degree of accuracy is high and simple and efficient to handle, low cost in its detection.

Here description of the invention and application is illustrative, is not wishing to limit the scope of the invention to above-described embodiment In.The deformation of embodiments disclosed herein and change are possible, real for those skilled in the art The various parts with equivalence of replacing executing example are known.It should be appreciated by the person skilled in the art that without departing from the present invention Spirit or essential characteristics in the case of, the present invention can in other forms, structure, layout, ratio, and with other assembly, Material and parts realize.In the case of without departing from scope and spirit of the present invention, embodiments disclosed herein can be entered Other deformation of row and change.

Claims (7)

1. a ballastless track slab dimension detection method, it is characterised in that comprise the following steps:
Step S1: lay multiple photographic measurement points and coded target on fragment-free track slab surface to be measured, and at this without the tiny fragments of stone, coal, etc. Track plates surface or fragment-free track slab are placed around two gauges, from different directions and described fragment-free track slab is carried out by position Shooting, obtains multiple image photographs of fragment-free track slab, and wherein, in the plurality of image photograph, shooting has the plurality of photographic measurement In point, coded target and two gauges, and adjacent the plurality of image photograph, shooting has the coding mark that at least four is identical Will point;
Step S2: according to multiple photographic measurement points, coded target and two gauges in the plurality of image photograph, to described Multiple image photographs carry out image procossing, obtain the three-dimensional coordinate of multiple photographic measurement points on this fragment-free track slab surface;
Step S3: the threedimensional model of this fragment-free track slab is provided, by the three-dimensional coordinate of the plurality of photographic measurement point with this without the tiny fragments of stone, coal, etc. The threedimensional model of track plates mates, and obtains the some cloud shape of described fragment-free track slab;
Step S4: the some cloud of described fragment-free track slab is carried out corresponding to the measurement point set of identical faces on this threedimensional model in shape Matching, and calculate the value of described fragment-free track slab size detection amount;
The plurality of coded target is uniformly laid in the surface of this fragment-free track slab, and each the plurality of image photograph bat Take the photograph at least four coded target;
Described step S2 specifically includes:
Step S21: according to the multiple photographic measurement points in image photograph, identify this photographic measurement point by image recognition algorithm Edge and extract the MARG of identification, measured the center of point by this MARG location;
Step S22: according to the multiple coded targets in image photograph, by the coding maker of coding identical in different images photograph Point mates, so that the splicing of the plurality of image photograph to obtain the panoramic picture of this fragment-free track slab;
Step S23: according to the MARG of the plurality of photographic measurement point, calculate this fragment-free track slab by bundle adjustment Panoramic picture in the three-dimensional coordinate of multiple photographic measurement points, i.e. obtain the cloud number of this fragment-free track slab surface photographic measurement point According to.
Ballastless track slab dimension detection method the most according to claim 1, it is characterised in that described step S22 is specifically wrapped Include:
Identify the multiple coded targets in this image photograph;
The masterplate index point of the coded target that will identify that and lane database is compared, and obtains the multiple volumes in image photograph The coding of code mark point;
The coded target of coding identical in different images photograph is mated, so that the splicing of the plurality of image photograph is obtained The panoramic picture of this fragment-free track slab.
Ballastless track slab dimension detection method the most according to claim 1, it is characterised in that described step S3 is specifically wrapped Include:
The threedimensional model of this fragment-free track slab is provided;
According in the plurality of measurement coordinate system of photographic measurement point three-dimensional coordinate and the modelling coordinate system of threedimensional model Common point coordinate, obtains the conversion parameter of described measurement coordinate system and modelling coordinate system, and will according to described conversion parameter Described measurement coordinate system carries out, with modelling coordinate system, coupling of aliging;
Or by iteration, with threedimensional model, least square is carried out to the three-dimensional coordinate of the plurality of photographic measurement point with regard to proximal point algorithm Iteration, thus the three-dimensional coordinate of the plurality of photographic measurement point is mated with threedimensional model;
The point cloud shape of described fragment-free track slab is simulated according to above-mentioned matching result.
Ballastless track slab dimension detection method the most according to claim 1, it is characterised in that described step S4 also includes: Geometrical relationship according to described fragment-free track slab size detection amount carries out calculating generating measures form.
5. a fragment-free track slab size detecting device, for detecting the size of fragment-free track slab, it is characterised in that described detection Device includes: be laid in multiple photographic measurement points on described fragment-free track slab surface and coded target, two gauges, number are taken the photograph Camera and image processing system, described two gauges are positioned near this fragment-free track slab surface or fragment-free track slab, described DV is used for from different directions and described fragment-free track slab is shot by position, obtains multiple shadows of fragment-free track slab As photograph, wherein, in the plurality of image photograph, shooting has the plurality of photographic measurement point, coded target and two gauges, and In adjacent the plurality of image photograph, shooting has the coded target that at least four is identical;
Described image processing system includes:
Coordinate obtaining module, for according to the multiple photographic measurement points in the plurality of image photograph, coded target and two mark Object staff, carries out image procossing to the plurality of image photograph, obtain this fragment-free track slab surface multiple photographic measurement points three Dimension coordinate;
Coordinate matching module, be connected to described coordinate obtaining module, for by the three-dimensional coordinate of the plurality of photographic measurement point with The threedimensional model of this fragment-free track slab mates, and obtains the some cloud shape of described fragment-free track slab;
And the Fitting Calculation module, it is connected to described coordinate matching module, for by the some cloud of described fragment-free track slab in shape It is fitted corresponding to the measurement point set of identical faces on this threedimensional model, and calculates described fragment-free track slab size detection amount Value;
Described image processing system also includes the measurement report generation module being connected to described the Fitting Calculation module, for according to institute The geometrical relationship stating fragment-free track slab size detection amount carries out calculating generation measurement form.
Fragment-free track slab size detecting device the most according to claim 5, it is characterised in that the plurality of photographic measurement point For circle, and use the retro-reflective target or laser transmitter projects laser spots that retroreflecting material is made.
Fragment-free track slab size detecting device the most according to claim 6, it is characterised in that the plurality of coded target For circular and be uniformly laid in the surface of this fragment-free track slab, each the plurality of image photograph photographs at least four coding Index point.
CN201310747631.5A 2013-12-31 2013-12-31 Ballastless track slab dimension detection method and device CN103697813B (en)

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