CN101479567A - Method for contactlessly and dynamically recording the profile of a solid body - Google Patents
Method for contactlessly and dynamically recording the profile of a solid body Download PDFInfo
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- CN101479567A CN101479567A CNA2006800461482A CN200680046148A CN101479567A CN 101479567 A CN101479567 A CN 101479567A CN A2006800461482 A CNA2006800461482 A CN A2006800461482A CN 200680046148 A CN200680046148 A CN 200680046148A CN 101479567 A CN101479567 A CN 101479567A
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- solid
- profile
- light
- profile diagram
- image
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/12—Measuring or surveying wheel-rims
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
- G01B11/2522—Projection by scanning of the object the position of the object changing and being recorded
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a method for contactlessly and dynamically recording the profile (P) of a solid body (1). According to said invention, at least one light beam, which is generated by a laser device (2) and expanded in such a way that at least one linear light band (3) is formed is projected onto the moving surface of the solid body (1) and a light (RL) reflected by the solid body surface (1, 1a), inside an optical imaging device (5), whose optical axis is positioned at a fixed triangulation angle to the projecting direction of the laser device (2) and which is located at a fixed base distance from the laser device (2) is focussed and detected with a frequency which is higher with regard to the motion rate (v) of the solid body (1) by means of a planiform light-absorbing element (6). Afterwards, the measured values of the profile (P) are obtained from signals delivered by the light-absorbing element (6) according to the triangulation angle and the base distance (B) in a data processing device by means of trigonometric relations and by combination of correction values determined according to the motion rate (v) of the solid body (1) and said values are stored in the form of a profilogram (PG) in the data processing device, wherein the determination of an image triggering (106A, 106B, 106C), for which the signal delivered by the light-absorbing element (6) are selected in such a way that it makes it possible to extract the measured values (zB) of the profile (P), is carried out in a reception loop (100).
Description
Technical field
The present invention relates to a kind of method of non-contact dynamic detection of solid contour, special in to measure the purpose of the wearing and tearing that taken place on the solid.
Background technology
In order to measure wearing and tearing, the rubbing characteristics that takes place when utilizing so-called model measurement platform (as from Amsler, Laffon-Eichinger etc.) to come the test material sample in a friction pairing, to be used for a kind of special-purpose usually.Yet, because some parameters of influence wearing and tearing have constituted a complex set of condition, they can't be corresponding with actual conditions on the model measurement platform, when so some characteristics that will be measured are in such a way transferred to concrete application, for example transfer to than on the much bigger friction piece of the size of these samples the time, the difficulty that runs into is that these detect some tendentiousness numerical value only can be provided.Therefore it is inevitable some important application being carried out the tribology exploration on actual object, but the problem that often runs into is parts that remain to be surveyed wearing character must disassemble after certain working time, (for example) surveyed at wearing and tearing by measuring surface profile then, and this is accompanied by suitable expense usually.
Known mode by some contacts, for example, by using a contourgraph, can detect the profile of solid, just can set up the profile diagram on surface, the latter be based on a kind of method of the contacted contact pilotage of this solid and in this case measurement range one below the millimeter and, for example, can not obtain the measured value of cm range.Measuring Time under this situation is several seconds of each measurement point, and the disadvantage of this method is not to be suitable for harsh measurement environment.
Also become known for the optical means of the different contactless operation of Static Detection solid contour.These methods and relevant instrument are also included within the monograph " Bildverarbeitung und optische Me β technik " [" Flame Image Process and optical measuring technique "] of (for example) Bemd Breuckmann, Munich:Franzis ', 1993, under " three-dimensional measurement of topography measurement is learned " this term among the Chapter 6.Laser triangulation is described to one of topography measurement method under this situation, triangulation is considered to be meant a kind of measuring method that Snellius formed for geodesy first in 1615, wherein utilizes triangle relation to come to determine indirectly a measured variable undetermined from its dependent variable that records.
In laser triangulation, use a laser instrument that a luminous point is projected on the Measuring Object.Light, particularly scattered light from this object reflection are imaged onto on the light receiving element, and for example a Position-Sensitive Detector also claims PSD (Position Sensitive Device).The position, particularly height and position of the object point among the angle between the geometric relationship of optical texture and irradiation and the observed ray is used to determine to investigate by triangulation.At present, laser triangulation allows to carry out noncontacting measurement with low to the depth resolution of mu m range in far reaching several meters distance range.
Similar with those methods that illustrate in the described monograph, the new development of laser triangulation is a known method, wire light belt of the broadened one-tenth of laser beam wherein, promptly so-called smooth section.A planar detector for example, as a video camera, can be used herein to the detection reflected light.And then, on the basis of triangulation, assess.Characteristics of this method are that the profile height is about per mille to thousand/50 of this scope from 1mm up to the measurement range while resolution of 1m.Described monograph has proposed the applicability of a kind of essence that this light method of section uses under the situation of the object that moves continuously, but does not provide possible purposes and circumscribed details.Yet, be used in practice dynamically, in real time just, detect the problem that the method for a mobile solid contour runs into and be: therefore the distortion on the surface to be measured that this motion causes makes the program mode (PM) that can not adopt this classical triangulation method can not obtain the measured value consistent with true value by it.
Summary of the invention
A kind of contactless method that the purpose of this invention is to provide the solid contour of the type of describing when being used for dynamically detecting an introductory song, it allows short Measuring Time, the measurement range that comprises at least three orders of magnitude of covering, as zero point several millimeter, several millimeter and several centimetres, guarantee high measuring accuracy, and can under harsh operating conditions, use, especially for the wearing and tearing of components of assays.
This realizes by a kind of method according to the present invention, wherein at least one light beam by a laser aid generation and at least one wire light belt of broadened one-tenth is projected onto at least one zone of this solid surface, this solid is moved through this laser aid, and be focused among the imaging device from the reflected light of the surf zone of this solid, the optical axis of described imaging device becomes the angle of a fixing triangulation and described imaging device to be arranged at from fixing fundamental distance place of this laser aid with the projecting direction of this laser aid, and the light receiving element by a plane is surveyed with a high-frequency compared to the movement velocity of this solid, thereafter, obtain the measured value of this profile as a plurality of signals of a function output of this triangulation angle and this fundamental distance from this light receiving element, and these measured values are stored as a width of cloth profile diagram in this data handling system, be wherein that image triggers determine to receive in the circulation at one carries out, and this image triggering selection is used to obtain these measured values of this profile by the signal of this light receiving element output.
At this, this solid can be a rotationally symmetric body, particularly a wheel that carries out translation, rotation or preferably roll.Therefore the method according to this invention has constituted along with a wheel is used to measure its profile and by one of the conclusion that wherein draws wear extent extremely beneficial possibility through out-of-date.
Except the combination modified value definite (this advantageously allows to measure the profile that " is not blured " by this speed) according to the movement velocity of this solid, might be under described preferable case, particularly in conjunction with some definite modified values obtain the measured value of this profile so that measure this profile diagram undistortedly according to the surf zone of this solid.
Advantageously in order fully to measure the purpose of these profiles, on a plurality of zones on the not ipsilateral that a plurality of light belts is projected this solid surface at least by three laser aids of use, and described a plurality of laser aids are distributed a plurality of imaging devices, when making a plurality of profile diagrams be measured as the component profile diagram, these component profile diagrams are stored among this data handling system, and have obtained the total profile diagram of a width of cloth from them.Basic configuration at this solid is cylindrical or annular haply, and under the situation as a wheel, at least three zones that these light belts throwed can advantageously be dropped on two end faces and side of this cylinder or annulus.So this profile diagram, these component profile diagrams and/or this total profile diagram can be compared with one or more reference contours figure separately, and can determine the corresponding deviation with corresponding reference diagram, described deviation constitutes that institute takes place that of wearing and tearing measures or about the tolerance of whether still to take place to wear and tear within tolerable scope.In this case, by means of during the stress of this solid that has taken place and the correlation combiner between the determined wear extent, can also make about being further cycle of stress how long acceptable or inferring statement about of when being necessary to test again.
In addition, when this profile diagram, these component profile diagrams, this total profile diagram, corresponding reference profile diagram and/or corresponding deviation and fixing foundation of geometry amount that remains unchanged for a long period of time as a wheel rim internal diameter that does not does not wear and tear carry out with reference to the time be favourable.For example, might in this way this eroded area be expressed as a kind of stretch-out view, describe height profile by means of suitable expression means with reference to this basic value on this basis.For example, this profile diagram, these component profile diagrams, total profile diagram, corresponding reference profile diagram and/or these corresponding deviations can be carried out visual in an indicating device such as display.
In the case, this basic value can advantageously determine from the value of three measurements at least, and these measured values are by contactless and dynamically measure the solid that moves and be to measure in the mode identical with the detection of the detection of this profile diagram or these component profile diagrams similarly.For this purpose, the possibility that exists is or is that a single beam by a wire light belt of broadened one-tenth carries out at interval at the setting-up time in three moment at least to the measurement of this motion solid, perhaps these to measure by broadening respectively be that at least three light beams of a linear beam carry out simultaneously in conjunction with the setpoint distance of a plurality of surf zones of the solid that these light belts throwed.
Advantageously can use the device that digital signal is provided as light receiving element, as triggering the ccd video camera or the Position-Sensitive Detector (position sensitive apparatus) of control, as photodiode array.Will guarantee under first kind of situation this light receiving element to this light intensity sensitivity at this, and luminous flux can provide enough signals under second kind of situation.
As for laser aid according to the present invention, it is particularly advantageous that following feature has been proved to be:
-about result's high repeatability and high precision aspect: the wavelength of the light belt that is produced at 400nm in the scope of 1000nm, particularly at 650nm in the scope of 700nm;
-equally on the one hand about this: the power of laser aid arrives in the scope of 50mw 0.5;
-about the professional security of high aspect (according to the 2 class laser instruments of DIN EN 60825-1:2001-11): palp radiation (GZS) ultimate value of the light belt wavelength in the visible range and this laser aid less than 1mw-to guarantee thus laser power be higher than under the situation of 1mw will this palp radiation by suitable means ultimate value be reduced to desired value;
-about the least cost aspect (cost) of this method: use a CW (continuous wave) solid-state diode, the diode that for example comprises a kind of semiconductor material such as GaAs, AlGaAs, InGaP, GaAsSb, InP, PbSnTc or materials similar, a preferred VLD (visible laser diode), similar with its use-pattern in a laser designator, a visible light belt helps the adjustment of this laser instrument with respect to solid to be measured extraly.
Measuring condition as for the method according to this invention, following feature has been proved to be for being used to detect the profilometry advantageous particularly and/or the optimum of wearing and tearing, for profile diagram, these component profile diagrams and this total profile diagram measured respectively, might realize resolution, particularly less than 0.5mm less than 2.0mm.
The width of-this light belt: at 0.3mm in the scope of 6.5mm, particularly 0.8mm to the scope of 2.2mm in-the average operating distance (measuring distance) of the increase that might wish simultaneously, disperse the expansion that causes this light belt width, but the reduction measuring accuracy;
The length of-this light belt: at 50mm in the scope of 750mm, particularly 200mm in the scope of 400mm-corresponding to the geometrical property in the zone to be measured of this solid surface;
-triangulation angle: in 15 ° to 40 ° scope, in tangible especially 20 ° to the 30 ° scope, the angle of expansion improves measuring accuracy, but the danger that this solid surface non-uniform illumination is also arranged and shade occurs;
Fundamental distance between the mid point of a condenser lens of-this imaging device, particularly this imaging device and the optical axis of this laser aid is in 30mm arrives the scope of 450mm, particularly in 60mm arrives the scope of 270mm;
-this laser aid and/or this imaging device are to the average operating distance in the zone that light belt throwed of this solid surface: at 20mm within the scope of 650mm, particularly at 150mm within the scope of 350mm;
The translation motion speed that-this solid is possible: be lower than 3.5m/s, preferably be lower than 1.5m/s;
The angular velocity that rotatablely moves that-this solid is possible: less than 15s
-1, preferably be lower than 6s
-1Preferably invariable;
-pass through the reflected light frequency of the solid surface of this light receiving element detection: in 25Hz arrives the scope of 100kHz, particularly in 1kHZ arrives the scope of 10kHz.
As for frequency, it must be tuned to the movement velocity of this solid, a high relatively frequency reduces the influence of the speed of this solid to the distorted signals of this light receiving element.Therefore, can advantageously carry out the correlativity combination of movement velocity and reflected light look-in frequency, so that definite modified value of measuring according to this movement velocity, and described modified value can be, especially, with more proportional vector coefficients of this movement velocity and essential corresponding with the measured value of this profile diagram and/or summand.Advantageously do not need in the case the particular range of this solids movement speed and consider non-linear.
According to determined these modified values of the surf zone of this solid can be as function of the radius of this rotationally symmetric body and/or some summands and some definite vector coefficients especially, and described radius might be the basic value of the same geometry that remains unchanged for a long period of time as the reference quantity of measuring these profile diagrams.
The present invention further favourable design is included among dependent claims and the following detailed description.
Description of drawings
The present invention will describe in detail by an exemplary shown in the drawings, in the accompanying drawings:
Fig. 1 is in order to illustrate the method according to this invention at schematic diagram shown in the schematic side elevation,
Fig. 2 is in order to illustrate the method according to this invention, at further ultimate principle figure shown in the perspective schematic view,
Fig. 3 illustrates and is used for the rail vehicle wheel, as railway wheel, has used a skeleton view of an abrasion detection platform of basis and method of the present invention,
Fig. 4 illustrates the visual angle chosen from a front corresponding to Fig. 3, with respect to the details in the outside of travel direction to a wheel,
Fig. 5 illustrates a details corresponding to Fig. 3, but a visual angle choosing from behind is with respect to the inboard of direction of motion to one wheel,
Fig. 6 illustrates a synoptic diagram of the program mode (PM) when determining the basic value of a geometry that a profile diagram being measured according to the present invention can reference,
Fig. 7 and Fig. 8 illustrate some profile diagrams of measuring according to the present invention synoptic diagram and
Fig. 9 illustrates the program process of using the method according to this invention.
The reference number tabulation
1 solid
The 1a wheel
2 laser aids
3,3a, 3b, 3c, 3c1,3c2,3c3 light belt
45 lens
5 imaging devices
6 light receiving elements
7 housings
8 abrasion detection platforms
9 tracks
10 rail vehicles
90 requests from server
95 system start-ups
100 receive circulation
101 laser distance sensors
102 signal conditions
103 distance signals
104 signal evaluations
105A, 105B, 105C is used for 106A, 106B, the starter of 106C
106A, 106B, the 106C image triggers
107A, 107B, 107C be from 106A, 106B, the image array of 106C
107 image arrays from IS
The storage of 108 images
109 timers reset
Detect exit criteria for 110,111 pairs 100
112 stop image recording
113 data are sent to server
195 systems stop
The optical axis of A-A 6
The B fundamental distance
D
zThe measurement range of Z
Dz
AZ
AResolution
D
1, D
21, the end face of 1a
The f frequency
The total profile diagram of GPG
H distance 4/6 (Fig. 1)
Image among the IS 100 is selected
Kv is corresponding to v, the modified value of ω
Ko is corresponding to 3,3a, 3b, 3c, 3c1,3c2, the area/location of 3c3
Modified value
K is corresponding to N1, the coefficient of N2 and Δ t
The L operating distance
N1, N2 3c1,3c2, the distance between the 3c3
The optical axis of O-O 2
The P profile
The PG profile diagram
PG
a, PG
b, PG
cThe component profile diagram
The R radius
The RL reflected light
t
k, t
1, t
2, t
3Measure constantly
S
1, S
2, S
3Center on the point on the circumference of R
Sl
1, sl
2, sl
3For S
1, S
2, S
3Chord length
The x length coordinate
x
AThe image patch position of RL on 6
x
MaxThe maximal value of x
x
MinThe minimum value of x
x
1, x
2, x
3For S
1, S
2, S
3The measurement of length value
The y length coordinate
The z height coordinate
z
AMeasured value, 3,3a, 3b, 3c, 3c1,3c2, the incoming position of 3c3
z
Bz
AThe correction measured value
z
MaxThe maximal value of z
z
MinThe minimum value of z
z
1, z
2, z
3For S
1, S
2, S
3The measured value of height
Δ PG profile variation
The Δ t time interval
Embodiment
In the difference diagram of accompanying drawing, identical parts always are equipped with identical reference number, and therefore they only illustrate once usually under each situation.
At first shown in a two-dimensional representation among Fig. 1 about measurement target with a solid 1 of speed V motion, the method according to this invention is focused by an optical element (not shown) so that the width b of this light beam drops on a maximum detection value z by the degree of depth or profile height z from a light beam of a laser aid 2 emissions
MaxWith I measured value z
MinThe setting range of the measurement range Dz that difference produced in.This light beam is extended to form a light belt 3, shown in a three-dimensional representation among Fig. 2 in this case.
The incoming position z of this light belt on the surface of this solid 1
A, the scattered light of diffusion (reflected light RL) has formed one and has measured spot, and it also can be experienced on some directions that depart from by the determined incident direction of optical axis O-O of this laser aid 2.
If measuring spot, this passes through a suitable condenser lens 4 of an imaging device 5 now a triangulation angle
On be imaged onto on the light receiving element 6 on a plane, according to this incoming position z
ADistance on this light receiving element 6 at a minimum value x
MinWith a maximal value x
MaxBetween set up an image patch position x
A
Triangulation angle except permanent setting
Outside, be used for the method according to this invention device structure geometrical property by the optical axis A-A of the focusing optical element 4 of this imaging device 5 to one of the position (O-O fixes by its optical axis) of this laser aid 2 fixedly fundamental distance B determine.
By using triangulation relation, this incoming position z
ADistance, the surface that is to say this solid 1 can be by measured image patch position x to the distance of laser aid 2
ADetermine by following equation:
z
A＝H/(1-B/x
A) (1)
H represents the distance of the condenser lens 4 of this imaging device 5 to its light receiving element 6, as shown in fig. 1.
The relative accuracy dz of Huo Deing in this case
A/ z
AFor:
dz
A/z
A＝1/(1-x
A/B)*dx
A/x
A (2)，
The relative resolution dx of this image patch position wherein
A/ x
ADepend on the movement velocity v of this reflected light RL this solid relevant when being received, and depend on the type of signal noise and this light receiving element 6 by image receiving element 6 with a frequency f that is adopted.At this, the amount dz in the equation (2)
AConstitute an absolute value of measuring accuracy.
In order to improve resolution, by these are worth z
ACombine with a plurality of modified value Kv and obtain a plurality of final measured value z of this profile (representing by P among Fig. 1 and 2)
B, described a plurality of modified value Kv are according to the movement velocity v of this solid 1 and definite, and can be, especially, and with the more proportional vectorial coefficients of this movement velocity v and/or some summands.At this, carry out the relevant combination of this movement velocity v and the look-in frequency f of this reflected light RL so that these modified values Kv that determines to decide by movement velocity v.
By changing above-mentioned geometrical property, particularly this fundamental distance B, this triangulation angle
And/or an average operating distance of the surf zone that throwed of imaging device 5 or laser aid 2 light belt 3 to the solid 1 (among Fig. 1 by shown in this length L), advantageously might freely set this measurement range Dz and associated measuring accuracy dz by the geometrical property of suitably choosing this structure in a simple mode
A/ z
AAt this, these independent devices need not, and as shown in Figure 1, are packed by a common housing 7.Enlarge the effect that reduces measuring accuracy that has of this measurement range Dz under this situation, vice versa.
Shown in design in, SONY HCC 400 cameras are used as light receiving element 6.Because resolution depends on the size of measurement range, just depend on this measurement range Dz, this means that for a device size that is used for finishing the method according to this invention, the quantity of surveying camera directly depends on required or selected resolution.
As already described and shown in Fig. 2, only consider that so far the system of two dimension will consider so that write down the pattern of a threedimensional solid 1 on three-dimensional.That is to say, the laser beam of using a broadening is formed a light belt 3 carry out work.Used this term of the light method of section.After this reflected light RL has been surveyed by this planar shaped light receiving element 6, and in a data treating apparatus (not shown), in a PC, these measured values of this profile P are from a plurality of signals of these light receiving element 6 outputs and consider this triangulation angle
And this fundamental distance B determines, and described a plurality of measured value is stored in this data processing equipment as a width of cloth profile diagram PG.Such profile diagram PG is represented by the polygon broken line shown in the correspondence on this light receiving element 6 in the indicative icon of Fig. 2.From a plurality of profile diagrams of actual measurement in Fig. 7 and 8 shown in the dissimilar diagram.
A kind of commercially available line length LB (Fig. 2) is that 300mm and live width b (Fig. 1) are that 1.5mm, laser power are that 30mW and the linear laser device module L200 with visible ruddiness (wavelength 680nm) are used as laser aid 2, and it projects light belt 3 on a plurality of zones that are positioned at this solid 1 surface.
As above already mentioned, the typical case that Fig. 3 illustrates the method according to this invention uses, and is specifically designed to and measures wearing and tearing.This diagram is reappeared the skeleton view of an abrasion detection platform 8, and it designed to be used along with solid 1 to be measured rolls on track 9 and with translational velocity v and the wheel 1a that angular velocity omega moves through.
As can be seen, this abrasion detection platform 8 has been equipped with a plurality of light belt 3a, 3b, 3c projected and has been positioned at this solid 1 surface and goes up each side D from this diagram
1, D
2, a plurality of zones on the M three laser aids 2 measure that (also note is made PG in Fig. 7 as the component profile diagram
a, PG
bAnd PG
c) several profile diagrams PG, and determined to distribute to a plurality of imaging devices 5 of described laser aid.These component profile diagrams PG
a, PG
bAnd PG
cCan be stored in this data handling system, and total profile diagram GPG of available they acquisitions.
The wheel 1a of this rail vehicle 10 constitutes basic configuration for becoming a rotational symmetric solid 1 of a cylindrical or annular in fact, and these three zones that these light belts 3a, 3b, 3c are throwed are positioned at two end face D of this right cylinder or annulus
1, D
2On lateral surfaces M.As shown in Figure 3 and shown in the details in the Figure 4 and 5, the polygon broken line that these three light belt 3a, 3b, 3c do not need to form a sealing is measured this total profile diagram GPG.The light belt 3b that projects this lateral surfaces M does not need to be parallel to the axis of this wheel 1a yet.A corresponding deviation for axially parallel can be by obtaining these measured values z of this profile P
BIn conjunction with a plurality of modified value K that measure according to the zone of this solid surface
OCompensate.
Fig. 5 illustrates a wheel rim inner radial R who measures this wheel 1a and is used as profile diagram PG, component profile diagram PG
a, PG
b, PG
cAnd total profile diagram GPG can reference above-mentioned a plurality of possibilities of a basic value of geometry fixing, that remain unchanged for a long period of time in first, and Fig. 6 shows second.At this, this radius R is all from least three measured value z under the both of these case
1, z
2, z
3Come to determine, they by the repeatedly contactless and dynamic measurement of motion wheel 1a is determined and with detection or these component profile diagrams PG of profile diagram PG
a, PG
b, PG
cThe identical mode of detection carry out.
According to Fig. 5, forming at least three light beams of wire light belt 3c1,3c2,3c3, what this solid 1 surface that is projected in conjunction with these light belts 3c1,3c2,3c3 a plurality of interregional set respectively carries out the contactless kinetic measurement of this rolling wheel 1a simultaneously apart from N1, N2 by broadening respectively.
According to Fig. 6, at least three moment t
1, t
2, t
3Carry out contactless and dynamic measurement by broadened with a single beam that forms a wire light belt 3c in the time interval Δ t that sets to rolling wheel 1a.
Therefore these measure is to carry out in unidirectional mode, that is to say given these corresponding light belt 3c, under the condition of the identical sensing of 3c1,3c2,3c3 (same alignment), under each situation at three some S
1, S
2, S
3On, be positioned at radius and be three measured value z on one section circular arc of R
1, z
2, z
3Be measured as these S
1, S
2, S
3Ordinate value in a cartesian coordinate system.Compose to these S according to mode shown in Figure 6
1, S
2, S
3These measured values z
1, z
2, z
3Measure length for one that corresponds respectively to this wire light belt 3c or 3c1,3c2,3c3.These length measured of this wire light belt 3c or 3c1,3c2,3c3 can be changed this assignment without a doubt, and its mode is to make these measured values z
1, z
2, z
3A string sl of this circular arc is passed in representative respectively
1, sl
2, sl
3Half of length.Respectively with these measured values z
1, z
2, z
3Related a plurality of abscissa value x
1, x
2, x
3(be shown as among Fig. 6 respectively at three moment t
1, t
2, t
3The round M that occurs
1, M
2,, M
3The center to the distance of this light belt 3c) or under this first kind of situation by producing apart from N1, N2 according to these of Fig. 5, perhaps under this second kind of situation, measure t constantly by these three
1, t
2, t
3These time intervals Δ t that sets produces by these time intervals Δ t be multiply by this angular velocity omega.This angular velocity omega can or be permanent setting in this case, or is similarly determined by contactless and kinetic measurement that should rolling wheel 1a by 3 pairs of one or more light belts.When the speed of this wheel 1a, just should rotate on the one hand, and when therefore also having translation motion invariable on the other hand, make that assessment was easier.
These measured values z
1, z
2, z
3After determining, the reference radius R of this rolling wheel 1a can determine in order to following system of equations:
R
2＝X
1 2+Z
1 2 (3)
R
2＝x
2 2+z
2 2 (4)
R
2＝x
3 2+z
3 2 (5)
x
1-x
2＝k*(x
2-x
3) (6)
These variable R and x
1, x
2And x
3Represent unknown quantity separately therein.Variable k in the equation (6) is a known coefficient, corresponding to these zones on the time interval Δ t of these settings or this wheel 1a surface apart from N1, N2 and changeless time interval Δ t and equidistant apart from the preferable case of N1, N2 under value be 1.
Determined this radius R can be used as the baseline for the measured value zB of this profile height on the one hand, these measured values are measured on the lateral surfaces M of this wheel 1a, and might use this radius R to determine to go up a plurality of modified value Ko that considered by light belt 3 or zone that 3a, 3b, 3c, 3c1,3c2,3c3 threw light on according to this solid 1 surface on the other hand.The necessity of considering these modified values Ko from, for example, these strings sl among Fig. 6 in fact
1, sl
2, sl
3Limit different center angles separately, therefore produce different local configuration distortions.At this, between 180 ° under another extreme case when these central angles drop under this light belt 3c first extreme case when the circumference of the circular arc of the wheel 1a that is considered forms a undercut line 0 ° and this light belt 3c and overlap with the diameter 2R of the circular arc of the wheel 1a that is considered.Maximum chord length sl
3Comprised the maximum information relevant, and had minimum localized distortion with profile to be determined.
Because these reasons, the total profile diagram GPG that therefore works as a rolling solid 1 (being this wheel 1a in the illustrated case) shown in Figure 7 is from detecting t constantly at one
kBy two end face D
1, D
2When obtaining with three component profile diagrams measuring simultaneously on this lateral surfaces M is extremely beneficial, and the detection of the component profile diagram that these are independent is t constantly
kSelected mode be: at this detection t constantly
kA mean value z who measures
k(be z under the present case
3) from least three measured value z
1, z
2, z
3In get a maximal value, these measured values are positioned at these end faces D
1, D
2One of in radius be on the circular arc of R and respectively at continuous moment t
1, t
2, t
3Measure and correspond respectively to a string sl who passes this circular arc in unidirectional mode from the corresponding length L B of this wire light belt 3c, 3c1,3c2,3c3
1, sl
2, sl
3Half of length.Certainly, be used to choose this detection t constantly
kThe application of this criterion be not limited to three measured value z
1, z
2, z
3Given more than three measured value z
1, z
2, z
3A benchmark, if maximum half chord length sl that is measured
3Depart from this radius R littlelyr or get same value, even also might realize better result with this radius R.
Fig. 7 further illustrates corresponding profile diagram PG, component profile diagram PG
a, PG
b, PG
cAnd/or total profile diagram GPG (in this graphic displaying, is used for the greatest measurement z of this profile P with one or more reference contours figure separately
BReference contours figure BP1 and be used for the minimum measured value z of this profile P
BA reference contours figure BP2) compare, and can determine corresponding deviation delta PG with each reference contours figure BP1, BP2.In the illustrated case, these deviations occur in among the zone shown in the dot-and-dash line.These reference contours figure BP1, BP2 preferably can be the desirable sizes that can allow, but reference contours figure BP1, a BP2 also can be a plurality of measured value z from more early measurement
BA storage data recording in case each deviation delta PG provide about from before measurement since the information of the degree of wear that taken place.
Though only be the two-dimensional diagram of this profile P, wherein the measured value z of this profile P among Fig. 7
BBe represented as the polygon broken line (vector x, z) on the xsect Q of this wheel 1a, the diagram of this profile P has been described the three-dimensional feature of the method according to this invention in Fig. 8.By different gray-scale values, Fig. 8 is with these measured values z of this profile P
BBe shown as a plurality of vector x, y, z, this is the end face D by this wheel 1a that measures by above-mentioned radius R
1Stretch-out view (development) carry out.According to equation (2), resolution dz
AAbsolute value less than 0.5mm, for example at 0.4mm.Indicated and represent (shown in Fig. 7) xsect Q of wheel 1a by Q at this lines by circle institute mark, according to the component profile PG of Fig. 7
a(as listed) is present on this point.Also might use color to replace these gray-scale values shows in a suitable display in order to promote clearness.
The method according to this invention advantageously makes a profile P to detect in an extremely short detection time.Therefore, a plurality of laser aids 2 by means of the both sides of the track 9 that is arranged on rail vehicle 10 rolling processes, and be used for five rotary supports, that is to say that therefore ten wheels are a plurality of imaging devices 5 of 20 wheel 1a, can set up total profile diagram GPG of a three-dimensional separately in the time in 5 seconds.
Program process shown in Figure 9, that be used to use the method according to this invention is to be the contactless detection of a plurality of wheels (as a plurality of railway wheels) profile of a rail vehicle and custom-made especially.As mentioning, such wheel is shown as an example in Fig. 3 that the mode with reference number 1a illustrates on rail vehicle 10.
This program process specifically comprises, be used for the reception circulation 100 of the profile P of this solid 1 of detection of dynamic or 1a, it enters running status after the request 90 that is used for system start-up operation from a server, these system start-ups operate among Fig. 9 represent with a square frame of reference number 95 marks and can comprise to rail vehicle 10 start traffic lights, in light receiving element 6, be used for the image triggering a trigger activation and open laser instrument 2.
Under this situation, in this reception circulation 100, be provided with a laser distance sensor 101, it is exactly this light receiving element 6 particularly, a distance signal 103 is provided after signal condition 102 particularly, that is to say the state of having determined this solid 1,1a, for example arrive the distance of this laser instrument 2, and as the path to the first order derivative (speed) of time and under the situation of accelerated motion, in the time of suitably also as a time variation amount of this distance of second derivative (acceleration).Voltage can be characterized by the analog quantity that this laser distance sensor 101 is provided under this situation in this signal condition 102.
These original states according to determined this solid 1,1a, then at method step " signal evaluation " 104, come to determine from distance signal 103 particularly or (with reference in conjunction with the illustrated method of Fig. 5) detects constantly that at first receiving from this light receiving element 6 in this moment is that three signals exporting of three different light belt 3c1,3c2,3c3 and this are further used for obtaining these measured values z of this profile P constantly
BOr (with reference in conjunction with the illustrated method of Fig. 6) at least three moment t
1, t
2, t
3, constantly at first receiving from this light receiving element 6 at these only is that a plurality of signals of a light belt 3c output and these are further used for obtaining these measured values z of this profile P constantly
B
This means from details according to method at a light receiving element 6 (for example camera) or in three light receiving elements 6, under the effect of a plurality of starter 105A, 105B, 105C, carry out each image and trigger 106A, 106B, 106C.The a plurality of images that write down in this case can be buffered in the frame buffer at this, that is to say in preferred cycle video memory running, sequential access, for example camera.
This image triggering 106A, 106B, 106C preferably should go up from the approaching as far as possible standard of determining of the moment of these original states of carrying out this solid 1,1a according to the time and carry out in this case, because, in helping a kind of mode of signal evaluation, these these signals that constantly provide respectively are only slightly different, particularly, the distance to this laser aid 2 only has slight change.
Preferably the signal evaluation 104 of this distance signal 103 can carry out at this, particularly, can be advantageously undertaken by a so-called simple logic that is integrated among the existing data processing equipment.Be understood that to allow to dispose a kind of programmable logic device of various time-based logic sequences in this simple logic.Can be included under the title PLD (programmable logic device (PLD)) and particularly make that at these devices under the title SPLD (simple programmable logical device) user can be under the help of appropriate software (a preferred relaying ladder logic) (for example by in-system programming (ISP)), set up predetermined logic and time relationship between one or more inputs (at this distance signal 103 particularly under the present case) and the one or more output (under the present case particularly these several starter 105A, 105B, 105C) according to required mode.Therefore in order to implement the method according to this invention, might in this simple logic, stipulate a time range, in this time range, can allow image recording and preferred from desired picture quality viewpoint this also be optimum.For example, this time range can be a such scope, these modified values Ko that determines according to the surf zone of this solid 1,1a and/or be effective wherein according to these modified values Kv (preferably as the permanent value of setting, that is to say does not have mobilism) that the movement velocity v of this solid 1,1a determines.Compare with some discrete logical devices, the reduction of the reduction of hardware costs when the use of simple logic causes making circuit (P.e.c., plug-in unit, web member) and erected cost (line, combination), and cause may be compacter design.
By the withdraw from criterion of some the condition verifications shown in the square frame of reference number 110 and 111 marks as a plurality of processes in this reception circulation 100.Want verification at this (square frame 110), on the one hand, this timer whether moved above 10s and, on the other hand, all axles of this rail vehicle 10 are recorded (square frame 111).If one of these conditions satisfy, this image recording just is stopped (square frame 112).The problem of whether having moved above 10s about timer is in order to confirm whether this solid 1 or 1a have reached static.After stopping image recording 112, the view data 108 of being stored can send to server (square frame 113).Simultaneously can carry out system's operation out of service as " closing trigger ", " closing laser aid 2 " and " lighting traffic lights for this rail vehicle 10 ", these are all represented by the square frame that is marked with reference number 195.
At this, suitable hardware can be incorporated in the test board 8 so that implement according to these operations shown in the program circuit of Fig. 9 according to Fig. 3, particularly should receive circulation 100, thereby advantageously may realize a client-server loop, be positioned on this track 9 and this server is in remote position on the space this client under the situation in this loop.
The present invention is not limited to the exemplary of being showed, but covers all ways and meanses that have same effect within the meaning of the present invention.Therefore, in the application of so-called fringe projection method, there is a further possibility to come illumination utilization structureization or coding.These methods are equally based on principle of triangulation, by the projector of the luminous pattern that has computer settings corresponding to this laser aid 2 to whole solid 1 illumination.In recording process,, this luminous pattern determines this pattern thereby changing the light distribution that can generate from the image that is write down according to a specific mode.
And the one skilled in the art can come the supplementary copy invention by other favourable measure and not deviate from scope of the present invention.Therefore, the appropriate software module can be used for carrying out all arithmetical operations, as the computing of these equatioies (1) illustrated in this data processing equipment to (6).
And the present invention also is not limited to a plurality of combination of features defined in the claim 1, but can also be limited by any other required combination of disclosed on the whole a plurality of special characteristics.This means that in principle almost any independent feature of claim 1 all can be omitted and/or be replaced by at least one disclosed independent feature of other positions among the application.In this sense, claim 1 only can be understood as preliminary a trial that limits an invention.
Claims (42)
1, a kind ofly be used for contactlessly and dynamically detecting a solid (1,1a) the method for profile (P), especially in order to be determined at this solid (1,1a) go up occurring wear, produced also broadened to form at least one wire light belt (3 by a laser aid (2), 3a, 3b, 3c, 3c1,3c2, at least one light beam 3c3) is projected onto this solid (1,1a) on Biao Mian at least one zone, and this solid (1,1a) be moved through this laser aid (2), and from this solid (1,1a) light (RL) that reflects of Biao Mian this zone be focused in the imaging device (5) and with than this solid (1, movement velocity 1a) (v) high frequency (f) relies on a planar light receiving element (6) to be detected, the optical axis (A-A) of this imaging device (5) become with the projecting direction (O-O) of this laser aid (2) a fixing triangulation angle (
), and this imaging device (5) is arranged to apart from (2) fixing fundamental distances of this laser aid (B), thereafter, utilizes a data treating apparatus to concern by triangulation, from this light receiving element (6) as this triangulation angle (
) obtain the measured value (z of this profile (P) with a plurality of signals of function output of this fundamental distance (B)
B), and is a width of cloth profile diagram (PG) with these measured values in this data processing device for storage, one of them image triggers (106A, 106B, 106C) determine to receive in the circulation (100) at one carries out, and obtained these measured values (z of this profile (P) by the signal of this light receiving element (6) output for this image triggering selection
B).
2,, it is characterized in that these measured values (z of this profile (P) according to the method for claim 1
B) be in conjunction with according to this solid (1, (the v) a plurality of modified values (Kv) determined and obtain of movement velocity 1a).
3,, it is characterized in that these measured values (z of this profile (P) according to the method for claim 1 or 2
B) be in conjunction with according to this solid (1,1a) a plurality of modified values (Ko) of determining of Biao Mian this zone and acquisition.
4, according to the method for one of claim 1 to 3, it is characterized in that this solid (1,1a) carry out a kind of rotatablely moving.
5, according to the method for one of claim 1 to 4, it is characterized in that this solid (1,1a) be a rotationally symmetric body in essence, a wheel (1a) particularly, and carry out a kind of rolling movement.
6, according to the method for claim 4 or 5, it is characterized in that this rotatablely moves carries out with constant angular velocity (ω).
7, according to the method for one of claim 4 to 6, (1, the angular velocity that rotatablely moves (ω) 1a) is less than 15s to it is characterized in that this solid
-1, preferably less than 6s
-1
8, according to the method for one of claim 3 and 5 to 7, it is characterized in that (1, regional determined these modified values (Ko) on surface 1a) are a plurality of vector coefficients and/or a plurality of summands of a function of the radius (R) that is confirmed as this rotationally symmetric body according to this solid.
9,, it is characterized in that (1, (v, ω) determined these modified values (Kv) are and described movement velocity (v, ω) more proportional vector coefficients and/or a plurality of summand movement velocity 1a) according to this solid according to the method for one of claim 1 to 8.
10, according to the method for one of claim 1 to 9, it is characterized in that carrying out described movement velocity (v, ω) with a kind of correlativity combination of the look-in frequency (f) of this reflected light (RL) in case determine according to described movement velocity (v, ω) and these modified values (Kv) of determining.
11, according to the method for one of claim 1 to 10, it is characterized in that by using a plurality of light belts (3,3a, 3b, 3c, 3c1,3c2,3c3) project and be positioned at this solid (1,1a) at least three laser aids (2) on a plurality of zones on Biao Mian the not ipsilateral and a plurality of imaging devices (5) of distributing to described a plurality of laser aids are determined as a plurality of component profile diagram (PG with a plurality of profile diagrams (PG)
a, PG
b, PG
c), these component profile diagrams (PG
a, PG
b, PG
c) be stored in this data handling system, and obtain a total profile diagram (GPG) from it.
12, according to the method for claim 11, it is characterized in that at a solid (1, basic configuration 1a) is for to become under the situation of cylindrical or ring-type in fact, as a wheel (1a), and these light belts (3,3a, 3b, 3c, 3c1,3c2, at least three zones that 3c3) are projected onto are positioned at two end face (D of this right cylinder or ring bodies
1, D
2) and a lateral surfaces (M) on.
13,, it is characterized in that (1, total profile diagram (GPG) 1a) is from three component profile diagram (PG for the solid of a rolling according to the method for claim 12
a, PG
b, P
GC) obtain, these three component profile diagrams detect (t constantly at one
k) by two end face (D
1, D
2) and on this lateral surfaces (M), measure the component profile diagram (PG that these are independent simultaneously
a, PG
b, PG
c) detection (t constantly
k) selected mode be: at this detection (t constantly
k) a measured value (z measuring
k) from least three measured value (z
1, z
2, z
3) in get a maximal value, these three measured values are positioned at these end faces (D
1, D
2) one of in radius be on the circular arc of (R) and accordingly at the continuous moment (t
1, t
2, t
3) with unidirectional mode from this wire light belt (3,3a, 3b, 3c, 3c1,3c2 measures and corresponds respectively to the string (sl that passes this circular arc on corresponding length 3c3)
1, sl
2, sl
3) half of length.
14,, it is characterized in that this profile diagram (PG), these component profile diagrams (PG according to the method for one of claim 1 to 13
a, PG
b, PG
c) and/or this total profile diagram (GPG) (BP1 BP2) compares, and determines and this corresponding reference profile diagram (BP1, BP2) corresponding deviation (Δ PG) with one or more reference contours figure separately.
15,, it is characterized in that this profile diagram (PG), these component profile diagrams (PG according to the method for one of claim 1 to 14
a, PG
b, PG
c), this total profile diagram (GPG), this corresponding reference profile diagram (BP1, BP2) and/or these corresponding deviations (Δ PG) and the fixing basic value of the geometry that remains unchanged for a long period of time, relevant as a unworn wheel rim internal diameter (2*R).
16, according to the method for claim 15, it is characterized in that this basic value determines from least three measured values, these measured values are by contactlessly and dynamically measuring this mobile solid (1,1a) measure, and with detection or these component profile diagrams (PG of this profile diagram (PG)
a, PG
b, PG
c) the identical mode of detection carry out.
17,, it is characterized in that (1, contactless and dynamic measurement 1a) is at least three moment (t for solid to this motion according to the method for claim 16
1, t
2, t
3) rely in time interval (Δ t) of setting broadened form a wire light belt (3,3a, 3b, 3c, 3c1,3c2, single beam 3c3) carries out.
18, according to the method for claim 16, it is characterized in that relying on broadened respectively form a wire light belt (3,3a, 3b, 3c, 3c1,3c2, at least three light beams 3c3) in conjunction with these light belts (3,3a, 3b, 3c, 3c1,3c2,3c3) (1,1a) (N1 N2) comes simultaneously this motion solid to be carried out this contactless and kinetic measurement the setpoint distance in Biao Mian a plurality of zones the solid that is projected.
19, according to the method for one of claim 15 to 18, it is characterized in that the radius (R) that this basic value is a rolling rotationally symmetric body, it is determined in order to following equation:
R
2＝x
1 2+z
1 2 (1)
R
2＝x
2 2+z
2 2 (2)
R
2＝x
3 2+z
3 2 (3)
x
1-x
2＝k*(x
2-x
3) (4)，
z
1, z
2And z
3Be three measured values, they are positioned at radius on the circular arc of (R), measure in unidirectional mode and corresponding to the wire light belt (3 of the ordinate (z) of a cartesian coordinate system respectively, 3a, 3b, 3c, 3c1,3c2, length 3c3), and they correspond respectively to the string (sl that passes this circular arc
1, sl
2, sl
3) half of length, x
1, x
2And x
3Be the abscissa value (x) that corresponds respectively to these measured values, and k be corresponding to setting-up time at interval (Δ t) or this solid (1,1a) (N1, coefficient N2) of the distance between Biao Mian these zones.
20,, it is characterized in that this profile diagram (PG), these component profile diagrams (PG according to the method for one of claim 1 to 19
a, PG
b, PG
c), this total profile diagram (GPG), this corresponding reference profile diagram (BP1, BP2) and/or these corresponding deviations (Δ PG) in an indicating device such as display by visual.
21, according to the method for one of claim 1 to 20, it is characterized in that providing the device of digital signal, as triggering the CCD camera of control, be used as this light receiving element (6).
22, according to the method for one of claim 1 to 21, it is characterized in that Position-Sensitive Detector (position sensitive apparatus), as photodiode array, be used as this light receiving element (6).
23, according to the method for one of claim 1 to 22, (3,3a, 3b, 3c, 3c1,3c2, light 3c3) have the wavelength in 400nm arrives the 1000nm scope, particularly the wavelength in 650nm arrives the scope of 700nm to it is characterized in that this light belt.
24, according to the method for one of claim 1 to 23, (3,3a, 3b, 3c, 3c1,3c2, light 3c3) have the wavelength in the visible-range, and the ultimate value of the accessible radiation (GZS) of this laser aid (2) is less than 1mW to it is characterized in that this light belt.
25,, it is characterized in that the power of this laser aid (2) arrives in the scope of 50mW 0.5 according to the method for one of claim 1 to 24.
26, according to the method for one of claim 1 to 25, it is characterized in that this laser aid (2) comprises a cw (continuous wave) solid-state diode, for example, diode by as made such as GaAs, AlGaAs, InGaP, GaAsSb, InP, PbSnTe is preferably a VLD (visible laser diode).
27, according to the method for one of claim 1 to 26, it is characterized in that this light belt (3,3a, 3b, 3c, 3c1,3c2,3c3) have 0.3mm in the 6.5mm scope particularly at the width (b) of 0.8mm in the 2.2mm scope.
28, according to the method for one of claim 1 to 27, it is characterized in that this light belt (3,3a, 3b, 3c, 3c1,3c2,3c3) have 50mm in the 750mm scope particularly in the length (LB) of 200mm in the 400mm scope.
29, according to the method for one of claim 1 to 28, it is characterized in that this triangulation angle (
) have the value in 15 ° to 40 ° scopes, preferably a value in 20 ° to 30 ° scopes.
30, according to the method for one of claim 1 to 29, it is characterized in that relying on this light receiving element (6) to survey from this solid (1, the frequency (f) that the light of surface reflection 1a) (RL) is adopted is in 25Hz arrives the scope of 100kHz, preferably in 1kHz arrives the scope of 10kHz.
31, according to the method for one of claim 1 to 30, the speed that it is characterized in that the translation motion of this solid is (v) less than 3.5m/s, preferably less than 1.5m/s.
32, according to the method for one of claim 1 to 31, it is characterized in that this laser aid (2) and/or this imaging device (5) are to this solid (1,1a) this light belt (3 of surface, 3a, 3b, 3c, 3c1,3c2.3c3) an average operating distance (L) in the zone of being throwed at 20mm in the scope of 650mm, particularly at 150mm in the scope of 350mm.
33, according to the method for one of claim 1 to 32, it is characterized in that this imaging device (5), the mid point of a condenser lens (4) of this imaging device (5) particularly, and the fundamental distance (B) between the optical axis of this laser aid (O-O) is in 30mm arrives the scope of 450mm, particularly in 60mm arrives the scope of 270mm.
34,, it is characterized in that this profile diagram (PG), these component profile diagrams (PG according to the method for one of claim 1 to 33
a, PG
b, PG
c), this total profile diagram (GPG), this corresponding reference profile diagram (BP1, BP2) and/or deviation (Δ PG) that should correspondence based on one less than 2.0mm preferably less than the resolution (dz of 0.5mm
A).
35,, it is characterized in that a hardware element is integrated among the test board (8) that is positioned on the rail (9) so that realize this reception circulation (100) according to the method for claim 34.
36, according to the method for claim 34 or 35, it is characterized in that this reception circulation (100) is on having a space in the client in a client-server loop of server of far-end realizes, come a plurality of start-up operations (95) of start-up system by request (90) from this server, as be that motor vehicles (10) are lighted traffic lights, one of activation is used for image and triggers (106A, 106B, trigger 106C) and/or open this laser aid (2).
37, according to the method for one of claim 34 to 36, it is characterized in that in this reception circulation (100) at signal condition (102) afterwards by a laser distance sensor (101,6) provide a signal, a distance signal (103) particularly, obtain to be used for this image by a signal evaluation (104) from this distance signal and trigger (106A, 106B, a plurality of starter (105A 106C), 105B, 105C).
38, according to the described method of claim 37, it is characterized in that this signal evaluation (104) relies on a programmable logic device (PLD) (PLD) that allows to make up different time-based logic sequence, set up predetermined this distance signal (103) and be used for this image triggering (106A, 106B, these starters (105A 106C), 105B, getting in touch with temporal in logic between 105C).
39, according to the method for one of claim 34 to 38, it is characterized in that this image triggers (106A, 106B, 106C) a plurality of image array (107A are provided, 107B, 107C), described image array (107A, 107B 107C) is buffered in the video memory of preferred cycle operation on this light receiving element (6), sequential access.
40,, it is characterized in that representing these measured values (z of this profile (P) according to the method for claim 39
B) the image selected (IS) of an image array (107) be that (107A, 107B 107C) make, and particularly (1, speed 1a) (make by a function v) as this solid from these image arrays.
41,, it is characterized in that obtaining these measured values (z of this profile (P) according to the method for one of claim 36 to 40
B) afterwards, particularly one of image recording stops (112) afterwards, these measured values (z
B) view data (108) of particularly being stored is sent out (113) to this server, preferably with to the distance of this laser aid (2), (measurement point 3c3) and/or this image trigger (106A for 3c1,3c2 according to an employed light belt, 106B, the moment (t 106C)
1, t
2, t
3) some relevant values of correspondence send together.
42,, it is characterized in that this reception circulation (100) comprises the criterion that some condition verifications (110,111) of linking to each other with the scheduled measurement of a timer and/or certain number of times are used as withdrawing from according to the method for one of claim 34 to 41.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/256,284 US7602506B2 (en) | 2003-03-25 | 2005-10-06 | Method for contactlessly and dynamically detecting the profile of a solid body |
| US11/256,284 | 2005-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101479567A true CN101479567A (en) | 2009-07-08 |
Family
ID=37495886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800461482A Pending CN101479567A (en) | 2005-10-06 | 2006-10-05 | Method for contactlessly and dynamically recording the profile of a solid body |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1931942A1 (en) |
| JP (1) | JP2010506135A (en) |
| CN (1) | CN101479567A (en) |
| ES (1) | ES2307467T1 (en) |
| RU (1) | RU2008117999A (en) |
| WO (1) | WO2007039641A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6768551B2 (en) * | 2001-10-17 | 2004-07-27 | International Electronic Machines Corp. | Contactless wheel measurement system and method |
| DE10313191A1 (en) * | 2003-03-25 | 2004-10-07 | Gutehoffnungshütte Radsatz Gmbh | Method for contactless, dynamic detection of the profile of a solid |
| DE102004045850A1 (en) * | 2004-09-20 | 2006-03-23 | Gutehoffnungshütte Radsatz Gmbh | System and method for forwarding a, preferably dynamically, in particular for the purpose of a determination of occurred wear, detected profile of a solid |
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2006
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- 2006-10-05 EP EP06807017A patent/EP1931942A1/en not_active Withdrawn
- 2006-10-05 RU RU2008117999/28A patent/RU2008117999A/en not_active Application Discontinuation
- 2006-10-05 CN CNA2006800461482A patent/CN101479567A/en active Pending
- 2006-10-05 JP JP2008534021A patent/JP2010506135A/en not_active Withdrawn
- 2006-10-05 WO PCT/EP2006/067113 patent/WO2007039641A1/en active Application Filing
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| US8806169B1 (en) | 2013-02-18 | 2014-08-12 | Huawei Technologies Co., Ltd. | Memory management method, memory management apparatus and NUMA system |
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| CN106922171A (en) * | 2014-10-30 | 2017-07-04 | 庞巴迪运输有限公司 | The method of the configuration state of the unit mechanically loaded for determination |
| CN104648440A (en) * | 2015-02-13 | 2015-05-27 | 北京交通大学 | Online measurement system and method for geometric parameters of wheel set |
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| CN110456423A (en) * | 2018-05-07 | 2019-11-15 | 特鲁普机械奥地利有限公司及两合公司 | Cutting clast for bending unit identifies |
| CN110456423B (en) * | 2018-05-07 | 2024-03-19 | 特鲁普机械奥地利有限公司及两合公司 | Cutting chip identification for bending units |
| CN113624140A (en) * | 2020-07-27 | 2021-11-09 | 北京镭格之光测量技术有限公司 | Online measuring device and method for wheel cake parameters of railway vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1931942A1 (en) | 2008-06-18 |
| WO2007039641A1 (en) | 2007-04-12 |
| ES2307467T1 (en) | 2008-12-01 |
| RU2008117999A (en) | 2009-11-20 |
| JP2010506135A (en) | 2010-02-25 |
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