CN1867727A - Method for processing signals obtained by scanning planar textile structures - Google Patents
Method for processing signals obtained by scanning planar textile structures Download PDFInfo
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- CN1867727A CN1867727A CNA200480029986XA CN200480029986A CN1867727A CN 1867727 A CN1867727 A CN 1867727A CN A200480029986X A CNA200480029986X A CN A200480029986XA CN 200480029986 A CN200480029986 A CN 200480029986A CN 1867727 A CN1867727 A CN 1867727A
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- fault
- plane configuration
- configuration articles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H3/00—Inspecting textile materials
- D06H3/08—Inspecting textile materials by photo-electric or television means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
- G01N21/8983—Irregularities in textured or patterned surfaces, e.g. textiles, wood for testing textile webs, i.e. woven material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
- G01N33/367—Fabric or woven textiles
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to a method for processing signals that are obtained by scanning planar textile structures (1). The aim of the invention is to create a method that allows for a very differentiated evaluation of the defects (4, 5, 6) in a planar structure while leading to specific actions based on the identified defects. Said aim is achieved by first determining value ranges for parameter values, which define defect categories in the planar structure, whereupon the distribution of the defects in the planar structure is determined for defect categories in the planar structure, and an action is taken in relation to the planar structure according to the determined category and the distribution of the defects in the planar structure.
Description
Technical field
The present invention relates to the Signal Processing method obtained by scanning planar textile structures.
Background technology
For example EP 1100989 discloses a kind of method that is used for judging the fault of planar textile structures, utilize this method, the contrast during according to the length of fault with no fault plane configuration articles comparison is determined the permissibility of the fault in the plane configuration articles.The result of this moment is that fault is long more and contrast is big more, shows that more relevant fault is undesirable.Then, in principle,, take identical measure at being considered to fault and undesirable or unacceptable each fault.That is to say that the consequence of the undesirable fault in the planar textile structures is, if possible, remove fault, defective goods perhaps can not be sold at all and therefore be considered as to the perhaps relevant portion of plane configuration articles price reduction.
The shortcoming of this open method for example is, is allowing fault and is not allowing will mark between the fault a clear and definite boundary line.This boundary line allows the people according to selecting as the economic benefit of plane configuration articles and the balance of this conflicting influence of quality.For guaranteeing economic benefit, should select this boundary line like this, reduce the fault that causes defective goods as far as possible.For ensuring the quality of products, all faults all obtain identification as fault and remove as far as possible, and perhaps this plane configuration articles must belong to defective goods.It is a kind of indifference and the compromise mode that is difficult to accomplish that this conflicting influence causes allowing fault and not allowing the selection of fault.
Summary of the invention
Therefore, purpose of the present invention is to provide a kind of method as described in claims, and this method can be carried out very detail analysis and take measure targetedly according to the fault of being discerned the fault in the plane configuration articles.
This purpose is achieved thus, derives for example numerical value of definite parameters such as image contrast, intensity, length, direction the signal that produces during promptly from scanning planar textile structures.Predesignate the limiting value that is used for determining the plane configuration articles fault for the numerical value of parameter.Be fault, just alleged parameter is determined number range, and they determine the type of fault in the plane configuration articles.For each type of fault in the plane configuration articles determine fault in plane configuration articles distribution and the situation of fault type of in depending on plane configuration articles, being measured and distribution under plane configuration articles is taken measures when needing, for example as the transmission device of fault counting, plane configuration articles shut down, trigger report to the police, fault is ignored or make mark etc.
Particularly be by the advantage that the present invention reached, by the measure of fault and distribution thereof being taked depend on that to a great extent fault is specifically used actual influence to plane configuration articles, therefore no matter be that the economic benefit or the quality of plane configuration articles of plane configuration articles manufacturing all can be improved.Therefore the judgement to fault can very fine match with all possible situation.
Description of drawings
The present invention is described in detail by embodiment and accompanying drawing below.Wherein:
Fig. 1 and 2 illustrates each part of this method; And
Fig. 3 illustrates the device that is applicable to this method of enforcement.
The specific embodiment
Fig. 1 illustrates the coordinate system with three axle x, y and z, and wherein, x axle and y axle relate to the extension of the plane configuration articles of being studied.For example therefore the x axle can vertically with plane configuration articles be represented the vertical of plane configuration articles with the y axle.The z axle is for example distributed to one or more parameters such as intensity as plane configuration articles, contrast, color.Adopt 100 marks to be in an x and a zone above the common x-y plane of launching of y axle.The numerical value level of a parameter of these zone 100 explanations.Therefore the distance between x-y plane and the zone 100 is suitable for this numerical value apart from the explanation relevant parameter.At known row that forms during by this plane configuration articles of sensor scan itself.Several here row adopt the n-n+4 mark.Examine the center 101,102 that these row are connected the picture point (pixel) 103,104 that is on the lines 105 here, this means, the numerical value that illustrates picture point of lines 105-112 to simplify.Adopt the sequence of values of 113 mark row n+4 or lines 100.Particular offset by lines 106-111 as can be seen, these lines illustrate a kind of particularity by the measured numerical value of bar 106-111 along the line in the hills modes in the zone 110.This particularity also can be called fault 114.For example can be distributed on weft yarn or the warp thread direction at a up n of fabric.
Also can find out the known sequence of values 113 from Fig. 1 in Fig. 2, it is made up of continuous scan values 115,116 etc.These scan values are marked on the y axle, for example can generation time or the numerical value of stroke along this.Can mark numerical value as electrical quantitys such as electric current, voltages along the z axle, they are derived by measured intensity, contrast or color.From sequence of values 113, can derive the numerical value of different parameters.Particularly it is contemplated that the length of signal segment 118 or duration 117 or the parameter 119 that from scan values, derives as this numerical value, as with the proportional contrast of the skew of sequence of values 113, intensity etc.It is straight 120,121 also will to predesignate the limit to parameter 117 and 119, is used for determining that the plane constitutes the fault in the article.Here limiting value 120 relates to the direct measured value of parameter 119, and limiting value 121 then for example relates to the parameter 117 that is derived by sequence of values 113, here for example is length or duration by the limiting value 121 monitored signal sections of predesignating 118.
A part of as can be seen planar textile structures 1 in Fig. 3, it here constitute as fabric width and its vertically on motion, for example situation on from a bobbin after-combustion to another bobbin when on loom, producing or when perching, arrangement.The front of plane configuration articles 1 or back have scanning means 2, and it is with known mode plane configuration articles 1 of passing through of optical scanner for example itself.Plane configuration articles 1 has transmission device 3, and it for example can be by the roller that is subjected to transmission or roller to forming.Different examples that as can be seen may fault on plane configuration articles 1 are for example as fault group 4, fault 5a, the 5b, 5c, 5d and the plane fault 6 that periodically occur.Along plane configuration articles a vertical measurement mechanism 7 is set also, it for example is made up of the device of active wheel with run-length encoding device or optics work.But vertically measurement mechanism 7 also can be integrated with scanning means 2.
For handling simulation or data signal from scanning means 2, has different memory 8,9,11, counter 10, computer 12,13,14, input-output unit 15 and executing agency 16, they are connected with 28 by connecting line 17,18,19,20,21,22,23,24,25,26,27 to each other and with miscellaneous part.
Operation principle of the present invention is as follows:
What preferably predesignated before beginning plane of scanning motion configuration articles 1 is what fault be not fault with.Therefore at first must select to show the parameter of fault feature and be necessary for selected parameter and predesignate the limiting value that shows that the fault on the plane configuration articles exceeds.In addition, also be necessary for the limiting value that surpasses selected parameter values and predesignate the number range of determining the fault type.If also must predesignate fault then allows the data that distribute and surpasses the measure that will take of predesignating.This point can be undertaken by I/O unit 15 manual inputs.But wherein a part also can fixedly be predesignated, just these numerical value stationary storage in memory.
During the plane configuration articles 1 by transmission device 3 motions passes through from scanning means 2 sides, for example (Fig. 1) is corresponding scans with line mode and row n, n+1, n+2, n+3, n+4 etc., wherein, be that every row produces a sequence of values, for example as the sequence of values 113 of row n+4.These sequence of values are by for example forming as (Fig. 2) scan values such as scan values 115,116.These scan values 115,116 etc. have skew or for example can be used as current value or the numerical value of voltage value measurement.But these scan values 115,116 etc. also can be this physical quantity of image brightness, contrast and intensity for example under present environment.They depend on use which kind of device or which kind of measuring principle when plane of scanning motion configuration articles 1.We are with this tittle and also have the amount that therefrom derives for example the length or the duration of image signal section 118 are called parameter.Fault 4,5,6 (Fig. 3) is characterised in that these parameters and numerical value thereof on the plane configuration articles 1.Therefore scan values 115,116 etc. is transported to memory 8 by connecting line 17.Memory 8 for example is the FIFO memory, the image section of its recomposition plane configuration articles 1 from the numerical value of continuous acquisition, and as shown in Figure 1, the inside also shows fault by the numerical value of its parameter.Store limiting value and all data in the memory 9, these data can be used for fault is counted definite fault type, and this fault type belongs to the fault type group that also will introduce in detail the back.Computer 12 obtains current parameter value and obtains the top limiting value that will measure the parameter current value by connecting line 19 by connecting line 18.Compare by parameter value that will exist on the computer and the limiting value of predesignating, computer can be included into each fault a type and will illustrate that by connecting line 21 corresponding data of institute's type is transported to counter 10.Here the fault of each type all the full-length counting by the plane configuration articles 1 predesignated by the operator to determine whether to exist the group.The length that is scanned is transported to computer 12 and 13 by connecting line 23 by length-measuring appliance 7.Computer 13 for example calculates the fault quantity of each length and this quantity is offered computer 14 by connecting line 24 every kind of fault type.This computer is predesignated from memory 11 by connecting line 25, and this memory is the fault of every type of storage according to the permission quantity of plane configuration articles 1 length computation.This permission quantity is transported to memory 11 and is stored in the inside from I/O unit 15 by connecting line 29.Whether whether computer 14 from from the present quantity of connecting line 24 with measure executing agency 16 quantity from predesignating of connecting line 25 and need to take measures by connecting line 26 promptings, only perhaps need by connecting line 28 information to be outputed to I/O unit.Introduce the mode of the information that can adopt or measure below and how to determine type.
Therefore can predesignate the kind or the fault type of fault by I/O unit 15 according to the present invention, the latter is depended on the mode that planar textile structures 1 exists and is predesignated specially.For a kind of fabric for example it is contemplated that following fault type:
-short warp thread fault
-in through yarn defect
-long through yarn defect
-short weft yarn fault
-middle weft yarn fault
-long weft yarn fault
-streak
-selvedge fault
-segmentation stuffer weft fault
-facet fault
-midplane fault
-big plane fault
But the operator also can oneself determine the respective value scope of fault type and input parameter.
Can be following fault type concerning knitted fabric:
-broken hole
-light filling bar
-thick section
-spot
All these faults be suitable for are determined the numerical value of correlation type parameter, for example as:
-position
-size
-mean flow rate, intensity or contrast,
They import and list in selected type by I/O unit 15 equally.
To temporarily be stored in numerical value that this parameter of being used for determining type in parameter in the memory 8 and the memory 9 predesignates in computer 12 compares and distributes type like this.For example can predesignate the length of fault on weft direction as parameter, wherein, as the numerical example of predesignating such as 0.5cm, 3cm and 10cm.If the measurement length of weft yarn fault is greater than 10cm now, so it is included into the type of " long weft yarn fault ", if its length be in 3 and 10cm between, so it is included into " middle weft yarn fault " if type and its length are between 0.5cm and the 3cm, so it is included into " short weft yarn fault " type.
With the additional type that also should predesignate or determine other modes of the type of above-mentioned first mode of determining by the fault characteristic, it is characterized in that the distribution of fault on plane configuration articles 1.Example as these other mode types comprises:
-can not discern single fault or the fault of operator that rule occurs from occurring for the first time just can indicating,
-with the periodicity fault that clocklike occurs at interval and
-by being limited in the fault group that local agglomeration fault is formed, they are made up of only still acceptable single fault itself.For example import minimum fault number by I/O unit 15 for this reason, be considered as periodically from these several regular faults that occur for the periodicity fault.
For the fault group also imports the fault numbers by I/O unit 15.This fault number relates to the minimum number of plane configuration articles 1 each full-length here, can be considered as the fault group from these several faults.Can select the number range of single parameter separately for determining type and distributing.
According to the affiliated number range of passing through prior fixing input with by the suitable fault type of importing first mode of determining, the device of Fig. 1 is measured the type by other definite modes of the mensuration distribution of fault.This device is measured the measure that will take again from two types.For this reason in distribution and the therefrom definite measure of computer 14 according to the character and the fault of the routine processes fault of predesignating.Possible example as measure comprises:
-counting
-trigger and report to the police
-transmission device is shut down
-ignore
-make mark.
Computer 14 can be transported to I/O unit by connecting line 28 with the fault of counting and be used for showing.This point also is applicable to warning.If transmission device 3 needs to shut down, so corresponding signal is transported to executing agency 16 and is transported to transmission device 3 by connecting line 27 by connecting line 26.
The operator can be the parameter input value by I/O unit 15, and these numerical value are predesignated the first mode type of main appearance for any plane configuration articles of imagining for the operator.But the input of parameter also can directly be carried out by deriving in the signal of self-scanning device 2 always to replace, and method is for example measured value to be outputed to I/O unit 15 and this measured value is distributed to a type by I/O unit 15 by connecting line 20.
Parts shown in the accompanying drawing such as memory, computer etc. can be used as the functional block of data processor and understand.But the single fixation kit that they also can be used as signal processing circuit constitutes.
List above-mentioned method in the subordinate list that reproduces below equally.In this regard, only mention a parameter of determining by number range in this example.But equally also can list other parameters of determining by other numerical value or scope.The fault type is all the time by determining by the number range of best a plurality of parameters and each parameter is combined.
| The fault type | The parameter values scope | Measure | ||
| Single | The group | Cycle | ||
| It is big in the long segmentation stuffer weft of the long weft yarn fault of yarn defect brachymedial brachymedial streak selvedge fault plane fault is little | 0.5-3cm 3-10cm＞10cm 0.5-3cm 3-10cm＞10cm weft yarn fault＞3cm is confined to 3/4 fabric width on the edge＞3 weft yarn weft direction Φ＜3cm Φ 3-10cm Φ＞10cm | -? +? □? ? -? +? ? +? ? ? +? ? ? □? ? ? +? +? +? ? +? | ！? +? □? ? +? +? ? ！? ? ? +? ? ? □? ? ? □? ！? ！? ? ！? | □? ！? □? ? ！? ！? ? ！? ? ? ！? ? ? □? ? ? □? □? □? ? □? |
Measure: +=counting,!=output alarm,=transmission device is shut down,-=ignore
Claims (4)
1. the Signal Processing method of being obtained by scanning planar textile structures (1) is characterized in that, derives the numerical value of pre-selection parameter (117,119) from signal,
For the numerical value of parameter is predesignated the limiting value (120,121) of the fault that is used for determining plane configuration articles,
Determine number range for the numerical value of parameter, they determine the type of the fault in this plane configuration articles,
For the fault type in this plane configuration articles determine fault in this plane configuration articles distribution and
Take the measure relevant under the fault type of in depending on this plane configuration articles, being measured and the situation of distribution with this plane configuration articles.
2. by the described method of claim 1; it is characterized in that; as the measure to this plane configuration articles, selection measure from the group that comprises following content: fault counting, fault are ignored, the transmission device of plane configuration articles is shut down, fault is made mark and trigger warning.
3. by the described method of claim 1, it is characterized in that,, from the group that comprises following content, determine the fault type: through yarn defect, weft yarn fault, surface-defect, selvedge fault as the fault type.
4. by the described method of claim 1, it is characterized in that, as parameter, derived parameter from the group that comprises following content at least: length, width, contrast, intensity, diameter, direction etc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1763/03 | 2003-10-16 | ||
| CH17632003 | 2003-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1867727A true CN1867727A (en) | 2006-11-22 |
Family
ID=34427752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200480029986XA Pending CN1867727A (en) | 2003-10-16 | 2004-10-07 | Method for processing signals obtained by scanning planar textile structures |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1678370A1 (en) |
| JP (1) | JP2007522349A (en) |
| CN (1) | CN1867727A (en) |
| WO (1) | WO2005035862A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157314A (en) * | 2015-12-23 | 2016-11-23 | 河海大学 | A kind of real-time fault diagnosis method of paper making equipment |
| CN106918600A (en) * | 2017-04-07 | 2017-07-04 | 江苏博虏智能科技有限公司 | A kind of web surface defects detection and labeling method based on machine vision |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3729804A1 (en) * | 1987-09-05 | 1989-03-16 | Menschner Maschf Johannes | METHOD FOR THE AUTOMATIC DETECTION OF ERRORS IN MOVING TRACKS |
| US5006722A (en) * | 1990-03-02 | 1991-04-09 | Intec Corp. | Flaw annunciator with a controllable display means for an automatic inspection system |
| DE4129126A1 (en) * | 1991-09-02 | 1993-03-04 | Memminger Iro Gmbh | METHOD FOR DETECTING ERRORS IN A TEXTILE TRACK |
| ATE190722T1 (en) * | 1995-05-10 | 2000-04-15 | Mahlo Gmbh & Co Kg | METHOD AND DEVICE FOR DETECTING DEFECTS IN TEXTILE WEAVES AND THE LIKE |
| JP2001516909A (en) * | 1997-09-15 | 2001-10-02 | ツエルヴエーゲル・ルーヴア・アクチエンゲゼルシヤフト | How to evaluate data from fibrous textures |
-
2004
- 2004-10-07 EP EP04761953A patent/EP1678370A1/en not_active Withdrawn
- 2004-10-07 JP JP2006538626A patent/JP2007522349A/en active Pending
- 2004-10-07 WO PCT/CH2004/000613 patent/WO2005035862A1/en active Application Filing
- 2004-10-07 CN CNA200480029986XA patent/CN1867727A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157314A (en) * | 2015-12-23 | 2016-11-23 | 河海大学 | A kind of real-time fault diagnosis method of paper making equipment |
| CN106157314B (en) * | 2015-12-23 | 2018-12-14 | 河海大学 | A kind of real-time fault diagnosis method of paper making equipment |
| CN106918600A (en) * | 2017-04-07 | 2017-07-04 | 江苏博虏智能科技有限公司 | A kind of web surface defects detection and labeling method based on machine vision |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005035862A1 (en) | 2005-04-21 |
| JP2007522349A (en) | 2007-08-09 |
| EP1678370A1 (en) | 2006-07-12 |
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Open date: 20061122 |