CN110132201A - A kind of parametrization linear transducer layer difference compensation method - Google Patents
A kind of parametrization linear transducer layer difference compensation method Download PDFInfo
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- CN110132201A CN110132201A CN201910411991.5A CN201910411991A CN110132201A CN 110132201 A CN110132201 A CN 110132201A CN 201910411991 A CN201910411991 A CN 201910411991A CN 110132201 A CN110132201 A CN 110132201A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/045—Correction of measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention discloses a kind of parametrization linear transducer layer difference compensation method, the long coil of wire is surveyed on reel, the one end for surveying long equipment telescoping mechanism is fixed in one end, long line is surveyed with the elongation and contraction of telescoping mechanism, it is drawn out and withdraws, survey long line drives reel to rotate during pull-out, linear transducer gets the variation of amount of spin in real time, according to the parameter of the computation model of storage inside, it obtains enclosing number in real time, and the continuous parameter for relatively enclosing number and computation model in real time, obtain the real-time number of plies, to obtain the perimeter of different layers, lead to every layer of circle number and every layer of wire length that perimeter is pulled out or withdrawn, add up every layer of wire length and obtains measurement length.The present invention obtains measurement length using the length for adding up each layer of disk line, significantly reduces loss of significance, keeps linear measure longimetry more accurate.
Description
Technical field
The present invention relates to linear transducer technical fields, and in particular to a kind of parametrization linear transducer layer difference supplement side
Method.
Background technique
Linear transducer is to refer to measured equipment as defined in impression, and can be converted to available letter according to certain rule
The device or device of number output, the sensor is by corresponding directly to measured sensing element and generate that available signal exports turns
Element is changed, and corresponding electronic circuit is formed.Linear transducer is suitable for the linear measure longimetry of telescoping mechanism, such as telescopic boom
Crane, telescopic lorry-mounted crane, telescopic high-altitude operation vehicle, high-altitude fire fighting truck and other there is flexible jib lubbing mechanism
A engineering machinery.
Currently used linear transducer is by the linear transducer of volume momentum transformation length output, calculation master
If the acquisition to amount of spin, during calculating amount of spin is converted to Length Quantity, there is loss of significance for length computation,
To keep linear measure longimetry precision lower, the data error measured is big.
Summary of the invention
Above-mentioned background technique there are aiming at the problem that, the present invention provides a kind of parametrization linear transducer layer difference compensation side
Method can reduce the loss of significance of length computation, improve linear measure longimetry essence during calculating amount of spin is converted to Length Quantity
Degree reduces data error.
To achieve the goals above, the present invention provides a kind of parametrization linear transducer layer difference compensation method, surveys the long coil of wire
On reel, the one end for surveying long equipment telescoping mechanism is fixed in one end, surveys long line with the elongation and contraction of telescoping mechanism, is drawn
It out and withdraws, surveys long line and reel is driven to rotate during pull-out, linear transducer obtains the variation of amount of spin in real time, and leads to
The parametric technique for crossing the computation model of storage inside is judged to enclose number in real time, and continuous relatively more real-time circle number and computation model
Parameter, obtain the real-time number of plies, to obtain the perimeter of different layers, pulled out or withdrawn by every layer of circle number and perimeter
Every layer of wire length, add up every layer of wire length and obtain measurement length, the specific method is as follows:
Step 1: establishing the parameter of length computation model in host computer, which includes: each layer of perimeter Cm, it is every
One layer of circle number nmAnd corresponding number of stories m；The specific method is as follows:
1) the disk line overall length of linear transducer on reel is determined
The disk line overall length of each linear transducer is a definite value, and it is total to be defined as L；
2) each layer on reel of perimeter C is determinedm, formula is as follows:
Wherein, m is the number of plies, and Dj is the diameter of reel, and Dx is the diameter of line；
3) the circle number n of every layer of disk line on reel is determinedm, circle number rounding, the specific method is as follows:
1. working as m=1, the perimeter C of first layer is obtained by formula (1)1, n1=w/Dx,
Wherein, w is reel width；
2. judging LAlwaysWith C1×n1Size: if LAlways> C1×n1, continue next layer of disk line, executes step 3., otherwise, n1
=LAlways/C1, execute step 7.；
LAlways> C1×n1
3. working as m=2, the perimeter C of the second layer is obtained by formula (1)2If 1. step obtains n1Fractional part be less than
0.5, n2=n1- 1, otherwise, n2=n1,
4. judging LAlwaysWith C1×n1+C2×n2Size: if LAlways> C1×n1+C2×n2, continue next layer of disk line, execute
Step 5., otherwise, n2=(LAlways-n1×C1)/C2, execute step 7.；
5. every disk is one layer full, the numerical value of m increases by 1, and the perimeter C of this layer is obtained by formula (1)m, judge whether m is even
Number, if so, the layer circle number is equal with second layer circle number, otherwise, the layer circle number is equal with first layer circle number；
6. judging LAlwaysWith C1*n1+..+Cm*nmSize: if LAlways> C1*n1+..+Cm*nm, return step is 5.；If LAlways
< C1*n1+..+Cm*nm, illustrate linear transducer disk line overall length LAlwaysIt has been used up, if reel outermost layer is that non-disk expires layer, the layer
Disk coil number are as follows: nm=[LAlways-(C1*n1+..+Cm-1*nm-1)]/Cm, in order to keep primary data more accurate, non-disk expires layer disk line
It encloses number and retains a decimal；
7. by each layer of perimeter Cm, circle number nmAnd number of stories m passes to linear transducer；
Step 2: linear transducer receives and stores the parameter of host computer transmitting, when calculating, by obtaining rotation in real time
The variation of amount is judged to enclose number in real time according to the parameter of the computation model of storage inside, and continuous relatively more real-time circle number and meter
The parameter for calculating model, obtains the real-time number of plies, to obtain the perimeter of different layers, is pulled out by every layer of circle number and perimeter
Or every layer of the wire length withdrawn, add up every layer of wire length and obtains measurement length.
Compared with prior art, the present invention is in host computer by establishing the parameter of disk line computation model, and by disk line mould
The parameter of type sends linear transducer to, and before measuring, linear transducer is in original state, that is, surveys long line all on reel,
Length by length sensor learns the circle number and each layer of perimeter of the number of plies, each layer according to the parameter of the computation model of storage, with
Line constantly pull out, the circle number of top layer can gradually decrease, if reduction circle number be greater than top layer disk coil number, this
When enter next layer of circle number and calculate, and obtain the variation of amount of spin in real time, it is constantly relatively real to obtain circle number in real time
The parameter of hour circle number and computation model judges the number of plies locating for circle number in real time, in the different numbers of plies growing in week using the corresponding number of plies
To every layer of the wire length for pulling out or withdrawing, and constantly add up each layer of wire length, to obtain measurement length.The present invention uses
Add up each layer of wire length and obtain measurement length, significantly reduces loss of significance, keep linear measure longimetry more accurate.
Detailed description of the invention
Fig. 1 be present invention determine that on reel every layer circle number flow chart.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of parametrization linear transducer layer difference compensation method of the present invention, surveys the long coil of wire on reel, survey is fixed in one end
One end of long equipment telescoping mechanism surveys long line with the elongation and contraction of telescoping mechanism, is drawn out and withdraws, surveys long line and pulling out
During drive reel rotation, linear transducer obtains the variation of amount of spin, and the computation model for passing through storage inside in real time
Parameter, judge to enclose number in real time, and the continuous relatively parameter of circle number and computation model in real time, obtain the real-time number of plies, from
And the perimeter of different layers is obtained, every layer of the wire length for being pulled out or being withdrawn by every layer of circle number and perimeter adds up every layer
Wire length obtains measurement length, and the specific method is as follows:
Step 1: establishing the parameter of length computation model in host computer, which includes: each layer of perimeter Cm, it is every
One layer of circle number nmAnd corresponding number of stories m；The specific method is as follows:
1) determine the disk line overall length of linear transducer on reel (except the length in reserve of front end)
The disk line overall length of each linear transducer is a definite value, and it is total to be defined as L；
2) each layer on reel of perimeter C is determinedm, formula is as follows:
Wherein, m is the number of plies, and Dj is the diameter of reel, and Dx is the diameter of line；
3) the circle number n of every layer of disk line on reel is determinedm, circle number rounding, the specific method is as follows:
1. working as m=1, the perimeter C of first layer is obtained by formula (1)1, n1=w/Dx,
Wherein, w is reel width；
2. judging LAlwaysWith C1×n1Size: if LAlways> C1×n1, continue next layer of disk line, executes step 3., otherwise, n1
=LAlways/C1, execute step 7.；
LAlways> C1×n1
3. working as m=2, the perimeter C of the second layer is obtained by formula (1)2If 1. step obtains n1Fractional part be less than
0.5, n2=n1- 1, otherwise, n2=n1,
4. judging LAlwaysWith C1×n1+C2×n2Size: if LAlways> C1×n1+C2×n2, continue next layer of disk line, execute
Step 5., otherwise, n2=(LAlways-n1×C1)/C2, execute step 7.；
5. every disk is one layer full, the numerical value of m increases by 1, and the perimeter C of this layer is obtained by formula (1)m, judge whether m is even
Number, if so, the layer circle number is equal with second layer circle number, otherwise, the layer circle number is equal with first layer circle number；
6. judging LAlwaysWith C1*n1+..+Cm*nmSize: if LAlways> C1*n1+..+Cm*nm, return step is 5.；If LAlways
< C1*n1+..+Cm*nm, illustrate linear transducer disk line overall length LAlwaysIt has been used up, if reel outermost layer is that non-disk expires layer, the layer
Disk coil number are as follows: nm=[LAlways-(C1*n1+..+Cm-1*nm-1)]/Cm, in order to keep primary data more accurate, non-disk expires layer disk line
It encloses number and retains a decimal；
7. by each layer of perimeter Cm, circle number nmAnd number of stories m passes to linear transducer by CAN bus；
Step 2: linear transducer receives and stores the parameter of host computer transmitting, when calculating, by obtaining rotation in real time
The variation of amount is judged to enclose number in real time according to the parameter of the computation model of storage inside, and continuous relatively more real-time circle number and meter
The parameter for calculating model, obtains the real-time number of plies, to obtain the perimeter of different layers, is pulled out by every layer of circle number and perimeter
Or every layer of the wire length withdrawn, add up every layer of wire length and obtains measurement length.
The case where the case where having obtained outer disk line by step 1 linear transducer, this disk line, is as linear transducer
The parameter of computation model.The parameter of computation model is stored in linear transducer: the number of plies, each layer of circle number and perimeter are (i.e. every
The length of one layer of each circle).According to the total length L of linear transducerAlwaysThe original state for obtaining linear transducer (surveys long line all
Disk is on reel), can be obtained by original state should calculate one week length under the different numbers of plies using different layers of perimeters
Degree variation.
During actual measurement, survey long equipment telescoping mechanism it is protruding or withdraw, survey long line constantly from reel
Upper pull-out, the process of pull-out will drive reel rotation, and reel drives internal drive mechanism, drive the magnet rotors of the inside, length
Sensor identifies the rotation of magnet by Hall sensor, obtains the amount of spin of practical reel in real time.With surveying, long line is continuous
It pulling out, outermost circle number can gradually decrease, if the circle number of reduction is greater than outermost disk coil number, linear transducer root
According to the parameter of the computation model of storage, is calculated into next layer of circle number, from the rotation situation of record, obtain enclosing number in real time, and
Real-time circle number is compared with the parameter of computation model constantly, obtains the real-time number of plies, to learn which each circle uses
A perimeter obtains every layer of wire length by every layer of circle number and perimeter, and accumulative every layer of the wire length for pulling out or withdrawing obtains pull-out
Or the length of the long line of survey withdrawn completes the conversion by amount of spin to length to obtain measurement length.
For example: such as survey long line overall length LAlways: 38500mm, reel width w:90mm, coil diameters Dj:280mm, line
Diameter Dx:4.5mm.
The parameter of computation model is obtained according to the method for step 1 are as follows:
From inside to outside, first layer, perimeter: 893.78mm encloses number: 20 circles
The second layer, perimeter: 918.27mm encloses number: 19 circles
Third layer, perimeter: 942.76mm encloses number: 3.4 circles
Above-mentioned parameter is sent to linear transducer and stored and is used for angle conversion length computation, before measurement, is surveyed at long line
In original state, except leading portion length in reserve whole disk is on reel, according to the parameter of the computation model of storage, linear transducer is logical
Cross original state can be obtained should be calculated using different layers of perimeters under the different numbers of plies one week length variation.On reel
It is protruding with long equipment telescoping mechanism is surveyed to survey long line, and constantly from the outermost layer of reel (i.e. third in the parameter of computation model
Layer) it pulls out, reel is rotated with the pull-out for surveying long line, and the circle number of third layer can gradually decrease, when the circle number of reduction is greater than third
When the disk coil number of layer, the circle number into the second layer is calculated, and so on, if stop bracing wire, linear transducer obtains practical
It pulls out to enclose number to be 20 circles, by the parameter of computation model it is found that 1-3.4 circle is third layer, 3.5-22.5 circle is the second layer,
22.6-42.6 circle be first layer, it can be seen from the above, third layer is all drawn out, the second layer is drawn out 16.6 circles, then at this time by
The long line overall length of the survey of pull-out are as follows:
C3*n3+C2*n2=942.76*3.4+918.27*16.6=18448.666mm, therefore, measurement length is
18448.666mm。
Claims (2)
1. a kind of parametrization linear transducer layer difference compensation method, surveys the long coil of wire on reel, one end, which is fixed on, to be surveyed long equipment and stretches
One end of contracting mechanism surveys long line with the elongation and contraction of telescoping mechanism, is drawn out or withdraws, which is characterized in that surveys long line and exist
Reel rotation is driven during pull-out, linear transducer obtains the variation of amount of spin, and the calculating for passing through storage inside in real time
The parametric technique of model is judged to enclose number in real time, and the continuous parameter for relatively enclosing number and computation model in real time, obtains in real time
The number of plies, to obtain the perimeter of different layers, every layer of the wire length for being pulled out or being withdrawn by every layer of circle number and perimeter adds up
Every layer of wire length obtains measurement length, and the specific method is as follows:
Step 1: establishing the parameter of length computation model in host computer, which includes: each layer of perimeter Cm, each layer
Enclose number nmAnd corresponding number of stories m；The specific method is as follows:
1) the disk line overall length of linear transducer on reel is determined
The disk line overall length of each linear transducer is a definite value, and it is total to be defined as L；
2) each layer on reel of perimeter C is determinedm, formula is as follows:
Wherein, m is the number of plies, and Dj is the diameter of reel, and Dx is the diameter for surveying long line；
3) the circle number n of every layer of disk line on reel is determinedm, circle number rounding, the specific method is as follows:
1. working as m=1, the perimeter C of first layer is obtained by formula (1)1, n1=w/Dx,
Wherein, w is reel width；
2. judging LAlwaysWith C1×n1Size: if LAlways> C1×n1, continue next layer of disk line, executes step 3., otherwise, n1=
LAlways/C1, execute step 7.；
LAlways> C1×n1
3. working as m=2, the perimeter C of the second layer is obtained by formula (1)2If 1. step obtains n1Fractional part less than 0.5,
n2=n1- 1, otherwise, n2=n1,
4. judging LAlwaysWith C1×n1+C2×n2Size: if LAlways> C1×n1+C2×n2, continue next layer of disk line, execute step
5. otherwise, n2=(LAlways-n1×C1)/C2, execute step 7.；
5. every disk is one layer full, the numerical value of m increases by 1, and the perimeter C of this layer is obtained by formula (1)m, judge whether m is even number, if
It is that then the layer circle number is equal with second layer circle number, otherwise, the layer circle number is equal with first layer circle number；
6. judging LAlwaysWith C1*n1+..+Cm*nmSize: if LAlways> C1*n1+..+Cm*nm, return step is 5.；If LAlways< C1*
n1+..+Cm*nm, illustrate linear transducer disk line overall length LAlwaysIt has been used up, if reel outermost layer is that non-disk expires layer, this layer of disk coil
Number are as follows: nm=[LAlways-(C1*n1+..+Cm-1*nm-1)]/Cm；
7. by each layer of perimeter Cm, circle number nmAnd number of stories m passes to linear transducer；
Step 2: linear transducer receives and stores the parameter of host computer transmitting, when calculating, by obtaining amount of spin in real time
Variation, according to the parameter of the computation model of storage inside, judges to enclose number in real time, and constantly relatively encloses number in real time and calculate mould
The parameter of type obtains the real-time number of plies, to obtain the perimeter of different layers, is pulled out or is received by every layer of circle number and perimeter
Every layer of the wire length returned adds up every layer of wire length and obtains measurement length.
2. a kind of parametrization linear transducer layer difference compensation method according to claim 1, which is characterized in that non-disk expires layer
Disk coil number retains a decimal.
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| CN201910411991.5A CN110132201B (en) | 2019-05-17 | 2019-05-17 | Layer difference compensation method for parametric length sensor |
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|---|---|---|---|
| CN201910411991.5A CN110132201B (en) | 2019-05-17 | 2019-05-17 | Layer difference compensation method for parametric length sensor |
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ID=67574916
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Cited By (1)
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| CN110132201B (en) | 2021-07-30 |
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