CN107091612A - A kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation - Google Patents
A kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation Download PDFInfo
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- CN107091612A CN107091612A CN201710356004.7A CN201710356004A CN107091612A CN 107091612 A CN107091612 A CN 107091612A CN 201710356004 A CN201710356004 A CN 201710356004A CN 107091612 A CN107091612 A CN 107091612A
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
The invention discloses a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation, including roller-way, two laser triangular distance measuring apparatus and survey wide Centralized Controller using FPGA as the slab of core, two laser triangular distance measuring apparatus are arranged on roller-way both sides, clock frequency division module is respectively to range data parsing module, width of plate slab computing module, liquid crystal driving module, D/A conversion drive modules, the communication modules of RS 485 are unidirectionally connected, range data parsing module to width of plate slab computing module is unidirectionally connected, width of plate slab computing module is respectively to liquid crystal driving module, D/A conversion drive modules, the communication modules of RS 485 are unidirectionally connected.The present invention has the features such as non-cpntact measurement, precision height, fast response time, strong antijamming capability, in-site installation facilitate.
Description
Technical field
The present invention relates to a kind of device that the detection of high speed dynamic width is realized to motion slab, belong to optical computing equipment neck
Domain, particularly a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation.
Background technology
In metallurgical industry hot rolling mill, width of plate slab is to influence the key factor of hot-strip product quality.If slab is wide
Degree is less than predetermined value, can cause follow-up belt steel product mass defect；If slab is wide, raw material can be caused to be lost, or even card
Just, the catastrophe failure such as device damage, therefore width of plate slab measurement is to modernize an important parameter in steel mill's production.
Authorization Notice No. " controls ferrite stainless to be given in the B of CN 102847901 document in a kind of continuous casting
The method of plate slab width ", the B of grant number CN 102233415 give " ferrite stainless steel base width in continuous casting
Establishing method ", studies the influence that the change of component element in different heat of molten steel is brought to width of plate slab, by changing some ginsengs
Count to control width of plate slab.These patents are to adjust from metallurgical production process angle, control width of plate slab, are realized pair
The real-time measurement of width of plate slab.
Authorization Notice No. for the B of CN 103909100 document in give " a kind of self-operated measuring unit of width of plate slab and
Method ", proposition detects width of plate slab using hydraulic cylinder and magnetic scale；Grant number CN 102581040 B give a kind of " slab
Width detection system and detection method ", width of plate slab is detected by using fixed-width pressure machine entrance jig.These patents are all
Using contact type measurement mode, because site environment is severe, the slab that detector is up to hundreds of degrees Celsius with temperature for a long time is contacted,
Easily abrasion, produces larger error, reduces measurement accuracy.
To be given in the B of CN 102553940 document, " it is wide that one kind application stokehold width gage carries out slab to Authorization Notice No.
Spend the method for control ", the B of grant number CN 102716913 give " warm-rolling stainless steel wedge shape slab width control system side
Method ", these patents survey wide flow angle elaborates how to realize width of plate slab control from overall, but how real be not directed to width gage
It is existing, and survey wide speed relatively slowly (100ms), illustrate which employs contact type measurement or time reflex formula laser measurement scheme, it is difficult
Wide requirement is surveyed to fully meet modernization steel mill slab at a high speed.
Hot rolling is proposed in many documents and surveys wide design, paper title is as follows：
Chen Duo hot rolling rough rolling plate blanks width control system studies [J] communication power supply technologies, 2015,32 (3):129-130.
Application [J] the bao steel technologies of Zhang Xiaochun .CCD width gages in hot rolled strip, 2015,33 (4):73-77.
These papers theoretically have studied width of plate slab Controlling model, propose to pass through binocular vision, optical imaging concept
The measurement to steel plate, strip width is realized, width gage is arranged on above roller-way at about 2m, and equipment installs complicated, in high temperature, water
Under vapour, dust condition of work, width gage maintaining requires high, and measurement accuracy and stability are difficult to ensure that.And the weight of slab
Amount, heat radiation are the decades of times of steel plate, thus install above roller-way the slab of CCD width gages survey wide scheme be can not be steady for a long time
Determine reliability service.
The content of the invention
For problems of the prior art, the invention provides a kind of measurement accuracy height, system response time are fast, anti-
Interference performance is strong, in-site installation is convenient, solve well the wear problem that is caused using the contact type measurement scheme such as magnetic scale with
And the live interference problem of CCD width gages is installed above roller-way, it is adaptable to the base of metallurgical industry hot rolling mill slab production process
In FPGA and the width of plate slab device for dynamically detecting of laser triangulation.
The purpose of the present invention is achieved through the following technical solutions.
A kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation, including roller-way, two laser three
Apomecometer and wide Centralized Controller is surveyed using FPGA as the slab of core, two laser triangular distance measuring apparatus are arranged on roller-way two
Side, the slab survey wide Centralized Controller include clock frequency division module, range data parsing module, width of plate slab computing module,
Liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules, the clock frequency division module is respectively to apart from number
According to parsing module, width of plate slab computing module, liquid crystal driving module, D/A conversion drive modules, RS-485 communication module lists
To connection, the range data parsing module to width of plate slab computing module is unidirectionally connected, the width of plate slab computing module point
Do not connected unidirectionally to liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules.
Further, the clock frequency division module is used to the 50M clocks of input producing into 5 frequency-dividing clock 10MHz and 10
Frequency-dividing clock 5MHz, the output end CLKA of the clock frequency division module is connected to two range data parsing modules and width of plate slab meter
Calculate the input end of clock of module, another output terminal of clock CLKB connection liquid crystal driving moulds of the clock frequency division module
Block, D/A conversion drive modules, the work clock input of RS-485 communication modules.
Further, the range data parsing module is used for according to the 10MHz clock CLKA from clock frequency division module,
Synchronous triggering the work clock SSIStartA and SSIStartB of two laser triangular distance measuring apparatus are produced, makes two laser triangulation surveys
Distance meter synchro measure from slab with a distance from, the high-speed serial data SSIDataA and SSIDataB received is parsed, it is defeated
The parallel range data LA [15..0] that goes out between laser triangular distance measuring apparatus and slab, LB [15..0].
Further, the width of plate slab computing module receives once distance using CLKA as synchronous working clock every 1ms
Data LA [15..0], LB [15..0], width of plate slab is calculated according to Width Formula of Rib Knitted Fabric W=D-LA-LB, and wherein D is two laser
Fixed range between range of triangle instrument, W is width of plate slab.
Further, the laser triangular distance measuring apparatus includes laser, plus lens, receiving lens, line array CCD driving
Plate, FPGA control panels, integrated machine support, the laser send beam of laser, testee are irradiated to through plus lens
On, a hot spot is formed, the hot spot is scattered on testee surface, and a portion scattered light exists by receiving lens
It is imaged in line array CCD driving plate, the light envelope signal that the line array CCD driving plate is produced gives FPGA control panels.
Further, the laser is semiconductor laser.
Further, the semiconductor laser is the violet semiconductor laser that wavelength is 405nm.
Further, the semiconductor laser is provided with the laser diode with PD.
Further, wavelength 405nm narrow band pass filters are provided with before the line array CCD driving plate.
Compared to prior art, the advantage of the invention is that：The present invention uses non-cpntact measurement scheme, roller-way both sides laser
The distance between range of triangle instrument synchro measure and slab；Slab surveys wide Centralized Controller using FPGA as core, passes through ranging number
According to width of plate slab is calculated, steel mill's PLC system is given by width data remote transmission, so as to realize that slab produces closed-loop control；It is man-machine
Interface uses 7 cun of TFT liquid crystal displays and touch-screen, and interface is clear, easy to use.
Therefore, the present invention proposes a kind of high speed non-contact plate blank width measuring apparatus, tool from hardware detection angle
There is the features such as non-cpntact measurement, precision height, fast response time, strong antijamming capability, in-site installation facilitate, it is adaptable to metallurgical industry
Hot rolling mill slab production process.
Brief description of the drawings
Fig. 1 is overall work schematic diagram of the present invention；
Fig. 2 is the structural representation that slab surveys wide Centralized Controller FPGA；
Fig. 3 is the structural representation apart from data resolution module in Fig. 2；
Fig. 4 is the wave simulation figure of range data parsing module.
Embodiment
With reference to Figure of description and specific embodiment, the present invention is described in detail.
As shown in figure 1, a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation, including roller-way,
Two laser triangular distance measuring apparatus and wide Centralized Controller is surveyed using FPGA as the slab of core, the slab using FPGA as core is surveyed
The laser triangular distance measuring apparatus of wide Centralized Controller control roller-way both sides is synchronously detected, realizes the igh-speed wire-rod production line of mass data,
System response time 1ms, can be applied to the severe industrial environments such as metallurgical industry hot rolling mill.Two laser triangular distance measuring apparatus peace
Mounted in roller-way both sides, measure motion the distance between slab, by between slab and left and right sides laser triangular distance measuring apparatus away from
Wide Centralized Controller is surveyed from the slab being sent to installed in control room, width of plate slab, feedback control front end slab are calculated by it
Production equipment.The final calculating of width of plate slab is to survey wide Centralized Controller by slab to realize, being being capable of real-time response reception laser
The high speed range data of range of triangle instrument output, Centralized Controller is realized at the high speed signal of mass data using FPGA as core
Reason.
As shown in Fig. 2 the slab, which surveys wide Centralized Controller, includes clock frequency division module, range data parsing module, plate
Base width calculation module, liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules, the clock division mould
Block respectively to range data parsing module, width of plate slab computing module, liquid crystal driving module, D/A conversion drive modules,
RS-485 communication modules are unidirectionally connected, and the range data parsing module to width of plate slab computing module is unidirectionally connected, the plate
Base width calculation module is unidirectionally connected to liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules respectively.
The laser triangular distance measuring apparatus includes the band PD laser diodes violet semiconductor laser that wavelength is 405nm, converged
Poly- lens, receiving lens, line array CCD driving plate, FPGA control panels, integrated machine support, the laser send a branch of sharp
Light, is irradiated on testee through plus lens, forms a hot spot, and the hot spot is scattered on testee surface, its
Middle a part of scattered light is imaged by receiving lens in line array CCD driving plate, the light envelope that the line array CCD driving plate is produced
Signal gives FPGA control panels.Wavelength 405nm narrow band pass filters are provided with before the line array CCD driving plate.Laser triangular distance measuring apparatus
Light source works are in isoperibol, and four high-resolution linear array CCDs work simultaneously extends finding range, can be to more than 1000 degrees Celsius
High temperature slab ranging, finding range reaches 10m, and range accuracy is 0.34mm, response time 1ms.
When slab start on roller-way run, into after laser triangular distance measuring apparatus detection range, rangefinder in real time detection with
The distance between slab, two rangefinders send range data LA, LB to Centralized Controller, and communication frequency is 1KHz.Concentrate
It is design core that controller, which is based on FPGA, receives ranging data, supercomputing width of plate slab at a high speed simultaneously in hardware.Two
The distance between rangefinder D is fixed, therefore width of plate slab W is calculated according to formula below.
W=D-LA-LB
To ensure measurement accuracy, after laser triangular distance measuring apparatus installation, parameter mark can be carried out using fixed width slab
Fixed, final slab surveys wide precision up to 0.68mm.
The final calculating of width of plate slab is to survey wide Centralized Controller by slab to realize, being being capable of real-time response reception laser three
The high speed range data of apomecometer output, Centralized Controller realizes the igh-speed wire-rod production line of mass data using FPGA as core.
The acp chip FPGA that slab of the present invention surveys wide Centralized Controller uses VHDL in Quartus IDEs
Description, FPGA built-in function by clock frequency division module, range data parsing module, width of plate slab as shown in Fig. 2 calculate mould
Block, liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules composition.Wherein：
The major function of clock frequency division module is input 50M clocks, produces 5 frequency-dividing clock 10MHz and 10 frequency-dividing clocks
5MHz.Active crystal oscillators of the input clock CLK50M of clock frequency division module from 50M, output terminal of clock CLKA is connected to two distances
The input end of clock of data resolution module and width of plate slab computing module.Clock frequency division module works according to 50M crystal oscillators rising edge,
Often there is a rising edge, three count bus add one, count bus is reset after being added to 4, needed for count bus highest order is exactly
The clock CLKA wanted.
CLKA=CLK50M/5=10MHz
Another output terminal of clock CLKB of clock frequency division module be liquid crystal driving module, D/A conversion drive modules,
The work clock of RS-485 communication modules, production method is similar with CLKA.
CLKB=CLK50M/10=5MHz
The effect of range data parsing module is, according to the 10MHz clock CLKA from clock frequency division module, to produce two and swash
Synchronous triggering the work clock SSIStartA and SSIStartB of light range of triangle instrument, make two rangefinder synchro measures from slab
Distance, the high-speed serial data SSIDataA and SSIDataB received is parsed, output rangefinder and slab between
Parallel range data LA [15..0], LB [15..0].
The effect of width of plate slab computing module is 10MHz clock CLKA of the basis from clock frequency division module, and from two
The parallel range data LA [15..0] of individual range data parsing module, LB [15..0], carry out high-speed computation, calculate slab wide
Spend WData [15..0].
WData [15..0]=D [15..0]-LA [15..0]-LB [15..0]
D [15..0] is the distance between two laser triangular distance measuring apparatus in above formula.
Width of plate slab computing module receives a range data LA using CLKA as synchronous working clock every 1ms
[15..0], LB [15..0], width of plate slab is calculated according to formula.
Liquid crystal driving module is input clock CLKB of the basis from clock frequency division module, and from width of plate slab
The width data WData [15..0] of computing module, export the control signal DB [15..0] of TFT liquid crystal, LCDCS, LCDRST,
LCDWR, LCDRD, width of plate slab is shown on liquid crystal.
D/A conversion drive modules are input clock CLKB of the basis from clock frequency division module, and from width of plate slab
The width data WData [15..0] of computing module, output can drive clock DACLK, the data DAData of D/A conversion chips
With latch signal DALatch, width of plate slab is realized into long-distance transmissions by the industrial current standards of 4-20mA, into steel mill PLC
Control system.
RS-485 communication modules are by width of plate slab remote transmission, and steel mill's PLC control system communication in digital form.
In the present apparatus, slab is surveyed in wide Centralized Controller fpga chip apart from data resolution module as shown in figure 3, by going here and there simultaneously
Modular converter, synchronous code judge module, range data counting module, conditional decoding module, latch signal generation module, apart from number
Constituted according to latch module.Wherein：
The major function of serioparallel exchange module is according to the clock CLK10M from clock frequency division module, to being surveyed from triangle
Distance meter high-speed serial data SSIDataA carries out eight serioparallel exchanges, eight parallel-by-bit bus SerParData [7..0] of output and survey
Distance meter triggering starts clock SSIStartA.Serioparallel exchange module works according to CLK10M rising edges, a rising edge often occurs,
The parallel bus SerParData lowest orders of [7..0] are given by SSIDataA, while being circulated using for by SerParData
The 8 bits of [7..0] byte move to left one, realize serioparallel exchange function.
The major function of synchronous code judge module is the first dielectric code for judging laser triangular distance measuring apparatus output high-speed data,
The input clock CLK10M of synchronous code judge module comes from clock frequency division module, parallel data input SerParData [7..0]
From serioparallel exchange module, the output signal StartFlagA of synchronous code judge module terminates place's output instantaneously in synchronous code 0x53
High level.
The course of work of synchronous code judge module is described as follows：Judge SerParData in clock CLK10M falling edges
Whether [7..0] is equal to synchronous code 0x53, if, StartFlagA output low levels, if equal, StartFlagA outputs are high
Level, illustrates that range data occurs.
The major function of range data counting module is it is determined that being started counting up after synchronous code, so that it is determined that rangefinder is defeated
The position of valid data in the high-speed serial data SSIDataA gone out.The input signal of range data counting module is to come from clock
The clock CLK10M of frequency division module, and come the burst pulse StartFlagA of self-synchronizing code judge module, range data count module
Block output signal is five count bus SSICLKCount [4..0].
The course of work of range data counting module is described as follows：Using CLK10M as clock, StartFlagA believes to reset
Number, design stops the counter of pattern 25, produces count bus SSICLKCount [4..0], count value adds up since 0, is added to
Count and stop after 24.
The major function of conditional decoding module is it is determined that in the high-speed serial data SSIDataA of rangefinder output effectively
After Data Position, the valid data for representing distance between rangefinder and slab are extracted.The input signal of conditional decoding module is
Clock CLK10M from the clock frequency division module and data SSIDataA from rangefinder, and from range data count module
The count bus SSICLKCount [4..0] of block, the output signal of conditional decoding module is the parallel code SSIParA of sixteen bit
[15..0]。
Conditional decoding module is stable to ensure, using synchronous circuit, data are adjudicated in clock CLK10M rising edges
SSIDataA, the course of work is described as follows：
As SSICLKCount [4..0]=0, SSIParA (15)=SSIDataA (parallel code highest order)；
As SSICLKCount [4..0]=1, SSIParA (14)=SSIDataA；
As SSICLKCount [4..0]=2, SSIParA (13)=SSIDataA；
By that analogy,
As SSICLKCount [4..0]=15, SSIParA (0)=SSIDataA (parallel code lowest order)；
The parallel code SSIParA [15..0] of sixteen bit of generation means that the distance between rangefinder and slab.But from Fig. 4
Time stimulatiom can be seen that has transfer process, parallel code SSIParA [15..0] due to extracting data according to count bus value
Also it is being continually changing, therefore is being latched suitable at the time of, is mainly being realized by follow-up latch module.
The major function of latch signal generation module is to produce latch signal in range data finish time.Latch signal is given birth to
Input signal into module is the clock CLK10M from clock frequency division module, and the counting from range data counting module
Bus SSICLKCount [4..0], the output signal of latch signal generation module is SSILatch.
The course of work of latch signal generation module is described as follows：Judge count bus in clock CLK10M rising edges
SSICLKCount [4..0] numerical value, when it is 15, SSILatch exports instantaneous high level.
The major function of range data latch module is will to be continually changing parallel code SSIParA [15..0] when suitable
Carve and latch, produce the distance between correct rangefinder and slab data.The input signal of range data latch module is to come from
The parallel code SSIParA [15..0] of sixteen bit of conditional decoding module, and the latch signal from latch signal generation module
SSILatch, the output signal of range data latch module is the parallel range data LA of sixteen bit between rangefinder and slab
[15..0]。
The course of work of range data latch module is described as follows：In clock SSILatch rising edges, sixteen bit is latched
Device brings into operation.
LA [15..0]=SSIParA [15..0]
LA [15..0] is exactly the distance between a rangefinder and slab, and LB [15..0] is opposite side distance, generation side
Formula is similar.
Fig. 4 is each involved signal in the wave simulation figure of range data parsing module, Fig. 3, and ripple is used in Fig. 4
Shape is clearly showed that.In Fig. 4, the data SSIDataA of rangefinder output is by 25 circulations, and data are " 01,010,011 0
0001010000000011 ", first eight bits are synchronous code " 01010011 ", are converted to hexadecimal 0x53, a following redundancy
Code 0, last sixteen bit " 0001010000000011 " is exactly the distance between current rangefinder and slab, is converted into decimal number
For 5123, the last valid data of LA [15..0] are also 5123 in oscillogram, it can be seen that range data parsing module is analyzed and processed
The high-speed serial data of laser triangular distance measuring apparatus output is completely correct.
The main survey by two laser triangular distance measuring apparatus and using FPGA as core of width of plate slab device for dynamically detecting is wide to concentrate
Controller is constituted, good in the severe industrial environment application effect such as metallurgical industry hot rolling mill.
Present embodiment uses non-cpntact measurement scheme, roller-way both sides laser triangular distance measuring apparatus synchro measure and slab
The distance between；Slab surveys wide Centralized Controller using FPGA as core, width of plate slab is calculated by ranging data, by width data
Remote transmission gives steel mill's PLC system, so as to realize that slab produces closed-loop control；Man-machine interface is using 7 cun of TFT liquid crystal displays and touches
Screen is touched, interface is clear, easy to use.
Therefore, the present invention proposes a kind of high speed non-contact plate blank width measuring apparatus, tool from hardware detection angle
There is the features such as non-cpntact measurement, precision height, fast response time, strong antijamming capability, in-site installation facilitate, solve makes well
The wear problem that is caused with the contact type measurement scheme such as magnetic scale and the scene interference of CCD width gages is installed above roller-way asked
Topic, it is adaptable to metallurgical industry hot rolling mill slab production process.
Claims (9)
1. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation, including roller-way, two laser triangulations
Rangefinder and survey wide Centralized Controller using FPGA as the slab of core, it is characterised in that two laser triangular distance measuring apparatus are installed
In roller-way both sides, the slab, which surveys wide Centralized Controller, includes clock frequency division module, range data parsing module, width of plate slab meter
Module, liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules are calculated, the clock frequency division module is respectively extremely
Range data parsing module, width of plate slab computing module, liquid crystal driving module, D/A conversion drive modules, RS-485 communications
Module is unidirectionally connected, and the range data parsing module to width of plate slab computing module is unidirectionally connected, and the width of plate slab is calculated
Module is unidirectionally connected to liquid crystal driving module, D/A conversion drive modules, RS-485 communication modules respectively.
2. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 1, its
It is characterised by that the clock frequency division module is used to the 50M clocks of input producing into 5 frequency-dividing clock 10MHz and 10 frequency-dividing clocks
5MHz, the output end CLKA of the clock frequency division module are connected to two range data parsing modules and width of plate slab computing module
Input end of clock, another output terminal of clock CLKB connection liquid crystal drivings module of the clock frequency division module, D/A conversions
The work clock input of drive module, RS-485 communication modules.
3. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 2, its
It is characterised by that the range data parsing module is used for according to the 10MHz clock CLKA from clock frequency division module, generation two
Synchronous triggering the work clock SSIStartA and SSIStartB of laser triangular distance measuring apparatus, make two laser triangular distance measuring apparatus synchronizations
Measure from a distance from slab, the high-speed serial data SSIDataA and SSIDataB received is parsed, export laser three
Parallel range data LA [15..0] between apomecometer and slab, LB [15..0].
4. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 1, its
It is characterised by that the width of plate slab computing module, using CLKA as synchronous working clock, a range data LA is received every 1ms
[15..0], LB [15..0], width of plate slab is calculated according to Width Formula of Rib Knitted Fabric W=D-LA-LB, and wherein D is that two laser triangulations are surveyed
Fixed range between distance meter, W is width of plate slab.
5. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 1, its
It is characterised by that the laser triangular distance measuring apparatus includes laser, plus lens, receiving lens, line array CCD driving plate, FPGA controls
Plate, integrated machine support, the laser send beam of laser, are irradiated to through plus lens on testee, form one
Hot spot, the hot spot is scattered on testee surface, and a portion scattered light drives by receiving lens in line array CCD
It is imaged on plate, the light envelope signal that the line array CCD driving plate is produced gives FPGA control panels.
6. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 5, its
It is semiconductor laser to be characterised by the laser.
7. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 6, its
It is the violet semiconductor laser that wavelength is 405nm to be characterised by the semiconductor laser.
8. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 6, its
It is characterised by that the semiconductor laser is provided with the laser diode with PD.
9. a kind of width of plate slab device for dynamically detecting based on FPGA and laser triangulation according to claim 5, its
It is characterised by before the line array CCD driving plate being provided with wavelength 405nm narrow band pass filters.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759458A (en) * | 2018-12-25 | 2019-05-17 | 山东爱普电气设备有限公司 | A kind of wide system and method for rolled piece survey for manipulator of rolling mill |
| CN111014605A (en) * | 2019-12-12 | 2020-04-17 | 唐山不锈钢有限责任公司 | Online real-time measurement system and calculation method for width and length of casting blank |
| CN111795632A (en) * | 2020-07-02 | 2020-10-20 | 北京科技大学设计研究院有限公司 | On-line automatic measurement method for length of stokehole plate blank |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777411A (en) * | 1993-09-08 | 1995-03-20 | Sumitomo Metal Mining Co Ltd | Size measuring device for plate material with fine recess |
| US5581353A (en) * | 1995-02-14 | 1996-12-03 | Qualitek Ltd. | Laser-based measurement apparatus and method for the on-line measurement of multiple corrugated board characteristics |
| JP2001280919A (en) * | 2000-03-28 | 2001-10-10 | Kawasaki Steel Corp | Instrument and method for measuring plate width of rolled material |
| KR100711408B1 (en) * | 2005-12-24 | 2007-04-30 | 주식회사 포스코 | Device for on-line measuring width of strip |
| US20070236680A1 (en) * | 2006-03-29 | 2007-10-11 | Barker Lawrence D | Calibration system for sawmill scanning systems |
| CN101158876A (en) * | 2007-09-28 | 2008-04-09 | 武汉科技大学 | Double rows BTST billet steel visible sensation positioning apparatus based on DSP and FPGA |
| KR20100034151A (en) * | 2008-09-23 | 2010-04-01 | 에스티엑스조선해양 주식회사 | Equipment to measure length and width of steel materials using vision camera, and method to measure length and width of steel materials using the same |
| CN201993090U (en) * | 2010-11-23 | 2011-09-28 | 东莞市日新传导科技股份有限公司 | Laser diameter detecting device based on FPGA (Field Programmable Gate Array) |
| CN103179332A (en) * | 2011-12-22 | 2013-06-26 | 洛阳理工学院 | Visual target self-adaption detection controller based on field programmable gate array (FPGA) technology |
| CN103727876A (en) * | 2013-12-20 | 2014-04-16 | 西安理工大学 | Strip width and center measurement system and method based on parallel laser rays |
-
2017
- 2017-05-19 CN CN201710356004.7A patent/CN107091612A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0777411A (en) * | 1993-09-08 | 1995-03-20 | Sumitomo Metal Mining Co Ltd | Size measuring device for plate material with fine recess |
| US5581353A (en) * | 1995-02-14 | 1996-12-03 | Qualitek Ltd. | Laser-based measurement apparatus and method for the on-line measurement of multiple corrugated board characteristics |
| JP2001280919A (en) * | 2000-03-28 | 2001-10-10 | Kawasaki Steel Corp | Instrument and method for measuring plate width of rolled material |
| KR100711408B1 (en) * | 2005-12-24 | 2007-04-30 | 주식회사 포스코 | Device for on-line measuring width of strip |
| US20070236680A1 (en) * | 2006-03-29 | 2007-10-11 | Barker Lawrence D | Calibration system for sawmill scanning systems |
| CN101158876A (en) * | 2007-09-28 | 2008-04-09 | 武汉科技大学 | Double rows BTST billet steel visible sensation positioning apparatus based on DSP and FPGA |
| KR20100034151A (en) * | 2008-09-23 | 2010-04-01 | 에스티엑스조선해양 주식회사 | Equipment to measure length and width of steel materials using vision camera, and method to measure length and width of steel materials using the same |
| CN201993090U (en) * | 2010-11-23 | 2011-09-28 | 东莞市日新传导科技股份有限公司 | Laser diameter detecting device based on FPGA (Field Programmable Gate Array) |
| CN103179332A (en) * | 2011-12-22 | 2013-06-26 | 洛阳理工学院 | Visual target self-adaption detection controller based on field programmable gate array (FPGA) technology |
| CN103727876A (en) * | 2013-12-20 | 2014-04-16 | 西安理工大学 | Strip width and center measurement system and method based on parallel laser rays |
Non-Patent Citations (2)
| Title |
|---|
| 徐强 等: ""基于线阵CCD的激光测距仪设计"", 《常州工学院学报》 * |
| 米铱公司: ""激光三角反射式位移传感器"", 《豆丁网》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759458A (en) * | 2018-12-25 | 2019-05-17 | 山东爱普电气设备有限公司 | A kind of wide system and method for rolled piece survey for manipulator of rolling mill |
| CN111014605A (en) * | 2019-12-12 | 2020-04-17 | 唐山不锈钢有限责任公司 | Online real-time measurement system and calculation method for width and length of casting blank |
| CN111014605B (en) * | 2019-12-12 | 2021-08-13 | 唐山不锈钢有限责任公司 | Online real-time measurement system and calculation method for width and length of casting blank |
| CN111795632A (en) * | 2020-07-02 | 2020-10-20 | 北京科技大学设计研究院有限公司 | On-line automatic measurement method for length of stokehole plate blank |
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