CN107167243A - A kind of four-way Color Recognition System based on TCS3200D - Google Patents
A kind of four-way Color Recognition System based on TCS3200D Download PDFInfo
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- CN107167243A CN107167243A CN201710540339.4A CN201710540339A CN107167243A CN 107167243 A CN107167243 A CN 107167243A CN 201710540339 A CN201710540339 A CN 201710540339A CN 107167243 A CN107167243 A CN 107167243A
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- color recognition
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- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 238000007738 vacuum evaporation Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 240000004343 Indigofera suffruticosa Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of Color Recognition System, Optical system module, data collecting system module, data handling system module, display system module etc. are included.Whole system is that, by the processing module using the FPGA of Cyclone IV as core, four-way TCS3200D sensors, optical system and LCD1602 erect what is come.High efficiency fpga chip is taken as data processor, compared to conventional one-piece machine and the Color Detecting System of sensor, there is high-performance, it is low-power consumption, low cost, easily operated and safeguard, while small volume, development ability are strong, the requirement of user's practical application can be met.
Description
Technical field
The present invention relates to a kind of Color Recognition System, more particularly to a kind of four-way colour recognition system based on TCS3200D
System, belongs to colour recognition control field.
Background technology
With the continuous progress of society, colour recognition is increasingly widely applied in today's society life.Each
The extensive use of different field causes colour recognition technology to have quick development, by being organically combined with other technologies, can be
Industry Control, product manufacturing provide superior technique with numerous industries such as detection and supported.
Currently, colour recognition technology is mainly realized by single-chip microcomputer simple in construction, easy to use.In society not
Under disconnected progressive, colour recognition in industrial and agricultural production with acting on increasing in detecting so that the requirement to colour recognition is gradually carried
Height, control cost is not required nothing more than, the raising of practicality and accuracy is also required.Other in the market colour recognition instrument is mainly pin
To industrial, and its is expensive, is adapted to colour recognition instrument that medium-sized and small enterprises and personal user use seldom, and precision
It is not high.
A kind of Color Recognition System and method of such as Application No. " 20120222489.8 ", wherein Color Recognition System
Including white light source, color acquisition module, single-chip microcomputer and LCD display, white light source module includes white light source and connected with it
The sealing passage connect, the light of white light source after the sealing passage by being radiated on testee；Color acquisition module includes face
Colour sensor and collector lens, collector lens are arranged on before color sensor, and the light of testee reflection passes through the collector lens
Gathered by color sensor；The optical signal collected is converted into data signal and is sent to single-chip microcomputer by color sensor enters line number
According to processing, the HSI values and rgb value of different color modes are obtained, and is sent to LCD display progress data display.The invention
Color Recognition System it is simple in construction, optical system imperfection, precision is not high, if carry out practical application, in addition it is also necessary to have larger
Lifting and optimization space.
A kind of and for example wood color identifying system of Application No. " 201510607998.6 ", it includes white luminous light
Source, TCS3200D color sensors, programmable controller, LCD liquid crystal touch screens, the light that white emitting light source is sent are anti-through plank
Inject into color sensor, color sensor, white emitting light source, LCD liquid crystal touch screens are connected with programmable controller.Should
Wood color identifying system is simple in construction, but is due to lack entire optical system, color sensor and tested wood surface
Distance is needed to be maintained at the short length ability normal works of 10mm, and the sensor in moving process is easily damaged, and easily occurs thing
Therefore.
The content of the invention
The technical problems to be solved by the invention are the deficiencies for background technology, are designed a kind of based on TCS3200D's
Four-way Color Recognition System.
In order to solve the above-mentioned technical problem the present invention, devises a set of light for including light source, lens, polarising means and diaphragm
System and the four-way Tansducer For Color Distiguishing module based on TCS3200D.Technical scheme is as follows：
A kind of four-way Color Recognition System based on TCS3200D, including optical system, data collecting system, data processing system
System, display system etc..
Above-mentioned Color Recognition System, its optical system includes white light LEDs, speculum, collimation lens, the polarizer, incident light
Door screen, reflecting surface（Determinand）, analyzer, reflection diaphragm, convergent lens.
Above-mentioned Color Recognition System, its data collecting system includes four TCS3200D color sensors, in acquisition system
In be positioned over unified plane into field word arrangement.
Above-mentioned Color Recognition System, its data handling system, are employed by A Ertela（Altera）Company's production
The Series FPGA chip EP4CE6E22 of Cyclone IV as data handling system main control chip.It is all the said firm to be aided with simultaneously
The EPCS16 configuration chips of product and other peripheral circuits constitute whole data handling system.
Above-mentioned Color Recognition System, it shows that the display device of system is LCD1602 liquid crystal displays.
Tetra- controlling switch of S0, S1, S2, S3, are connected by above-mentioned quad-channel sensor in each chip corresponding position respectively
Come, then be connected with I/O mouths on main control chip, after four enable OE interconnections and be connected to the I/O mouths of main control chip, four
OUT is connected respectively to I/O mouthfuls, will finally be connected with the mains between the VCC and GND of four sensor chips after eight 104 electric capacity in parallel
VCC and GND.
The above technical scheme that the present invention takes with existing single-chip microcomputer compared with the technology of sensor combinations, with following skill
Art feature：
1. the present invention carries out colour recognition based on FPGA processor and four-way TCS3200D sensors, accuracy of identification is high, expand
Property is strong；
2. optical system designed by the present invention the making an uproar of introducing of veiling glare and internal light source to external world before optical signal enters sensor
Sound is controlled and removed, and reduces the influence of extraneous veiling glare and internal light source to measurement result；
3. four groups of data that quad-channel sensor involved in the present invention is measured in same object plane are averaging processing, increase
Accidental error is reduced while sensor light-receiving area；
4. the data acquisition and processing (DAP) part of the present invention is using TCS3200D sensors as detector, using FPGA as computing, control
Core processed, it has the advantages that high-performance, low cost, easily operated and safeguard, while small volume, development ability are strong, user
Just the requirement of user's practical application can be met.
Brief description of the drawings
The present invention is used as below in conjunction with drawings and Examples and further illustrated, in accompanying drawing：
Fig. 1 is the system structure diagram of the present invention；
Fig. 2 is the optical system diagram of the present invention；
Fig. 3 is flow chart of the method for the present invention；
Fig. 4 is the main program flow chart of present system work.
Embodiment
In order that the purpose of the present invention, technical scheme and its advantage are more clearly understood, below in conjunction with accompanying drawing and embodiment party
Case, the present invention will be described in further detail.
As shown in figure 1, the Color Recognition System of the present invention includes white light source module 20, four-way color acquisition module
30th, FPGA10, LCD display 50 and optical system 40, wherein white light source and with the detailed condition of its optical system referring to figure
2.White light source takes high-brightness white-light LED, the power module for also including powering for its each several part in Color Recognition System（In figure
Do not represent to embody）
In the present invention, FPGA10 uses efficient data processor EP4CE6E22C8 fpga chips, to quad-channel sensor
The signal that detection comes carries out data processing, has benefited from the high-performance of FPGA device, and the design is used when carrying out data processing
A large amount of concurrent operations, improve data processing and response speed.
The color sensor of the present invention uses TCS3200D, for this sensor, is pasted using the SOIC surfaces of 8 pins
Dress formula is encapsulated, and 64 photodiodes is integrated with one chip, these photodiodes are divided into four types, wherein 16
Diode carries red filter；16 diodes carry green filter；16 diodes carry blue electric-wave filter；Residue 16
It is individual without any wave filter, so can be through whole optical informations.Simultaneously photodiode in chip not in sequence
Arrangement, takes the mode of crossed array, can so reduce incident light and be irradiated to uneven on sensor, reduce colour recognition
Difficulty；On the other hand, the identical photodiode of color is in parallel, is evenly distributed on chip, is missed for eliminating position
Difference.The typical reference frequency output of the sensor, by programmable two pins, is selected according to demand from 2Hz-500kHz
The wave filter of different colours, can also be by two programmable pins come from 100%, 20% or 2% different export ratio
The factor, or power remove pattern, output-scale-factor make the output of sensor can adapt to different measurement ranges, improve it
Adaptability.
Color acquisition module 30, integrates four TCS3200D sensors and adds capacitor filtering squelch circuit and design
Quad-channel sensor module, main purpose is in order to receive the flashlight of diverse location everywhere in the same plane, in order to eliminate
Accidental error in system.It thereby may be ensured that color sensor exports accurate frequency.
Four-way color sensor is enabled by FPGA and controlled, and the optical signal collected is converted into pulse duration frequency signal,
And FPGA10 progress data processings are sent to, it is colour recognition, obtains the rgb value of color to be measured, and pass through conversion decoding hair
Give the display that LCD display 50 carries out RGB tristimulus values.
In the present invention, the dutycycle of four-way TCS3200D color sensors output is the pulse of 50% different frequency, institute
To realize frequency counter circuit with FPGA design, the four group pulse numbers up to I/O mouthfuls are recorded to it.There are two methods to calculate
The three-component values of RGB.The first：Red wave filter is controlled, allows its timer with regular time timing, frequency meter starts work
Make, when timer overflows, extract the numerical value in counter, obtain red count value.Indigo plant can be respectively obtained according to aforesaid operations
The numerical value of color, green component, then by white balance adjusting, then can obtain the RGB tristimulus values for the color to be measured surveyed.Second
Method：Red filter is controlled, allows frequency meter to work, timer starts simultaneously at timing, when the numerical value of frequency meter reaches 255,
The time in timer is extracted, according to the method described above, blueness, the time of green component can be measured, then by white balance adjusting, then
It can obtain the RGB tristimulus values for the color to be measured surveyed.Tested by multiple contrast experiment, obtain the accidental mistake of first method
Difference is less than second, so the system is counted using first method.
Light source selected by the present invention is CIE standard light source D65, but is due to that the factors such as external environment can be a certain degree of
Measurement result is influenceed, in order to ensure the accuracy of measurement result, the offset error brought by external environment is reduced.In measurement
Before, white balance calibration is carried out to instrument first.So-called white balance calibration, can be divided into Zero point calibration and standard white plate calibration two
Kind, in the present invention, because being accomplished that the identification measurement of color, using blank calibration as white balance calibrating method,
Comprise the following steps that：
Color detection is carried out to standard white plate using a whole set of chromatic measuring system under total darkness environment, so as to obtain three data values, remembered
For,,。
Will,,These three values as the system reference value.
In the color measuring carried out after, by obtained RGB tristimulus values and reference value,,Business is respectively,
Using this as measurement final result.
As shown in Fig. 2 in figure：S201 is white light LEDs；S202 is collimation lens；S203 is the polarizer；S204 is incident light
Door screen；S205 is determinand reflecting surface；S206 is analyzer；S207 is reflection diaphragm；S208 is convergent lens；S209 is four-way
TCS3200D sensors.
Inside the optical system of color acquisition system, the light from spot light LED is formed by parabolic mirror
Directional light.Directional light makes light become homogeneous soft through one piece of collimation lens.Light changes polarization direction through polarizer.Most
By diaphragm irradiation, a certain amount of light completes incident light irradiation on the test object afterwards；According to principle of reflection, launch from determinand
The light for carrying colouring information enters reflection channel, and the flashlight of mirror-reflection is eliminated by polarizer, is hidden again by diaphragm
The unnecessary light of gear, allows light uniformly to converge on quad-channel sensor through plus lens.
As shown in figure 3, Color Recognition System of the present invention, measuring process is as follows：
S301, by optical system by uniform, the soft irradiation of white light on the test object；
S302, by FPGA control sensor enable, measure testee reflection come optical signal；
The optical signal collected is switched to data signal by S303, color sensor, and is transferred to FPGA data processing center；
S304, FPGA are handled the data collected；
S305, by the RGB tristimulus values obtained after data processing, be sent to LCD display carry out data display；
In the present invention, the main program flow chart of Color Recognition System work is as shown in figure 4, comprise the following steps：
S401, Color Recognition System beginning；
S402, Color Recognition System are initialized, predominantly sensor Enable Pin, I/O mouthfuls of data transfer and LCD display
I/O mouthfuls of 8 data initialization；
After the completion of S403, initialization, system white balance adjusting is carried out；
S404, if desired progress white balance adjusting, enable white balance module, gather white balance RGB component, calculate white balance and adjust
Save the factor；If need not if be directly entered s405；
S405, judge whether to detect colour recognition instruction；
S406, if detect colour recognition instruction if carry out data reading and processing, if not detecting colour recognition
Instruction, which is then returned, to be continued to detect；
S407, judge whether processing terminates RGB tristimulus values；
If S408, processing terminate, into LCD display module, the RGB tristimulus values measured is shown；If processing does not terminate,
Continue whether detection process terminates, untill processing terminates；
Patent of the present invention is a kind of four-way Color Recognition System based on TCS3200D, and whole system is by with Cyclone IV
FPGA erects what is come for processing module, four-way TCS3200D sensors, optical system and the LCD1602 of core.Take height
Efficiency FPGA data process chip, compared to conventional one-piece machine and the Color Detecting System of sensor, with high-performance, low-power consumption,
It is inexpensive, easily operated and the advantages of safeguard, while small volume, development ability are strong, the requirement of user's practical application can be met.
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein have with
The general understanding meaning of those of ordinary skill in art of the present invention is identical.
To those skilled in the art, it can according to the above description be improved or be converted, and it is all these
Modifications and variations belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of four-way Color Recognition System based on TCS3200D comprising Optical system module, data collecting system module,
Data handling system module, display system module, standard sources module, it is characterised in that：
Color acquisition system S30 Enable Pins, the light projected by standard sources S20 are directly controlled by FPGA programmable I/O interfaces
Line is projected on color acquisition system S30 after being handled through optical system S40, and the processing of data and LCD display decodings are in FPGA
Complete, data are shown in piece by outside independent display module S50.
2. the Color Recognition System described in claim 1, it is characterised in that：Described color acquisition system S30 sensors are in field
Font is arranged, and its chip model is TCS3200D, while being integrated with capacitor filtering squelch circuit on piece and using containing silver wire
Welding.
3. Color Recognition System according to claim 1, it is characterised in that：Described data processing module S10 is employed
EP4CE622C8 main control chips in the FPGA of Cyclone IV and combining with the EPCS16 configuration chips of altera corp are built
Active serial configuration circuit, uses jtag port to carry out data download and draw whole I/O pins to arrange aciculiform formula.
4. Color Recognition System according to claim 1, it is characterised in that：Described display module S50 uses LCD1602
Display screen simultaneously carries out instruction write-in using the drive circuit realized in FPGA pieces to it.
5. Color Recognition System according to claim 1, it is characterised in that：Described optical system S40, knows in this color
The collimated lens processing of light projected in other system by light source is projected into after the polarizer to be radiated on object plane to be measured through diaphragm,
The flashlight of reflection injects convergent lens through analyzer and diaphragm processing again, and most flashlight is incident upon in sensor plane at last.
6. Color Recognition System according to claim 1, it is characterised in that：The light source S20 is CIE standard light source D65,
This light source is placed in paraboloid reflecting cup focal point, while reflector uses vacuum evaporation of aluminum technique plated film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540339.4A CN107167243A (en) | 2017-07-05 | 2017-07-05 | A kind of four-way Color Recognition System based on TCS3200D |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540339.4A CN107167243A (en) | 2017-07-05 | 2017-07-05 | A kind of four-way Color Recognition System based on TCS3200D |
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| CN107167243A true CN107167243A (en) | 2017-09-15 |
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| CN201710540339.4A Pending CN107167243A (en) | 2017-07-05 | 2017-07-05 | A kind of four-way Color Recognition System based on TCS3200D |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576391A (en) * | 2017-10-20 | 2018-01-12 | 哈尔滨理工大学 | A kind of blue light detecting system |
| CN108255005A (en) * | 2017-12-29 | 2018-07-06 | 花花猫显示科技有限公司 | For the three primary light source control of laser projection and color measurement system |
-
2017
- 2017-07-05 CN CN201710540339.4A patent/CN107167243A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 许超等: "基于TCS3200的颜色检测装置设计及光路优化", 《微处理机》 * |
| 马文秀等: "基于TCS3200D 数字式颜色测试仪的研究", 《微型机与应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576391A (en) * | 2017-10-20 | 2018-01-12 | 哈尔滨理工大学 | A kind of blue light detecting system |
| CN108255005A (en) * | 2017-12-29 | 2018-07-06 | 花花猫显示科技有限公司 | For the three primary light source control of laser projection and color measurement system |
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Application publication date: 20170915 |