CN201130057Y - Color detector and color recognition device - Google Patents
Color detector and color recognition device Download PDFInfo
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- CN201130057Y CN201130057Y CNU2007200555706U CN200720055570U CN201130057Y CN 201130057 Y CN201130057 Y CN 201130057Y CN U2007200555706 U CNU2007200555706 U CN U2007200555706U CN 200720055570 U CN200720055570 U CN 200720055570U CN 201130057 Y CN201130057 Y CN 201130057Y
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Abstract
The utility model discloses a color detector and a color recognition device, wherein the color detector comprises a luminous source which emits detecting light to to-be measured objects, and a sensor which is used for receiving reflected light to measuring color information, wherein the color recognition device comprises the color detector, a data processing unit which is used for recognizing color through collecting data, storing data and comparing data and is used for judging relative cases, and an output unit used for outputting color recognition results. The color detector and the color recognition device can be applied in electronic whiteboards, when writing on the whiteboards, the detector and the device can automatically recognize the color of a writing pen, which is convenient for writers as writing on common blackboards or whiteboards, and the color of the handwritings depends on the color of writing pens. The color detector and the color recognition device are also can be applied to other situations which need to recognize colors.
Description
Technical field
The utility model relates to color identification field, relates in particular to a kind of color detector and color recognition device.
Background technology
Along with the continuous development of electronic technology, the artificial intelligence imitation level of electronic product is also improving constantly, and is identified as example with color, is substituted by corresponding electronic technology more and more by the active color identification of human eye work for a long time always.For example: in the library, use the color differentiating technology that document is classified, utilize the color recognition device to provide color identification service etc. for blind person or achromate.
In the device of existing color identification, there are three independent light electric diodes of employing to launch the color that red, blue, green three looks detect determinand respectively, its shortcoming is a poor reliability, measurement range is narrow.As application number is that 200510090539.1 Chinese patent discloses a kind of color-identifying apparatus, the disclosed color recognition device of this utility model patent must be launched red, green, blue three looks successively to determinand and survey light, utilize cadmium sulfide (CdS) photoresistance to receive the reflected light of determinand, according to its change in resistance, and the cooperation bleeder circuit, thereby obtain colouring information.This color recognition device requires photoresistance must be installed in the center of three light emitting diodes.When colouring information is carried out data processing, must provide a white determinand to carry out environment light source separately and proofread and correct.The defective of this utility model is: 1, photoresistance is subject to influence of temperature change, poor reliability, and measurement range is limited; 2, photoresistance must be installed in the center of three light emitting diodes, has increased the complicacy of equipment and the difficulty of production; 3, carry out the environment light source timing, a white determinand must be provided separately, just can proofread and correct, infeasible or environment for use is limited in actual the use; 4, because the position of light emitting diode and photoresistance is fixed, must its reflected light be received by photoresistance by the position of adjusting determinand during test, be difficult to the position of control determinand during test, increase difficulty of test.
In the prior art, other have the color recognition device be by on device in advance marker color reach the purpose of distinguishing look.Disclose a kind of look recognition device and method that is used for electronic whiteboard as Canadian Patent CA 02219886, this device is made up of the tool shelf (Tool Tray) and the application program of electronic whiteboard of electronic whiteboard.Tool shelf has four grooves of placing lettering pens, red, yellow, black, the green four kinds of colors of the prior mark of a groove, four lettering pens are red, yellow, black, the green four kinds of colors of mark also, during placement the lettering pen color must with a groove solid colour.A pair of infrared transmission/reception diode is placed in the center of each groove, and this diode is exactly the sensor of a look.Recognition methods is: when certain pen was picked up, because reception diode does not receive institute's reflects infrared light, this state can be employed program and note, and think a groove sky, because a groove is corresponding with diode, so which groove sky, just means that the lettering pen of which kind of color is picked up.The defective of this patent is: 1, identification colors must be by the color that provides in advance, otherwise can not distinguish; 2, the lettering pen color is by setting in advance a groove color, and whether the detecting pen groove be that sky is discerned, and lettering pen must be placed in the groove with its solid colour, can not exchange with the pen of other color, otherwise identification error.
The utility model content
At above-mentioned defective, the utility model provides a kind of color detector and color recognition device, only determinand (as lettering pen) is placed on the utility model device, just can identify the color of determinand, output unit of the present utility model is not only exported the determinand color, and output " incident ", the definition of the utility model regulation " incident " is that two kinds of actions are picked up or put down to determinand.Design feature of the present utility model is when event occurs, incident and color can be exported to host computer, need not manual operations such as button, therefore is suitable for the automatic identification occasion of color.In addition, in view of the defective of prior art, this color recognition device need not on the color recognition device the discernible color of mark in advance, and need not provides white determinand separately, has characteristics such as testing element is few, simple in structure, easy to use, identification range is wide.
Technical solutions of the utility model:
A kind of color recognition device is provided, and this device has comprised color detector, data processing unit.
The above color recognition device can further include output unit, and it is connected with data processing unit.
Color detector comprises light emitting source, sensor.
Described color detector also can further comprise one or more pallets with matrix of certain slope, and described light emitting source and sensor are placed side by side in pallet, and there is a baffle plate centre, and the quantity of color detector equates with the quantity of pallet.
Described light emitting source is used for to the monochromatic light of surveying of determinand emission; Described sensor is used to receive determinand
Reflected light, and according to described catoptrical optical parameter generation and determinand color correspondent frequency electric signal.
Described light emitting source is the light emitting diode of coloured light of can turning white.
Described sensor is the cmos semiconductor sensor, by measuring the trichromatic light intensity of RGB in the determinand reflected light successively, obtain colouring information, and measured value is converted to electrical signal of the frequency, this cmos semiconductor sensor surface is the optoelectronic induction diode, the inner integrated wave filter of three kinds of colors of RGB (RGB), colorama are directly exported digital electric signal to the converter of frequency.
The color recognition device also can further comprise shell, is used to integrate above-mentioned color detector, data processing unit and output unit.
Can also a pair of infrared emission/receiving tube be installed further in the described pallet, be used to judge whether determinand is arranged in the pallet.Whether the utility model will have determinand to be defined as " expiring " state with there being determinand to be called " state " of pallet in the pallet in the pallet, no determinand in the pallet is defined as " sky " state.
Described color identification output unit sends judged result to host computer in both cases, and 1, during the device start, send the pallet state; When 2, event occurs, transmit color recognition result and incident judged result to host computer.
Data processing unit:
This data processing unit is used to control color detector; Receive the electrical signal of the frequency of color detector output, and produce corresponding result of detection according to this electrical signal of the frequency.
Described data processing unit comprises:
Data acquisition unit is regularly gathered the data of sensor;
The color parameter storage unit, the Standard Colors parameter that is used to store various colors comprises the Standard Colors parameter of pallet backcolor;
The contrast arithmetic element is used for the Standard Colors parameter that the data that will gather and storage unit store and compares computing, obtains the color recognition result;
The incident judging unit, that judges determinand picks up, puts down incident, and has judged whether that determinand is placed in the pallet, if do not have, then is dummy status.
Described data processing unit is the 89C51 Series chip.
Described color recognition device also can further comprise color identification output unit, is connected to data processing unit, is used to export color recognition result and incident judged result.
Compared with prior art, advantage of the present utility model is:
The utility model does not have specific (special) requirements to light emitting source, utilizes a baffle plate that light emitting source and sensor are separated simultaneously, and sensor is only gathered the reflected light of determinand.In order to obtain sampled data preferably, adopt white light-emitting diode as light emitting source in the utility model statement, but in fact be not limited to white light source, other light source also can be realized measuring.
In color recognition device of the present utility model and the method, sensor internal is integrated colorama is directly exported the digital electric signal of three primary colours to the converter of frequency, need not AD (modulus) switching device, compared with prior art, simple in structure, calculating process obtains simplifying, and is easy to realize.
In addition, the utility model obtains the color recognition result of determinand with the color parameter comparison of tabling look-up of color data to be measured with storage in advance.In the comparison operation process, adopted distance operation, just can judge the color recognition result by relatively drawing bee-line.This computing method do not need complex calculations, and are simple clear and definite, are easy to realize.
In addition, the utility model comprises incident, the state deterministic process of determinand.This incident, state deterministic process help the expansion of host computer application program, can be applied to the multiple color occasion of identification automatically that needs neatly, make to the utlity model has range of application more widely.
Compare with the technology of existing electronic whiteboard lettering pen color identification, the utility model can be discerned any color, has overcome the defective of " a kind of lettering pen of color must be placed in the groove of corresponding color ", has realized the purpose of " institute take be write ".
Description of drawings
Fig. 1 is the structured flowchart of color recognition device;
Fig. 2 is the outward appearance front view (FV) of color detector;
Fig. 3 is a pallet outward appearance front view (FV) of placing determinand;
Fig. 4 is the circuit diagram of color recognition device;
Fig. 5 is the workflow diagram of color recognition device;
Fig. 6 is the event recognition state transition graph;
Fig. 7 is second kind of workflow diagram of color recognition device.
Embodiment
With reference to the accompanying drawings, embodiment of the present utility model is described.
As shown in Figure 1, this color recognition device comprises color detector 11, data processing unit 12, color identification output unit 13, pallet 15, shell 14.
Described shell is used to integrate above-mentioned color detector, data processing unit and output unit.
| S2 | S3 | Wave filter is selected |
| L | L | Red filter |
| L | H | Blue electric-wave filter |
| H | H | Green filter |
| H | L | Close wave filter, collect the luminous flux of color own |
Sensor output signal is the square wave frequency digital signal of dutycycle 50%, the square wave of the corresponding different frequency of different colors and light intensity.
The principle of work of color detector: light emitting source sends surveys illumination to determinand, sensor is selected a color filter according to the level signal of S2, S3 pin, for example: when selecting red filter, have only redness to pass through in the incident light, so just obtain the light intensity of red light; In like manner, select other wave filter, just can obtain the light intensity of blue light and green light, color itself.
Described pallet 15 is used for displaying determinand, and light emitting source, sensor are installed in the pallet.As shown in Figure 3, light emitting source, sensor are installed in pallet 15 1 sides, vertically lay; Determinand 31 adjacent light emitting sources, sensor.Pallet 15 has certain slope, when determinand 31 is right cylinder, makes determinand tumble pallet one side, adjacent light emitting source, sensor voluntarily.
Described data processing unit 12 is used to control color detector, and receives the electric signal of described color detector output.Data processing unit comprises collecting unit 121, color parameter storage unit 122, contrast arithmetic element 123, incident judging unit 124.
Described color parameter storage unit 122 is used to store the parameter of the various Standard Colors and the pallet background color of prior acquisition, and these parameters are formed Standard Colors parameter lists.
The collection of the above Standard Colors parameter is to use the set-up procedure of color recognition device of the present utility model, already obtains before this color detector 11 is used for color detection and stores.The standard color parameter list is as shown in the table.
| Color designation | Parameter value (X (blue/green), Y (red/green)) |
| Light orange | (0x0036，0x010c) |
| Orange | (0X003D，0X012E) |
| Red | (0X004C，0X0188) |
| Pink | (0X0073，0X01D1) |
| Rose-red | (0X0044，0X0168) |
| Yellow | (0X0021，0X0066) |
| Pale purple | (0X0135，0X00EB) |
| Indigo | (0X00C3，0X0086) |
| Blue | (0X0116，0X0059) |
| Light blue | (0X00E3，0X0026) |
| Green | (0X0069，0X001A) |
| Dark grey (80%) | (0X005D，0X0057) |
| Golden | (0X0025，0X0061) |
| Plum | (0X0089，0X01AD) |
| Sky blue | (0X00C6，0X0024) |
| Black | (0X0069，0X005E) |
Memory device can be E2PROM.
Concrete gatherer process: collecting unit 121 sends control command, these control commands are the driven for emitting lights diode operation at first, and next enables TCS230, S2, the S3 pin of control TCS230, TCS230 is gating redgreenblue light filter successively, measures the tristimulus values of determinand.Last collecting unit is collected the three primary colors electric signal of TCS230 output, and these frequency signals are noted, and carries out follow-up analysis and judgement.If there is not determinand in the pallet, the information that collects will be the background colour of pallet.
Described contrast arithmetic element 123 compares computing with the record data of data acquisition unit and known storage data exactly, obtains colouring information to be measured.
Described incident judging unit 124, what be used to judge determinand picks up, puts down incident, and judges that determinand whether always in pallet, does not perhaps have determinand in the pallet, is empty.
The circuit diagram of color recognition device is seen Fig. 4.
The 89C51 Series chip can be used as data processing unit, and its P0 mouth connects the control pin of TCS230, and the P2 mouth drives light emitting source and enables.The P3 mouth connects the frequency output of TCS230, utilizes the output frequency electric signal of the counter function sampling TCS230 of single-chip microcomputer.
When needs were tested a plurality of determinand simultaneously, above 89C51 Series chip also can further connect analog switch CD4052, is used for switching in turn color detector, solved the limited problem of its counter resources.
The utility model also provides a kind of color identification method.
Fig. 5 is a color identification method of work process flow diagram, and this recognition methods is based on the principle of three primary colours: any colour all can obtain with three kinds of different colours (three primary colours RGB) mixing; The brightness of synthetic colorama equals each component brightness sum, promptly meets the brightness additivity law.According to this principle,, be what color with regard to this determinand of decidable as long as we know trichromatic component value in the determinand so.Specific implementation method is as follows:
Step 1: data processing unit control light emitting source sends detection light, invests the determinand in the pallet.When from the light of light source after the surface reflection of determinand, recorded by color sensor, this reflected light is relevant with the color on surface, for example, white light incides on the red surface, can be reflected into redness, the ruddiness bump color sensor of reflection produces the electrical signal of the frequency corresponding to the RGB three primary colours.
Step 2: data processing unit control sensor makes sensor receive the reflected light of determinand.S2, the S3 pin of control TCS230 are selected red filter, measure red light intensity; Select blue, green filter then successively, measure corresponding light intensity; Selecting does not at last have under the situation of light filter, measures the light intensity (optical informations that measured object is whole) that receives.
Step 3: the electric signal of data processing unit receiving sensor, calculation process is analyzed and contrasted to electric signal.
Data processing unit receiving sensor measured value is counted successively to the output pulse of TCS230.Its method is: it is a set time (as 10ms) that timer is set, and selective filter calculates the output umber of pulse of inner sensor during this period of time then, and this value is exactly the intensity signal of corresponding color.
During data processing unit record sampled value, count pulse is processed the relative three primary colours coefficient of record color.Because the RGB three primary colours component of every kind of color is fixed, therefore every kind of primary colours are with respect to look mould (R+G+B)---the ratio of three primary colours summation is fixed, and in like manner, every kind of primary colours are also fixed with respect to the ratio of another kind of primary colours.In order to simplify computing, we adopt a kind of relative value in back as color coefficient.As based on green, so the relative value of every kind of color is:
In step 3, the method that computing was analyzed and contrasted to data processing unit to the numerical value that collects is as follows:
Shades of colour parameter in the parameter of the color to be measured that collects and the color parameter storage unit is carried out distance operation one by one, simultaneously operation result being carried out minimum value calculates, obtain minimum value, color relation is the color of determinand in the pairing color parameter storage unit of this minimum value so.The distance operation formula is as follows:
(R
u, G
u, B
u) be the rgb value of color to be measured;
(R
r, G
r, B
r) be the rgb value of certain color in the color parameter storage unit
Step 4: data processing unit generates the color judged result.
Can judge the color of determinand in the above step 3 according to distance operation, in order further to improve the color accuracy, the every kind of color that can be in the color parameter storage unit is determined the ultimate range limit, to avoid accepting not belong to the color in the color parameter storage unit.
Secondly, in the process of doing result's judgement, if there is not determinand in the pallet, then judged result should be background colour, and state is empty.Its determination methods is: color to be measured and background colour relatively if its color is approaching, then tentatively judge it is background colour.Simultaneously, whether come the auxiliary judgment determinand in pallet by luminous flux: when not having determinand in the pallet, light source sends detection light, but the intensity of reflected light that sensor receives is the most weak, by comparing the size of luminous flux, further determine to have or not determinand in the pallet.
Step 5: generation state and incident judged result.Described state comprises that (Full), determinand leave pallet sky (Empty) to determinand in pallet always, the determinand instability is shaken (Jitter) three kinds of states.Described incident comprises that determinand is picked up (Pickup), determinand is put down (Putdown) two kinds of actions.
The state conversion process of determinand as shown in Figure 6.It now is the starting point explanation with Empty.
1) the color recognition device judges by above-mentioned color identification method whether current state is empty, if, then keep this state (Empty), change for other arbitrary hue by background colour up to detecting current color, then judge the current Putdown incident that taken place, constitutional diagram rises to Putdown from Empty;
2) the color recognition device detects current color whether change has taken place, if keep this color always, thinks that then determinand always in pallet, judges that current state is Full, and constitutional diagram takes a step forward from Putdown, enters into Full.
3) the color recognition device keeps the Full state, has changed back background colour up to detecting color from current color, and judge that current state is Pickup this moment, and constitutional diagram changes Pickup over to.
4) the color recognition device detects color information, if remain background colour, then thinking does not have determinand in the pallet this moment, and constitutional diagram is returned to starting point Empty state.Keep this state always, variation has taken place, changed other arbitrary color from background colour unless detect color.
5) when the conversion that detects color be not from the sky to the look or look to sky, but (a certain) look just thinks that to the variation of (another) look this is that determinand is not put surely, enters the Jitter state of shaking.When color no longer changes, be returned to Full state or Empty state.
6) according to the above step, during the start of color recognition device, send the pallet state to host computer, perhaps when incident takes place, transmit color recognition result and incident judged result to host computer.
In the above color identification course of work, we adopt identification pallet background colour to judge picking up of determinand and put down incident, but also be not limited thereto kind of a method, can add supplementary means, as increase picking up and putting down of auxiliary judgment determinands such as mechanical switch, electronic inductor, so scheme two is as follows:
Increase a pair of infrared diode in pallet, one is used to send infrared light, and another is used to receive infrared light.In data processing unit, increase this control interface, make to send diode transmission infrared light, and inquire about the level value of reception diode in real time, judge the corresponding incident of determinand thus diode---picked up or put down.
Fig. 7 is the workflow diagram of scheme two.Compare with Fig. 5, increased step S51 ': light infrared transmission diode; And increased step S52 ': the electric signal that receives infrared receiving diode; And increased step S54 ': the reception condition of inquiry infrared receiving diode.
The above only is the utility model ground preferred implementation, should be pointed out that can also make some improvements and modifications under the prerequisite that does not break away from the utility model principle, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. color detector, it is characterized in that: comprise being used for to the monochromatic reflected light of surveying the light emitting source of light and being used to receive the determinand generation of determinand emission, produce and determinand color correspondent frequency electric signal sensor according to described catoptrical optical parameter, described light emitting source, sensor are connected with described determinand light path respectively.
2. according to the described a kind of color detector of claim 1, it is characterized in that: described color detector further comprises one or more matrix pallets with certain slope.
3. according to the described a kind of color detector of claim 2, it is characterized in that: described light emitting source and sensor are installed in the pallet side by side, and there is a baffle plate centre; The quantity of described color detector equates with the quantity of pallet.
4. according to the described a kind of color detector of claim 2, it is characterized in that: a pair of infrared emission/reception diode further is installed in the described pallet.
5. according to the described a kind of color detector of claim 1, it is characterized in that: described light emitting source is the light emitting diode of coloured light of can turning white.
6. according to the described a kind of color detector of claim 1, it is characterized in that: described sensor is the cmos semiconductor integrated sensor.
7. one kind comprises as the color recognition device of claim 1 to 6 color detector as described in each, it is characterized in that: also comprise data processing unit; Described data processing unit is connected respectively with light emitting source, the sensor of described color detector.
8. according to the described a kind of color recognition device of claim 7, it is characterized in that: described data processing unit comprises data acquisition unit, color parameter storage unit, contrast arithmetic element, the incident judging unit that connects successively, and data acquisition, two unit of color parameter storage are inputs of contrast arithmetic element, and the contrast computing is the input of incident judging unit.
9. according to the described a kind of color recognition device of claim 7, it is characterized in that: described color recognition device further comprises output unit, is connected to data processing unit.
10. described according to Claim 8 a kind of color recognition device is characterized in that: described data processing unit is the 89C51 Series chip.
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| CNU2007200555706U CN201130057Y (en) | 2007-08-15 | 2007-08-15 | Color detector and color recognition device |
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| CN101482404B (en) * | 2009-01-22 | 2010-09-29 | 吴锐光 | Tile color and specification differentiating apparatus and method |
| CN102600607A (en) * | 2012-03-30 | 2012-07-25 | 吴永良 | Color recognition system of nonmagnetic mahjong machine and method |
| CN102614657A (en) * | 2012-03-30 | 2012-08-01 | 南京财经大学 | Device and method for automatically detecting surface of common mahjong tile |
| CN102890077A (en) * | 2012-09-24 | 2013-01-23 | 胡建明 | Double-optical path Raman spectrometer |
| CN103512658A (en) * | 2012-06-29 | 2014-01-15 | 深圳市祈飞科技有限公司 | Color identification system and method |
| CN103630240A (en) * | 2013-11-14 | 2014-03-12 | 中国科学院上海光学精密机械研究所 | Object surface color measuring device and method |
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| CN104215329A (en) * | 2014-08-20 | 2014-12-17 | 广东美的集团芜湖制冷设备有限公司 | Photometry compensation system and photometry compensation method |
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| CN106908391A (en) * | 2017-02-10 | 2017-06-30 | 广东欧珀移动通信有限公司 | Terminal cover plate glass colour recognition methods and device |
| WO2017152547A1 (en) * | 2016-03-08 | 2017-09-14 | 京东方科技集团股份有限公司 | Colour identification device and colour identification method |
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| CN101482404B (en) * | 2009-01-22 | 2010-09-29 | 吴锐光 | Tile color and specification differentiating apparatus and method |
| CN102600607A (en) * | 2012-03-30 | 2012-07-25 | 吴永良 | Color recognition system of nonmagnetic mahjong machine and method |
| CN102614657A (en) * | 2012-03-30 | 2012-08-01 | 南京财经大学 | Device and method for automatically detecting surface of common mahjong tile |
| CN102614657B (en) * | 2012-03-30 | 2014-03-19 | 南京财经大学 | Device and method for automatically detecting surface of common mahjong tile |
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| CN102890077B (en) * | 2012-09-24 | 2015-03-04 | 胡建明 | Double-optical path Raman spectrometer |
| CN102890077A (en) * | 2012-09-24 | 2013-01-23 | 胡建明 | Double-optical path Raman spectrometer |
| CN103630240A (en) * | 2013-11-14 | 2014-03-12 | 中国科学院上海光学精密机械研究所 | Object surface color measuring device and method |
| CN103630240B (en) * | 2013-11-14 | 2015-07-29 | 中国科学院上海光学精密机械研究所 | Color of object surface measurement mechanism and method |
| CN103707634B (en) * | 2013-12-17 | 2016-11-23 | 衡水英利新能源有限公司 | Photovoltaic module automatic color separation printing equipment |
| CN103707634A (en) * | 2013-12-17 | 2014-04-09 | 衡水英利新能源有限公司 | Automatic color separating and printing device of photovoltaic assembly |
| CN104215329A (en) * | 2014-08-20 | 2014-12-17 | 广东美的集团芜湖制冷设备有限公司 | Photometry compensation system and photometry compensation method |
| CN105774190A (en) * | 2016-03-07 | 2016-07-20 | 安庆市达东电子科技有限公司 | Device for correcting hue before and after printing laminating |
| WO2017152547A1 (en) * | 2016-03-08 | 2017-09-14 | 京东方科技集团股份有限公司 | Colour identification device and colour identification method |
| US10197447B2 (en) | 2016-03-08 | 2019-02-05 | Boe Technology Group Co., Ltd. | Color recognition device and color recognition method |
| CN106908391A (en) * | 2017-02-10 | 2017-06-30 | 广东欧珀移动通信有限公司 | Terminal cover plate glass colour recognition methods and device |
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