CN203629685U

CN203629685U - Color identification device based on LED

Info

Publication number: CN203629685U
Application number: CN201320673053.0U
Authority: CN
Inventors: 徐一清; 李秀云
Original assignee: Zhejiang A&F University ZAFU
Current assignee: Zhejiang A&F University ZAFU
Priority date: 2013-10-24
Filing date: 2013-10-24
Publication date: 2014-06-04
Anticipated expiration: 2023-10-24

Abstract

Provided is a color identification device based on an LED. The device comprises a controller (1) and a probe (2). The device is characterized in that the front panel of the controller (1) is provided with an LCD display screen (3) and a selection button (4), and the internal part is provided with a single-chip microcomputer (5). The probe (2) comprises a light-emitting source (6), a sensor (7) and a shielding cover (8). The light-emitting source (6) emits detection light to an object to be detected. The sensor (7) is used for receiving reflection light rays of the object to be detected and generating an electric signal corresponding to the color of the object to be detected according to light parameters of reflection light, digital values of color light intensity are obtained via amplification, filtering and analog-to-digital conversion and inputted to the single-chip microcomputer (5) so that comparison and identification of the numerical values are completed, and identification results are displayed on the LCD display screen (3). The detection light source is monochromatic light so that the requirement for the sensor is reduced, detection elements are simple and cost is low; and meanwhile, only the electric signal corresponding to monochromatic reflection light needs to be processed in color identification so that operation process is simplified and realization is easy.

Description

A kind of LED-based color identification device

Technical field

The utility model relates to color identification field, is specifically related to a kind of LED-based color identification device.

Background technology

Using electronic technology to realize color recognition is a technology at development, and its application is constantly expanded, and color detection instrument has been applied in the color management field of following four major trades: weaving, clothes, dyeing; Plastic cement, electronic product industry; Paint, ink industry; Printing, paper product manufacturing.The emerging industry such as camera detection, photography, school instruction also has employing by Laboratory Instruments.But on market, these color detection instruments are mainly for commercial Application, with high costs, and its range of application is restricted." a kind of Color Recognition System " patented technology of CN202734965U bulletin, adopt white light source to be irradiated on testee, utilize color sensor that the light signal of body surface reflection is converted into digital signal and sends to single-chip microcomputer to carry out data processing, obtain HIS value and the rgb value of different colours pattern, and send to LCD display to carry out numerical value demonstration.That is to say that the prior art is used white light source as probe source, because white is tertiary colour, need to detect respectively the content of three primary colours to its reflected light, the prior art is used the color sensor TSC320 of three primary colours sensitivity is received to reflected light for this reason, and further the testing result obtaining is carried out to analyzing and processing, calculate the three primary colours content in reflected light, thereby carry out color judgement.The defect of this utility model is: its analytic operation process more complicated; Have relatively high expectations to producing the device of white light source and receiving catoptrical color sensor, production difficulty is large, and cost is high.

Utility model content

For the above-mentioned deficiency of prior art, the technical problems to be solved in the utility model is a kind of LED-based color identification device of design.

The technical scheme that solves the problems of the technologies described above employing is: a kind of LED-based color identification device, comprise controller and probe, and on described controller front panel, LCD display and selection key are installed, inside is provided with single-chip microcomputer; Described probe comprises light emitting source, sensor and radome; Described light emitting source sends detection light to object under test, sensor is for receiving the reflection ray of object under test, and produce and the corresponding electric signal of determinand color according to catoptrical optical parameter, obtain the digital value of color of light intensity through amplification, filtering, analog to digital conversion, input single-chip microcomputer completes the relative discern of numerical value, recognition result is presented in LCD display, and this process starts different operating by selection key and realizes.

Described light emitting source is four super brightness monochromatic LEDs, is respectively red, yellow, blue and green, and interval is on the circumference being equidistantly evenly arranged in take sensor as the center of circle one by one; The light on and off of four LEDs are controlled respectively by single-chip microcomputer, light successively in turn and irradiate by yellow, red, green, blue order.

The beneficial effects of the utility model are: probe of the present utility model adopts can send Huang, four kinds of monochromatic light emitting sources of red, green, blue, by monochromatic reflection, use sensor sequentially to detect, and obtain corresponding electrical quantity.Because probe source is monochromatic light, therefore the requirement of sensor is minimized, therefore detecting element of the present utility model is simple, with low cost; And the utility model color when identification only need to process for four kinds of monochromatic electric signal corresponding to reflection of light light of surveying, its calculating process is simplified compared to existing technology, is easy to realize.

accompanying drawing explanation

Fig. 1 is the utility model structural representation.

Fig. 2 is the cross sectional representation of the utility model probe.

Fig. 3 is the utility model color recognition principle block diagram.

embodiment

The utility model is described in further detail below in conjunction with embodiment and with reference to accompanying drawing: referring to Fig. 1, this LED-based color identification device, comprise controller 1 and probe 2, it is characterized in that: on described controller 1 front panel, LCD display 3 and selection key 4 are installed, inside is provided with single-chip microcomputer 5; Described probe 2 comprises light emitting source 6, sensor 7 and radome 8; Described light emitting source 6 sends detection light to object under test, sensor 7 is for receiving the reflection ray of object under test, and produce and the corresponding electric signal of determinand color according to catoptrical optical parameter, obtain the digital value of color of light intensity through amplification, filtering, analog to digital conversion, input single-chip microcomputer 5 completes the relative discern of numerical value, recognition result is presented in LCD display 3, and this process starts different operating by selection key 4 and realizes.

Described single-chip microcomputer 5, for completing the storage of Standard Colors parameter, to gathering the contrast computing of numerical value, obtains the color recognition result of determinand.

Referring to Fig. 2, described light emitting source 6 is four super brightness monochromatic LEDs, is respectively red, yellow, blue and green, and interval is and is equidistantly evenly arranged in sensor one by one, on 7 circumference that are the center of circle; The light on and off of four LEDs are controlled respectively by single-chip microcomputer 5, light successively in turn and irradiate by yellow, red, green, blue order.

Described sensor 7 is silicon photocell, can produce and the corresponding electric signal of determinand color according to catoptrical optical parameter.

Described radome 8 can effectively stop extraneous bias light, improves the antijamming capability of system.

Referring to Fig. 3, when the work of this device, by selection key 4 start-up routines, light monochromatic light LED, make transmitting illuminant impinge perpendicularly on testee surface.The light on and off of four super brightness monochromatic LEDs are controlled respectively by single-chip microcomputer 5, and circulation is sequentially lighted on request.For example first light yellow light LED, and keep certain hour, during this period, sensor 7 once gathers reflective light intensity, and subsequent conditioning circuit carries out keeping after amplification filtering analog-to-digital conversion process to signal simultaneously, and wait single-chip microcomputer 5 is processed; Then extinguish, postpone a period of time, light red LED, carry out successively by same step.After four LEDs are all worked in order, complete collection period one time.The color recognition result finally drawing exports to LCD display 3 and shows.In order more effectively to carry out color identification, adopt single-chip microcomputer 5 to complete the judgement comparison to gathering numerical value, the data twi-read that sensor 7 is gathered, and contrast with the standard value of setting, be subordinate to Classification and Identification according to the close object of color, to improve accuracy of identification and reliability.

Claims

1. a LED-based color identification device, comprise controller (1) and probe (2), it is characterized in that: LCD display (3) and selection key (4) are installed on described controller (1) front panel, and inside is provided with single-chip microcomputer (5); Described probe (2) comprises light emitting source (6), sensor (7) and radome (8); Described light emitting source (6) sends detection light to object under test, sensor (7) is for receiving the reflection ray of object under test, and produce and the corresponding electric signal of determinand color according to catoptrical optical parameter, obtain the digital value of color of light intensity through amplification, filtering, analog to digital conversion, input single-chip microcomputer (5) completes the relative discern of numerical value, it is upper that recognition result is presented at LCD display (3), and this process starts different operating by selection key (4) and realizes.

2. the LED-based color identification device of one as claimed in claim 1, it is characterized in that described light emitting source (6) is four super brightness monochromatic LEDs, be respectively red, yellow, blue and green, interval is and is equidistantly evenly arranged in take sensor (7) on the circumference in the center of circle one by one; The light on and off of four LEDs are controlled respectively by single-chip microcomputer (5), light successively in turn and irradiate by yellow, red, green, blue order.