CN100547392C - Be used for the multi-channel laser detection system that fruit internal quality detects - Google Patents
Be used for the multi-channel laser detection system that fruit internal quality detects Download PDFInfo
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- CN100547392C CN100547392C CNB2007101569202A CN200710156920A CN100547392C CN 100547392 C CN100547392 C CN 100547392C CN B2007101569202 A CNB2007101569202 A CN B2007101569202A CN 200710156920 A CN200710156920 A CN 200710156920A CN 100547392 C CN100547392 C CN 100547392C
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- reflective mirror
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- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 description 8
- 230000003595 spectral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a kind of multi-channel laser detection system that fruit internal quality detects that is used for.Motor, the chassis, by the motor supporting, support on the chassis respectively for first lens, second lens, the 3rd lens and sensor, the supporting of first lens, the supporting of second lens, supporting of the 3rd lens and sensor supporting are coaxially installed on casing; Light shield and reflective mirror are installed on the turning axle of motor; Objective table is installed in the bottom of casing; A plurality of laser instruments are installed on the chassis; Laser beam and motor rotation axis center line angle are 90 degree, and its center overlaps with the intersection point of motor rotation axis center line and reflective mirror.The laser instrument of a plurality of different-wavebands is installed on the chassis radially, and the laser beam that laser instrument sends is radiated on the reflective mirror by the logical light mouth of light shield on light shield top.The angle on motor rotation axis center line and reflective mirror plane is 45 degree.Detection light beam of the present invention incides in the fruit with bigger diameter, to obtain more fully fruit quality information.
Description
Technical field
The present invention relates to a kind of multi-channel laser detection system that fruit internal quality detects that is used for.
Background technology
Classification is one of important means that commercialization was handled after agricultural product were adopted, and to strengthening agricultural product commodity market competitive power, that increases economic efficiency is significant.
It is the basis of classification that the index of quality detects.In quality of agricultural product index context of detection, machine vision technique has been applied to the detection quality of agricultural product index of external sort.And near-infrared spectrum technique has also obtained application in the detection of inside quality index.
Utilize the fruit spectral signature to detect the fruit internal quality index method and can be divided into reflectometry and transmission beam method.
Reflectometry: detect light by pick-up unit to detecting the fruit emission during detection, pick-up unit obtains fruit internal quality information at homonymy detection of reflected light by analysis.
Transmission beam method: detect light by pick-up unit to detecting the fruit emission during detection, pick-up unit detects transmitted ray at opposite side, obtains fruit internal quality information by analysis.
But in above-mentioned two kinds of methods, the beam diameter that detects light is usually very little, detects the information that light can only be represented a part of fruit internal structure, causes error.
Summary of the invention
The object of the present invention is to provide a kind of multi-channel laser detection system that fruit internal quality detects that is used for, detect light beam and incide in the fruit, to obtain more fully fruit quality information with bigger diameter.
Technical scheme of the present invention is as follows:
Comprise motor, absolute encoder, light shield, reflective mirror, the laser instrument of a plurality of different-wavebands, chassis, first lens, second lens, the 3rd lens, sensor, objective table and control system; Wherein:
1) in casing, is provided with motor, chassis, first lens, second lens, objective table, the 3rd lens and sensor successively; Absolute encoder is housed on motor output shaft, light shield and reflective mirror, reflective mirror is positioned at light shield; Be positioned at the first-class laser instrument that is arranged with a plurality of different-wavebands in chassis of the outer same circumference of light shield, center chassis has aperture; Light shield has Tong Guangkou, and the laser beam that laser instrument sends can be radiated on the reflective mirror by the logical light mouth of light shield; The angle on motor rotation axis center line and reflective mirror plane is 45 degree, and laser beam and motor rotation axis center line angle are 90 degree; Motor output shaft, light shield, the chassis, first lens, second lens, the 3rd lens and center sensor line are coaxial;
2) absolute encoder, sensor all is connected with control system with motor.
Described control system comprises interface convertor, single-chip microcomputer, display, starting switch, analog to digital converter, amplifier and motor controller; Absolute encoder is connected on the single-chip microcomputer by interface convertor, and sensor is connected on the single-chip microcomputer by amplifier and analog to digital converter, and display is connected with single-chip microcomputer with starting switch, and single-chip microcomputer links to each other with motor by motor controller.
Described laser instrument begins to number in the counterclockwise direction from the right horizontal level S point, is followed successively by 0,1,2 ..., be called passage 0, passage 1, passage 2 ...; The absolute encoder output signal is corresponding with above-mentioned channel number.
The invention has the beneficial effects as follows:
Detect light beam and incide in the fruit, to obtain more fully fruit quality information with bigger diameter.
Description of drawings
Fig. 1 is a section of structure of the present invention.
Fig. 2 is the assembly relation synoptic diagram on laser instrument, light shield and chassis.
Fig. 3 is the control system structural representation.
Fig. 4 is the testing process synoptic diagram.
Fig. 5 is the light shield front view.
Fig. 6 is the A-A view of Fig. 5.
Fig. 7 is a circuit logic synoptic diagram among the embodiment.
Among the figure: 1, motor, 2, absolute encoder, 3, reflective mirror, 4, laser instrument, 5, the chassis, 6, first lens, 7, second lens, 8, the 3rd lens, 9, sensor, 10, the sensor supporting, 11, the supporting of the 3rd lens, 12, objective table, 13, the supporting of second lens, 14, laser beam, 15, the supporting of first lens, 16, the chassis supporting, 17, the motor supporting, 18, casing, 19, interface convertor, 20, single-chip microcomputer, 21, display, 22, starting switch, 23, analog to digital converter, 24, amplifier, 25, fruit, 26, light shield, 27, light shield leads to light mouth, 28, motor controller.
Embodiment
As shown in figures 1 and 3, it comprises motor 1 the present invention, absolute encoder 2, reflective mirror 3, laser instrument 4, chassis 5, the first lens, 6, the second lens, 7, the three lens 8, sensor 9, sensor supporting 10, the three lens supporting 11, objective table 12, the second lens supporting 13, first lens supporting 15, chassis supporting 16, motor supporting 17, casing 18, interface convertor 19, single-chip microcomputer 20, display 21, starting switch 22, analog to digital converter 23, amplifier 24, light shield 26, motor controller 28.
As shown in Figure 1, motor 1, chassis 5, the first lens 6, by motor supporting 17, the chassis supports 16 respectively for second lens, 7, the three lens 8 and sensor 9, supporting 13, the three lens supporting 11 of first lens supporting, 15, the second lens and sensor supporting 10 are installed in the bottom of casing 18.Reflective mirror 3 is installed in the turning axle of motor 1 and does not hold.Absolute encoder 2 is installed on the motor 1.A plurality of laser instruments 4 are installed on the chassis 5.Objective table 12 is installed in the bottom of casing 18.Light shield 26 is installed on motor 1 turning axle.
As Fig. 1, Fig. 2, Fig. 5, shown in Figure 6, on motor 1 output shaft, absolute encoder 2 is housed, light shield 26 and reflective mirror 3, reflective mirror 3 is positioned at light shield 26; Be positioned at the chassis 5 first-class laser instruments 4 that are arranged with a plurality of different-wavebands of the same circumference outside the light shield 26,5 centers, chassis have aperture; Light shield has logical light mouth 27, and the laser beam 14 that laser instrument 4 sends can be radiated on the reflective mirror 3 by the logical light mouth 27 of light shield 26; The angle on motor 1 rotating shaft center's line and reflective mirror 3 planes is 45 degree, and laser beam 14 is 90 degree with motor 1 rotating shaft center wire clamp angle; Motor 1 output shaft, light shield 26, chassis 5, the first lens 6, the second lens, 7, the three lens 8 and sensor 9 center lines are coaxial; Absolute encoder 2, sensor 9 all is connected with control system with motor 1.
As shown in Figure 3, described control system comprises interface convertor 19, single-chip microcomputer 20, display 21, starting switch 22, analog to digital converter 23, amplifier 24 and motor controller 28; Absolute encoder 2 is connected on the single-chip microcomputer 20 by interface convertor 19, sensor 9 is connected on the single-chip microcomputer 20 by amplifier 24 and analog to digital converter 23, display 21 is connected with single-chip microcomputer 20 with starting switch 22, and single-chip microcomputer 20 links to each other with motor 1 by motor controller 28.
As shown in Figure 2, described laser instrument 4 begins to number in the counterclockwise direction from the right horizontal level S point, is followed successively by 0,1,2 ..., be called passage 0, passage 1, passage 2 ...; Absolute encoder 2 output signals are corresponding with above-mentioned channel number.
As shown in Figure 4, the testing process of fruit internal quality is:
The user is placed on fruit 25 on the objective table 12, press starting switch 22 by the user, single-chip microcomputer 20 is by 1 rotation of motor controller 28 actuating motors, single-chip microcomputer 20 detects the output signal of absolute encoder 2, when the signal of absolute encoder 2 is 0, the laser beam 14 that No. 0 laser instrument 4 sends is radiated on the reflective mirror 3 by the logical light mouth 27 of light shield on light shield 26 tops, laser beam 14 is through first lens 6, second lens 7, fruit 25 and the 3rd lens 8 arrive sensor 9, are converted to electric signal by sensor 9, after amplifier 24 amplifies, convert digital signal to by analog to digital converter 23, be input to single-chip microcomputer 20 as the spectral value of passage 0.Then, single-chip microcomputer 20 obtains the spectral value of other passage successively.When the spectral value of all passages all obtain finish after, single-chip microcomputer 20 calculates the inside quality desired value of current fruit 20, and shows on display 21.
Be an embodiment below:
First lens 6 adopt negative lens, and second lens 7 and the 3rd lens 8 all adopt positive lens.
As shown in Figure 7, motor 1 adopts ZY3-JA type direct-flow deceleration electric motor, and correspondingly, motor controller 28 adopts T2801 (C2331 type triode), resistance R 2801, and resistance R 2802, diode D2801 and diode D2802 form.Absolute encoder 2 adopts the absolute encoder of the parallel Gray code output of GD32 type, and it is the exclusion of 10K Ω that interface convertor 19 on the other side adopts resistance value.Sensor 9 adopts the PDC254d-PR photodiode.Single-chip microcomputer 20 adopts AT89C51 to form as CPU.Display 21 adopts HS12232-9 type LCD display.Starting switch 22 adopts resistance R 2201, resistance R 2202, and K switch 2201 and capacitor C 2201 are formed.Analog to digital converter 23 adopts TLC4541 type 16 bit A/D converters.Amplifier 24 adopts CA3130 integrated operational amplifier and resistance R 2401, and R2402 and R2403 form.
Claims (2)
1. one kind is used for the multi-channel laser detection system that fruit internal quality detects, it is characterized in that: comprise motor (1), absolute encoder (2), light shield (26), reflective mirror (3), the laser instrument of a plurality of different-wavebands (4), chassis (5), first lens (6), second lens (7), the 3rd lens (8), sensor (9), objective table (12) and control system; Wherein:
1) in casing (18), is provided with motor (1) successively, chassis (5), first lens (6), second lens (7), objective table (12), the 3rd lens (8) and sensor (9); On motor (1) output shaft, absolute encoder (2) is housed, light shield (26) and reflective mirror (3), reflective mirror (3) is positioned at light shield (26); Be positioned at the first-class laser instrument (4) that is arranged with a plurality of different-wavebands in chassis (5) of the outer same circumference of light shield (26), center, chassis (5) has aperture; Light shield has Tong Guangkou (27), and the laser beam (14) that laser instrument (4) sends can be radiated on the reflective mirror (3) by the Tong Guangkou (27) of light shield (26); The angle on motor (1) rotating shaft center's line and reflective mirror (3) plane is 45 degree, and laser beam (14) is 90 degree with motor (1) rotating shaft center wire clamp angle; Motor (1) output shaft, light shield (26), chassis (5), and first lens (6), second lens (7), the 3rd lens (8) and sensor (9) center line are coaxial; Described first lens are negative lens, and second lens and the 3rd lens are positive lens;
2) absolute encoder (2), sensor (9) all is connected with control system with motor (1).
2. a kind of multi-channel laser detection system that fruit internal quality detects that is used for according to claim 1, it is characterized in that: described control system comprises interface convertor (19), single-chip microcomputer (20), display (21), starting switch (22), analog to digital converter (23), amplifier (24) and motor controller (28); Absolute encoder (2) is connected on the single-chip microcomputer (20) by interface convertor (19), sensor (9) is connected on the single-chip microcomputer (20) by amplifier (24) and analog to digital converter (23), display (21) is connected with single-chip microcomputer (20) with starting switch (22), and single-chip microcomputer (20) links to each other with motor (1) by motor controller (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101569202A CN100547392C (en) | 2007-11-20 | 2007-11-20 | Be used for the multi-channel laser detection system that fruit internal quality detects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101569202A CN100547392C (en) | 2007-11-20 | 2007-11-20 | Be used for the multi-channel laser detection system that fruit internal quality detects |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162203A CN101162203A (en) | 2008-04-16 |
| CN100547392C true CN100547392C (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101569202A Expired - Fee Related CN100547392C (en) | 2007-11-20 | 2007-11-20 | Be used for the multi-channel laser detection system that fruit internal quality detects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100547392C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526543B (en) * | 2009-03-30 | 2011-12-21 | 浙江大学 | Delivery tray for detecting internal quality of fruit |
| CN102519964B (en) * | 2011-12-14 | 2013-11-13 | 浙江大学 | Internal fruit quality information collecting method and device capable of overcoming influences of sizes and postures of fruits |
| CN103256952B (en) * | 2013-04-18 | 2015-06-03 | 中国农业大学 | Rotating and positioning device used for fruit detection |
| CN105043261A (en) * | 2015-09-01 | 2015-11-11 | 徐州工业职业技术学院 | Facility greenhouse photophobic crop stem and fruit size laser measuring equipment |
| JP6791214B2 (en) * | 2018-07-13 | 2020-11-25 | 横河電機株式会社 | Spectral analyzer |
-
2007
- 2007-11-20 CN CNB2007101569202A patent/CN100547392C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101162203A (en) | 2008-04-16 |
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Granted publication date: 20091007 Termination date: 20121120 |