CN109752320B - Multi-band rapid nondestructive strawberry freshness detection device - Google Patents
Multi-band rapid nondestructive strawberry freshness detection device Download PDFInfo
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- CN109752320B CN109752320B CN201910160429.XA CN201910160429A CN109752320B CN 109752320 B CN109752320 B CN 109752320B CN 201910160429 A CN201910160429 A CN 201910160429A CN 109752320 B CN109752320 B CN 109752320B
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- 235000016623 Fragaria vesca Nutrition 0.000 title claims abstract description 29
- 235000011363 Fragaria x ananassa Nutrition 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title claims description 26
- 240000009088 Fragaria x ananassa Species 0.000 title 1
- 241000220223 Fragaria Species 0.000 claims abstract description 32
- 238000009659 non-destructive testing Methods 0.000 claims abstract description 10
- 230000004298 light response Effects 0.000 claims description 6
- 238000002835 absorbance Methods 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000011895 specific detection Methods 0.000 claims description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000012546 transfer Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 4
- 235000021012 strawberries Nutrition 0.000 description 4
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000012055 fruits and vegetables Nutrition 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a multiband rapid nondestructive testing strawberry freshness device, wherein an opening is formed in the bottom of a camera bellows, and a light source and a light detector are positioned in the camera bellows; the conveyer belt is located the camera bellows below, is equipped with a plurality of sample holders that set gradually along the direction of transfer on the conveyer belt, and elevating system is located the camera bellows below, elevating system is used for with the sample holder that is located the opening below rises, makes the sample holder follow the opening stretches into in the camera bellows. According to the multi-band rapid nondestructive testing strawberry freshness device with the optimal design, samples to be tested are sequentially sent into the camera bellows through the conveyor belt to be tested, multi-position multi-angle testing of strawberry samples with different shape and sizes is achieved in the camera bellows through the cooperation of the lifting mechanism and the optical detector, so that the strawberry freshness is tested uninterruptedly and massively, the testing speed is high, and the testing precision is greatly improved.
Description
Technical Field
The invention relates to the field of fruit and vegetable freshness detection, in particular to a multi-band rapid nondestructive strawberry freshness detection device.
Background
Strawberry is one of fruits with high nutritive value, and is rich in various vitamins, pectin, water and other nutritive elements. However, it is difficult for strawberries to maintain freshness during storage. Once stored for too long, the nutrient elements in the strawberries are seriously lost, and substances harmful to human bodies are even produced. The conventional strawberry freshness detection method at present mainly depends on the vision and smell of people, has strong subjectivity, can easily generate misjudgment, and cannot meet the detection requirements. In recent years, the spectrum technology has been well developed in the rapid nondestructive detection of fruit and vegetable quality, and the detection speed can meet the detection requirement, but at present, a strawberry freshness detection device based on the principle is not formed yet, and cannot be applied to the actual environment for detection.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a multi-band rapid nondestructive testing device for strawberry freshness.
The invention provides a multi-band rapid nondestructive testing strawberry freshness device, which comprises: the device comprises a camera bellows, a conveyor belt, a lifting mechanism, a light detector and a light source;
the bottom of the camera bellows is provided with an opening, the light source and the light detector are positioned in the camera bellows;
The conveyer belt is located the camera bellows below, is equipped with a plurality of sample holders that set gradually along the direction of transfer on the conveyer belt, and elevating system is located the camera bellows below, elevating system is used for with the sample holder that is located the opening below rises and makes the sample holder stretches into in the camera bellows from the opening.
Preferably, the conveyor belt is arranged horizontally.
Preferably, a plurality of sample mounting positions are arranged on the conveyor belt, each mounting position is provided with a mounting opening, each sample rack is detachably mounted in each mounting opening, the lifting mechanism comprises a lifting table, and the lifting table is positioned below the conveyor belt.
Preferably, a plurality of light detectors are included, the plurality of light detectors being located on the same horizontal plane.
Preferably, the photodetector employs one or more of an ultraviolet photodiode, a visible light PIN photodiode, or an InGaAs PIN photodiode.
Preferably, the side wall of the camera bellows is provided with a feeding door and a discharging door which are sequentially arranged along the conveying direction of the conveying belt.
Preferably, the device also comprises a height sensor, wherein the height sensor is positioned in the camera bellows and positioned at one side of the feeding door for detecting the height of the sample.
Preferably, the photoelectric sensor is located in the camera bellows and above the light detector, the photoelectric sensor comprises a light emitting unit and a light receiving unit, a plurality of reflecting plates matched with the photoelectric sensor are arranged on the conveyor belt, each reflecting plate is located on one side of one sample frame, and the conveyor belt is connected with the photoelectric sensor and used for conveying samples according to detection signals of the photoelectric sensor.
Preferably, the light source employs a narrow band linewidth tunable laser.
In the invention, the provided multi-band rapid nondestructive testing device for the freshness of strawberries has the advantages that the bottom of a camera bellows is opened, and a light source and a light detector are positioned in the camera bellows; the conveyer belt is located the camera bellows below, is equipped with a plurality of sample holders that set gradually along the direction of transfer on the conveyer belt, and elevating system is located the camera bellows below, elevating system is used for with the sample holder that is located the opening below rises and makes the sample holder stretches into in the camera bellows from the opening. According to the multi-band rapid nondestructive testing strawberry freshness device with the optimal design, samples to be tested are sequentially sent into the camera bellows through the conveyor belt to be tested, multi-position multi-angle testing of strawberry samples with different shape and sizes is achieved in the camera bellows through the cooperation of the lifting mechanism and the optical detector, so that the strawberry freshness is tested uninterruptedly and massively, the testing speed is high, and the testing precision is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a multi-band rapid nondestructive testing device for strawberry freshness.
Detailed Description
Fig. 1 is a schematic structural diagram of a multi-band rapid nondestructive strawberry freshness testing device according to the present invention.
Referring to fig. 1, the multi-band rapid nondestructive testing device for strawberry freshness provided by the invention comprises: the light source comprises a camera bellows 1, a conveyor belt 2, a lifting mechanism, a light detector 3 and a light source 4;
the bottom of the camera bellows 1 is provided with an opening, the light source 4 and the light detector 3 are positioned in the camera bellows 1;
The conveyer belt 2 is located camera bellows 1 below, is equipped with a plurality of sample holders 6 that set gradually along the direction of transfer on the conveyer belt 2, and elevating system is located camera bellows 1 below, elevating system is used for with the sample holder 6 that is located the opening below rises make sample holder 6 follow the opening stretches into in the camera bellows 1.
In the embodiment, the provided multi-band rapid nondestructive testing device for the freshness of the strawberries has the advantages that the bottom of a camera bellows is opened, and a light source and a light detector are positioned in the camera bellows; the conveyer belt is located the camera bellows below, is equipped with a plurality of sample holders that set gradually along the direction of transfer on the conveyer belt, and elevating system is located the camera bellows below, elevating system is used for with the sample holder that is located the opening below rises and makes the sample holder stretches into in the camera bellows from the opening. According to the multi-band rapid nondestructive detection strawberry freshness device with the optimal design, samples to be detected are sequentially sent into the camera bellows through the conveyor belt to be detected, multi-position multi-angle detection of the strawberry samples with different shape and sizes is achieved in the camera bellows through the cooperation of the lifting mechanism and the optical detector, the influence of external environment light on detection results is avoided, therefore, the strawberry freshness is detected uninterruptedly and in a large quantity, the detection speed is high, and the detection precision is greatly improved.
In the embodiment of the conveyor belt, the conveyor belt 2 is arranged horizontally.
In a further specific arrangement mode, a plurality of sample mounting positions are arranged on the conveyor belt 2, each mounting position is provided with a mounting opening, each sample rack 6 is detachably mounted in each mounting opening, the lifting mechanism comprises a lifting table 5, and the lifting table 5 is positioned below the conveyor belt 2; when the sample rack works, the lifting platform ascends to pass through the mounting opening to push the sample rack to ascend into the camera bellows.
In other specific embodiments, the detection device comprises a plurality of light detectors 3, wherein the light detectors 3 are positioned on the same horizontal plane, so that the detection of the strawberry samples at the same height and different angles is realized.
In a specific alternative to the photodetector, the photodetector 3 employs one or more of an ultraviolet photodiode, a visible light PIN photodiode, or an indium gallium arsenide PIN photodiode.
In the concrete design mode of camera bellows, camera bellows 1 lateral wall is equipped with feed gate and the ejection of compact door that arranges in proper order along conveyer belt 2 direction of transfer, and the sample detects along with the conveyer belt gets into the camera bellows from the feed gate, then sends out through the ejection of compact door, and the camera bellows covers in the conveyer belt top during detection, further reduces the influence of ambient light to testing result.
In a further specific embodiment, the device further comprises a height sensor 7, wherein the height sensor 7 is positioned in the camera bellows 1 and positioned at one side of the feed gate and used for detecting the height of a sample, the height of the sample to be detected entering the camera bellows is detected through the height sensor, and accordingly the lifting mechanism adjusts the lifting position of the sample rack according to the detected height of the sample, and the sample is positioned in the detection section of the optical detector.
In other specific embodiments, the photoelectric sensor 9 is positioned in the camera bellows 1 and above the light detector 3, the photoelectric sensor 9 comprises a light emitting unit and a light receiving unit, a plurality of reflecting plates 8 matched with the photoelectric sensor 9 are arranged on the conveyor belt 2, each reflecting plate 8 is positioned on one side of one sample frame 6, and the conveyor belt 2 is connected with the photoelectric sensor 9 and used for conveying samples according to detection signals of the photoelectric sensor 9; when the sample frame reaches the position right above the lifting table, the light signals emitted by the light emitting unit irradiate the reflecting plate, the light receiving unit receives the light signals reflected by the reflecting plate, and the conveying belt stops conveying at the moment.
In the light source selection mode, the light source 4 adopts a narrow-band linewidth tunable laser which consists of three narrow-band laser systems, the wave band ranges of which are respectively 350-550nm, 550-700nm and 700-1100nm, so as to ensure the detection effect of the light detector.
In a specific detection mode of the multi-band rapid nondestructive detection strawberry freshness device of the embodiment, the steps are as follows:
Firstly, placing a sample to be detected on a sample rack of a conveyor belt;
Step two, when the correction object reaches the position right above the lifting platform, the conveying belt stops conveying at the moment, the lifting platform is started, when the sample to be detected rises to the height of the light detector, the light source and the light detector are started, the light response intensity vector of the sample is measured in three sections, the average light response intensity vector is calculated to be Lwn, and after the measurement is finished, the lifting platform returns to the original position;
And thirdly, continuously moving the conveyor belt, conveying the sample to be detected to a position right above the lifting table, and measuring and obtaining an average light response intensity vector Ln of the next strawberry sample according to the second step.
Step four, according to the formulaThe absorbance Abs of the strawberry sample was calculated, so that the corresponding freshness was obtained from the light absorbance.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. A multi-band rapid non-destructive testing strawberry freshness device, comprising: the device comprises a camera bellows (1), a conveyor belt (2), a lifting mechanism, a light detector (3) and a light source (4);
the bottom of the camera bellows (1) is provided with an opening, and the light source (4) and the light detector (3) are positioned in the camera bellows (1);
The conveying belt (2) is positioned below the camera bellows (1), a plurality of sample frames (6) which are sequentially arranged along the conveying direction are arranged on the conveying belt (2), the lifting mechanism is positioned below the camera bellows (1), and the lifting mechanism is used for lifting the sample frames (6) positioned below the opening to enable the sample frames (6) to extend into the camera bellows (1) from the opening;
The conveyor belt (2) is horizontally arranged;
a plurality of sample mounting positions are arranged on the conveyor belt (2), each mounting position is provided with a mounting opening, each sample rack (6) is detachably mounted in each mounting opening, the lifting mechanism comprises a lifting table (5), and the lifting table (5) is positioned below the conveyor belt (2);
Comprises a plurality of light detectors (3), wherein the light detectors (3) are positioned on the same horizontal plane;
The photodetector (3) adopts one or more of an ultraviolet photodiode, a visible light PIN photodiode or an indium gallium arsenic PIN photodiode;
The side wall of the camera bellows (1) is provided with a feeding door and a discharging door which are sequentially arranged along the conveying direction of the conveying belt (2);
the device also comprises a height sensor (7), wherein the height sensor (7) is positioned in the camera bellows (1) and positioned at one side of the feed gate for detecting the height of the sample;
The photoelectric sensor is positioned in the camera bellows (1) and above the light detector (3), the photoelectric sensor (9) comprises a light emitting unit and a light receiving unit, a plurality of reflecting plates (8) matched with the photoelectric sensor (9) are arranged on the conveyor belt (2), each reflecting plate (8) is positioned on one side of one sample frame (6), and the conveyor belt (2) is connected with the photoelectric sensor (9) and used for conveying samples according to detection signals of the photoelectric sensor;
the light source (4) adopts a narrow-band linewidth tunable laser;
In the selection mode of the light source, the light source adopts a narrow-band linewidth tunable laser which consists of three narrow-band laser systems, wherein the wave band ranges of the laser systems are 350-550nm, 550-700nm and 700-1100nm respectively;
In a specific detection mode of the multi-band rapid nondestructive detection strawberry freshness device, the steps are as follows:
Firstly, placing a sample to be detected on a sample rack of a conveyor belt;
Step two, when the correction object reaches the position right above the lifting platform, the conveying belt stops conveying at the moment, the lifting platform is started, when the sample to be detected rises to the height of the light detector, the light source and the light detector are started, the light response intensity vector of the sample is measured in three sections, the average light response intensity vector is calculated to be Lwn, and after the measurement is finished, the lifting platform returns to the original position;
Step three, the conveyor belt continues to move, the sample to be detected is conveyed to a position right above the lifting table, and the average light response intensity vector Ln of the next strawberry sample is measured and obtained according to the step two;
Step four, according to the formula:
the absorbance Abs of the strawberry sample was calculated, so that the corresponding freshness was obtained from the light absorbance.
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| CN201910160429.XA CN109752320B (en) | 2019-03-04 | 2019-03-04 | Multi-band rapid nondestructive strawberry freshness detection device |
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| CN115388813A (en) * | 2022-09-29 | 2022-11-25 | 江西凯威箱包有限公司 | Case and bag wheel axiality detection device for case and bag processing |
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| CN210982205U (en) * | 2019-03-04 | 2020-07-10 | 安徽大学 | A multi-band rapid nondestructive testing device for strawberry freshness |
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| JP2002365219A (en) * | 2001-06-06 | 2002-12-18 | Takara Keiki Seisakusho:Kk | Conveyance treatment apparatus |
| JP2005043315A (en) * | 2003-07-25 | 2005-02-17 | Yanmar Co Ltd | Nondestructive quality determination apparatus for agricultural product |
| JP3576158B2 (en) * | 2003-09-16 | 2004-10-13 | 株式会社クボタ | Agricultural product internal quality evaluation device |
| CN104749190B (en) * | 2015-04-02 | 2017-08-08 | 华中农业大学 | The online vision inspection apparatus and its method of a kind of birds, beasts and eggs face crack |
| CN205719951U (en) * | 2016-05-24 | 2016-11-23 | 西北农林科技大学 | Detect black box and utilize the lossless quick detection equipment of Apple Mould Core of this detection black box |
| CN206772821U (en) * | 2017-03-01 | 2017-12-19 | 花锦 | A kind of device of the lossless quick detection of raw meat freshness |
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