CN108613951A - Portable fruit hardness non-destructive testing device and detection method - Google Patents
Portable fruit hardness non-destructive testing device and detection method Download PDFInfo
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- CN108613951A CN108613951A CN201810236649.1A CN201810236649A CN108613951A CN 108613951 A CN108613951 A CN 108613951A CN 201810236649 A CN201810236649 A CN 201810236649A CN 108613951 A CN108613951 A CN 108613951A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
Abstract
The invention discloses a kind of Portable fruit hardness non-destructive testing device and detection methods.It detects in shell, optic module is connect with probe, UV fluorescent lamp modules, halogen lamp module and spectrum data gathering module respectively, and probe end stretches out detection shell towards fruit, and probe carries out light emitting close to fruit surface and diffusing reflection receives；Fluorescence data and the spectroscopic data that diffuses are obtained by UV fluorescent lamp modules, halogen lamp resume module respectively, reference is carried out to fluorescence data and the spectroscopic data that diffuses and background correction pre-processes and obtains fluorescence spectral characteristic peak intensity and the spectral signature peak intensity that diffuses, fluorescence spectral characteristic peak intensity, the spectral signature that diffuses peak intensity and fruit hardness data structure model is recycled and is detected acquisition fruit hardness result.The present invention is small to be easy to portable, and detection process does not damage fruit, suitable live fruit hardness determination easy to operate, and application is wide, and there is larger field application to be worth.
Description
Technical field
The invention belongs to detection fields, and in particular to a kind of Portable fruit hardness non-destructive testing device and detection method.
Background technology
Hardness is a comprehensive physical index related with material density, eucaryotic cell structure and institutional framework.Hardness is evaluation
One of important indicator of fruit maturity.Currently, the detection of fruit hardness mainly uses subjective appreciation and instrumental test.Sense organ
It is strong to evaluate subjectivity, although large-scale Texture instrument detection method can accurately evaluate fruit hardness, processing routine is complicated, required profession
Cumbersome, installation cost is expensive, and detection speed is slow and with destructiveness, cannot be satisfied fruit storage field quick detection, field
The quick detection demand in field.The related constituent of fruit hardness is mainly the substances such as pectin, leaf green, the pectin substance of the hardness of fruit
Containing chemical bonds such as O-H, C-H, the wave bands light source such as near infrared light can be absorbed, and leaf green can be realized by fluorescence excitation and be examined
It surveys, therefore is theoretically feasible using the hardness of near-infrared diffusing reflection technology and fluorescence excitation technology detection fruit.Therefore
It realizes a kind of Portable fruit hardness non-destructive testing device, staff scene is facilitated to obtain fruit hardness data, the inspection that can be reduced
Survey cost, simplify testing process, improve fruit storage management, field field detection efficiency.
Some researchers have carried out some basic research to fruit hardness at present, develop some and examine scleroscopic dress
It sets.
1) there are a kind of fruit hardometers for the prior art, by pressure head graduation mark, lifting handle, rack, tightening knob etc.
Machine assembly constitutes measuring device and realizes fruit hardness determination；The measurement method is to damage detection mode, and measurement process can be damaged
Fruit；Measurement process is comparatively laborious, and professional is needed to operate.
2) there are a kind of sugar degree and rigidity detection devices, wherein hardness detecting unit to use compression spring for the prior art
Deformation is generated in fruit surface and displacement-capacitance sensor acquisition deformation quantity data calculate fruit hardness.If the measurement method is examined
The more soft peach of quality more crisp pear or quality is surveyed, compression spring, which measures hardness process, to cause fruit surface to generate
It weighs wounded, surface, which exists, to be easier to go bad in the fruit storing process weighed wounded；Compression spring makes for a long time there are mechanical aging factor
It is no longer identical to influence hardness determination accuracy with fruit surface effect stress when causing to measure.
Therefore, although traditional detection fruit hardness device can evaluate fruit hardness, measurement process is easy to produce fruit
Either the cumbersome installation cost of professional operation needed for measurement process processing routine complexity is expensive or detection speed is slow and has for raw damage
Destructiveness cannot be satisfied fruit storage field quick detection, the quick detection demand in field field.
Above method is difficult to use in scene and either lossless quick detection application or relies on of high cost there are step is more complex
Large-scale professional device the problems such as, it is therefore desirable to the detection device of new method.
Invention content
In order to solve the problems, such as background technology, the present invention propose a kind of Portable fruit hardness non-destructive testing device and
Detection method has important practical significance, and is capable of the hardness of Fast nondestructive evaluation fruit.
The technical solution adopted by the present invention is：
One, a kind of Portable fruit hardness non-destructive testing device：
The present invention include be mounted on detection shell in spectrum data gathering module, UV fluorescent lamp modules, halogen lamp module,
Optic module and probe, optic module connect with probe, UV fluorescent lamp modules, halogen lamp module and spectrum data gathering module respectively
It connects, probe end stretches out detection shell towards fruit, and probe carries out light emitting close to fruit surface and diffusing reflection receives.The present invention
UV fluorescent lamp modules and halogen lamp module simultaneously mounted on detection shell in, to fruit transmitting light carry out spectral detection.
UV fluorescent lamp modules, halogen lamp module send out fluorescence and white light respectively, probe are transferred to through optic module, by popping one's head in
It is irradiated to fruit to reflect, through being transferred to spectrum data gathering module by optic module after probe reception reflected light.
The optic module is four-way optic module.
Further include embeded processor circuit-board card module, touch screen module and the lithium battery mould being mounted in detection shell
Block, embeded processor circuit-board card module is separately connected UV fluorescent lamp modules and halogen lamp module realizes light source power supply and control
System, spectrum data gathering module are connected to embeded processor circuit-board card module, and lithium battery module is connected to embedded processing
Device circuit-board card module is powered, and embeded processor circuit-board card module connection touch screen module carries out display output.
The spectrum data gathering module is connected through optical filter with optic module.
Two, a kind of Portable fruit rigidity nondestructive testing method：
First, control opens UV fluorescent lamp modules and sends out fluorescence to probe, and fluorescent scattering excites instead on fruit surface
The fluorescence penetrated is received by probe again, and fluorescence reception signal is sent after spectrum data gathering module is extracted and obtains fluorescence data
To embeded processor circuit-board card module, closing UV is glimmering after embeded processor circuit-board card module stores fluorescence data
Light lamp module；
Then, control opens halogen lamp module and sends out white light to probe, and white light is scattered on fruit surface and is reflected to form
Diffuse and received again by probe, the extraction of diffusing reflection light receiving signal scape spectrum data gathering module, which obtains, to diffuse spectrum
Embeded processor circuit-board card module is sent to after data, embeded processor circuit-board card module stores diffusing reflection spectrum number
According to rear closing halogen lamp module；
Finally, reference is carried out to fluorescence data and the spectroscopic data that diffuses and background correction pretreatment obtains fluorescence
Spectral signature peak intensity and the spectral signature peak intensity that diffuses, recycling fluorescence spectral characteristic peak intensity, diffuse spectrum
Feature peak intensity builds model and be detected with fruit hardness data obtains fruit hardness result.
The method of the present invention passes through in fluorescence spectral characteristic peak intensity, the spectral signature that diffuses peak intensity and fruit hardness
Opening relationships builds model between three, and fruit hardness is obtained to detect.
The related constituent of fruit hardness is mainly the substances such as pectin, leaf green, the pectin substance of the hardness of fruit contain O-H,
The chemical bonds such as C-H can absorb the wave bands light source such as near infrared light, and leaf green can be realized by fluorescence excitation and be detected, the present invention
It is theoretically feasible to detect the hardness of fruit using near-infrared diffusing reflection technology and fluorescence excitation technology.
The present invention builds model and homing method, nonlinear method or linear method etc. specifically can be used.
All module for power supply of lithium battery module realization device.
After the spectrum data gathering module receives fluorescence and diffusing reflection light receiving signal, spectroscopic data is obtained, is led to
It crosses USB interface and is sent to embeded processor circuit-board card module.
The embeded processor circuit-board card module realizes that the control of UV fluorescent lamp modules, halogen lamp module control, is glimmering
Light and diffuse modal data acquisition reception, spectroscopic data reference and background correction pretreatment, fruit hardness calculation, touch screen circle
The function of face control.
The embedded system circuit-board card Module-embedding has the software that linux system is write.
The invention has the advantages that：
The present invention is small at low cost, easy to operate, detection process not damaged fruit, detect it is lossless quickly, avoid biography
Detection method of uniting is cumbersome, avoids the dedicated unit detection fruit hardness using price, and application is wide, have compared with
Big field application value.
Description of the drawings
Fig. 1 is apparatus of the present invention Organization Chart.
Fig. 2 is the work flow diagram of apparatus of the present invention.
Specific implementation mode
The present invention is further illustrated in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, the present invention includes the spectrum data gathering module 4 being mounted in detection shell, UV fluorescent lamp modules
2, halogen lamp module 3, optic module 9 and probe 1, optic module 9 respectively with probe 1, UV fluorescent lamp modules 2, halogen lamp module 3
It is connected with spectrum data gathering module 4, detection shell is stretched out towards fruit 10 in 1 end of probe, and the probe 1 when specific implementation is installed
On detection shell, probe 1 carries out light emitting close to fruit surface and diffusing reflection receives.
UV fluorescent lamp modules 2, halogen lamp module 3 send out fluorescence and white light respectively, and probe 1 is transferred to through optic module 9, by
Probe 1 is irradiated to fruit 10 and reflects, through being transferred to spectrum data gathering mould by optic module 9 after 1 reception reflected light of probe
Block 4.
Optic module 9 is four-way optic module, light that UV fluorescent lamp modules 2 and halogen lamp module 3 are sent out, by probe
1 light and the light of input spectrum data acquisition module 4 respectively occupy a channel.
Further include embeded processor circuit-board card module 5, touch screen module 6 and the lithium battery being mounted in detection shell
Module 7, embeded processor circuit-board card module 5 is separately connected UV fluorescent lamp modules 2 and halogen lamp module 3 realizes light source power supply
And control, spectrum data gathering module 4 are connected to embeded processor circuit-board card module 5, lithium battery module 7 is connected to insertion
Formula processor circuit board card module 5 is powered, and embeded processor circuit-board card module 5 connects touch screen module 1 and shown
Show output.
Spectrum data gathering module 4 is connected through optical filter 8 and optic module 9.
As shown in Fig. 2, the specific implementation course of work of the present invention is：
First, it is sent out to probe 1 by the control opening UV of embeded processor circuit-board card module 5 fluorescent lamp modules 2 glimmering
Light, fluorescent scattering excite the fluorescence of reflection to be received again by probe 1 on fruit surface, and fluorescence reception signal is adopted through spectroscopic data
The collection extraction of module 4 is sent to embeded processor circuit-board card module 5, embeded processor circuit after obtaining fluorescence data
Board card module 5 closes UV fluorescent lamp modules 2 after storing fluorescence data；
Then, opening halogen lamp module 3 is controlled by embeded processor circuit-board card module 5 and sends out white light to probe 1,
White light is scattered in 1 reception of being popped one's head in again that diffuses reflected to form on fruit surface, diffusing reflection light receiving signal scape spectrum
The extraction of data acquisition module 4 is sent to embeded processor circuit-board card module 5 after obtaining the spectroscopic data that diffuses, embedded
Processor circuit board card module 5 closes halogen lamp module 3 after storing the modal data that diffuses；
Fluorescence spectrum is obtained using aforesaid way processing for the sample fruit of known fruit hardness data in specific implementation
Data and the spectroscopic data that diffuses, the fruit hardness data of sample fruit are punctured by mechanical pressure probe using Texture instrument
Pericarp mode acquires acquisition, then to fluorescence data and is diffused by embeded processor circuit-board card module 5
Spectroscopic data carries out reference and background correction pretreatment obtains fluorescence spectral characteristic peak intensity and the spectral signature peak intensity that diffuses
Degree recycles fluorescence spectral characteristic peak intensity, the spectral signature that diffuses peak intensity and fruit hardness data to use multiple regression
Mode builds relational model.It is directed to the fruit to be measured of unknown fruit hardness data again, is gone forward side by side to fruit to be measured using relational model
Row detection obtains fruit hardness result, and fruit hardness result is sent to touch screen module 6 and carries out display output.
By above-mentioned each implementation steps and legend as it can be seen that the present invention it is small it is easy to operate, detection it is lossless quickly, it is not necessary to it is right
Detection sample is pre-processed, and there is larger field application to be worth.
Above-mentioned specific implementation mode is used for illustrating the present invention, rather than limits the invention, the present invention's
Any modification made to the present invention in spirit and scope of the claims and equivalent replacement are improved, use detection object instead
Deng both falling within protection scope of the present invention.
Claims (7)
1. a kind of Portable fruit hardness non-destructive testing device, it is characterised in that：It include the spectroscopic data in detection shell
Acquisition module (4), UV fluorescent lamp modules (2), halogen lamp module (3), optic module (9) and probe (1), optic module (9) point
It is not connect with probe (1), UV fluorescent lamp modules (2), halogen lamp module (3) and spectrum data gathering module (4), probe (1) end
Detection shell stretches out towards fruit (10) in portion, and probe (1) carries out light emitting close to fruit surface and diffusing reflection receives.
2. a kind of Portable fruit hardness non-destructive testing device according to claim 1, it is characterised in that：
The UV fluorescent lamp modules (2), halogen lamp module (3) send out fluorescence and white light respectively, are transferred to through optic module (9)
It pops one's head in (1), fruit (10) is irradiated to by probe (1) and is reflected, probe (1) passes through after receiving reflected light by optic module (9) biography
It is defeated to arrive spectrum data gathering module (4).
3. a kind of Portable fruit hardness non-destructive testing device according to claim 1, it is characterised in that：
The optic module (9) is four-way optic module.
4. a kind of Portable fruit hardness non-destructive testing device according to claim 1, it is characterised in that：
Further include embeded processor circuit-board card module (5), touch screen module (6) and the lithium battery being mounted in detection shell
Module (7), embeded processor circuit-board card module (5) is separately connected UV fluorescent lamp modules (2) and halogen lamp module (3) is realized
Light source power supply and control, spectrum data gathering module (4) are connected to embeded processor circuit-board card module (5), lithium battery mould
Block (7) is connected to embeded processor circuit-board card module (5) and is powered, and embeded processor circuit-board card module (5) is even
It connects touch screen module (1) and carries out display output.
5. a kind of Portable fruit hardness non-destructive testing device according to claim 1, it is characterised in that：
The spectrum data gathering module (4) is connected through optical filter (8) and optic module (9).
6. a kind of Portable fruit rigidity nondestructive testing method applied to claim 1 described device, it is characterised in that method packet
It includes：
First, control opens UV fluorescent lamp modules (2) and sends out fluorescence to probe (1), and fluorescent scattering is excited on fruit surface
The fluorescence of reflection is received by probe (1) again, and fluorescence reception signal extracts through spectrum data gathering module (4) and obtains fluorescence spectrum number
Embeded processor circuit-board card module (5) is sent to after, embeded processor circuit-board card module (5) stores fluorescence spectrum
UV fluorescent lamp modules (2) are closed after data；
Then, control opens halogen lamp module (3) and sends out white light to probe (1), and white light is scattered in institute's reflection on fruit surface
At diffuse and received again by probe (1), diffusing reflection light receiving signal scape spectrum data gathering module (4) extraction obtains unrestrained anti-
It is sent to embeded processor circuit-board card module (5) after penetrating light spectroscopic data, embeded processor circuit-board card module (5) is deposited
Halogen lamp module (3) is closed after storing up the modal data that diffuses；
Finally, reference is carried out to fluorescence data and the spectroscopic data that diffuses and background correction pretreatment obtains fluorescence spectrum
Feature peak intensity and the spectral signature peak intensity that diffuses, recycling fluorescence spectral characteristic peak intensity, diffuse spectral signature
Peak intensity is with fruit hardness data structure model and for detecting acquisition fruit hardness result.
7. a kind of Portable fruit rigidity nondestructive testing method according to claim 6, it is characterised in that：
The fruit hardness result is sent to touch screen module (6) and carries out display output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236649.1A CN108613951A (en) | 2018-03-21 | 2018-03-21 | Portable fruit hardness non-destructive testing device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236649.1A CN108613951A (en) | 2018-03-21 | 2018-03-21 | Portable fruit hardness non-destructive testing device and detection method |
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| Publication Number | Publication Date |
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| CN108613951A true CN108613951A (en) | 2018-10-02 |
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| CN201810236649.1A Pending CN108613951A (en) | 2018-03-21 | 2018-03-21 | Portable fruit hardness non-destructive testing device and detection method |
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|---|---|---|---|---|
| US20020011567A1 (en) * | 2000-03-13 | 2002-01-31 | Ozanich Richard M. | Apparatus and method and techniques for measuring and correlating characteristics of fruit with visible/near infra-red spectrum |
| US20040149916A1 (en) * | 2001-04-27 | 2004-08-05 | Angelo Benedetti | Portable apparatus for the non-destructive measurement to the internal quality of vegetable products |
| CN101021478A (en) * | 2007-02-13 | 2007-08-22 | 江西农业大学 | Laser inducing fluorescent high spectral image detecting method and device for fruit quality |
| CN101308086A (en) * | 2008-06-24 | 2008-11-19 | 江苏大学 | Fruit internal quality on-line checking method and apparatus based on near infrared spectra technology |
| CN102252971A (en) * | 2011-04-06 | 2011-11-23 | 食品行业生产力促进中心 | Rapid detection method for mango hardness |
| CN103837492A (en) * | 2014-02-24 | 2014-06-04 | 西北农林科技大学 | Nondestructive detection method for swelled kiwi fruits based on near-infrared spectrum technology |
| CN105424653A (en) * | 2015-11-10 | 2016-03-23 | 浙江大学 | Fruit pulp tissue optical property detection system and method adopting integrated fiber-optics probe |
-
2018
- 2018-03-21 CN CN201810236649.1A patent/CN108613951A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020011567A1 (en) * | 2000-03-13 | 2002-01-31 | Ozanich Richard M. | Apparatus and method and techniques for measuring and correlating characteristics of fruit with visible/near infra-red spectrum |
| US20040149916A1 (en) * | 2001-04-27 | 2004-08-05 | Angelo Benedetti | Portable apparatus for the non-destructive measurement to the internal quality of vegetable products |
| CN101021478A (en) * | 2007-02-13 | 2007-08-22 | 江西农业大学 | Laser inducing fluorescent high spectral image detecting method and device for fruit quality |
| CN101308086A (en) * | 2008-06-24 | 2008-11-19 | 江苏大学 | Fruit internal quality on-line checking method and apparatus based on near infrared spectra technology |
| CN102252971A (en) * | 2011-04-06 | 2011-11-23 | 食品行业生产力促进中心 | Rapid detection method for mango hardness |
| CN103837492A (en) * | 2014-02-24 | 2014-06-04 | 西北农林科技大学 | Nondestructive detection method for swelled kiwi fruits based on near-infrared spectrum technology |
| CN105424653A (en) * | 2015-11-10 | 2016-03-23 | 浙江大学 | Fruit pulp tissue optical property detection system and method adopting integrated fiber-optics probe |
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