NZ771721B2 - Light condensing device for inspecting quality inside fruits and vegetables, system comprising same, and use method thereof - Google Patents

Light condensing device for inspecting quality inside fruits and vegetables, system comprising same, and use method thereof Download PDF

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Publication number
NZ771721B2
NZ771721B2 NZ771721A NZ77172119A NZ771721B2 NZ 771721 B2 NZ771721 B2 NZ 771721B2 NZ 771721 A NZ771721 A NZ 771721A NZ 77172119 A NZ77172119 A NZ 77172119A NZ 771721 B2 NZ771721 B2 NZ 771721B2
Authority
NZ
New Zealand
Prior art keywords
fruits
internal quality
housing
planoconvex lens
inspecting internal
Prior art date
Application number
NZ771721A
Other versions
NZ771721A (en
Inventor
Er Zhu
Yi Zhu
Original Assignee
Reemoon Technology Co Ltd
Filing date
Publication date
Priority claimed from CN201810958224.1A external-priority patent/CN108663327A/en
Application filed by Reemoon Technology Co Ltd filed Critical Reemoon Technology Co Ltd
Publication of NZ771721A publication Critical patent/NZ771721A/en
Publication of NZ771721B2 publication Critical patent/NZ771721B2/en

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Classifications

    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106—General arrangement of respective parts
    • G01N2021/0112—Apparatus in one mechanical, optical or electronic block
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106—General arrangement of respective parts
    • G01N2021/015—Apparatus with interchangeable optical heads or interchangeable block of optics and detector
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N2021/845—Objects on a conveyor
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06166—Line selective sources
    • G01N2201/0618—Halogene sources
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/063—Illuminating optical parts
    • G01N2201/0638—Refractive parts
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source

Abstract

light condensing device for inspecting the quality inside fruits and vegetables, resolving the issue in which manually holding fruits for inspection is inefficient and cannot be used in large-scale fruit packaging production. The device comprises a housing (1), a halogen lamp (2), a diaphragm (3), a plano-convex lens support (4), a first plano-convex lens (5), a reflector lens fixing plate (6), a reflector (7), a plano-convex lens fixing plate (8), and a second plano-convex lens (9). The housing (1) is a sealed and non-transparent housing. The halogen lamp (2) is fixedly disposed at a left end of the housing (1), and extends into an inner portion of the housing (1). A pluggable diaphragm (3) is disposed at the right side of the halogen lamp (2), and is used to guide a lighting direction of the halogen lamp (2). The diaphragm (3) passes through the inner portion of the housing (1). The plano-convex lens support (4) is fixedly disposed inside the housing (1) at the right side of the diaphragm (3). The device improves the efficiency of inspecting the quality inside fruits, while also avoiding changes in inspection precision caused by extended manual operation of inspection instruments, thereby achieving the goal of inspecting the quality inside fruits in real time during mass production of fruits, and conserving labor and materials.

Claims (17)

Claims:
1. A light concentrating device for inspecting internal quality of fruits and vegetables, comprising: a housing, a halogen lamp, a diaphragm, a planoconvex lens holder, a first planoconvex lens, a reflector fixing plate, a reflector, a planoconvex lens fixing plate, and a second planoconvex lens, wherein the housing is a sealed opaque shell, the halogen lamp is fixedly mounted on a left end of the housing, the halogen lamp extends into an interior of the housing , a right side of the halogen lamp is provided with a pluggable diaphragm configured to guide a direction of light rays of the halogen lamp, the diaphragm passes through the interior of the housing, the planoconvex lens holder is fixedly mounted in the housing on a right side of the diaphragm, the first planoconvex lens for primary concentration of light rays is mounted on the planoconvex lens holder, the reflector fixing plate is fixedly mounted on a right side of the first planoconvex lens, the reflector configured to reflect light rays is mounted on the reflector fixing plate, the planoconvex lens fixing plate is fixedly mounted under the reflector, the second planoconvex lens for secondary concentration of light rays is mounted on the planoconvex lens fixing plate, and the second planoconvex lens extends out of the housing, wherein the reflector is mounted in an oblique manner, so as to be able to reflect light rays passing through the first planoconvex lens, such that the light rays vertically irradiate the second planoconvex lens.
2. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 1, further comprising: a fixing plate, a motor, a shading plate, and a thermal baffle, wherein the fixing plate is mounted on an external surface of the housing, the motor is fixedly mounted on the fixing plate, the shading plate configured for shielding light rays of the secondary concentration is in connection with an output shaft of the motor, and the thermal baffle is mounted on the shading plate.
3. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 1, wherein the housing is made of aluminum alloy.
4. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 2, wherein the thermal baffle is a thermal insulating fiberboard.
5. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 1, wherein the housing is made of a metal.
6. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 1, wherein the housing is made of stainless steel. 12 OPI20033435NZ OPI20033435NZ
7. The light concentrating device for inspecting internal quality of fruits and vegetables according to claim 2, wherein the thermal baffle is a thermal insulating asbestos board.
8. The light concentrating device for inspecting internal quality of fruits and vegetables according to any one of claims 1 to 7, wherein the halogen lamp has a power no less than 70 W.
9. The light concentrating device for inspecting internal quality of fruits and vegetables according to any one of claims 1 to 8, wherein the diaphragm is provided with an aperture, so as to be able to limit and focus light emitted by the halogen lamp.
10. A system for inspecting internal quality of fruits and vegetables, wherein the system comprises a detection device and a light concentrating device for inspecting internal quality of fruits and vegetables according to any one of claims 1 to 9, wherein the detection device is configured to perform corresponding optical signal detection for light spots irradiated on a fruit.
11. The system for inspecting internal quality of fruits and vegetables according to claim 10, wherein the inspection device further comprises a detection device sensor, wherein the detection device sensor is configured to input an electric signal to the motor when detecting that lamplight from the halogen lamp irradiates a surface of the fruit for a long time, such that the motor drives the shading plate and the thermal baffle to move, and the motor stops moving after that the shading plate and the thermal baffle are moved to a position between the second planoconvex lens and the fruit, such that the shading plate and the thermal baffle block light rays having passed through the second planoconvex lens.
12. The system for inspecting internal quality of fruits and vegetables according to claim 10 or 11, wherein the detection device is composed of STM32, ARM single chip microcomputer, or PLC.
13. The system for inspecting internal quality of fruits and vegetables according to any one of claims 10 to 12, wherein a control program is loaded into the detection device.
14. The system for inspecting internal quality of fruits and vegetables according to any one of claims 10 to 13, wherein the system for inspecting internal quality of fruits and vegetables further comprises a principal computer, wherein the principal computer is configured to correspondingly count and mark fruits having damaged internal quality.
15. A method for inspecting internal quality of fruits and vegetables, wherein the light concentrating device for inspecting internal quality of fruits and vegetables according to any one of claims 1 to 9 is mounted next to a conveying device for transporting the fruits; a power supply of the halogen 13 OPI20033435NZ OPI20033435NZ lamp is switched on, such that light rays emitted by the halogen lamp pass through the diaphragm, are then focused by the first planoconvex lens, and pass through the second planoconvex lens after passing by the reflector and are then focused on a surface of the fruits; and corresponding optical signal detection is performed for light spots irradiated on the fruits through a detection device.
16. The method for inspecting internal quality of fruits and vegetables according to claim 15, wherein the method further comprises: inputting an electric signal to a motor when a detection device sensor detects that lamplight irradiates the surface of the fruits for a long time, such that the motor drives a shading plate and a thermal baffle to move, and the motor stops moving after that the shading plate and the thermal baffle move to a position between the second planoconvex lens and a fruit, such that the shading plate and the thermal baffle block light rays having passed through the second planoconvex lens, hereby ensuring that an appearance of the fruit would not be scorched and damaged by the light rays.
17. The method for inspecting internal quality of fruits and vegetables according to claim 15 or 16, wherein the method further comprises using a principal computer, which is configured to correspondingly count and mark fruits having damaged internal quality. 14 OPI20033435NZ OPI20033435NZ Drawings
NZ771721A 2019-05-31 Light condensing device for inspecting quality inside fruits and vegetables, system comprising same, and use method thereof NZ771721B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810958224.1A CN108663327A (en) 2018-08-22 2018-08-22 A kind of beam condensing unit for the detection of fruits and vegetables inside quality
PCT/CN2019/089476 WO2020038043A1 (en) 2018-08-22 2019-05-31 Light condensing device for inspecting quality inside fruits and vegetables, system comprising same, and use method thereof

Publications (2)

Publication Number Publication Date
NZ771721A NZ771721A (en) 2023-11-24
NZ771721B2 true NZ771721B2 (en) 2024-02-27

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