Near-infrared hyperspectral technology-based nondestructive testing device for soluble solids of mangifera indica

Abstract

The utility model discloses a mango soluble solid nondestructive testing device based on a near-infrared hyperspectral technology, which relates to the technical field of fruit quality detection and comprises a computer and a box body, a hyperspectral imaging system and a control module are arranged in the box body, and the hyperspectral imaging system consists of hyperspectral imaging equipment, an objective table and a light source. The hyperspectral imaging device is connected with the box body through a first angle adjusting assembly composed of an installation support, a rotating shaft, a coupler and a first driving motor, the objective table is connected with the box body through a height adjusting device, the light source is connected with the side wall of the box body, the installation support is connected with the box body, and the rotating shaft is rotationally connected with the installation support and connected with the coupler. The coupler is connected with the first driving motor, the light source, the height adjusting device and the first driving motor are all connected with the control module, the hyperspectral imaging equipment and the control module are connected with the computer, and the technical problem that in the prior art, the scanning angle cannot be adjusted when the hyperspectral imaging equipment scans mangifera indica, and the quality of obtained spectral images is not high is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fruit quality detection, and particularly relates to a nondestructive detection device for soluble solids in mangoes based on near-infrared hyperspectral technology. Background Art

[0002] As the demand and taste of fruit consumption at home and abroad continue to increase, the market has put forward more and higher requirements for the quality of fruit. When purchasing fruit, people not only pay attention to the external quality such as the size and appearance of the fruit, but also pay more attention to the internal quality of the fruit.

[0003] The quality of fruits is judged according to the soluble solids content inside the fruits. Currently, the soluble solids content in fruits is usually detected non-destructively by hyperspectral imaging technology. For example, Chinese patent CN109975217A discloses a method for detecting the soluble solids content of plums based on a hyperspectral imaging system, which includes a hyperspectral image acquisition system, through which spectral images of plums are obtained for analyzing the soluble solids content of plums.

[0004] However, the quality of the collected spectral images is related to the scanning angle of the hyperspectral imaging device. For different shapes of fruits, if the hyperspectral imaging device is generally placed directly above the fruit without adjusting the scanning angle, the quality of the acquired spectral images will be low, resulting in inaccurate analysis of the soluble solids content. Utility Model Content

[0005] The purpose of the utility model is to provide a nondestructive detection device for soluble solids in mangoes based on near-infrared hyperspectral technology, thereby overcoming the technical problem that the hyperspectral imaging equipment in the prior art cannot adjust the scanning angle when scanning mangoes, resulting in low quality of the acquired spectral image and inaccurate analysis of the soluble solids content of mangoes. The specific technical solution is as follows:

[0006] A nondestructive detection device for soluble solids in mangoes based on near-infrared hyperspectral technology, comprising a computer and a box, wherein a hyperspectral imaging system and a control module are arranged in the box, wherein the hyperspectral imaging system comprises a hyperspectral imaging device, a stage and a light source, wherein the hyperspectral imaging device is connected to the top of the box through a first angle adjustment component, the stage is connected to the bottom of the box through a height adjustment device, and the light source is connected to the side wall of the box;

[0007] The first angle adjustment assembly includes a mounting bracket, a rotating shaft, a coupling and a first drive motor;

[0008] The mounting bracket includes a first mounting block and two second mounting blocks, the first mounting block is connected to the top of the box body, and the two second mounting blocks are perpendicular to the first mounting block and are respectively connected to both ends of the first mounting block;

[0009] The rotating shaft passes through the two second mounting blocks and is rotatably connected to the two second mounting blocks through a bearing;

[0010] One end of the rotating shaft is connected to one end of the coupling, the other end of the coupling is drivingly connected to the output end of the first driving motor, and the hyperspectral imaging device is fixedly connected to the rotating shaft;

[0011] The light source, the height adjustment device and the first drive motor are all electrically connected to the control module;

[0012] The hyperspectral imaging device and the control module are both electrically connected to the computer.

[0013] Preferably, the horizontal height of the light source is higher than the horizontal height of the lens of the hyperspectral imaging device, and the light source irradiates toward the stage.

[0014] Preferably, the light source is connected to the side wall of the box through a second angle adjustment component, and the second angle adjustment component includes a fixing bracket, an extension rod, a connecting rod and a second driving motor;

[0015] The fixing bracket is connected to the side wall of the box body and is provided with a through hole;

[0016] The second driving motor is mounted on the fixing bracket, and an output end thereof is fixedly connected to the extension rod, and the extension rod passes through the through hole;

[0017] One end of the connecting rod is fixedly connected to an end of the extension rod away from the second driving motor, and the other end of the connecting rod is fixedly connected to the light source;

[0018] The second driving motor is electrically connected to the control module.

[0019] Preferably, the first mounting block is slidably connected to the box body via a transverse sliding assembly, and the transverse sliding assembly includes a slide groove, a slider and an electric telescopic rod;

[0020] The slideway is arranged at the top of the box body, and its cross section is a T-shaped structure;

[0021] The sliding block is fixedly connected to one end of the first mounting block close to the top of the box body, and the sliding block is a T-shaped structure, which is slidably connected to the sliding groove;

[0022] The electric telescopic rod is fixedly mounted on the top of the box body, and its output end is connected to the first mounting block for driving the first mounting block to reciprocate along the slide slot. The electric telescopic rod is electrically connected to the control module.

[0023] Preferably, a touch LED screen is provided on the outer surface of the box, and the touch LED screen is electrically connected to the control module.

[0024] Preferably, a storage groove is provided on the end surface of the stage close to the hyperspectral imaging device.

[0025] Preferably, the box body is provided with a storage door assembly, and the storage door assembly comprises a door frame and a switch door;

[0026] The door frame is arranged on the side wall of the box body, a protrusion is arranged on the door frame close to one end of the box body, one side of the switch door is rotatably connected to one side of the door frame, a handle is arranged on the other side of the switch door, and when the switch door is covered on the door frame, the switch door is fitted with the protrusion.

[0027] Preferably, the hyperspectral imaging device is a hyperspectral camera or a hyperspectral imager.

[0028] Preferably, the height adjustment device is a cylinder.

[0029] Preferably, the light source is a 150W halogen lamp, and the number of the light sources is at least two.

[0030] Compared with the existing technology, the utility model has the following beneficial effects:

[0031] The utility model provides a nondestructive detection device for soluble solids in mangoes based on near-infrared hyperspectral technology. During use of the detection device, a tester sends a control instruction to a control module through a computer, and the control module controls the rotation of a first drive motor to adjust the scanning angle of a hyperspectral imaging device, thereby solving the technical problem that the hyperspectral imaging device in the prior art cannot adjust the scanning angle when scanning mangoes, resulting in low quality of the acquired spectral image and inaccurate analysis of the soluble solids content of mangoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0033] Figure 1 It is a structural schematic diagram of the utility model.

[0034] Figure 2 yes Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0035] Figure 3 It is a structural schematic diagram of the box body in the utility model.

[0036] Description of main reference numerals:

[0037] 100-computer, 200-box, 201-slide, 202-touch LED screen, 210-control module, 220-hyperspectral imaging device, 230-stage, 231-storage slot, 240-light source, 250-first angle adjustment component, 251-mounting bracket, 2511-first mounting block, 2512-second mounting block, 2513-slider, 252-rotating shaft, 253-coupling, 254-first drive motor, 255-fixed bracket, 256-fastening knob, 260-second angle adjustment component, 261-fixed bracket, 262-connecting rod, 263-second drive motor, 270-storage door assembly, 271-door frame, 272-door switch, 2721-handle, 280-height adjustment device. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0042] Example

[0043] like Figures 1 to 3 As shown, the embodiment of the present application provides a nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology, including a computer 100 and a box 200, wherein a hyperspectral imaging system and a control module 210 are arranged in the box 200, and a storage door assembly 270 is arranged on the box 200, and the hyperspectral imaging system includes a hyperspectral imaging device 220, a stage 230 and a light source 240, wherein the hyperspectral imaging device 220 is connected to the top of the box 200 through a first angle adjustment assembly 250, and the stage 230 is connected to the bottom of the box 200 through a height adjustment device 280, and the light source 240 is connected to the side wall of the box 200.

[0044] Specifically, the experimenter placed the mangoes in the box body 200 through the storage door assembly 270. The storage door assembly 270 includes a door frame 271 and a switch door 272. The door frame 271 is arranged on the side wall of the box body 200. The door frame 271 is provided with a protrusion at one end close to the box body 200. One side of the switch door 272 is rotatably connected to one side of the door frame 271. The other side of the switch door 272 is provided with a handle 2721. When the switch door 272 covers the door frame 271, the switch door 272 is fitted with the protrusion. The number of the light sources 240 is at least two. In the present embodiment, the number of the light sources 240 is two. In other embodiments, the number of the light sources 240 can be appropriately increased according to actual needs. Furthermore, the light source 240 is a 150W halogen lamp.

[0045] Among them, the hyperspectral imaging device 220 can be a hyperspectral camera or a hyperspectral imager, the height adjustment device 280 is a cylinder, and the material of the box 200 is an opaque material to prevent light from the external environment from entering the box 200 and affecting the hyperspectral imaging device 220 from acquiring spectral images.

[0046] Preferably, the horizontal height of the light source 240 is higher than the horizontal height of the lens of the hyperspectral imaging device 220, and the light source 240 irradiates toward the stage 230 to prevent the light scattered by the light source 240 from directly entering the lens of the hyperspectral imaging device 220, thereby affecting the spectral image acquired by the hyperspectral imaging device 220. The stage 230 is provided with a storage groove 231 on the end face close to the hyperspectral imaging device 220. When in use, the mangoes are placed on the storage groove 231 to prevent the mangoes from rolling, thereby affecting the acquisition of spectral images by the hyperspectral imaging device 220.

[0047] The first angle adjustment assembly 250 includes a mounting bracket 251, a rotating shaft 252, a coupling 253 and a first driving motor 254. The mounting bracket 251 includes a first mounting block 2511 and two second mounting blocks 2512. The first mounting block 2511 is connected to the top of the box body 200. The two second mounting blocks 2512 are perpendicular to the first mounting block 2511 and are respectively connected to the two ends of the first mounting block 2511. The rotating shaft 252 passes through the two second mounting blocks 2512 and is connected to the first driving motor 254 through the bearing. The two second mounting blocks 2512 are rotatably connected, one end of the rotating shaft 252 is connected to one end of the coupling 253, the other end of the coupling 253 is drivingly connected to the output end of the first drive motor 254, the hyperspectral imaging device 220 is fixedly connected to the rotating shaft 252, the light source 240, the height adjustment device 280 and the first drive motor 254 are all electrically connected to the control module 210, and the hyperspectral imaging device 220 and the control module 210 are both electrically connected to the computer 100.

[0048] Among them, the experimenter sends a control instruction to the control module 210 through the computer 100, and the control module 210 controls the first drive motor 254 to work, thereby driving the hyperspectral imaging device 220 to rotate through the rotating shaft 252 to adjust the scanning angle, the first mounting block 2511 and the second mounting block 2512 are an integrated structure, and the hyperspectral imaging device 220 is fixedly connected to the rotating shaft 252 through a fixing frame 255. Two fastening knobs 256 are further provided on both sides of the fixing frame 255. The fastening knob 256 penetrates the fixing frame 255 and then abuts against the hyperspectral imaging device 220. Through the fastening knob 256, the connection stability between the hyperspectral imaging device 220 and the fixing frame is further increased. Preferably, a suction cup is provided at one end of the fastening knob 256 abutting against the hyperspectral imaging device 220.

[0049] In some embodiments, the first mounting block 2511 is slidably connected to the box body 200 through a transverse sliding assembly, and the transverse sliding assembly includes a slide groove 201, a slider 2513 and an electric telescopic rod. The slide groove 201 is arranged at the top of the box body 200, and its cross section is a T-shaped structure. The slider 2513 is fixedly connected to one end of the first mounting block 2511 close to the top of the box body 200. The slider 2513 is a T-shaped structure, which is slidably connected to the slide groove 201. The electric telescopic rod is fixedly installed at the top of the box body 200, and its output end is connected to the first mounting block 2511. The electric telescopic rod is electrically connected to the control module 210, and the computer 100 sends a control instruction to the control module 210 during use. The control module 210 controls the electric telescopic rod to extend or contract to drive the first mounting block 2511 to reciprocate along the slide slot 201, thereby driving the hyperspectral imaging device 220 to reciprocate along the slide slot 201, thereby further optimizing the scanning angle of the hyperspectral imaging device 220.

[0050] In some embodiments, a touch LED screen 202 is provided on the outer surface of the box 200, and the touch LED screen 202 is electrically connected to the control module 210. When in use, the staff does not need to go through the computer 100, but can directly issue control instructions to the control module 210 through the touch LED screen, thereby controlling the light source 240, the first drive motor 254 or the height adjustment device 280 as needed, thereby further improving the test efficiency.

[0051] In some embodiments, the light source 240 is connected to the side wall of the box 200 through a second angle adjustment component 260, and the second angle adjustment component 260 includes a fixed bracket 261, an extension rod, a connecting rod 262 and a second drive motor 263. The fixed bracket 261 is connected to the side wall of the box 200 and is provided with a through hole. The second drive motor 263 is installed on the fixed bracket 261, and its output end is fixedly connected to the extension rod, and the extension rod passes through the through hole. One end of the connecting rod 262 is away from the second drive motor 263 from the extension rod. One end of the connecting rod 262 is fixedly connected, the other end of the connecting rod 262 is fixedly connected to the light source 240, and the second driving motor 263 is electrically connected to the control module 210. When in use, the experimenter sends a control instruction to the control module 210 through the computer 100 or the touch LED screen 202, and the control module 210 controls the second driving motor 263 to start to adjust the irradiation angle of the light source 240 to avoid as much as possible the reflection of the light irradiated by the light source 240 on the surface of the mango, so as to affect the quality of the spectral image collected by the hyperspectral imaging device 220.

[0052] In summary, the hyperspectral imaging device of the utility model is connected to the top of the box body through a first angle adjustment assembly composed of a mounting bracket, a rotating shaft, a coupling and a first drive motor. The mounting bracket includes a first mounting block and two second mounting blocks. The first mounting block is connected to the box body. The two second mounting blocks are perpendicular to the first mounting block and are respectively connected to the two ends of the first mounting block. The rotating shaft is rotatably connected to the two second mounting blocks. The rotating shaft is transmission-connected to the first drive motor through a coupling. The first drive motor is electrically connected to a control module. The control module is electrically connected to a computer. The tester sends a control instruction to the control module through a computer, and the control module controls the first drive motor. The scanning angle of the hyperspectral imaging device can be adjusted by rotating, which solves the technical problem that the hyperspectral imaging device in the prior art cannot adjust the scanning angle when scanning mangoes, resulting in low quality of the acquired spectral image and inaccurate analysis of the soluble solids content of mangoes. At the same time, by setting a lateral sliding component, the scanning angle of the hyperspectral imaging device is further optimized. By setting a touch LED screen on the outer surface of the box, the test efficiency is improved. The light source is connected to the box through a second angle adjustment component. By adjusting the irradiation angle of the light source, the reflection of the light irradiated by the light source to the surface of the mangoes is avoided as much as possible to affect the quality of the spectral image collected by the hyperspectral imaging device.

[0053] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A nondestructive detection device for soluble solids in mangoes based on near-infrared hyperspectral technology, comprising a computer (100) and a housing (200), wherein a hyperspectral imaging system and a control module (210) are arranged in the housing (200), wherein the hyperspectral imaging system comprises a hyperspectral imaging device (220), a stage (230) and a light source (240), wherein: The hyperspectral imaging device (220) is connected to the top of the box (200) via a first angle adjustment component (250), the stage (230) is connected to the bottom of the box (200) via a height adjustment device (280), and the light source (240) is connected to a side wall of the box (200); The first angle adjustment assembly (250) comprises a mounting bracket (251), a rotating shaft (252), a coupling (253) and a first driving motor (254); The mounting bracket (251) comprises a first mounting block (2511) and two second mounting blocks (2512), wherein the first mounting block (2511) is connected to the top end of the box body (200), and the two second mounting blocks (2512) are perpendicular to the first mounting block (2511) and are respectively connected to two ends of the first mounting block (2511); The rotating shaft (252) passes through the two second mounting blocks (2512) and is rotatably connected to the two second mounting blocks (2512) via a bearing; One end of the rotating shaft (252) is connected to one end of the coupling (253), the other end of the coupling (253) is drivingly connected to the output end of the first driving motor (254), and the hyperspectral imaging device (220) is fixedly connected to the rotating shaft (252); The light source (240), the height adjustment device (280) and the first drive motor (254) are all electrically connected to the control module (210); The hyperspectral imaging device (220) and the control module (210) are both electrically connected to the computer (100).

2. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The light source (240) is located at a higher level than a lens of the hyperspectral imaging device (220), and the light source (240) irradiates toward the stage (230).

3. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The light source (240) is connected to the side wall of the box (200) via a second angle adjustment component (260), and the second angle adjustment component (260) comprises a fixing bracket (261), an extension rod, a connecting rod (262), and a second driving motor (263); The fixing bracket (261) is connected to the side wall of the box body (200) and is provided with a through hole; The second driving motor (263) is mounted on the fixing bracket (261), and an output end thereof is fixedly connected to the extension rod, and the extension rod passes through the through hole; One end of the connecting rod (262) is fixedly connected to an end of the extension rod away from the second driving motor (263), and the other end of the connecting rod (262) is fixedly connected to the light source (240); The second driving motor (263) is electrically connected to the control module (210).

4. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The first mounting block (2511) is slidably connected to the box body (200) via a transverse sliding assembly, wherein the transverse sliding assembly comprises a sliding groove (201), a sliding block (2513) and an electric telescopic rod; The slide groove (201) is arranged at the top end of the box body (200), and its cross section is a T-shaped structure; The sliding block (2513) is fixedly connected to one end of the first mounting block (2511) close to the top of the box body (200); the sliding block (2513) is a T-shaped structure and is slidably connected to the sliding groove (201); The electric telescopic rod is fixedly mounted on the top of the box (200), and its output end is connected to the first mounting block (2511) for driving the first mounting block (2511) to perform reciprocating motion along the slide groove (201). The electric telescopic rod is electrically connected to the control module (210).

5. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The outer surface of the box (200) is provided with a touch LED screen (202), and the touch LED screen (202) is electrically connected to the control module (210).

6. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The end surface of the object platform (230) close to the hyperspectral imaging device (220) is provided with an object placement groove (231).

7. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The box body (200) is provided with a storage door assembly (270), and the storage door assembly (270) comprises a door frame (271) and a switch door (272); The door frame (271) is arranged on the side wall of the box body (200); a protrusion is arranged on one end of the door frame (271) close to the box body (200); one side of the switch door (272) is rotatably connected to one side of the door frame (271); a handle (2721) is arranged on the other side of the switch door (272); when the switch door (272) covers the door frame (271), the switch door (272) fits the protrusion.

8. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1 is characterized in that: The hyperspectral imaging device (220) is a hyperspectral camera or a hyperspectral imager.

9. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1, characterized in that: The height adjustment device (280) is a cylinder.

10. The nondestructive detection device for mango soluble solids based on near-infrared hyperspectral technology according to claim 1, characterized in that: The light source (240) is a 150W halogen lamp, and the number of the light sources (240) is at least two.

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