CN214894851U - Fruit detection device - Google Patents
Fruit detection device Download PDFInfo
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- CN214894851U CN214894851U CN202120660940.9U CN202120660940U CN214894851U CN 214894851 U CN214894851 U CN 214894851U CN 202120660940 U CN202120660940 U CN 202120660940U CN 214894851 U CN214894851 U CN 214894851U
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Abstract
The utility model discloses a fruit detection device belongs to near infrared spectrum fruit and detects technical field, fruit detection device, include: the fruit detection device comprises a detection box in a cuboid structure, wherein one end of the detection box in the length direction is a fruit placing end, and the other end of the detection box is provided with a spectrum detection end which is arranged corresponding to the fruit placing end; the fruit placing end is provided with a lifting platform for placing fruits to be tested and a two-dimensional adjusting mechanism for adjusting the lifting platform; the spectrum detection end is provided with a light source component for irradiating the fruit to be detected and a near-infrared spectrometer for receiving the diffuse reflection light of the fruit to be detected. The utility model discloses technical scheme has promoted fruit detection device's detection accuracy.
Description
Technical Field
The utility model relates to a near infrared spectrum fruit detects technical field, concretely relates to fruit detection device.
Background
With the continuous improvement of living standard, consumers pay more and more attention to the quality requirements of fruits when purchasing the fruits, not only pay more and more attention to external qualities such as size, color and appearance, but also pay more and more attention to the taste of internal qualities such as sugar degree and acidity.
At present, the research on the nondestructive detection of internal quality such as sugar content, acidity and the like of fruits by using the near infrared spectrum technology is a research hotspot of scholars at home and abroad in recent years. The existing detection equipment generally uses near infrared transmission spectrum to detect materials. However, due to the fruit with the inner core, when the absorption spectrum of the fruit is collected in a transmission mode, the size of a detection signal, the detection accuracy and the like are greatly influenced. And adopt the diffuse reflection mode, generally adopt a fixed light source and receiver to correspond to detect the interior quality of fruit, a position of its detection fruit, it is lower to detect the accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a fruit detection device, aim at promoting fruit detection device's detection accuracy.
The utility model provides a basic scheme:
fruit detection device, its characterized in that includes:
the fruit detection device comprises a detection box in a cuboid structure, wherein one end of the detection box in the length direction is a fruit placing end, and the other end of the detection box is provided with a spectrum detection end which is arranged corresponding to the fruit placing end;
the fruit placing end is provided with a lifting platform for placing fruits to be tested and a two-dimensional adjusting mechanism for adjusting the lifting platform;
the spectrum detection end is provided with a light source component for irradiating the fruits to be detected and a near-infrared spectrometer for receiving the diffuse reflection light of the fruits to be detected.
The utility model discloses the principle of basic scheme does:
in this scheme, including the detection case that is the cuboid structure among the fruit detection device to and put the end and the spectrum detection end of the other end at the fruit of detection case length direction one end, also be about to be the fruit detection device of cuboid structure and divide into two parts of fruit placement end and spectrum detection end in length direction. The fruit placing end part is provided with a lifting table and a two-dimensional adjusting mechanism, and the spectrum detection end is provided with a light source component and a near-infrared spectrometer; after placing the fruit that awaits measuring on the elevating platform, accessible two-dimensional adjustment mechanism adjusts the position of the fruit that awaits measuring for the light source subassembly in width direction and length direction, and the light source subassembly just can direct irradiation to the fruit surface that awaits measuring, and the diffuse reflection light of the fruit that awaits measuring is just received to near infrared spectrometer carries out the analysis processes to the diffuse reflection light of receiving and sends to the terminal.
The basic scheme has the beneficial effects that:
(1) in this scheme, because fruit detection device is for being the cuboid structure, the end is placed for fruit to the one end on length direction, and the spectrum detection end of the other end for corresponding the setting has promoted fruit detection device's convenience.
(2) In this scheme, because the elevating platform and the two-dimensional adjustment mechanism of fruit place end, be convenient for to the regulation of the fruit position that awaits measuring to make the near-infrared spectroscopy appearance of spectrum detection end more accurate detect the fruit that awaits measuring.
(3) In this scheme, have the light source subassembly of a plurality of light sources and receive the near-infrared spectrum appearance of diffuse reflection light through the spectrum detection end, be convenient for more accurately react the inside tissue characteristic of fruit that awaits measuring, promote fruit detection device's accuracy.
Further, the two-dimensional adjusting mechanism is provided with a plurality of adjusting knobs, and the adjusting ends of the adjusting knobs are exposed out of the shell of the detection box.
Through setting up a plurality of adjust knob that are connected to the elevating platform, and adjust knob's regulation end exposes in the setting of detection case casing, and the user of being convenient for adjusts the position of the fruit that awaits measuring on the elevating platform.
Further, each adjusting knob is provided with an adjusting scale.
Through the regulation scale of each adjust knob, the user of being convenient for accuracy carries out position control to the elevating platform of placing the fruit that awaits measuring.
Further, the light source assembly comprises a plurality of light sources with controllable on-off and/or brightness.
Through independently adjusting a plurality of light sources in the light source subassembly, also can independently control break-make and/or luminance to every light source in the light source subassembly promptly to make more accurate control light source subassembly shine the fruit that awaits measuring.
Further, each light source is a 12V/5W tungsten halogen lamp.
Because each light source of the light source component adopts a tungsten halogen lamp, the power consumption is lower, and the brightness is easy to control and adjust.
Further, the near-infrared spectrometer is provided with an optical fiber sensing probe and is used for receiving the diffuse reflection light of the fruit to be detected.
Due to the fact that the diffuse reflection light of the fruit to be detected is collected through the optical fiber sensing probe, the fruit to be detected can be detected more sensitively and accurately.
Further, the spectrum detection end is also provided with a coating quartz focusing lens for focusing the diffuse reflection light of the fruit to be detected, and the coating quartz focusing lens is arranged adjacent to the optical fiber sensing probe.
Because the spectrum detection end has the coating quartz focusing lens, can focus the diffuse reflection light that the light source subassembly shines and produce on the fruit that awaits measuring to couple diffuse reflection light to the front portion of near-infrared spectrometer, with the entry of concentrating the diffuse reflection light near-infrared spectrometer, reach bigger photosensitive range.
Furthermore, the fruit detection device also comprises a light shield with three fixed surfaces and an openable light shield with one openable surface, wherein the openable light shield is positioned at the top of the fruit placing end of the detection box.
Through trilateral fixed lens hood and the lens hood that one side can be opened that fruit detection device includes to the interference of ambient light when avoiding detecting the fruit that awaits measuring.
Furthermore, one end of the openable light shield is rotatably hinged with the detection box.
Because the openable light shield end of the fruit detection device is rotatably hinged with the edge of the upper end of the detection box, the light shield can be opened, so that the fruits to be detected can be put in and taken out conveniently.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the fruit detecting device of the present invention;
FIG. 2 is a schematic top view of the fruit detecting device according to the embodiment of the present invention, wherein the detecting box housing and the light shield are hidden;
fig. 3 is a schematic structural diagram of the fruit detection device of the latter embodiment of the concealed detection box shell and the light shield.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a shell 10, an openable light shield 20a, a light shield 20b, fruits to be detected 30, a lifting table 11, a horizontal X-axis adjusting knob 12a, a horizontal Y-axis adjusting knob 12b, a light source 13, a near-infrared spectrometer 14, an optical fiber sensing probe 15, a coated quartz focusing lens 16, a power line 17 and a communication transmission line 18.
In an embodiment, referring to fig. 2 and fig. 3, the direction of the arrow is the length direction of the detection box, the fruit detection device in the solution comprises:
the fruit detection device comprises a detection box in a cuboid structure, wherein one end of the detection box in the length direction is a fruit placing end, and the other end of the detection box is provided with a spectrum detection end which is arranged corresponding to the fruit placing end;
the fruit placing end is provided with a lifting platform 11 for placing the fruit 30 to be tested and a two-dimensional adjusting mechanism for adjusting the lifting platform 11;
the spectrum detection end is provided with a light source component for irradiating the fruit 30 to be detected and a near-infrared spectrometer 14 for receiving the diffuse reflection light of the fruit 30 to be detected.
In this embodiment, referring to fig. 1, which is a schematic view of a detection box of a fruit detection device, a detection box housing 10 has a housing 10 and a light shield 20b, the light shield 20b includes an openable light shield 20a and a non-openable light shield 20a, that is, three faces around a fruit 30 to be detected are fixed light shields 20b, the openable light shield 20a is above the fruit 30 to be detected, and the light shield 20b is also a part of the housing 10. It can be understood that the light shield 20b is a black light shield shell 10, and when the fruit detection device detects the fruit 30 to be detected, the openable light shield 20a needs to be closed to avoid the interference of the ambient light. When other fruits 30 to be tested need to be replaced, the openable light shield 20a is opened to put other fruits 30 to be tested.
It should be noted that one end of the openable light shield 20a is rotatably hinged to the edge of the top casing 10 of the detection box, and the openable light shield 20a on the top of the fruit 30 to be detected can be opened/closed through the hinged position.
In an embodiment, referring to fig. 2, it is a top view after the fruit detection device hides the detection box housing 10 and the light shield 20b, and referring to fig. 3, it is a schematic diagram of the internal structure after the fruit detection device hides the detection box housing 10 and the light shield 20b, the detection box of the fruit detection device is in a cuboid structure, there is a fruit placing end at one end of the detection box in the length direction, and there is a spectrum detection end at the other end, i.e. the fruit detection device which is about to be in the cuboid structure is divided into two parts of the fruit placing end and the spectrum detection end in the length direction. The fruit placing end part is provided with a lifting table 11 and a two-dimensional adjusting mechanism, and the spectrum detection end is provided with a light source component and a near-infrared spectrometer 14; after placing the fruit 30 that awaits measuring on elevating platform 11, accessible two-dimensional adjustment mechanism adjusts the position of the fruit 30 that awaits measuring for the light source subassembly at detection case width direction and length direction, and the light source subassembly just can directly shine to the fruit 30 surface that awaits measuring, and near-infrared spectrometer 14 just receives the diffuse reflection light of the fruit 30 that awaits measuring to carry out analysis processes to the diffuse reflection light of receiving and send to the terminal through communication transmission line 18.
Specifically, the fruit detection device detects the fruit 30 to be detected, and mainly comprises a light source assembly, a near-infrared spectrometer 14, a two-dimensional adjusting mechanism and a lifting platform 11. The lifting platform 11 is used for placing the fruit 30 to be detected, each light source 13 in the light source assembly irradiates the fruit 30 to be detected, the coated quartz focusing lens 16 is used for focusing and coupling the diffuse reflection light of the fruit 30 to be detected, so that the focused diffuse reflection light is concentrated to the optical fiber sensing probe 15 which is arranged close to the coated quartz focusing lens 16, the optical fiber sensing probe 15 outputs the collected diffuse reflection light to the near infrared spectrometer 14 to be modulated into an optical signal, the optical signal is transmitted to the terminal equipment for displaying through the communication transmission line 18 after analysis processing, so that the internal tissue characteristics of the fruit 30 to be detected are displayed, and the internal quality of the fruit 30 to be detected, such as total sugar, acidity, hardness, soluble solid matters and the like, can be conveniently judged by a user.
It should be noted that, the two-dimensional adjusting mechanism adjusts the position of the lifting platform 11, and may include a horizontal X-axis adjusting knob 12a and a horizontal Y-axis adjusting knob 12b, the horizontal X-axis adjusting knob 12a may adjust the lifting platform 11 to move in the length direction of the fruit detection device detection box, and the horizontal Y-axis adjusting knob 12b may adjust the lifting platform 11 to move in the width direction of the fruit detection device detection box, so that the fruit 30 to be detected placed on the lifting platform 11 is accurately aligned to the light source assembly and the coated quartz focusing lens 16.
In an embodiment, referring to fig. 2 and fig. 3, the light source assembly includes a plurality of light sources 13 capable of controlling on/off and/or brightness, and the plurality of light sources 13 in the light source assembly are independently adjusted, that is, the light source assembly may include a group of tungsten halogen lamps with different wavelengths, and is configured to generate illumination light with uniform light intensity distribution to illuminate the whole fruit 30 to be measured, and the light with different wavelengths simultaneously illuminates the fruit 30 to be measured or at least one of the fruits 30 to be measured, so that the on/off and/or brightness of each light source 13 in the light source assembly can be independently controlled, so that the light source assembly can be more accurately controlled to illuminate the fruit 30 to be measured. Meanwhile, each light source 13 in the light source assembly can be adjusted according to a certain preset angle, so that the position of the fruit 30 to be detected can be better aligned, the detection and identification of the internal tissue characteristics of the fruit 30 to be detected are facilitated, and the accuracy of the fruit detection device for detecting the fruit 30 to be detected is improved.
It should be noted that the preset angle for adjusting each light source 13 in the light source assembly may be, but is not limited to, 40 °, 45 °, and the like, and is set according to the actual application.
In the above embodiment, the fruit 30 to be tested may be apple, pear, peach, orange, hami melon, mango, or the like; the light source assembly is a Vivo near-infrared light source 13, and the Vivo near-infrared light source 13 consists of four 12V/5W tungsten halogen lamps, and can be adjusted at an angle of about 45 degrees to prove that one light source 13 in the light source assembly illuminates and is used for measuring the diffuse reflection spectrum of the fruit 30 to be measured. In the scheme, a near infrared spectrometer 14(NIRQuest512-2.5) with the wavelength range of 900nm-2500nm and the resolution of 6.3nm can be adopted in the fruit detection device; the focusing lens adopts a coating quartz focusing lens 16(74-UV) with the diameter of 5mm and the focal length of 10mm to focus and couple the diffuse reflection light of the fruit 30 to be measured to the front inlet of the near infrared spectrometer 14, so as to achieve a larger photosensitive range.
The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics of the embodiments is not described herein, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. Fruit detection device, its characterized in that includes:
the fruit detection device comprises a detection box in a cuboid structure, wherein one end of the detection box in the length direction is a fruit placing end, and the other end of the detection box is provided with a spectrum detection end which is arranged corresponding to the fruit placing end;
the fruit placing end is provided with a lifting platform for placing fruits to be tested and a two-dimensional adjusting mechanism for adjusting the lifting platform;
the spectrum detection end is provided with a light source component for irradiating the fruits to be detected and a near-infrared spectrometer for receiving the diffuse reflection light of the fruits to be detected.
2. The fruit detecting device of claim 1, wherein the two-dimensional adjusting mechanism has a plurality of adjusting knobs, and an adjusting end of each adjusting knob is exposed out of the shell of the detecting box.
3. The fruit detection device of claim 2, wherein each of the adjustment knobs has an adjustment scale.
4. The fruit detection apparatus of claim 1, wherein the light source assembly comprises a plurality of controllable on/off and/or brightness light sources.
5. The fruit detection apparatus of claim 4, wherein each of the light sources is a 12V/5W tungsten halogen lamp.
6. The fruit detection device of claim 1, wherein the near infrared spectrometer has a fiber optic sensing probe for receiving the diffuse reflected light of the fruit under test.
7. The fruit detection device according to claim 6, wherein the spectrum detection end is further provided with a coated quartz focusing lens for focusing the diffuse reflection light of the fruit to be detected, and the coated quartz focusing lens is arranged adjacent to the optical fiber sensing probe.
8. The fruit detection device of any one of claims 1 to 7, further comprising a three-sided fixed light shield and a one-sided openable light shield, the openable light shield being located on top of the fruit-placement end of the detection chamber.
9. The fruit detection device of claim 8, wherein the openable light shield is pivotally connected at one end to the detection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120660940.9U CN214894851U (en) | 2021-03-31 | 2021-03-31 | Fruit detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120660940.9U CN214894851U (en) | 2021-03-31 | 2021-03-31 | Fruit detection device |
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| CN214894851U true CN214894851U (en) | 2021-11-26 |
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| CN202120660940.9U Active CN214894851U (en) | 2021-03-31 | 2021-03-31 | Fruit detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075161A (en) * | 2021-03-31 | 2021-07-06 | 重庆电子工程职业学院 | Near-infrared fruit internal quality detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075161A (en) * | 2021-03-31 | 2021-07-06 | 重庆电子工程职业学院 | Near-infrared fruit internal quality detection system |
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