Nondestructive agricultural product internal quality measuring device

Abstract

The invention discloses a non-destructive agricultural product internal quality measuring device which comprises a light emitting component, a light receiving component, a light guiding component and a heat ray cutting component. The light-receiving member is mounted in a direction perpendicular to the agricultural product transfer direction and is mounted in contrast to the light-emitting member, the light emitted by the light-emitting member is emitted from a light source, and the light transmitted through the agricultural product is received by the light-receiving member, and the light guide member is mounted in front of the light-receiving member side of the light-emitting member. The light guide part is arranged between the light-emitting part and the agricultural product, and a heat ray cutting part is arranged on the light guide part. The invention belongs to the technical field of non-destructive internal detection of agricultural products, and particularly relates to a device which can be additionally arranged on a standard screening device while maintaining high measurement precision and preventing quality damage of the agricultural products caused by overheating so as to improve the utilization degree.

Description

Technical Field

[0001] The invention belongs to the technical field of non-destructive agricultural product internal quality detection, and specifically refers to a non-destructive agricultural product internal quality determination device. Background Art

[0002] In order to increase the added value of agricultural products, harvested agricultural products should be screened according to quality grades. In the past, in the post-harvest processing, the quality of agricultural products was mostly screened by weight or color. In many cases, such size or color cannot well represent the quality of agricultural products, and there is also a problem that the accuracy of judgment is very subjective.

[0003] In order to make the grade determination more objective and accurate, there is a systematic study on non-destructive measurement of the internal quality of agricultural products. The non-destructive internal quality measurement device uses the principle that the sugar content, acidity and other components inside the agricultural products absorb light of a specific wavelength, mainly allowing near-infrared rays to pass through the agricultural products, and measuring the light amount according to the wavelength band of the transmitted light, thereby measuring the internal quality of the fruit such as the sugar content and acidity.

[0004] Non-destructive internal quality measurement equipment can be classified into full-transmission type and semi-transmission type according to the configuration of the light-emitting component and the light-receiving component. Figure 1 Among (I) to (IV), the full transmission type is a method in which the light emitting component and the light receiving component are placed in the middle of the agricultural product and are arranged opposite to each other, and the light coming out of the light emitting component, passing through the agricultural product, and going out in the opposite direction is received by the light receiving component. The semi-transmission type is a method in which the light emitting component and the light receiving component are installed at approximately right angles to each other, and the light coming out of the light emitting component, passing through the agricultural product and going out in the right-angled direction is received by the light receiving component. The reflection type is a method in which the light emitting component and the light receiving component are installed in the same position, and the light coming out of the light emitting component, passing through the agricultural product in a zigzag manner, and returning is received by the light receiving component.

[0005] Generally speaking, it is generally believed that the transmission type can measure more accurately than the reflection type. However, the transmitted light is much weaker than the reflected light, so it is necessary to pay attention to the higher power light source of the transmission type than the reflection type and the resulting burns on agricultural products. Therefore, due to such difficulties, the use of the full transmission type is limited. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a method for suppressing the damage of agricultural products caused by high heat, maximizing the suppression of stray light other than the light emitted by the agricultural products, and allowing for correct internal configuration judgment, and provides a non-destructive agricultural product internal quality measurement device, which can be installed on an existing screening device without changing the existing screening device, and is easy to use.

[0007] The technical solution adopted by the present invention is as follows: The present invention is a non-destructive agricultural product internal quality measuring device, including a light-emitting component, a light-receiving component, a light-guiding component and a heat-ray cutting component, the light-emitting component is installed on one side of a direction that intersects at right angles with the agricultural product transfer direction, the light-receiving component is installed in a direction that intersects at right angles with the agricultural product transfer direction and is installed opposite to the light-emitting component, the light emitted from the light source of the light-emitting component and passing through the agricultural product is received by the light-receiving component, the light-guiding component is installed in front of the light-receiving component side of the light-emitting component, the light-guiding component is installed between the light-emitting component and the agricultural product, and a heat-ray cutting portion is installed on the light-guiding component, and the heat-ray cutting portion is used to cut off heat rays in the light emitted from the light source that may cause burns to the agricultural product.

[0008] Furthermore, the light receiving component is formed to receive light emitted from the light source and transmitted through the agricultural product, and the light receiving component is provided with a light sensor and an optical fiber, and the light receiving component plays the role of transmitting the incident light to the light sensor, and the light sensor detects the light amount according to the wavelength band of the incident light, and the optical fiber is used to receive the light and transmit it to the light sensor, and the agricultural product installed and transferred on the edge end of the agricultural product of the optical fiber is at the original position of the measurement location, including an agricultural product guiding component having a shape to guide the abnormally placed agricultural product to the measurement location. In the preferred embodiment, the light receiving component is installed corresponding to the above-mentioned one side with the above-mentioned transfer direction as the reference.

[0009] Furthermore, the light source of the light-emitting component adopts a light source that emits visible light or near-infrared light, the light-emitting component adopts a DC halogen lamp, the light-emitting component emits light with a total power of more than 500W and has a reflector installed around at least a portion of the rear of the light source.

[0010] Furthermore, the light sensor measures the size of the light according to the wavelength band of the light passing through the agricultural products, and the internal quality of the agricultural products can be obtained from the light amount according to the measured wavelength band, including relevant information such as sugar content, acidity, honey disease, and internal rot.

[0011] Furthermore, the light guiding component gathers the light emitted from the light source and guides the light so that it can be concentrated on the agricultural products; it is installed between the above-mentioned light-emitting component and the agricultural products, and has an incident port for emitting light directly irradiated from the above-mentioned light source and receiving light reflected by the above-mentioned reflector, and an exit port for light entering through the above-mentioned incident port, forming a reflecting surface that gathers the light entering from the above-mentioned incident port through the above-mentioned exit port in the interior between the above-mentioned incident port and the above-mentioned exit port, the above-mentioned incident port is installed in front of the light-emitting component facing the agricultural products, and the above-mentioned exit port is installed on one side of the above-mentioned agricultural products, and a light guiding component made of a material containing a metal substance is provided.

[0012] Furthermore, the frame includes a measuring chamber, and the light-emitting component, light-receiving component, light-guiding component and heat-ray cutting component are installed in the measuring chamber. The measuring chamber is configured to cover the transfer component for placing and transferring the agricultural products. The transfer component has corresponding entrances located in the upstream direction of transfer and exits located in the downstream direction of transfer. The measuring chamber is configured so that the transfer component and the agricultural products placed thereon do not conflict with each other, and the lower parts of both sides of the measuring chamber are combined with frames with independent supports provided on the outside of both sides of the transfer component.

[0013] Furthermore, the first solar film and the second solar film are respectively installed on the edge of the light guiding component and the edge of the light receiving component. The first solar film and the second solar film are installed as close as possible on both sides of the agricultural products. The first solar film and the second solar film are made of flame-retardant fabrics and similar materials that can withstand high heat.

[0014] Furthermore, a front solar film and a rear solar film are respectively installed inside the downstream and upstream directions of the agricultural products to be measured in the measuring room, and the front solar film and the rear solar film form at least one cutting component in the up and down directions perpendicular to the ground.

[0015] Furthermore, the first solar film is formed with an opening part so that the light from the light emitting part can irradiate the agricultural products, and the second solar film is formed with an opening part so that the light passing through the agricultural products can be incident on the light receiving part.

[0016] Furthermore, a cooling component is provided on the outside of the measuring chamber, and the cooling component is installed on the outside of the light source of the light-emitting component to release the heat emitted by the light source to the outside. A first temperature sensor is provided near the light source to measure the temperature around the light source. If the temperature around the light source rises above a predetermined level, the power supply to the light source is cut off for control. A second temperature sensor is also provided inside the measuring chamber to sense the temperature of agricultural products in a non-contact manner.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows: the non-destructive agricultural product internal quality measurement device provided by the present solution can prevent the quality damage of agricultural products caused by overheating while maintaining high measurement precision. In addition, it can be added to an existing screening device, such as a screening device based on weight measurement, which can significantly improve the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Figures (I), (II), (III) and (IV) are schematic diagrams of the configuration of light source components and light detection components of the full-transmission type, semi-transmission type, direct reflection type and diffuse reflection type, respectively; Figure 2is a partial perspective view of a non-destructive agricultural product internal quality determination device according to an embodiment of the present invention; Figure 3 yes Figure 2 The front view of the non-destructive internal quality measurement device of agricultural products shown in the figure; Figure 4 yes Figure 2 A plan view of a non-destructive agricultural product internal quality determination device shown in FIG. Figure 5 is a perspective view of a light guide member according to an embodiment; Figure 6 is a plan view showing the configuration of a heat ray cutting material according to an embodiment; Figure 7 It is a diagram showing the arrangement of the light-emitting components and the light-receiving components in the full-transmission type and the approximate direction of the light; Figure 8 It is a diagram showing the arrangement of the light-emitting components and the light-receiving components in a semi-transmissive type and the approximate direction of light; Fig. 9 It is a diagram showing the arrangement of the light-emitting components and the light-receiving components in the reflective type and the approximate direction of the light; Fig.10 is a perspective view of a solar film fixing belt for attaching a solar film according to an embodiment; Fig.11 is a side view briefly showing a first solar film according to an embodiment; Fig.12 is a diagram showing the function of a light guide member according to an embodiment; Fig.13 is a perspective view of a non-destructive agricultural product internal quality measuring device according to another embodiment of the present invention; Fig.14 It is a display Fig.13 A plan view of the main components of the non-destructive agricultural product internal quality measurement device shown in FIG.

[0019] in, Figure 1 Here, a and a' are light source components, and b is a light detection component. Figure 2 In the middle, c is the direction in which the fruit moves.

[0020] In the accompanying drawings, 1, agricultural products, 2, agricultural products placement cup, 10, light-emitting component, 12, light source, 20, light-receiving component, 30, light guiding component, 30a, heat ray cutting component mounting hole, 40, heat ray cutting component, 51, first solar film, 51a, opening component, 52, second solar film, 53, first front solar film, 54, second front solar film, 55, first rear solar film, 56, second rear solar film, 60, agricultural products guiding component, 70, measuring chamber, 71, first solar film fixing belt, 72, second solar film fixing belt, 73, measuring chamber cover, 73a, opening component, 81, first cooling component, 82, vent, 92, second temperature sensor, 100, frame, 110, upper box, 120, lower box.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In this embodiment, Figures 2 to 4 It is a partially exploded stereoscopic view, a front view and a plan view of a non-destructive agricultural product internal quality measuring device according to an embodiment of the present invention.

[0024] The non-destructive agricultural product internal quality measuring device according to the embodiment comprises a light emitting component (10), a light receiving component (20), a light guiding component (30), and a heat ray cutting component (40).

[0025] The light-emitting component (10) is installed on one side facing a direction perpendicular to the agricultural product transfer direction. The light source of the light-emitting component (10) may be a halogen lamp (12). The halogen lamp (12) is an electric bulb in which halogen gas is injected to emit light in the wavelength region of visible light and infrared light. Compared with a general incandescent lamp, the halogen lamp has the advantages of longer life and more stable power. However, the light-emitting component (10) of the present invention is not limited thereto, and in fact, any light source that emits visible light or near-infrared light can be used.

[0026] Since halogen lamps have such advantages, halogen lamps are mainly used in existing agricultural product non-destructive screening machines. However, halogen lamps are of various types, such as reflector type and DC type, depending on their appearance. In existing agricultural product non-destructive screening machines, a simple reflector type (such as MR16) is used for focusing with a reflector hung on it. However, the size of the reflector type halogen lamp bulb is small, and the power is limited to a low power of less than 150W. It has the disadvantage that it can only be used for apples or pears, etc., and the transmitted light is very weak. Moreover, in the case of more than 150W, for example, the life of the reflector type halogen lamp that generates a power of 250W is rapidly shortened, and there are problems in practical application. Therefore, in order to obtain sufficient transmitted light, multiple lamps are used at the same time. In this case, the structure is large and complicated, and the light emitted from the outer lamp may leak.

[0027] As such, a high-power light source component for obtaining sufficient transmitted light poses an important problem that affects the level of prediction of the internal quality of agricultural products. The inventors of the present invention have proposed an embodiment using a DC halogen lamp (12) as a light source.

[0028] The DC type lamp is a long cylindrical type, and a high power of more than 1kw is possible, and the life is a long type of 1000-2000 hours. During this period, the DC type was not used due to the problem of high heat, fire hazard, and difficulty in focusing. Therefore, in the present invention, a DC type lamp is used, and the light guide component mentioned below is used to prevent exposure to diffused light due to accidental focusing of light and a heat ray cutoff component is used to cut off heat rays. In addition, safety devices such as checking the indoor temperature and preventing fire hazards are added, and a light source component with excellent performance can be formed even with a simple structure.

[0029] The light receiving component (20) is installed opposite to the light emitting component (10) in a direction perpendicular to the direction in which the agricultural products are conveyed. The light receiving component (20) is formed to receive light emitted from the light source and transmitted through the agricultural products. The light receiving component (20) is provided with a light sensor (not shown). The light sensor can be composed of a spectrophotometer that measures the amount of light at each wavelength. The optical fiber can be a single optical fiber or can form an optical fiber bundle. The light receiving component (20) plays the role of transmitting the incident light to the light sensor. Therefore, the light sensor is used to measure the size of the light transmitted through the agricultural products according to the wavelength band, and the internal quality of the agricultural products, such as sugar content, acidity, honey disease, internal decay and other related information, can be obtained from the light amount according to the measured wavelength band.

[0030] Although not shown in the drawings, as another embodiment, the light receiving unit can be installed in the direction where the lower part of the agricultural product at the measurement location and the light emitting component (10) intersect at right angles according to the transfer direction of the agricultural product. In particular, when the agricultural product is a large watermelon, in such a semi-transmissive configuration, the distance that the light emitted from the light emitting component should pass through the watermelon is relatively long, so it is necessary to have the light guiding component (30) and the heat ray cutting component (40) mentioned below. In this case, the center lower part of the tray on which the watermelon is placed and transported should be formed with an opening.

[0031] A light guide component (30) is installed in front of the light receiving component (20) of the light emitting component (10). The light guide component (30) generally gathers the light emitted from the light source (12) and guides the light so that it can be concentrated on the agricultural products. The DC halogen lamp (12) is an elongated cylindrical lamp, and the light not only spreads out in a radial shape, but also has a relatively large space for the light to spread out because it is very long in the length direction. For this reason, the shape of the light guide component (20) becomes narrower towards the edge (refer to Figure 5 and Figure 6 ), the material of the light guide component (30) can be aluminum or stainless steel with outstanding radioactivity. According to the light guide component (30), the light emitted from the light source is gathered to enter the interior of the agricultural product, and the ratio of incident light to transmitted light, that is, the light efficiency is increased, and the signal-to-noise ratio (S / N ratio) is improved, which has the effect of improving the measurement precision of the non-destructive internal quality measurement device of the agricultural product. In particular, compared with the hemispherical reflector used on the bulb-type halogen lamp, the light guide component (30) of the present invention improves the efficiency of light, so that the light emitted from the DC halogen lamp (12) of the light source can be efficiently gathered in a specific area of ​​the agricultural product.

[0032] refer to Figure 6 A heat ray cutoff component (40) is installed on the light guide component (30). The heat ray cutoff component (40) measures the internal quality of agricultural products from the light emitted by the light source, but is not actually used to cut off heat rays that may burn agricultural products. The non-destructive internal quality measuring device uses the principle that when light passes through agricultural products, the sugar content, acidity and other components in the agricultural products absorb light of a specific wavelength. After measuring the amount of transmitted light according to the wavelength band, it is substituted into the agricultural product internal quality measurement model developed in advance to calculate the internal quality of the agricultural products.

[0033] Therefore, when measuring the internal quality of agricultural products, the light source used should stably emit sufficient intensity and light quantity in the desired wavelength band. In particular, when using the full transmission method, generally speaking, the distance that light should be transmitted is longer than that of the semi-transmission method or the radiation method, and the transmitted light is weak. Therefore, in order to obtain sufficient intensity of light, a high-power light source is used (refer to Figure 7 , 8and 9). On the other hand, in the semi-transmissive type, when the volume of agricultural products is large and the distance that light should pass through is long, a high-power light source can also be used to obtain a sufficient intensity of light. There is a risk of sunburn of agricultural products when irradiated with light from a high-power light source. Accordingly, the inventors of the present invention cut off the heat rays in the wavelength range used to remove the internal quality of agricultural products, thereby preventing overheating of agricultural products. Taking this point into consideration, the non-destructive agricultural product internal quality measuring device of the present invention is equipped with a heat ray cutting component (40).

[0034] According to an embodiment, the non-destructive agricultural product internal quality measuring device of the present invention having a heat ray cutting component (40) is used Figure 7 The fully transparent non-destructive agricultural product internal quality measurement method shown in the figure. The fully transparent light-emitting component (10) and the light-receiving component (20) place the agricultural product in the middle and are arranged in opposite directions. A part of the light emitted by the light-emitting component (10) is transmitted through the agricultural product (1) and is also incident on the light-receiving component (20) (A1), and a part of the light is incident on the agricultural product (1), and after being scattered, refracted or radiated, it is also incident on the light-receiving component (20) (A2). After being incident on the agricultural product (1), it is refracted and transmitted to the outside (B2). After colliding and reflecting on the surface of the agricultural product (1), it is incident on the light-receiving component (20) again (B2). The fully transparent light-emitting component (10) and the light-receiving component (20) are installed at positions corresponding to each other, and the probability of light that transmits the agricultural product (1) and best represents the internal quality information of the agricultural product (1) being incident on the light-receiving component (20) is the highest. That is, A1 and A2 are the lights that best represent the internal quality of the agricultural product (1), and B1 and B2 are lights that are relatively poor at representing the internal quality of the agricultural product (1). In the full penetration method, the ratio of A1 to A2 is higher than that of the other two methods. Therefore, theoretically, the precision of non-destructive internal quality measurement is the highest compared to the other two methods. Figure 8 In the case of the semi-transmissive type shown, the light emitting component (10) and the light receiving component (20) are arranged at right angles to each other, so the probability that the light (A1, A2) emitted from the light emitting component (10) and transmitted through the agricultural product (1) enters the light receiving component (20) in the right angle direction is lower than that of the full transmission type. That is, the ratio of B1 to B2 is higher than that of the full transmission type. Therefore, the proportion of the light amount representing the internal quality information of the agricultural product (1) in the light amount measured by the light sensor becomes lower, so the internal quality measurement accuracy is lower than that of the full transmission type. Fig. 9In the case of the reflection type shown, the light emitting component (10) and the light receiving component (20) are arranged in the same direction or in a close direction, so the light emitted from the light emitting component (10) is directly reflected on the outer surface of the agricultural product (1) and is more likely to return to the light receiving component (20). That is, the ratio of light (A) that well represents the internal quality of the agricultural product (1) is the lowest compared to the other two methods. Therefore, the precision of the internal quality test is generally lower than that of the full transmission type and the semi-transmission type. Therefore, according to the non-destructive agricultural product internal quality measurement device of the present invention, the irradiated light has the longest path through the interior of the agricultural product (1), so the remaining transmitted light that is absorbed can best represent the information of the internal quality of the agricultural product (1). However, because a high-power light source should be used to transmit the agricultural product (1) in order to travel a long path, the problem of quality damage caused by high heat that cannot be avoided in the full transmission type is solved, and the precision of internal quality measurement is improved.

[0035] The heat ray cutter (40) is made of, for example, a multilayer coating having optical properties such as quartz, TiO2, SiO2, etc. However, the protection scope of the present invention is not limited thereto. As mentioned above, a mirror or filter that can cut off heat rays within the range to be measured without affecting the internal quality also falls within the protection scope of the present invention.

[0036] According to the embodiment, the light emitting component (10), light receiving component (20), light guiding component (30) and heat ray cutting component (40) described above are installed in the measuring chamber (70). The measuring chamber (70) is configured to cover the transfer component on which the agricultural products are placed and transferred. The transfer component has corresponding inlets (in the upstream direction of transfer) and outlets (in the downstream direction of transfer). The measuring chamber (70) is configured so that the transfer component and the agricultural products placed thereon do not conflict with each other. Moreover, the lower parts of both sides of the measuring chamber (70) are combined with the frames (100) independently supported on the outer sides of both sides of the transfer component, and can be independently added to the transfer component and the screening device having the transfer component. In particular, the light emitting component (10) and the light receiving component (20) are arranged on both sides of the agricultural products in a full-transmission type, so that it is also applicable to the existing screening device without holes in the agricultural product placement cup. For example, only the weight of the agricultural products is used as a screening factor, and the non-destructive agricultural product internal quality measuring device of the present invention can be added to the existing screening device that measures the grade of the agricultural products and screens them. Therefore, by adding a non-destructive agricultural product internal quality measuring device to the existing equipment, the range of agricultural products suitable for grade screening based on internal quality is significantly expanded.

[0037] According to the non-destructive agricultural product internal quality measuring device of the embodiment, the first solar film (51) and the second solar film (52) can be additionally installed. The first solar film (51) and the second solar film (52) can be made of flame-retardant fabrics and similar materials that can withstand high heat. The first solar film (51) is installed next to one side of the agricultural product (the light guide component (30) side in the direction perpendicular to the agricultural product transfer direction), and the second solar film (52) can be installed on the other side of the agricultural product. In particular, the first solar film (51) and the second solar film (52) can be installed as close as possible on both sides of the agricultural product. Therefore, in the case of the first solar film (51), the incidence of light emitted from the light source and diffused by the light guide component (30) is cut off and is only allowed to be incident on the area corresponding to the agricultural product. Therefore, the separation distance between the first solar film (51) and the second solar film (52) can be changed according to the type of agricultural product, and the first solar film (51) and the second solar film (52) are combined with the measuring chamber (70).

[0038] like Fig.10 As shown, an opening part can be formed on the first solar film (51), and the opening part is formed corresponding to the area where the light emitted from the light-emitting part (10) irradiates the agricultural products. Similarly, the second solar film (52) forms an opening part in the area corresponding to the light-receiving part (20). Therefore, the first solar film (51) and the second solar film (52) cut off the light from other areas except the area where the light is incident on the agricultural products and the area where the light is incident on the light-receiving part (20). Therefore, Figure 6 In the structure shown, the possibility of leakage light (B1) entering the light receiving component (20) is reduced, and the accuracy of non-destructive internal quality measurement can be improved.

[0039] Insertion of the first and second solar films (51, 52) Fig. 9 The solar film fixing belt (72a, 72b) shown in the figure is fixed, and the solar film fixing belt (72) is combined with the inside of the measuring chamber (70), and can be attached to the inside of the measuring chamber (70). That is, the solar film fixing belt (71, 72) attached to the solar film (51, 52) is combined inside the measuring chamber (70), so that the first or second solar film (51, 52) is as shown. Figure 3 As shown, the first or second (51, 52) can be directly connected to the measuring chamber (70) according to the conveying direction of the agricultural products.

[0040] According to other non-destructive agricultural product internal property measuring devices of the embodiments, a first solar film (53) and a first rear solar film (55) can be additionally provided. The first front solar film (53) is provided with an outlet in the downstream direction (the direction in which agricultural products are transferred) of the measuring chamber (70), and the first rear solar film (55) can be provided with an inlet in the upstream direction (the direction in which agricultural products are transferred and come) of the measuring chamber (70). The first front solar film (53) and the first rear solar film (55) form a cutting part. Due to the formation of the cutting part, the first front solar film (53) and the second rear solar film (56) shield the inlet and outlet of the measuring chamber (70) at the moment when they are not in contact with the agricultural products, thereby preventing the entry of faint light into the measuring chamber (70) to the greatest extent. The number of cutting parts will vary according to the situation.

[0041] like Figure 4 As shown, the length of the measuring chamber (70) (the length in the direction of agricultural product transfer) determines the size of the measuring chamber (70) so as to accommodate three agricultural product placement cups. Thus, when the agricultural product to be measured is located at the exact center between the light-emitting component (10) and the light-receiving component (20), the first front solar film (53) and the first rear solar film (not shown) can be arranged between the agricultural product and the agricultural product. In this way, the first front solar film (53) and the first rear solar film are in contact with the agricultural product, and even if they are not lifted, the incident light from the outside can be minimized if the solar film is not lifted at the time and place of measurement.

[0042] According to other embodiments, although not shown in the drawings, the above-mentioned cutting parts and opening parts can be formed on the first front solar film and the first rear solar film.

[0043] The non-destructive agricultural product internal quality measuring device according to the embodiment further comprises a first cooling component (81). Figure 1 , installed outside the measuring chamber (70) near the light source of the first cooling component (81), and dissipating the heat generated by the light source to the outside. The first cooling component (81) can be a cooling fan. The first cooling component (81) can be controlled to operate when the light source becomes brighter. In this embodiment, the non-destructive agricultural product internal quality measuring device not only has the first cooling component (81), but also has a first temperature sensor. The first temperature sensor can measure the temperature around the light source. The first temperature sensor can be a contact or non-contact temperature sensor that measures the temperature of the outer surface of the measuring chamber (70) attached to the measuring chamber (70) or measures the temperature around the measuring chamber (70). The first temperature sensor can be used to detect whether the temperature around the light source rises above a predetermined temperature. In this case, due to abnormal operation of the cooling fan, the light source is extinguished, and the first cooling component (81) can be controlled to perform detection.

[0044] The non-destructive agricultural product internal quality measuring device according to the embodiment further comprises a second cooling member (not shown). The second cooling member is attached to a small hole (73a) in the cover of the measuring chamber (70) and may be a cooling fan. The second cooling member transmits relatively cool air from the outside to the inside of the measuring chamber (70) to prevent the measuring target agricultural product and parts related to the light source from overheating.

[0045] According to the embodiment, the non-destructive agricultural product internal quality measuring device may also have a second temperature sensor (92). The second temperature sensor (92) is used to measure the temperature of the agricultural product. The second temperature sensor (92) may be a non-contact temperature sensor. The second temperature sensor (92) is used to determine the internal quality of the agricultural product and may be installed before the measurement location. The reason for using the second temperature sensor (92) to measure the internal temperature of the agricultural product is as described above. The amount of light absorbed according to the wavelength band is measured, and the measured data is substituted into a modeling formula such as sugar content to calculate the sugar content. This modeling formula for sugar content will have some errors depending on the temperature, so it is necessary to correct the sugar content value according to the temperature of the agricultural product. Similarly, by measuring the temperature of the agricultural product and correcting the modeling formula for sugar content, it is more likely to achieve correct non-destructive internal quality measurement.

[0046] The non-destructive agricultural product internal quality measuring device according to the embodiment further comprises an agricultural product guiding component (60). Fig.12 The agricultural product guide component (60) is arranged at the edge end of the agricultural product of the optical fiber. The agricultural product guide component (60) guides the agricultural product that is not normally placed to the measurement location. That is, when the agricultural product is not normally present in the agricultural product placement cup (2) (the starting positions of t1 and t2), it is still transported and guided to the starting position of the normal position (t3) according to the agricultural product guide component (60) at the measurement location. As a result, when arriving at the non-destructive internal quality measurement location, the error is reduced to ensure that the distance (d2) between the light-emitting component (10) and the agricultural product and the distance (d1) between the light-receiving component (20) and the agricultural product are as uniform as possible.

[0047] The agricultural product guiding component (60) is not only arranged on the side of the light receiving component (20), but also on the side of the light emitting component (10). The agricultural product guiding component (60) not only corrects the position of the transferred agricultural product, but also plays a role in protecting the light receiving component (20) from collision with the agricultural product. Because light leakage from the side of the light receiving component (20) may cause problems, in order to prevent such light leakage, the end of the light receiving component (20) is installed closer to the edge of the agricultural product, so there is a possibility of collision with the agricultural product.

[0048] Fig.13 and 14 It is a stereoscopic view and a plan view of the non-destructive internal quality measurement of agricultural products according to another embodiment of the present invention.

[0049] The non-destructive agricultural product internal quality measuring device according to this embodiment is compared with Figure 2 The embodiment shown in the figure also has an upper box (110), a second front solar film (54), a second rear solar film (56), and a third cooling component (82).

[0050] The second front solar film (54) is attached to the outlet on the front side (downstream direction) of the upper box (110), and the second rear solar film (56) is attached to the inlet on the rear side (upstream direction) of the upper box (110). As shown in the figure, a cutting part (54a) can be formed on the second front solar film (54). Similarly, a cutting part can also be formed on the second rear solar film (56). As an alternative embodiment, an opening part and a cutting part can be formed on the second front solar film (54) and the second rear solar film (56) at the same time. The second front solar film (54) and the second rear solar film (56) together with the upper box provide a closed environment inside the measuring chamber (70), thereby reducing the influence of stray light and improving the measurement precision.

[0051] The upper box (110) and the third cooling component attached thereto, the second front solar film (54) and the second rear solar film (56) are independently supported by the frame (100) on both sides of the outer edge of the transfer component and are combined with the lower box (120) so as not to interfere with the movement of the transfer component. Fig.13 The non-destructive agricultural product internal quality measuring device shown in the figure can be independently installed on the already installed transfer component and the screening device equipped with the transfer component. Therefore, the non-destructive agricultural product internal quality measuring device can be added to the existing equipment, and the range of agricultural product grade screening according to internal quality can be significantly expanded.

[0052] The present invention is described with reference to the embodiments shown in the drawings, but this is only exemplary. A person with common sense in the technical field can derive various modifications and other equivalent embodiments. For example, the non-destructive agricultural product internal quality measurement device according to the present invention is not only applicable to fruits, but also to fruit vegetables and root vegetables including vegetables such as tomatoes or carrots. Therefore, the true technical protection scope of the present invention should be determined according to the matters recorded in the attached claims.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0055] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A non-destructive agricultural product internal quality measuring device, comprising a frame, characterized in that: The machine also comprises a light emitting component (10), a light receiving component (20), and a light guiding component (30) arranged on a frame, wherein the light emitting component (10) is installed on one side of a direction intersecting at right angles with a transfer direction of the agricultural products, the light receiving component (20) is installed in a direction intersecting at right angles with a transfer direction of the agricultural products and is installed opposite to the light emitting component (10), light emitted from a light source of the light emitting component (10) and passing through the agricultural products is received by the light receiving component (20), the light guiding component (30) is installed in front of the light receiving component (20) side of the light emitting component (10), the light guiding component (30) is installed between the light emitting component (10) and the agricultural products, and a heat ray cutting unit (40) is installed on the light guiding component (30), the heat ray cutting unit (40) is used to cut off heat rays in the light emitted from the light source that may cause burns to the agricultural products.

2. The non-destructive agricultural product internal quality measuring device according to claim 1, characterized in that: The light receiving component (20) is formed to receive light emitted from a light source and transmitted through the agricultural product. The light receiving component (20) includes a light sensor and an optical fiber. The light receiving component (20) serves to transmit the incident light to the light sensor. The light sensor detects the amount of light according to the wavelength band of the incident light. The optical fiber is used to receive the light and transmit it to the light sensor. The agricultural product installed and transferred on the edge end of the agricultural product of the optical fiber is at the original position of the measurement location, and includes an agricultural product guiding component having a shape for guiding abnormally placed agricultural products to the measurement location.

3. The non-destructive agricultural product internal quality measuring device according to claim 2, characterized in that: The light source of the light-emitting component (10) is a light source that emits visible light or near-infrared light. The light-emitting component (10) is a DC halogen lamp (12). The light-emitting component (10) emits light with a total power of more than 500 W and has a reflector installed around at least a portion of the rear of the light source.

4. The non-destructive agricultural product internal quality measuring device according to claim 3, characterized in that: The light sensor measures the size of the light according to the wavelength band that passes through the agricultural products. According to the measured wavelength band, the internal quality of the agricultural products can be obtained from the amount of light, including relevant information such as sugar content, acidity, honey disease, and internal rot.

5. The non-destructive agricultural product internal quality measuring device according to claim 4, characterized in that: The light guiding component (30) gathers the light emitted from the light source (12) and guides the light so that it can be concentrated on the agricultural products; an inlet is installed in front of the light emitting component (10) facing the agricultural products, and an outlet is installed on the side of the agricultural products, the light irradiated from the light source and the light reflected by the reflector are received by the inlet, and the light entering through the inlet is emitted. The interior between the inlet and the outlet allows the light entering from the inlet to be gathered through the outlet to form a reflecting surface.

6. The non-destructive agricultural product internal quality measuring device according to claim 5, characterized in that: The frame includes a measuring chamber, the light emitting component (10), the light receiving component (20), the light guiding component (30) and the heat ray cutting component (40) are installed in the measuring chamber (70), the measuring chamber (70) is configured to cover a transfer component for placing and transferring agricultural products, the transfer component respectively having corresponding inlets located in the upstream direction of transfer and outlets located in the downstream direction of transfer, the measuring chamber (70) is configured so that the transfer component and the agricultural products placed thereon do not conflict with each other, and the lower parts of both sides of the measuring chamber (70) are combined with frames (100) provided with independent supports on the outside of both sides of the transfer component.

7. The non-destructive agricultural product internal quality measuring device according to claim 6, characterized in that: The first solar film (51) and the second solar film (52) are respectively installed on the edge of the light guiding component (30) and the edge of the light receiving component (20). The first solar film (51) and the second solar film (52) are installed as close as possible on both sides of the agricultural product. The first solar film (51) and the second solar film (52) are made of flame-retardant fabrics and similar materials that can withstand high heat.

8. The non-destructive agricultural product internal quality measuring device according to claim 7, characterized in that: The measuring room has a front solar film and a rear solar film installed inside the downstream and upstream directions of the agricultural products to be measured, respectively. The front solar film and the rear solar film form at least one cutting component in the up and down directions perpendicular to the ground.

9. The non-destructive agricultural product internal quality measuring device according to claim 8, characterized in that: The first solar film (51) is formed with an opening component that allows light from the light-emitting component (10) to irradiate the agricultural products, and the second solar film (52) is formed with an opening component that allows light that passes through the agricultural products to be incident on the light-receiving component (20).

10. The non-destructive agricultural product internal quality measuring device according to claim 9, characterized in that: A cooling component is provided on the outside of the measuring chamber, and the cooling component is installed on the outside of the light source of the light-emitting component to release the heat emitted by the light source to the outside. A first temperature sensor is provided near the light source to measure the temperature around the light source. A second temperature sensor is also provided inside the measuring chamber to sense the temperature of agricultural products in a non-contact manner.

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