Nondestructive agricultural product internal quality measuring device

Abstract

The utility model 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 utility model 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 utility model belongs to the technical field of non-destructive detection of internal quality of agricultural products, and specifically refers to a device for measuring the internal quality of non-destructive agricultural products. Background Art

[0002] For the high added value of agricultural products, operations of screening the harvested agricultural products according to quality grades should be accompanied. All along, in the post-harvest processing process, the quality of agricultural products is mostly screened only by weight or color, etc. In many cases, such size or color cannot well represent the quality of agricultural products, and there is also a problem that the determination accuracy is very subjective.

[0003] Therefore, for more objective and accurate grade determination, there has been systematic research on non-destructively measuring the internal quality of agricultural products. The non-destructive internal quality measuring device uses the principle of absorbing light of a specific wavelength for components such as the sugar content and acidity inside agricultural products. It mainly makes near-infrared light pass through agricultural products, measures the amount of light according to the wavelength band of the transmitted light, and thus measures the internal quality such as the sugar content and acidity of fruits.

[0004] The non-destructive internal quality measuring device can be classified into a full-transmission type and a semi-transmission type according to the configuration of the light-emitting component and the light-receiving component. Refer to Figure 1 In (Ⅰ) to (Ⅳ) in the figure, the full-transmission type is a way that the light-emitting component and the light-receiving component place the agricultural product in the middle and are arranged oppositely to each other. The light that comes out from the light-emitting component, passes through the agricultural product, and goes out in the opposite direction is received by the light-receiving component. The semi-transmission type is a way that the light-emitting component and the light-receiving component are installed approximately at a right angle to cross. The light that comes out from the light-emitting component, passes through the agricultural product, and goes out in a right-angle cross direction is received by the light-receiving component. The reflection type is a way that the light-emitting component and the light-receiving component are installed at the same position. The light that comes out from the light-emitting component, passes through the agricultural product tortuously, and comes back is received by the light-receiving component.

[0005] Generally speaking, it is generally considered that the transmission type can measure more precisely than the reflection type. However, the transmitted light is very weak compared with the reflected light. Therefore, it is necessary to pay attention to a larger power light source for the transmission type than the reflection type and the resulting scald of agricultural products. Therefore, due to such difficulties, the use of the full-transmission type is restricted. Content of the Utility Model

[0006] In view of the above situation, to overcome the defects of the prior art, the utility model provides a non-destructive agricultural product internal quality measuring device that can suppress the damage of agricultural products caused by high heat, maximize the suppression of stray light other than the light that passes through the agricultural product and emits, can perform correct internal configuration determination, and can be additionally installed on an existing screening device without changing the existing screening device, which is convenient to use.

[0007] The technical solution adopted by the present utility model is as follows: A non-destructive internal quality determination device for agricultural products of the present utility model includes 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 in a direction perpendicular to the direction of agricultural product transfer. The light-receiving component is installed in a direction perpendicular to the direction of agricultural product transfer 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. A heat ray cutting component is installed on the light-guiding component, and the heat ray cutting component is used to cut off the heat rays in the light emitted from the light source that can scald the agricultural product.

[0008] Further, the light-receiving component is formed to receive the light emitted from the light source and passing through the agricultural product. The light-receiving component includes a light sensor and an optical fiber. The light-receiving component functions to convey the incident light to the light sensor. The light sensor measures the light quantity according to the wavelength band of the incident light. The optical fiber is used for receiving light and guiding it into the light sensor. The agricultural product installed and transferred at the edge end of the optical fiber at the original position of the measurement location includes an agricultural product guiding component having a shape for guiding the abnormally placed agricultural product to the measurement location. In a preferred embodiment, the above-mentioned light-receiving component is installed corresponding to the above-mentioned side based on the above-mentioned transfer direction.

[0009] Further, the light source of the light-emitting component uses visible light or a light source that emits near-infrared rays. The light-emitting component uses a DC-type halogen lamp. The light-emitting component is a light source with an output power of 500 W or more and has a reflector installed around at least a part of the rear of the light source.

[0010] Further, the light sensor measures the size according to the wavelength band of the light passing through the agricultural product. According to the measured wavelength band, the internal quality of the agricultural product, including information related to sugar content, acidity, honey disease, and internal rot, can be obtained from the light quantity.

[0011] Further, while collecting the light emitted from the light source, the light-guiding component guides the light so that it can be concentrated on the agricultural product; installed between the above-mentioned light-emitting component and the agricultural product, it has an incident port for emitting the light directly irradiated from the above-mentioned light source and receiving the light reflected by the above-mentioned reflector, and an exit port for the light entering through the above-mentioned incident port. A reflecting surface is formed inside between the above-mentioned incident port and the above-mentioned exit port to collect the light entering through the above-mentioned incident port through the above-mentioned exit port. The above-mentioned incident port is installed in front of the light-emitting component facing the agricultural product, and the above-mentioned exit port is installed on the side of the above-mentioned agricultural product, providing a light-guiding component made of a material containing a metal substance.

[0012] Furthermore, a measurement chamber is included on the frame. The light-emitting component, light-receiving component, light-guiding component, and heat-ray cutting component are installed in the measurement chamber. The measurement chamber is configured to mask the transfer component for placing and transferring agricultural products. The transfer component respectively has a corresponding inlet in the upstream direction of the transfer and an outlet in the downstream direction of the transfer. The measurement chamber is configured such that the transfer component and the agricultural products placed thereon do not conflict, and the lower parts on both sides of the measurement chamber are combined with frames independently supported on the outer sides of both sides of the transfer component.

[0013] Furthermore, a first solar film and a 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 product. The first solar film and the second solar film are made of flame-retardant fabrics and similar materials that can resist high heat.

[0014] Furthermore, a front solar film and a rear solar film are respectively installed inside the measurement chamber in the downstream direction and upstream direction of the agricultural product to be measured. The front solar film and the rear solar film form at least one cutting component in the vertical up-and-down direction perpendicular to the ground.

[0015] Furthermore, an opening component is formed on the first solar film to allow the light emitted from the light-emitting component to irradiate the agricultural product, and an opening component is formed on the second solar film to allow the light transmitted through the agricultural product to enter the light-receiving component.

[0016] Furthermore, a cooling component is provided outside the measurement chamber, and the cooling component is installed outside 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 measurement chamber to non-contact sense the temperature of the agricultural product.

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

[0018] Figure 1 In the drawings, FIGS. (Ⅰ), (Ⅱ), (Ⅲ), and (Ⅳ) are respectively schematic diagrams of the configurations of the light source components and light detection components in the full-transmission type, semi-transmission type, direct reflection type, and diffuse reflection type.

[0019] Figure 2is a partial perspective view of a non-destructive agricultural product internal quality measurement device according to an embodiment of the present utility model;

[0020] Figure 3 is Figure 2 a front view of the non-destructive agricultural product internal quality measurement device illustrated in;

[0021] Figure 4 is Figure 2 a plan view of the non-destructive agricultural product internal quality measurement device illustrated in;

[0022] Figure 5 is a perspective view of a light guiding member according to an embodiment;

[0023] Figure 6 is a plan view showing the arrangement of a heat ray cutting material according to an embodiment;

[0024] Figure 7 is a diagram showing the arrangement of a light emitting member and a light receiving member and the general direction of light in the fully transmissive type;

[0025] Figure 8 is a diagram showing the arrangement of a light emitting member and a light receiving member and the general direction of light in the semi-transmissive type;

[0026] Figure 9 is a diagram showing the arrangement of a light emitting member and a light receiving member and the general direction of light in the reflective type;

[0027] Figure 10 is a perspective view of a solar film fixing band for solar film attachment according to an embodiment;

[0028] Figure 11 is a side view briefly showing a first solar film according to an embodiment;

[0029] Figure 12 is a diagram showing the function of a light guiding member according to an embodiment;

[0030] Figure 13 is a perspective view of a non-destructive agricultural product internal quality measurement device according to another embodiment of the present utility model;

[0031] Figure 14 is showing Figure 13 a plan view of the main components of the non-destructive agricultural product internal quality measurement device illustrated in.

[0032] Among them, Figure 1 in, a and a' are light source components, and b is a light detection component. Figure 2 in, c is the fruit moving direction.

[0033] In the accompanying drawings, 1 is agricultural produce, 2 is a cup for placing agricultural produce, 10 is a light-emitting component, 12 is a light source, 20 is a light-receiving component, 30 is a light-guiding component, 30a is a mounting hole for a heat-ray cutting component, 40 is a heat-ray cutting component, 51 is a first solar film, 51a is an opening component, 52 is a second solar film, 53 is a first front solar film, 54 is a second front solar film, 55 is a first rear solar film, 56 is a second rear solar film, 60 is an agricultural produce guiding component, 70 is a measurement chamber, 71 is a first solar film fixing strap, 72 is a second solar film fixing strap, 73 is a measurement chamber lid, 73a is an opening component, 81 is a first cooling component, 82 is a ventilation opening, 92 is a second temperature sensor, 100 is a frame, 110 is an upper box, and 120 is a lower box.

[0034] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] In this embodiment, Figures 2 to 4 are a partially exploded perspective view, a front view, and a plan view of a non-destructive internal quality measurement device for agricultural produce according to an embodiment of the present utility model.

[0037] The non-destructive internal quality measurement device according to the embodiment includes a light-emitting component (10), a light-receiving component (20), a light-guiding component (30), and a heat-ray cutting component (40).

[0038] The light-emitting component (10) is installed on one side in a direction perpendicular to the direction of agricultural produce transfer. As the light source of the light-emitting component (10), a halogen lamp (12) can be used. The halogen lamp (12) injects halogen gas into the electric bulb and emits light in the visible light and infrared wavelength regions. Compared with ordinary incandescent lamps, it has the advantages of longer lifespan and more stable power. However, the light-emitting component (10) of the present utility model is not limited thereto. In fact, any light source that emits visible light or near-infrared light can be used.

[0039] Due to such advantages of halogen lamps, halogen lamps are mainly used in existing non-destructive screening machines for agricultural products. However, halogen lamps come in various types such as reflector types and DC types according to their appearances. In existing non-destructive screening machines for agricultural products, a simple reflector type (such as MR16) with a reflector hung and used for light concentration is adopted. However, the size of the halogen lamp bulb of the reflector type is small, with a low power limited to below 150W for each one, being only applicable to the sizes of apples or pears, etc., and having the disadvantage of very weak transmitted light. Moreover, in the case of above 150W, for example, for a reflector type halogen lamp generating a power of 250W, the lifespan is shortened rapidly, and there are problems in practical application. Therefore, in order to obtain sufficient transmitted light, multiple lamps are used simultaneously. In this case, the structure is large and complex, and the light emitted from the outer lamps may leak.

[0040] In this way, the high-power light source components for obtaining sufficient transmitted light pose an important problem regarding the prediction level of the internal quality of agricultural products. The inventors of the present utility model have proposed an embodiment using a DC type halogen lamp (12) as the light source.

[0041] The DC type lamp is long cylindrical, and a high power of above 1kW is possible, and it is of a long lifespan type of 1000 - 2000 hours. During this period, due to the high heat of the DC type, there are risks of fire occurrence and problems of being not easy to concentrate light, so it has not been used. Therefore, in the present utility model, a DC type lamp is used, and in order to prevent the accidental concentration of light and for the following light guiding components for the exposure of the diffused light, and a heat ray cutting component for cutting off heat rays. In addition, safety devices such as adding the inspection of the indoor temperature and preventing fire risks are provided, and an excellent performance light source component can be constituted even with a simple structure.

[0042] The light receiving component (20) is installed in contrast with the light emitting component (10) in a direction perpendicular to the direction of agricultural product transfer. The light receiving component (20) is formed to receive the light emitted from the light source and transmitted through the agricultural product. 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 light quantity at respective wavelengths. The optical fiber can be a single optical fiber or can form an optical fiber bundle. The light receiving component (20) serves to convey the incident light to the light sensor. Therefore, the light sensor measures the magnitude according to the wavelength band of the light transmitted through the agricultural product, and relevant information such as the internal quality of the agricultural product, such as sugar content, acidity, honey disease, internal rot, etc., can be obtained from the light quantity according to the measured wavelength band.

[0043] Although not illustrated in the drawings, as another embodiment, depending on the transfer direction of the agricultural product, the light-receiving part can be installed in a direction perpendicular to the lower part of the agricultural product at the measurement location and the light-emitting component (10). 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. Therefore, it is necessary to have the light guide component (30) and the heat ray cut-off component (40) mentioned below. In this case, an opening should be formed in the center lower part of the tray for placing and transporting the watermelon.

[0044] The light guide component (30) is installed in front of the light-receiving component (20) side of the light-emitting component (10). While generally converging the light emitted from the light source (12), the light guide component (30) guides the light so that it can be concentrated on the agricultural product. The DC halogen lamp (12) is long cylindrical. The light not only spreads out radially, but also, due to being very long in the length direction, the space where the light spreads out is relatively large. For this reason, since 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 use aluminum or stainless steel with prominent radiation. According to the light guide component (30), the light emitted from the light source is gathered and made to enter the interior of the agricultural product, increasing the ratio of the incident light to the transmitted light, that is, increasing the light efficiency and improving the signal-to-noise ratio (S / N ratio), and having the effect of improving the measurement precision of the non-destructive internal quality measurement device for agricultural products. In particular, compared with the hemispherical reflector used on the bulb-type halogen lamp, the light guide component (30) of the present utility model improves the light efficiency, enabling the light emitted from the DC halogen lamp (12) of the light source to be efficiently converged in a specific area of the agricultural product.

[0045] Refer to Figure 6 , the heat ray cut-off component (40) is installed on the light guide component (30). The heat ray cut-off component (40) cuts off the heat rays that are actually not used for measuring the internal quality of the agricultural product from the light emitted from the light source and that would cause scalding to the agricultural product. The non-destructive internal quality measurement device uses the principle that when light passes through the agricultural product, components such as sugar content and acidity in the agricultural product absorb light of a specific wavelength. After measuring the amount of transmitted light according to the wavelength band, it is substituted into the internal quality measurement model formula of the agricultural product developed in advance to calculate the internal quality of the agricultural product.

[0046] Therefore, when measuring the internal quality of the agricultural product, the light source used should stably emit sufficient intensity and light quantity in the desired wavelength band region. In particular, in the case of adopting the full-transmissive type, generally speaking, compared with the semi-transmissive type or the radiation type, the distance that the light should pass through is longer and the transmitted light is weak. Therefore, in order to obtain sufficient intensity of light quantity, a light source with high power 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 through which light should pass is long, in order to obtain a sufficient amount of light with sufficient intensity, a high-power light source can also be used. When light is irradiated from a high-power light source, there is a risk of sunburn to agricultural products. Accordingly, the inventors of the present utility model cut off the thermal rays in the wavelength range used in the internal quality of agricultural products, and can prevent overheating of agricultural products. Considering such points, the non-destructive internal quality measurement device of the present utility model is provided with a thermal ray cutting member (40).

[0047] According to an embodiment, the non-destructive internal quality measurement device of the present utility model having a thermal ray cutting member (40) uses Figure 7 the full-transmissive non-destructive internal quality measurement method shown in the figure. The full-transmissive light-emitting member (10) and the light-receiving member (20) are arranged with the agricultural product placed in the middle and in opposite positions. A part of the light emitted from the light-emitting member (10) passes through the agricultural product (1) as it is and is also incident on the light-receiving member (20) (A1), a part is incident on the agricultural product (1), and after scattering, refraction or radiation, it is also incident on the light-receiving member (20) (A2). After refraction after being incident on the agricultural product (1), it passes through to the outside (B2). After colliding and reflecting on the surface of the agricultural product (1), it is incident on the light-receiving member (20) again (B2). The full-transmissive light-emitting member (10) and the light-receiving member (20) are installed at corresponding positions, and the probability that the light most representative of the internal quality information of the agricultural product (1) is incident on the light-receiving member (20) is the highest through the agricultural product (1). That is, the light of the A1 and A2 types is the light most representative of the internal quality of the agricultural product (1), and the B1 and B2 are the lights that relatively cannot well represent the internal quality of the agricultural product (1). In the full-transmissive type, the ratio of A1 and A2 is higher than the other two methods. Therefore, theoretically, the non-destructive internal quality measurement precision is the highest among the other two methods. On the contrary, in Figure 8 the case of the semi-transmissive type shown, the light-emitting member (10) and the light-receiving member (20) are arranged at right angles to each other. Therefore, the probability that the light (A1, A2) emitted from the light-emitting member (10) and passing through the agricultural product (1) enters the light-receiving member (20) in the right-angle crossing direction is lower than that of the full-transmissive type. That is, the ratio of B1 and B2 is higher than that of the full-transmissive type. Therefore, in the light amount measured by the light sensor, the proportion of the light amount representing the internal quality information of the agricultural product (1) becomes lower, and thus the internal quality measurement precision is lower than that of the full-transmissive type. Figure 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 proximate direction. Therefore, the light emitted from the light-emitting component (10) is directly reflected on the outer surface of the agricultural product (1), and the possibility of returning to the light-receiving component (20) again increases. That is, the ratio of the 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, in the non-destructive agricultural product internal quality measurement device according to the present utility model, the path of the irradiated light passing through the interior of the agricultural product (1) is the longest, and thus the transmitted light remaining after being absorbed can best represent the information on the internal quality of the agricultural product (1). However, since a high-power light source should be used to travel a long path and pass through the agricultural product (1), the problem of quality damage caused by the inescapable high heat in the full-transmission type is solved, and the precision of the internal quality measurement is improved.

[0048] The heat ray cutter (40) is made of, for example, multiple optical property multilayer coatings such as Quartz, TiO2, SiO2, etc. However, the protection scope of the present utility model is not limited thereto. As described above, a mirror or a filter that can cut heat rays within the range that does not affect the internal quality to be measured also belongs to the protection scope of the present utility model.

[0049] According to the embodiment, the above-described light-emitting component (10), light-receiving component (20), light guiding component (30), and heat ray cutting component (40) are installed in the measurement chamber (70). The measurement chamber (70) shields and configures the transfer component that places and transfers the agricultural product. The transfer component has corresponding inlets (transfer upstream direction) and outlets (transfer downstream direction) respectively. The measurement chamber (70) is configured such that the transfer component and the agricultural product placed thereon do not collide. Moreover, the lower parts on both sides of the measurement chamber (70) are combined with the frame (100) independently supported on the outer sides of both sides of the transfer component, and can be independently added and set on the already installed transfer component and the screening device equipped with the transfer component. In particular, in the full-transmission type, the light-emitting component (10) and the light-receiving component (20) are arranged on both sides of the agricultural product, so it is also applicable to the existing screening device without holes in the agricultural product placement cup. For example, only taking the weight of the agricultural product as the screening factor, the non-destructive agricultural product internal quality measurement device of the present utility model can be added and set on the existing screening device that measures and screens the grade of the agricultural product. Thus, the scope of application for adding the non-destructive agricultural product internal quality measurement device to the existing equipment and screening the grade of the agricultural product according to the internal quality is significantly increased.

[0050] The non-destructive agricultural product internal quality measurement device according to the embodiment can be additionally installed with a first solar film (51) and a second solar film (52). The first solar film (51) and the second solar film (52) are made of flame-retardant fabrics and similar materials that can resist high heat. The first solar film (51) is installed beside one side of the agricultural product (on the side of the light guiding component (30) 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 incident light emitted from the light source and diffused by the light guiding component (30) is cut off and 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 vary according to the type of agricultural product, and the first solar film (51) and the second solar film (52) are combined with the measurement chamber (70).

[0051] As Figure 10 shown, an opening component can be formed on the first solar film (51), and the opening component is formed corresponding to the area where the light emitted from the light emitting component (10) irradiates the agricultural product. Similarly, the second solar film (52) forms an opening component in the area corresponding to the light receiving component (20). Therefore, the first solar film (51) and the second solar film (52) cut off and remove the light in other areas of the area where the light is incident on the agricultural product and the area where the light is incident on the light receiving component (20). Therefore, Figure 6 in the structure shown, the possibility of the leaked light (B1) being incident on the light receiving component (20) decreases, and the non-destructive internal quality measurement precision can be improved.

[0052] The first and second solar films (51, 52) are inserted Figure 9 into the solar film fixing bands (72a, 72b) shown and fixed. The solar film fixing band (72) is combined with the inside of the measurement chamber (70) and can be attached to the inside of the measurement chamber (70). That is, the solar film fixing bands (71, 72) to which the solar films (51, 52) are attached are combined inside the measurement chamber (70). Therefore, the first or second solar film (51, 52) is arranged on the side of the agricultural product according to the agricultural product transfer direction as Figure 3 shown. Differently, the first or second (51, 52) can be directly combined inside the measurement chamber (70).

[0053] According to other embodiments of the non-destructive agricultural product internal property measuring device, a first front solar film (53) and a first rear solar film (55) can be additionally provided. The first front solar film (53) has an outlet disposed in the downstream direction (the agricultural product transfer direction) of the measurement chamber (70), and the first rear solar film (55) can have an inlet provided in the upstream direction (the direction in which the agricultural product is transferred and comes) of the measurement chamber (70). The first front solar film (53) and the first rear solar film (55) form a cutting member. Due to the formation of the cutting member, the first front solar film (53) and the second rear solar film (56) shield the inlet and outlet of the measurement chamber (70) at the moment when they do not contact the agricultural product, and can prevent the entry of weak light into the measurement chamber (70) to the greatest extent. The number of cutting members may vary according to circumstances.

[0054] As Figure 4 shown, the length of the measurement chamber (70) (the length in the agricultural product transfer direction) determines the size of the measurement chamber (70) so as to be able to accommodate three agricultural product placement cups. Thus, when the agricultural product to be measured is located at the exact center position between the light emitting member (10) and the light receiving member (20), the first front solar film (53) and the first rear solar film (not shown) can be provided between the agricultural products. In this case, the first front solar film (53) and the first rear solar film come into contact with the agricultural product, and even if not lifted, without lifting the solar film at the time and place of measurement, the weak light incident from the outside can be minimized.

[0055] According to other embodiments, although not shown in the drawings, both the above-mentioned cutting member and the opening member can be formed on the first front solar film and the first rear solar film.

[0056] The non-destructive agricultural product internal quality measuring device according to the embodiment further has a first cooling member (81). Referring to Figure 1 , it is installed outside the measurement chamber (70) near the light source of the first cooling member (81), and releases the heat emitted from the light source to the outside. The first cooling member (81) can be a cooling fan. The first cooling member (81) can be controlled to operate when the light source becomes bright. In this embodiment, the non-destructive agricultural product internal quality measuring device not only has the first cooling member (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 and non-contact temperature sensor that measures the temperature of the outer surface of the measurement chamber (70) attached to the measurement chamber (70) or measures the temperature around the measurement chamber (70). The first temperature sensor can detect whether the temperature around the light source rises above a predetermined temperature. In this case, since the operation of the cooling fan is abnormal, the light source is turned off, and the first cooling member (81) can be controlled for detection.

[0057] The non-destructive agricultural product internal quality measurement device according to the embodiment further includes a second cooling component (not shown). The second cooling component is attached to the small hole (73a) of the lid of the measurement chamber (70) and can be a cooling fan. The second cooling component conveys the relatively cooler air outside to the inside of the measurement chamber (70) to prevent the agricultural product to be measured and the parts related to the light source from overheating.

[0058] The non-destructive agricultural product internal quality measurement device according to the embodiment may further include 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) can be a non-contact temperature sensor. The second temperature sensor (92) can be installed before the measurement location for the purpose of determining the internal quality of the agricultural product. The reason for measuring the internal temperature of the agricultural product with the second temperature sensor (92) is as described above. The amount of light absorbed in accordance with the wavelength band is measured, and the measured data is substituted into a modeled formula for, for example, sugar content to calculate the sugar content. This modeled formula for sugar content has some errors according to the temperature. Therefore, 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 modeled formula for sugar content, it is more likely to achieve correct non-destructive internal quality measurement.

[0059] The non-destructive agricultural product internal quality measurement device according to the embodiment further has an agricultural product guiding component (60). Refer to Figure 12 , the agricultural product guiding component (60) is provided at the edge end of the agricultural product of the optical fiber. The agricultural product guiding component (60) guides the abnormally placed agricultural product to the measurement location. That is, when the agricultural product is abnormally present in the agricultural product placement cup (2) (at the starting positions of t1 and t2), it is still transported, and according to the agricultural product guiding component (60) at the measurement location, it is guided to the normal position (starting position of t3). Thus, when reaching 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 maximally unified.

[0060] The agricultural product guiding component (60) is provided not only 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 transported agricultural product but also serves to protect the light receiving component (20) in the collision with the agricultural product. Since there is a problem with light leakage on the side of the light receiving component (20), 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.

[0061] Figure 13 and 14 are the perspective view and plan view of the non-destructive measurement of the internal quality of agricultural products according to other embodiments of the present utility model.

[0062] The non-destructive internal quality measurement device for agricultural products according to this embodiment, compared with the embodiment illustrated in Figure 2 also has an upper box (110), a second front solar film (54), a second rear solar film (56), and a third cooling component (82).

[0063] The second front solar film (54) is attached to the outlet on the front (downstream direction) of the upper box (110), and the second rear solar film (56) is attached to the inlet on the rear (upstream direction) of the upper box (110). As shown in the figure, a cutting component (54a) can be formed on the second front solar film (54). Similarly, a cutting component can also be formed on the second rear solar film (56). As an alternative embodiment, an opening component and a cutting component can be formed on the second front solar film (54) and the second rear solar film (56) simultaneously. The second front solar film (54), the second rear solar film (56), and the upper box together provide a sealed environment inside the measurement chamber (70), thus reducing the influence of stray light and improving the measurement precision.

[0064] The outer edges on both sides of the upper box (110) and the third cooling component, the second front solar film (54), and the second rear solar film (56) attached thereto are independently supported by a frame (100) and combined with the lower box (120), without interfering with the operation of the transfer component. Thus, Figure 13 the illustrated non-destructive internal quality measurement device for agricultural products can be additionally and independently provided on the already provided transfer component and the screening device equipped with the transfer component. Therefore, by adding facilities to the existing equipment, the scope of application for screening agricultural product grades according to internal quality can be significantly expanded.

[0065] This utility model will be described with reference to the embodiment illustrated in the drawings, but this is only exemplary. Those with common knowledge in this technical field can derive various modifications and equivalent other embodiments therefrom. For example, the non-destructive internal quality measurement device for agricultural products according to this utility model is not only applicable to fruits, but also applicable to fruit vegetables and root vegetables including vegetables such as tomatoes or carrots. Therefore, the true technical protection scope of this utility model should be determined according to the matters recorded in the appended claims.

[0066] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0067] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0068] The above description of the present invention and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within 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 the frame, wherein the light emitting component (10) is installed on one side of a direction intersecting at right angles with the direction in which the agricultural products are conveyed, the light receiving component (20) is installed in a direction intersecting at right angles with the direction in which the agricultural products are conveyed and is installed opposite to the light emitting component (10), the light emitted from the 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 component (40) is installed on the light guiding component (30), and the heat ray cutting component (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) has 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 to guide 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) adopts a light source emitting visible light or near-infrared light, the light-emitting component (10) adopts a DC halogen lamp (12), the light-emitting component (10) is a light source with an output power of more than 500W 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 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 exits through the inlet. The light entering from the inlet is gathered through the outlet to form a reflection 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 entrances located in the upstream direction of transfer and exits 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 products. 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 part so that the light from the light-emitting part (10) can irradiate the agricultural products, and the second solar film (52) is formed with an opening part so that the light passing through the agricultural products can be incident on the light-receiving part (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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