TWI698634B - Object selecting apparatus - Google Patents

Abstract

Provided is an object selecting apparatus capable of accurately detecting occurrence of fungi. The object selecting apparatus includes: A light source means having a first light source unit emitting visible light, a second light source unit emitting near-infrared light and a third light source unit emitting ultraviolet light, and irradiating at least one kind of light among visible light, near-infrared light and ultraviolet light toward a object in moving; a detection means having a first detection unit for detecting visible light emitted from the first light source and irradiated on the object, a second detection unit for detecting near-infrared light emitted from the second light source and irradiated on the object, and a third detection unit for detecting ultraviolet light emitted from the third light source and irradiated on the object; a quality determing means having a first adequacy determing unit for determing whether or not the transmittance of the object is appropriate based on the detection result of the first detection unit, a second adequacy determining unit for determining whether or not the object is a foreign matter based on the detection result of the second detection unit, and a third adequacy determining unit for determining whether or not fungus is generated in the object based on the detection result of the third detection unit; and a moving direction changing means for determining whether or not the object in moving is a defective item based on at least one determination result of the determination results of the first adequacy determining unit, the second adequacy determining unit, the third adequacy determining unit and the fourth adequacy determining unit, and changing the moving direction of the object which has been determined as a defective item.

Description

Object sorting device

There is an object sorting device for determining the quality of grains such as rice.

As a device for judging the quality of grains such as rice, a granular body sorting device is well known. The granular body sorting device can detect foreign matter mixed in granular grains and judge the quality of grains. It is a device for sorting granular bodies (grains). This granular body sorting device mainly uses infrared light in the detection of foreign objects; and the quality judgment mainly uses visible light.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 11-51845 A

When rice and other grains are stored and transported, if the temperature and humidity are properly controlled, it is difficult to produce molds and other bacteria on the grains. There is no need for special management of the production of bacteria. Only foreign matter detection and determination of grains The quality can be.

However, environmental changes such as warming and various changes caused by changes in social conditions, such as the storage environment of grains and the import of grains such as imported rice, must be managed without adequate temperature and humidity control for grains. Therefore, it is necessary to determine whether molds and other bacteria are produced on the grain.

In view of the above-mentioned points, the object of the present invention is to provide an object sorting device that can reliably detect producing fungi.

The feature of the object sorting device of the present invention is The first light source section that emits visible light, the second light source section that emits infrared light, and the third light source section that emits ultraviolet light. Facing the moving object, at least one light is emitted among visible light, infrared light, and ultraviolet light as a light source.

The visible light emitted by the first light source unit and irradiated to the object is detected as the first detecting unit; the infrared light emitted by the second light source unit and irradiated to the object is detected as the second detecting unit; The ultraviolet light emitted by the aforementioned third light source unit and the fluorescent light emitted by the object are detected as the third detection unit. The first detection unit, the second detection unit, and the third detection unit are used as detection means.

Based on the detection result of the first detection unit, it is determined whether the transmittance or reflectance of the object is appropriate, which is the first adequacy determination unit; based on the detection result of the second detection unit, it is determined whether the object is If it is a foreign body, it is the second suitability judging unit; based on the detection result of the third detection unit, it is judged whether the object has bacteria, and it is the third suitability judging unit. The aforementioned first suitability determination unit, second suitability determination unit, and third suitability determination unit Based on the result of at least one of them, the quality of the moving object is determined as a means of determining the quality.

Changing the moving direction of the aforementioned object that is judged to be defective is a moving direction changing means.

The production of fungi can be reliably detected.

100: Conveying system (moving adjustment department)

120: bucket

130: Vibrating feeder

132: upper end

134: lower end

140: slide

142: upper end

144: lower end

146: Chute Ditch

200: Optics

210: Front side light source

212: Front RGB LED

214: Front side ultraviolet light emitting diode (deep ultraviolet light emitting diode)

216: Front infrared light emitting diode (near infrared light emitting diode)

220: Rear side light source

222: Rear RGB LED

224: Rear UV LED (Deep UV LED)

226: Rear infrared light emitting diode (near infrared light emitting diode)

230: Checkout Department

232: CIS for visible light domain (Front CIS)

234: CIS for near infrared light domain (rear CIS)

236: Front CMOSCAMERA

238: Rear CMOSCAMERA

300: Control Processing Department

310: Signal processing substrate

320: Image processing substrate

330: Air gun control board

340: Light source control device

400: Air gun drive system

410: Air Gun

412: Valve

414: Vent

Figure 1 shows a schematic side view of the entire object sorting device.

Figure 2 is a schematic diagram showing the configuration of the slideway 140, the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, the rear infrared light emitting diode 226, the exhaust hole 414, and the irradiation area IR. A front view (a) and a schematic front view (b) in which each chute groove 146 and each exhaust hole 414 of the chute 140 are arranged in the same vertical direction.

FIG. 3 shows a schematic side view of the transport system 100, the optical system 200, and the air gun drive system 400 of the object sorting device 10.

FIG. 4 shows a schematic side view of the optical system 200 of the object sorting device 10.

FIG. 5 shows a schematic side view of the light path in the optical system 200 of the object sorting device 10, the passing area PR, and the irradiation area IR.

FIG. 6 shows a functional block diagram of the outline of the function of the object sorting device 10.

FIG. 7 shows a flow chart of the signal processing board judgment processing executed in the signal processing board 310.

FIG. 8 shows a flowchart of the signal processing board determination processing performed in the signal processing board 310.

Fig. 9 shows a flowchart of the image processing substrate judgment processing executed in the image processing substrate 310.

Fig. 10 shows a flowchart of the image processing substrate judgment processing executed in the image processing substrate 310.

FIG. 11 shows a flowchart of the air valve opening and closing control processing executed in the air gun control board 330.

Fig. 12 shows a schematic view of the moving direction of the grain GR separated from the chute 140.

FIG. 13 shows a schematic view of the moving direction of the grain GR separated from the chute 140.

Fig. 14 shows a schematic view of the moving direction of the grain GR separated from the chute 140.

Figure 15 shows the timing (TIMING) flow chart of the relationship between the "rising part" and "falling part" of the NG signal pulse wave, as well as the "timing start timing (TIMING)", "standby time", and "valve opening time".

<<<<Summary of the implementation type>>>>

<<The first implementation mode>>

According to the first implementation mode, provide the object selection device equipped with the following means

The first light source part that emits visible light (such as the front RGB light-emitting diode 212 and the rear RGB light-emitting diode 222, etc. described later), and infrared light-emitting The second light source section (such as the front side infrared light emitting diode 216 and the rear side infrared light emitting diode 226 described later) and the third light source section that emits ultraviolet light (such as the front side ultraviolet light emitting diode 214 and the rear side ultraviolet light emitting diode described later) Light emitting diode 224 etc.). Facing a moving object (such as grains such as rice, etc. described later), at least one of visible light, infrared light, and ultraviolet light is emitted as a light source means (such as the optical system 200 described later).

The visible light emitted by the first light source unit and irradiated to the object is detected as the first detection unit (such as CIS232 for the visible light domain described later); the light emitted by the second light source unit and irradiated to the object is detected Infrared light is the second detection unit (such as the CIS234 for the near-infrared region described later); the ultraviolet light emitted by the third light source unit and irradiated to the object is detected as the third detection unit (such as the front side described later) CMOS CAMERA236 and rear CMOSCAMERA238, etc.). The first detection unit, the second detection unit, and the third detection unit serve as detection means (detection system 230, etc.).

Based on the detection result of the first detection unit, it is determined whether the transmittance or reflectance of the object is appropriate, which is the first suitability determination unit (such as the signal processing board 310 described later and the processing of FIG. 7); The detection result of the second detection unit determines whether the object is a foreign object and is the second suitability determination unit (such as the signal processing board 310 described later and the processing in Figure 8); based on the third detection unit As a result of the detection, it is determined whether the aforementioned target body has bacteria or not, and it is the third suitability determination unit (such as the processing of the image processing board 320 and the processing of FIGS. 9 and 10 described later). The judgment of the aforementioned first suitability judging unit, the second suitability judging unit, and the third suitability judging unit determines the quality of the moving object based on the judgment result of at least one of them, as The means for determining the quality (such as the signal processing board 310 and the image processing board 320 described later).

Changing the moving direction of the aforementioned object that is judged to be defective is a moving direction changing means (such as the air gun drive system 400 described later).

As mentioned above, the object sorting device is equipped with light source means, detection means, good or bad decision means, and moving direction changing means.

The light source means includes a first light source unit, a second light source unit, and a third light source unit. The first light source part emits visible light. The second light source section emits infrared light. The third light source part emits ultraviolet light.

The detection means has a first detection part, a second detection part and a third detection part. The first detection unit detects the visible light irradiated to the object. Specifically, the first detection unit detects visible light (transmitted component of visible light (visible transmitted light)) irradiated to and transmitted through the object and visible light reflected by the object (reflected component of visible light (visible reflected light) ). Either only the visible transmitted light, only the visible reflected light, or both the visible transmitted light and the visible reflected light can be detected. As long as it can respond to the type of the object and the types of defects that occur on the object, and determine whether it is good or not.

The second detection unit detects infrared light irradiated to the object. Specifically, the second detection unit detects infrared light (transmission component of infrared light (infrared transmitted light)) that is irradiated and transmitted through the object and infrared light reflected by the object (reflection component of infrared light ( Infrared reflected light)). Either only infrared transmitted light, infrared reflected light only, or both infrared transmitted light and infrared reflected light can be detected. As long as it can respond to the type of the object and the types of defects that occur on the object, and determine whether it is good or not. Although infrared light includes near-infrared light, mid-infrared light, far-infrared light, etc., it is sufficient as long as it is an infrared light that can reliably judge whether the object is good or not.

The third detection unit detects the fluorescent light emitted from the subject. Specifically, the ultraviolet light emitted by the third light source is irradiated to the object, and if bacteria are produced on the object, it responds to the irradiated ultraviolet light and emits fluorescence from the bacteria. The third detection part is to detect the fluorescence emitted by the bacteria. Although there are deep ultraviolet light, A wave (UVA), B wave (UVB), C wave (UVC), etc. in the ultraviolet light, as long as it is ultraviolet light that can reliably determine the production of bacteria.

There are a first suitability determination unit, a second suitability determination unit, and a third suitability determination unit as the means for determining good or bad. Based on the detection result of the first detection device, the first adequacy determination unit determines whether the penetration filter and reflectance of the object are appropriate. Specifically, the first suitability determination unit determines whether the transmittance of the object obtained from the transmission component of visible light (visible see-through light) and the reflectance of the object obtained from the reflected component of visible light (visible reflected light) are appropriate.

The second suitability determination unit determines whether the target body is a foreign object based on the detection result of the second detection device. Specifically, the second suitability determination unit determines whether the object transmittance obtained from the infrared light transmission component (infrared transmitted light) and the object reflectance obtained from the infrared light reflection component (infrared reflected light) are appropriate.

The third suitability judging unit judges whether the target body has the generation of bacteria based on the detection result of the third detection device. In addition, the quality determination means determines whether the moving object is a defective product based on at least one of the determination results of the first suitability determination unit, the second suitability determination unit, and the third suitability determination unit. In particular, use at least the judgment result of the third suitability judgment unit As a result, it can be determined whether or not bacteria such as mold are produced on the object.

In addition, in response to the type of the object and the type of defectiveness generated on the object, the first suitability determination unit, the second suitability determination unit, and the third suitability determination unit can determine whether the product is defective or not. Any two judgment results may determine whether it is a defective product, or any one judgment result may determine whether it is a defective product.

The moving direction changing means changes the moving direction of the aforementioned object that is judged to be defective.

The object sorting device in the first embodiment can not only determine discoloration and foreign matter, but also determine whether or not bacteria such as mold are produced on the object.

The object selection device in the first embodiment can be divided into three types: the first detection unit and the first suitability determination unit, the second detection unit and the second suitability determination unit, the third detection unit, and the third suitability determination unit The detection unit and the adequacy determination unit determine the quality of the object. That is, the judgments of the first detection unit and the first suitability judgment unit, the judgments of the second detection unit and the second suitability judgment unit, and the judgments of the third detection unit and the third suitability judgment unit are concentrated in one The object selection device is used for integrated and general processing. As a result, it is possible to prevent or reduce damage, contamination, and impact to the object due to the movement of the object.

On the other hand, for example, if an object selection device with only the first detection unit and the first suitability determination unit is used; the object selection device with only the second detection unit and the second suitability determination unit; and only the third inspection unit is used. The object selection device of the third suitability judging unit and the third suitability judging unit. The functions of the three devices are different, so it is necessary to move the object. Every movement may cause damage, pollution and impact to the object. However, if the object sorting device in the first embodiment is used, the quality of the object can be judged with only one movement, so it is less likely to cause damage to the object, and it is easy to maintain the state of the object.

In addition, in the first embodiment, it is more satisfactory to include a movement adjustment unit (such as the transport system 100 described later) that can adjust the movement speed, movement direction, and movement posture of the object. At the time of detection, the object can be detected in an appropriate state, and a stable judgment can be made to select the object.

The aforementioned first detection unit, first suitability determination unit, second detection unit, second suitability determination unit, third detection unit, and third suitability determination unit will mutually detect different optical characteristics, corresponding to optical characteristics, To determine the suitability of the subject. In addition, although the optical characteristics include reflection, transmission, absorption, etc., they are not limited to this, as long as the characteristics obtained by illuminating the object with various lights can determine the suitability of the object.

In addition, in the aforementioned configuration, although an example having the first detection unit and the first suitability determination unit, the second detection unit and the second suitability determination unit, the third detection unit and the third suitability determination unit is shown, Depending on the type of object and the type of defects that occur on the object, the following configurations can be made. It has only the first detection unit, the first suitability determination unit, the second detection unit, and the second suitability determination unit; only the second detection unit, the second suitability determination unit, the third detection unit, and the third The composition of the suitability judging unit; and those with only the first detection unit, the first suitability judging unit, the third detection unit, and the third suitability judging unit constitute. A device for sorting objects that is specialized in response to the types of objects and defects in the objects can be provided here.

<<The second implementation mode>>

The second implementation aspect is constituted by the following means in the first implementation aspect.

At least one light source is selected among the first light source section mentioned above, the second light source section mentioned above, and the third light source section mentioned above, and the lighting, extinction and luminous intensity of the selected light source section is controlled as a light emission control means (For example, the light source control device 340 described later).

You can select the first light source part, the second light source part, and the third light source part, and control the lighting, extinction, and luminous intensity. According to the type and property of the object, and the type of defect, the object can be illuminated with appropriate light , You can definitely judge whether it is bad.

<<The third implementation mode>>

The third implementation mode is in the second implementation mode, The aforementioned first light source unit is a white light source composed of a plurality of color light sources capable of controlling light emission independently, The aforementioned light-emitting control means can mutually and independently control the light-on, light-off, and luminous intensity of the multiple color light sources.

Regarding visible light, since lighting, extinguishing, and luminous intensity can be more controlled, it is possible to illuminate the object with appropriate light according to the type and property of the object, and the type of defect, and it is possible to determine whether it is defective or not.

<<The fourth implementation mode>>

The fourth implementation style is in the third implementation style, The aforementioned plural colors are composed of red, blue, and green. You can freely emit light of the desired color to illuminate the object.

<<The fifth implementation mode>>

The fifth implementation style is in the third implementation style, The third detection unit detects the visible light emitted by the first light source unit and irradiated to the object, and the quality determination means determines the quality of the object based on the result of the visible light detection by the third detection unit Whether the transmittance or reflectance is appropriate is the fourth adequacy judging section (such as the processing of the image processing substrate 320 described later and the processing of Figs. 9 and 10)

When the aforementioned first suitability determination unit determines whether the transmittance of the object obtained from the visible light transmission component (visible transmitted light) of the first detection device is appropriate, the fourth suitability determination unit determines the visible light from the third detection device It is satisfactory whether the reflectivity of the object obtained by the reflected component (visible reflected light) is appropriate. On the other hand, when the aforementioned first suitability determination unit determines whether the reflectance of the object obtained from the visible light reflected component (visible reflected light) of the first detection device is appropriate, the fourth suitability determination unit determines from the first 3 It is also acceptable to detect whether the transmittance of the object obtained by the visible light transmission component (visible transmitted light) of the device is appropriate. In this way, based on the judgment of the first adequacy judging unit and the fourth judging unit, whether it is transmittance or reflectance for visible light, it is not only one of them, because it is judged by both transmittance and reflectance, so it can be more Determining the type of defect reliably.

In the fifth embodiment, in the aforementioned first detection unit, first suitability determination unit, second detection unit, second suitability determination unit, and In the 3 detection unit and the third suitability determination unit, a third detection unit and a fourth suitability determination unit are added to determine the suitability of the object. In this way, the third detection unit not only detects fluorescence and visible light, but the fourth suitability determination unit determines whether the reflectance or transmittance of the object is appropriate based on the detection result when using visible light. The first detection unit and the first suitability determination unit, the second detection unit and the second suitability determination unit, the third detection unit and the third suitability determination unit, the third detection unit and the fourth suitability determination unit will mutually check each other According to the different optical characteristics, the corresponding optical characteristics can be used to determine the suitability of the object. As described above, the optical characteristics include reflection, transmission, absorption, etc., but they are not limited to this, as long as the characteristics can be obtained by illuminating the object with various lights to determine the suitability of the object.

In addition, in the foregoing configuration, although it is shown that the first detection unit and the first suitability determination unit, the second detection unit and the second suitability determination unit, the third detection unit and the third suitability determination unit, and the third The detection unit and the fourth suitability determination unit are examples of four types of detection units and suitability determination units. However, according to the type of object and the type of defect generated on the object, the combination can be appropriately changed and used as a determination. Specifically, the following configuration is possible. It has only the first detection unit, the first suitability determination unit, the second detection unit, and the second suitability determination unit; only the first detection unit, the first suitability determination unit, the third detection unit, and the third The composition of the suitability determination unit; only the first detection unit, the first suitability determination unit, the third detection unit, and the fourth suitability determination unit; only the second detection unit, the second suitability determination unit, and the third The composition of the detection unit and the third suitability determination unit; only the second detection unit, the second suitability determination unit, the third detection unit, and the fourth suitability determination unit; only the third detection unit and the third The composition of the suitability determination unit, the third detection unit and the fourth suitability determination unit; It only has the first detection unit and the first suitability determination unit, the second detection unit, the second suitability determination unit, the third detection unit, and the third suitability determination unit; only the first detection unit and the first The composition of the suitability determination unit, the second detection unit, the second suitability determination unit, the third detection unit, and the fourth suitability determination unit; only the second detection unit, the second suitability determination unit, the third detection unit and The composition of the third suitability determination unit, the third detection unit, and the fourth suitability determination unit. A device for sorting objects that is specialized in response to the types of objects and defects in the objects can be provided here.

<<The sixth implementation mode>>

The sixth implementation style is in the fifth implementation style, The aforementioned moving direction changing means is composed of a fluid discharge device and a discharge timing (TIMING) determination unit.

Facing the moving object, a fluid discharge device that discharges fluid (such as the air gun 410 described later), and In response to at least one of the results of the aforementioned first suitability judging unit, aforementioned second suitability judging unit, aforementioned third suitability judging unit, and aforementioned fourth suitability judging unit, determine the timing of discharging fluid from the aforementioned fluid discharge device ( TIMING) is a discharge timing (TIMING) determining unit (such as the air gun control board 330 described later).

Because the timing of fluid discharge (TIMING) can be determined according to the type of defect, it can surely prevent defective objects from not being discharged, or good ones from being rejected, and achieve the selection of only defective objects.

In the timing of fluid discharge (TIMING), for example, in addition to opening In addition to the timing of the initial fluid discharge (TIMING) and the timing of the final fluid discharge (TIMING), there is also a timing (TIMING). In addition, it is also possible to control the timing of changing the discharge fluid flow rate (TIMING). It is possible to switch the timing of the discharge fluid flow from a large amount to a small amount (TIMING), and to switch from a small amount to a large amount (TIMING). In addition, the timing of changing the discharge intensity (TIMING) is also good. It would be great if the moving direction of the object can be changed reliably in accordance with the discharge. These timings (TIMING) can be determined in accordance with the judgment results of the first suitability determination unit to the fourth suitability determination unit. Specifically, it is possible to change the timing (TIMING) according to the quality of the object corresponding to the judgment result. For example, if the object is lighter, the moving speed will be slower. In this case, you can delay the timing (TIMING); when the object is heavier, the moving speed becomes faster, then speed up the timing (TIMING), and control the timing like this ( TIMING).

The fluid is, for example, air, but it is not limited to air as long as the moving direction of the object can be changed, and other fluids, such as liquids such as water, may be used.

<<<<<Details of this embodiment>>>>>

The following description of the implementation type is based on the drawings. The grains referred to below refer to the seeds of gramineous crops, legumes and other crops, and focus on the shape of grains.

<<<<Configuration of Object Sorting Device 10>>>>

The object sorting device 10 is mainly composed of a transport system 100 (movement adjustment unit), an optical system 200, a control processing system 300, and an air gun drive system 400. The conveying system 100 is for moving the object when selecting the object for selecting grains such as rice. The optical system 200 is used to select good or bad grains Whether it is good or not, the light is irradiated on the grain, and the transmitted light, reflected light, and fluorescent light generated by the irradiated light are detected. The control processing system 300 detects various kinds of light generated by the irradiation light to determine the quality of the grain. The air gun driving system 400 drives the air gun in response to the determination result of the control processing system 300 in order to remove grains that are determined as defective. The conveying system 100 (movement adjusting part), the optical system 200, the control processing system 300, and the air gun drive system 400 will be described in detail below.

<<<The structure of the transport system 100 (moving adjustment part)>>>

Fig. 1 is a schematic side view of the entire display object sorting device 10. Fig. 2 is a front view showing the entire outline of the object sorting device 10. FIG. 3 is a schematic side view showing the outline of the transport system 100 and the optical system 200 of the object sorting device 10. FIG. 4 is a schematic side view showing the outline of the optical system 200 of the object sorting device 10. FIG. 5 is a schematic side view showing the outline of the optical path in the optical system 200 of the object sorting device 10. FIG. 6 is a functional block diagram showing the outline of the functions of the object sorting device 10.

In addition, in Figure 2(a), in order to clearly show the slide 140, the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, the rear infrared light emitting diode 226, the exhaust hole 414 and the irradiation The positional relationship between the domain IRs is therefore displayed in separate positions. The specific configurations of these are shown in Figures 3, 4, and 5. The chute 140 has a long-length shape, but in Fig. 2(a), the chute 140 is shown with the middle section omitted. In Figure 2 (b), in order to clearly show the correspondence between the slide 140 and the exhaust hole 414, a part of the slide 140 and the exhaust hole 414 is enlarged. Show in minutes. In addition, in Figure 5, in order to clearly show the optical path, the front CMOS CAMERA 236 and the rear CMOS CAMERA 238 are placed close to the irradiation area IR.

As shown in FIGS. 1 and 3, the conveying system 100 mainly includes a bucket 120, a vibrating feeder 130, and a slide 140.

<Barrel Slot 120>

The bucket 120 is a container for storing grains such as rice to be sorted. The barrel 120 is arranged on the upper part of the object sorting device 10. A through hole is formed at the bottom of the barrel 120 (not shown in the figure). The grain stored in the bucket 120 moves under the bucket 120 due to gravity, passes through the through hole at the bottom, and falls from the bucket 120 into the vibrating feeder 130.

<Vibrating Feeder 130>

The vibrating feeder 130 has an upper end 132 and a lower end 134. The through hole of the barrel 120 is close to the upper end 132 and is located above the vibrating feeder. The grain falling from the through hole of the tub 120 is guided to the vicinity of the upper end 132 of the vibrating feeder 130. The vibrating feeder 130 faces the slideway 140 and tilts downward, and can generate vibration via an electric motor (not shown in the figure). Due to the vibration of the vibrating feeder, the grains falling near the upper end 132 of the vibrating feeder 130 slowly move toward the lower end 134 of the vibrating feeder 130 and are guided from the lower end 134 to the chute 140.

<Slipway 140>

The chute 140 has an upper end 142 and a lower end 144, and the grain moving on the vibrating feeder 130 due to the vibration of the vibrating feeder 130 drops near the upper end 142 of the chute 140.

The chute 140 is composed of several, long and parallel to each other. For example, 60 chute grooves 146 are juxtaposed (refer to FIG. 2). The cross-sectional shape of the chute groove 146 in the short-hand direction (the horizontal direction in FIG. 2) is slightly U-shaped, and has a shape suitable for the appearance of the grain. Each chute groove 146 has a width slightly larger than that of grains such as rice. In addition, when the grain has a long-length shape such as a slightly long ball (oblong), the width of the grain means the length of the grain in the short-hand direction. When the grain has a spherical shape, the width of the grain means the length of the diameter of the grain. The chute groove 146 is processed into a smooth surface, and the grain guided to the chute groove 146 can move smoothly while sliding in the chute 146.

The plural grains falling near the upper end 142 of the chute 140 are gradually separated and changed postures, and are guided into the chute groove 146 individually. The grains introduced into the chute groove 146 are guided by the chute groove 146 having a U-shaped cross section, and move along the chute groove 146. The chute groove 146 serves as a guide path for the grain, and the grain guided to each chute groove 146 can smoothly move along the long hand direction of the chute groove 146. The angle of the chute 140 relative to the horizontal direction (angles greater than 0 degrees and less than 90 degrees), for example, is set to about 70 degrees, and the grains that are introduced into the chute groove 146, due to the action of gravity, are removed from the slide The trench 146 is guided toward the lower end 144 of the slide 140 to move downward.

The grains that have moved downward along the chute groove 146 reach the lower end 144 of the chute 140, and then detach from the chute 140 to freely fall (hereinafter referred to as falling). In addition, as shown in FIG. 4 and FIG. 5, the grains separated from the chute 140 fall along the passing area PR.

According to the type, size and falling speed of the grain, the front The aforementioned angle relative to the horizontal direction of the slide 140 can be appropriately determined. By adjusting the horizontal angle relative to the slide rail 140, the desired speed when falling from the lower end 144 of the slide rail 140 can be obtained. Because the speed when the grain falls is suitable for detection, the accuracy of good or bad detection can be improved.

<Operation Panel 160>

As shown in Figs. 1 and 3, an operation panel 160 is provided in front of the object sorting device. The operation panel 160 has a liquid crystal screen and a touch panel. On the liquid crystal screen, various messages for manipulating the object sorting device 10 are displayed. The operator confirms the displayed message and operates the touch panel to activate the target body sorting device 10.

In addition, the LCD screen of the operation panel 160 can instantly display the light reception results (photographic results) of the CIS232 for the visible light domain, the CIS234 for the near-infrared light domain, the front CMOS CAMERA236, and the rear CMOS CAMERA238 described later. The operator can judge whether the light reception (photography) is performed properly.

<<<Optics 200>>>

<<Types of light, detection objects and judgment content>>

As described above, in the embodiment of the present embodiment, three types of light of visible light, near-infrared light, and deep ultraviolet light are used to determine whether the grain is good or bad. For example, the transmittance of visible light through grains is used to determine whether grains such as rice have become cloudy or thin. The reflectance of visible light reflected by grains is used to determine whether grains such as rice have turned into a dark state such as black. Use near-infrared light to detect the presence or absence of moisture to determine whether it is a foreign object such as plastic. Using deep ultraviolet light to detect the generation of fluorescence, Determine the production of molds and other bacteria.

<<Configuration of Optical System 200>>

As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 12, Fig. 13 and Fig. 14, the optical system 200 is arranged as if the grains falling off the slide 140 are sandwiched. In addition, as shown in FIG. 6, the optical system 200 is composed of a front-side light source system 210, a rear-side light source system 220, and a detection system 230. In addition, the so-called front side in the object sorting device 10 refers to the same side as the operation panel 160 (refer to Figs. 1 and 3) operated by the operator; the so-called back side, that is, the opposite side of the front side, is toward Choose which side of the device to go to. The so-called front-side light source system 210 and the rear-side light source system 220 sandwich the fallen grain and are arranged on the front side and the rear side.

<<Front side light source 210 and rear side light source 220>>

The front-side light source 210 is composed of a front-side RGB light-emitting diode 212, a front-side ultraviolet light-emitting diode 214, and a front-side infrared light-emitting diode 216. The rear light source system 220 is composed of a rear RGB light emitting diode 222, a rear ultraviolet light emitting diode 224, and a rear infrared light emitting diode 226. The light emitting diodes constituting the front side light source system 210 and the rear side light source system 220 all emit light toward the irradiation area IR (refer to FIGS. 4 and 5) in the passing area PR. When the grain reaches the position of the irradiation area IR, it will be The light emitting diodes constituting the front light source system 210 and the rear light source system 220 are illuminated. In addition, the passing area PR is the area through which the grains detached from the chute 140 falls and passes (refer to FIGS. 4 and 5), and the irradiation area IR is a part of the area included in the passing area PR (refer to FIGS. 4 and 5). Figure 5), which are emitted from the light-emitting diodes of the front-side light source system 210 and the rear-side light source system 220. Irradiation area (refer to Figure 2, Figure 4 and Figure 5).

<Front RGB light emitting diode 212 and rear RGB light emitting diode 222>

The front RGB light emitting diode 212 and the rear RGB light emitting diode 222 are composed of three types of light emitting diodes: red light emitting diodes, green light emitting diodes, and blue light emitting diodes. Specifically, as shown in Figure 2, a plurality of, for example, 75 red light emitting diodes are arranged in stripes (called a red light emitting diode array); a plurality of, for example, 75 green light emitting diodes are arranged In stripes (called green light-emitting diode rows); plural, for example, 75 blue light-emitting diodes are arranged in stripes (called blue light-emitting diode rows), and red light-emitting diodes The rows and the green light-emitting diode rows and the blue light-emitting diode rows are arranged in parallel to each other (refer to Figure 2).

In addition, Figure 2(a) shows a patterned display of the slide 140, the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, the rear infrared light emitting diode 226, the exhaust hole 414, and the illuminated area. A schematic front view of the positional relationship of IR. In addition, FIG. 2(b) is a schematic front view showing that each chute groove 146 and each vent hole 414 of the chute 140 are arranged in the same vertical direction.

The light source control device 340 described later can control the lighting state and the light-off state of the front RGB light emitting diode 212 and the rear RGB light emitting diode 222. That is, actuate the red light-emitting diode that constitutes the red light-emitting diode row, which can emit red light; actuate the green light-emitting diode that constitutes the green light-emitting diode row, which can emit green light; actuate the blue light-emitting diode. The blue light-emitting diodes in the pole column can emit blue light. Moreover, when the red light-emitting diode array, the green light-emitting diode array, and the blue light-emitting diode array are all actuated at the same luminous intensity, white light can be emitted.

Moreover, the light source control device 340 can individually control the luminous intensity of the red light-emitting diode array, the green light-emitting diode array, and the blue light-emitting diode array. As a result, in addition to being able to actuate the red light-emitting diode row to emit no light at all (zero luminous intensity), the green light-emitting diode row to emit no light at all (zero luminous intensity), and the blue light-emitting diode row to emit no light at all (zero luminous intensity). Luminous intensity) and adjust the luminous intensity of the red light-emitting diode row and the luminous intensity of the green light-emitting diode row and the luminous intensity of the blue light-emitting diode row to obtain the desired combination of luminous intensity, which can be used to illuminate the falling cereals. The combination of red, green, and blue luminous intensity is determined to illuminate the grain according to the type of grain and the type of defects (foreign matter mixing, deterioration, bacteria production, etc.) generated on the grain, so that the quality of the grain can be judged more reliably.

<Front infrared light emitting diode 216 and rear infrared light emitting diode 226>

The front infrared light emitting diode 216 and the rear infrared light emitting diode 226 are diodes that emit infrared light. Infrared light is mainly composed of three kinds of near-infrared light, mid-infrared light and far-infrared light. In the form of this implementation, the use of near-infrared light is preferred. Near infrared light is an electromagnetic wave of 780 to 3,000 nm. Therefore, using near-infrared light, it is possible to reliably detect foreign matter such as plastic mixed in the grain. In addition, if the foreign matter mixed in the grain can be found, it is not limited to near infrared light, and infrared light can be widely used.

<Front UV LED 214 and Rear UV LED Light diode 224>

The front side ultraviolet light emitting diode 214 and the rear side ultraviolet light emitting diode 224 are diodes that emit ultraviolet light. For example, a light-emitting diode that emits ultraviolet light with a wavelength below 400 nm. Especially in this embodiment, deep ultraviolet light is preferred. The wavelength range of deep ultraviolet light refers to ultraviolet light below approximately 250 nm, 300 nm, and 350 nm. When molds and other bacteria are produced on the surface of grains, ultraviolet light in the deep ultraviolet wavelength range is irradiated on the grains, and fluorescence is emitted from the bacteria. When fluorescence is detected, it can be determined that molds and other bacteria are produced on the grains. In addition, if the bacteria produced on grains can be detected, it is not limited to deep ultraviolet light, and ultraviolet light can be widely used.

Although it is sometimes possible to confirm with the naked eye after the mold has grown, it is difficult to confirm with the naked eye before the mold has fully grown. When the grain is contaminated by mold, it is very difficult to remove the mold from the grain, so it is necessary to remove the grain contaminated by the mold. Generally speaking, most of the bacteria produced on grains have fluorescent substances. When deep ultraviolet light is irradiated to the bacteria, fluorescence will be emitted from the bacteria, which can be identified. For example, in a state where molds and other bacteria are formed on the surface of grains, the luminescence of fluorescent light can be identified by irradiating deep ultraviolet light of 310 nm or a wavelength range of 400 nm to 520 nm.

<<Detected Department 230>>

The detection system 230 is composed of CIS232 for visible light domain and CIS234 for near infrared light domain, front CMOSCAMERA236 and rear CMOSCAMERA238.

<CIS232 for visible light domain and near infrared light domain CIS234>

CIS232 for visible light domain and CIS234 for near-infrared light domain are composed of a contact image sensor (Contact Image Sensor). In addition, in this embodiment, the CIS232 for the visible light region and the CIS234 for the near-infrared light region use contact image sensors with the same characteristics (sensitivity and frequency characteristics, etc.) for light, and are used in the visible light region. In front of the CIS232, an infrared cut filter (not shown) is arranged as a contact image sensor for the visible light domain; in front of the CIS234 for the near infrared light domain, a visible light cut filter (not shown) is arranged , As a contact image sensor for the near-infrared light domain. In addition, the infrared cut filter and the visible light cut filter may not be used, and a contact image sensor with characteristics corresponding to the visible light domain and a contact image sensor with characteristics corresponding to the near-infrared light domain may be selected separately.

In this embodiment, the CIS232 for visible light domain is arranged on the front side of the object sorting device 10, and the CIS234 for near-red outer light domain is arranged on the rear side of the target body sorting device 10. In addition, the sensor for the visible light region and the sensor for the near-infrared light region are not limited to such an arrangement, as long as they can be appropriately arranged according to the type of grain and the type of grain defect.

<CIS232 for visible light domain>

The CIS232 for the visible light domain is a sensor used to detect visible light transmitted through grains. The visible light domain CIS232 can detect the visible light emitted by the front RGB light-emitting diode 212 and the rear RGB light-emitting diode 222 through the grain.

The visible light emitted by the front RGB light-emitting diode 212 The light, after passing through the grain, is irradiated to the background body 242, and then reflected by the background body 242 toward the CIS232 for the visible light domain. The visible light CIS232 receives light from the visible light reflected from the background body 242. The visible light reflected by the background body 242 also includes light transmitted through the grain, so the transmittance of the grain can be obtained.

In addition, the visible light emitted from the rear side RGB light emitting diode 222 passes through the grain and then faces the CIS232 for the visible light region. The CIS232 for the visible light domain receives light that passes through the grain and directly faces the visible light of the CIS232 for the visible light domain.

It can be seen that the visible light domain CIS232 is received by the front RGB light emitting diode 212, reflected by the background body 242, toward the light path VF of the visible light domain CIS232, and emitted by the rear RGB light emitting diode 222, passing through the grain , The optical path VR of the CIS232 facing the visible light domain is arranged to receive the visible light of the two optical paths.

<Background 242 for CIS232 for visible light domain>

The background body 242 is an object serving as a reference for the visible illuminance. It is arranged at a position illuminated by visible light emitted by the front RGB light emitting diode 212. The background body 242 is composed of, for example, a white flat body.

<Shield plate 252 for CIS232 for visible light domain>

In addition, a shielding plate 252 is provided in front of the CIS232 for visible light domain. The visible light emitted by the front RGB light emitting diode 212 is reflected by the grain and may be incident on the CIS232 for the visible light region. The shielding plate 252 is a material used to prevent the reflected light from entering. It is a material used to block a part of the visible light domain that can be received by the CIS232.

<Detected by CIS232 in the visible light domain>

The CIS232 for the visible light domain detects that when the grain falling from the slide 140 passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, it is emitted by the front RGB light-emitting diode 212 and the rear RGB light-emitting diode 222 and passes through The visible light of the grain. Moreover, when the grain does not appear in the irradiation area IR, the visible light CIS232 directly receives the visible light emitted by the front RGB light emitting diode 212 and the rear RGB light emitting diode 222.

Therefore, when the grain appears in the irradiation area IR, and when the grain does not appear in the irradiation area IR, the received light intensity of the CIS232 for the visible light range is different. For example, when grains such as near-transparent good-quality rice pass through the irradiation area IR, the transmittance does not change, and the received light intensity does not change. On the other hand, when grains such as turbid bad rice pass through, the transmittance changes greatly, so the received light intensity also changes greatly.

From this, it can be seen that by receiving visible light through the CIS232 for visible light range, it can be determined, for example, whether the grain is in a thin-colored state such as white turbidity. In addition, when the visible light passing through the grain in the thin-colored state is received, the image of the grain in the thin-colored state is generated as a black image. That is, it can be judged whether it is a thin-colored grain by whether there is a black image.

<CIS234 for near infrared light domain>

The CIS234 for near-infrared light is a sensor used to detect near-infrared light passing through grains. The near-infrared light domain uses CIS234 to detect the near-infrared light emitted by the front infrared light-emitting diode 216 and the rear infrared light-emitting diode 226, passing through the grain.

Near infrared emitted by the front infrared light emitting diode 216 After the light passes through the grain, the CIS234 is used for the near infrared light domain. The CIS234 for near-infrared light is transmitted through grains and directly receives light from the near-infrared light toward the CIS234 for near-infrared light.

In addition, the near-infrared light emitted by the rear infrared light-emitting diode 226 first passes through the grain and then irradiates the background body 244, and then is reflected by the background body 244 toward the CIS234 for near-infrared light. In the near-infrared light domain, the near-infrared light reflected from the background body 244 is received by the CIS234. The near-infrared light reflected by the background body 244 includes the light transmitted through the grain, and thereby the transmittance of the grain can be obtained.

It can be seen that the CIS234 for near-red outer light is emitted by the front infrared light-emitting diode 216, passes through the grain, and faces the optical path RF of the CIS234 for near-infrared light, and emits from the rear infrared light-emitting diode 226. Background The body 244 reflects and faces the optical path RR of the CIS234 for near-infrared light. It is arranged to receive near-infrared light from these two optical paths.

<Background 244 for CIS234 for near infrared light domain>

The background body 244 is an object serving as a reference for the near-red external illuminance, and is arranged at a position illuminated by the near-infrared light emitted by the rear infrared light-emitting diode 226. The background body 244 is, for example, a white flat body.

<CIS234 shielding plate 254 for near infrared light domain>

In addition, a shielding plate is installed in front of the CIS234 for near infrared light. The near-infrared light emitted from the rear infrared light-emitting diode 226 may also be reflected by the grain and enter the CIS234 for the near-infrared light range. The shielding plate 254 is a material used to prevent the reflected light from entering, and to shield a part of the CIS234 for near-infrared light that can receive light.

<Detected by CIS234 near the red outer optical domain>

The near-infrared light domain is detected by the CIS234. When the grain falls from the slide 140 and passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, the infrared light-emitting diode 216 from the front and the infrared light-emitting diode from the rear 226 emits, and transmits the near-infrared light of the grain. In addition, when the grain is not in the irradiated area IR, the CIS234 for the near-infrared light domain directly receives the near-infrared light emitted from the front infrared light emitting diode 216 and the rear infrared light emitting diode 226.

Therefore, the received light intensity of the CIS234 for the near-infrared light region is different when the grain is in the irradiation area IR and when the grain is not in the irradiation area IR. For example, when grains such as good-quality rice that are rich in moisture pass through the irradiation area IR, the transmittance does not change, and the received light intensity does not change. On the other hand, when foreign objects such as plastics pass through the irradiation area IR, the transmittance greatly changes and the received light intensity also changes greatly.

It can be seen from this that the CIS234 is used to receive near-infrared light in the near-infrared light domain, for example, it can be determined whether there is foreign matter such as plastic mixed in. In addition, the CIS234 for the near-infrared light domain responds to the type of the foreign object when receiving the near-infrared light passing through the foreign object, and generates a foreign object image of black and white images. That is, it can be judged whether it is a foreign object based on the presence or absence of a black image or a white image. In addition, the type of foreign matter can be judged by the black image or white image.

<<Front CMOSCAMERA236 and rear CMOSCAMERA238>>

Both the front CMOSCAMERA236 and the rear CMOSCAMERA238 are composed of CMOSCAMERA.

<Front CMOSCAMERA236>

The visible light emitted by the front RGB light emitting diode 212 is reflected by the grain when it is irradiated on the fallen grain. The front CMOSCAMERA236 receives the visible light reflected by the grain. In addition, when the deep ultraviolet light emitted from the front side ultraviolet light-emitting diode 214 is irradiated to the fallen grain, if there is a situation that molds or other fungi are produced on the grain, the mold on the grain will emit fluorescence. The front side CMOSCAMERA236 receives light from the fluorescence emitted by this mold.

<Back side CMOSCAMERA238>

The visible light emitted from the rear RGB light emitting diode 222 is reflected by the grain when it is irradiated on the fallen grain. The rear CMOSCAMERA238 receives the visible light reflected by this grain. In addition, when the deep ultraviolet light emitted from the rear side ultraviolet light emitting diode 224 is irradiated to the fallen grain, if there is a situation that molds or other bacteria are produced on the grain, the mold on the grain will emit fluorescence. The rear CMOSCAMERA238 receives light from the fluorescence emitted by this mold.

<Detected by CMOSCAMERA236 on the front and CMOSCAMERA238 on the back>

As mentioned above, the front side CMOSCAMERA236 and the back side CMOSCAMERA238 receive light from two kinds of light, that is, the visible light reflected by the grain and the fluorescent light emitted by the mold.

When the grain falling from the chute 140 passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, the visible light emitted by the front RGB light emitting diode 212 is reflected by the grain. The front CMOSCAMERA236 detects visible light reflected by the grain. In addition, when the grain is not in the irradiation area IR, the front CMOS CAMERA 236 will not receive the visible light emitted from the front RGB light emitting diode 212.

Similarly, when the grain falling from the chute 140 passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, the visible light emitted by the rear RGB light emitting diode 222 will be reflected by the grain. The CMOSCAMERA238 on the rear side detects visible light reflected by the grain. In addition, when the grain is not in the irradiation area IR, the rear CMOS CAMERA 238 will not receive the visible light emitted from the rear RGB light emitting diode 222.

From the fact that the front CMOS CAMERA 236 and the rear CMOS CAMERA 238 receive visible light reflected from the grain, for example, it can be determined whether the grains such as rice are in a dark state such as black. When the front CMOSCAMERA236 and the rear CMOSCAMERA238 detect grains in the dark state, they will generate dark images of grains in the dark state. In other words, it can be judged whether it is a grain in a dark color state by the presence of a black image.

In addition, when the grain falling from the chute 140 passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, the deep ultraviolet light emitted by the front side ultraviolet light emitting diode 214 is irradiated on the grain. If there is mold on the grain When produced, it will fluoresce from the mold. The front side CMOSCAMERA236 receives light from the fluorescent light emitted by the mold. In addition, when the grain is not in the irradiated area IR, the front CMOSCAMERA236 will not receive self-fluorescence.

Similarly, when the grain falling from the chute 140 passes through the irradiation area IR, that is, when the grain appears in the irradiation area IR, the deep ultraviolet light emitted by the rear ultraviolet light-emitting diode 224 is irradiated on the grain. When mold is produced, it will fluoresce from the mold. Back side CMOSCAMERA238 receives light from, the fluorescence emitted by the mold. In addition, when the grain is not in the irradiated area IR, the rear side CMOSCAMERA238 will not receive self-fluorescence.

Judging from the fact that the front CMOSCAMERA236 and the rear CMOSCAMERA238 are exposed to self-fluorescence, it can be determined whether there are molds and other bacteria on the grain. When the front side CMOSCAMERA236 and the back side CMOSCAMERA238 receive self-fluorescence, they will generate a white image of fungus and other bacteria. In other words, it can be judged whether it is a grain that produces fungi and other bacteria by checking whether the white image exists.

<<<Configuration of Chute Groove 146 and Optical System 200>>>

<irradiation area IR>

As mentioned above, the slideway 140 is formed by 60 slideway grooves 146. The grains falling from the lower end 144 of the chute 140 will definitely pass through the passing area PR and the irradiation area IR located at the lower end 144 of the chute 140 (As mentioned above, the irradiation area IR is included in a part of the passing area PR field). As shown in Fig. 2(a), specifically, the grain falling from the chute groove 146 of the central area SH-M of the chute 140 passes through the central area IR-M of the irradiation area IR; from the left side of the chute 140 The grain falling from the chute groove 146 of the area SH-L passes through the left area IR-L of the irradiation area IR; the grain falling from the chute groove 146 of the SH-R at the right end of the chute 140 passes through the right side of the irradiation area IR Field IR-R. In this way, because grains can fall on all 60 chute grooves 146, the irradiation area IR becomes a long-sized area extending in the horizontal direction (see Fig. 2(a)).

Front side light source 210 (front RGB light emitting diode 212, front UV light emitting diode 214, front red external light emitting diode 216) and rear light source 220 (rear RGB light emitting diode 222, rear ultraviolet light emitting Diode 224, rear side red light-emitting diode 226), visible light, deep ultraviolet light, and near-infrared light emitted from both sides, with almost uniform illuminance, illuminate the entire area of IR ( If passed generally). The front light source system 210 and the rear light source system 220 are constructed and arranged in this way. That is, not only the central area IR-M of the irradiation area IR, whether it is the left area IR-L or the right area IR-R, for each area, the light emitted by the front side light source system 210 and the rear side light source system 220 are both It is necessary to constitute a lighting method with almost uniform illuminance.

As shown in Figure 2, the horizontal length of the rear light source 220 (the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, and the rear red external light emitting diode 226) is longer than the entire irradiation area The length in the horizontal direction of the IR is still long. The left end of the rear light source system 220 is on the left side of the left end of the IR irradiation area, and the right end of the rear light source system 220 is on the right side of the right end of the IR irradiation area. position. With such a configuration, the light emitted by the rear ultraviolet light emitting diode 224 and the rear red external light emitting diode 226 will cover the entire irradiation area IR and uniformly illuminate (for the entire irradiation area IR, it is widely covered. illumination). The front-side light source system 210 (front-side RGB light-emitting diodes 212, front-side ultraviolet light-emitting diodes 214, and front-side red light-emitting diodes 216) can also be configured in the same way. The light from the front-side light source system 210 and the rear-side light source system 220 can be illuminated through the valley of the irradiation area IR with almost uniform illuminance at all positions in the irradiation area IR. The object does not depend on the position of the IR in the irradiation area, and the quality of the grain passing through the IR in the irradiation area can be appropriately judged.

<Radiation range and timing (TIMING)>

In addition, as mentioned above, the grains are guided from the storage tank 120 to the slideway 140 by the vibration feeder 130. The grains stored in the bucket 120 are distributed to any one of the 60 chute grooves 146 by the vibration of the vibration feeder 130. For the distribution of grains to the chute groove 146, because the vibration of the vibrating feeder 130 is used, the guiding of the grain to the chute groove 146 is random, and the timing of guiding the grain to the chute groove 146 (TIMING ) Is also random.

Therefore, the guiding of the grain to the chute ditch 146 is also determined randomly, and the timing of the beginning of the falling of the grain (TIMING) is also determined randomly. Therefore, it is necessary to constantly detect grains falling from 60 chute grooves 146, covering the entire 60 chute grooves 146. In this way, the CIS232 for the visible light domain, the CIS234 for the near-infrared light domain, the front CMOS CAMERA 236, and the rear CMOS CAMERA 238 need to receive light at all times for all 60 chute grooves 146 and output light receiving signals. That is, CIS232 for visible light domain, CIS234 for near-infrared light domain, front CMOSCAMERA236, and rear CMOSCAMERA238 perform constant light reception (detection) for the entire long horizontally extended irradiation area IR (refer to Figure 2(a)) , Photography), output the light signal.

<<<Configuration of chute groove 146 and exhaust hole 414>>>

As mentioned earlier, grains are randomly allocated to any of the 60 chute grooves 146 One. That is, a grain is randomly guided to any one of the 60 chute grooves 146. Once the grain is guided to a chute groove 146, it will be guided by that chute groove 146 and fall from that chute groove 146. That is, the grains that are guided and dropped by one chute groove 146 can be controlled by corresponding to one chute groove 146. As will be described later, when the grains judged as defective are to be removed, they are controlled as grains corresponding to one chute groove 146.

As shown in FIG. 2(a) and FIG. 2(b), 60 chute grooves 146 are each corresponding to each other, and the exhaust hole 414 of the air gun 410 is formed. That is, in response to the 60 chute grooves 146, 60 vent holes 414 are formed. For example, the 37th chute groove 146 corresponds to the 37th exhaust hole 414 (refer to the downward arrow direction in Fig. 2(a)).

When leaving the chute groove 146 and the falling grain is judged to be defective, the air gun 410 of the air gun drive system 400 is driven to face the falling grain, and air is discharged from the exhaust hole 414 to change the moving direction of the falling grain , Guide it to the storage bucket groove 154 for defective products (refer to FIG. 12 and FIG. 13 described later).

As described above, the exhaust holes 414 are arranged corresponding to the respective chute grooves 146 (refer to FIG. 2(b)), and only the moving direction of the grains judged to be defective can be changed. In addition, the grains judged to be good products fall directly without changing the moving direction, and are stored in the good product storage bucket 152.

In this way, the grains falling from each chute groove 146 are judged as good or not one by one, and the grains judged as defective are exhausted from the exhaust hole 414 corresponding to the chute groove 146, and the moving direction of the falling is changed. By changing the direction of movement of the grains, the defective grains can be guided to the defective storage barrel 154 and removed. That is, when the grains that are guided and dropped by the chute groove 146 are judged as good or bad from the corresponding chute groove 146, and are judged as defective, only the device corresponding to the chute groove 146 will be removed. Defective grains.

For example, when grains that fall guided by the No. 18 chute groove 146 are judged to be defective, the vent hole 414 corresponding to the No. 18 chute groove changes the direction of movement of the grain through the exhaust air and guides the grain. Lead to the storage barrel slot 154 for defective products.

In addition, by controlling the timing (TIMING) of the grains judged to be defective products passing through the front of the exhaust hole 414, and controlling the air discharge through the exhaust hole 414, the defective grains can be reliably removed. The timing (TIMING) of this exhaust hole 414 to exhaust air will be described in detail later.

<<<Control Processing Department 300>>>

As shown in FIG. 6, the control processing system 300 has a signal processing board 310, an image processing board 320, an air gun control board 330, and a light source control device 340.

<<Signal Processing Board 310>>

The signal processing substrate 310 mainly has a CPU (central processing unit), ROM (Read-Only Memory), RAM (Random Access Memory), I/O PORT (input and output ports), and communication IF ( Communication interface) (not shown).

The aforementioned CIS232 for the visible light domain and CIS234 for the near-infrared light domain are connected to the I/OPORT (input and output port) of the signal processing board 310 And can communicate. The CIS232 for the visible light domain and the CIS234 for the near-red outer light domain output received light signals based on the received visible light and near-red outer light. The light reception signals output from the CIS232 for the visible light domain and the CIS234 for the near-infrared light domain are input to the signal processing board 310 through the I/OPORT.

The CPU of the signal processing board 310 receives light reception signals output from the CIS232 for the visible light domain and the CIS234 for the near-infrared light domain to determine the quality of the grain. In addition, the CPU of the signal processing board 310 determines that it is a defective product, and at the same time, outputs a control signal for driving an air gun valve 412 described later through the communication IF.

<Reception of CIS232 for visible light domain and CIS234 for near-infrared light>

As mentioned above, the chute grooves 146 that guide the grains are random, and the timing of the beginning of the fall of the grains is also random. Therefore, it is necessary to constantly detect the grains falling from all 60 chute grooves 146. In this way, the CIS232 for the visible light domain and the CIS234 for the near-infrared light domain require light reception at all times for all 60 chute grooves 146, and it is necessary to output light reception signals. Therefore, the light reception signals output by the CIS232 for the visible light domain and the CIS234 for the near-infrared light domain also include light reception information for all 60 chute grooves 146.

<Received signal output by CIS232 for visible light domain>

As mentioned above, the light reception signal output by the CIS232 for the visible light domain includes 60 chute grooves 146. At a certain timing, the light reception information of the CIS232 for the visible light domain is included. In other words, the light receiving signal includes this timing. For example, when grains of a certain chute groove 146 appear in the irradiation area IR, the visible light emitted by the front RGB light-emitting diode 212 and the rear RGB light-emitting diode 222 Information such as the transmittance when light passes through the grains. In addition, when the grains of other chute grooves 146 are not in the irradiated area IR, they directly receive the visible light emitted from the front RGB light emitting diode 212 and the rear RGB light emitting diode 222. Included. In this way, the received light signal includes the transmittance information obtained by the 60 chute grooves 146 corresponding to each. The CPU of the signal processing board 310 judges the quality of the grain based on the information of the displayed transmittance.

<Received signal output by CIS234 for near infrared light domain>

In addition, the light reception signal output by the CIS234 for the near-infrared light domain includes 60 chute grooves 146. At a certain timing, the light reception information of the CIS234 for the near-infrared light domain is included. In other words, the light-receiving signal includes the timing, for example, when the grain of a certain chute groove 146 appears in the irradiation area IR, when the visible light emitted by the front infrared light emitting diode 216 and the rear red light emitting diode 226 passes through the grain In addition, the information on the visible light emitted from the front infrared light emitting diode 216 and the rear infrared light emitting diode 226 when the grain of the other chute groove 146 is not in the irradiation area IR is also included. . In this way, the received light signal includes the transmittance information obtained by the 60 chute grooves 146 corresponding to each. The CPU of the signal processing board 310 judges the quality of the grain based on the information of the displayed transmittance.

Regardless of whether it is a program for receiving the aforementioned light receiving signal, a program for judging whether the grain is good or not, or a program for generating a control signal, the air valve 412 of the air gun 410 is driven. ROM (Read-Only Memory) is the constant used in memorizing these programs.

RAM (Random Access Memory) is to store the values of variables used when executing the aforementioned various programs.

<<Image processing substrate 320>>

The image processing board 320 is the same as the signal processing board 310 and mainly has a CPU (central processing unit), ROM (Read-Only Memory), RAM (Random Access Memory), and I/O PORT (input Output port) and communication IF (communication interface) (not shown).

The aforementioned front CMOS CAMERA 236 and rear CMOS CAMERA 238 are connected to the I/O PORT (input and output port) of the image processing substrate 320 and can communicate. The front CMOSCAMERA236 and the rear CMOSCAMERA238 output received light signals based on the received visible light and fluorescent light. The light-receiving signals output by the front CMOS CAMERA 236 and the rear CMOS CAMERA 238 are input to the image processing substrate 320 through the I/O PORT.

The CPU of the image processing board 320 receives the light receiving signals output by the front CMOS CAMERA 236 and the rear CMOS CAMERA 238, and judges the quality of the grain. In addition, when the CPU of the image processing board 320 determines that it is defective, it outputs a control signal for driving the air gun valve 412 described later through the communication IF.

<Receiving light of front CMOSCAMERA236 and rear CMOSCAMERA238>

As mentioned above, the chute grooves 146 that guide the grains are random, and the timing of the beginning of the fall of the grains is also random. Therefore, it is necessary to constantly detect the grains falling from all 60 chute grooves 146. In this way, the front CMOS CAMERA 236 and the rear CMOS CAMERA 238, for all 60 chute grooves 146, always receive light, and it is necessary to output light signals. Therefore, the light receiving signals output by the front CMOS CAMERA 236 and the rear CMOS CAMERA 238 also include light receiving information for all 60 chute grooves 146.

<Receiving signal output by CMOSCAMERA236 on the front side>

As mentioned above, the light reception signal output by the front CMOS CAMERA 236 includes 60 chute grooves 146. At a certain time, the light reception information of the front CMOS CAMERA 236 is included. In other words, the received light signal includes this timing. For example, when the grain of a certain chute groove 146 appears in the irradiation area IR, the visible light emitted by the front RGB light emitting diode 212 and the rear RGB light emitting diode 222 is reflected by the grain Reflectance information at time. In addition, when the grain of the other chute groove 146 is not in the irradiation area IR, the information that the visible light emitted by the front RGB light emitting diode 212 and the rear RGB light emitting diode 222 is not reflected by the grain is also included. In this way, the received light signal includes the reflectance information obtained by the 60 chute grooves 146 corresponding to each. The CPU of the image processing substrate 320 judges the quality of the grain based on the information of the displayed reflectance.

In addition, when the grain of a certain chute groove 146 at this timing appears in the irradiation area IR in the received light signal, and mold and other bacteria are also produced on the grain, the front side ultraviolet light emitting diode 214 and the rear side ultraviolet light emitting diode 214 The information of the fluorescence generated by the deep ultraviolet light emitted by the polar body 224 is also included in the light receiving signal. When the grains of the other chute grooves 146 are not in the irradiation area IR, the information that the deep ultraviolet light of the front ultraviolet light emitting diode 214 and the rear ultraviolet light emitting diode 224 does not generate fluorescence is also included. So, the received light signal , Contains the information of the fluorescence generated by the 60 chute grooves 146 corresponding to each. The CPU of the image processing substrate 320 judges the quality of the grain based on the information generated by the fluorescence.

<Receiving signal output by CMOSCAMERA238 on the rear side>

As mentioned above, the light receiving signal output by the rear CMOS CAMERA 238 includes 60 chute grooves 146, and at a certain time, the light receiving information of the rear CMOS CAMERA 238. In other words, the received light signal includes this timing. For example, when the grain of a certain chute groove 146 appears in the irradiation area IR, the visible light emitted by the front RGB light emitting diode 212 and the rear RGB light emitting diode 222 is reflected by the grain Reflectance information at time. In addition, when the grain of the other chute groove 146 is not in the irradiation area IR, the information that the visible light emitted by the front RGB light emitting diode 212 and the rear RGB light emitting diode 222 is not reflected by the grain is also included. In this way, the received light signal includes the reflectance information obtained by the 60 chute grooves 146 corresponding to each. The CPU of the image processing substrate 320 judges the quality of the grain based on the information of the displayed reflectance.

In addition, when the grain of a certain chute groove 146 at this timing appears in the irradiation area IR in the received light signal, and mold and other bacteria are also produced on the grain, the front side ultraviolet light emitting diode 214 and the rear side ultraviolet light emitting diode 214 The information of the fluorescence generated by the deep ultraviolet light emitted by the polar body 224 is also included in the light receiving signal. When the grains of the other chute grooves 146 are not in the irradiation area IR, the information that the deep ultraviolet light of the front ultraviolet light emitting diode 214 and the rear ultraviolet light emitting diode 224 does not generate fluorescence is also included. So, the received light signal , Contains the information of the fluorescence generated by the 60 chute grooves 146 corresponding to each. The CPU of the image processing substrate 320 judges the quality of the grain based on the information generated by the fluorescence.

<<Air gun control board 330>>

The air gun control board 330 is the same as the signal processing board 310 and the image processing board 320, and mainly has a CPU (central processing unit), ROM (Read-Only Memory), RAM (Random Access Memory), I/O PORT (input and output port) and communication IF (communication interface) (not shown).

The aforementioned signal processing board 310 and image processing board 320 are connected to the communication IF of the air gun control board 330 to enable communication. The signal processing board 310 and the image processing board 320 output various information and control signals for driving the air gun air valve 412 through the communication IF, and are input to the air gun control board 330.

The air gun control board 330 starts timing when the timing start timing (TIMING) arrives, and from the start of timing to the elapse of the standby time, it outputs an open control signal for opening the air gun air valve 412 to the air gun 410. The air gun 410 uses the input opening control signal as an opportunity to open the air gun air valve 412.

After the air gun control board 330 outputs an opening control signal to the air gun 410, when the air valve opening time has elapsed, it outputs a lock control signal to lock the air gun air valve 412 to the air gun 410. The air gun 410 uses the input lock control signal as an opportunity to lock the air gun air valve 412.

<<Light source control device 340>>

The light source control device 340 controls the front light source system 210 and the rear light source system 220. Specifically, the light source control device 340 controls the lighting, turning off, and luminous intensity of the front RGB light emitting diodes 212, the front ultraviolet light emitting diodes 214, and the front infrared light emitting diodes 216 of the front light source system 210. Similarly, the light source control device 340 controls the lighting, extinguishing, luminous intensity, etc. of the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, and the rear infrared light emitting diode 226 of the rear light source system 220 .

The light source control device 340 can independently control the front RGB light emitting diode 212, the front ultraviolet light emitting diode 214, the front infrared light emitting diode 216, the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224 and the rear The side infrared light emitting diode 226 lights up, lights off, and emits light intensity. That is, the light source control device 340 can arbitrarily turn on or off any one of the six light-emitting diodes. In addition, the light source control device 340 can also suitably control the luminous intensity of any one of the six light-emitting diodes.

In addition, the front side RGB light emitting diode 212, the front side ultraviolet light emitting diode 214, the front side infrared light emitting diode 216, the rear side RGB light emitting diode 222, the rear side ultraviolet light emitting diode 224 and the rear side infrared light emitting diode Body 226, the above can also be combined arbitrarily to achieve linkage control.

As mentioned above, the front RGB light-emitting diodes 212 and the rear RGB light-emitting diodes 222 are composed of three kinds of light-emitting diodes: red light-emitting diodes, green light-emitting diodes, and blue light-emitting diodes. The light source control device 340 can independently control the red light-emitting diode and the green light-emitting diode that constitute the front RGB light-emitting diode 212 and the rear RGB light-emitting diode 222 Polar body, blue light-emitting diode. That is, the light source control device 340 can independently control the lighting of the red light emitting diodes, the green light emitting diodes, and the blue light emitting diodes that constitute the front RGB light emitting diodes 212 and the rear RGB light emitting diodes 222. Turn off lights, luminous intensity, etc. Therefore, because the red light-emitting diodes, green light-emitting diodes, and blue light-emitting diodes can be lighted, turned off, and luminous intensity can be controlled, the front RGB light-emitting diodes 212 and the rear RGB light-emitting diodes can be controlled. The pole body 222 emits the desired light.

In this way, because the light source control device 340 can independently control the light emitting diodes constituting the front RGB light emitting diodes 212 and the rear RGB light emitting diodes 222, it can illuminate suitable light according to the type of grain and the type of defects. In addition, it is possible to reliably detect defects that occur according to the type of grain.

As in the foregoing example, the light source control device 340, the signal processing substrate 310, and the image processing substrate 320 can individually control the light emitting diodes constituting the front RGB light emitting diode 212 and the rear RGB light emitting diode 222. However, it is also possible to connect the light source control device 340 with the signal processing substrate 310 and the image processing substrate 320, etc., so that they can communicate, responding to commands from the signal processing substrate 310 and the image processing substrate 320, etc., and the light source control device 340 will control the configuration The front side RGB light emitting diode 212 and the rear side RGB light emitting diode 222 are light emitting diodes. With this configuration, the lighting, extinguishing, luminous intensity, etc. of the light-emitting diode can be controlled in accordance with the detection result and the determination result, so that defects that occur in accordance with the type of grain can be detected more reliably.

In addition, the light source control device 340 may not be transmitted through The signal processing substrate 310 and the image processing substrate 320 directly control the light emitting diodes constituting the front RGB light emitting diode 212 and the rear RGB light emitting diode 222. In this way, not only can the structure of the object sorting device 10 be simplified, but also the light-emitting diodes constituting the front RGB light-emitting diodes 212 and the rear RGB light-emitting diodes 222 can be quickly controlled, and all the fallen grains can be determined reliably. .

<<<Control Processing of Control Processing System 300>>>

In the following, the object sorting device is activated, and after the initial operations of the signal processing board 310, the image processing board 320, and the air gun control board 330 are all completed, they operate constantly and stably.

<Signal processing board judgment processing>

FIG. 7 and FIG. 8 are the signal processing board determination processing executed in the signal processing board 310. FIG.

At the beginning, the CPU of the signal processing board 310 first determines a chute groove 146 to be inspected (step S711). As mentioned above, in the present embodiment, there are 60 chute grooves 146 from the first chute groove 146 to the 60th chute groove 146. The processing of step S711 is to determine the chute groove 146 , A numbered chute groove. The processing of the following steps S713 to S832 is processing for determining the quality of the grain falling from the chute groove 146 whose number is determined by the processing of step S711.

Next, the CPU of the signal processing board 310 determines whether or not the received light intensity of the CIS232 for the visible light range is greater than or equal to the first predetermined value (step S713). The first fixed value mentioned here is a value related to visible light transmittance, which is a value that depends on the color of the grain, and can be appropriately determined and responded as Defective product, the color of the grain that should be removed. That is, the determination processing of step S713 is to determine whether the grain is defective or not based on the color of the grain. For example, the grains are in a dark state, and therefore, the grains that have turned into a dark state are judged for removal as defective products.

In the determination process of step S713, the CPU of the signal processing board 310 determines that the received light intensity of the CIS232 for the visible light region is greater than the first predetermined value (YES), determines the timing start timing (TIMING) (step S715), and determines the standby time ( Step S717), determine the valve opening time (step S719).

The aforementioned "timing start timing (TIMING)", "standby time" and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410. (Refer to Figure 15). Figure 15 is a timing chart showing the relationship among "timing start timing (TIMING)", "standby time", and "valve opening time".

The "timing start timing (TIMING)" is the start period of the timer that is activated in order to determine the timing (TIMING) of the opening and closing control of the air valve 412. After starting the timer, timing starts and the timer value will be updated. According to the timer value, determine whether the "standby time" and "valve opening time" have passed.

"Standby time" is the time to wait until the valve opening control is executed. That is, in the determination process of step S713, when it is determined that the received light intensity of the CIS232 for the visible light range is greater than the first predetermined value, and the grain is determined to be defective, the valve 412 is not opened immediately, and the air valve 412 is executed after the waiting time has elapsed. Opening control of valve 412 (time t3 in Fig. 15). Conggu It takes a certain amount of time for the grain to be judged as defective until the grain falls to the front of the air gun 410 exhaust hole 414. The time from when the grain is judged to be defective to the front of the exhaust hole 414 of the air gun 410 is the standby time.

When the "standby time" is too short, the timing of opening the air valve 412 (TIMING) will be earlier, and the air flow blown from the air gun 410 will hit the grains that fall earlier than the grains that are judged as defective. The grains that fall first and are judged to be good are removed. In addition, when the "standby time" is too long, the timing of opening the air valve 412 (TIMING) will be delayed, and the timing of starting to blow air to the defective grains (TIMING) will also be delayed. As a result, the amount of air that can only be supplied to defective grains is insufficient, and the moving direction cannot be completely changed. As a result, it cannot be guided to the storage tub 154 for defective products, and there is a possibility that defective grains are mixed with good grains. Therefore, in order to reliably remove only the grains that are judged as defective, it is necessary to set an appropriate "standby time".

When the weight is light, the falling speed becomes slower, and the time until it reaches the front of the exhaust hole 414 becomes longer. Therefore, if the weight is light, it is necessary to set the "standby time" longer. In addition, if the mass is heavy, the falling speed becomes faster, and the time to reach the front of the exhaust hole 414 becomes shorter. Therefore, if the quality of the grain is heavy, it is necessary to shorten the "standby time" setting.

The "valve opening time" is the time from opening the air valve 412 to closing (time t4 in FIG. 15), which is the time during which the air valve 412 is opened and air is discharged from the exhaust hole 414. According to the "valve opening time", a certain amount of air is discharged, and the air flow is blown to the grains judged as defective products to exert a certain force (impulse) on the grains. In addition, When the "valve opening time" is too short, the timing of closing the valve 412 (TIMING) will be earlier, and therefore the timing (TIMING) of blowing air to the grains judged to be defective will also be earlier. As a result, an insufficient amount of air can only be provided to the defective grains, and the moving direction cannot be completely changed. As a result, it cannot be guided to the storage tub 154 for defective products, and there is a possibility that defective grains are mixed with good grains. In addition, when the "valve opening time" is too long, the air flow blown from the air gun 410 will hit the grains that fall later than the grains that are judged as defective. In this case, the grains judged as good may be removed. . Therefore, in order to reliably remove only grains that are judged as defective, it is necessary to set an appropriate "valve opening time".

As described above, when the weight is light, the falling speed becomes slower, and the time to pass in front of the exhaust hole 414 becomes longer. Therefore, when the grain quality is light, it is necessary to set the "valve opening time" longer. In addition, when the mass is heavy, the falling speed becomes faster, and the time to pass in front of the exhaust hole 414 becomes shorter. Therefore, when the grain quality is heavy, it is necessary to set the "valve opening time" to be shorter.

The CPU of the signal processing board 310 outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 after executing the process of step S719 (step S721), and this slide The groove number is a number corresponding to the chute groove 412 judged as bad grain.

Next, the CPU of the signal processing board 310 outputs an NG signal indicating that the received light intensity of the CIS232 for the visible light region is greater than or equal to the first predetermined value to the air gun control board 330 (step S722).

In this embodiment, as shown in Figure 15, the NG signal The number is a signal composed of one pulse wave. The air gun control board 330 receives the NG signal to detect the occurrence of defective grains and execute the control process of driving the air valve 412. As mentioned above, the NG signal is a signal composed of one pulse wave, and has a pulse wave rising part (time t1) and a falling part (time t2). The aforementioned "timing start timing (TIMING)" is information that displays either the rising part or the falling part of the pulse wave. That is, the "timing start timing (TIMING)" is to determine the information that the pulse wave rising part is used as the starting period of time measurement or the pulse wave falling part is used as the starting period of time measurement.

As shown in Figure 15, when the rising part of the pulse wave is set as the "timing start timing (TIMING)", the standby time can be set longer, and when the falling part of the pulse wave is set as the "timing start timing (TIMING)", you can set The standby time is set short.

The CPU of the signal processing board 310 judges that the received light intensity of the visible light domain CIS232 is not greater than the first predetermined value (NO) after the judgment process of the aforementioned step S713, or after the processing of step S721 is completed, judges the visible light domain CIS232 light reception Whether the intensity is below the second predetermined value (step S723). Here, the second predetermined value is a value related to the visible light transmittance, and is a value that depends on the color of the grain, and can be appropriately determined and responded to. The color of the grain that should be removed as a defective product. For example, the grain has become a thin-colored state, so the grain that has become a thin-colored state is judged as a defective product for removal.

In the determination process of step S723, the CPU of the signal processing board 310 determines that the received light intensity of the CIS232 for the visible light region is less than the second predetermined value (YES), and determines the timing start timing (TIMING) (step S725), determine the standby time (step S727), and determine the valve opening time (step S729). As mentioned above, the so-called "timing start timing (TIMING)", "standby time", and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

The CPU of the signal processing board 310 outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 after executing the process of step S729 (step S731).

Next, the CPU of the signal processing board 310 outputs an NG signal indicating that the received light intensity of the CIS232 for the visible light region is below the second predetermined value to the air gun control board 330 (step S732).

When the CPU of the signal processing board 310 determines that the received light intensity of the CIS232 for the visible light range is not less than the second predetermined value through the determination process of the aforementioned step S723 (NO), or executes the process of step S732, the process moves to step S813.

The CPU of the signal processing board 310 determines whether or not the received light intensity of the CIS234 for the near-infrared light region is greater than or equal to the first predetermined value (step S813). Here, the first predetermined value is a value related to the near-infrared light transmittance, a value determined by the amount of moisture, and the amount of moisture that should be removed as a defective product can be appropriately determined and responded to.

The CPU of the signal processing board 310 determines the light reception signal from the CIS234 for near-infrared light in the determination process of step S813, and when the moisture content obtained is greater than the first predetermined value (YES), the timing start timing (TIMING) is determined (Step S815), determine the standby time (step S817), determine The fixed air valve opening time (step S819). As mentioned above, the so-called "timing start timing (TIMING)", "standby time" and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

After the CPU of the signal processing board 310 executes the processing of step S819, it outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 (step S821).

Next, the CPU of the signal processing board 310 outputs an NG signal indicating that the received light intensity of the CIS232 for the visible light region is greater than the first predetermined value to the air gun control board 330 (step S822).

When the CPU of the signal processing board 310 determines that the received light signal from the CIS234 for near-infrared light is not the first predetermined value or more in the judgment process of step S813 described above (NO), or the process of step S821 is executed After the completion, it is judged whether or not the moisture content obtained from the light reception signal of the CIS234 for near-infrared light is below the second predetermined value (step S823). Here, the second predetermined value is a value related to the near-infrared light transmittance, and is a value determined by the amount of moisture, and can be appropriately determined and responded to as a defective product. The amount of moisture that should be removed.

The CPU of the signal processing board 310 determines the light reception signal from the CIS234 for near-infrared light in the determination process of step S823, and when the moisture content obtained is less than the second predetermined value (YES), the timing start timing (TIMING) is determined (Step S825), determine the waiting time (step S827), and determine the valve opening time (step S829). As mentioned earlier, the so-called "timing start timing (TIMING)", "standby time" and "valve opening time" refer to The parameters used for the opening and closing control of the air valve 412 of the air gun 410 are described.

The CPU of the signal processing board 310 outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 after executing the process of step S829 (step S831).

Next, the CPU of the signal processing board 310 outputs an NG signal indicating that the received light intensity of the CIS232 for the visible light region is below the second predetermined value to the air gun control board 330 (step SS832).

When the CPU of the signal processing board 310 determines that the received light signal from the CIS234 for near-infrared light is not the second predetermined value or less (NO) in the judgment processing of step S823, or the processing of step S832 is completed At this time, the CPU of the signal processing board 310 will determine whether all the chute grooves 146 of the inspection target have been detected (step S833). If it is determined that all the chute grooves 146 of the inspection target are not detected (NO), the process returns to the aforementioned step S711. On the other hand, when it is judged that all the chute grooves 146 of the inspection object have been detected (YES), this subroutine (SUBROUTINE) is terminated. In this way, all 60 chute grooves 146 can be detected.

<Image processing substrate judgment processing>

Figures 9 and 10 show the image processing substrate judgment processing performed in the image processing substrate 320.

First, the CPU of the image processing board 320 determines one chute groove 146 that is the most inspection target (step S911). As mentioned above, in this embodiment, the chute groove 146 is from the first chute groove 146 to There are 60 chute grooves 146 of the 60th, and the process of step S911 is the process of determining the number of chute grooves 146.

Next, the CPU of the image processing board 320 determines whether or not the received light intensity of the front CMOS CAMERA 236 is greater than or equal to the first predetermined value (step S913). Here, the so-called first predetermined value refers to a value related to the intensity of fluorescence. The value depends on the color of the grain and the state in which the fungus is generated. It can be appropriately determined and responded to. The state of the grain that should be removed as a defective product. That is, the determination processing in step S913 is processing for determining whether or not the cereal is defective, with respect to the state of the cereal. For example, to determine whether or not molds and other bacteria have occurred on the grain.

When the CPU of the image processing board 320 determines that the received light intensity of the front CMOS CAMERA 236 is equal to or greater than the first predetermined value in the determination process of step S913 (YES), it determines the timing start timing (TIMING) (step S915) and determines the standby time (step S917) ), determine the valve opening time (step S919). Similar to the signal processing board 310, the "timing start timing (TIMING)", the "standby time", and the "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

After the CPU of the image processing board 320 executes the processing of step S919, it outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 (step S921). This chute groove number is the number corresponding to the chute groove 412 judged as bad grain.

Next, the CPU of the image processing board 320 will display that the received light intensity of the front CMOS CAMERA 236 is above the first predetermined value The NG signal is output to the air gun control board 330 (step S922).

When the CPU of the image processing board 320 determines that the received light intensity of the front CMOS CAMERA 236 is not greater than the first predetermined value in the determination process of step S913 described above (NO), or after performing the processing of step S922, determines the received light intensity of the front CMOS CAMERA 236 Is it less than the second predetermined value (step S923). Here, the second predetermined value is a value related to the intensity of fluorescence. It is a value that depends on the color of the grain and the state of the occurrence of fungi. It can be appropriately determined and responded to. The state of the grain that should be removed as a defective product. That is, the determination process of step S923 is a process of determining whether or not the cereal is defective with respect to the state of the cereal. For example, to determine whether or not molds and other bacteria have occurred on the grain.

When the CPU of the image processing board 320 determines that the received light intensity of the front CMOS CAMERA 236 is below the second predetermined value in the determination process of step S923 (YES), it determines the timing start timing (TIMING) (step S925) and determines the standby time (step S925). S927). Determine the valve opening time (step S929). As mentioned above, the so-called "timing start timing (TIMING)", "standby time" and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

After the CPU of the image processing board 320 executes the processing of step S929, it outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 (step S931).

Next, the CPU of the image processing board 320 will display that the received light intensity of the front CMOS CAMERA 236 is below the second predetermined value The NG signal is output to the air gun control board 330 (step S932).

When the CPU of the image processing board 320 determines that the received light intensity of the front CMOS CAMERA 236 is not below the second predetermined value in the determination process of step S923 (NO), or executes the process of step S932, the process moves to step S1013.

The CPU of the image processing board 320 judges whether the received light intensity of the rear CMOS CAMERA 238 is greater than or equal to the first predetermined value (step S1013). Here, the first predetermined value is a value related to the visible light reflectance, and is a value that depends on the color of the grain and the state of bacteria generation. The state of the grains that should be removed as defective products can be appropriately determined and responded to. That is, the determination process of step S1013 is a process of determining whether the grain is defective or not with respect to the state of the grain. For example, to determine whether or not molds and other bacteria have occurred on the grain.

The CPU of the image processing board 320 determines that the received light intensity of the CMOS CAMERA 238 on the rear side is equal to or greater than the first predetermined value (YES) in the determination process of step S1013, determines the timing start timing (TIMING) (step S1015), and determines the standby time (step S1015). S1017). Determine the opening time (step S1019). As mentioned above, the so-called "timing start timing (TIMING)", "standby time" and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

After the CPU of the image processing board 320 executes the process of step S1019, it outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 (step S1021).

Next, the CPU of the image processing board 320 outputs an NG signal indicating that the received light intensity of the front CMOS CAMERA 238 is below the first predetermined value to the air gun control board 330 (step S1022).

When the CPU of the image processing board 320 determines that the received light intensity of the rear CMOS CAMERA 238 is not greater than the first predetermined value in the determination process of the aforementioned step S1013 (NO), or when the processing of step S1021 is executed, it determines that the rear CMOS CAMERA 238 is Whether the received light intensity is less than or equal to the second predetermined value (step S1023). Here, the second predetermined value is a value related to visible light reflectance, and is a value that depends on the color of the grain and the state of fungus generation, etc., and can be appropriately determined and responded to. The state of the grain that should be removed as a defective product. That is, the determination process of step S1023 is a process of determining whether the grain is defective or not with respect to the state of the grain. For example, to determine whether or not molds and other bacteria have occurred on the grain.

When the CPU of the image processing board 320 determines that the received light intensity of the CMOS CAMERA 238 on the rear side is below the second predetermined value in the determination process of step S1023 (YES), it determines the timing start timing (TIMING) (step S1025) and determines the standby time (step S1025). S1027). Determine the valve opening time (step S1029). As mentioned above, the so-called "timing start timing (TIMING)", "standby time" and "valve opening time" refer to the parameters used for the opening and closing control of the air valve 412 of the air gun 410.

After the CPU of the image processing board 320 executes the processing of step S1029, it outputs the chute groove number, timing start timing (TIMING), standby time, and air valve opening time to the air gun control board 330 (step S1031).

Next, the CPU of the image processing board 320 outputs an NG signal indicating that the received light intensity of the rear CMOS CAMERA 238 is below the second predetermined value to the air gun control board 330 (step S1032).

When the CPU of the image processing board 320 determines that the received light intensity of the rear CMOS CAMERA 238 is not below the second predetermined value in the determination process of step S1023 (NO), or when the processing of step S1032 is completed, the CPU of the image processing board 320 determines For all the chute grooves 146 of the inspection object, it is judged whether or not they have been detected (step S1033). If it is determined that all the chute grooves 146 of the inspection target are not detected (NO), the process returns to the aforementioned step S911. On the other hand, when it is judged that all the chute grooves 146 of the inspection object have been detected (YES), this subroutine (SUBROUTINE) is terminated. In this way, all 60 chute grooves 146 can be detected.

<Air valve opening and closing control processing>

Fig. 11 shows the air valve opening and closing control processing executed by the air gun control board 330. The air valve opening and closing control processing is based on the timer embedded processing in the air gun control board 330, and it is called out and executed at a predetermined time.

First, the CPU of the air gun control board 330 determines whether it has received the chute groove number, timing start timing, standby time, and air valve opening time from the signal processing board 310 and the image processing board 320 (step S1111).

The CPU of the air gun control board 330 determines that it has received the chute grooves from the signal processing board 310 and the image processing board 320 When the number, timing start timing, standby time, and valve opening time (YES), corresponding to the chute groove number, the timing start timing, standby time, and valve opening time are stored in the RAM of the air gun control board 330 (step S1113 ), this subroutine (SUBROUTINE) is ended.

When the CPU of the air gun control board 330 determines that the chute groove number, timing start timing, standby time, and air valve opening time from the signal processing board 310 and the image processing board 320 are not received in the determination process of step S1111 ( NO), it is judged whether an NG signal is received (step S1115).

When the CPU of the air gun control board 330 determines that the NG signal has been received (YES), it corresponds to the chute groove number, starts timing (step S1117), and ends this subroutine (SUBROUTINE).

As mentioned earlier, the NG signal is a signal composed of one pulse wave, and has a pulse wave rising part and a falling part. In addition, the "timing start timing (TIMING)" is for setting the pulse wave rising part as the starting period of timekeeping, or the pulse wave falling part as the information of the starting period of timekeeping. This "timing start timing (TIMING)" is stored in the RAM corresponding to the chute groove number in the processing of step S1113. The processing of step S1117 is to read the chute groove number that received the NG signal in the processing of step S1115, its corresponding "timing start timing (TIMING)", respond to "timing start timing (TIMING)", and start from the pulse Time the rising part of the wave or the falling part of the pulse wave.

When the CPU of the air gun control board 330 judges that the NG signal is not received (NO), it judges whether there is any slippage that has passed the standby time. Ditch 146 (step S1119). The determination process of this step S1119 is to determine whether there is a chute groove 146 whose standby time has passed from the 60 chute grooves 146.

The CPU of the air gun control board 330 determines that there is a chute groove 146 after the standby time (YES), and outputs the control signal for opening the air valve 412 corresponding to the chute groove 146 to the air gun 410 (step S1121), and the end This subroutine (SUBROUTINE). After this process, the air valve 412 of the air gun 410 is opened, and the air is discharged from the exhaust hole 414.

When the CPU of the air gun control board 330 determines that there is no chute groove 146 whose standby time has passed (NO), it judges whether there is a chute groove 146 whose air valve opening time has passed (step S1123). The determination process in this step S1123 is a process of determining whether or not there is a chute groove 146 whose valve opening time has elapsed from the 60 chute grooves 146.

The CPU of the air gun control board 330 determines that the chute groove 146 that has passed the air valve opening time is present (YES), and outputs the control signal to lock the air valve 412 corresponding to the chute groove number to the air gun 410 (step S1125) , End this subroutine (SUBROUTINE). After this processing, the air valve 412 of the air gun 410 will be closed, and the exhaust of the air from the exhaust hole 414 is terminated.

Through this air valve opening and closing control process, the grains judged to be defective products are blown with an appropriate amount of air to apply force to the grains, and the grains can be guided to the storage bucket groove 154 for defective products.

<<<Specific example of changing grain moving direction>>>

Figures 12 to 14 show schematic diagrams of specific examples of changing the direction of grain movement.

As shown in FIG. 12, the grain GR that has escaped from the chute 140 falls diagonally downward. When the grain GR appears in the irradiation area IR (black circle), the visible light emitted by the front RGB light emitting diode 212, the deep ultraviolet light emitted by the front ultraviolet light emitting diode 214, and the near infrared light emitted by the front infrared light emitting diode 216 The light, the visible light emitted by the rear RGB light emitting diode 222, the deep ultraviolet light emitted by the rear ultraviolet light emitting diode 224, and the near infrared light emitted by the rear infrared light emitting diode 226 are irradiated on the grain.

As described above, the front RGB light emitting diode 212 and the rear RGB light emitting diode 222 emit visible light transmitted through the grain GR, and the transmittance of the grain GR is detected.

In addition, the front RGB light emitting diodes 212 and the rear RGB light emitting diodes emit visible light reflected by the grain GR, and the reflectance of the grain GR is detected. In addition, the front infrared light emitting diode 216 and the rear infrared light emitting diode 226 emit near-red external light that passes through the grain, and the moisture of the grain GR is detected. In addition, with the deep ultraviolet light emitted by the front side ultraviolet light emitting diode 214 and the rear side ultraviolet light emitting diode 224, when the grain GR has the occurrence of molds and other bacteria, the fluorescence emitted from the molds is detected. From these detection results, it is determined whether the grain GR is good or bad.

When the grain GR is judged to be a defective product, the grain GR passes through the current front of the exhaust hole 414, and air is discharged from the exhaust hole 414, thereby changing the moving direction of the grain GR. In this way, the grain GR is guided to the storage bucket groove 154 for defective products. On the other hand, when the grain GR is judged to be a good product, the air vent 414 does not exhaust air, and the grain GR faces the good product storage tub groove 152.

<Falling grains under the GR, there are defective parts of FP production Birth>

As shown in FIG. 13, when there is a defective part FP under the falling grain GR, the defective part FP of the grain GR reaches the irradiation area IR (black circle) earlier than the central part CT of the grain GR. In addition, the defective part FP is the part judged as defective in terms of transmittance, reflectance, moisture, fluorescence, etc. as described above.

Generally, when there is a defective part FP below the central portion CT of the grain GR, the defective part FP can be detected at an earlier timing (TIMING) in the radiation area IR. Moreover, because the grain GR passes in front of the exhaust hole 414 earlier, the timing to start the air discharge (TIMING) also becomes earlier. The time for blowing air to the grain GR can be set longer, so the grain GR can be given Ample air volume. In this way, the moving direction of the grain GR can be changed, and the grain GR can be reliably guided to the storage bucket groove 154 for defective products.

In addition, when there is a defective part FP in the whole grain GR, the defective part FP at the lower end of the grain GR is detected first. Therefore, similarly, the defective part FP can be detected early, and similarly, the grain GR can be given. Because of the sufficient air volume, the moving direction of the grain GR can be changed, and the grain GR can be guided to the storage bucket groove 154 for defective products.

<When the upper side of the grain GR is dropped, and the defective part FP occurs>

As shown in Fig. 14, when there is a defective part FP on the upper side of the fallen grain GR, the defective part FP of the grain GR reaches the irradiation area IR after the central part CT of the grain GR reaches the irradiation area IR.

In this way, when there is a defective part FP on the upper side of the central portion CT of the grain GR, the defective part FP will be detected at a relatively slow timing (TIMING) in the irradiation area IR. Therefore, because the grain GR will pass through the front of the exhaust hole 414 later, the timing of starting to discharge the air (TIMING) will also become later, and the blowing time for the grain GR will be shortened, and it will not be able to give full grain GR. Air volume. Therefore, it is conceivable that the moving direction of the grain GR cannot be changed, and it is difficult to reliably guide the grain GR to the storage bucket groove 154 for defective products.

<<<"timing start timing (TIMING)", "standby time", "valve opening time" >>>

Figure 15 is a timing chart showing the relationship between the "rising part" and "falling part" of the NG signal pulse wave, "timing start timing (TIMING)", "waiting time", and "valve opening time".

As mentioned above, the "timing start timing (TIMING)" is the start period of the timer that is started in order to determine the timing (TIMING) of the opening and closing control of the valve 412. In the present embodiment, as shown in Figure 15, the NG signal is a signal composed of one pulse wave. The start period of the timer can be set as the rising part of the pulse wave (time t1 in Figure 15) , Or the falling part of the pulse wave (time t2 in Figure 15). When the rising part of the pulse wave is used as the start period of the timer activation, the timing (TIMING) of the valve 412 opening control can be earlier (time t3 in FIG. 15). On the other hand, when the falling portion of the pulse wave is used as the start period of the timer activation, the timing (TIMING) of the opening control of the air valve 412 can be delayed (time t3 in FIG. 15). Keep the "standby time" for a certain period of time (do not change the "standby time"), you can change the timer start The starting period. In particular, when the mass of foreign objects is heavy, the falling speed is faster. Therefore, the rising part of the pulse wave is used as the start period of the timer to start the timing of the valve 412 opening control (TIMING), and the foreign objects reach the exhaust port. At the same time in front of 414, exhaust air to foreign objects.

The "standby time" is the standby time until the valve 412 opening control is executed. When the grain is judged to be defective, the air valve 412 is not opened immediately, and the opening control of the air valve 412 is executed after the waiting time has elapsed (time t3 in Fig. 15). When the grain is judged as defective, it takes a certain amount of time until the grain falls to the front of the air gun 410 exhaust hole 414. After this grain is judged to be defective, it is necessary to wait until it reaches the front of the exhaust hole 414 of the air gun 410. And this period is the standby time.

When the "standby time" is short, the timing of opening the air valve 412 (TIMING) will be earlier. Therefore, the air flow blown by the air gun 410 may be blown on the grains that fall earlier than the defective grains, and will fall first. Possibility of removing good grains. In addition, when the "standby time" is long, insufficient air volume is given to the defective grains, and the moving direction cannot be changed sufficiently. As a result, it cannot be guided to the storage bucket groove 154 for defective products, and there is a possibility that defective grains are mixed with good grains.

The "valve opening time" is the time from the opening of the air valve 412 to the closing (time t4 in FIG. 15), that is, the time during which air is discharged from the exhaust hole 414 when the air valve 412 is opened. Through the "valve opening time", a stable amount of air is discharged.

"Valve opening time" is short, giving non-performing grains A sufficient amount of air cannot sufficiently change the direction of movement. As a result, it cannot be guided to the storage tub 154 for defective products, and there is a possibility that defective grains are mixed with good grains. In addition, when the "valve opening time" is long, the air flow blown by the air gun 410 may blow on the grains that fall later than the defective grains, and there is a possibility of removing the grains judged to be good.

As mentioned above, when the grain quality is low, it is necessary to set the "standby time" longer. In addition, when the quality of the grain is heavy, it is necessary to set the "standby time" to be shorter. For example, when grains are dried due to defects, the quality becomes lighter, and it is necessary to set a longer "standby time". When grains have a lot of moisture due to poor quality, the quality becomes heavier. In addition, when foreign objects such as plastics are heavy, it is necessary to set the "standby time" to be shorter.

In addition, depending on the type of grain, information about the standard quality of good grains (average value or difference, etc.) is determined, and information about the standard falling speed of good grains (average value or difference, etc.) is also determined. From this standard falling speed, the "timing start timing (TIMING)", "standby time" and "valve opening time" can be determined. In other words, it is possible to determine the "timing start timing (TIMING)", the "standby time" and the "valve opening time" for determining that the good grain is good. In addition, depending on the type of grain, the deviation and change from the standard quality can also be determined according to the type that may be defective. That is, it is possible to determine the "timing start timing (TIMING)", the "waiting time" and the "valve opening time" for determining that the defective grain is defective.

In this way, the object sorting device 10 of this embodiment is not only the type of grain, but also the type that may cause defects. The "timing start timing (TIMING)", "standby time" and "valve" are determined. Opening hours". The "TIMING", "standby time" and "valve opening time" determined in this way are stored in the ROM and RAM of the signal processing board 310 and in the ROM and RAM of the image processing board 320. According to the type of defect, it is read from ROM and RAM, and output to the air gun control board 330.

Specifically, in the processing of steps S721 and S731 in Fig. 7, steps S821 and S831 in Fig. 8, steps S921 and S931 in Fig. 9, and steps S1021 and S1031 in Fig. 10, depending on the type of defect, From the ROM and RAM of the signal processing board 310, and from the ROM and RAM of the image processing board 320, read the "timing start timing (TIMING)", "standby time" and "valve opening time", and output to the air gun control The substrate 330. The air gun control board 330, according to the type of defect, discharges air from the exhaust hole 414 according to the "timing", "standby time" and "valve opening time", and can be determined as defective products. The grains are removed.

In addition, as illustrated in Figure 14, even if the timing (TIMING) at which the defective part FP can be detected, it can be estimated that a sufficient amount of air cannot be given to the grain GR. Therefore, in order to accurately remove only grains that are judged as defective, it is necessary to set an appropriate "valve opening time". According to the type of grain, the information about the standard grain size (average value and difference, etc.) has been determined. From the standard falling speed and size of the good grain, you can determine the "timing", "standby time" and " Valve opening time".

<<<Other forms>>>

In the foregoing example, although the case where the number of chute grooves 146 of the chute 140 is 60 is demonstrated, the number of chute grooves 146 is not limited to 60. For example, in addition to the number of grains processed per unit time, the types of grains, and the types of defects generated on the grains, the front-side light source 210 (front-side RGB light-emitting diode 212, front-side ultraviolet light-emitting diode 214, front-side infrared light-emitting diode) The shape and size of the diode 216), the shape and size of the rear light source 220 (the rear RGB light emitting diode 222, the rear ultraviolet light emitting diode 224, and the rear infrared light emitting diode 226) are suitable Make a decision.

In addition, in the foregoing example, although the number of light-emitting diodes such as red light-emitting diodes, green light-emitting diodes, and blue light-emitting diodes is 75, the number of light-emitting diodes is not limited to 75. In addition to the number of grains processed per unit time, the size and shape of the grains, etc., a suitable decision can be made according to the number of chute grooves 146 of the chute 140.

In addition, in the foregoing example, although the contact image sensor (Contact Image Sensor) used in the CIS232 for the visible light domain and the CIS234 for the near-infrared light domain was demonstrated, other image sensors, CMOSCAMERA and CCDCAMERA, as long as there is a sensor or CAMERA that can detect fallen grains, determine the quality of grains such as its permeability and water content, and obtain characteristic quantities.

In addition, in the foregoing example, although the CMOSCAMERA used in the front CMOSCAMERA236 and the rear CMOSCAMERA238 are demonstrated, it is also possible to use CCDCAMERA or a contact image sensor. Only the grains that fall can be detected, and the reflectivity and reflectance can be determined. firefly The quality of grains such as light, and the sensor or camera that obtains the characteristic quantity can be used.

In addition, in the foregoing example, as the optical characteristics that can determine the quality of the grain, although the transmittance, reflectance, water content, fluorescence, etc. are used, any feature quantity that can determine the quality of the grain may be used.

In addition, in the foregoing example, although it was demonstrated that the signal processing substrate 310 and the image processing substrate 320 are configured as separate bodies, they may be integrated. As long as it can be configured appropriately in accordance with the device for detecting falling grains and the acquired characteristic quantities. The overall structure can be simplified. In addition, in the foregoing example, the air gun control board 330 is also configured with the signal processing board 310 and the image processing board 320 in an individual manner, but if it is integrated with the signal processing board 310 and the image processing board 320 The composition is also acceptable. In this way, wiring work can be omitted, and the configuration can be simplified.

In addition, in the foregoing example, instead of determining the type of bacteria produced on grains, it demonstrates the process of removing grains where bacteria have occurred. However, if the wavelength of the detected fluorescence can be used to determine the type of bacteria, the grains may be removed separately according to the type of bacteria.

In addition, for each type of bacteria, the number of bacteria-growing grains can also be counted, and on the screen of the operation panel 160, the number of corresponding bacteria-growing grains is displayed. It can draw the tendency of the whole grain quality after sorting and processing.

<<<<Details of this implementation type>>>>

As mentioned above, the present invention is described in accordance with the form of this implementation, but constitutes Please do not understand the records and drawings of a part of the content of this announcement and limit this invention. Of course, the present invention also includes various embodiments that are not described here.

200: Optics

210: Front side light source

212: Front RGB LED

214: Front side ultraviolet light emitting diode (deep ultraviolet light emitting diode)

216: Front infrared light emitting diode (near infrared light emitting diode)

220: Rear side light source

222: Rear RGB LED

224: Rear UV LED (Deep UV LED)

226: Rear infrared light emitting diode (near infrared light emitting diode)

230: Checkout Department

232: CIS for visible light domain (Front CIS)

234: CIS for near infrared light domain (rear CIS)

236: Front CMOSCAMERA

238: Rear CMOSCAMERA

300: Control Processing Department

310: Signal processing substrate

320: Image processing substrate

330: Air gun control substrate

340: Light source control device

400: Air gun drive system

410: Air Gun

412: Valve

414: Vent

Claims (5)

An object sorting device, comprising: a light source unit having a first light source portion emitting visible light, a second light source portion emitting infrared light, and a third light source portion emitting ultraviolet light, which emit visible light and infrared light to a moving object . At least one kind of ultraviolet light; a detection unit having a first detection unit that detects visible light emitted from the first light source unit and irradiated to the object; detecting that it is emitted from the second light source unit and irradiated to the object A second detection unit for infrared light of the body, and a third detection unit for detecting fluorescence emitted from the object based on the ultraviolet light emitted from the third light source unit; the superiority and inferiority determining unit has a detection unit based on the first detection unit The first appropriateness determination unit that determines whether the transmittance or reflectance of the object is appropriate based on the detection result, the second appropriateness determination portion that determines whether the object is a foreign object based on the detection result of the second detection portion, and the The detection result of the third detection unit is a third appropriateness determining portion that determines whether the object has bacteria or not. The superiority or inferiority determining unit is based on the first appropriateness determining portion, the second appropriateness determining portion, and the foregoing The judgment result of at least one of the judgment results of the third appropriateness judgment unit determines the pros and cons of the moving object; the moving direction changing unit changes the moving direction of the object that is determined to be defective; and light emission control Unit for selecting at least one of the first light source section, the second light source section, and the third light source section Each light source unit, and controls the lighting, extinction, and luminous intensity of the selected light source unit. As for the object sorting device described in claim 1, the first light source section is a white light source composed of light sources of multiple colors capable of independently controlling light emission, and the light emission control unit independently controls the multiple colors The lighting, extinguishing and luminous intensity of the light source. According to the object sorting device described in the scope of patent application, the plurality of colors of the first light source section are red, blue, and green. An object sorting device, comprising: a light source unit having a first light source portion emitting visible light, a second light source portion emitting infrared light, and a third light source portion emitting ultraviolet light, which emit visible light and infrared light to a moving object . At least one kind of ultraviolet light; a detection unit having a first detection unit that detects visible light emitted from the first light source unit and irradiated to the object; detecting that it is emitted from the second light source unit and irradiated to the object A second detection unit for infrared light of the body, and a third detection unit for detecting fluorescence emitted from the object based on the ultraviolet light emitted from the third light source unit; the superiority and inferiority determining unit has a detection unit based on the first detection unit The first appropriateness determination unit that determines whether the transmittance or reflectance of the object is appropriate based on the detection result, the second appropriateness determination portion that determines whether the object is a foreign object based on the detection result of the second detection portion, and the The detection result of the third detection unit determines whether the object is A third suitability determination unit for bacteria production, which is based on at least one of the determination results of the first suitability determination unit, the second suitability determination unit, and the third suitability determination unit One determination result determines the pros and cons of the moving object; and the moving direction changing unit changes the moving direction of the object that is determined to be bad; the moving direction changing unit has: a fluid discharge device to move the object Body discharge fluid; and a discharge timing determination unit based on at least one of the determination result of the first suitability determination unit, the determination result of the second suitability determination unit, and the determination result of the third suitability determination unit One determination result determines the discharge timing of the fluid discharged from the fluid discharge device. For the object sorting device described in item 1 or 4 of the scope of patent application, the third detection unit detects the visible light emitted from the first light source unit and irradiated to the object, and the superiority or inferiority determining unit has a fourth appropriateness determination The fourth appropriateness determination portion determines whether the transmittance or reflectance of the object is appropriate based on the visible light detection result of the third detection portion.

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