JP6203611B2 - Application program for causing operation panel type information terminal to function as means for grain appearance inspection, and grain discrimination system combining imaging means and operation panel type information terminal - Google Patents

Description

The present invention provides an application program that allows an operation panel type information terminal capable of displaying a clear image and simplifying and facilitating operability as a grain appearance inspection means , and a combination of an imaging means and an operation panel type information terminal It was it relates to grain discrimination system.

  Regardless of the country of origin and production area, agricultural products, especially grain grains such as brown rice grains and wheat grains, are inspected by the national government (Ministry of Agriculture, Forestry and Fisheries) in order to conduct fair and smooth transactions with producers. Based on the above, each quality is rated as 1st grade, 2nd grade, etc.

  Such a rating is executed based on various factors, one of which is a rating by visual inspection.

  Ratings based on visual inspection are broadly divided into numerical standards (colored grains, broken grains, damaged grains, etc.) and standards that cannot be expressed numerically (referred to as traits, grains There are two types, such as fullness and gloss.

  There is a limit standard product created by the government for grains that have standards defined by numerical values at present, and standard products are created for standards that cannot be expressed numerically. Both of these are based on real grain.

  As for standard products, the national government has created the actual products and distributed them to the regional agricultural administration offices and registered inspection organizations that are 8 blocks nationwide. In reality, it is not sufficient in terms of reliability of appearance inspection because color change and quality deterioration occur.

  Recently, due to the lack of personnel due to administrative reforms and other reasons, it has become difficult to create a national standard product, so the country plans to distribute a photo of the standard product.

  However, there are problems such as variations in ink due to printers when printing photographs, variations due to models when actually printing, and it is difficult to create equivalent ones.

  In Patent Document 1, an illuminating unit that illuminates rice grains, an imaging unit that captures the rice grains illuminated by the illuminating unit with an imaging camera and obtains an analog image signal, and binarizing the obtained analog image signal. Image conversion means for converting into a digital signal representing light and shade, image processing of the digital image signal obtained by the image conversion means, a density distribution histogram relating to density is created, and rice grains and adhered wrinkles are produced based on this A rice grain appearance inspection apparatus for binarization discrimination has been proposed.

  In Patent Document 2, a plurality of grains are imaged in a method for calculating a weight ratio according to grade in a grain appearance quality discriminating apparatus that images the grain by an imaging means and discriminates the quality of the grain based on the imaging data. And determining the quality of the plurality of grains based on the imaging data, totaling the number of pixels in the imaging data of the plurality of grains whose quality has been determined by the quality, and the number of pixels totaled by the quality Is multiplied by a weight conversion coefficient per pixel that is set in advance for each grade, and the number of pixels is converted to a weight for each grade, and a weight ratio for each grain is calculated based on the weight for each grade. Technology has been proposed.

  However, including these Patent Documents 1 and 2, there is no application program that allows an operation panel type information terminal that can display a clear image and is simple and easy to operate as a grain appearance inspection means. Is the current situation.

JP-A-2005-43260 JP 2011-242284 A

  The problem to be solved by the present invention is that an application program capable of causing an operation panel type information terminal capable of clear image display, simple operability and easy operation to function as a grain appearance inspection means has been conventionally used. It is a point that does not exist.

The present invention is an application program that allows the operation panel type information terminal to function as a grain appearance inspection means using the computer function of the operation panel type information terminal, and is installed in the operation panel type information terminal. Reads out the initial screen image data for selecting reference and standard products, displays it as an initial screen on the operation panel type operation display unit, and displays various image data of limit reference products and standard products selected on the initial screen Read from the storage unit and display it on the operation panel type operation display unit as various images of the limit reference product and standard product, and the limit reference product among the limit reference product and standard product images displayed on the operation panel type operation display unit When a product image is selected, the image data of a number of limit reference products (damaged grains, torn grains, partially colored grains, etc.) defined by the standard is read from the terminal storage unit When a process for displaying these images on the operation panel type operation display unit and a specific limit standard product image selected from among a number of limit standard product images displayed on the operation panel type operation display unit, Processing for displaying the image data of the corresponding limit reference product from the terminal storage unit, displaying the image on the operation panel type operation display unit together with the icon for sizing display, and storing the terminal when the sizing icon is pressed Read out the sizing image data that is the limit reference product from the control unit, display the image on the operation panel type operation display unit, and the limit reference product displayed on the operation panel type operation display unit and various images of standard products When a standard product is selected, a plurality of image data of the standard product divided into a plurality of blocks nationwide are read from the terminal storage unit, and each image is displayed on the operation panel type operation display unit. Processing that reads out the image data from the terminal storage unit and displays the image on the operation panel type operation display unit when one of a plurality of standard images displayed on the panel type operation display unit is selected And a process for changing the background color to the same color as the synthetic resin dish used when performing agricultural product inspection when one of the limit reference products displayed on the operation panel type operation display unit is displayed. The most important feature is that the computer is executable.

According to the first aspect of the invention, the limit reference product for grain appearance inspection, various images related to the standard product can be clearly visually recognized by sequentially performing the tap operation on the operation panel type operation display unit, Appearance inspection of grain such as brown rice to be inspected can be performed accurately, and the background color of the grain image can be changed and enlarged, and the stereoscopic image can be rotated. An application program that allows an operation panel type information terminal that can improve the inspection technology of an inspector and improve the workability, accuracy, and reliability of appearance inspection to function as a means for grain appearance inspection Can be realized and provided.

According to the second aspect of the present invention, imaging is performed by combining an imaging means having an upper imaging / illuminating unit having an imaging unit, a lower lighting unit, and an operation panel type information terminal to form a grain discrimination system. An imaging means capable of detecting the white immature grains with high efficiency by reducing the time required for arranging the grains to be measured on the perforated tray by using the means as the transmitted light mode, reducing the time for the measurement preparation stage, and A grain discrimination system combining an operation panel type information terminal can be realized and provided.
According to the third aspect of the present invention, imaging is performed by combining an imaging means having an upper imaging / illuminating unit having an imaging unit, a lower lighting unit, and an operation panel type information terminal to form a grain discrimination system. means the transmitted light mode, eliminates the need for troublesome to arrange the measured grains perforated trays, measured preliminary it is possible to shorten the time, also the high efficiency for coloring particle IMAGING that can be detected The grain discriminating system combining the means and the operation panel type information terminal can be realized and provided.

FIG. 1 is a block diagram showing a configuration of an operation panel type information terminal equipped with an application program according to Embodiment 1 of the present invention. FIG. 2 is a schematic plan view of an operation panel type information terminal equipped with an application program according to the first embodiment. FIG. 3 is a flowchart illustrating the processing contents of the application program according to the first embodiment. FIG. 4 is a diagram illustrating a start screen of the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 5 is a diagram illustrating a selection screen for a limit reference product and a standard product in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 6 is a diagram illustrating an image of a limit reference product (damaged grain, split body grain, partially colored grain, etc.) defined by the standard in the image display for grain appearance inspection based on the application program according to the first embodiment. is there. FIG. 7 is a diagram showing an image (stereoscopic image) of partially colored grains, which is a limit reference product in the image display for grain appearance inspection based on the application program according to the first embodiment, and character information indicating a predetermined standard. It is. FIG. 8 is a diagram showing a screen in a state where the background color of the partially colored grain image shown in FIG. 7 is changed. FIG. 9 is a diagram illustrating a sized image (stereoscopic image) that is a limit reference product in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 10 is an explanatory diagram showing a sized image (stereoscopic image) in the image display for grain appearance inspection based on the application program according to the first embodiment and an enlarged image thereof. FIG. 11 is a diagram illustrating images of standard products divided into a plurality of blocks nationwide in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 12 is a diagram illustrating an image of a full-size standard product placed on a tray in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 13 is a diagram illustrating an image of wheat grains in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 14 is a diagram showing an enlarged image of the image shown in FIG. FIG. 15 is a diagram illustrating an image of soybean grains placed on the tray in the image display for grain appearance inspection based on the application program according to the first embodiment. FIG. 16 is a diagram showing an enlarged image of the image shown in FIG. FIG. 17 is a block diagram showing a configuration of a grain discrimination system that combines an imaging means and an operation panel type information terminal according to Embodiment 2 of the present invention. FIG. 18 is a block diagram illustrating the function of the data processing unit in the grain discrimination system that combines the imaging unit and the operation panel type information terminal according to the second embodiment. FIG. 19 is a schematic diagram of an image pickup unit according to the second embodiment. FIG. 20 is a schematic end view of the upper imaging / illuminating unit constituting the imaging means according to the second embodiment. FIG. 21 is a flowchart illustrating the processing contents of the application program according to the second embodiment. FIG. 20 is a diagram illustrating an initial screen of the grain discrimination process based on the application program according to the second embodiment. FIG. 23 is a diagram illustrating an example of a result screen of the grain discrimination process based on the application program according to the second embodiment. FIG. 24 is a diagram illustrating an example of a torn grain image in a grain discrimination system in which an imaging unit and an operation panel type information terminal according to the second embodiment are combined. FIG. 25 is a schematic explanatory view showing the density state of the body split grain image corresponding to the body split grain (no crack). FIG. 26 is a schematic explanatory diagram showing the density state of the body split grain image corresponding to the body split grain (with cracks). FIG. 27 is a block diagram showing a configuration of a grain discrimination system that combines an imaging means and an operation panel type information terminal according to Embodiment 3 of the present invention. FIG. 28 is a schematic diagram of the imaging means according to the third embodiment. FIG. 29 is a schematic end view of the upper image pickup unit constituting the image pickup unit according to the third embodiment. FIG. 30 is a schematic explanatory diagram showing images obtained as a result of imaging of white heart grains using transmitted light (entire surface) and imaging of white heart grains using transmitted light (spots) in addition to imaging of white heart grains using reflected light. It is. FIG. 31 is an image “reflected light image (front)” from the upper imaging unit by the reflected light of the grains having the colored surface on the front, and “reflected light” imaged from the upper imaging unit by the reflected light of the grains having the colored surface on the back. "Image by back (back)", Image taken from the upper imaging unit by transmitted light (entire surface) of grains with colored surface on the back "Transmitted light (entire image) by back light", transmitted light of particles with colored surface on the back It is a schematic explanatory drawing which shows each image of the result of having imaged "image back by transmitted light (spot)" from the upper imaging unit by (spot) .

The present invention is a grain discrimination that combines an operation panel type information terminal and an imaging means that allows an operation panel type information terminal to function as a grain appearance inspection means, which can display a clear image and is simple and easy to operate. The purpose of realizing and providing a system includes an upper imaging / illumination unit, a lower illumination unit, and a tray on which an arbitrary number of grains to be discriminated are placed, Light is emitted from the upper light emitting unit of the upper imaging / illuminating unit having an image sensor to an arbitrary number of arranged grains, and the reflected light is imaged by the upper imaging / illuminating unit, or the arbitrary number of grains Imaging means for irradiating light from the lower light emitting part of the lower illumination unit and imaging the transmitted light by the upper imaging / illuminating unit to obtain image data by reflected light or transmitted light; A program memory storing an application program for grain discrimination, and an image data of an arbitrary number of grains to be discriminated taken by the imaging means, and stored, and a limit reference product for grain appearance inspection, a standard product A terminal storage unit for storing various image data, an operation panel type operation display unit, an image data of an arbitrary number of grains stored in the terminal storage unit based on the application program, and a limit standard for grain inspection Various image data related to products and standard products, to determine the grain quality of the image data of the arbitrary number of grains taken and to obtain a discrimination result, and according to the operation on the operation panel type operation display unit, this operation panel And an operation panel type information terminal provided with a control means for displaying the determination result on the expression operation display unit. Furthermore, in order to detect white immature grains, in addition to imaging of white grains using reflected light, the lower light emitting section is lit in a different pattern, and white heart grains are captured using transmitted light over the entire surface of the lower light emitting section, and lower emission is performed. This is realized by a configuration in which the heart white grain is imaged twice by the transmitted light of the spot of the part .

  Hereinafter, an application program and a storage medium that allow a touch panel type information terminal, which is an example of an operation panel type information terminal according to an embodiment of the present invention, to function as a grain appearance inspection unit, and an imaging unit and an operation panel type information terminal. The combined grain discrimination system, the application program of the grain discrimination system, and the storage medium will be described in detail.

Example 1
With reference to FIG. 1 thru | or FIG. 3, the application program which concerns on the present Example 1, and the touch panel type operation panel information terminal 1 which mounted this application program are demonstrated.

  First, the touch panel type information terminal 1 which is an example of the operation panel type information terminal will be outlined with reference to FIGS. 1 to 3. As the touch panel type information terminal 1, for example, iPad (registered trademark) or the like is used.

  As is well known, the touch panel type information terminal 1 includes, for example, a thin rectangular parallelepiped terminal body 2 and an inspector who performs a grain appearance inspection, for example, arranged on the surface portion of the terminal body 2 with a finger or the like. And a touch panel type operation display unit 3 which is an operation panel type operation display unit for displaying various images, character information, and the like.

  As shown in FIG. 1, the terminal body 2 executes a control program for executing overall control and a program memory 4 that stores an application program to be described later in detail, and executes overall control. A control unit 10 and a terminal storage unit that stores, for example, a marginal standard product for the appearance inspection of brown rice grains created by the country, various image data corresponding to the standard product, character information based on the standard, various icons for screen operation guidance, and the like 5, a camera 6 for capturing an image of a grain previously mounted on the terminal body 2, a camera image processing unit 11 previously mounted on the terminal body 2, and a terminal body 2 previously mounted An e-mail processing unit 7, and a communication processing unit 8 for transmitting / receiving data to / from a computer such as an inspection head office to which an inspector belongs, for example, via the Internet network N previously installed in the terminal body 2; A storage medium interface 9 for data write to data read or the external storage medium 12 from the parts storage medium 12, a has as main components.

  The application program according to the first embodiment is mounted on the touch panel type information terminal 1 which is an example of the operation panel type information terminal, the details of which will be described later, and the terminal storage unit according to a tap operation on the touch panel type operation display unit 3. 5 is configured to execute processing for reading out the limit reference product for grain appearance inspection stored in 5, various image data related to the standard product, display processing on the touch panel type operation display unit 3, and the like.

  The application program according to the first embodiment has functions such as an enlargement / reduction process of an image displayed on the touch panel type operation display unit 3 and a rotation process of a stereoscopic image in response to a finger operation on the touch panel type operation display unit 3. Also have.

  Next, FIG. 3, FIG. 4 thru | or FIG. 4 about a series of processes which make the touch panel type information terminal 1 which is an example of the operation panel type information terminal carrying the application program which concerns on the present Example 1 function as a grain appearance test | inspection means. This will be described with reference to FIG.

  FIG. 3 is a flowchart showing the processing contents of the application program according to the first embodiment, and FIG. 4 is a start screen for grain appearance inspection displayed on the touch panel type operation display unit 3 based on the application program.

  When the inspector presses (tap) an icon (image icon) on the start screen shown in FIG. 4, various images of limit reference products and standard products as shown in FIG. 5 are read from the terminal storage unit 5 based on the application program. And displayed on the touch panel type operation display unit 3.

  When the inspector selects (tap) the limit reference product among the various images of the limit reference product and the standard product shown in FIG. 5, the terminal storage unit 5 defines the clear standard as shown in FIG. 6 based on the application program. Various images of the limit reference products (damaged grains, torn body grains, partially colored grains, etc.) are read out and displayed on the touch panel type operation display unit 3.

  When an inspector selects (tap) an image of a partially colored grain that is one of the limit reference products from the images of a large number of limit reference products shown in FIG. An image of a partially colored particle (stereoscopic image), which is a limit reference product as shown, and character information indicating a standard defined for the partially colored particle are read and displayed on the touch panel operation display unit 3.

  At this time, based on the application program, for example, five types of icons for changing the background color of the image are displayed on the lower right side of the touch panel type operation display unit 3, and the sizing is performed on the lower left side of the touch panel type operation display unit 3. For example, three types of icons for partial coloring grain selection are displayed simultaneously.

  When the inspector presses (tap) the background color change icon (blue) in the lower right on the screen shown in FIG. 7, the background color of the partially colored grain image shown in FIG. 7 is shown in FIG. 8 based on the application program. Changes to blue.

  This is to cope with the inspection by placing grains on a synthetic resin dish called a carton when inspecting agricultural products.

  In addition, since there are various colors in the carton, in this embodiment, the color can be changed to, for example, five types as shown on the right side of the lower column of FIG. 7 based on the application program.

  On the other hand, when the inspector presses (tap) the sizing icon on the left side of the lower column of the touch panel type operation display unit 3 on the screen shown in FIG. 7, what is shown in FIG. 9 from the terminal storage unit 5 based on the application program. A sized image (stereoscopic image), which is a limit reference product that is not damaged by the above, is read and displayed on the touch panel operation display unit 3.

  The sized image (stereoscopic image) can be visually recognized by rotating the image as it is three-dimensionally by inspecting the finger on the screen of the touch panel type operation display unit 3 and gently moving the finger based on the application program. This makes it possible to clearly grasp the characteristics of the displayed sized shape.

  Furthermore, in the first embodiment, the screen of the touch panel type operation display unit 3 is displayed in the form shown in the upper column of FIG. 10 based on the application program based on the sized image (stereoscopic image) as shown in FIG. The size-adjusted image can be enlarged as shown in the lower column of FIG. 10 by a finger pinch operation by an inspector. Is structured so that it can be clearly understood.

  Further, when the inspector selects a standard product among the various images of the limit standard product and the standard product shown in FIG. 5, the terminal storage unit 5 is divided into a plurality of blocks nationwide as shown in FIG. 11 based on the application program. The image of the standard product thus obtained is read out by grade and displayed on the screen of the touch panel type operation display unit 3.

  FIG. 11 shows an example in which four images of two kinds of Kirara from Hokkaido and two kinds of Hitomebo from Miyagi are displayed on the screen of the touch panel type operation display unit 3.

  Then, when one of the images shown in FIG. 11 (for example, rice paddy rice cake, Hokkaido Kirara) is selected (tapped), the application program is placed on the tray as shown in FIG. 12 based on the application program. The image is full size and is displayed on the screen of the touch panel type operation display unit 3.

  Such an image can also be enlarged or reduced by a pinch operation of the inspector's two fingers.

  FIG. 13 shows an example in which an image of one wheat grain is read from the terminal storage unit 5 based on the application program and displayed on the screen of the touch panel type operation display unit 3, and FIG. 13 shows an example in which the image shown in FIG. 13 is enlarged and displayed on the screen of the touch panel type operation display unit 3.

  FIG. 15 shows an example in which images of a large number of soybean grains placed on a tray are read from the terminal storage unit 5 based on the application program and displayed on the screen of the touch panel type operation display unit 3, and FIG. 15 shows an example in which the image shown in FIG. 15 is enlarged and displayed on the screen of the touch panel type operation display unit 3 by operation.

  According to the application program and the application program according to the first embodiment described above, the following actions and effects can be exhibited, and the touch panel type information terminal 1 functions effectively as a grain appearance inspection means. It becomes possible to make it.

  That is, by using the touch panel type information terminal 1 equipped with the application program having the functions as described above, the inspector can use the limit reference product for grain appearance inspection stored in the touch panel type information terminal 1 in advance, the standard By simply performing various tap images on the touch panel operation display unit 3 in order, various images relating to the product can be clearly recognized, and the appearance inspection of the grain such as brown rice to be inspected can be performed accurately.

  More specifically, it is possible to easily visually recognize and confirm what has been seen in the grain in the past on the screen of the touch panel type information terminal 1 at any time.

  Since the standard products, etc., which are actual products are agricultural products, they always deteriorate over time and change in color. Therefore, the accuracy and reliability of the appearance inspection are insufficient. For example, such inadequacies can be resolved, and the same grain image can be displayed regardless of the operation of any inspector, so it is also possible to improve the inspection technology of inspectors who have been dispersed until now. It becomes.

  Moreover, when actually inspecting the appearance of the grain, the grain is often put in a dish called a carton to confirm the appearance, but by using the touch panel type information terminal 1 equipped with the application program described above, The background color of the grain image can be changed only by a tap operation. This makes it easy to determine the appearance of the grain such as brown rice to be inspected, and improves work efficiency.

  Furthermore, since the image can be enlarged or the three-dimensional grain image of the limit reference product can be rotated and displayed by operating the screen, the back side and shape of the grain can be checked very easily, and inspection can be performed. The accuracy of appearance discrimination of grains such as brown rice should be expected.

  Considering the correspondence in each grain production region in Japan, the standard product made by the country is made using only limited varieties that are available in that region. It is difficult to make a standard product of a variety, and in that case, a standard sample of many varieties that are actually available may be prepared in each region with reference to a national standard product.

  Up to now, it has been necessary to create the actual samples, but standard samples of many types are created one by one, and each image sample is applied to the touch panel type information terminal 1 using the application program according to the first embodiment. Incorporated in a large number makes it possible for many inspectors to share a unified image sample, greatly improving the accuracy and reliability of visual inspections for limited product types in each production area. It is possible to contribute.

  Using the application program according to the first embodiment and the touch panel type information terminal 1 which is an example of an operation panel type information terminal equipped with the application program, for example, by performing an appearance inspection such as brown rice grains, it is impossible in the past. There is a possibility of grading by the image, and several new agricultural product inspection models can be considered.

  For example, in the past, agricultural products inspections were graded by inspectors with specialized qualifications at the inspection locations (approximately 10,000 locations nationwide), but the inspection targets are agricultural products such as brown rice grains. With regard to (whether it is 1st, 2nd, 3rd, etc.), it is often the case that the sample is brought back to the office etc. and asked to judge by another inspector or appropriate technical instructor.

  Even in such a case, according to the first embodiment, the touch panel type information terminal 1 which is an example of the operation panel type information terminal is used, an image of a questionable item or the like is captured by the camera 6, and an e-mail processing unit 7 such as creating an e-mail and sending / receiving data to / from a computer such as the inspection headquarters to which the inspector belongs via the communication processing unit 8 and the Internet N It is also possible to realize a simple inspection process.

  The application program according to the first embodiment is stored in an external storage medium 12 such as an SD (Secure Digital) memory card, for example, and the terminal body 2 is described above based on the application program using the storage medium interface 9. By operating in the same manner as in the case, the widely used touch panel information terminal 1 can be made to function as a grain appearance inspection means, and the application program according to the first embodiment is used for many inspectors. It is also possible to use it effectively.

  Thus, according to the application program which concerns on the present Example 1, and the touchscreen type information terminal 1 carrying this application program, accuracy and reliability, such as a grain appearance inspection and a grade inspection, are ensured, and grain transaction It is possible to achieve fairness.

(Example 2)
Referring to FIGS. 17 to 23, the grain discrimination system 61 that combines the imaging means 21 and the operation panel type information terminal 1A according to the second embodiment of the present invention, the application program of the grain discrimination system 61, and the storage medium will be described. explain.

  In the second embodiment, the same elements as those in the first embodiment are denoted by the same reference numerals.

  First, with reference to FIG. 17 thru | or FIG. 20, the grain discrimination system 61 which combined the imaging means 21 and the operation panel type information terminal 1A which concern on the present Example 2 is explained in full detail.

  As shown in FIGS. 17 and 19, the imaging unit 21 according to the second embodiment includes an upper imaging / illumination unit 22, a lower illumination unit 23, and a tray 24 on which an arbitrary number of grains to be discriminated are placed. It is equipped with.

  The upper imaging / illumination unit 22 includes a power supply unit 25, a unit control unit 26 configured by a CPU or DSP (Digital Signal Processor) that performs control of the entire upper imaging / illumination unit 22, and a unit control unit 26. The work memory 27 to be controlled includes, for example, a communication interface 28 that transmits the appearance image data of the grain to the outside wirelessly or by wire, a temperature sensor 29 that detects the ambient temperature, and a lighting controller 30.

  And the upper light emission part 31 which comprises the reflected image light source using the LED (Light Emitting Diode) element 31A which light-emits white light, for example is connected to the said illumination controller 30, and it illuminates toward the tray 24 from the upper light emission part 31 It is configured to emit light.

  The upper imaging / illuminating unit 22 has an imaging optical system 32 that faces an arbitrary number of grains on the tray 24, an image sensor that captures grains and generates appearance image data (color image data). A color image sensor) 33, and a data processing unit 34 that captures image data transmitted from the image sensor 33 under the control of the unit control unit 26 and stores it in the image memory 35. The optical system 32 and the image sensor 33 constitute an imaging unit.

  The data processing unit 34 is configured by, for example, a field programmable gate array (FPGA), which is a kind of semiconductor device that can be programmed by the user.

  As shown in FIG. 18, the data processing unit 34 performs various controls such as reading image data from the image sensor 33, storing the image data in the image memory 35, and transmitting the image data to the communication interface 28. Thus, the program data programmed by the user is stored in the IC chip.

  As shown in FIG. 17, the lower illumination unit 23 includes a lower illumination unit control unit 37 configured by a power source 36, for example, a CPU, and the lower illumination unit control unit 37 performs illumination from the upper light emitting unit 31. The operation of the light quantity sensor 38 for detecting light, the temperature sensor 39 for detecting the ambient temperature, and the vibration sensor 40 for detecting the movement of the grain on the tray 24 are each controlled.

  Note that the lower illumination unit controller 37 may be eliminated, and the unit controller 26 may control each element of the lower illumination unit 23.

  Further, the lower illumination unit controller 37 constitutes a lower emission that constitutes a transmission image light source comprising an LCD or the like that irradiates the grain with illumination light from the lower side of the tray 24 via the imaging illumination controller 41. Unit (for example, 10.4 inch LCD with backlight) 43 is configured to control light emission. The lower light emitting unit 43 is a transmitted light type and is formed of a light emitter having a plurality of light emitting points that can arbitrarily control the intensity of light.

  In this case, the imaging illumination controller 41 may include an image interface for an LCD (Liquid Crystal Display) having an LVDS (Low Voltage Differential Signaling) conversion function.

  Next, a touch panel type information terminal 1A which is an example of an operation panel type information terminal will be described with reference to FIG.

  As in the case of the first embodiment, the touch panel type information terminal 1A is, for example, a thin rectangular parallelepiped terminal body 2A, and an operator who performs, for example, grain discrimination placed on the surface portion of the terminal body 2A performs a tap operation with a finger or the like. And a touch panel type operation display unit 3 for displaying various images, character information, and the like.

  Further, as shown in FIG. 17, the terminal main body 2A executes a control program for executing the overall control and a program memory 4 storing an application program to be described later in detail, and an overall control. Control unit 10 that stores, for example, the limit standard product for inspection of brown rice grains, etc. created by the country, various image data corresponding to the standard product, character information based on the standard, various icons for guiding the screen operation, judgment item information, etc. In addition, the terminal storage unit 5 that stores the captured image data and further the determination result information, the image processing unit 11A that performs image processing of the captured image data, and the e-mail processing that is previously installed in the terminal body 2 For example, the communication between the unit 7 and a computer such as an inspection headquarters to which an inspector belongs is transmitted and received via the Internet network N previously installed in the terminal body 2. Wirelessly or between the processing unit 8, the storage medium interface 9 for reading data from or writing data to the external storage medium 12, and the communication interface 28 in the upper imaging / illumination unit 22 A communication interface 13 that communicates by wire is provided as a main element.

  As described above, the terminal main body 2A basically includes the same components as those in the first embodiment. However, a control program for executing overall control on the program memory 4 and details will be described later. The application program is stored, and the terminal storage unit 5 includes, for example, a limit reference product for brown rice grain inspection, various image data corresponding to the standard product, character information based on the standard, various icons for guiding screen operations, etc. The reference image information is stored, and the terminal storage unit 5 stores determination item information related to brown rice grains, for example.

  Other configurations are the same as those in the first embodiment.

  The imaging means 21 and the touch panel type information terminal 1A can transmit image data by a cable connection method, a method using a memory card, or the like in addition to a wireless or wired communication method.

  The application program according to the second embodiment is installed in the touch panel type information terminal 1A and stores in the terminal storage unit 5 image data of grains composed of an arbitrary number of brown rice grains and the like imaged by the imaging unit 21; The limit reference product for the image data of the arbitrary number of grains, performing grain quality determination calculation based on various image data related to the standard product, each determining the grain quality of the image data of the arbitrary number of captured grains, Further, a process for obtaining a determination result associated with the determination item information, a process for storing the determination result in the terminal storage unit 5, and a touch operation on the touch panel type operation display unit 3 with the determination result stored in the terminal storage unit 5 And a process of displaying on the touch panel type operation display unit 3 according to the above.

  The determination item information by the application program according to the second embodiment includes, for example, sizing (with or without skin displacement), immature grains (milk white, base immature, blue immature, heart white, belly white, other immature, etc. for brown rice grains ), Dead rice (white dead rice / blue dead rice), colored grains (full-colored / partially colored / red rice), damaged grains (germination, sprouting, torso, kimono, insect damage, disease, crushed grains, brown rice) ) And the like.

  In addition, for polished rice grains, normal grains (no germs, germ traces, germ smoothness, germ form), powdered grains (whole powder, half powder, heart white, belly white), damaged grains (damage, shape, Other examples include damage and crushed grains, colored grains (overall coloring, stink bug coloring, nematode coloring, lesion coloring), and different types of grains.

  Furthermore, as the discrimination result information by the application program according to the second embodiment, the thumbnail image with the discrimination item for each discriminating grain, the number of grains and the composition ratio (grain number%, mass conversion%) for each discriminating grain, grain shape An example of an analysis histogram can be given.

  Next, with reference to FIG. 19 and FIG. 20, a substantial configuration of each element of the upper imaging / illumination unit 22 and the lower illumination unit 23 will be outlined.

  The upper imaging / illuminating unit 22 includes a box-shaped upper casing 51, and the above-described elements are mounted on each part of the upper casing 51.

  In FIG. 19, a power supply unit 25, a data processing unit 34, an image sensor 33, and a lens 32A constituting an optical system 32 directed toward the lower illumination unit 23, which are a part of the upper imaging / illumination unit 22, are provided. The LED element 31 </ b> A is used to arrange an upper light emitting unit 31 facing the lower illumination unit 23, and a constant voltage circuit 44 that applies a predetermined voltage to the upper light emitting unit 31.

  Further, the lower illumination unit 23 is configured as a transmitted light type and includes a box-shaped lower casing 62. As shown in FIG. 19, the lower light emitting section 31 and the optical system 32 are provided in the lower casing 62. The lower light emitting portion 43 is disposed so as to face the lens 32A constituting the above structure, the tray 24 is placed on the lower light emitting portion 43, and the power source portion 36 is disposed in the lower casing 62. , A configuration in which a lower illumination unit control unit 37 and an imaging illumination controller 41 are arranged is shown.

  The lower illumination unit 23 is, for example, an illuminant that includes a backlight, an LCD, an OLED (organic EL display), or the like, and has a plurality of light emitting points that can arbitrarily control the intensity of light.

  When the lower illumination unit 23 is used, measurement with transmitted light is possible without using a perforated tray, so that it is not necessary to arrange the particles to be measured on the perforated tray, and the time required for measurement preparation is reduced. There are advantages to being.

  FIG. 24 shows an example of a torn grain image captured by the image sensor 33 using the lower illumination unit 23.

  Here, a supplementary explanation will be given regarding the presence / absence of the body split of the grain and the shade of the image.

  When light is applied to a part of the sample to be measured, the portion that is exposed to the light becomes brightest, and as it gets farther from the light source, it scatters and reaches the inside of the sample and becomes darker.

  When the measurement target is a grain, the change in the brightness of the grain image looks smooth as shown in FIG.

  On the other hand, in the case of a grain having a crack due to a torso, light is strongly scattered at the crack portion, so that a rapid change in brightness is observed before and after the crack as shown in FIG.

  In the second embodiment, as is clear from FIG. 24, on the light emitting point on the LCD having the backlight of the lower illumination unit 23, for example, the image is bright and dark due to the middle split of the split grain. found.

  On the other hand, in the case of the lower illumination unit used in the conventional grain discriminator, since the emission point of the transmitted light is determined, the illumination direction is constant with respect to the axis of the grain to be inspected, for example, when discriminating torn grains Had to keep on.

  In addition, in the conventional transport disk type grain discriminator, since the measurement is performed for each grain, the time for physical movement of the grain is limited in addition to the image processing time. There is an inconvenience that a plurality of measurement systems are necessary, for example, it is necessary to distinguish between split grains and heart white grains using different light sources.

  Furthermore, in the case of a grain discriminator using an image scanner, there is an inconvenience that it is indispensable to place it on a tray with a grain hole.

  FIG. 20 shows a schematic cross section of the upper imaging / illumination unit 22. A main board 52 is horizontally arranged in the upper housing 51, and the image sensor 33 is placed by the image sensor board 53 at the center of the main board 52. Further, the lens 32A is supported by a lens barrel 54 attached to the lower portion thereof, and a polarizing plate 55 is attached to a lower end portion of the lens barrel 54.

  A heat radiating plate 56 is attached around the lens barrel 54 to support the LED element 31A, and a diffusion plate 57 and a dustproof plate are provided on the lower end surface of the upper housing 51 located below the LED element 31A. 58 is attached.

  Next, the grain discrimination process by the grain discrimination system 61 combining the imaging means 21 and the operation panel type information terminal 1A according to the second embodiment of the present invention will be described.

  The following example can be given as an overall flow of the imaging process of the grain on the tray 24 by the imaging means 21 in the grain discrimination system 61 and the image processing by the operation panel type information terminal 1A.

(A) After turning on the upper light emitting unit 31 of the imaging means 21, an image of a grain is captured by the image sensor 33 with reflected light to obtain image data. And the position of a grain is detected by the image process in 1 A of operation panel type information terminals, and the light emission shape of the lower light emission part 43 which is a transmission light source is calculated. In addition, detection other than torso cracking is performed by image processing in the operation panel type information terminal 1A.

(B) After the lower light emitting unit 43 is turned on, an image of a grain is captured by the image sensor 33 with transmitted light to obtain image data. Then, crack detection is performed by image processing in the operation panel type information terminal 1A.

(C) Depending on the result of the above processing, as shown in FIG. 30, the lower light emitting unit 43 is turned on with a different pattern to detect white immature grains, and the second imaging with transmitted light is performed. That is, as shown in FIG. 30, in addition to the imaging of cardiac white grains by reflected light, imaging of cardiac white grains by transmitted light (entire surface) and imaging of cardiac white grains by transmitted light (spots) are performed.

Some (D) measurement items, the lower light emitting unit 43 for coloring grains of the back surface of the detection in the far surface from the image sensor 33 illuminates another pattern, performs by that an imaging the transmitted light. That is, as shown in FIG. 31, in addition to by that an imaging the reflected light, by that an imaging the transmitted light (the entire surface) (back), and by that an imaging transmitted light (spot).

(E) With the illumination method as described above, it is possible to measure the state of the inside / back side of the sample that cannot be seen from the image sensor 33 in the conventional reflected light image, and the image sensor 33 is not disposed above and below the sample. There is an advantage that it may be.

  Next, a series of processes of the touch panel information terminal 1A equipped with the application program according to the second embodiment will be outlined with reference to FIGS.

  FIG. 21 is a flowchart showing the processing contents of the application program according to the second embodiment, and FIG. 22 is an initial screen for grain discrimination displayed on the touch panel type operation display unit 3 based on the application program. .

  First, in the initial screen shown in FIG. 22, for example, brown rice measurement is selected (tapped), and the application program is started.

  Next, images of a large number of brown rice grains arranged and arranged on the tray 24 are captured by the imaging means 21, and the image data is transmitted to the touch panel type information terminal 1A as described above.

  Image data of a large number of brown rice grains imaged by the imaging means 21 is subjected to image processing by the image processing unit 11A based on the application program and then stored in the terminal storage unit 5.

Next, based on the application program, the grain size determination calculation is performed based on the image data of the limit reference product and the standard product with respect to the image data of the arbitrary number of kernels, and an image of the arbitrary number of kernels captured The grain quality of the data is discriminated, and the discrimination result associated with the judgment item information is obtained for each individual brown rice grain.
Further, the determination result is stored in the terminal storage unit 5 based on the application program.

  Then, by the tap operation for displaying the result on the touch panel type information terminal 1A by the operator, the application program, for example, for each brown rice grain such as sized grains, partial colored grains, etc., which are discriminated as shown in FIG. Several thumbnail images with discrimination items are displayed on the touch panel type operation display unit 3. In addition, in FIG. 23, the discrimination | determination result regarding eight brown rice grains is displayed as an example.

  In addition, although not shown, the number of grains, the composition ratio (number of grains,% by mass) and a histogram are calculated and displayed on the touch panel type operation display unit 3 by the application program, or displayed by the application program. , Enlargement / reduction processing of the captured image, rotation processing in the case of a stereoscopic image, rearrangement display for each grain quality, grain quality, typicality, grain length, grain width, projection for each grain An area or the like can be calculated and displayed on the touch panel type operation display unit 3.

  According to the grain discrimination system 61 that combines the imaging means 21 and the operation panel type information terminal 1A according to the second embodiment, the imaging means 21 captures an image of a grain composed of brown rice grains, etc. Since it is transmitted to the operation panel type information terminal 1A, the image data of each grain is processed and the grain quality is determined and displayed on the touch panel type operation display unit 3, the imaging means 21. Using the operation panel type information terminal 1A based on the image data of the reflected light of each grain or the image data of the transmitted light, the various grain quality of these grains is accurately and widely determined, and the discrimination results are obtained. A simple grain discrimination system 61 that can be displayed and is easy to operate can be realized and provided.

  In addition, according to the grain discriminating system 61 according to the second embodiment, the brown rice grains and the like are captured by the imaging means 21 and stored in the terminal memory 5 of the touch panel type information terminal 1A, so that the brown rice grains and the like are stored. It is also possible to adopt a usage mode in which the imaging time and the grain quality determination time are shifted.

  In addition, according to the second embodiment, the touch panel type information terminal 1A is used, and the captured image of brown rice grains and the like is transmitted through the e-mail processing unit 7, the communication processing unit 8, and the Internet N in the case of the first example. In the same manner as described above, it is possible to realize a quick discrimination process such as seeking expert judgment by transmitting / receiving data to / from an external computer.

  Furthermore, by using the captured images of brown rice grains and the like for publicly known cloud management, it is possible to realize a usage mode in which the image data is shared by many people.

  As shown in FIG. 17, the application program according to the second embodiment is stored in an external storage medium 12 such as an SD card, and the terminal body 2A is stored on the basis of the application program using the storage medium interface 9. By operating in the same manner as described above, the general-purpose touch panel information terminal 1A can function as described above, and the application program according to the second embodiment can be effectively used for many operators. Is possible.

  In addition, imaging of heart white grains by transmitted light (entire surface) by emission of the lower light emitting unit 31 as shown in FIG. 30, imaging of heart white grains by transmitted light (spots), and transmitted light (as shown in FIG. Imaging of colored particles by the whole surface (back) and imaging of colored particles by the transmitted light (spot) (back) can be performed.

  With such an illumination method, it is possible to measure the state of the inside and the front side of the sample that cannot be seen from the image sensor 33 in the conventional reflected light image, and it is not necessary to arrange the image sensor 33 below the sample. There are advantages.

(Example 3)
A grain discriminating system 61A in which an image pickup means 21A and an operation panel type information terminal 1A according to Embodiment 3 of the present invention are combined will be described with reference to FIGS.

  The application program and the storage medium of the operation panel type information terminal 1A and the grain discrimination system 61A in the third embodiment are the same as those in the second embodiment described above.

  In the third embodiment, the same elements as those in the first and second embodiments are denoted by the same reference numerals.

  The imaging unit 21A according to the third embodiment is basically configured in the same manner as the imaging unit 21 according to the second embodiment, but the imaging unit 21A includes an upper imaging unit 71, a lower illumination unit 81, and the like. , And a tray 24 on which an arbitrary number of grains to be discriminated arranged between them is placed.

  The upper imaging unit 71 includes the illumination controller 30 and the upper light emitting unit in the upper casing 51 of the upper imaging / illuminating unit 22 according to the second embodiment described above in the upper casing 51A constituting the upper imaging unit 71. 31, the elements corresponding to the LED element 31A and the constant voltage circuit 44 are eliminated, and the imaging light of the grain is disposed in the lower position of the upper casing 51A so as to face the tray 24 in parallel from above the tray. A reflecting plate 72 provided with an imaging hole 73 that can pass toward the system 32 is provided.

  Other configurations of the upper imaging unit 71 are substantially the same as those of the upper imaging / illuminating unit 22 according to the second embodiment described above.

  The lower illumination unit 81 is a transmitted light type disposed in the lower housing 62A below the tray 24, and includes a lower light emitting unit 43 formed of a light emitter having a plurality of light emitting points capable of arbitrarily controlling the intensity of light. A plurality of LED elements (white LED elements) that are arranged on the upper surface side of the first light emitting unit 82 and the lower housing 62A and irradiate illumination light toward the reflecting plate 72 from below the reflecting plate 72. A second light emitting portion 84 made of 83.

  Further, the lower lighting unit 81 eliminates the element corresponding to the light amount sensor 38 in the lower lighting unit 23 according to the second embodiment described above in the lower housing 62A, and drives the plurality of LED elements 83 to light. A constant voltage circuit 85 is provided.

  Other configurations of the lower illumination unit 81 are substantially the same as those of the lower illumination unit 23 according to the second embodiment described above.

  In the image pickup unit 21A according to the third embodiment, although the specific configuration is omitted, the image data of the grain is picked up in two modes by mode switching between the transmitted light mode and the reflected light mode.

  Among these, in the transmitted light mode, the image data of the grain by the transmitted light that is emitted from the lower light emitting unit 43 constituting the first light emitting unit 82 and enters through the tray 24 and the grain is transmitted to the optical system 32 and the image sensor. Imaging is performed in the same manner as in the second embodiment by the imaging unit consisting of 34.

  The operation and effect of the imaging means 21A in this transmitted light mode are the same as in the second embodiment.

  On the other hand, in the reflected light mode, the image data of the grains on the tray 24 irradiated from the second light emitting unit 84 to the reflector 72 and illuminated by the reflected light is imaged by the optical system 32 and the image sensor 34. .

  In the case of the reflected light mode, the distance from the LED element 83 constituting the second light emitting unit 84 to the grain on the tray 24 is increased, that is, the optical path of the illumination light is increased. There is an advantage that the illumination light with respect to can be made uniform and high quality image data can be obtained.

  Further, since the reflected light (reflected diffused light) of the light emitted from the LED element 83 is used, the number of the LED elements 83 can be reduced, and at the same time, the configuration of the upper imaging unit 71 can be reduced in size and simplified. This can be realized and contributes to the reduction of the manufacturing cost of the imaging means 21A as a whole.

  In addition, although the distance from the LED element 83 which comprises the said 2nd light emission part 84 to the grain on the said tray 24 becomes large, the light quantity reduction of the illumination light with respect to a grain is caused, The LED element 83 is dealt with in a manner such as having a high rating.

  The operation and effect of the whole grain discrimination system 61A according to the third embodiment of the present invention is the case of the grain discrimination system 61 according to the above-described second embodiment except for the function and effect peculiar to the imaging means 21A described above. It is the same.

  In the first to third embodiments of the present invention described above, the case where the touch panel type information terminals 1 and 1A are used has been described. In addition, for example, a floating touch technology is mounted as an operation panel type information terminal. Non-contact operation type that can perform various screen operations without touching the screen directly (moving the screen without touching the panel by moving the finger near the panel) with the finger etc. floating from the operation panel screen Of course, a configuration using a smartphone “for example, Xperia sola” (Xperia is a registered trademark) or the like is also possible.

  In addition to the above-described case, the present invention can be widely applied for appearance inspection and grain discrimination of various grains such as milled rice, wheat and soybeans.

DESCRIPTION OF SYMBOLS 1 Touch panel type information terminal 1A Touch panel type information terminal 2 Terminal main body 2A Terminal main body 3 Touch panel type operation display part 4 Program memory 5 Terminal storage part 6 Camera 7 E-mail processing part 8 Communication processing part 9 Interface for storage medium 10 Control part 11 Camera Image processing unit 11A Image processing unit 12 External storage medium 13 Communication interface 21 Imaging unit 21A Imaging unit 21B Imaging unit 22 Upper imaging / illumination unit 23 Lower illumination unit 24 Tray 25 Power supply unit 26 Unit control unit 27 Work memory 28 Communication interface 29 Temperature Sensor 30 Lighting controller 31 Upper light emitting unit 31A LED element 32 Optical system 32A Lens 33 Image sensor 34 Data processing unit 35 Image memory 36 Power supply unit 37 Lower lighting unit control unit 3 Light sensor 39 Temperature sensor 40 Vibration sensor 41 Illumination controller 43 Lower light emitting unit 44 Constant voltage circuit 51 Upper housing 51A Upper housing 52 Main substrate 53 Image sensor substrate 54 Lens barrel 55 Polarizing plate 56 Heat sink 57 Diffusion plate 58 Dust proof plate 61 Grain discrimination system 61A Grain discrimination system 62 Lower housing 62A Lower housing 71 Upper imaging unit 72 Reflecting plate 73 Imaging hole 81 Lower illumination unit 82 First light emitting unit 83 LED element 84 Second light emitting unit 85 Constant voltage circuit N Internet network

Claims (3)

An application program that allows the operation panel type information terminal to function as a grain appearance inspection means using the computer function of the operation panel type information terminal,
Installed in the operation panel type information terminal,
Read out the image data of the initial screen for selecting the limit standard product / standard product and display it as the initial screen on the operation panel type operation display unit;
Processing to read various image data of the limit reference product and standard product selected on the initial screen from the terminal storage unit and display them on the operation panel type operation display unit as various images of the limit reference product and standard product,
Among various images of limit reference products and standard products displayed on the operation panel type operation display section, when the image of the limit reference product is selected, a large number of limit reference products (damaged grains, body split grains specified by the standard) , Partial colored grains, etc.) image data from the terminal storage unit, and displaying these images on the operation panel type operation display unit,
When an image of a specific limit reference product is selected from among a number of limit reference product images displayed on the operation panel type operation display unit, the corresponding limit reference product image data is read from the terminal storage unit, Processing to display an image on the operation panel type operation display unit together with an icon for sizing display;
When the sizing icon is pressed, processing to read the sizing image data that is the limit reference product from the terminal storage unit, and display the image on the operation panel type operation display unit,
When selecting a standard product from various images of the limit standard product and standard product displayed on the operation panel type operation display unit, multiple image data of the standard product divided into multiple blocks nationwide from the terminal storage unit Processing to read and display each image on the operation panel type operation display unit;
When one of a plurality of standard images displayed on the operation panel type operation display unit is selected, the image data is read from the terminal storage unit and the image is displayed on the operation panel type operation display unit. Processing,
When one of the limit reference products displayed on the operation panel type operation display unit is displayed, a process of changing the background color to the same color as the synthetic resin dish used when the agricultural product inspection is performed,
Is an application program that allows an operation panel type information terminal to function as a grain appearance inspection means. An upper imaging / illuminating unit, a lower lighting unit, and a tray for placing an arbitrary number of grains to be discriminated arranged between them, and for an arbitrary number of grains arranged in the tray Light is irradiated from the upper light emitting unit of the upper imaging / illuminating unit having an image sensor and the reflected light is imaged by the upper imaging / illuminating unit, or the lower light emitting unit of the lower lighting unit for the arbitrary number of grains An imaging means for irradiating light from and imaging the transmitted light with the upper imaging / illumination unit to obtain image data by reflected light or transmitted light;
A program memory storing an application program for discriminating grains, and capturing and storing image data of an arbitrary number of grains that are discrimination targets imaged by the imaging means, and a limit reference product for grain appearance inspection, standard Terminal storage unit for storing various image data related to products, operation panel type operation display unit, image data of an arbitrary number of grains stored in the terminal storage unit based on the application program, and limit for grain inspection Comparing various image data related to the reference product and the standard product, discriminating the grain quality of the image data of the arbitrary number of captured grains, obtaining the discrimination results, and performing this operation according to the operation on the operation panel type operation display unit Control means for displaying the determination result on the panel-type operation display unit, and an operation panel-type information terminal comprising:
And characterized by having
In order to detect white immature grains, in addition to the imaging of the heart white grains by reflected light, the lower light emitting section is turned on in a different pattern, the heart white grains are imaged by the transmitted light over the entire surface of the lower light emitting section, and the lower light emitting section 2. A grain discrimination system that combines an imaging means and an operation panel type information terminal, wherein a heart white grain is imaged twice by transmitted light of a spot. An upper imaging / illuminating unit, a lower lighting unit, and a tray for placing an arbitrary number of grains to be discriminated arranged between them, and for an arbitrary number of grains arranged in the tray Light is irradiated from the upper light emitting unit of the upper imaging / illuminating unit having an image sensor and the reflected light is imaged by the upper imaging / illuminating unit, or the lower light emitting unit of the lower lighting unit for the arbitrary number of grains An imaging means for irradiating light from and imaging the transmitted light with the upper imaging / illumination unit to obtain image data by reflected light or transmitted light;
A program memory storing an application program for discriminating grains, and capturing and storing image data of an arbitrary number of grains that are discrimination targets imaged by the imaging means, and a limit reference product for grain appearance inspection, standard Terminal storage unit for storing various image data related to products, operation panel type operation display unit, image data of an arbitrary number of grains stored in the terminal storage unit based on the application program, and limit for grain inspection Comparing various image data related to the reference product and the standard product, discriminating the grain quality of the image data of the arbitrary number of captured grains, obtaining the discrimination results, and performing this operation according to the operation on the operation panel type operation display unit Control means for displaying the determination result on the panel-type operation display unit, and an operation panel-type information terminal comprising:
And characterized by having
In order to detect the back side of the colored particles on the surface far from the image sensor in the upper imaging / illuminating unit, in addition to imaging the front surface of the colored particles by reflected light in the upper imaging / illuminating unit, Grain discrimination combining imaging means and operation panel type information terminal characterized in that imaging of the back of the colored grains by transmitted light and imaging of the back of the colored grains by transmitted light of the spot of the lower light emitting unit system.