Satake Corporation

Hiroshima University

Hiroki Ishizuki

Hiroaki Takeuchi

Hideaki Matsushima

Jun Zheng

Hideaki Ishizu

Manabu Ikeda

Tatsuhiko Ochi

Takahiro Doi

Tomoyuki Miyamoto

Masazumi Hara

Kazuya Uchiyama

Akira Eto

Takayuki Emori

Hironori Arii

Shuichi Hirano

Yoshinari Morio

Yoshihisa Nakata

Kensuke Kawamura

Shinji Kaya

Controller of an optical sorter is configured to receive an input of a candidate for a target quality condition regarding an allowable mix rate of defective products in sorting targets discharged from the optical sorter as acceptable products, receive an input of quality information indicating a mix rate of the defective products regarding at least a part of the sorting targets, simulate, based on the information, a sorting result regarding a quantity and/or a yield of the sorting targets discharged as the acceptable products that is expected to be acquired when sorting is conducted by a sorting device to achieve the candidate for the target quality condition and output a result of the simulation, receive an input of a final target quality condition to be employed when conducting the sorting, and conduct the sorting based on a sorting control parameter that allows the final target quality condition to be achieved.

Optical sorter, sorting simulation apparatus, and simulation method regarding sorting of sorting target using optical sorter

A paddy discriminator includes a downflow gutter in which mixed grains including paddy and brown rice are aligned and flow down, a light emission source that irradiates the mixed grains discharged from the downflow gutter with light, and light receiving means capable of receiving reflected light and transmitted light from the mixed grains irradiated with light by the light emission source, wherein the light emission source includes first illumination means that is provided on a light receiving means side of the mixed grains and is capable of irradiating the mixed grains with light of a red component, and second illumination means that is provided on a side away from the light receiving means of the mixed grains and is capable of irradiating the mixed grains with light of a green component.

Paddy discriminator

An object of the present invention is to improve the quality level discrimination accuracy of the grain G by a grain quality level discrimination device. The device includes an optical unitthat emits light to the grain G, receives reflected and/or transmitted light from the grain G by a photosensor, and obtains information for discrimination of the quality level of the grain G from the upper and lower surface side of the grain G, and a quality level discrimination unitthat discriminates the quality level of the grain G on the basis of the information. The information on the upper and lower surface sides can be acquired by one optical unit at the same time so that the divergence therebetween due to the displacement or variation of the attitude of the grain G can be avoided. The reference plate for the correction of the information is placed outside of the moving path of the grain G to prevent it from soiling or damaging. Thus the deterioration of information can be avoided. Further, a reference plate especially for the information to be obtained from the side surface of the grain G may be provided for enhancing the accuracy of the side surface information. Thus the quality level discrimination accuracy can be improved further.

Grain quality level discrimination device

A method of creating quality grade discrimination criteria in a discrimination device that determines appearance quality grades of granular materials in accordance with the present invention includes a granular material placement step of sorting the granular materials on a per-quality-grade basis and placing the granular materials on an image-capture surface of the image-capturing unit; an imaging data acquisition step of capturing images of the granular materials placed on the image-capture surface by the image-capturing unit and thereby obtaining imaging data; a quality grade information acquisition step of obtaining, on a per-quality-grade basis, pieces of quality grade information on the respective granular materials on the basis of the imaging data; and a quality grade discrimination criteria creation step of creating quality grade discrimination criteria by using the quality grade information obtained on a per-quality-grade basis.

Method of creating quality grade discrimination criteria in granular material appearance quality grade discrimination device

An object of the present invention is to provide a grain transilluminating device capable of detecting all of the cracks whose orientations are variously different depending on grains without causing a sample dish to be rotated. According to the present invention, there is provided a grain transilluminating device causing light to enter a transparent bottom face of a sample dish obliquely from a downside, the device including: a base member; a rotary member rotatably disposed in the base member and having a light source on one lateral side, and provided with a reflective plate reflecting the light from the light source toward the bottom face of the sample dish; and a cover member attached onto the base member to constitute, along with the base member, an outer frame and having an opening part positioned above the rotary member to receive the sample dish, wherein an operating part for rotating operation on the rotary member is provided in the rotary member and an opening is formed in the outer frame, and the operating part is configured to extend outside from the outer frame through the opening and to be swingable with a center of the rotary member being an axis.

Grain transilluminating device

A technical object is to enable optical checks to be performed while allowing visual checks using a sample pan to be performed in a pseudo manner using an aggregate image (pseudo image) depicting grains loaded on the sample pan, by optically checking the grains using image information on the grains imaged by an imaging apparatus and creating the aggregate image using the image information. Thus, a grain appearance measuring apparatus includes imaging means for imaging a plurality of grains, analysis means for analyzing image information on the grains imaged by the imaging means in units of grains, processing means for processing the image information to form an aggregate image of the grains, and means for saving and/or displaying the aggregate image processed by the processing means. The processing means extracts grain images from the image information in units of grains and arranges the extracted grain images in units of grains, in a close state where the grain images are close to one another to form an aggregate image of the grain images.

Grain appearance measuring apparatus

Grain inspection device

A kernel component analysis device quantitatively analyzing a specific component contained in each of kernels on a kernel-by-kernel basis by spectroscopy includes: a light emitter configured to irradiate a kernel to be analyzed with light; a spectrum detector configured to detect a spectrum of light transmitted through and/or reflected from the kernel irradiated with the light; and a computing unit configured to calculate, on a kernel-by-kernel basis, a content of the specific component in the kernel to be analyzed, based on a spectrum value detected from an effective portion, which is suitable for quantitative analysis, of an image of the kernel by using a calibration curve indicating a relationship between a spectrum value at a specific wavelength and a content of the specific component.

Device and method for analyzing kernel component

A method is provided for calculating a weight ratio by quality grade using a grain appearance quality grade discrimination device. The method involves the steps of imaging a plurality of grains; discriminating the quality grade of the grains on the basis of data of the imaged grains; tallying, by quality grade, the number of pixels in said data of the imaged grains with regards to the grains whose quality grade has been discriminated; multiplying the number of pixels tallied by quality grade by a weight conversion coefficient per pixel predetermined by quality grade, and thereby converting said number of pixels into a weight by quality grade; and calculating the weight ratio by quality grade of the grains on the basis of the weight by quality grade.

Method for calculating weight ratio by quality grade in grain appearance quality grade discrimination device

A tray used to place granular materials on a reading surface of an image reading device has provided thereto a transparent bottom plate, a background vertically upstanding relative to the bottom plate, and reflective elements arranged at predetermined intervals parallel to the background. In order to enable an imaging means of the image reading device to receive a side view image of the granular materials in the thickness direction thereof with the granular materials placed on the bottom plate of the tray, the tray is provided with a technical means for bending and guiding, by the reflective elements, light from the granular materials in the thickness direction thereof to the direction of the optical axis of the imaging means.

Growing community of inventors

Tokyo, Japan

Hiroki Ishizuki