JP2006153567A - Automatic setting device of sorting set values for wheat grain sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple automatic setting device of the sorting set value of a wheat grain sorter, capable of setting the sorting set values in a short time. <P>SOLUTION: The automatic setting device of the sorting set value of the wheat grain sorter is constituted of a light source (1) for irradiating the wheat grains with near infrared rays with a specific range of a wavelength from below, a camera box (4) for receiving the light transmitted through the wheat grains in the irradiating light, to convent the received transmitted light into the electrical signal corresponding to the quantity of the transmitted light to output the electrical signal, a luminance distribution counter (5) for receiving the electrical signal, corresponding to the quantity of the transmitted light from the camera box and measuring the same by luminance to form the histogram to the brightness and a calculator (6) for newly calculating the estimated sorted set value of wheat grains measured in transmitted light quantity distribution, using the correlation of a known quantity value of transmitted light with the sorting set value corresponding to actual conforming product limit. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automatic setting device for sorting setting values of a wheat grain sorter, and more particularly to an automatic setting device for sorting setting values of a simple wheat grain sorter.

  The quality evaluation of wheat grains is difficult to understand visually. Actually, amylo values (values related to the viscosity obtained using the aminogram method), FN values (values related to the viscosity etc. obtained using the falling number method), etc. The “viscosity” value of is used to evaluate the quality of wheat grains.

  Therefore, even if it is classified into non-defective / defective products by a sorter, to confirm whether it was really able to remove low amylo values, wheat is first crushed and powdered, and the viscosity is measured with a falling number, etc. It took a lot of time. In addition, the low amylo value may be difficult to understand from the appearance, and it took time and effort to find out what setting value should be used first in setting the sorting setting value of the sorter.

  Currently, for example, an apparatus described in Japanese Patent Application Laid-Open No. 2003-1559569 is known as an apparatus for improving quality by selectively removing wheat having a low amylo value. Even in this device, the specific viscosity is not known at the sorting adjustment stage of the sorting machine, and it takes time and effort to adjust the sorting settings of the sorting machine when there is no difference between good and defective products (patents) Reference 1).

  For this reason, in the acceptance inspection, where the quality of many types of wheat grains must be measured quickly, the quality of the wheat grains, such as the actual viscosity, is easily evaluated in a short time, and the selection values of the wheat grain sorter are automatically set. An automatic setting device that can be set automatically is required.

Japanese Patent Application Laid-Open No. 2003-1559569

  An object of this invention is to provide the automatic setting apparatus which can evaluate the quality, such as the actual viscosity of a wheat grain, easily in a short time and can automatically set the selection value of a wheat grain sorter.

  The present invention has been made based on the idea that if the actual viscosity (FN value) of wheat grains can be predicted and estimated in a non-destructive state, a quick wheat sorter can be automatically set. Under such an idea, the present inventors pay attention to the luminance distribution of the transmission spectral amount, the luminance distribution of the transmission spectral amount of the wheat grain, and the value of the actual viscosity of the wheat grain that is regarded as a non-defective product limit by the wheat sorter. A regression analysis was performed to determine the selection setting value of the sorter for setting the non-defective product limit through the luminance distribution value of the transmission spectral quantity. First, several kinds of wheat grains having a certain amount sorted in advance by a sorter were prepared, and each transmission spectral amount was measured for each luminance (measurement time was constant) to create a histogram (see the graph of FIG. 1). Each wheat grain was then passed through a sorter, and the sorting setting value of the sorter was recorded when the actual viscosity of the wheat grain sorted as a good product became a product with no problem in trading. Next, regression analysis was performed with the transmission spectral value as an independent variable and the sorting set value of the sorter as a dependent value. Based on this result, a regression equation (prediction equation) that predicts the selection setting value that is the optimal non-defective product standard was derived, and the values used in the regression analysis were substituted again to verify whether there was a correlation. As a result, it was discovered that there is a high correlation and causal relationship between the sorting setting value of the actual sorting machine and the estimated sorting setting value derived through the luminance distribution of the transmission spectrum of wheat grains ( (See graph in FIG. 2).

  From this result, it is possible to estimate the selection setting value corresponding to the actual non-defective limit selection setting value of the wheat grain sorter by measuring the luminance distribution of the transmission spectral quantity with respect to the irradiation light luminance of the wheat grain, and in a non-destructive state, It came to the conclusion that the selection value of a wheat grain sorter can be set easily, and came to invent the automatic setting apparatus of this invention.

  Based on the above conclusion, in the present invention, the light source that mainly emits near-infrared light having a wavelength in a specific range from below the wheat grain and the light that has passed through the wheat grain out of the irradiated light are received and received. A camera box that converts the transmitted light into an electrical signal corresponding to the amount of the transmitted light, and outputs the electrical signal. The electrical signal corresponding to the amount of the transmitted light is received from the camera box, and the electrical signal is measured for each brightness. Estimating wheat grains that have newly measured the transmitted light intensity distribution using the correlation between the brightness distribution counting device that creates the histogram for the screen and the known transmitted light intensity value and the sorting setting value of the sorter corresponding to the actual non-defective product limit An automatic setting device that automatically sets the sorting setting value of the wheat grain sorter is configured by a calculation device that calculates the sorting setting value.

  In the automatic setting device of the present invention, in order to perform accurate measurement, a background of brightness close to wheat grains provided adjacent to the light source to prevent extraneous light, and the wheat grains A slit for limiting the observation visual field provided between the camera and the camera can be provided.

  According to the present invention, when selecting wheat that is in a non-destructive state and whose quality is unknown, it is possible to automatically set the selection value of the wheat grain sorter in a short time and to increase the number quickly. It can play a big role in acceptance inspections that have to sort out different kinds of wheat grains.

FIG. 3 is a block diagram showing a configuration of an automatic setting device for selection setting values of the wheat grain sorter according to the present invention.
The light source 1 emits near-infrared light in a specific wavelength range, and irradiates wheat grains as a measurement target from below. Of the irradiated light, the light transmitted through the wheat grains is collected by the camera box 4. In addition, what is shown by the code | symbol 2 is the background of the brightness close | similar to the wheat grain (namely, measurement object) provided in order to prevent miscellaneous light, and what is shown by the code | symbol 3 is It is a slit for limiting an observation visual field. The camera box 4 receives the transmitted light by the line sensor in the camera box 4, converts the received light into an electrical signal, and supplies it to the luminance distribution counting device 5. The luminance distribution counter 5 sums up the signals from the camera box 4 for each luminance, and creates a luminance distribution histogram. In the luminance distribution counting device 5, as shown in FIG. 4, the observed wheat grain image is divided into a checkered pattern, and the amount of light for each dot is totaled for each luminance to create a histogram. The histogram data created by the luminance distribution counter 5 is supplied to the calculator 6. The calculation device 6 stores the correlation between the histogram data obtained by measuring several histograms and the corresponding sorting setting values of the actual sorting machine in advance and the sorting setting values. Based on the stored correlation, calculate an estimated selection setting value of a new wheat grain object from the newly supplied histogram data, and select a setting value for this new object based on the calculation result Display and output the results. Based on the output result, the sorting setting value of the wheat grain sorter can be automatically set.

  The present invention has been made with respect to the sorting setting value of a wheat grain sorter, but the idea of the present invention is that every grain that sets the sorting setting value by measuring the viscosity by the falling number method or the like in the same manner as wheat grain. Needless to say, it is applicable to a sorter.

It is a graph which shows the histogram which measured the transmission spectral quantity of the wheat grain according to luminance. It is a graph which shows the correlation with the sorting setting value when the wheat grain is actually sorted, and the estimated sorting setting value. It is a block diagram which shows the structure of the quality measuring apparatus of this invention. It is the schematic diagram which showed the method of making the histogram according to the brightness | luminance of the light quantity of the observed wheat grain.

Explanation of symbols

1 light source, 2 background, 3 slits,
4 camera box, 5 brightness distribution counting device, 6 calculation device

Claims (2)

An automatic setting device for sorting setting values of a wheat grain sorter,
A light source that emits near-infrared light of a specific wavelength range from below the wheat grains;
A camera box that receives the light transmitted through the wheat grains of the irradiated light, converts the received transmitted light into an electrical signal corresponding to the amount of the transmitted light, and outputs it;
A luminance distribution counter that receives an electrical signal corresponding to the amount of transmitted light from the camera box, measures the electrical signal for each luminance, and creates a histogram for luminance;
A calculation device for calculating an estimated sorting setting value of wheat grains newly measured for a transmitted light amount distribution using a correlation between a value of a known transmitted light amount and a sorting setting value of a sorter corresponding to an actual non-defective product limit. An automatic setting device for sorting setting values of a wheat grain sorting machine. It is an automatic setting device for sorting setting values of the wheat grain sorting machine according to claim 1,
A background of brightness close to wheat grains provided adjacent to the light source to prevent extraneous light,
An apparatus for automatically setting a sorting set value of a wheat grain sorter, further comprising a slit provided between the wheat grain and the camera for limiting an observation field of view.