JPS5810649A - Discriminating device for sort and ripeness of cereals - Google Patents

Abstract

PURPOSE:To discriminate the sort of cereals and compute the ripeness thereof by sensing and analyzing the color of grains. CONSTITUTION:Grains 1 which drop one by one from a supplying hopper at a prescribed velocity are irradiated by a light from a light source 5, and the reflected light therefrom falls on a color sensor 6. A wavelength signal of a color sensed by the sensor 6 is sent to a signal processing circuit 8, transduced thereby into a voltage signal, and is sent into a discriminating and processing circuit 11. In this circuit, the sort of grains is discriminated based on the range of the wavelength of the color and on the dropping velocity of the grains and, simultanously, the coefficient of ripeness of the grains of that sort is computed from the wavelength of the color. Signals thus obtained are sent to the driving circuit 12 of a selecting mechanism, and a dumper 4 is inclined when the grains whose color is sensed are different in sort, and when the coefficient of ripeness is lower than a prescribed value, and thereby the grains are dropped in an inferior sample tank 3. Dropping grains for other cases are stored in an acceptable sample tank 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain type and ripeness identifying device that is capable of determining the type of grain based on its color and simultaneously calculating a ripeness coefficient.

When measuring the moisture content of grains such as paddy, wheat, and barley, if the sample used for measurement contains grains of a different type, grains with low ripeness, or foreign substances, accurate measurement results may not be obtained. Therefore, the sample used for measurement must be free of these substances and must be of a certain ripeness level.

By the way, conventionally, the samples used for the above measurements are obtained by visually observing the extracted grains and sorting out grains of different types and grains with low ripeness, but this process cannot be carried out properly. Line 5 requires considerable skill and time, so it is strongly desired that the sample used for measurement be automatically obtained from the extracted grains.

In view of the above, the present invention detects the color of grains and analyzes it to determine the type of grain and calculate its ripeness coefficient. By operating a sorting mechanism that separates samples from
The present invention is intended to provide a grain type and ripeness identification device that can automatically obtain samples used for measuring moisture content, etc., and a preferred embodiment of the present invention is shown below in the accompanying drawings that constitute the present invention. Let's discuss an example.

In the 1st ml, 1 is a supply hopper of grains to be sampled;
Reference numeral 2 denotes a good sample storage cypress, and 3 a bad sample storage tank. Grains falling one by one from the supply hopper 1 are stored in either the good sample storage cypress 2 or the bad sample storage tank 3 by a damper 4. It's now 5. Numeral 5 is a light source that irradiates the falling grain with light, and 6 is a color sensor. The wrinkle color sensor 6 receives light reflected from the grain and senses the color of its surface. T is a light shielding plate between the light source 5 and the color sensor 6.

$ is a signal processing circuit 1, and # signal processing circuit 8 converts the wavelength of the color sensed by the color sensor 6 into a voltage signal. The voltage output of the signal processing m circuit 8 is converted into a digital signal via an analog-to-digital conversion circuit 9, and is then passed through an interface circuit 1o to identify the calculation circuit, etc. J6! It is sent to a@path 11.

This discrimination processing m1is path 11 has the function of discriminating the type of grain from the voltage signal output of the signal processing circuit 8 and calculating its ripeness coefficient6. Identification signal output is from interface circuit 1
0 to the damper drive circuit 12.

The damper drive circuit 12 tilts the damper 4 and controls the operation of the solenoid 13, and the identification processing circuit 11
If the signal sent from the 3-bit grain determines a different type of grain, and if the ripeness coefficient of that grain is less than a predetermined value, the damper is tilted toward the defective sample storage tank 3. The damper 4 is operated to tilt toward the good sample storage tank 2 side. Note that a sorting mechanism is constituted by the damper 4% damper drive circuit 12 and the solenoid ISK.

FIG. 2 shows the relationship between the color wavelength and the output voltage in the signal processing circuit 8. In FIG. This figure clearly shows 5.
When the wavelength signal of the color sensed by the color sensor 6 is sent to the signal processing circuit 8, the signal processing circuit 8 is arranged so that a corresponding voltage is generated.

Next, the operation of the present invention will be explained.

Now, when obtaining a sample for moisture measurement, etc., if an appropriate amount of extracted grains is put into the grain supply hopper IK, the grains will fall one by one from the wrinkle supply hopper 1 at a constant speed.

Then, the falling grains are irradiated with light rays from the light ms,
The reflected light beam enters the color sensor 6, and the color sensor +
8 senses the color of the grain. The color wavelength signal sensed by the color sensor 6 is sent to a signal processing circuit 8, converted into a voltage signal, subjected to necessary signal processing, and sent to an identification processing circuit 11 such as a calculation circuit.

In the identification processing circuit 11, the type of grain is determined from the color wavelength range and the falling speed of the grain, and at the same time, the ripeness coefficient of the grain of that type is calculated from the color wavelength.

When the type of grain is determined in the identification processing circuit 11 and the ripeness coefficient is calculated, the signal is sent to the drive circuit 1 of the sorting mechanism.
If the grain detected in one color is of a different type, or if the ripeness coefficient is below a predetermined value, the damper 4 tilts toward the defective sample storage tank 3, and the grain is The sample is stored in the defective sample storage tank 3. In addition, when the grain is other than the above, the damper 4 is inclined toward the good sample storage shell 2 side.

The falling grains are stored in a good sample storage tank 2. The grains stored in the good sample storage tank 2 are free from contamination with different types of grains and grains with low ripeness coefficients, and it is possible to obtain good samples for moisture measurement and the like.

In short, the present invention includes a color sensor 6 that senses the color of flowing grains, a signal processing circuit 8 that converts the wavelength of the color sensed by the color sensor 6 into a voltage signal, and a voltage signal output of the carcass signal processing circuit 8. A discrimination processing circuit 11 that discriminates the type of grain from the grain and calculates its ripeness coefficient, and a sorting mechanism that separates the grains into good samples and defective samples according to the judgment of the discrimination processing circuit 11 are provided. The type of grain can be determined by the color of the grain, and the ripeness coefficient can be calculated at the same time.
a. When measuring the moisture content of grains such as wheat and barley, it is possible to obtain good samples by completely removing different types of grains and grains with low ripeness. This has the effect that the selection can be performed automatically.

[Brief explanation of the drawing]

FIG. 1 is a pull diagram showing the configuration of the device, and FIG. 2 is a diagram illustrating the operation of the signal processing circuit. 4... Damper of the sorting mechanism, 5... Light source, 6... Color sensor, 8... Signal processing circuit, 11... Identification processing circuit, 12... Dankoku drive circuit of the sorting mechanism, 13
... Also the solenoid patent applicant Kaneko Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] A color sensor that senses the color of flowing grains, a signal processing circuit that converts the wavelength of the color sensed by the color sensor into a voltage signal, and a type of grain that is determined from the voltage signal output of the signal processing circuit. Grain type and ripeness identification device, characterized in that it is provided with an identification processing circuit that calculates its ripeness coefficient, and a sorting mechanism that separates grains into good samples and bad samples according to the judgment of the identification processing circuit. .