JPH05107180A - Rice quality analyzer - Google Patents

Abstract

PURPOSE:To enable intuitive judging of rice quality by providing an indication of the rice quality which is easy to grasp. CONSTITUTION:A near-infrared spectroscopic analyzer 1 irradiates near-infrared light with continuously varied wave length to a rice sample, detects the transmitted light or reflected light from the rice sample and obtains the spectrum of the transmitted light or reflected light through the detection. A computer 2 processes the original spectrum obtained with the near-infrared spectroscopic analyzer 1, obtains the content of the component for quality evaluation in the rice sample, and controls the indication on an indicator 4 in graphs and figures in combination with the obtained content in the measurement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a rice quality analysis device for measuring the content of rice quality evaluation elements and displaying the measurement results on a display unit.

[0002]

2. Description of the Related Art Conventionally, as an apparatus of this type, the contents of fatty acid degree and protein, which are quality evaluation factors of rice, are measured by near-infrared spectroscopic analysis, and the measurement results are displayed on a CRT display screen. Things are known.

[0003]

However, in the conventional device, the measurement results of fatty acids, proteins, etc. were simply displayed in numerical form on the display screen. It is a difficult display. As a result, there is a problem that it is difficult to intuitively judge the quality of rice.

Therefore, an object of the present invention is to provide an easy-to-understand display for grasping the quality of rice so that the quality of rice can be intuitively judged.

[0005]

In order to achieve the above object, the present invention provides a content measuring means for measuring the content of a plurality of quality evaluation components in a rice sample by near-infrared spectroscopic analysis, and the respective measurement methods. And a content display means for displaying the content in the form of a chart in association with the content.

Further, the present invention is characterized in that the plurality of quality evaluation components are a component determined in the growth process of rice before harvesting and a component determined in the storage process of rice after harvesting.

[0007]

In the present invention, the content measuring means measures the content of a plurality of quality evaluation components in the rice sample by near infrared spectroscopy. The content display means displays each measured content in association with each other in the form of a chart.

As described above, according to the present invention, the measured contents of the quality evaluation components in the rice sample are associated with each other and displayed in the form of a chart, which is very easy to understand for grasping the quality of rice. Therefore, it is easy to intuitively judge the quality of rice.

[0009]

EXAMPLE Next, an example of the present invention will be described with reference to FIG.

This embodiment comprises a near infrared spectrophotometer 1 and
A computer 2 including a CPU and a memory, an input device 3 including a keyboard and a mouse, and a CRT
And a display device 4 including the above.

The near-infrared spectroscopic analyzer 1 irradiates a rice sample with near infrared rays by continuously changing the wavelength, detects transmitted light or reflected light of the rice sample, and detects the transmitted light spectrum or reflected light. This is to obtain the spectrum.

The computer 2 is a near infrared spectroscopic analyzer 1.
The original spectrum obtained in 1. is processed as described below to obtain the content of the quality evaluation component in the rice sample, and the measured contents thus obtained are related to each other as described below and displayed on the display device 4 in the form of a chart. It is controlled to do so.

Next, an example of the operation of the embodiment thus constructed will be described.

First, a rice sample in the form of grains is filled in a sample cell, and the sample cell is filled with a near-infrared spectrophotometer 1.
Set it in the measurement section of. When the measurement is started, a near infrared ray having a continuously changing wavelength is irradiated on the rice sample, and a spectrum corresponding to the reflected light from the rice sample is obtained. The computer 2 obtains each content of fatty acid and protein as a quality evaluation component in the rice sample from the spectrum by the following procedure.

That is, first, the original spectrum obtained by the infrared spectrophotometer 1 is secondarily differentiated. When obtaining the fatty acid content, 1334 nm is used as the main wavelength, and the fatty acid content is obtained by using a calibration curve that has been obtained in advance from the second derivative value at this wavelength. Also,
When the protein is obtained, 2190 nm is used as the main wavelength, and the content of the protein is obtained by using a calibration curve previously obtained from the second derivative value at this wavelength.

The fatty acid content and the protein content thus obtained are displayed on the display screen 5 of the display device 4 as shown in FIG.
Display at the corresponding position on the coordinates of. This coordinate is the vertical axis (Y
Axis is the fatty acid degree and the horizontal axis (X axis) is the protein content,
For example, the standard value of fatty acid content is “20 mg” and the standard value of protein content is “8%”, and there are four quadrants.

Further, as shown in FIG. 2, when the points plotted on the XY coordinates are clicked with the mouse cursor 6,
The computer 2 controls the display so that the sample number and the corresponding protein and fatty acid content measured values are displayed numerically on the screen, or the display screen is switched to the numerical display. It is preferable that the reference value and range width of the fatty acid content and the protein content can be changed by clicking the icon 7 pictorially displayed on the display screen as shown in FIG.

As described above, in the embodiment, since the protein and the fatty acid are displayed in association with each other on the XY coordinates, the display is very easy to understand for grasping the quality of rice, and thus the intuition of the quality of rice is obtained. Judgment becomes easy.

By the way, the content of protein is an index of the stickiness of rice, which is determined by the growth process of rice before harvesting.
The content of fatty acids is determined during the storage process of rice after harvesting and serves as an indicator of rice deterioration. Therefore, both are important as quality evaluation factors for rice, and are qualitatively different. Therefore, in the above embodiment, these elements are displayed in a graph in association with each other, which is suitable as a display when determining the quality of rice.

In FIG. 2, the measured values of fatty acid degree and protein are displayed on the XY coordinates, but instead of this, the display as shown in FIG. 3 may be used. That is, a table is displayed in which the vertical axis indicates “low”, “normal”, and “high”, and the horizontal axis indicates “low”, “normal”, and “high” in protein content. The sample number of the protein and fatty acid measured in the relevant part of this table is "1",
It is displayed as "2" or "3". By displaying in this way, it is preferable that the outline of the quality of the sample can be grasped, and if the measurement data is displayed in addition to the display, the details can be known.

Next, another embodiment of the present invention will be described. The configuration of this embodiment is the same as that of FIG. 1, and the display control by the computer 2 is different as in the flowchart shown in FIG. 4, so an example of the control will be described with reference to FIG.

First, the spectrum of the sample is measured by the near infrared spectrophotometer 1 (S1). Next, the computer 2 obtains the protein content, the fatty acid content, the water content, the green rice content rate (immature rice mixing rate) and the like from the spectrum as described above (S2).

Next, the operator is asked by the screen display of the display device 4 which of "A", "B" and "C" the quality display format by the chart (map) displayed on the display device 4 is. Then, when the operator selects and instructs one of them by operating the keyboard and the mouse which form the input device 3, the process proceeds to the next step S4. Here, an example of the quality display format is as follows.

Quality display example of "A": Quality evaluation map of rice according to fatty acid content and protein content Quality display example of "B": Quality evaluation map of rice according to fatty acid content, water content and measurement month Quality of "C" Display example: Rice quality evaluation map based on fatty acid content and blue rice content In step S4, it is displayed on the screen of the display device 4 whether the sample to be displayed is the one currently measured or a specific one. The operator is asked by the operator, and when the operator gives a selection instruction, the display device 4 is operated according to the result.
Is displayed (steps S5 to S7).

For example, when the quality display format of "A" is instructed and all the samples are instructed to be displayed, for all the samples currently measured,
For example, it is displayed on the display device 4 in the display format as shown in FIG. 2 or FIG.

According to the above embodiment, since the quality is displayed by the chart, the quality of rice can be visually judged. Also,
Since multiple maps are used, the quality can be displayed in multiple ways. In addition, the map of the required index can be freely switched and displayed, so the operability is good. In addition, you can easily add maps with new indicators at a later date without changing the version.

[0027]

As described above, according to the present invention, the measured contents of the quality evaluation components in the rice sample are related and displayed in the form of a chart, which is very useful for grasping the quality of rice. The display is easy to understand, which makes it easy to intuitively judge the quality of rice. Further, in the present invention,
The multiple quality evaluation components to be displayed are those determined by the growth process of rice before harvesting and those determined by the storage process of rice after harvesting. Therefore, it is extremely appropriate to label when evaluating quality.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a diagram showing a display example of the display device.

FIG. 3 is a diagram showing another display example of the display device.

FIG. 4 is a flowchart showing a display control example of another embodiment of the present invention.

[Explanation of symbols]

 1 near infrared spectrophotometer 2 computer 3 input device 4 display device

Claims (2)

[Claims] 1. A content measuring means for measuring the content of a plurality of quality evaluation components in a rice sample by near-infrared spectroscopy, and a content display means for displaying each measured content in association with each other in the form of a chart. And a rice quality analyzer. 2. The quality analysis of rice according to claim 1, wherein the plurality of quality evaluation components are a component determined by a growth process of rice before harvesting and a component determined by a storage process of rice after harvesting. apparatus.