JPS6298234A - Bloom detecting device - Google Patents

Abstract

PURPOSE:To automatically control the environmental conditions for breeding gardening items by providing the means to detect the change in the reflection level on the surface of a gardening object and the means to detect the bloom (pollen) generation when the detected change is found beyond the prescribed level. CONSTITUTION:The surface is green as the basic color and the wave length level of the green color is large, in case of the gardening object being a cucumber, etc., when the gardening object 2 is irradiated by an optical source 1 and the reflecting light thereof is measured by a photodetector 3. Now, in case of a bloom being caused on the surface of the gardening object 2, the surface thereof becomes white and the green color is reduced and the wavelength level excepting the green is increased. So, the bloom is detected by performing the level judgement by a comparator 8 after irradiating the optical source 1 of monocolor f2 in case of the frequency of the basic color being taken as f2, detecting the light quantity by a sensor 6 through the filter 4 for f2 transmission and amplifying the output thereof by an amplifier 7. The generation of the bloom can be decided therefore by utilizing that the basic color level is reduced by the increase in the bloom quantity.

Description

[Detailed Description of the Invention] [Technical Field] The present invention is an optical sensor that detects the surface condition of gardening products such as vegetables and fruits, and is a novel bloom sensor that can automatically detect the degree of occurrence of dandruff. This is related to the detection device.

[Background technology]

Conventionally, in the field of agriculture and horticulture, the growth status of gardening products has been determined entirely visually, and no attempt has been made to automate this process.

[Purpose of the invention]

The present invention can be applied to the surface of garden products such as vegetables and fruits.
Focusing on the fact that the occurrence of bloom (fruit powder) is closely related to the growth environment conditions, the occurrence of bloom can be automatically detected by optically detecting the degree of bloom and making a bell judgment, thereby making it useful in the field of agriculture and horticulture. The purpose of the present invention is to provide a bloom detection device that enables automation of environmental control in plants.

[Disclosure of the Invention] Generally, the bloom (fruit powder) that occurs on the surface of vegetables, fruits, etc. is white under sunlight, and if the basic color of the fruit, etc. is green, it changes to a different color. This bloom is a waxy substance deposited on the surface of fruits, etc., and the degree of bloom varies depending on soil moisture, temperature, etc.

The present invention is intended to limit the increase in the occurrence of bloom by detecting the amount of bloom produced. Golden brother 1
As shown in the figure, when a gardening object (2) is irradiated with light from a light source +1+K and the reflected light is measured by a receiver (3), if the gardening object (2) is a lily or the like, the surface will be green as the basic color. As shown in FIG. 2, the green wavelength level is high.

Here, when a bloom occurs on the surface of the gardening object (2), the surface becomes white, the green color decreases, and the wavelengths other than green and the bell increase, as shown in FIG. Therefore, in the present invention, the same wave number of the basic color is set to f2. l! :When doing, the 4th
A filter having transmission characteristics like F and F2 in the figure, filter F11, f2 removal filter, filter F2
is an f2 transmission filter +4) (5)
Detection of bloom is made possible by a combination of a sensor for photoelectric conversion (6), an-5 (7+, etc.), and a photoelectric conversion sensor (6).

(Example 1) FIG. 5 shows the first embodiment of the present invention corresponding to claim 2.
This shows an example of f2 monochromatic light source f+
), the sensor (6) detects the amount of light through the f2 transmission filter (4), and the output is sent to the amplifier (7).
This method detects bloom by increasing the width with , then compacting, and then determining the level in step (8).Bloom occurrence is determined by using the fact that the basic color level decreases due to an increase in the amount of bloom. It is something to do.

(Example 2) FIG. 6 shows the second embodiment of the present invention corresponding to claim 3.
This shows an example of irradiating with a white light source (1) and dividing the reflected light into two, one of which is the basic color and a bell f2.
It is detected by the transmission filter (4), and on the other hand, f2
Detect the amount of color other than that with the f2 removal filter (5),
The occurrence of a system is determined by detecting the difference between these detection outputs.

(Embodiment 3) FIG. 7 shows the third embodiment of the present invention corresponding to claim 4.
This shows an example of how bloom occurs by using a white light source (1) and using an f2 removal filter (4) to determine the increase in the light intensity level of reflected light other than the basic color. It is designed to detect.

(Embodiment 4) FIG. 8 shows the fourth embodiment of the present invention corresponding to claim 5.
This shows an example of the embodiment shown in FIG. 5, in which a small fixture (9) is added to the embodiment shown in FIG. It provides a circuit for producing an output that controls the environment so as to reduce the increase in

(Embodiment 5) FIG. 9 shows the fifth embodiment of the present invention corresponding to claim 6.
In the example shown in Fig. 5, an optical fiber (101K) optical guide path is used to detect the average value of changes in the amount of light reflection at multiple points, rather than the reflection at one point. The projected light is dispersed to various places on the surface of the gardening object (2) using an optical fiber (lO), and the reflected light there is collected again using an optical fiber (10) to determine the average value. This is to detect.

〔Effect of the invention〕

Since the present invention is configured in a double series, it is possible to automatically and reliably detect the occurrence of blooms on horticultural crops such as vegetables and fruits, and to reliably monitor the growth status of horticultural crops. By being able to monitor, it has the effect of making it possible to automatically control the environmental conditions for growing horticultural products.

[Brief explanation of drawings]

Figure 1 is an example of the configuration of the present invention, Figure 2 is an explanatory diagram of the reflection level of the basic colors in the above, Figure 3 is an example of the reflected light spectrum when bloom occurs in the same as in the above, and Figure 4 is a bandpass diagram in the same as in the above. Figure 5 is a characteristic explanatory diagram of type and band-elimination type filters.
A circuit diagram of an example of. Figure 6 is a circuit diagram of the second embodiment, Figure 7 is a circuit diagram of the third embodiment, Figure 8 is a circuit diagram of the fourth embodiment, and Figure 9 is a circuit diagram of the fourth embodiment. It is a circuit diagram of a fifth example of
(2) is a garden product. Agent Patent Attorney Ishi 1) Chief Figure 1! 2 Figure 1 Appropriate (- Figure 4 Figure 5 Figure 6 Figure 7 Figure 6 A)

Claims (6)

[Claims] (1) Blooms that occur on the surfaces of garden products such as vegetables and fruits (
A means for detecting a change in the reflection level on the surface of a target horticultural object in a bloom detection device used to automatically detect the generation state of fruit powder (fruit powder) and control the horticultural environment; 1. A bloom detection device comprising means for detecting the occurrence of a bloom when the bloom occurs. (2) A patent claim comprising means for detecting the amount of reflected light of the same color as the basic color of the gardening object, and means for detecting the occurrence of a bloom when the amount of reflected light decreases by a predetermined value or more. The bloom detection device according to item 1. (3) A means for detecting the amount of reflected light of the same color as the basic color of the garden object, a means for detecting the amount of reflected light of light other than the basic color, and a level difference in the amount of reflected light by both of these detection means is equal to or greater than a predetermined value. 2. The bloom detection device according to claim 1, further comprising means for detecting the occurrence of bloom when: (4) A patent claim comprising means for detecting the amount of reflected light due to light other than the basic color of gardening objects, and means for detecting the occurrence of bloom when the amount of reflected light increases by a predetermined value or more. Bloom detection device according to scope 1. (5) means for detecting the amount of light reflected from gardening objects; means for differentiating the signal of the detected amount of reflected light to detect the amount of change in light amount per unit time; 2. The bloom detection device according to claim 1, further comprising detection means. (6) A patent claim characterized in that when detecting the amount of reflected light on the surface of a gardening object, the reflected light from multiple locations on the surface of the gardening object is guided through an optical fiber, and the amount of reflected light from multiple locations is detected all at once. The bloom detection device according to any one of items 1 to 5.