KR20220148451A - Soil moisture sensor compensation system using moisture volume percentage - Google Patents
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- KR20220148451A KR20220148451A KR1020210055489A KR20210055489A KR20220148451A KR 20220148451 A KR20220148451 A KR 20220148451A KR 1020210055489 A KR1020210055489 A KR 1020210055489A KR 20210055489 A KR20210055489 A KR 20210055489A KR 20220148451 A KR20220148451 A KR 20220148451A
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Abstract
Description
본 발명은 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템에 관한 것으로, 더욱 상세하게는, 토양 수분을 측정시 토양 수분 센서를 사용하여 수분 센서로부터 측정된 수분 값을 정밀 저울을 사용하여 보다 정밀하게 용적 수분함량을 실측하고 토양수분센서의 값을 실측값으로 보정하는 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템에 관한 것이다. The present invention relates to a calibration system for a soil moisture sensor using a moisture volume percentage. It relates to a calibration system of a soil moisture sensor using a volumetric moisture content (moisture volume percentage) that more precisely measures the volumetric moisture content by using it and corrects the value of the soil moisture sensor to an actual value.
토양 수분 센서 기술은 토양수분 센서 기술은 토양중에 수분의 양을 샘플링하여 대푯값을 전기적인 양으로 표현하는 기술이다. 토양수분 무게 실측 기술은 토양을 건조시켜 건조토양을 만들고 일정한 물의 양을 추가하여 무게를 측정하여 용적수분함량을 산출해 내는 기술이다. 상관관계/회귀분석 및 보간법은 통계적 분석을 이용하여 다른 대상의 상관관계 및 회귀분석 방법이며, 측정값 간의 관계를 이용하여 그 중간값들을 보간하는 방법을 말한다. 토양 수분측정에 있어서 정밀도를 높이는 것은 농작업 환경 관리 및 식물 생육상태 측정에 있어 매우 중요한 역할을 할 수 있다.Soil moisture sensor technology Soil moisture sensor technology is a technology that samples the amount of moisture in the soil and expresses a representative value as an electrical quantity. Soil moisture weight measurement technology is a technology that makes dry soil by drying the soil, adds a certain amount of water, measures the weight, and calculates the volumetric moisture content. Correlation/regression analysis and interpolation are methods of correlation and regression analysis of other objects using statistical analysis, and refer to a method of interpolating intermediate values using the relationship between measured values. Increasing precision in soil moisture measurement can play a very important role in agricultural work environment management and plant growth status measurement.
본 발명이 이루고자 하는 기술적 과제는, 토양 수분을 측정함에 있어 토양수분센서의 측정값과 무게를 통한 수분함량을 구함과 동시에 센서로부터 측정된 전압값과의 상관관계 분석과 회귀분석을 통하여 작물 근권부의 토양수분 수준 매핑을 통해 토양수분 정확도를 높이는 것을 해결하고자 한다.The technical problem to be achieved by the present invention is to obtain the moisture content through the measured value and weight of the soil moisture sensor in measuring the soil moisture, and at the same time, through the correlation analysis and regression analysis with the voltage value measured from the sensor, The goal is to improve soil moisture accuracy through soil moisture level mapping.
상기의 기술적 과제를 달성하기 위한 본 발명에 따른 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템은, 토양 수분을 측정하는 토양 수분 센서; 용적 수분 함량을 측정하는 정밀 무게 측정부; 및 상기 측정된 토양 수분과 용적 수분 함량과의 상관관계를 분석하는 분석부;를 포함하는 것을 특징으로 한다. In accordance with the present invention for achieving the above technical problem, a system for calibrating a soil moisture sensor using a moisture volume percentage includes: a soil moisture sensor for measuring soil moisture; Precision weighing unit for measuring volumetric moisture content; and an analysis unit for analyzing the correlation between the measured soil moisture and volumetric moisture content.
본 발명에 따른 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템에 의하면, 토양 수분 측정 시 물리적 관점에서 복잡할 뿐만 아니라 이론적 측면에서도 다양한 방법이 존재하며, 본 발명은 물리적 측면에서 확인된 용적수분함량을 근거로 토양수분 센서의 값을 매핑한 방법으로 본 발명을 이용하면 보다 빠르고 정확한 토양 용적 수분함량 값 계산이 가능하며 적용이 간편하여 활용성이 높아 파급효과가 크다.According to the calibration system of the soil moisture sensor using the moisture volume percentage according to the present invention, various methods exist in terms of not only the physical aspect but also the theoretical aspect when measuring soil moisture, and the present invention is confirmed from the physical aspect If the present invention is used as a method of mapping the value of the soil moisture sensor based on the obtained volumetric moisture content, it is possible to calculate the soil volumetric moisture content more quickly and accurately.
도 1은 본 발명에 따른 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템을 도시한 개념도,
도 2는 상관관계 분석결과를 나타낸 개념도, 그리고,
도 3은 토양 용적수분함량과 토양수분센서 전압값 비교도를 나타낸다.1 is a conceptual diagram illustrating a calibration system of a soil moisture sensor using a moisture volume percentage according to the present invention;
2 is a conceptual diagram showing a correlation analysis result, and
3 shows a comparison diagram of soil volumetric moisture content and a voltage value of a soil moisture sensor.
이하에서 첨부의 도면들을 참조하여 본 발명에 따른 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템의 바람직한 실시예에 대해 상세하게 설명한다. Hereinafter, a preferred embodiment of a soil moisture sensor calibration system using a moisture volume percentage according to the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 토양수분센서의 용적수분함량 보정 기법의 구성은 토양수분센서 측정 및 보정 시스템에 따라 상관관계 분석부분과 이를 통해 토양 용적수분함량과 토양수분센서 전압값 비교하여 보정하는 부분으로 구성된다.The composition of the volumetric moisture content correction method of the soil moisture sensor according to the present invention consists of a correlation analysis part according to the soil moisture sensor measurement and correction system, and a part for comparing and correcting the soil volumetric moisture content and the soil moisture sensor voltage value through this. .
토양수분센서의 토양수분 정확도 측정 및 보정을 위해 로드셀을 이용하여 토양의 무게 측정이 가능하게 한 후 완전 건조시킨 토양에 일정량의 물을 공급하여 무게를 통한 산술적인 용적수분함량(moisture volume percentage)을 구함과 동시에 센서로부터 측정된 전압값과의 상관관계 분석과 회귀분석을 통하여 작물 근권부의 토양수분 수준을 매핑 한다. 물 공급에 따른 토양무게 변화 측정을 통한 토양 용적수분함량 측정값과 개발 센서에서 수신한 전압값과는 강한 음의 상관(상관계수 -0.95)관계를 보였으며, 함께 실험한 타사 제품(상관계수 -0.73)보다 우수한 결과를 보였으며, 이러한 실험체계를 기반으로 토양 종류에 따른 토양수분 측정치를 보정한다. To measure and correct soil moisture accuracy of the soil moisture sensor, a load cell is used to measure the weight of the soil, and then a certain amount of water is supplied to the completely dried soil. At the same time, it maps the soil moisture level in the root zone of crops through correlation analysis with the voltage value measured from the sensor and regression analysis. There was a strong negative correlation (correlation coefficient -0.95) between the soil volumetric moisture content measurement value through the measurement of soil weight change according to water supply and the voltage value received from the development sensor, and other products tested together (correlation coefficient - 0.73) showed better results, and based on this experimental system, the measured soil moisture was corrected according to the soil type.
이상의 설명에서 '제1', '제2' 등의 용어는 다양한 구성요소들을 설명하기 위해 사용되었지만, 각각의 구성요소들은 이러한 용어들에 의해 한정되어서는 안된다. 즉, '제1', '제2' 등의 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하기 위한 목적으로 사용되었다. 예를 들어, 본 발명의 권리범위를 벗어나지 않으면서 '제1구성요소'는 '제2구성요소'로 명명될 수 있고, 유사하게 '제2구성요소'도 '제1구성요소'로 명명될 수 있다. 또한, '및/또는'이라는 용어는 복수의 관련된 기재된 항목들의 조합 또는 복수의 관련된 기재된 항목들 중의 어느 항목을 포함하는 의미로 사용되었다. In the above description, terms such as 'first' and 'second' have been used to describe various elements, but each element should not be limited by these terms. That is, terms such as 'first' and 'second' are used for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a 'first component' may be termed a 'second component', and similarly, a 'second component' may also be termed a 'first component'. can Also, the term 'and/or' is used in the sense of including a combination of a plurality of related listed items or any of a plurality of related listed items.
이상에서 본 발명의 바람직한 실시예에 대해 도시하고 설명하였으나, 본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다. Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific preferred embodiments described above, and in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Anyone with ordinary skill in the art can make various modifications, of course, and such modifications are within the scope of the claims.
Claims (1)
용적 수분 함량을 측정하는 정밀 무게 측정부; 및
상기 측정된 토양 수분과 용적 수분 함량과의 상관관계를 분석하는 분석부;를 포함하는 것을 특징으로 하는 용적수분함량(moisture volume percentage)을 이용한 토양 수분 센서의 보정 시스템.a soil moisture sensor that measures soil moisture;
Precision weighing unit for measuring volumetric moisture content; and
and an analysis unit for analyzing a correlation between the measured soil moisture and volumetric moisture content.
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| KR102222190B1 (en) | 2020-09-23 | 2021-03-04 | (주)이레아이에스 | Apparatus for providing compensated vwc measured data and method thereof |
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