• Journal of Biosystems Engineering
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• 제26권2호
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• pp.93-104
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• 2001

A linear chemigation system, integrating agrichemical appication units of pesticide and fertilizer into an irrigation system, was selected as a suitable model for the cost savings in farm management and automation. Technical designs were conducted in the areas of structure, power, drive, control, and hydraulic systems. An experimental farm was sectioned into the fields of 40m by 200m and systemized with the linear-move chemigation system of 36m in span. The chemigation system consisted of a base unit monitoring and controlling overall operation, and a driving unit traveling linearly and injecting agrichemicals. Monitoring and interlocking systems were utilized against unexpected malfunctions of power, injection and drive systems using radio freuency modems between the units. The system can be also modified to various farm sizes and stationary systems of indoor and outdoor.

• 컴퓨터교육학회논문지
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• 제7권1호
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• pp.67-77
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• 2004

본 논문에서는 시설내 작물재배 시스템의 완전자동화를 구현함에 동시에 자동 제어 방식 설계상에 존재하는 많은 문제들 때문에 실현하지 못했던 작물의 직접제어자동화를 구현하였다. 시설내 작물재배 자동제어 시스템은 제어대상에 따라서 세 가지로 구분될 수 있다. 시설외부로부터 기상 환경 등을 계측하여서 시설내 재배 제어에 응용하는 외부 환경 제어, 시설 내부 환경을 직접 계측하고 제어하는 내부 환경 제어, 작물의 성장에 직접 공급되는 배양액의 적절한 조성에 관련된 배양액 제어로 나눌 수 있다. 본 논문에서는 이 세 가지의 자동 제어시스템을 완전 실현하며, 배양액의 급액량을 제어함으로서 작물의 우량 성장을 자동적으로 조절할 수 있는 고난도 제어시스템을 설계하였다.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2000년도 춘계학술대회 학술발표 논문집
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• pp.59-62
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• 2000

In cope with insufficient agricultural labor and requirement of high quality product Hydroponics is a really good method. It makes the high density agriculture possible and all the growing environments controllable. So its research is so much progressing to maximize the quantity and quality of farm products. Furthermore, the big progress, in the research of a future agriculture, is systematically conducted for the automatic controlled system. In this paper, a new approach to the automation of the cultivation in a green house is suggested and a practical automatic control cultivation system is implemented. To automatically control and optimize the very nonlinear and time-varying growth of farm products, a hybrid strategy(FECA; Fuzzy Expertized Control Algorithm) is proposed which serially combines a fuzzy expert system with the fuzzy logic control. The fuzzy expert system(FMES; Fuzzy Model-based Expert System) is intended to overcome the non-linearity of the growth of farm products. The part of fuzzy controller is incorporated to solve the time-variance of the growth of farm products. Finally, the efficiency and the effectiveness of the implemented agricultural automation system is presented through the cultiviation results.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 D
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• pp.2992-2994
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• 2000

In cope with insufficient agricultural labor and requirement of high quality product Hydroponics is a really good method. It makes the high density agriculture possible and all the growing environments controllable. So its research is so much progressing to maximize the quantity and quality of farm products. Furthermore, the big progress, in the research of a future agriculture. is systematically conducted for the automatic controlled system. In this paper, a practical automatic control cultivation system is implemented. To automatically control and optimize the very nonlinear and time-varying growth of farm products, a hybrid strategy(FECA: Fuzzy Expertized Control Algorithm) is proposed which serially combines a fuzzy expert system with the fuzzy logic control. The fuzzy expert system (FMES: Fuzzy Model-based Expert System) is intended to overcome the non-linearity of the growth of farm products. The part of fuzzy controller is incorporated to solve the time-variance of the growth of farm products. Finally. the efficiency and the effectiveness of the implemented agricultural automation system is presented through the cultivation results.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.283-284
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• 2021

국내외 IoT(Internet of Things) 기반의 자동화 산업이 눈부시게 발전하고 있으며, 이러한 자동화 기술의 발전은 센서기술의 발전으로 더욱 가속화되고 있다. 최근에는 다양한 센서기술을 토대로 작물 재배를 목적으로 하는 스마트팜 산업이 급속하게 발전하고 있다. 스마트팜의 경우 작물 재배에 필요한 온도, 습도, CO2 등과 같은 대표적인 환경데이터를 계측하여 실시간 모니터링 및 모바일 서비스까지 제공하고 있다. 이러한 환경 모니터링 및 제어 동작의 대부분은 RS-485 기반의 모드버스(RTU) 통신방식을 활용하고 있다. 본 논문에서는 스마트팜 구축에 필요한 센서 데이터 및 액추에이터 정보를 IoT 표준 프로토콜인 MQTT(Message Queuing Telemetry Transport)를 사용하여 센서 데이터 및 액추에이터의 제어 동작을 LabView를 기반으로 플랫폼을 구축하여 성능을 테스트하고자 한다.

• Journal of Biosystems Engineering
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• 제21권4호
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• pp.474-481
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• 1996

Farm mechanization has been rapidly progressed in rice farming since the 1980's, in Korea. The mechanization has been achieved up to 95-97% in the year of 1995, except irrigation and drying process. However, rice production cost remains much more expensive than the cost of other rice farming countries. Since labor cost shares a major portion of the production costs, it is essential to save labor cost with automation and more sophisticated mechanization. However, it requires great capital investment which causes farm management worse. Therefore, the computer program was developed which can select machines to minimize the management and maintenance cost by analyzing available working days in different areas, machinery to purchase, farming size, total farming size in a village, number of machines and custom fee.

• International journal of advanced smart convergence
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• 제12권4호
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• pp.458-463
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• 2023

This study presents a paper on the implementation of a Raspberry Pi-based educational smart farm system. It confirms that in a real smart farm environment, the control of temperature, humidity, soil moisture, and light intensity can be smoothly managed. It also includes remote monitoring and control of sensor information through a web service. Additionally, information about intruders collected by the Pi camera is transmitted to the administrator. Although the cost of existing smart farms varies depending on the location, material, and type of installation, it costs 400 million won for polytunnel and 1.5 billion won for glass greenhouses when constructing 0.5ha (1,500 pyeong) on average. Nevertheless, among the problems of smart farms, there are lax locks, malfunctions to automation, and errors in smart farm sensors (power problems, etc.). We believe that this study can protect crops at low cost if it is complementarily used to improve the security and reliability of expensive smart farms. The cost of using this study is about 100,000 won, so it can be used inexpensively even when applied to the area. In addition, in the case of plant cultivators, cultivators with remote control functions are sold for more than 1 million won, so they can be used as low-cost plant cultivators.

• Journal of Biosystems Engineering
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• 제24권5호
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• pp.453-462
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• 1999

At the time of discontinuing the publishing of RDA Journal of Farm management and agricultural engineering the present paper is to review the research results produced since 1962 to 1998. During the three decades, from 1960s to 1980s, the main research efforts were focused o mechanization of rice farming which contributed in food grain productions. In the 1990s, the research direction was shifted to horticultural productions and producing high quality agricultural products. We had put stress on practical use of farm mechanization, mainly on transplanting and seeding operation for rice and upland and horticultural crops productions and harvest and threshing machinery developments, in which we thought our research direction had not been quite right. However, in the future we are going to promote mechanization on livestock and upland crops productions. Furthermore, we have a plan to employ cutting edge technologies in agricultural machinery developments in order to automate and unman all farm operations satisfying the needs of advanced agricultural mechanization technology in the twenty first century.

• 전자공학회논문지 IE
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• 제45권4호
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• pp.19-26
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• 2008

본 논문은 PLC를 이용하여 화훼재배, 수경재배, 비닐하우스재배 둥에 응용할 수 있는 원격제어장치를 개발하였다. 정보처리 및 자동화 분야의 급속한 발전으로 원격공장 자동화, Home Automation 등이 개발되어 실용화 되었으나 높은 가격으로 인한 경제적인 문제로 농업 응용분야에 적용하기에는 어려움이 많다. PLC를 이용하여 간단한 모듈로 고가의 시스템의 기능을 대체함으로서 경제성이 뛰어난 제품을 개발하였고 화훼재배, 비닐하우스 등 농촌지역의 자동화 시스템 개발의 가능성을 보였다. 모터제어기술, 마이크로프로세서, PLC프로그래밍, 무선 인터페이스 기술을 종합적으로 구현하여 본 자동화기술 시스템의 응용 모듈을 개발함으로써 화훼재배, 수경재배 둥과 같이 사람의 출입이 제한되고 작업이 어려운 곳에 원격제어를 통해 효과적으로 시스템을 제어할 수 있도록 하였다.

• 한국전자통신학회논문지
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• 제16권4호
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• pp.719-724
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• 2021

본 논문에서 식물 생산성 향상을 위해 온, 습도뿐만 아니라 조도까지 제어 가능한 스마트팜 동작 특성을 연구하였다. 연구된 스마트팜에서는 각 센서로부터 입력 값을 받아 제어부인 아두이노를 거쳐 제어부들이 동작할 수 있게 설계하였다. 그뿐만 아니라 스마트팜의 편리성을 극대화하기 위해서 블루투스 통신 모듈을 이용하여 모바일 폰에서도 제어가 가능할 수 있게 앱을 설계하였다. 연구를 통해 스마트팜의 자동화 기능이 식물이 자라기에 적합한 환경을 만들 수 있음을 확인할 수 있었다.