• 한국정보전자통신기술학회논문지
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• 제12권3호
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• pp.201-210
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• 2019

본 논문에서는 농장의 위성 사진 혹은 드론 사진을 이용하여 농장을 구분하고 농장 드론과 트랙터의 자율주행 및 행동을 제어하는 'AMCS(Agricultural Machine Control System)'를 제안한다. AMCS는 드론과 트랙터의 센서 데이터 및 비디오 영상 데이터로부터 농장 경계를 구분하고, 메인 서버에서 원격 제어 명령어를 읽어 들인 후 드론 및 트랙터 스프링클러와의 연동을 통해, 관리지역 내의 원격 제어 명령을 전달하는 'LSM(Local Server Module)'과 드론과 트랙터가 농장 밖에서 농장으로 이동하는 경로와 농장 안에서 저비용, 고효율로 일을 처리할 수 있는 경로를 설정하는 'PSM(Path Setting Module)'으로 구성된다. 본 논문에서 제안하는 AMCS의 성능분석 결과 AMCS의 PSM은 외부 출발점에서 농장까지 도달하는 경로를 설정할 때 다익스트라 알고리즘보다 약 100% 향상된 성능을 보였으며, 농장 내부 작업 경로를 설정할 때 기존 경로보다 약 13% 높은 작업 효율을 보였고 36% 낮은 작업 거리를 설정했다. 따라서 PSM은 기존 방식보다 더 효율적으로 트랙터와 드론을 제어할 수 있다.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.II
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• pp.262-269
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• 2000

One of the way of the preserving environment is the circulation of materials. Japan's cereal food self-sufficiency rate is less than 30%. Japan imports more than 30 million tons of food every year. Japanese are afraid of international food trade giving damages to environment. Advanced farm mechanization integrated with precision farming is an answer to solve these problems. Crop scientists, soil scientists and agricultural engineers at Kyoto University cooperate together in studying precision agriculture for paddy rice since 1996. Automatic follow-up combine and autonomous vehicle have been developed. Remotely sensing by using machine vision has been studied to measure nitrogen contents. Field map i.e. soil, growth and yield, in paddy field of 0.5 ha has been made. In this report the concept and objectives of advanced farm mechanization and precision agriculture research at Kyoto University are introduced.

• 환경영향평가
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• 제14권3호
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• pp.127-134
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• 2005

Recently, aquaculture farm sites have been increased with demand of the expensive fish species and sea food like as seaweed, laver and oyster. Therefore coastal water quality have been deteriorated by organic contamination from marine aquaculture farm sites. For protecting of coastal environment, we need to control the location of aquaculture sites. The purpose of this study is to detect the laver aquaculture sites using multispectral remotely sensed data with autodetection algorithm. In order to detect the aquaculture sites, density slice and contour and vegetation index methods were applied with SPOT and IKONOS data of Shinan area. The marine aquaculture farm sites were extracted by density slice and contour methods with one band digital number(DN) carrying 65% accuracy. However, vegetation index algorithm carried out 75% accuracy using near-infra red and red bands. Extraction of the laver aquaculture site using remotely sensed data will provide the efficient digital map for coastal water management strategies and red tide GIS management system.

• 한국태양에너지학회 논문집
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• 제24권3호
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• pp.1-7
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• 2004

Using WAsP, which is PC-program for the vertical and horizontal extrapolation of wind data, annual energy production as well as wind energy density has been predicted for Haengwon wind farm in Jeju island. The predicted results were compared with real data derived from wind turbines in Haengwon wind farm. As the results, in order to produce more electric power, new wind turbines should be located along coastal line, which has comparatively high wind energy density. Also, the roughness length should be inputted to the Map Editor program for better agreement with real annual energy production.

• 한국환경과학회지
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• 제20권7호
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• pp.839-843
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• 2011

We have established a wind map of Singapore, a city-state characterized its land cover by urban buildings to confirm a possibility of wind farm development. As a simple but useful approximation of urban canopy, a zero-plane displacement concept was employed. The territory is divided into 15 sectors having similar urban building layouts, and zero-plane displacement, equivalent roughness height at each sector was calculated to setup a terrain boundary condition. Annual mean wind speed and mean wind power density map were drawn by a CFD micrositing model, WindSim where Changi International Airport wind data was used as an in-situ measurement. Unfortunately, predicted wind power density does not exceed 80 $W/m^2$ at 50 m above ground level which would not sufficient for wind power generation. However, the established Singapore wind map is expected to be applied for wind environment assessment and urban planning purpose.

• 한국환경과학회지
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• 제22권6호
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• pp.717-721
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• 2013

In order to analyze the effect of environmental protection on wind energy dissemination quantitatively, the onshore wind resource potential is estimated using Environmental Conservation Value Assessment Map and Korea Wind Resource Map. The onshore wind resource potential of 11 GW is calculated if wind farm development is prohibited within Class 1 area of Environmental Conservation Value Assessment plus 500 m buffer area. Therefore it is worried that environmental protection would be a practical barrier of accomplishing 4,155 thousand TOE target of wind energy dissemination until 2030.

• 한국환경복원기술학회지
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• 제17권4호
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• pp.17-27
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• 2014

Wind power which is one of renewable energies is higher economical efficiency and technical maturity than other renewable energies. Recently, the government of ROK announced to increase the proportion of renewable energy through the National Energy Plan. Also, industry required to deregulate for large-scale wind power as Renewable Portfolio Standard (RPS) is introduced. Wind power whereas the eco-friendly energy, is a serious level of damage of the natural environment and topography when the wind power is located. Therefore, the study selected the indicators required for site selection of wind power and proposed the feasible area for wind power based on wind resource map. We selected the 15 indicators including 12 legal protected area, Ecology and Nature Map, rarity, and connectivity (National Ecological Network). After site selection, we should be considered slope and altitude at the stage of design for wind farm to mitigate the environmental impact. Results of analysis showed that 22.3% of wind resource map is available to locate wind power in real. Through the field survey we had verified the accuracy of the results was significantly correct.

• 미래기술융합논문지
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• 1권1호
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• pp.1-6
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• 2022

2015년부터 정부에서는 한국형 스마트팜 보급에 노력하고 있다. 그러나, 기술 및 현행 재배 연구 데이터의 한계로 인해 대규모 시설 채소 농가에만 보급이 국한되고 있는 실정이다. 또한, 작물 생육 및 재배 환경을 고려하지 않은 IT 기술의 단순 적용으로 도입 비용 대비 효율성과 신뢰성이 낮은 상황이다. 따라서, 본 논문에서는 공공 및 외부 데이터를 기반으로 데이터 분석 서비스를 수행하고 이를 시설 재배 농가의 실정에 맞는 데이터 기반의 타깃형 스마트팜 시스템을 설계하였다. 이를 위해, 농장 위험 정보 알림 서비스를 개발하고, 적정 비료 시비를 위한 광환경지도를 제공하며, 시설 농장의 온습도 정보를 활용한 재배 작기별 병해 예측 모델을 설계하였다. 이를 통해, 기존의 스마트팜 센서 데이터와의 연계, 활용으로 스마트팜 데이터 서비스 구현이 가능하며, 데이터 활용에 경제적 효율성 및 데이터 신뢰성을 확보할 수 있다.

• 한국태양에너지학회 논문집
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• 제35권3호
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• pp.1-8
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• 2015

The MERRA reanalysis data provided online by NASA was applied to predict the monthly energy productions of Donghai Bridge Offshore wind farms in China. WindPRO and WindSim that are commercial software for wind farm design and energy prediction were used. For topography and roughness map, the contour line data from SRTM combined with roughness information were made and used. Predictions were made for 11 months from July, 2010 to May, 2011, and the results were compared with the actual electricity energy production presented in the CDM(Clean Development Mechanism)monitoring report of the wind farm. The results from the prediction programs were close to the actual electricity energy productions and the errors were within 4%.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2007년도 춘계종합학술대회
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• pp.671-674
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• 2007

유비쿼터스 센서 네트워크(Ubiquitous Sensor Networks)는 각종 센서에서 수집한 정보를 무선으로 수집할 수 있도록 구성한 네트워크를 말한다. 이러한 유비쿼터스 센서 네트워크에서 센서 노드는 한정된 전송 거리의 극복과 최적의 경로 설정으로 안정적인 데이터 전송이 중요하다. 이에 본 논문에서는 무선 메쉬 네트워크(Wireless Mesh Networks)를 이용한 센서 노드의 한정된 전송거리를 극복하고자 한다. 따라서 u-farm을 위한 환경감시 시스템은 무선 메쉬 네트워크의 MAP을 적용시켜 안정적인 데이터 전송이 이루어지도록 제안한다.