• 한국통신학회논문지
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• 제40권4호
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• pp.780-790
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• 2015

식물공장의 필요성에 대한 시대적, 산업적 요구가 증가함에 따라 전 세계적으로 식물공장을 이용하여 다양한 작물을 재배하려는 연구가 이루어지고 있다. 그러나 대부분의 연구는 컨테이너 크기의 소형 식물공장 형태의 연구실을 대상으로 한 부분적인 기술에 국한되어 있으며, 경제적 효과를 확보하기 위한 대형 식물공장에 대한 연구는 부족한 상황이다. 본 연구에서는 수경인삼 식물공장의 사례를 통하여 ICT 기반의 스마트 팜 팩토리 시스템에 대한 연구를 진행하고자 한다. 스마트 팜 팩토리는 기존의 식물공장의 개념을 확장한 것으로 일부 환경정보를 수집하여 시설물을 제어 할 수 있는 기존의 식물공장 수준을 뛰어 넘어 식물 생육을 위한 정보의 수집과 시설의 운영 및 관리의 자동화가 가능하며, 수집된 정보를 이용하여 최적의 작물 생육을 위한 정보 분석과 이의 적용이 가능한 전사적인 식물공장 관리 시스템이다.

• 원예과학기술지
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• 제35권4호
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• pp.439-445
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• 2017

Transplant production in a plant factory with artificial lighting provides several benefits; (1) rapid and uniform transplant production, (2) high production rate per unit area, and (3) production of disease free transplants production. To improve the growth of runner plants when strawberry transplants are produced in a plant factory, we conducted two experiments to investigate (1) the effect of different light intensity for stock and runner plants on the growth of runner plants, and (2) the effect of different container volume for runner plants on their growth. When the stock and runner plants were grown under nine different light conditions composed of three different light intensities (100, 200, and $400{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ PPF) for each stock and runner plants, increasing the light intensity for stock plants promoted the growth of runner plants, however, the growth of runner plants was not enhanced by increasing the light intensity for runner plants under same light intensity condition for stock plants. We also cultivated runner plants using plug trays with four different container volumes (21, 34, 73, and 150 mL) for 20 days after placing the stock plants, and found that using plug trays with lager container volume did not enhance the growth of runner plants. These results indicate that providing optimal condition for stock plants, rather than the runner plants, is more important for increasing the growth of the runner plants and that the efficiency of strawberry transplant production in a plant factory can be improved by decreasing light intensity or container volume for runner plants.

• 생물환경조절학회지
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• 제28권2호
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• pp.104-109
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• 2019

식물공장에 재배 가능한 작물은 매우 다양할 것으로 본다. 식물공장에서 재식밀도에 대한 중요성이 인식되고 있다. 본 연구는 완전제어형 식물공장에서 콜라비의 재배에 적합한 재식밀도를 구명하기 위하여 수행되었다. 식물공장 형태는 형광등을 이용한 완전제어형태로, 박막수경재배를 이용하여 재배하였다. 재식밀도는 $22plants/m^2(15{\times}30cm)$, $27plants/m^2(15{\times}25cm)$, 그리고 $33plants/m^2(15{\times}20cm)$로 처리하였다. 식물체당 지상부 생체중과 건물중 또는 식물체당 벌브의 지상부 생체중와 건물중에는 재식밀도간 유의적인 차이를 보이지 않았다. 단위면적당 지상부 생체중과 건물중 또는 단위면적당 벌브의 지상부 생체중과 건물중에는 재식밀도가 높은 처리구($33plants/m^2$)에서 높게 나타났다. 재식밀도와 초장, 엽면적, 광합성, 경도 및 엽록소간에는 유의적인 차이를 보이지 않았다. 재식밀도와 벌브 높이와 지름 및 당도간에는 유의적인 차이를 보였다. 재식밀도가 낮은 $22plants/m^2$ 처리구에서 가장 높은 벌브 높이와 지름을 보였으며, 당도 또한 높았다. 이상의 결과를 바탕으로 결론을 내리면, 경제성을 고려한 생육적인 측면에서는 단위면적당 생산량이 많은 재식밀도 $33plants/m^2(15{\times}20cm)$가 적정하였으나, 당도와 같은 품질적인 측면에서는 재식밀도 $22plants/m^2(15{\times}30cm)$가 적정하였다.

• 조명전기설비학회논문지
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• 제25권10호
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• pp.14-22
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• 2011

The artificial lights to be introduced for the plant factories is requiring the artificial light resources with minimizing the energy consumption to reduce the greenhouse gases which is a major cause of global warming, and maximizing the efficiency in photosynthesis effect light-wave range, in which the plants can be greatly grown and developed, and having the signal light-wave range for forming the light types. the best growing and developing environment for the plants has recently realized with utilizing the LED(Lighting Emitting Diode) lamps, as a environment-friendly green lamps, which can elevating the light efficiency with using only the specific light wave range. In this study, to provide the necessary lights for the full artificial light type of the plant factory, the following research/study and experiments has been conducting. experiments of the spectrum for each light sources, and LED, The intensity of illumination, Irradiance, Photosynthesis Photon Flux Density.

• 한국생물환경조절학회:학술대회논문집
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• 한국생물환경조절학회 1996년도 국제심포지움 21세기 첨단식물생산시스템의 실용화
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• pp.1-10
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• 1996

Factory-style plant production systems of various kinds are the final goal of greenhouse production systems. These systems facilitate planning for constant productivity per unit area and labor under various outside weather conditions, although energy consumption is intensive. Physical environmental control in combination with biological control can replace the use of agricultural chemicals such as insecticides, herbicides and hormones to regulate plants. In this way, closed systems which do not use such agricultural chemicals are ideal for environmental conservation for the future. Nutrient components in plants can be regulafied by physical environmental control including nutrient solution control in hydroponics. Therefore, specific contents of nutrients for particular plants can be listed on the container and be used as the basis of customer choice in the future. Plant production systems can be classified into three types based on the type of lighting: natural lighting, supplemental lighting and completely artificial lighting (Plant Factory). The amount of energy consumption increases in this order, although the degree of weather effects is in the reverse order. In the addition to lighting, factory-style plant production systems consist of mechanized and automated systems for transplanting, environmental control, hydroponics, transporting within the facility, and harvesting. Space farming and development of pharmaceutical in bio-reactors are other applications of these types of plant production systems. Various kinds of state-of-art factory-style plant production systems are discussed in the present paper. These systems are, in general, rather sophisticated and mechaized, and energy consumption is intensive. Factory-style plant production is the final goal of greenhouse production systems and the possibilities for the future are infinte but not clear.

• 한국환경농학회지
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• 제40권4호
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• pp.270-278
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• 2021

BACKGROUND: Horticultural plant growth under field and/or greenhouse conditions is affected by the climate changes (e.g., temperature, humidity, and rainfall). Therefore investigation of hydroponics on field horticultural crops is necessary for year-round production of the plants regardless of external environment changes under plant factory system with artificial light sources. METHODS AND RESULTS: Common sage (Salvia plebeia), nasturtium (Tropaeolum majus), and hooker chive (Allium hookeri) plants were hydroponically culturing in the plant factory with blue-red-white LEDs (Light-Emitting Diodes) and fluorescent lights (FLs). Leaf numbers of common sage under mixture LED and FL treatments were 134% and 98% greater, respectively than those in the greenhouse condition. In hooker chives, unfolded leaf numbers were 35% greater under the artificial lights and leaf elongation was inhibited by the conventional sunlight compared to the artificial light treatments. Absorption pattern of NO₃-N composition in hydroponic solution was not affected by the different light qualities. CONCLUSION(S): Plant factory system with different light qualities could be applied for fresh-leaf production of common sage, nasturtium, and hooker chive plants culturing under field and/or greenhouse. Controlled light qualities in the system resulted in significantly higher hydroponic growth of the plants comparing to conventional greenhouse condition in present.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.960-964
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• 2005

Digital Virtual Manufacturing is a technology to facilitate effective product developments and agile productions by digital models representing the physical and logical schema and the behavior of real manufacturing systems including products, process, manufacturing resources and plants. A digital virtual factory as a well-designed and integrated environment is essential for successful applications of this technology. In this research, we constructed a sophisticated digital virtual factory of the shipbuilding company's section steel shop by 3-D CAD and virtual manufacturing simulation. This digital virtual factory can be applied for diverse engineering activities in design, manufacturing and control of the real factory.

• 한국CDE학회논문집
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• 제12권5호
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• pp.382-394
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• 2007

Nowadays, manufacturing industries undergo constantly growing pressures for global competitions, and they must shorten time and cost in product development and production to response varied customers' requirements. Digital virtual manufacturing is a technology that can facilitate effective product development and agile production by using digital models representing the physical and logical schema and the behavior of real manufacturing systems including products, processes, manufacturing resources and plants. For successful applications of this technology, a digital virtual factory as a well-designed and integrated environment is essential. In this paper, we developed a new classification and coding system for effective managements of digital virtual factory objects, and implement a supporting application to verify and apply it. Furthermore, a digital virtual factory layout management system based on the classification and coding system has developed using XML, Visual Basic.NET and FactoryCAD. By some case studies for automotive general assembly shops of a Korean automotive company, efficient management of factory objects and reduction of time and cost in digital virtual factory constructions are possible.

• 한국산학기술학회논문지
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• 제13권11호
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• pp.5052-5059
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• 2012

이 연구는 식물공장 시스템으로부터 재배된 농산물에 대한 소비자 선호속성과 지불의향을 파악하기 위해 수행되었다. 식물공장 시스템으로부터 재배되는 농산물은 상추, 딸기, 곰취, 인삼으로 구분하였다. 우리는 소비자의 구매행태와 선호를 조사하기 위해 설문지를 구성하고, 선호분석과 한계지불의사액(MWTP) 추정을 위해 최종적으로 200여개의 타당한 응답을 선택하여 분석에 이용하였다. 우리는 실증분석을 위해 컨조인트 분석과 다항로짓모형을 이용하였다. 품목별 지불의사액 추정결과, 상추 1,016원(100g), 딸기 6,014원(2kg), 곰취 3,652원(100g), 인삼 5,905원(100g)으로 나타났다. 몇몇 소비자 구매행태의 속성이 포착되어 제시되었고, 식물공장 시스템에 대한 보다 적절한 정책 수립을 위해 몇가지 정책적 함의가 제안되었다.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.109-121
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• 2020

As a decrease in labor became a serious issue in the manufacturing industry, smart factory technology, which combines IT and the manufacturing business, began to attract attention as a solution. In this study, we have designed and implemented a real-time remote management system for smart factories, which is connected to an IoT sensor and gateway, for plastic manufacturing plants. By implementing the REST API in which an IoT sensor and smart gateway can communicate, the system enabled the data measured from the IoT sensor and equipment status data to the real-time monitoring system through the gateway. Also, a web-based management dashboard enabled remote monitoring and control of the equipment and raw material processing status. A comparative analysis experiment was conducted on the suggested system for the difference in processing speed based on equipment and measurement data number change. The experiment confirmed that saving equipment measurement data using cache mechanisim offered faster processing speed. Through the result our works can provide the basic framework to factory which need implement remote management system.