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Environmental Control of Plant Production Factory Using Programmable Logic Controller and Computer

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생물환경조절학회지 (Journal of Bio-Environment Control)
한국생물환경조절학회 (The Korean Society For Bio-Environment Control)
초록

This study was conducted to develop a system and an control algorithm for control the environment of a plant factory. The greenhouse control system for environmental control was largely composed of a computer and a PLC. The screen of control program was composed of a greenhouse figure which was included machinery and equipments for greenhouse, the graph of environmental factors of inside greenhouse and the image of greenhouse. In order to reduce temperature change, the operation time of ventilation window was changed by 3 stage according to difference between a target and present temperature. When is heating, a temperature variation was shown to be 16.7±0.8℃. When is cooling, a temperature variation was shown to be 23.1±0.6℃. When is humidifing, a humidity variation was shown to be 39.3±1.6℃ %RH. An environmental control system and a control algorithm were proved that it was shown a good performance in a control accuracy. So a computer control system should be adapted to a control system of a greenhouse and a plant factory.

저자
  • 김동억 | Kim, Dong-Eok
  • 장유섭 | Chang, Yu-Seob
  • 김종구 | Kim, Jong-Goo
  • 김현환 | Kim, Hyeon-Hwan
  • 이동현 | Lee, Dong-Hyeon
  • 장진택 | Chang, Jin-Taek