Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Remote monitoring of light environment using web-camera for protected chrysanthemum production

웹 카메라를 이용한 시설 내 국화생산 광 환경 원격 모니터링

  • Chung, Sun-Ok (Dept. of Biosystems Machinery Engineering, Chungnam National University) ;
  • Kim, Yong-Joo (Dept. of Biosystems Machinery Engineering, Chungnam National University) ;
  • Lee, Kyu-Ho (Dept. of Biosystems Machinery Engineering, Chungnam National University) ;
  • Sung, Nam-Seok (Dept. of Biosystems Machinery Engineering, Chungnam National University) ;
  • Lee, Cheol-Hwi (Chungcheongnam-do Agricultural Research & Extension Services) ;
  • Noh, Hyun-Kwon (Dept. of Biosystems Engineering, Chungbuk National University)
  • 정선옥 (충남대학교 바이오시스템기계공학과) ;
  • 김용주 (충남대학교 바이오시스템기계공학과) ;
  • 이규호 (충남대학교 바이오시스템기계공학과) ;
  • 성남석 (충남대학교 바이오시스템기계공학과) ;
  • 이철휘 (충청남도 농업기술원) ;
  • 노현권 (충북대학교 바이오시스템공학과)
  • Received : 2015.11.30
  • Accepted : 2015.12.14
  • Published : 2015.12.31
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Abstract

Increase of national family income improved demand of high-quality and year-round horticultural products including chrysanthemum. To meet these demand, farmers have introduced protected facilities, such as greenhouses, of which environmental conditions could be monitored and controlled. Environment management up to three weeks after transplanting is critical for chrysanthemum quality. Artificial lighting and light-blocking screen are especially important for long-day (day period > 13 hours) and short-day (night period > 13 hours) treatments. In this study, a web-camera was installed, and the image was obtained and transmitted to mobile phones to monitor the status of 3-wavelength(RGB) lighting environments. RGB pixel values were used to determine malfunctioning of the lighting lamps, and leaking out and incoming illumination status during short-day and long-day treatment periods. Normal lighting lamps provided RGB pixel values of 240~255. During long-day treatment period, G pixel values were useful to detect abnormal lighting conditions (e.g., leaking). During short-day treatment period, R pixel values were useful to determine incoming light (e.g., sun-light). Results of this study would provide useful information for remote monitoring of light conditions for protected chrysanthemum production under artificial lights.

Keywords

References

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