- 专利标题: DEVICE FOR OBSERVING WATER CONTENT, METHOD FOR OBSERVING WATER CONTENT, AND CULTIVATION DEVICE
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申请号: US15779759申请日: 2016-10-21
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公开(公告)号: US20200309687A1公开(公告)日: 2020-10-01
- 发明人: Takeshi FUJIYAMA , Yuuji TERASHIMA
- 申请人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 申请人地址: JP Osaka
- 专利权人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人地址: JP Osaka
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4eac1 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3d4e482d
- 国际申请: PCT/JP2016/004653 WO 20161021
- 主分类号: G01N21/3554
- IPC分类号: G01N21/3554 ; A01G25/16 ; G01N21/359 ; G01N21/3563 ; G01N21/84 ; G01N21/47
摘要:
A first beam source radiates, as a reference beam, 905 nm of near infrared beam having a characteristic in which light tends not to be absorbed in water toward a leaf of a plant. A second beam source radiates, as a measuring beam, 1550 nm of near infrared beam having a characteristic in which light tends to be absorbed in water toward the leaf of the plant. A threshold level setter/water content index detector calculates a water content index of one leaf which is a total sum Σ Ln (I905/I1550) of the reflection intensity ratio. A controller displays a graph representing the time-serial change of the water content contained in the plant from the start to the end of the measurement period on a UI screen of a monitor. Further, the controller is connected to an environmental control device that controls environmental conditions surrounding the plant, and instructs the control device to change or maintain the environmental conditions based on a change of increase and decrease in the water content contained in the calculated plant.
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