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公开(公告)号：US10408678B2
公开(公告)日：2019-09-10
申请号：US15569493
申请日：2016-04-20
Applicant: TOPCON CORPORATION
Inventor： Peng Zhao , Shugo Akiyama , Issei Hanya
Abstract: To provide a plant sensor device capable of obtaining a parameter to determine a growth status other than a spectroscopy vegetation index without increasing its configuration. The plant sensor device includes a light emission part for emitting a measurement light to irradiate a target plant, a light receiving part for receiving a reflected light from the target plant, and a control section for controlling the light emission part and light receiving part. The control section determines a spectroscopy vegetation index of the target plant by obtaining a reflection rate of the target plant based on the measurement light and reflected light. The control section calculates a distance from the target plant to the light emission part in accordance with the measurement light and reflected light, and determines a plant height of the target plant based on the distance.
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公开(公告)号：US10345232B2
公开(公告)日：2019-07-09
申请号：US16065971
申请日：2016-12-21
Applicant: TOPCON CORPORATION
Inventor： Kaoru Kumagai , Shugo Akiyama , Issei Hanya , Peng Zhao , Masashi Funahashi , Yoshimitsu Nakajima , Yuji Shirane
IPC: G01N21/35 , G01N33/38 , G01N21/27 , G01N21/359
Abstract: A method of measuring a state of concrete includes emitting an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receiving a reflection light of the irradiation light P reflected on the concrete. At least five wavelengths λ1 to λ5, λ6 to λ10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, are determined, and a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion is estimated.
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