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公开(公告)号:US11255822B2
公开(公告)日:2022-02-22
申请号:US16637637
申请日:2018-07-19
申请人: Yanmar Co., Ltd.
发明人: Toru Takemoto , Akio Ishii
摘要: A system for monitoring fruit growth including: a vibration exciter that imparts predetermined vibration to a stem or a branch between a fruit and a stalk growing on a plant; a vibration sensor that detects vibration of the stem or the branch caused by the vibration imparted by the vibration exciter; and a detector that detects a weight or weight change of the fruit based on a frequency of the vibration detected by the vibration sensor.