JP6526474B2 - 植物用センサ装置 - Google Patents
植物用センサ装置 Download PDFInfo
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Classifications
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- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/427—Dual wavelengths spectrometry
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/002—Apparatus for sowing fertiliser; Fertiliser drill
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/007—Determining fertilization requirements
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
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- G—PHYSICS
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
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- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Insects & Arthropods (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fertilizing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
このことから、植物用センサ装置10(そのCPU23)では、間隔Dを求めることにより、草丈値Hを算出することが可能となる。本実施例のCPU23(植物用センサ装置10)では、生育状況測定対象(作物Cr)に照射した光(第1測定光P1および第2測定光P2)が反射により戻って来るまでの時間(光の飛行時間)と光の速度とから対象物までの距離を得る光飛行時間法(Time−of−Flight(ToF))を用いて間隔Dを求める。このため、CPU23は、本実施例では、第1測定光P1を出射した時点(時刻)と、その第1測定光P1の生育状況測定対象(作物Cr)からの反射光Prを取得した時点(時刻)と、の時間差Δt(図14参照)を求める。
23 (制御部としての)CPU
24 (制御部としての)APCユニット
25 (制御部としての)演算処理ユニット
26 (発光部としての)第1発光部
27 (発光部としての)第2発光部
35 (受光部としての)測定用受光部
Cr (生育状況測定対象としての)作物
D 間隔
Fs 肥料散布機
H 草丈値
IA 照射領域
P1 (測定光としての)第1測定光
P2 (測定光としての)第2測定光
Pr 反射光
Δt 時間差
Claims (8)
- 生育状況測定対象を照射する測定光を出射する発光部と、
前記生育状況測定対象による前記測定光の反射光を受光する受光部と、
前記発光部と前記受光部とを駆動制御するとともに、前記測定光および前記反射光から前記生育状況測定対象での反射率を求めることで前記生育状況測定対象の分光植生指標を求める制御部と、を備え、
前記制御部は、前記測定光および前記反射光を用いて前記発光部から前記生育状況測定対象までの間隔を求め、前記間隔を用いて前記生育状況測定対象の草丈値を求めることを特徴とする植物用センサ装置。 - 前記制御部は、前記間隔と前記発光部の高さ位置と前記発光部による照射方向とを用いて前記草丈値を求めることを特徴とする請求項1に記載の植物用センサ装置。
- 前記制御部は、前記測定光およびその前記反射光の飛行時間から前記間隔を求めることを特徴とする請求項1または請求項2に記載の植物用センサ装置。
- 前記制御部は、前記測定光を出射した時点と、前記反射光を受光した時点と、の時間差から前記測定光およびその前記反射光の飛行時間を求めることを特徴とする請求項3に記載の植物用センサ装置。
- 前記発光部は、前記生育状況測定対象を照射すべく第1波長の第1測定光を出射する第1発光部と、前記生育状況測定対象を照射すべく前記第1波長とは異なる第2波長の第2測定光を出射する第2発光部と、を有し、
前記制御部は、前記第1発光部からの出射と前記第2発光部からの出射とを異なるタイミングで発光制御し、
前記制御部は、前記第1測定光を出射した時点とその前記反射光を受光した時点との時間差から前記第1測定光およびその前記反射光の飛行時間を求めて前記間隔を求めるとともに、前記第2測定光を出射した時点とその前記反射光を受光した時点との時間差から前記第2測定光およびその前記反射光の飛行時間を求めて前記間隔を求め、2つの前記間隔に基づいて前記草丈値を求めることを特徴とする請求項1から請求項4のいずれか1項に記載の植物用センサ装置。 - 前記制御部は、前記第1測定光およびその前記反射光の飛行時間と前記第1波長の光の速度とに基づいて前記間隔を求め、かつ前記第2測定光およびその前記反射光の飛行時間と前記第2波長の光の速度とに基づいて前記間隔を求め、2つの前記間隔に基づいて前記草丈値を求めることを特徴とする請求項5に記載の植物用センサ装置。
- 前記制御部は、前記発光部と前記受光部との位置関係と、前記受光部における受光位置と、から前記間隔を求めることを特徴とする請求項1または請求項2に記載の植物用センサ装置。
- 請求項1から請求項7のいずれか1項に記載の植物用センサ装置と、肥料を散布する肥料散布機と、を備える施肥システムであって、
前記肥料散布機は、前記植物用センサ装置から取得した前記分光植生指標と前記草丈値とに基づいて、肥料の散布量を調整することを特徴とする施肥システム。
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JP2015092650A JP6526474B2 (ja) | 2015-04-30 | 2015-04-30 | 植物用センサ装置 |
PCT/JP2016/062461 WO2016175094A1 (ja) | 2015-04-30 | 2016-04-20 | 植物用センサ装置 |
US15/569,493 US10408678B2 (en) | 2015-04-30 | 2016-04-20 | Sensor device for plants having a spectroscopy vegetation index and height of the target plant determination |
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KR102197321B1 (ko) * | 2019-06-05 | 2020-12-31 | 주식회사 마하테크 | 농작물 생육상태 모니터링 장치 |
JP7288632B2 (ja) * | 2019-08-06 | 2023-06-08 | ヤンマーパワーテクノロジー株式会社 | 生育値算出方法、および生育値算出システム |
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CN111664794A (zh) * | 2020-05-11 | 2020-09-15 | 中国水产科学研究院珠江水产研究所 | 一种应用生物量检测的装置及其方法 |
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JP2008079549A (ja) * | 2006-09-28 | 2008-04-10 | Mitsubishi Paper Mills Ltd | 樹木成長量の評価法 |
JP4982769B2 (ja) * | 2009-03-25 | 2012-07-25 | 国立大学法人長岡技術科学大学 | 作物の生育診断方法及び生育診断システム |
JP5564812B2 (ja) * | 2009-03-25 | 2014-08-06 | 独立行政法人農業環境技術研究所 | 植物体の生育変化の連続測定方法 |
DE102009052159A1 (de) * | 2009-08-05 | 2011-02-10 | Georg Fritzmeier Gmbh & Co. Kg | Messeinrichtung zur Bestimmung eines Vegetationsindex-Werts (REIP) von Pflanzen |
JP5718153B2 (ja) * | 2011-05-26 | 2015-05-13 | 株式会社トプコン | 植物用センサ装置 |
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