SU968631A1 - Colour sensitive sensor - Google Patents
Colour sensitive sensor Download PDFInfo
- Publication number
- SU968631A1 SU968631A1 SU813298345A SU3298345A SU968631A1 SU 968631 A1 SU968631 A1 SU 968631A1 SU 813298345 A SU813298345 A SU 813298345A SU 3298345 A SU3298345 A SU 3298345A SU 968631 A1 SU968631 A1 SU 968631A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- differential amplifier
- output
- signal
- sensor
- plant
- Prior art date
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Description
Изобретение относитс к сельскому хоз йству, в частности, к устройствам дл управлени работой автоматических прореживателей.The invention relates to agriculture, in particular, to devices for controlling the operation of automatic thinners.
Известны различные устройства дл распознавани цвета, содержащие источник излучени , оптические элементы , фотоприемник, усилитель и регистрирующую систему 1 .Various color recognition devices are known, comprising a radiation source, optical elements, a photodetector, an amplifier and a recording system 1.
Данные устройства сложны и не могут быть использованы дл распознавани цвета мелких объектов.These devices are complex and cannot be used to recognize the color of small objects.
Наиболее близким к изобретению по технической сущности вл етс цветочувствительный датчик, включающий фотоприемный блок и блок обработки фотосигнала 2 J.Closest to the invention to the technical essence is a color sensor, including a photodetector unit and a photo-signal processing unit 2 J.
Недостатком известного устройства вл етс невозможность его использовани дл распознавани мелких всходов на фоне почвы.A disadvantage of the known device is the impossibility of its use for recognizing small shoots against the background of the soil.
Целью изобретени вл етс распознавание мелких всходов на фоне почвы дл обеспечени качественного формировани густоты всходов на ранней стадии их созревани .The aim of the invention is the recognition of small seedlings against the background of the soil in order to ensure the quality formation of seedlings at an early stage of their maturation.
Поставленна цель достигаетс тем, что в устройстве, вклю чающем фотоприемный блок и блок обработки фотосигнала , фотоприемный блок содержитThe goal is achieved by the fact that in the device, including the photoreceiver unit and the photosignal processing unit, the photoreceiver unit contains
последовательно расположенные по ходу светового потока оранжевый светофильтр и делительное зеркало, за которым расположены два фотоэлектронных умножител , перед одним из которых установлены красный светофильтр, а перед вторым - зеленый, а блок обработки фотосигнала включает в себ два логарифмических усилител , диф10 ференциальный усилитель и схему выделени сигнала, причем вход каждого логарифмического усилител соединен с одним из фотоэлектронных умножителей , выход одного логарифмичес15 кого усилител соединен с неи.нвертирующим вхсшом дифференциального усилител , выход другого логарифмического усилител соединен с инвертирующим входом дифференциального sequentially located along the light flux, an orange filter and a dividing mirror, behind which there are two photomultipliers, in front of one of which a red filter is installed, and in front of the second is a green one, and the photo signal processing unit includes two log amplifiers, a differential amplifier signal, each input of a logarithmic amplifier is connected to one of the photomultipliers, the output of one logarithmic amplifier is connected to a non-inverted they vhsshom differential amplifier, the output of another logarithmic amplifier is connected to the inverting input of the differential
20 усилител , а выход дифференциального усилител соединен с входом схемы выделени сигнала.20, and the output of the differential amplifier is connected to the input of the signal isolation circuit.
На чертеже представлена схема цвёточувствительного датчика.The drawing shows the scheme of the color sensitive sensor.
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Цветочувствительный датчик содержит фотоприемный блок 1, который включает светофильтры красный 2 и зеленый 3, установленные перед фотоэлектронными умножител ми 4 и 5 и The color sensor contains a photodetector unit 1, which includes red 2 and green 3 light filters installed in front of photomultipliers 4 and 5 and
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813298345A SU968631A1 (en) | 1981-04-01 | 1981-04-01 | Colour sensitive sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813298345A SU968631A1 (en) | 1981-04-01 | 1981-04-01 | Colour sensitive sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
SU968631A1 true SU968631A1 (en) | 1982-10-23 |
Family
ID=20961949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813298345A SU968631A1 (en) | 1981-04-01 | 1981-04-01 | Colour sensitive sensor |
Country Status (1)
Country | Link |
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SU (1) | SU968631A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3702811A1 (en) * | 1987-01-27 | 1988-08-11 | So Resprom | COLOR-SENSITIVE SENSOR |
US5789741A (en) * | 1996-10-31 | 1998-08-04 | Patchen, Inc. | Detecting plants in a field by detecting a change in slope in a reflectance characteristic |
US5793035A (en) * | 1992-07-28 | 1998-08-11 | Patchen, Inc. | Apparatus and method for spraying herbicide on weeds in a cotton field |
US5833144A (en) * | 1996-06-17 | 1998-11-10 | Patchen, Inc. | High speed solenoid valve cartridge for spraying an agricultural liquid in a field |
US5837997A (en) * | 1992-07-28 | 1998-11-17 | Patchen, Inc. | Structure and method for detecting plants in a field using a light pipe |
-
1981
- 1981-04-01 SU SU813298345A patent/SU968631A1/en active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3702811A1 (en) * | 1987-01-27 | 1988-08-11 | So Resprom | COLOR-SENSITIVE SENSOR |
US5793035A (en) * | 1992-07-28 | 1998-08-11 | Patchen, Inc. | Apparatus and method for spraying herbicide on weeds in a cotton field |
US5837997A (en) * | 1992-07-28 | 1998-11-17 | Patchen, Inc. | Structure and method for detecting plants in a field using a light pipe |
US5833144A (en) * | 1996-06-17 | 1998-11-10 | Patchen, Inc. | High speed solenoid valve cartridge for spraying an agricultural liquid in a field |
US6062496A (en) * | 1996-06-17 | 2000-05-16 | Patchen, Inc. | Valve cartridge having pressure sensor for agriculture and weed control |
US5789741A (en) * | 1996-10-31 | 1998-08-04 | Patchen, Inc. | Detecting plants in a field by detecting a change in slope in a reflectance characteristic |
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