ES2127291T3 - Estructura y procedimiento para diferenciar un objeto de otro objeto. - Google Patents

Estructura y procedimiento para diferenciar un objeto de otro objeto.

Info

Publication number
ES2127291T3
ES2127291T3 ES93917331T ES93917331T ES2127291T3 ES 2127291 T3 ES2127291 T3 ES 2127291T3 ES 93917331 T ES93917331 T ES 93917331T ES 93917331 T ES93917331 T ES 93917331T ES 2127291 T3 ES2127291 T3 ES 2127291T3
Authority
ES
Spain
Prior art keywords
emitter
radiation
emitters
phase
modulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES93917331T
Other languages
English (en)
Other versions
ES2127291T5 (es
Inventor
Jim Beck
Tom Vyse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patchen Inc
Original Assignee
Patchen Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25444659&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2127291(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Patchen Inc filed Critical Patchen Inc
Publication of ES2127291T3 publication Critical patent/ES2127291T3/es
Application granted granted Critical
Publication of ES2127291T5 publication Critical patent/ES2127291T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • 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
    • A01M21/00—Apparatus for the destruction of unwanted vegetation, e.g. weeds
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4242—Modulated light, e.g. for synchronizing source and detector circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
    • G01J3/0229—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using masks, aperture plates, spatial light modulators or spatial filters, e.g. reflective filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Insects & Arthropods (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Catching Or Destruction (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Soil Working Implements (AREA)
  • Burglar Alarm Systems (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Air Bags (AREA)

Abstract

SE PRESENTAN UN APARATO Y UN METODO PARA ELIMINAR SELECTIVAMENTE LAS MALAS HIERBAS EN OPERACIONES AGRICOLAS. PARA LLEVAR A CABO UNA ELIMINACION SELECTIVA, SE MODULAN AL MENOS DOS EMISORES DE LUZ (RADIACIONES) (201, 202), ACCIONADOS POR UNA FUENTE DE ENERGIA INTERNA, PARA QUE SE ACTIVEN Y DESACTIVEN A VELOCIDADES MUY ALTAS. CADA EMISOR EMITE UNA RADIACION CON UNA LONGITUD DE ONDA EMISORA DIFERENTE. LA MODULACION DE ACTIVACION/DESACTIVACION DE UN EMISOR SE DESFASA EN 90 GRADOS APROXIMADAMENTE RESPECTO A LA MODULACION DEL PUNTO PARTICULAR DEL TERRENO. LOS HACES LUMINOSOS (203, 204), PROPORCIONADOS POR LOS EMISORES, SE REFLEJAN DE UNA PLANTA (206) O DEL TERRENO Y SON INTERCEPTADOS POR UN FOTODETECTOR. PUESTO QUE LAS PLANTAS TIENEN UNA REFLECTANCIA ESPECTRAL CARACTERISTICA EN REGIONES DEL ESPECTRO ELECTROMAGNETICO QUE SE PUEDEN DISCRIMINAR DE LA REFLECTANCIA ESPECTRAL DE LA TIERRA QUE SE ENCUENTRA EN UN SEGUNDO PLANO, LAS AMPLITUDES RELATIVAS DE LA RADIACION REFLEJADA EN LAS DOS LONGITUDES DE ONDA EMISORES VARIAN DEPENDIENDO DE SI LA RADIACION SE REFLEJA DE LA PLANTA O DEL TERRENO. UNA RELACION DE LA RADIACION DE LA DOS LONGITUDES DE ONDA EMISORAS RECIBIDA POR EL FOTODETECTOR SE CONVIERTE A UNA FASE. ESTA FASE SE COMPARA CON UNA FASE DE REFERENCIA INICIAL DE LA MODULACION DE UNO DE LOS EMISORES. UN CONTROLADOR (221) UTILIZA ESTA INFORMACION SOBRE LA FASE PARA DETERMINAR LA PRESENCIA O AUSENCIA DE UNA PLANTE Y A CONTINUACION ELIMINA LAS MALAS HIERBAS.
ES93917331T 1992-07-28 1993-07-27 Estructura y procedimiento que permite diferenciar un objeto de otro objeto. Expired - Lifetime ES2127291T5 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/920,942 US5296702A (en) 1992-07-28 1992-07-28 Structure and method for differentiating one object from another object

Publications (2)

Publication Number Publication Date
ES2127291T3 true ES2127291T3 (es) 1999-04-16
ES2127291T5 ES2127291T5 (es) 2002-06-16

Family

ID=25444659

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93917331T Expired - Lifetime ES2127291T5 (es) 1992-07-28 1993-07-27 Estructura y procedimiento que permite diferenciar un objeto de otro objeto.

Country Status (16)

Country Link
US (2) US5296702A (es)
EP (1) EP0653051B2 (es)
JP (1) JPH08501385A (es)
AT (1) ATE173819T1 (es)
AU (1) AU673186B2 (es)
BR (1) BR9306806A (es)
CA (1) CA2141038C (es)
DE (1) DE69322277T3 (es)
DK (1) DK0653051T4 (es)
ES (1) ES2127291T5 (es)
GR (1) GR3029475T3 (es)
HU (1) HUT73363A (es)
NZ (1) NZ254659A (es)
PL (1) PL173490B1 (es)
RU (1) RU2127874C1 (es)
WO (1) WO1994002812A1 (es)

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HU9500140D0 (en) 1995-03-28
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DE69322277D1 (de) 1999-01-07
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US5296702A (en) 1994-03-22
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