NZ229625A
Expired / Lapsed
NZ
⏱️ 0.0 years remaining
Sprayer detects presence of vegetation by foliage reflectance
Assignee: Mini For Agriculture And Rural
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Filing: 1989-06-20
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Granted: —
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Expires: 2009-06-20
Abstract
No abstract record available.
Inventors
- 👤 Keith Mccloy
- 👤 Warwick Felton
Bibliographic Details
Application Number
—
Jurisdiction
NZ
Data Source
google_patents
Last Synchronized
2026-11-05 12:13
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0089; B; B05; B05B; B05B12/00; B05B12/08; B05B12/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
Apparatus for controlling an agriculatural spray, the apparatus comprising: sensing means to determine irradiance in first and second bands of the electromagnetic spectrum; sensing means to ■ determine the radiance of a target area in the first and second bands; and means to control a spray in accordance with a determination of the relationship between the ratios of the radiance to the irradiance in each band respectively.
Claim 2
Dependent Claim
67 words
Apparatus for controlling an agriculatural spray, the apparatus comprising: sensing means to determine irradiance in first and second bands of the electromagnetic spectrum; sensing means to ■ determine the radiance of a target area in the first and second bands; and means to control a spray in accordance with a determination of the relationship between the ratios of the radiance to the irradiance in each band respectively.
Claim 3
Dependent Claim
44 words
2 . Apparatus as defined in claim 1 further incorporating an override sensor arranged to detect movement of the spray 15 apparatus and means to control a / being responsive to said override sensor to turn off the spray when the apparatus is stationary.
Claim 4
Dependent Claim
52 words
Apparatus as defined in claims 1 or 2 wherein said means .spray 20 to control a / incorporates a CPU and memory, wherein the memory contains a lookup table for comparing the ratios of the radiance to the irradiance in each band to determine if the spray should be turned on. 25
Claim 5
Independent Claim
31 words
An apparatus as defined in any one of the preceding claims wherein the first and second bands are the red and near infra-red wavebands of the electromagnetic spectrum. 'w 30 35
Claim 6
Independent Claim
44 words
An apparatus for controlling an agricultural spray substantially as hereinbefore described with reference to the accompanying drawings. sjPs ITBifUO / THE MINISTER FOR AGRICULTURE AND ./ RURAL AFFAIRS OF THE STATE OF NEW ■7 SOUTH WALES By -Hte/The!r Attorneys, HENRY HUGHES LIMITED, V 'ictt
Claim 7
Independent Claim
44 words
An apparatus for controlling an agricultural spray substantially as hereinbefore described with reference to the accompanying drawings. sjPs ITBifUO / THE MINISTER FOR AGRICULTURE AND ./ RURAL AFFAIRS OF THE STATE OF NEW ■7 SOUTH WALES By -Hte/The!r Attorneys, HENRY HUGHES LIMITED, V 'ictt
References Cited (Backward Citations)
No citation records indexed.
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