Weed discrimination using ultrasonic sensors

A new approach is described for automatic discrimination between grasses and broad-leaved weeds, based on their heights. An ultrasonic sensor was mounted on the front of a tractor, pointing vertically down in the inter-row area, with a control system georeferencing and registering the echoes reflect...

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Bibliographic Details
Authors: Andújar, Dionisio, Escolà i Agustí, Alexandre, Dorado, José, Fernández-Quintanilla, César
Format: article
Status:Published version
Publication Date:2011
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/243559
Online Access:http://hdl.handle.net/10261/243559
Access Level:Open access
Keyword:Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Patch
Sonar
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oai_identifier_str oai:digital.csic.es:10261/243559
network_acronym_str ES
network_name_str España
repository_id_str
spelling Weed discrimination using ultrasonic sensorsAndújar, DionisioEscolà i Agustí, AlexandreDorado, JoséFernández-Quintanilla, CésarWeed species discriminationSite-specific weed managementWide-row cropsUltrasound detectionPatchSonarA new approach is described for automatic discrimination between grasses and broad-leaved weeds, based on their heights. An ultrasonic sensor was mounted on the front of a tractor, pointing vertically down in the inter-row area, with a control system georeferencing and registering the echoes reflected by the ground or by the various leaf layers. Static measurements were taken at locations with different densities of grasses (Sorghum halepense) and broad-leaved weeds (Xanthium strumarium and Datura spp.). The sensor readings permitted the discrimination of pure stands of grasses (up to 81% success) and pure stands of broad-leaved weeds (up to 99% success). Moreover, canonical discriminant analysis revealed that the ultrasonic data could separate three groups of assemblages: pure stands of broad-leaved weeds (lower height), pure stands of grasses (higher height) and mixed stands of broad-leaved and grass weeds (medium height). Dynamic measurements confirmed the potential of this system to detect weed infestations. This technique offers significant promise for the development of real-time spatially selective weed control techniques, either as the sole weed detection system or in combination with other detection tools.This research was funded by the Spanish CICyT (project AGL 2008-04670-C03).Peer reviewedJohn Wiley & SonsComisión Interministerial de Ciencia y Tecnología, CICYT (España)Andújar, Dionisio [0000-0002-5801-0944]Escolà i Agustí, Alexandre [0000-0002-9775-5471]Dorado, José [0000-0002-2268-2562]Fernández-Quintanilla, César [0000-0002-2886-9176]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202120212011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/243559reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#AGL 2008-04670-C03https://doi.org/10.1111/j.1365-3180.2011.00876.xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2435592026-05-22T06:33:51Z
dc.title.none.fl_str_mv Weed discrimination using ultrasonic sensors
title Weed discrimination using ultrasonic sensors
spellingShingle Weed discrimination using ultrasonic sensors
Andújar, Dionisio
Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Patch
Sonar
title_short Weed discrimination using ultrasonic sensors
title_full Weed discrimination using ultrasonic sensors
title_fullStr Weed discrimination using ultrasonic sensors
title_full_unstemmed Weed discrimination using ultrasonic sensors
title_sort Weed discrimination using ultrasonic sensors
dc.creator.none.fl_str_mv Andújar, Dionisio
Escolà i Agustí, Alexandre
Dorado, José
Fernández-Quintanilla, César
author Andújar, Dionisio
author_facet Andújar, Dionisio
Escolà i Agustí, Alexandre
Dorado, José
Fernández-Quintanilla, César
author_role author
author2 Escolà i Agustí, Alexandre
Dorado, José
Fernández-Quintanilla, César
author2_role author
author
author
dc.contributor.none.fl_str_mv Comisión Interministerial de Ciencia y Tecnología, CICYT (España)
Andújar, Dionisio [0000-0002-5801-0944]
Escolà i Agustí, Alexandre [0000-0002-9775-5471]
Dorado, José [0000-0002-2268-2562]
Fernández-Quintanilla, César [0000-0002-2886-9176]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Patch
Sonar
topic Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Patch
Sonar
description A new approach is described for automatic discrimination between grasses and broad-leaved weeds, based on their heights. An ultrasonic sensor was mounted on the front of a tractor, pointing vertically down in the inter-row area, with a control system georeferencing and registering the echoes reflected by the ground or by the various leaf layers. Static measurements were taken at locations with different densities of grasses (Sorghum halepense) and broad-leaved weeds (Xanthium strumarium and Datura spp.). The sensor readings permitted the discrimination of pure stands of grasses (up to 81% success) and pure stands of broad-leaved weeds (up to 99% success). Moreover, canonical discriminant analysis revealed that the ultrasonic data could separate three groups of assemblages: pure stands of broad-leaved weeds (lower height), pure stands of grasses (higher height) and mixed stands of broad-leaved and grass weeds (medium height). Dynamic measurements confirmed the potential of this system to detect weed infestations. This technique offers significant promise for the development of real-time spatially selective weed control techniques, either as the sole weed detection system or in combination with other detection tools.
publishDate 2011
dc.date.none.fl_str_mv 2011
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/243559
url http://hdl.handle.net/10261/243559
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
AGL 2008-04670-C03
https://doi.org/10.1111/j.1365-3180.2011.00876.x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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