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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Detalles Bibliográficos
Autores: Andújar, Dionisio, Escolà i Agustí, Alexandre, Dorado, José, Fernández-Quintanilla, César
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2011
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/49472
Acceso en línea:https://doi.org/10.1111/j.1365-3180.2011.00876.x
http://hdl.handle.net/10459.1/49472
Access Level:acceso abierto
Palabra clave:Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Sensors
Males herbes -- Control
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spelling Weed discrimination using ultrasonic sensorsAndújar, DionisioEscolà i Agustí, AlexandreDorado, JoséFernández-Quintanilla, CésarWeed species discriminationSite-specific weed managementWide-row cropsUltrasound detectionSensorsMales herbes -- ControlA 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).John Wiley & Sons2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttps://doi.org/10.1111/j.1365-3180.2011.00876.xhttp://hdl.handle.net/10459.1/49472reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MICINN//AGL2008-04670-C03-02Versió preprint del document publicat a https://doi.org/10.1111/j.1365-3180.2011.00876.xWeed Research, 2011, vol. 51, núm. 6, p. 543-547(c) Andújar et al., 2011(c) European Weed Research Society, 2011info:eu-repo/semantics/openAccessoai:repositori.udl.cat:10459.1/494722026-06-24T12:42:17Z
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
Sensors
Males herbes -- Control
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.subject.none.fl_str_mv Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Sensors
Males herbes -- Control
topic Weed species discrimination
Site-specific weed management
Wide-row crops
Ultrasound detection
Sensors
Males herbes -- Control
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
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1111/j.1365-3180.2011.00876.x
http://hdl.handle.net/10459.1/49472
url https://doi.org/10.1111/j.1365-3180.2011.00876.x
http://hdl.handle.net/10459.1/49472
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN//AGL2008-04670-C03-02
Versió preprint del document publicat a https://doi.org/10.1111/j.1365-3180.2011.00876.x
Weed Research, 2011, vol. 51, núm. 6, p. 543-547
dc.rights.none.fl_str_mv (c) Andújar et al., 2011
(c) European Weed Research Society, 2011
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Andújar et al., 2011
(c) European Weed Research Society, 2011
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:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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