{"id":108916,"date":"2011-05-06T00:00:00","date_gmt":"2011-05-06T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/on-board-system-for-yield-and-guality-determination-in-grape-harvesters-development-and-field-validation\/"},"modified":"2011-05-06T00:00:00","modified_gmt":"2011-05-06T00:00:00","slug":"on-board-system-for-yield-and-guality-determination-in-grape-harvesters-development-and-field-validation","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-madrid\/on-board-system-for-yield-and-guality-determination-in-grape-harvesters-development-and-field-validation\/","title":{"rendered":"On-board system for yield and guality determination in grape harvesters: development and field validation"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Eva Mar\u00eda Baguena Isiegas <\/strong><\/h2>\n<p>La presente tesis doctoral recoge los trabajos llevados a cabo para el desarrollo y la validaci\u00f3n de dispositivos para la caracterizaci\u00f3n de la productividad superficial y la calidad de la uva, tanto en tiempo real, a bordo de vendimiadoras, como para la elaboraci\u00f3n de mapas a partir de la informaci\u00f3n georreferenciada. la toma de datos en campo se llev\u00f3 a cabo durante las campa\u00f1as de vendimia 2006, 2007 y 2008, donde se recogieron datos de 6, 34 y 86 parcelas, respectivamente. Al comparar los datos de peso recogidos en campo con los datos de bodega se obtuvo un ajuste de r2=0.9985, en la campa\u00f1a 2008. Un exhaustivo an\u00e1lisis posterior de los datos ha permitido observar una serie de sesgos en el sistema de pesado. El estudio de dichos errores se ha desarrollado en laboratorio en dos fases, correspondientes a sendos estudios llevados a cabo en katholieke universiteit leuven. En la primera fase se ha estudiado la posible relajaci\u00f3n de la c\u00e9lula de carga y su relaci\u00f3n con variaciones de temperatura. En la segunda fase se ha analizado el efecto sobre la se\u00f1al de la c\u00e9lula de carga, de la composici\u00f3n de la carga (porcentajes de material s\u00f3lido y l\u00edquido) y su desplazamiento en la tolva de la vendimiadora. Para ello se han empleado t\u00e9cnicas de an\u00e1lisis de imagen aplicadas a los v\u00eddeos tomados durante los ensayos de inclinaci\u00f3n variable de la m\u00e1quina. Los resultados muestran que tanto la composici\u00f3n como el desplazamiento de la carga afectan significativamente al sistema de pesado. la obtenci\u00f3n en campo de datos georreferenciados ha permitido la elaboraci\u00f3n de mapas de productividad superficial para las campa\u00f1as 2007 y 2008. Al comparar dichos mapas para las dos campa\u00f1as se observan diferencias temporales en dicha productividad superficial. el sistema de refractometr\u00eda instalado en la vendimiadora para determinar el contenido de s\u00f3lidos solubles (ssc) en la uva no funcion\u00f3 de forma continua en las distintas campa\u00f1as. Sin embargo, en la campa\u00f1a 2008 se obtuvieron datos completos de ssc para 7 parcelas, que al ser comparados con los datos de bodega, dieron como resultado un ajuste de r2=0.9477.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>On-board system for yield and guality determination in grape harvesters: development and field validation<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 On-board system for yield and guality determination in grape harvesters: development and field validation <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Eva Mar\u00eda Baguena Isiegas <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 05\/06\/2011<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pilar Barreiro Elorza<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jaime Ortiz-ca\u00f1avate puig mauri <\/li>\n<li>\u00e1ngela Ribeiro seijas (vocal)<\/li>\n<li>Jaime Arno satorra (vocal)<\/li>\n<li>  (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Eva Mar\u00eda Baguena Isiegas La presente tesis doctoral recoge los trabajos llevados a cabo para el desarrollo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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