<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822020000100080</article-id>
<article-id pub-id-type="doi">10.18845/tm.v33i1.5023</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Monitoring the vertical oscillation of a spray bars through an electronic system]]></article-title>
<article-title xml:lang="pt"><![CDATA[Monitorando a oscilação vertical de barras de pulverização através de um Sistema Eletrônico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira-Althman]]></surname>
<given-names><![CDATA[Michael Patrick]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[Saulo Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-Alves]]></surname>
<given-names><![CDATA[Luiz Henrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Gomes]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade Estadual Paulista (UNESP Faculdade de Ciências Agronomicas Campus de Botucatu- SP ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Estadual Paulista (UNESP Faculdade de Ciências Agronomicas Campus de Botucatu- SP ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Universitário Católico Salesiano Auxilium  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidade Estadual Paulista (UNESP  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>33</volume>
<numero>1</numero>
<fpage>80</fpage>
<lpage>87</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822020000100080&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822020000100080&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822020000100080&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The aim of the present work was to develop and implement a system for the monitoring of the sprayer bar to obtain measurements of the vertical height of the bar, in order to provide more information at the moment of application and to facilitate its handling . The experiment was carried out at the Experimental Farm Lageado - FCA / UNESP of Botucatu. To perform the spraying, a Honda Fourtrax quadricycle was used, equipped with a 3 m spray bar working at an average speed of 6 km h -1. The tip used in the test was the AIXR11002 and the spacing between nozzles 0.50 m, totaling 6 nozzles. The spray bar was positioned at a height of 0.60 m in relation to the ground and in two situations of terrain: regular (little oscillation of bar) and irregular (much oscillation of bar). In this way, the data were collected by sensors and then sent to the arduino, which is a microcontroller, which can be controlled directly by the computer. In addition, oscillation with and without spraying was tested to test possible problems in the operation of the equipment. Analyzing the interaction of the treatments and working conditions of the sprayer bar with and without obstacles, and with and without spraying, there was no significant difference between treatments 1 compared to treatment 4 in relation to bar height in (cm), in terrain with obstacles. However, treatments (Treatment 2) and (Treatment 3) presented lower vertical oscillations of the bar. With this, in the spraying performed on flatter surfaces, there is less vertical movement of the bar, thus increasing the quality and efficiency of the application. The use of the electronic monitoring system, was efficient for the use during work, being possible to realize the readings of the vertical oscillations of the bar, besides evaluating the temperature and relative humidity of fast and efficient form. In all tests, the results of the readings were similar in each treatment, making clear that the information collected by the system are reliable.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O presente trabalho teve por objetivo desenvolver e implantar um sistema para o monitoramento da barra de pulverizadores, para se obter aquisições de dados de medições da altura vertical da barra, com a finalidade de proporcionar maiores informações no momento da aplicação e facilitar o manuseio da mesma. O ensaio foi realizado na Fazenda Experimental Lageado - FCA/ UNESP de Botucatu. Para realizar a pulverização foi utilizado um quadricíclo Honda Fourtrax, equipado com uma barra de pulverização de 3 m trabalhando a uma velocidade média de 6 km h- ¹. A ponta utilizada no ensaio foi a AIXR11002 e o espaçamento entre bicos 0,50 m, totalizando 6 bicos. A barra de pulverização foi posicionada a uma altura de 0,60 m em relação ao solo e em duas situações de terreno: regular e irregular. Analisando a interação dos tratamentos e as condições de trabalho não houve diferença significativa entre os tratamentos 1 em comparação a o tratamento 4 em relação altura da barra em (cm), em terrenos com obstáculos. Entretanto, os tratamentos 2 e 3 apresentaram menores oscilações verticais da barra. Com isso, na pulverização realizada em superfícies mais planas, há menor movimentação vertical da barra, aumentando assim, a qualidade e eficiência da aplicação. A utilização do sistema eletrônico de monitoramento, apresentou-se eficiente para a utilização durante trabalho, sendo possível realizar as leituras das oscilações verticais da barra, além de avaliar a temperatura e umidade relativa de forma rápida e eficiente.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Agricultura de precisão]]></kwd>
<kwd lng="en"><![CDATA[Pulverizador]]></kwd>
<kwd lng="en"><![CDATA[Tecnologia de Aplicação]]></kwd>
<kwd lng="en"><![CDATA[Tecnologia embarcada]]></kwd>
<kwd lng="pt"><![CDATA[Agricultura de precisão]]></kwd>
<kwd lng="pt"><![CDATA[Pulverizador]]></kwd>
<kwd lng="pt"><![CDATA[Tecnologia de Aplicação]]></kwd>
<kwd lng="pt"><![CDATA[Tecnologia embarcada]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>(1)</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Benez]]></surname>
<given-names><![CDATA[R. C]]></given-names>
</name>
</person-group>
<source><![CDATA[Análise da influência dos movimentos verticais e horizontais das barras de um pulverizador na aplicação da calda»,]]></source>
<year>2012</year>
</nlm-citation>
</ref>
<ref id="B2">
<label>(2)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Siqueira]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Antuniassi]]></surname>
<given-names><![CDATA[U. R.]]></given-names>
</name>
</person-group>
<collab>UNESP</collab>
<article-title xml:lang=""><![CDATA[Inspeção periódica de pulverizadores nas principais regiões de produção de soja no Brasil]]></article-title>
<source><![CDATA[Periodic inspection of sprayers on soybean production areas in Brasil]]></source>
<year>2011</year>
<page-range>92-100</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>(3)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barcellos]]></surname>
<given-names><![CDATA[L. C. da S]]></given-names>
</name>
<name>
<surname><![CDATA[Almeida]]></surname>
<given-names><![CDATA[R. de A.]]></given-names>
</name>
<name>
<surname><![CDATA[Leão]]></surname>
<given-names><![CDATA[P. G. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[J. G. da]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Desenvolvimento e avaliação de um pulverizador de barras a tração humana]]></article-title>
<source><![CDATA[Development and evaluation of a human traction sprayer equipped with bars and hydraulic nozzles]]></source>
<year>2006</year>
</nlm-citation>
</ref>
<ref id="B4">
<label>(4)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cunha]]></surname>
<given-names><![CDATA[J. P. da]]></given-names>
</name>
<name>
<surname><![CDATA[Teixeira]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Características técnicas de bicos de pulverização hidráulicos de jato plano]]></article-title>
<source><![CDATA[Revista Brasileira de Engenharia Agrícola e Ambiental]]></source>
<year>2001</year>
<volume>5</volume>
<page-range>334-48</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>(5)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[da Cunha]]></surname>
<given-names><![CDATA[J. P. A. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruas]]></surname>
<given-names><![CDATA[R. A. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[UNIFORMIDADE DE DISTRIBUIÇÃO VOLUMÉTRICA DE PONTAS DE PULVERIZAÇÃO DE JATO PLANO DUPLO COM INDUÇÃO DE AR]]></article-title>
<source><![CDATA[Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)]]></source>
<year>2006</year>
<page-range>61-6</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>(6)</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sumner]]></surname>
<given-names><![CDATA[P. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[«Reducing spray drift»,]]></source>
<year>1997</year>
</nlm-citation>
</ref>
<ref id="B7">
<label>(7)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Al Heidary]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Douzals]]></surname>
<given-names><![CDATA[J. P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sinfort]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Vallet]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of spray characteristics on potential spray drift of field crop sprayers: A literature review]]></article-title>
<source><![CDATA[Crop protection]]></source>
<year>2014</year>
<volume>63</volume>
<page-range>120-30</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>(8)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ALVES]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prototype of low-cost automation for bar sprays]]></article-title>
<source><![CDATA[in the application of pesticides]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B9">
<label>(9)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bakker]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[van Asselt]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Bontsema]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Müller]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[van Straten]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Autonomous navigation using a robot platform in a sugar beet field]]></article-title>
<source><![CDATA[Biosystems Engineering]]></source>
<year>2011</year>
<volume>109</volume>
<page-range>357-68</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>(10)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Griepentrog]]></surname>
<given-names><![CDATA[H. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Dühring Jaeger]]></surname>
<given-names><![CDATA[C. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Paraforos]]></surname>
<given-names><![CDATA[D. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Robots for Field Operations with Comprehensive Multilayer Control]]></article-title>
<source><![CDATA[Künstl Intell]]></source>
<year>2013</year>
<volume>27</volume>
<page-range>325-33</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>(11)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Heinemann]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Kasper]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Development of a row guidance system for an autonomous robot for white asparagus harvesting]]></article-title>
<source><![CDATA[Computers and Electronics in Agriculture]]></source>
<year>2011</year>
<volume>79</volume>
<page-range>216-25</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>(12)</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Auat Cheein]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Steiner]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Perez Paina]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Carelli]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimized EIF-SLAM algorithm for precision agriculture mapping based on stems detection]]></article-title>
<source><![CDATA[Computers and Electronics in Agriculture]]></source>
<year>2011</year>
<volume>78</volume>
<page-range>195-207</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
