{"id":5442,"date":"2017-02-17T00:51:55","date_gmt":"2017-02-16T23:51:55","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/tarragones\/?p=5442"},"modified":"2019-04-30T10:35:08","modified_gmt":"2019-04-30T08:35:08","slug":"anogues","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/dinamitzacio\/trics\/anogues\/","title":{"rendered":"La lectura dels fen\u00f2mens meteorol\u00f2gics"},"content":{"rendered":"

\"CT\u00edtol: <\/span><\/em>La lectura dels fen\u00f2mens meteorol\u00f2gics<\/strong>
\nAutor:<\/strong><\/span><\/em> Aleix Nogu\u00e9s i Grau<\/strong>
\nTutor: <\/strong><\/span><\/em>Mario Pol\u00f3nia Rebelo
\nModalitat: <\/em><\/strong><\/span>Ci\u00e8ncies i tecnologia
\n\u00c0rea curricular:<\/span> <\/strong><\/em>Tecnol\u00f2gic
\nCentre:<\/strong><\/span><\/em> C Puigcerver
\nLocalitat: <\/strong><\/span><\/em>Reus<\/p>\n

En aquest treball he elaborat un prototip d\u2019una estaci\u00f3 meteorol\u00f2gica capa\u00e7 de mesurar les variables meteorol\u00f2giques i transmetre-les a un dispositiu m\u00f2bil des d\u2019on es puguin consultar a temps real. L\u2019estaci\u00f3 podr\u00e0 ser energ\u00e8ticament autosuficient ja que tindr\u00e0 l\u2019opci\u00f3 d\u2019alimentar-se a trav\u00e9s d\u2019unes plaques solars i una bateria, permetent aix\u00ed, que es pugui instal\u00b7lar a qualsevol lloc. Durant el projecte he treballat, principalment, en la transmissi\u00f3 de dades per via telem\u00e0tica, la programaci\u00f3 amb Arduino <\/em>i la programaci\u00f3 de APPs <\/em>per a m\u00f2bils.<\/p>\n

Objectius:<\/strong><\/h6>\n
    \n
  • Dissenyar i construir un prototip d\u2019estaci\u00f3 meteorol\u00f2gica.<\/li>\n
  • Programar el prototip perqu\u00e8 sigui capa\u00e7 d\u2019enregistrar les variables \u2028meteorol\u00f2giques i enviar-les a un servidor.<\/li>\n
  • Dissenyar una APP des d\u2019on visualitzar les lectures.<\/li>\n
  • Millorar els meus coneixements en programaci\u00f3 i transmissi\u00f3 de dades.<\/li>\n<\/ul>\n
    El proc\u00e9s:<\/strong><\/h6>\n

    \"captura-de-pantalla-2017-03-13-a-las-18-34-38\"<\/p>\n

    Vaig comen\u00e7ar la construcci\u00f3 de la meva estaci\u00f3 meteorol\u00f2gica fent-ne un primer
    \ndisseny amb ordinador. Despr\u00e9s vaig procedir a comprar el material necessari i montar-la. Per al meu prototip he escollit la placa Arduino UNO<\/em> que treballa conjuntament amb dues shields.\u2028Per les lectures de les variables meteorol\u00f2giques he utilitzat diferents sensors.<\/p>\n

    El programa que dona vida a l\u2019estaci\u00f3 meteorol\u00f2gica est\u00e0 format per dues parts diferents. La primera \u00e9s la part que controla els sensors i la Weather-Shield, la segona s\u2019encarrega de enviar totes les dades al servidor i, per tant, controla la Wifi-Shield. Per aconseguir arribar al programa final, les dues parts s\u2019han programat per separat i posteriorment s\u2019han ajuntat.<\/p>\n

    Arribats en aquest punt, tenim un Arduino capa\u00e7 de transmetre dades en una base de dades a internet. L\u2019objectiu d\u2019aquesta APP \u00e9s accedir a la base de dades i descarregar totes les lectures per tal de poder-les veure al m\u00f2bil. L\u2019APP s\u2019ha de connectar al servidor i, a trav\u00e9s d\u2019un fitxer php, descarregar les \u00faltimes lectures per poder-les mostrar en pantalla. S’ha programat utilitzant el programari “MIT AppInventor”.<\/p>\n

    La transmissi\u00f3 de dades Arduino-APP es fa a trav\u00e9s d\u2019un servidor a internet. Aquest servidor cont\u00e9 una base de dades amb una taula on es registren totes les lectures. Per poder gravar i llegir les lectures de l\u2019estaci\u00f3 a la base de dades utilitzem dos programes de format php. L\u2019esquema seg\u00fcent mostra el funcionament del sistema de comunicacions.<\/p>\n

    \"imagen-1\"<\/p>\n

    Conclusions:<\/strong><\/h6>\n

    Aquest treball ha estat, per mi, un gran desafiament. En un primer moment no vaig tenir clara la tem\u00e0tica del meu projecte. Vaig dubtar entre construir un dron personal o una estaci\u00f3 meteorol\u00f2gica. Finalment, i seguint el consell del meu tutor, em vaig decidir per la segona opci\u00f3. L\u2019objectiu inicial va ser ben clar des d\u2019un principi: l\u2019estaci\u00f3 havia de ser aut\u00f2noma i intel\u00b7ligent. Despr\u00e9s d\u2019haver comen\u00e7at a documentar-me, a mitjans del mes de juliol, vaig acabar de madurar el projecte i vaig decidir que la meva estaci\u00f3 havia de ser diferent. Existeixen moltes estacions meteorol\u00f2giques intel\u00b7ligents al mercat, per\u00f2, hi ha alguna cosa que cap d\u2019elles pugui fer? Despr\u00e9s d\u2019informar-me, vaig adonar-me que gaireb\u00e9 totes tenien una limitaci\u00f3: la dist\u00e0ncia. La majoria de les estacions meteorol\u00f2giques intel\u00b7ligents a la venda, es connectaven a trav\u00e9s de Bluetooth o Wi-Fi local als m\u00f2bils i que, per tant, amb la dist\u00e0ncia, perdien la comunicaci\u00f3. Finalment, vaig decidir que construiria una estaci\u00f3 meteorol\u00f2gica que pogu\u00e9s fer arribar les dades all\u00e0 on fos jo.<\/p>\n

    Malgrat la seva dificultat, la construcci\u00f3 i la programaci\u00f3 de l\u2019estaci\u00f3 meteorol\u00f2gica va progressar adequadament i en un temps prudencial. Tanmateix, em vaig bloquejar en la configuraci\u00f3 i la programaci\u00f3 del servidor i la base de dades. Els fitxers php no responien correctament i les lectures de l\u2019estaci\u00f3 no es registraven a la taula. Finalment, el problema va resultar ser un petit error en la declaraci\u00f3 de variables que impedia que el codi s\u2019execut\u00e9s correctament. En el moment de tancar aquesta mem\u00f2ria escrita segueixo ampliant l\u2019aplicaci\u00f3 per a m\u00f2bils.
    \nPer desenvolupar el treball he hagut d\u2019adquirir nous coneixements que mai havia estudiat a classe. Darrera d\u2019aquesta mem\u00f2ria hi ha una gran tasca d\u2019investigaci\u00f3 i documentaci\u00f3 que a vegades pot passar desapercebuda per\u00f2 que m\u2019ha suposat moltes hores de treball. Finalment, penso que el resultat del treball \u00e9s molt satisfactori. He assolit amb \u00e8xit tots els objectius plantejats inicialment i l\u2019estaci\u00f3 funciona correctament.<\/p>\n","protected":false},"excerpt":{"rendered":"

    C Puigcerver<\/p>\n","protected":false},"author":1,"featured_media":6220,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[391,70],"tags":[344,491],"class_list":["post-5442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencies","category-trics","tag-tecnologia","tag-trics_c-puigcerver"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/posts\/5442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/comments?post=5442"}],"version-history":[{"count":2,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/posts\/5442\/revisions"}],"predecessor-version":[{"id":6481,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/posts\/5442\/revisions\/6481"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/media\/6220"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/media?parent=5442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/categories?post=5442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/tarragones\/wp-json\/wp\/v2\/tags?post=5442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}