{"id":650,"date":"2024-04-10T17:37:35","date_gmt":"2024-04-10T15:37:35","guid":{"rendered":"https:\/\/wp.unil.ch\/captographies\/?page_id=650"},"modified":"2024-05-02T11:46:41","modified_gmt":"2024-05-02T09:46:41","slug":"documentation","status":"publish","type":"page","link":"https:\/\/wp.unil.ch\/captographies\/participer\/documentation\/","title":{"rendered":"Documentation"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Document d&rsquo;accompagnement pour la construction du capteur<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Construire-son-capteur_Captair_Wifi_2024_04_17_web.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 Construire-son-capteur_Captair_Wifi_2024_04_17_web.\"><\/object><a id=\"wp-block-file--media-cf61a431-48b2-4d61-aa7e-2cb2b31dc627\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Construire-son-capteur_Captair_Wifi_2024_04_17_web.pdf\">Construire-son-capteur_Captair_Wifi_2024_04_17_web<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Construire-son-capteur_Captair_Wifi_2024_04_17_web.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-cf61a431-48b2-4d61-aa7e-2cb2b31dc627\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Captair_Schema_Montage_2024_01_11_web.pdf\" type=\"application\/pdf\" style=\"width:100%;height:448px\" aria-label=\"Contenu embarqu\u00e9 Captair_Schema_Montage_2024_01_11_web.\"><\/object><a id=\"wp-block-file--media-f2d3ecb4-deb5-4a69-bf62-c4e39831daaa\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Captair_Schema_Montage_2024_01_11_web.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Captair_Schema_Montage_2024_01_11_web<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Captair_Schema_Montage_2024_01_11_web.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-f2d3ecb4-deb5-4a69-bf62-c4e39831daaa\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-79b1a371-89da-4b4b-8d4e-ef1c055408a7\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Annexe_principe_programmation.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Annexe_principe_programmation<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Annexe_principe_programmation.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-79b1a371-89da-4b4b-8d4e-ef1c055408a7\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Comment installer son capteur \u00e0 la maison en 2 \u00e9tapes ?<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Connexion_capteur_maison_Captair_2023_11_28_web-1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 Connexion_capteur_maison_Captair_2023_11_28_web-1.\"><\/object><a id=\"wp-block-file--media-836084ee-75bc-4024-b459-cfb08f3d20c7\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Connexion_capteur_maison_Captair_2023_11_28_web-1.pdf\">Connexion_capteur_maison_Captair_2023_11_28_web-1<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Connexion_capteur_maison_Captair_2023_11_28_web-1.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-836084ee-75bc-4024-b459-cfb08f3d20c7\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Comment assurer la qualit\u00e9 de mesure d&rsquo;un r\u00e9seau de capteurs low-cost \u00e0 Lausanne ? <em>Shadya Gamal et No\u00e9 Fellay, Rapport de Design Project, EPFL, dirig\u00e9s par Satoshi Takahama &amp; David Vernez.<\/em><\/h2>\n\n\n\n<p>Les conclusions du rapport sont les suivantes.<\/p>\n\n\n\n<p>Les travaux men\u00e9s dans le cadre du pr\u00e9sent document ont permis de d\u00e9gager plusieurs conclusions importantes. Tout d&rsquo;abord, l&rsquo;analyse a r\u00e9v\u00e9l\u00e9 que les trois capteurs colocalis\u00e9s de <em>Capt<\/em>o<em>graphies<\/em> pr\u00e9sentaient un faible coefficient de variation, ce qui <strong>indique leur efficacit\u00e9 \u00e0 capturer les changements rapides dans les concentrations de particules<\/strong>. <strong>Ils effectuent \u00e9galement de bonnes mesures (comparativement \u00e0 des capteurs de r\u00e9f\u00e9rence) lorsque l&rsquo;humidit\u00e9 est inf\u00e9rieure \u00e0 80%. <\/strong><\/p>\n\n\n\n<p>L&rsquo;\u00e9tude a ainsi mis en \u00e9vidence l&rsquo;importance de prendre en compte le moment des mesures des capteurs. Comme les capteurs peuvent ne pas fournir des valeurs simultan\u00e9ment, des \u00e9v\u00e9nements transitoires ou des processus rapides peuvent entra\u00eener des variations dans les relev\u00e9s de concentration de PM. Il est <strong>donc conseill\u00e9 de se concentrer sur des valeurs calcul\u00e9es pour une moyenne sur une heure<\/strong> plut\u00f4t que sur les concentrations \u00e9lev\u00e9es occasionnelles de particules \u00e0 des moments pr\u00e9cis, afin d&rsquo;obtenir une repr\u00e9sentation plus pr\u00e9cise des tendances et des mod\u00e8les globaux.<\/p>\n\n\n\n<p>L&rsquo;\u00e9tude a d&rsquo;autre part mis en \u00e9vidence les <strong>difficult\u00e9s rencontr\u00e9es par les capteurs \u00e0 faible co\u00fbt pour mesurer avec pr\u00e9cision les concentrations de PM10<\/strong>. Cette limitation provient de la capacit\u00e9 restreinte des capteurs \u00e0 capturer une petite fraction des particules d&rsquo;a\u00e9rosol, g\u00e9n\u00e9ralement de l&rsquo;ordre de 3 \u00e0 5 %. Par cons\u00e9quent, les m\u00e9thodes statistiques et les techniques d&rsquo;extrapolation sont largement utilis\u00e9es, ce qui introduit des incertitudes et des inexactitudes potentielles dans l&rsquo;estimation des valeurs de PM10.<\/p>\n\n\n\n<p><strong>Ils ont donc prouv\u00e9 leur efficacit\u00e9 avec cependant certaines limites.<\/strong><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/DesignProject_FinalReport.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 DesignProject_FinalReport.\"><\/object><a id=\"wp-block-file--media-a8ec6200-c181-4bea-9778-130872ec0ca9\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/DesignProject_FinalReport.pdf\">DesignProject_FinalReport<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/DesignProject_FinalReport.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-a8ec6200-c181-4bea-9778-130872ec0ca9\">T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Fellay-et-Gamal_How-to-ensure-the-quality-of-measurements-of-a-low-cost-sensor-network-in-Lausanne.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Contenu embarqu\u00e9 Fellay-et-Gamal_How-to-ensure-the-quality-of-measurements-of-a-low-cost-sensor-network-in-Lausanne.\"><\/object><a id=\"wp-block-file--media-67bc7455-a0d3-4fa4-8e8a-bbbc043aecd5\" href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Fellay-et-Gamal_How-to-ensure-the-quality-of-measurements-of-a-low-cost-sensor-network-in-Lausanne.pdf\">Fellay-et-Gamal_How-to-ensure-the-quality-of-measurements-of-a-low-cost-sensor-network-in-Lausanne<\/a><a href=\"https:\/\/wp.unil.ch\/captographies\/files\/2024\/04\/Fellay-et-Gamal_How-to-ensure-the-quality-of-measurements-of-a-low-cost-sensor-network-in-Lausanne.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-67bc7455-a0d3-4fa4-8e8a-bbbc043aecd5\">T\u00e9l\u00e9charger<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Document d&rsquo;accompagnement pour la construction du capteur Comment installer son capteur \u00e0 la maison en 2 \u00e9tapes ? Comment assurer la qualit\u00e9 de mesure d&rsquo;un r\u00e9seau de capteurs&hellip;<\/p>\n","protected":false},"author":1118,"featured_media":533,"parent":210,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full-width-cover.php","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"class_list":["post-650","page","type-page","status-publish","has-post-thumbnail"],"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/pages\/650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/users\/1118"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/comments?post=650"}],"version-history":[{"count":5,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/pages\/650\/revisions"}],"predecessor-version":[{"id":745,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/pages\/650\/revisions\/745"}],"up":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/pages\/210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/media\/533"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/captographies\/wp-json\/wp\/v2\/media?parent=650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}