{"id":232760,"date":"2015-04-05T22:00:00","date_gmt":"2015-04-05T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/lacroix-electronics-membre-de-lalliance-lora\/"},"modified":"2015-04-05T22:00:00","modified_gmt":"2015-04-05T22:00:00","slug":"lacroix-electronics-membre-de-lalliance-lora","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/lacroix-electronics-membre-de-lalliance-lora\/","title":{"rendered":"Lacroix Electronics membre de l\u2019alliance LoRa"},"content":{"rendered":"<p class=\"MsoNormal\"><span style=\"color:windowtext\">Les opportunit&eacute;s des applications des objets connect&eacute;s concernent essentiellement la communication entre les objets, le Machine-to-Machine (M2M). En effet, plus de 65% de la population mondiale est d&eacute;j&agrave; connect&eacute;e par&nbsp; t&eacute;l&eacute;phone portable<sup> <\/sup>mais plus de 99% des objets ne sont pas encore connect&eacute;s&nbsp;! Grace aux connexions M2M, les potentiels d&rsquo;essor tr&egrave;s prometteurs concernent, entre autres, les march&eacute;s li&eacute;s &agrave; la sant&eacute;, compteurs intelligents, domotique et la ville intelligente.<\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"color:windowtext\">Pour r&eacute;aliser des applications n&eacute;cessitant une communication Machine-to-Machine,&nbsp; la technologie sans fil ou radio fr&eacute;quence (RF) est un des &eacute;l&eacute;ments clef pour un syst&egrave;me performant et efficace. Par exemple, &eacute;quiper un b&acirc;timent de commutateurs et de capteurs connect&eacute;s sans fil pour r&eacute;duire la consommation d&rsquo;&eacute;nergie et accroitre la s&eacute;curit&eacute; semble un calcul &eacute;conomique facile compar&eacute; aux couts du c&acirc;blage et de sa mise en &oelig;uvre. Mais les &eacute;conomies r&eacute;alis&eacute;es ont du mal &agrave; compenser le probl&egrave;me de maintenance si les batteries du syst&egrave;me sans fil install&eacute;es doivent &ecirc;tre chang&eacute;es avant 5 ans ou si la fiabilit&eacute; n&rsquo;est pas robuste. Pour les capteurs intelligents communicants en M2M, l&rsquo;optimisation en consommation d&rsquo;&eacute;nergie du syst&egrave;me capteur, de la communication radio et des donn&eacute;es est un challenge exponentiellement proportionnel &agrave; la dur&eacute;e de vie sur batterie requise et au milieu dans lequel le capteur doit communiquer. Une solution aboutie et efficace demande une connaissance approfondie bas&eacute;e sur des retours d&rsquo;exp&eacute;riences de l&rsquo;investissement.&nbsp;<\/span><\/p>\n<hr \/>\n<p class=\"MsoNormal\"><span style=\"color:windowtext\">Par exemple, les capteurs de LS\/L Sofrel, destin&eacute;s &agrave; la t&eacute;l&eacute;gestion d&rsquo;installations techniques des r&eacute;seaux d&rsquo;eau, utilisent la communication GSM\/GPRS. Ils sont install&eacute;s dans des milieux difficiles (regards enterr&eacute;s inondables) et une grande expertise est n&eacute;cessaire pour maitriser la communication RF avec de multiples protocoles et avec un compromis entre donn&eacute;es, transmission et assurance de la qualit&eacute; de service. R&eacute;sultat&nbsp;: une solution M2M fonctionnant 10 ans sur une pile et sans n&eacute;cessit&eacute; de maintenance, ce qui est crucial dans les milieux difficiles d&rsquo;acc&egrave;s. De tels efforts pour un tel niveau de performances ne sont pas r&eacute;alisables dans d&rsquo;autres applications n&eacute;cessitant une connexion M2M avec moins de contraintes.<\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"color:windowtext\">Un des d&eacute;fis de la consommation d&rsquo;&eacute;nergie dans la communication M2M est aussi li&eacute; &agrave; l&rsquo;ad&eacute;quation de la performance de la technologie RF utilis&eacute;e et de son utilisation pour un besoin donn&eacute;.<\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"color:windowtext\">R&eacute;cemment, un nouveau protocole de communication radio a &eacute;t&eacute; lanc&eacute; et facilitera la connexion longue port&eacute;e et &agrave; faible consommation de produits&nbsp;: <a href=\"http:\/\/lora-alliance.org\/\"><span style=\"color:windowtext\">LoRaWAN<\/span><\/a>. Cette technologie est id&eacute;ale pour la transmission de faibles d&eacute;bits de donn&eacute;es (de 0,3Kbps &agrave; 50 kbps) et est ad&eacute;quate pour les march&eacute;s comme la domotique ou l&rsquo;automatisation industrielle. De plus, ce protocole est propos&eacute; en Open Source facilitant son adoption pour le d&eacute;veloppement de nouvelles applications. Afin de d&eacute;velopper et promouvoir ce protocole, l&rsquo;alliance LoRa a &eacute;t&eacute; cr&eacute;&eacute;e en janvier dernier et lanc&eacute;e lors du salon CES &agrave; Las Vegas. <\/span><span style=\"color:windowtext\">Lacroix<\/span><span style=\"color:windowtext\"> Electronics en fait aujourd&rsquo;hui parti.<\/span><\/p>\n<p class=\"MsoNormal\"><span style=\"color:windowtext\"><a href=\"http:\/\/www.lacroix-electronics.fr\/\" target=\"_blank\" title=\"www.lacroix-electronics.fr\" rel=\"noopener\"><span style=\"color:windowtext\">www.lacroix-electronics.fr<\/span><\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour r\u00e9pondre aux demandes croissantes des clients sur les connexions RF \u00e0 longue distance et tr\u00e8s faible consommation, Lacroix Electronics est devenu membre de l\u2019alliance LoRa. Depuis plusieurs ann\u00e9es, cette soci\u00e9t\u00e9 a d\u00e9velopp\u00e9 une grande expertise radio, et LoRa s\u2019inscrit comme une brique technologique compl\u00e9mentaire \u00e0 ses services d\u2019industrialisation de communication radio.<\/p>\n","protected":false},"author":22,"featured_media":232761,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-232760","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Lacroix Electronics membre de l\u2019alliance LoRa ...<\/title>\n<meta name=\"description\" content=\"Pour r\u00e9pondre aux demandes croissantes des clients sur les connexions RF \u00e0 longue distance et tr\u00e8s faible consommation, Lacroix Electronics est devenu...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/232760\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lacroix Electronics membre de l\u2019alliance LoRa\" \/>\n<meta property=\"og:description\" content=\"Pour r\u00e9pondre aux demandes croissantes des clients sur les connexions RF \u00e0 longue distance et tr\u00e8s faible consommation, Lacroix Electronics est devenu membre de l\u2019alliance LoRa. Depuis plusieurs ann\u00e9es, cette soci\u00e9t\u00e9 a d\u00e9velopp\u00e9 une grande expertise radio, et LoRa s\u2019inscrit comme une brique technologique compl\u00e9mentaire \u00e0 ses services d\u2019industrialisation de communication radio.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/232760\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2015-04-05T22:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/import\/eci4671_lacroix.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"964\" \/>\n\t<meta property=\"og:image:height\" content=\"542\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"eeNews Europe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" 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