{"id":56,"date":"2021-07-23T10:27:48","date_gmt":"2021-07-23T10:27:48","guid":{"rendered":"http:\/\/www.iotmining.eu\/blog\/?p=56"},"modified":"2022-01-17T18:12:39","modified_gmt":"2022-01-17T18:12:39","slug":"longfi-helium","status":"publish","type":"post","link":"https:\/\/www.iotmining.eu\/blog\/longfi-helium\/","title":{"rendered":"LongFi by Helium"},"content":{"rendered":"\n<h2 class=\"has-extra-large-font-size\">Un protocole d\u00e9velopp\u00e9 pour le r\u00e9seau H\u00e9lium<\/h2>\n\n\n\n<p>Pour cr\u00e9er un nouveau type de r\u00e9seau,  The People&rsquo;s Network, Helium a d\u00fb imaginer un nouveau protocole sans fil appel\u00e9 LongFi.<\/p>\n\n\n\n<p>En effet LongFi est un protocole con\u00e7u sp\u00e9cialement pour un r\u00e9seau sans fil  qui connecte des milliers d&rsquo;objets de l&rsquo;Internet \u00e0 une passerelle associ\u00e9e au r\u00e9seau Helium. Ces objets sont g\u00e9n\u00e9ralement des trackers, des capteurs d&rsquo;environnement, d&rsquo;\u00e9nergie, etc..  Ils sont de plus en plus utilis\u00e9es dans tous les secteurs pour am\u00e9liorer la productivit\u00e9 et r\u00e9duire la pollution. <br>Nombre d&rsquo;entre eux utilisent le protocole LoRaWAN. En effet LoRaWAN permet \u00e0 ces objets, le plus souvent aliment\u00e9 par une pile, de consommer tr\u00e8s peu d&rsquo;\u00e9nergie et d&rsquo;avoir une port\u00e9e importante.<\/p>\n\n\n\n<p>Les passerelles utilisent le protocole LongFi pour communiquer sans fil avec :<\/p>\n\n\n\n<ul><li>les capteurs compatibles H\u00e9lium sur le r\u00e9seau<\/li><li>d&rsquo;autres passerelles pour \u00e9tablir que des donn\u00e9es ont bien transit\u00e9es (<a href=\"https:\/\/www.iotmining.eu\/blog\/poc-preuve-couverture-helium\/\"> les preuves de couverture<\/a> ). Ce syst\u00e8me permet de r\u00e9mun\u00e9rer les propri\u00e9taires de passerelles.<\/li><\/ul>\n\n\n\n<h2 class=\"has-extra-large-font-size\">LongFi versus WiFi <\/h2>\n\n\n\n<p>WiFi signifie \u00ab\u00a0Fid\u00e9lit\u00e9 sans fil\u00a0\u00bb et d\u00e9signe un ensemble de protocoles de communication sans fil r\u00e9gis par les normes du groupe IEEE 802.11 (ISO\/CEI 8802-11). Un r\u00e9seau Wi-Fi permet de relier par ondes radio plusieurs appareils informatiques au sein d&rsquo;un r\u00e9seau informatique afin de permettre la transmission de donn\u00e9es entre eux.<br>Le WiFi permet d&rsquo;obtenir un haut d\u00e9bit. Mais il utilise pour cela une fr\u00e9quence \u00e9lev\u00e9e de 5 GHz. <br>Hors \u00e0 une fr\u00e9quence \u00e9lev\u00e9e correspond une faible port\u00e9e car le signal rebondit sur les murs. <br>En outre le signal envoy\u00e9 doit \u00eatre puissant et consomme beaucoup d&rsquo;\u00e9nergie.<br><br>Donc des r\u00e9seaux LPWAN, pour des objets sans fil n\u00e9cessitant de petits d\u00e9bits, mais de tr\u00e8s grande port\u00e9e ont \u00e9t\u00e9 d\u00e9velopp\u00e9s. Parmi ces r\u00e9seaux on distingue LoRaWAN qui permet de construire des r\u00e9seaux priv\u00e9s.  Avec LoRaWAN un capteur \u00e0 une port\u00e9e de plus de 15 km en zone p\u00e9ri-urbaine et de plus de 2 km en ville.<br>LongFi s&rsquo;appuie sur ces r\u00e9seaux LPWAN et offre par rapports au WiFi une couverture beaucoup plus grande. <br>Long pour longue port\u00e9e et Fi pour Fid\u00e9lit\u00e9.<\/p>\n\n\n\n<h2 class=\"has-extra-large-font-size\">Helium et LongFi<\/h2>\n\n\n\n<p>Helium a con\u00e7u la technologie LongFi. LongFi est la combinaison du protocole sans fil LoRaWAN et de la blockchain Helium. La technologie Helium LongFi b\u00e9n\u00e9ficie de toutes les caract\u00e9ristiques et de tous les avantages du r\u00e9seau LoRa. Mais elle y ajoute la possibilit\u00e9 pour les propri\u00e9taires de passerelles d&rsquo;\u00eatre r\u00e9mun\u00e9r\u00e9 en crypto-monnaie HNT. <br>Helium LongFi offre \u00e9galement des capacit\u00e9s d&rsquo;itin\u00e9rance et prend en charge les transactions de micropaiement afin que les clients ne paient que sur la base de l&rsquo;utilisation du r\u00e9seau sans avoir \u00e0 d\u00e9ployer de passerelles ou de serveurs r\u00e9seau. <br>La technologie Helium LongFi\u2122 est int\u00e9gr\u00e9e \u00e0 une passerelle LoRaWAN compatible pour cr\u00e9er un hotspot de r\u00e9seau Helium. Helium a d&rsquo;abord publi\u00e9 la technologie en open source, pour que les fabricants tiers puissent construire des hotspots compatibles. L&rsquo;utilisation de la technologie a ensuite \u00e9t\u00e9 restreinte aux fournisseurs agr\u00e9\u00e9s par le biais de la certification HIP19.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un protocole d\u00e9velopp\u00e9 pour le r\u00e9seau H\u00e9lium Pour cr\u00e9er un nouveau type de r\u00e9seau, The People&rsquo;s Network, Helium a d\u00fb imaginer un nouveau protocole sans fil appel\u00e9 LongFi. En effet LongFi est un protocole con\u00e7u sp\u00e9cialement pour un r\u00e9seau sans fil qui connecte des milliers d&rsquo;objets de l&rsquo;Internet \u00e0 une passerelle associ\u00e9e au r\u00e9seau Helium.&hellip; <a class=\"more-link\" href=\"https:\/\/www.iotmining.eu\/blog\/longfi-helium\/\">Poursuivre la lecture <span class=\"screen-reader-text\">LongFi by Helium<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":[],"categories":[1],"tags":[10,9],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LongFi by Helium - L&#039;actualit\u00e9 du minage IoT<\/title>\n<meta name=\"description\" content=\"La technologie Helium LongFi permet aux propri\u00e9taires de passerelles LoRaWAN d&#039;\u00eatre r\u00e9mun\u00e9r\u00e9 en crypto-monnaie Helium (HNT).\" \/>\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.iotmining.eu\/blog\/longfi-helium\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LongFi by Helium - 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