{"id":261,"date":"2022-08-24T09:48:46","date_gmt":"2022-08-24T07:48:46","guid":{"rendered":"http:\/\/ivangavriloff.com\/?p=261"},"modified":"2022-08-24T09:48:46","modified_gmt":"2022-08-24T07:48:46","slug":"piece-46","status":"publish","type":"post","link":"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-46\/","title":{"rendered":"Pi\u00e8ce #46"},"content":{"rendered":"\n

Les GPS auront une pr\u00e9cision de 30 centim\u00e8tres<\/a><\/h4>\n\n\n\n

\u2013 Clubic.com 2018 \u2013<\/em><\/p>\n\n\n\n

La pr\u00e9cision des GPS des smartphones laisse parfois \u00e0 d\u00e9sirer : certains services nous placent dans une rue adjacente \u00e0 celle o\u00f9 l’on se trouve, ce qui ne manque pas de cr\u00e9er, parfois, des itin\u00e9raires loufoques. Un probl\u00e8me g\u00e9n\u00e9ralement temporaire puisque le GPS retrouve assez rapidement ses esprits mais qui peut n\u00e9anmoins s’av\u00e9rer probl\u00e9matique dans certaines situations.<\/p>\n\n\n\n

Si vous pensiez que c’\u00e9tait la faute de votre smartphone, vous vous trompiez : c’est en r\u00e9alit\u00e9 la faute de la puce GPS qu’il int\u00e8gre et qui n’est pas aussi pr\u00e9cise qu’on le croit.<\/p>\n\n\n\n

Une pr\u00e9cision de 30 centim\u00e8tres gr\u00e2ce \u00e0 Broadcom ?<\/p>\n\n\n\n

Les puces GPS actuellement utilis\u00e9es sur le march\u00e9 des smartphones, ont une pr\u00e9cision relativement faible : environ 5 m\u00e8tres. De fait, le smartphone n’est localis\u00e9 que dans un rayon de 5 m\u00e8tres par rapport \u00e0 l’endroit o\u00f9 il se trouve et c’est le logiciel qui effectue un ajustement. Si le smartphone d\u00e9tecte que vous vous d\u00e9placez en voiture il va, logiquement, vous localiser sur une route plut\u00f4t qu’\u00e0 l’int\u00e9rieur d’un b\u00e2timent.<\/p>\n\n\n\n

Le constructeur de puces Broadcom a annonc\u00e9 une nouvelle puce, baptis\u00e9e BCM47755, qui va am\u00e9liorer cette pr\u00e9cision. De 5 m\u00e8tres la pr\u00e9cision tombera \u00e0 30 centim\u00e8tres. Une v\u00e9ritable \u00e9volution pour les particuliers puisque ce type de pr\u00e9cision \u00e9tait jusque-l\u00e0 r\u00e9serv\u00e9 aux professionnels. Brodacom a, en r\u00e9alit\u00e9, r\u00e9ussi \u00e0 d\u00e9velopper la premi\u00e8re puce grand public utilisant les deux types de fr\u00e9quences GPS disponibles.<\/p>\n\n\n\n

Des puces embarqu\u00e9es sur des smartphones d\u00e8s 2018 ?<\/p>\n\n\n\n

Les puces GPS des smartphones actuels utilisent les fr\u00e9quences L1 mais la nouvelle puce de Broadcom utilisera \u00e9galement les fr\u00e9quences L5. Elles ont une meilleure bande passante et sont moins sujettes aux interf\u00e9rences ce qui permet une forte am\u00e9lioration de la pr\u00e9cision. De plus, la puce consomme moins de batterie, environ la moiti\u00e9 selon le constructeur, ce qui ne manquera pas d’am\u00e9liorer l’autonomie des appareils.<\/p>\n\n\n\n

L’entreprise annonce des smartphones embarquant sa puce BCM47755 d\u00e8s 2018 sans toutefois d\u00e9voiler quelles entreprises pourraient l’int\u00e9grer.<\/p>\n","protected":false},"excerpt":{"rendered":"

Les GPS auront une pr\u00e9cision de 30 centim\u00e8tres \u2013 Clubic.com 2018 \u2013 La pr\u00e9cision des GPS des smartphones laisse parfois \u00e0 d\u00e9sirer : certains services nous placent dans une rue adjacente \u00e0 celle o\u00f9 l’on se trouve, ce qui ne manque pas de cr\u00e9er, parfois, des itin\u00e9raires loufoques. Un probl\u00e8me g\u00e9n\u00e9ralement temporaire puisque le GPS… Lire la suite »Pi\u00e8ce #46<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-261","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"\nPi\u00e8ce #46 - Ivan Gavriloff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-46\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pi\u00e8ce #46 - Ivan Gavriloff\" \/>\n<meta property=\"og:description\" content=\"Les GPS auront une pr\u00e9cision de 30 centim\u00e8tres \u2013 Clubic.com 2018 \u2013 La pr\u00e9cision des GPS des smartphones laisse parfois \u00e0 d\u00e9sirer : certains services nous placent dans une rue adjacente \u00e0 celle o\u00f9 l’on se trouve, ce qui ne manque pas de cr\u00e9er, parfois, des itin\u00e9raires loufoques. 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