{"id":14981,"date":"2023-07-06T16:45:49","date_gmt":"2023-07-06T16:45:49","guid":{"rendered":"https:\/\/www.africa-press.net\/djibouti\/politique\/morphobot-huit-robots-en-un-seul"},"modified":"2023-07-06T16:51:43","modified_gmt":"2023-07-06T16:51:43","slug":"morphobot-huit-robots-en-un-seul","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/djibouti\/toutes-les-actualites\/morphobot-huit-robots-en-un-seul","title":{"rendered":"Morphobot, huit robots en un seul"},"content":{"rendered":"

Africa-Press – Djibouti. <\/strong><\/span>Il sait tout faire, ou presque. Voler, rouler, ramper, marcher sur quatre pattes ou se tenir debout sur deux. Appele\u0301 M4, ou Multi-Modal Mobility Morphobot, ce robot est un projet du Centre pour les syste\u0300mes et technologies autonomes, un laboratoire du California Institute of Technology (CalTech), aux Etats-Unis. Son principe-clef re\u0301side dans sa capacite\u0301 a\u0300 se transformer pour changer de comportement de locomotion, sans ajout ni suppression d\u2019accessoires ou de composants.<\/p>\n

Un drone quadricopte\u0300re en fibre de carbone<\/b><\/p>\n

Le projet a e\u0301te\u0301 pre\u0301sente\u0301 dans la revue Nature Communications fin juin 2023. Au total, il peut adopter huit comportements diffe\u0301rents, traverser des terrains pleins d\u2019obstacles ou ne\u0301gocier des pentes a\u0300 45 degre\u0301s.<\/p>\n

Concre\u0300tement, l\u2019engin se pre\u0301sente comme un drone quadricopte\u0300re en fibre de carbone pesant 5,6 kg au concept tre\u0300s familier. Mais les quatre rotors de 25 cm de diame\u0300tre peuvent pivoter et se rabattre a\u0300 la verticale, donnant alors au robot l\u2019apparence et les faculte\u0301s d\u2019un petit ve\u0301hicule a\u0300 quatre roues.<\/p>\n

Le Morphobot peut se redresser pour se tenir sur deux roues seulement<\/b><\/p>\n

S\u2019il s\u2019ave\u0300re trop haut pour passer sous un obstacle, les quatre roues peuvent pivoter en avant et en arrie\u0300re pour abaisser la taille du robot. Selon les situations, ces roues peuvent non plus servir a\u0300 rouler, justement, mais a\u0300 imiter des pattes sur lesquels la machine prend appui. Ou encore, le Morphobot peut se redresser pour se tenir sur deux roues seulement, soit totalement droit (il mesure alors 1 me\u0300tre de haut) soit en restant incline\u0301 le temps de passer un obstacle au sol. Dans ces deux cas de figure, les deux autres roues redeviennent des rotors qui maintiennent l\u2019e\u0301quilibre de la structure.<\/p>\n

C\u2019est le M4 qui de\u0301termine le comportement a\u0300 adopter en fonction du terrain. Incapable de flotter, il se met en mode drone volant pour passer une pie\u0300ce d\u2019eau par exemple. Il est dote\u0301 d\u2019un ordinateur de bord, de capteurs, dont des came\u0301ras et une centrale a\u0300 inertie pour le calcul de l\u2019orientation, et d\u2019un syste\u0300me de communication Wifi. Le robot est en effet contact avec des ordinateurs externes qui lui envoient des informations.<\/p>\n

Car il n\u2019est pas force\u0301ment en pilotage autonome : pour le test, visible dans la vide\u0301o de de\u0301monstration, ou\u0300 il franchit en volant une pie\u0300ce d\u2019eau, l\u2019engin est commande\u0301 a\u0300 distance par un ope\u0301rateur. Dans d\u2019autres situations, un dispositif de capture de mouvement lui transmet les donne\u0301es sur sa position dans l’espace pour l\u2019aider a\u0300 se piloter tout seul. Le comportement de marche, lui, est encore rustre et ne\u0301cessite d’e\u0302tre fluidifie\u0301 mais sa faisabilite\u0301 est de\u0301montre\u0301e.<\/p>\n

Pour l\u2019e\u0301quipe, ce projet a des usages e\u0301vidents en matie\u0300re de secours lors de catastrophes occasionnant des bouleversements du terrain (se\u0301ismes, inondations, e\u0301boulements …) et des dommages sur le re\u0301seau routier. Au lieu de de\u0301pe\u0302cher plusieurs robots pour explorer les lieux d\u2019un sinistre, un nombre re\u0301duit pourrait remplir l\u2019ensemble des missions.<\/p>\n

Pour plus d’informations et d’analyses sur la Djibouti<\/a>, suivez Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Djibouti. Il sait tout faire, ou presque. Voler, rouler, ramper, marcher sur quatre pattes ou se tenir debout sur deux. Appele\u0301 M4, ou Multi-Modal Mobility Morphobot, ce robot est un projet du Centre pour les syste\u0300mes et technologies autonomes, un laboratoire du California Institute of Technology (CalTech), aux Etats-Unis. Son principe-clef re\u0301side dans […]<\/p>\n","protected":false},"author":82,"featured_media":14980,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,49,50],"class_list":["post-14981","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-djibouti","tag-djibouti"],"yoast_head":"\nMorphobot, huit robots en un seul - Djibouti<\/title>\n<meta name=\"description\" content=\"Il sait tout faire, ou presque. 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