{"id":13220,"date":"2013-02-25T03:00:14","date_gmt":"2013-02-25T08:00:14","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=13220"},"modified":"2013-02-25T03:00:14","modified_gmt":"2013-02-25T08:00:14","slug":"pole-dancing-with-quadrocopters","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/13220","title":{"rendered":"Pole Dancing \u2014 With Quadrocopters"},"content":{"rendered":"<p><a href=\"http:\/\/robohub.org\/video-throwing-and-catching-an-inverted-pendulum-with-quadrocopters\/\">Video: Throwing and catching an inverted pendulum \u2013 with quadrocopters<\/a><\/p>\n<blockquote><p>As you can see in the video embedded above, at the end of Dario\u2019s thesis two quadrocopters could successfully throw and catch a pendulum.<\/p>\n<p>Many of the key challenge of this work were caused by the highly dynamic nature of the demonstration. For example, the total time between a throw and a catch is a mere 0.65 seconds, which is a very short time to move to, and come to full rest at, a catching position.<\/p>\n<p>Another key challenge was the demonstration\u2019s high cost of failure: a failed catch typically resulted in the pendulum hitting a rotor blade, with very little chance for the catching quadrocopter to recover. A crashed quadrocopter not only entailed repairs (e.g., changing a propeller), but also meant recalibration of the vehicle to re-determine its operating parameters (e.g., actual center of mass, actual thrust produced by propellors) and restarting the learning algorithms.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Video: Throwing and catching an inverted pendulum \u2013 with quadrocopters As you can see in the video embedded above, at the end of Dario\u2019s thesis two quadrocopters could successfully throw and catch a pendulum. Many of the key challenge of &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/13220\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53,63],"tags":[],"class_list":["post-13220","post","type-post","status-publish","format-standard","hentry","category-tech","category-video"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/13220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=13220"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/13220\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=13220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=13220"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=13220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}