{"id":644,"date":"2019-12-31T22:14:24","date_gmt":"2019-12-31T22:14:24","guid":{"rendered":"http:\/\/james-batchelor.com\/?p=644"},"modified":"2019-12-31T22:15:33","modified_gmt":"2019-12-31T22:15:33","slug":"automated-timelapse-2019-update","status":"publish","type":"post","link":"https:\/\/james-batchelor.com\/index.php\/2019\/12\/31\/automated-timelapse-2019-update\/","title":{"rendered":"Automated Timelapse: 2019 Update"},"content":{"rendered":"\n<p>I like this time of year, a chance to reflect on the last 12 months and take stock of accomplishments and realise the achievements. And something I like to gauge a success on is the longevity of a solution, and a time-lapse comparison 6 months apart is seemingly my <a href=\"https:\/\/james-batchelor.com\/index.php\/2017\/12\/31\/automated-timelapse-update\/\">go to example<\/a>.<\/p>\n\n\n\n<p>To elaborate on this achievement, earlier this year was the setup of a <a href=\"https:\/\/james-batchelor.com\/index.php\/2019\/06\/29\/motioneye-cent-os-cctv-server\/\">homebrew CCTV solution<\/a> using an array of Raspberry Pi\u2019s with cameras, and a VM Cent OS server acting as a PVR host. A <a href=\"https:\/\/james-batchelor.com\/index.php\/2019\/09\/21\/motioneye-timelapse-capture\/\">surplus Pi W Zero<\/a> was pointed at the hills and used as a time-lapse experiment.<\/p>\n\n\n\n<p>The real achievement is that since its conception in early June,\nit has been stable enough to run in the background, capturing footage for such an\noccasion.<\/p>\n\n\n\n<p>So here I present my latest time-lapse, a split screen video on the difference between a June day and a December day:<\/p>\n\n\n\n<figure><iframe loading=\"lazy\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/pQDMikqogyg\" allowfullscreen=\"\"><\/iframe><\/figure>\n\n\n\n<!--more-->\n\n\n\n<p>With time a solution also brings some observations and learning\nopportunities that would have been hard to imagine on conception:<\/p>\n\n\n\n<p><strong>Storage Capacity:<\/strong> In hindsight it was wise to start this project in June and during the summer solstice of the northern hemisphere. The maximised daylight hours created the most capture data stored to disk; therefore, the retention times of footage could be set to ensure the disk does not reach capacity.<\/p>\n\n\n\n<p>While this works for MotionEye\u2019s capture settings, the time-lapse\nscript has been able to run without capacity constraints, so the 83GB (on a 3TB\ndisk) will need to be moved \/ deleted off the disk as the nights grow longer to\navoid exhaustion of storage space.<\/p>\n\n\n\n<p><strong>Camera Movement:<\/strong> During its conception, an elegant solution to create a makeshift mount for the camera was to fashion some bell wire (single core insulated wire) from the mount points of the Pi to the mount points of the camera, twisted in-between to add rigidity.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/james-batchelor.com\/wp-content\/uploads\/2019\/12\/20191231_091336_1034-1024x768.jpg\" alt=\"\" class=\"wp-image-645\" srcset=\"https:\/\/james-batchelor.com\/wp-content\/uploads\/2019\/12\/20191231_091336_1034.jpg 1024w, https:\/\/james-batchelor.com\/wp-content\/uploads\/2019\/12\/20191231_091336_1034-300x225.jpg 300w, https:\/\/james-batchelor.com\/wp-content\/uploads\/2019\/12\/20191231_091336_1034-768x576.jpg 768w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p>What I didn\u2019t account for was the effect heat would have on twisted\nwire, this was apparent in the summer but seemed organic as the movement was in\nline with the temperature fluctuations of a normal day. However unforeseen was the\nwinter and with that the part my central heating and radiators would manipulate\nthe cameras position.<\/p>\n\n\n\n<p>The combination of the radiator below the camera and the heating\nset on a timer resulted in large skews of the camera\u2019s position, to the point where\nyou could tell when the heating was on and off during the day. As a result, the\nfootage used for winter was recorded while I wasn\u2019t home and so the heating was\noff.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I like this time of year, a chance to reflect on the last 12 months and take stock of accomplishments and realise the achievements. And something I like to gauge a success on is the longevity of a solution, and a time-lapse comparison 6 months apart is seemingly my go to example. To elaborate on &hellip; <a href=\"https:\/\/james-batchelor.com\/index.php\/2019\/12\/31\/automated-timelapse-2019-update\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Automated Timelapse: 2019 Update&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5],"tags":[163,261,262,263,63,155],"class_list":["post-644","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi","category-servers","tag-cctv","tag-motioneye","tag-motioneye-os","tag-pi","tag-raspberry-pi","tag-timelapse"],"_links":{"self":[{"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/posts\/644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/comments?post=644"}],"version-history":[{"count":1,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/posts\/644\/revisions"}],"predecessor-version":[{"id":646,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/posts\/644\/revisions\/646"}],"wp:attachment":[{"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/media?parent=644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/categories?post=644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/james-batchelor.com\/index.php\/wp-json\/wp\/v2\/tags?post=644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}