{"id":762,"date":"2026-05-12T15:21:03","date_gmt":"2026-05-12T17:21:03","guid":{"rendered":"https:\/\/sites.usp.br\/lvnt\/?page_id=762"},"modified":"2026-05-12T15:21:03","modified_gmt":"2026-05-12T17:21:03","slug":"rov-2","status":"publish","type":"page","link":"https:\/\/sites.usp.br\/lvnt\/en\/rov-2\/","title":{"rendered":"ROV"},"content":{"rendered":"<h2><strong>LVNT ROVs<\/strong><\/h2>\n<p style=\"text-align: justify;\">Remotely Operated Underwater Vehicles (ROVs) have been developed by the Laboratory of Unmanned Vehicles at the University of S\u00e3o Paulo since 2014, building upon the results obtained from research on Autonomous Underwater Vehicles (AUVs), which the same laboratory has been developing since 2008.<\/p>\n<p style=\"text-align: justify;\">The first ROV prototype, Mand\u00ed, was completed in 2014 for the inspection of turbines in hydroelectric power plants. Improvements to the original vehicle design were implemented in 2017, especially regarding the new embedded electronics and firmware, which allow the vehicle to be adapted to a wider range of payloads and applications. A qualitative laser-based dimensional measurement system was also added. As a result, the \u201cMand\u00ed II\u201d ROV was developed.<\/p>\n<p style=\"text-align: justify;\">For the development of a new ROV, named \u201cDourado\u201d, much more powerful thrusters than those used in Mand\u00ed II are being developed. This will enable the construction of an ROV with a level of suitability comparable to current commercial inspection vehicles used in offshore inspection operations.<\/p>\n<h4><strong>ROV Mand\u00ed II<\/strong><\/h4>\n<ul>\n<li>Approximate weight out of water: 30 kg<\/li>\n<li>Dimensions: 0.57 m (L) x 0.38 m (W) x 0.38 m (H)<\/li>\n<li><strong>Maximum operating depth: 50 m<\/strong><\/li>\n<li>Umbilical cable length: 70 m<\/li>\n<li>Umbilical diameter: 0.018 m<\/li>\n<li>Umbilical weight\/buoyancy ratio: Neutral<\/li>\n<li>Propulsion and maneuvering: 6 thrusters &#8211; 4 horizontal and 2 vertical<\/li>\n<li>Forward bollard thrust (diamond configuration): 18 kgf<\/li>\n<li>Reverse bollard thrust: 12 kgf<\/li>\n<li>Submergence bollard thrust: 14 kgf<\/li>\n<li>Emergence bollard thrust: 6 kgf<\/li>\n<li>Power supply: 220 VAC, maximum power of 3.3 kW<\/li>\n<li><strong>Camera: FULL HD resolution (1920\u00d71080) at 30 fps with night vision, tilt control with a range of 60<sup>o<\/sup><\/strong><\/li>\n<li>Lighting: LEDs with a total power of 9 W<\/li>\n<li><strong>Navigation: Attitude and Heading Reference System (AHRS) and depth sensor<\/strong><\/li>\n<li><strong>Obstacle detection sonar: 360<sup>o<\/sup> scanning<\/strong><\/li>\n<li>Laser system for qualitative geometric measurement<\/li>\n<li><strong>Operator interface: Toughbook with screens for forward and rear cameras, sonar, propulsion power indicators, depth measurements, angular position and attitude indicators, as well as flooding alerts<\/strong><\/li>\n<li>Embedded processing system:\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Signal processing resources and computational power with 90 MIPS, 32 kB of RAM, and 128 kB of FLASH memory<\/li>\n<li>Digital communication interfaces: 2 x CAN, 2 x EIA RS-232, 1 x EIA RS-422, 1 x Ethernet, 1 x SPI, 1 x I2C<\/li>\n<li>3 analog voltage\/current inputs<\/li>\n<li>2 analog outputs -10V\/+10V<\/li>\n<li>4 digital outputs 5V\/12V<\/li>\n<li>3 digital inputs<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><a href=\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/mandi.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-401 aligncenter\" src=\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/mandi.png\" alt=\"\" width=\"661\" height=\"589\" srcset=\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/mandi.png 661w, https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/mandi-300x267.png 300w, https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/mandi-400x356.png 400w\" sizes=\"auto, (max-width: 661px) 100vw, 661px\" \/><\/a><\/p>\n<p style=\"text-align: center;\"><strong>ROV Mand\u00ed II<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3><strong>Operation Footage<\/strong><\/h3>\n<div class=\"wp-playlist wp-video-playlist wp-playlist-light\">\n\t\t<video controls=\"controls\" preload=\"none\" width=\"618\"\n\t\t height=\"340\"\t><\/video>\n\t<div class=\"wp-playlist-next\"><\/div>\n\t<div class=\"wp-playlist-prev\"><\/div>\n\t<noscript>\n\t<ol>\n\t\t<li><a href='https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/ROV-Mandi-II-Sistema-de-filmagem-de-planctons.mp4'>ROV Mand\u00ed II - Sistema de filmagem de pl\u00e2nctons<\/a><\/li><li><a href='https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/ROV-Mandi-II-Inspecao-casco-do-Veliger-II.mp4'>ROV Mand\u00ed II - Inspe\u00e7\u00e3o casco do Veliger II<\/a><\/li><li><a href='https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/08\/ROV-Mandi-II-Manobrando-o-AURI-submerso.mp4'>ROV Mand\u00ed II - Manobrando o AURI submerso<\/a><\/li>\t<\/ol>\n\t<\/noscript>\n\t<script type=\"application\/json\" class=\"wp-playlist-script\">{\"type\":\"video\",\"tracklist\":true,\"tracknumbers\":true,\"images\":false,\"artists\":true,\"tracks\":[{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/ROV-Mandi-II-Sistema-de-filmagem-de-planctons.mp4\",\"type\":\"video\/mp4\",\"title\":\"ROV Mand\\u00ed II - Sistema de filmagem de pl\\u00e2nctons\",\"caption\":\"\",\"description\":\"\",\"meta\":{\"length_formatted\":\"0:53\"},\"dimensions\":{\"original\":{\"width\":720,\"height\":1280},\"resized\":{\"width\":618,\"height\":1099}},\"image\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64},\"thumb\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64}},{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/07\/ROV-Mandi-II-Inspecao-casco-do-Veliger-II.mp4\",\"type\":\"video\/mp4\",\"title\":\"ROV Mand\\u00ed II - Inspe\\u00e7\\u00e3o casco do Veliger II\",\"caption\":\"\",\"description\":\"\",\"meta\":{\"length_formatted\":\"1:04\"},\"dimensions\":{\"original\":{\"width\":640,\"height\":480},\"resized\":{\"width\":618,\"height\":464}},\"image\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64},\"thumb\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64}},{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-content\/uploads\/sites\/346\/2021\/08\/ROV-Mandi-II-Manobrando-o-AURI-submerso.mp4\",\"type\":\"video\/mp4\",\"title\":\"ROV Mand\\u00ed II - Manobrando o AURI submerso\",\"caption\":\"\",\"description\":\"\",\"meta\":{\"length_formatted\":\"2:09\"},\"dimensions\":{\"original\":{\"width\":640,\"height\":352},\"resized\":{\"width\":618,\"height\":340}},\"image\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64},\"thumb\":{\"src\":\"https:\/\/sites.usp.br\/lvnt\/wp-includes\/images\/media\/video.svg\",\"width\":48,\"height\":64}}]}<\/script>\n<\/div>\n\t\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LVNT ROVs Remotely Operated Underwater Vehicles (ROVs) have been developed by the Laboratory of Unmanned Vehicles at the University of S\u00e3o Paulo since 2014, building upon the results obtained from research on Autonomous Underwater Vehicles (AUVs), which the same laboratory has been developing since 2008. The first ROV prototype, Mand\u00ed, was completed in 2014 for<a href=\"https:\/\/sites.usp.br\/lvnt\/en\/rov-2\/\">[&#8230;]<\/a><\/p>\n","protected":false},"author":25293,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-762","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/pages\/762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/users\/25293"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/comments?post=762"}],"version-history":[{"count":1,"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/pages\/762\/revisions"}],"predecessor-version":[{"id":763,"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/pages\/762\/revisions\/763"}],"wp:attachment":[{"href":"https:\/\/sites.usp.br\/lvnt\/wp-json\/wp\/v2\/media?parent=762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}