{"id":1918,"date":"2023-10-03T09:16:44","date_gmt":"2023-10-03T09:16:44","guid":{"rendered":"https:\/\/www.enterra.sk\/spraying-drones-in-switzerland\/"},"modified":"2023-11-09T16:06:51","modified_gmt":"2023-11-09T16:06:51","slug":"spraying-drones-in-switzerland","status":"publish","type":"post","link":"https:\/\/www.enterra.sk\/en\/spraying-drones-in-switzerland\/","title":{"rendered":"Spraying drones in Switzerland"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-1024x683.jpg\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1910\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-1024x683.jpg 1024w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-300x200.jpg 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-768x512.jpg 768w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-429x286.jpg 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-885x590.jpg 885w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2-600x400.jpg 600w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-2.jpg 1379w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><p>In Switzerland, a &ldquo;National Standard Scenario&rdquo; has been developed for unmanned aerial vehicles (or drones) for spraying. This &ldquo;scenario&rdquo; contains a number of important points that must of course be fulfilled in order for drones to be used for the application.<\/p><ul class=\"wp-block-list\">\n<li>The type of drone must be approved by Agroscope for &ldquo;ground application&rdquo; and each drone must pass sprayer testing through the Agroscope company<\/li>\n\n\n\n<li>A company operating a drone must have a &ldquo;Specific Operations Risk Assessment&rdquo; (SORA) approved by the Federal Civil Aviation Authority.<\/li>\n<\/ul><p>After 2025: Spraying drones will need a permit from the Federal Civil Aviation Authority under SORA or EU-PDRA under (EU) 2019\/947.\r\nAccording to current information, around 100 drones are currently being used for spraying in Switzerland.<\/p><p>The approval and testing process that each type of drone has to go through with the Agroscope organisation is a set of many activities carried out with these drones. (The DJI Agras T30 drone, for example, has passed this testing and is authorized to work)\r\nTo begin with, the test criteria for the homologation of these drones are set, namely:<\/p><ol class=\"wp-block-list\" type=\"1\" start=\"1\">\n<li>The sprinkler system shall comply with the principles of ISO 16122<\/li>\n\n\n\n<li>For lateral distribution of spray liquid, the coefficient of variation must be <\/li>\n\n\n\n<li>Accuracy of automatic flight paths +\/- 50cm<\/li>\n<\/ol><h2 class=\"wp-block-heading\">Standard controls for the spray system (ISO 16122)<\/h2><p>One of the main parts of Agroscope&rsquo;s testing is a standard check of the technology and the spray system. This consists of several points such as:<\/p><ul class=\"wp-block-list\">\n<li>Available filters<\/li>\n\n\n\n<li>Nozzle dripping after stopping spraying<\/li>\n\n\n\n<li>Nozzle flow<\/li>\n\n\n\n<li>Indication of flow rates or pressure<\/li>\n\n\n\n<li>Leaks<\/li>\n\n\n\n<li>Weight&hellip;<\/li>\n<\/ul><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1.jpg\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1934\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1.jpg 1024w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1-300x168.jpg 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1-768x431.jpg 768w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1-429x241.jpg 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-2-1024x575-1-600x337.jpg 600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">obr &#269;.2<\/figcaption><\/figure><h2 class=\"wp-block-heading\">Spray liquid transverse distribution<\/h2><p>This is being examined on a 6m x 3m &ldquo;Sampler&rdquo; (see Figure 3). The principle is to control the precise dosing from all nozzles (see Figure 4) while hovering continuously above the &lsquo;Sampler&rsquo; at a height of 2.5 m<\/p><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1.png\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1936\" width=\"841\" height=\"649\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1.png 722w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-300x231.png 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-429x331.png 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture1-600x463.png 600w\" sizes=\"auto, (max-width: 841px) 100vw, 841px\" \/><figcaption class=\"wp-element-caption\">obr &#269;.3<\/figcaption><\/figure><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-3.jpg\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1938\" width=\"840\" height=\"561\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-3.jpg 714w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-3-300x200.jpg 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-3-429x287.jpg 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture2-3-600x401.jpg 600w\" sizes=\"auto, (max-width: 840px) 100vw, 840px\" \/><figcaption class=\"wp-element-caption\">obr &#269;.4<\/figcaption><\/figure><h2 class=\"wp-block-heading\">Influence of flight height on distribution<\/h2><p>Transverse distribution at 1 to 2.5 m flight height (see Graph 1)<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"910\" height=\"546\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4.png\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1943\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4.png 910w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4-300x180.png 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4-768x461.png 768w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4-429x257.png 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture4-600x360.png 600w\" sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><figcaption class=\"wp-element-caption\">graf &#269;.1<\/figcaption><\/figure><p>At heights of 1m and below, no suitable distribution occurs\r\n2.5 &ndash; 3m provides much better distribution (less influence of individual propellers and more homogeneous airflow)<\/p><h2 class=\"wp-block-heading\">Transverse distribution with different nozzle types and different measurement methods<\/h2><p>In this testing, 3 measurement methods were used:<\/p><ul class=\"wp-block-list\">\n<li>Patternator<\/li>\n\n\n\n<li>Tracer and photometric analysis<\/li>\n\n\n\n<li>Water-sensitive paper<\/li>\n<\/ul><p>And 3 types of nozzles:<\/p><ul class=\"wp-block-list\">\n<li>Teejet XR<\/li>\n\n\n\n<li>Teejet TXA<\/li>\n\n\n\n<li>Lechler IDK<\/li>\n<\/ul><p>Testing showed that there were no significant differences between the methods (see Figure 2)<\/p><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"269\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5.png\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1948\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5.png 940w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5-300x86.png 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5-768x220.png 768w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5-429x123.png 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture5-600x172.png 600w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/figure><figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"539\" height=\"317\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture6.png\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1950\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture6.png 539w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture6-300x176.png 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture6-429x252.png 429w\" sizes=\"auto, (max-width: 539px) 100vw, 539px\" \/><figcaption class=\"wp-element-caption\">graf &#269;.2<\/figcaption><\/figure><h2 class=\"wp-block-heading\">Flight path accuracy<\/h2><p>In this testing, the drone flies according to predefined routes (simulating a field, 3 bands) and has an additional RTK-GNSS data logger attached to it (see Figure 5) to measure the deviation of the defined route.\r\n\r\nAccuracy achieved in general (see Figure 3):<\/p><ul class=\"wp-block-list\">\n<li>Values are within 50cm<\/li>\n\n\n\n<li>50% of the values +\/- 10cm<\/li>\n<\/ul><figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7.jpg\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1952\" width=\"833\" height=\"474\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7.jpg 832w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7-300x171.jpg 300w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7-768x437.jpg 768w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7-429x244.jpg 429w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture7-600x341.jpg 600w\" sizes=\"auto, (max-width: 833px) 100vw, 833px\" \/><figcaption class=\"wp-element-caption\">obr &#269;.5<\/figcaption><\/figure><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture8.png\" alt=\"Spraying drones in Switzerland\" class=\"wp-image-1954\" width=\"470\" title=\"Spraying drones in Switzerland\" srcset=\"https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture8.png 378w, https:\/\/www.enterra.sk\/wp-content\/uploads\/2023\/10\/Picture8-300x213.png 300w\" sizes=\"(max-width: 378px) 100vw, 378px\" \/><figcaption class=\"wp-element-caption\">graf &#269;.3<\/figcaption><\/figure>\n<\/div><h2 class=\"wp-block-heading\">Conclusion<\/h2><p>In Switzerland, drones have found their place and application especially in vineyards with steep slopes, which has been greatly helped by Agroscope and the Federal Civil Aviation Authority.\r\nThe homologation and testing of sprayers started in Switzerland 5 years ago, which has also resulted in many positive responses to the drones themselves.\r\nThe use of drones has shown several advantages in certain cases, which is why more than 100 drones are currently flying in Switzerland.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Switzerland, a &#8220;National Standard Scenario&#8221; has been developed for unmanned aerial vehicles (or drones) for spraying. This &#8220;scenario&#8221; contains a number of important points that must of course be fulfilled in order for drones to be used for the application. After 2025: Spraying drones will need a permit from the Federal Civil Aviation Authority [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1911,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[],"class_list":["post-1918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Spraying drones in Switzerland - Enterra<\/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:\/\/www.enterra.sk\/en\/spraying-drones-in-switzerland\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spraying drones in Switzerland - Enterra\" \/>\n<meta property=\"og:description\" content=\"In Switzerland, a &#8220;National Standard Scenario&#8221; has been developed for unmanned aerial vehicles (or drones) for spraying. This &#8220;scenario&#8221; contains a number of important points that must of course be fulfilled in order for drones to be used for the application. 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This &#8220;scenario&#8221; contains a number of important points that must of course be fulfilled in order for drones to be used for the application. 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