{"id":30491,"date":"2019-10-31T21:35:51","date_gmt":"2019-10-31T18:35:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu\/"},"modified":"2019-10-31T21:35:51","modified_gmt":"2019-10-31T18:35:51","slug":"server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","title":{"rendered":"Server u oblacima 2.0. Pokre\u0107emo server u stratosferu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Prijatelji, smislili smo novu aktivnost. Mnogi od vas se sje\u0107aju na\u0161eg pro\u0161logodi\u0161njeg zabavnog geek projekta \u201eServer u oblacima<\/a><\/noindex>\u201d: napravili smo mali server temeljen na Raspberry Pi i pokrenuli ga na balonu. <\/p>\n

\"Server<\/a><\/noindex><\/p>\n

Sada smo odlu\u010dili i\u0107i jo\u0161 dalje, odnosno vi\u0161e \u2014 \u010deka nas stratosfera!
\n<\/a><\/noindex>
\nUkratko, podsjetimo se \u0161to je bio cilj prvog projekta \u201eServer u oblacima\u201c. Server nije samo odletio na balonu, intriga je bila u tome da je ure\u0111aj bio operativan i prenosio svoju telemetriju na Zemlju. <\/p>\n

\"Server
\n
\nTo jest, svi zainteresirani mogli su u realnom vremenu pratiti putanju kretanja. Prije polijetanja, 480 ljudi ozna\u010dilo je na karti mjesta gdje bi balon mogao sletjeti.<\/p>\n

\"Server
\n
\nNaravno, u punom skladu sa zakonom Edwarda Murphyja, tokom leta glavni kanal veze putem GSM modemskog ure\u0111aja je otpao. Stoga je posadi doslovno u letu bilo potrebno pre\u0107i na rezervnu komunikaciju temeljen na LoRa<\/a><\/noindex>. Tako\u0111er, zrakoplovci su morali rije\u0161iti problem s USB kabelom koji je povezivao telemetrijski modul i Raspberry 3 \u2014 \u010dini se da se upla\u0161io visine i odbio raditi. Dobro je da su se tu problemi zavr\u0161ili i balon je uspje\u0161no sletio. Trojica sretnika \u010dije su oznake bile najbli\u017ee mjestu slijetanja osvojili su ukusne nagrade. Usput, za prvo mjesto darovali smo sudjelovanje na jedrili\u010darskoj regati AFR 2018 (Vitalik, pozdrav!). <\/p>\n

Projekt je dokazao da ideja \u201eservera u zrakoplovstvu\u201c nije toliko lud kao \u0161to se mo\u017eda \u010dini. I \u017eelimo napraviti sljede\u0107i korak prema \u201elete\u0107em podatkovnom centru\u201c: ispitati rad servera koji \u0107e se na stratosferi uzdi\u0107i na visinu od oko 30 km \u2014 u stratosferu. Lansiranje \u0107emo uskladiti s Danom kozmonautike, \u0161to zna\u010di da preostaje jako malo vremena, manje od mjesec dana. <\/p>\n

Naziv \u201eServer u oblacima 2.0\u201c nije potpuno to\u010dan, jer na toj visini ne\u0107ete prona\u0107i niti obla\u010di\u0107. Tako da projekt mo\u017eemo nazvati \u201eNadoblacni server\u201c (sljede\u0107i projekt morat \u0107emo nazvati \u201eBebo, ti si svemir!\u201c).<\/p>\n

\"Server
\n
\nKao i u prvom projektu, server \u0107e biti operativan. Ali zanimljivost je u drugom: \u017eelimo ispitati koncept slavnog Google Loon projekta i testirati samu mogu\u0107nost pru\u017eanja interneta iz stratosfere.<\/p>\n

Shema rada poslu\u017eitelja \u0107e izgledati ovako: na odredi\u0161noj stranici mo\u0107i \u0107ete slati tekstualne poruke na poslu\u017eitelj putem obrasca. Poruke \u0107e se putem HTTP protokola prenositi na ra\u010dunalo obje\u0161eno ispod stratosfera kroz dva neovisna sustava satelitske komunikacije, a to \u0107e ra\u010dunalo slati te podatke natrag na Zemlju, ali ne istim putem preko satelita, nego putem radio kanala. Na taj na\u010din \u0107emo znati da poslu\u017eitelj uop\u0107e prima podatke i da mo\u017ee dijeliti internet iz stratosfere. Tako\u0111er \u0107emo mo\u0107i izra\u010dunati postotak izgubljenih informacija \u201ena putu\u201c. Na istoj odredi\u0161noj stranici bit \u0107e prikazan grafikon leta stratosfere, na kojem \u0107e biti ozna\u010dene to\u010dke prijema svake va\u0161e poruke. Drugim rije\u010dima, mo\u0107i \u0107ete u stvarnom vremenu pratiti rutu i visinu \u201eizvan mre\u017ee\u201c poslu\u017eitelja.<\/p>\n

A za one koji ne vjeruju, koji \u0107e re\u0107i da je sve ovo namje\u0161teno, postavit \u0107emo mali ekran na brodu, na kojem \u0107e se na HTML stranici prikazivati sve poruke koje ste dobili od vas. Ekran \u0107e snimati kamera koja \u0107e u vidnom polju imati i dio horizonta. \u017delimo prenijeti video signal putem radio kanala, ali ima jedan izazov: ako bude lijepo vrijeme, video bi trebao stizati do tla ve\u0107i dio leta stratosfere, na udaljenosti od 70-100 km. U slu\u010daju obla\u010dnosti, domet prijenosa mo\u017ee pasti do 20 km. No, u svakom slu\u010daju, video \u0107e se snimati i objavit \u0107emo ga nakon \u0161to prona\u0111emo sru\u0161eni stratosfer. Usput, tra\u017eit \u0107emo ga prema signalu GPS ozna\u010diva\u010da na brodu. Prema statistikama, poslu\u017eitelj \u0107e sletjeti unutar 150 km od mjesta lansiranja.<\/p>\n

Uskoro \u0107emo detaljno objasniti kako \u0107e biti ure\u0111ena oprema korisnog tereta stratosfere i kako \u0107e sve to raditi zajedno. Tako\u0111er \u0107emo otkriti neke zanimljive detalje projekta vezane uz svemir. <\/p>\n

Kako bismo vam olak\u0161ali pra\u0107enje projekta, kao i pro\u0161le godine, osmislili smo natjecanje u kojem trebate odrediti mjesto slijetanja poslu\u017eitelja. Pobjednik, koji najpreciznije pogodi mjesto slijetanja, mo\u0107i \u0107e otputovati na Baikonur na lansiranje pilotiranog broda \u201eSoyuz MS-13\u201c 6. srpnja, a nagrada za drugo mjesto je certifikat za putovanje od na\u0161ih prijatelja s Tutu.ru. Preostalih dvadeset sudionika mo\u0107i \u0107e otputovati na grupnu ekskurziju u Zvjezdani grad u svibnju. Detalji na web stranici natjecanja<\/a><\/noindex>.<\/p>\n

Pratite novosti na blogu \ud83d\ude42
\n
Izvor: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Pokre\u0107emo poslu\u017eitelj u stratosferu | ProHoster","description":"Prijatelji, smislili smo novu akciju.","canonical_url":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hr_HR","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0421\u0435\u0440\u0432\u0435\u0440 \u0432 \u043e\u0431\u043b\u0430\u043a\u0430\u0445 2.0. \u0417\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c \u0441\u0435\u0440\u0432\u0435\u0440 \u0432 \u0441\u0442\u0440\u0430\u0442\u043e\u0441\u0444\u0435\u0440\u0443 | ProHoster","og:description":"\u0414\u0440\u0443\u0437\u044c\u044f, \u043c\u044b \u043f\u0440\u0438\u0434\u0443\u043c\u0430\u043b\u0438 \u043d\u043e\u0432\u0443\u044e \u0434\u0432\u0438\u0436\u0443\u0445\u0443.","og:url":"https:\/\/prohoster.info\/hr\/blog\/administrirovanie\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2019-10-31T18:35:51+00:00","article:modified_time":"2019-10-31T18:35:51+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"30491","title":null,"description":null,"keywords":null,"keyphrases":{"focus":[],"additional":[]},"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":"2026-01-21 01:27:19","breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-03-01 03:34:26","updated":"2026-08-11 12:50:36","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/30491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/comments?post=30491"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/posts\/30491\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media\/22489"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/media?parent=30491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/categories?post=30491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hr\/wp-json\/wp\/v2\/tags?post=30491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}