{"id":30490,"date":"2019-10-31T21:35:49","date_gmt":"2019-10-31T18:35:49","guid":{"rendered":"https:\/\/prohoster.info\/blog\/server-v-oblakah-itogi-proekta\/"},"modified":"2019-10-31T21:35:49","modified_gmt":"2019-10-31T18:35:49","slug":"server-v-oblakah-itogi-proekta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/server-v-oblakah-itogi-proekta","title":{"rendered":"Server v cloudoch: Z\u00e1ver projektu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Priatelia, je \u010das zhrn\u00fa\u0165 v\u00fdsledky n\u00e1\u0161ho projektov\u00e9ho s\u00fa\u0165a\u017ee \u201eServer v oblak\u00e1ch\u201c. Ak niekto nevie, spustili sme z\u00e1bavn\u00fd geek projekt: urobili sme mal\u00fd server na Raspberry Pi 3, pripojili sme k nemu GPS sledova\u010d a senzory, a cel\u00e9 toto vybavenie sme umiestnili na bal\u00f3n a zverili sme ho sil\u00e1m pr\u00edrody. Kde sa bal\u00f3n pristane, to vedia jedine bohovia vetra a patroni vzduchoplavby, preto sme navrhli v\u0161etk\u00fdm z\u00fa\u010dastnen\u00fdm umiestni\u0165 body na mape \u2014 t\u00ed, ktor\u00fdch body sa ocitn\u00fa najbli\u017e\u0161ie k skuto\u010dn\u00e9mu miestu prist\u00e1tia, z\u00edskaj\u00fa \u201elahodn\u00e9\u201c ceny.<\/p>\n

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

Tak\u017ee n\u00e1\u0161 server u\u017e letel do oblakov a je \u010das zhrn\u00fa\u0165 v\u00fdsledky na\u0161ej s\u00fa\u0165a\u017ee.
\n<\/a><\/noindex>
\nOdkazy na predch\u00e1dzaj\u00face publik\u00e1cie o s\u00fa\u0165a\u017ei<\/b><\/p>\n

    \n
  1. Pr\u00edspevok o regate<\/a><\/noindex> (cena za prv\u00e9 miesto v na\u0161ej s\u00fa\u0165a\u017ei \u2014 \u00fa\u010das\u0165 na plachetnickej regate AFR (Another F*cking Race)<\/a><\/noindex>, ktor\u00e1 sa uskuto\u010dn\u00ed od 3. do 10. novembra v Sar\u00f3nickom z\u00e1live (Gr\u00e9cko) spolu s t\u00edmom RUVDS a Habrom.<\/li>\n
  2. Ako sme robili \u201ehardv\u00e9rov\u00fa \u010das\u0165<\/a><\/noindex>\u201c projektu \u2014 pre milovn\u00edkov geek porna, s podrobnos\u0165ami a anal\u00fdzou k\u00f3du.<\/li>\n
  3. Megapost o projekte<\/a><\/noindex> s \u00fapln\u00fdm popisom.<\/li>\n
  4. Webov\u00e1 str\u00e1nka projektu<\/noindex>, na ktorom bolo mo\u017en\u00e9 sledova\u0165 pohyb bal\u00f3nu a telemetriu v re\u00e1lnom \u010dase.<\/li>\n
  5. Report\u00e1\u017e<\/a><\/noindex> z miesta vypustenia bal\u00f3nu.<\/li>\n<\/ol>\n

    A sk\u00fasenos\u0165, syn \u0165a\u017ek\u00fdch ch\u00fdb<\/h2>\n

    \nAko si pam\u00e4t\u00e1te, pl\u00e1novali sme vysiela\u0165 \u00fadaje zo servera cez GSM modem. To bol hlavn\u00fd kan\u00e1l prenosu inform\u00e1ci\u00ed. Zdalo sa n\u00e1m, \u017ee sme predv\u00eddali ak\u00e9ko\u013evek ne\u010dakanosti s pokryt\u00edm mobilnej siete, ke\u010f sme do modemu vlo\u017eili dve SIM karty oper\u00e1torov s najlep\u0161\u00edm pokryt\u00edm v Dmitrovskom okrese. Navy\u0161e mal modem dobr\u00fa v\u0161esmerov\u00fa ant\u00e9nu. Ale, ako sa hovor\u00ed, \u010dlovek predpoklad\u00e1, a oper\u00e1tori sa prisp\u00f4sobuj\u00fa. Ke\u010f sa bal\u00f3n dostal vy\u0161\u0161ie ako 500 metrov (v\u00fd\u0161ka Ostankinskej telev\u00edznej ve\u017ee), mobiln\u00fd sign\u00e1l \u00faplne zmizol. <\/p>\n

    \"Server
    \n
    \nPrem\u00fd\u0161\u013eaj\u00fac sp\u00e4tne, to sa zd\u00e1 by\u0165 o\u010dividn\u00e9, ale na to je zadn\u00e9 \u010d\u00edslo. Samozrejme, ant\u00e9ny mobilnej siete s\u00fa ur\u010den\u00e9 na pokrytie na zemi, nie vo vzduchu. Ich v\u00fdse\u010de \u201ezasahuj\u00fa\u201c pozd\u013a\u017e reli\u00e9fu a do oblakov \u201enesvietia\u201c. Tak\u017ee mobiln\u00e1 komunik\u00e1cia vo v\u00fd\u0161ke pol kilometra a vy\u0161\u0161ie \u2014 to je len n\u00e1hodn\u00e9 odrazenie lupienka nejakej ant\u00e9ny. Tak\u017ee polovica trasy komunik\u00e1cie s bal\u00f3nom prostredn\u00edctvom mobiln\u00e9ho kan\u00e1la neexistovala. A pri klesan\u00ed, ke\u010f sme sa dostali pod 500 metrov, mobiln\u00fd sign\u00e1l op\u00e4\u0165 o\u017eil.<\/p>\n

    Ak\u00fdm sp\u00f4sobom sme z\u00edskavali telemetriu zo \u0161a\u0161a? Za to v\u010fa\u010d\u00edme duplikovan\u00e9mu kan\u00e1lu prenosu d\u00e1t. Nain\u0161talovali sme na \u0161a\u0161a s\u00fapravu LoRa-r\u00e1diovej komunik\u00e1cie<\/a><\/noindex>, pracuj\u00facu na frekvencii 433 MHz. <\/p>\n

    \"Server
    \n
    \nJeho prenosov\u00e1 kapacita nie je ve\u013ek\u00e1, ale na na\u0161e \u00falohy to sta\u010dilo. \u010co sa t\u00fdka ur\u010dovania polohy \u0161a\u0161a pomocou GPS, s t\u00fdm neboli \u017eiadne probl\u00e9my, tracker fungoval hladko.<\/p>\n

    \"Server
    \n
    \nA po\u010das letu sa uk\u00e1zalo, \u017ee USB k\u00e1bel, ktor\u00fd sp\u00e1jal modul telemetrie s Raspberry Pi 3, bol vadn\u00fd. Na zemi fungoval, ale vo vzduchu zlyhal. Mo\u017eno sa b\u00e1l v\u00fd\u0161ky. Chybu k\u00e1bla sme zistili a\u017e po prist\u00e1t\u00ed. Na\u0161\u0165astie sme dok\u00e1zali nastavi\u0165 prenos d\u00e1t priamo z modulu telemetrie cez LoRa.<\/p>\n

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

    A o dobr\u00fdch spr\u00e1vach<\/h2>\n

    \n\u0160\u0165astie sa usmialo na u\u017e\u00edvate\u013eov Habr @severov_info<\/a><\/noindex> (1. miesto), @MAXXL<\/a><\/noindex> (2. miesto) a @evzor<\/a><\/noindex> (3. miesto)! Naj\u0161\u0165astlivej\u0161ieho v novembri \u010dak\u00e1 mno\u017estvo z\u00e1\u017eitkov (d\u00fafame, pr\u00edjemn\u00fdch) z \u00fa\u010dasti na plachetnici AFR<\/a><\/noindex>, a dr\u017eite\u013eom druh\u00e9ho a tretieho miesta \u010doskoro predstav\u00edme kvalitn\u00e9 smartf\u00f3ny. A samozrejme, v\u0161etk\u00fdm trom darujeme bezplatn\u00fd pren\u00e1jom virtu\u00e1lneho servera od RUVDS.<\/p>\n

    \"Server
    \n
    \n\"Server
    \n
    \nAko prebiehal \u0161tart, si m\u00f4\u017eete pozrie\u0165 v tomto kr\u00e1tkom videu: <\/p>\n

    \r\n \"Prehrajte\r\n
    <\/div>\r\n <\/div><\/center>
    \n
    Zdroj:     habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

    \u0414\u0440\u0443\u0437\u044c\u044f, \u043f\u043e\u0440\u0430 \u043f\u043e\u0434\u0432\u0435\u0441\u0442\u0438 \u0438\u0442\u043e\u0433\u0438 \u043d\u0430\u0448\u0435\u0433\u043e \u043f\u0440\u043e\u0435\u043a\u0442\u0430-\u043a\u043e\u043d\u043a\u0443\u0440\u0441\u0430 \u00ab\u0421\u0435\u0440\u0432\u0435\u0440 \u0432 \u043e\u0431\u043b\u0430\u043a\u0430\u0445\u00bb. \u0415\u0441\u043b\u0438 \u043a\u0442\u043e-\u0442\u043e \u043d\u0435 \u0432 \u043a\u0443\u0440\u0441\u0435, \u043c\u044b \u0437\u0430\u043f\u0438\u043b\u0438\u043b\u0438 \u0444\u0430\u043d\u043e\u0432\u044b\u0439 \u0433\u0438\u043a-\u043f\u0440\u043e\u0435\u043a\u0442: \u0441\u0434\u0435\u043b\u0430\u043b\u0438 \u043c\u0430\u043b\u0435\u043d\u044c\u043a\u0438\u0439 \u0441\u0435\u0440\u0432\u0435\u0440 \u043d\u0430 Raspberry Pi 3, \u043f\u0440\u0438\u043a\u0440\u0443\u0442\u0438\u043b\u0438 \u043a \u043d\u0435\u043c\u0443 GPS-\u0442\u0440\u0435\u043a\u0435\u0440 \u0438 \u0434\u0430\u0442\u0447\u0438\u043a\u0438, 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":22488,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-30490","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Server v oblakoch: V\u00fdsledky projektu | ProHoster","description":"Priatelia, je \u010das zhodnoti\u0165 n\u00e1\u0161 projekt-s\u00fa\u0165a\u017e \u201eServer v 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