{"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\/cs\/blog\/administrirovanie\/server-v-oblakah-itogi-proekta","title":{"rendered":"Server v oblac\u00edch: V\u00fdsledky projektu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

P\u0159\u00e1tel\u00e9, je \u010das shrnout v\u00fdsledky na\u0161eho sout\u011b\u017en\u00edho projektu \u201eServer v oblac\u00edch\u201c. Pokud n\u011bkdo nev\u00ed, vytvo\u0159ili jsme z\u00e1bavn\u00fd geek projekt: ud\u011blali jsme mal\u00fd server na Raspberry Pi 3, p\u0159ipojili k n\u011bmu GPS tracker a senzory, v\u0161e toto jsme um\u00edstili na bal\u00f3n a vz trusting focused on weather conditions. Kde bal\u00f3n p\u0159istane, v\u00ed jen bohov\u00e9 v\u011btru a patroni vzduchoplavby, proto jsme navrhli v\u0161em z\u00e1jemc\u016fm umis\u0165ovat body na map\u011b \u2014 kte\u0159\u00ed body se ocitnou nejbl\u00ed\u017ee skute\u010dn\u00e9mu m\u00edstu p\u0159ist\u00e1n\u00ed, z\u00edskaj\u00ed \u201elahodn\u00e9\u201c ceny.<\/p>\n

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

Tak\u017ee n\u00e1\u0161 server u\u017e let\u011bl do oblak a je \u010das shrnout v\u00fdsledky na\u0161\u00ed sout\u011b\u017ee.
\n<\/a><\/noindex>
\nOdkazy na p\u0159edchoz\u00ed publikace o sout\u011b\u017ei<\/b><\/p>\n

    \n
  1. P\u0159\u00edsp\u011bvek o regat\u011b<\/a><\/noindex> (cena za prvn\u00ed m\u00edsto v na\u0161\u00ed sout\u011b\u017ei \u2014 \u00fa\u010dast v plachetn\u00ed regat\u011b AFR (Another F*cking Race)<\/a><\/noindex>, kter\u00e1 se uskute\u010dn\u00ed od 3. do 10. listopadu v Saronsk\u00e9m z\u00e1livu (\u0158ecko) spole\u010dn\u011b s t\u00fdmem RUVDS a Habrem.<\/li>\n
  2. Jak jsme d\u011blali \u201ehardwarovou \u010d\u00e1st<\/a><\/noindex>\u201c projektu \u2014 pro milovn\u00edky geek porna, s podrobnostmi a rozborem k\u00f3du.<\/li>\n
  3. Megapost o projektu<\/a><\/noindex> s kompletn\u00edm popisem.<\/li>\n
  4. Web projektu<\/noindex>, na kter\u00e9m se dalo sledovat pohyb bal\u00f3nu a telemetrii v re\u00e1ln\u00e9m \u010dase.<\/li>\n
  5. Report\u00e1\u017e<\/a><\/noindex> z m\u00edsta vypu\u0161t\u011bn\u00ed bal\u00f3nu.<\/li>\n<\/ol>\n

    A zku\u0161enost, syn t\u011b\u017ek\u00fdch chyb<\/h2>\n

    \nJak si pamatujete, pl\u00e1novali jsme p\u0159en\u00e1\u0161et data ze serveru p\u0159es GSM modem. To byl hlavn\u00ed kan\u00e1l pro p\u0159enos informac\u00ed. Mysleli jsme, \u017ee jsme zv\u00e1\u017eili v\u0161echny nep\u0159edv\u00eddan\u00e9 okolnosti s pokryt\u00edm mobiln\u00ed s\u00edt\u011b, kdy\u017e jsme do modemu vlo\u017eili dv\u011b SIM karty oper\u00e1tor\u016f s nejlep\u0161\u00edm pokryt\u00edm v Dmitrovsk\u00e9m okrese. Krom\u011b toho m\u011bl modem dobrou v\u0161esm\u011brovou ant\u00e9nu. Ale, jak se \u0159\u00edk\u00e1, \u010dlov\u011bk p\u0159edpokl\u00e1d\u00e1, ale oper\u00e1to\u0159i disponuj\u00ed. Kdy\u017e bal\u00f3n vzl\u00e9tl v\u00fd\u0161 ne\u017e 500 metr\u016f (v\u00fd\u0161ka Ostankinsk\u00e9 televizn\u00ed v\u011b\u017ee), mobiln\u00ed spojen\u00ed \u00fapln\u011b zmizelo. <\/p>\n

    \"Server
    \n
    \nKdy\u017e se zamysl\u00edme zp\u011btn\u011b, zd\u00e1 se to b\u00fdt jasn\u00e9, ale to u\u017e je retroaktivn\u00ed \u00favaha. Samoz\u0159ejm\u011b, ant\u00e9ny mobiln\u00ed s\u00edt\u011b jsou ur\u010deny na pokryt\u00ed na zemi, nikoli ve vzduchu. Jejich sm\u011brov\u00e9 diagramy \u201est\u0159\u00edl\u00ed\u201c pod\u00e9l ter\u00e9nu a do oblak\u016f \u201enesv\u00edt\u00ed\u201c. Tak\u017ee mobiln\u00ed spojen\u00ed ve v\u00fd\u0161ce p\u016fl kilometru a v\u00fd\u0161e je pouh\u00e9 n\u00e1hodn\u00e9 odra\u017een\u00ed petal n\u011bjak\u00e9 ant\u00e9ny. Tak\u017ee p\u016flku trasy spojen\u00ed s bal\u00f3nem po mobiln\u00edm kan\u00e1lu nebylo. A p\u0159i sestupu, kdy\u017e jsme se sn\u00ed\u017eili pod 500 metr\u016f, mobiln\u00ed spojen\u00ed op\u011bt za\u010dalo fungovat.<\/p>\n

    Jak jsme z\u00edsk\u00e1vali telemetrii ze sf\u00e9rick\u00e9ho t\u011blesa? D\u011bkujeme duplikovan\u00e9mu kan\u00e1lu p\u0159enosu dat. Na kouli jsme nainstalovali sadu LoRa-rozhran\u00ed<\/a><\/noindex>, pracuj\u00edc\u00ed na frekvenci 433 MHz. <\/p>\n

    \"Server
    \n
    \nJeho propustnost nen\u00ed velk\u00e1, ale pro na\u0161e \u00fa\u010dely to sta\u010dilo. Co se t\u00fd\u010de ur\u010den\u00ed polohy koule pomoc\u00ed GPS, s t\u00edm nebyly \u017e\u00e1dn\u00e9 probl\u00e9my, tracker fungoval bez zav\u00e1h\u00e1n\u00ed.<\/p>\n

    \"Server
    \n
    \nA b\u011bhem letu se uk\u00e1zalo, \u017ee USB kabel spojuj\u00edc\u00ed telemetrick\u00fd modul s Raspberry Pi 3 byl vadn\u00fd. Na zemi fungoval, ale v oblac\u00edch selhal. Asi se lekl v\u00fd\u0161ky. O vinu kabelu jsme se dozv\u011bd\u011bli a\u017e po p\u0159ist\u00e1n\u00ed. Na\u0161t\u011bst\u00ed se poda\u0159ilo obnovit p\u0159enos dat p\u0159\u00edmo z telemetrick\u00e9ho modulu p\u0159es LoRa.<\/p>\n

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

    A n\u011bco pozitivn\u00edho<\/h2>\n

    \n\u0160t\u011bst\u00ed se usm\u00e1lo na u\u017eivatele Habr @severov_info<\/a><\/noindex> (prvn\u00ed m\u00edsto), @MAXXL<\/a><\/noindex> (druh\u00e9 m\u00edsto) a @evzor<\/a><\/noindex> (t\u0159et\u00ed m\u00edsto)! Nej\u0161\u0165astn\u011bj\u0161\u00ed \u00fa\u010dastn\u00edk v listopadu se m\u016f\u017ee t\u011b\u0161it na spoustu z\u00e1\u017eitk\u016f (doufejme, \u017ee p\u0159\u00edjemn\u00fdch) z \u00fa\u010dasti v plachetn\u00ed regat\u011b AFR<\/a><\/noindex>, a majitel\u016fm druh\u00e9ho a t\u0159et\u00edho m\u00edsta brzy p\u0159iprav\u00edme skv\u011bl\u00e9 smartphony. A samoz\u0159ejm\u011b, v\u0161ichni t\u0159i dostanou jako d\u00e1rek bezplatn\u00fd pron\u00e1jem virtu\u00e1ln\u00edho serveru od RUVDS.<\/p>\n

    \"Server
    \n
    \n\"Server
    \n
    \nJak prob\u00edhalo spu\u0161t\u011bn\u00ed, m\u016f\u017eete vid\u011bt v tomto kr\u00e1tk\u00e9m videu: <\/p>\n

    \r\n \"P\u0159ehr\u00e1t\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 oblac\u00edch: V\u00fdsledky projektu | ProHoster","description":"Druz\u00ed, je \u010das shrnout v\u00fdsledky na\u0161eho projekto-konkursu \"Server v 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