{"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\/ro\/blog\/administrirovanie\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","title":{"rendered":"Server \u00een nori 2.0. Lans\u0103m serverul \u00een stratosfer\u0103","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Prieteni, am venit cu o nou\u0103 ini\u021biativ\u0103. Mul\u021bi dintre voi \u00ee\u0219i amintesc de proiectul nostru geek de anul trecut \u201eServer \u00een nori<\/a><\/noindex>\u201d: am construit un mic server pe baza Raspberry Pi \u0219i l-am lansat cu un balon. <\/p>\n

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

Acum am decis s\u0103 mergem \u0219i mai departe, adic\u0103 mai sus \u2014 ne a\u0219teapt\u0103 stratosfera!
\n<\/a><\/noindex>
\nReamintim pe scurt ce a fost esen\u021ba primului proiect \u201eServer \u00een nori\u201d. Serverul nu a zburat doar cu un balon, ci intrigant, dispozitivul a fost func\u021bional \u0219i transmitea telemetria sa pe P\u0103m\u00e2nt. <\/p>\n

\"Server
\n
\nAsta \u00eenseamn\u0103 c\u0103 orice doritor putea s\u0103 urm\u0103reasc\u0103 \u00een timp real traseul. \u00cenainte de lansare, 480 de persoane au marcat pe hart\u0103 locurile unde balonul ar putea ateriza.<\/p>\n

\"Server
\n
\nDesigur, \u00een conformitate cu legea lui Edward Murphy, \u00een timpul zborului, canalul principal de comunica\u021bie prin modem GSM a picat. A\u0219a c\u0103 echipajul a fost nevoit, practic, s\u0103 treac\u0103 pe leg\u0103turi secundare bazate pe LoRa<\/a><\/noindex>. De asemenea, aeronauticii au trebuit s\u0103 rezolve problema cu cablul USB care conecta modulul de telemetrie cu Raspberry 3 \u2014 se pare c\u0103 s-a speriat de \u00een\u0103l\u021bime \u0219i a refuzat s\u0103 func\u021bioneze. Bine c\u0103 defectele s-au oprit aici \u0219i balonul a aterizat cu bine. Trei noroco\u0219i, ale c\u0103ror marcaje au fost cele mai apropiate de locul ateriz\u0103rii, au primit premii delicioase. Apropo, pentru locul \u00eent\u00e2i, am oferit o participare la regata de naviga\u021bie AFR 2018 (Salut, Vitalik!). <\/p>\n

Proiectul a demonstrat c\u0103 ideea \u201eserverelor aeropurtate\u201d nu este at\u00e2t de nebuneasc\u0103 pe c\u00e2t ar putea p\u0103rea. \u0218i vrem s\u0103 facem urm\u0103torul pas spre \u201edata center zbur\u0103tor\u201d: s\u0103 verific\u0103m func\u021bionarea serverului care va urca cu un stratostat la o altitudine de aproximativ 30 km \u2014 \u00een stratosfer\u0103. Lansarea va avea loc cu ocazia Zilei Cosmonauticii, adic\u0103 mai avem foarte pu\u021bin timp, mai pu\u021bin de o lun\u0103. <\/p>\n

Numele \u201eServer \u00een nori 2.0\u201d nu este tocmai corect, deoarece la o astfel de \u00een\u0103l\u021bime nu \u00eent\u00e2lne\u0219ti niciun nor. A\u0219a c\u0103 putem numi proiectul \u201eServer deasupra norilor\u201d (urm\u0103torul proiect va trebui s\u0103-l numim \u201eDrag\u0103, e\u0219ti cosmos!\u201d).<\/p>\n

\"Server
\n
\nCa \u0219i \u00een primul proiect, serverul va fi func\u021bional. Dar interesul const\u0103 \u00een altceva: vrem s\u0103 verific\u0103m conceptul celebrului proiect Google Loon \u0219i s\u0103 test\u0103m efectiv posibilitatea de a oferi internet din stratosfer\u0103.<\/p>\n

Schema de func\u021bionare a serverului va ar\u0103ta astfel: pe pagina de destina\u021bie, ve\u021bi putea trimite mesaje text c\u0103tre server prin intermediul unui formular. Acestea vor fi transmise prin protocolul HTTP prin dou\u0103 sisteme independente de comunica\u021bie prin satelit c\u0103tre un computer suspendat sub stratostart, iar acesta va retransmite datele \u00eenapoi pe P\u0103m\u00e2nt, dar nu pe aceea\u0219i cale prin satelit, ci pe raza radio. Astfel, vom \u0219ti c\u0103 serverul prime\u0219te date \u0219i c\u0103 poate oferi internet din stratosfer\u0103. De asemenea, vom putea calcula procentul de informa\u021bii \u201epierdute pe traseu\u201d. Pe aceea\u0219i pagin\u0103 de destina\u021bie va fi afi\u0219at un grafic al zborului stratostartului, iar pe acesta vor fi marcate punctele de recep\u021bie pentru fiecare mesaj trimis de dumneavoastr\u0103. Adic\u0103 ve\u021bi putea urm\u0103ri \u00een timp real traseul \u0219i altitudinea \u201eserverului supra-\u00eenl\u0103\u021bat\u201d.<\/p>\n

Iar pentru cei care nu au deloc \u00eencredere \u0219i care vor sus\u021bine c\u0103 totul este aranjat, vom instala la bord un mic ecran, pe care pe o pagin\u0103 HTML vor fi afi\u0219ate toate mesajele primite de la voi. Ecranul va fi surprins de o camer\u0103, care va include \u0219i o parte din orizont. Vrem s\u0103 transmitem semnal video prin raz\u0103 radio, dar exist\u0103 o nuan\u021b\u0103: dac\u0103 vremea este bun\u0103, video ar trebui s\u0103 ajung\u0103 pe P\u0103m\u00e2nt pe durata unei mari p\u0103r\u021bi a zborului stratostartului, \u00eentre 70-100 km. \u00cen condi\u021bii de nori, distan\u021ba de transmisie poate sc\u0103dea p\u00e2n\u0103 la 20 km. Dar \u00een orice caz, video va fi \u00eenregistrat \u0219i \u00eel vom publica dup\u0103 ce vom g\u0103si stratostartul pr\u0103bu\u0219it. Apropo, \u00eel vom c\u0103uta dup\u0103 semnalul farului GPS de la bord. Conform statisticilor, serverul va ateriza \u00eentr-un interval de 150 km de locul lans\u0103rii.<\/p>\n

\u00cen cur\u00e2nd, vom detalia cum va fi construit\u0103 aparatura de \u00eenc\u0103rcare util\u0103 a stratostartului \u0219i cum toate acestea vor func\u021biona \u00eempreun\u0103. De asemenea, vom dezv\u0103lui c\u00e2teva detalii interesante ale proiectului, legate de cosmos. <\/p>\n

Pentru a v\u0103 men\u021bine interesul \u00een proiect, ca \u0219i \u00een anul trecut, am organizat un concurs \u00een care trebuie s\u0103 determina\u021bi locul de aterizare al serverului. C\u00e2\u0219tig\u0103torul, care va ghici cel mai precis locul de aterizare, va avea ocazia s\u0103 c\u0103l\u0103toreasc\u0103 la Baikonur, pentru lansarea navei spa\u021biale \u201eSoyuz MS-13\u201d pe 6 iulie, iar premiul pentru locul doi este un certificat pentru o c\u0103l\u0103torie oferit de prietenii no\u0219tri de la Tuturu. Cei dou\u0103zeci de participan\u021bi r\u0103ma\u0219i vor putea merge \u00eentr-o excursie de grup \u00een Ora\u0219ul Stelei \u00een mai. Detalii pe site-ul concursului<\/a><\/noindex>.<\/p>\n

Urm\u0103ri\u021bi nout\u0103\u021bile pe blog \ud83d\ude42
\n
Sursa: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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