{"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\/no\/blog\/administrirovanie\/server-v-oblakah-2-0-zapuskaem-server-v-stratosferu","title":{"rendered":"Server i skyene 2.0. Vi lanserer serveren i stratosf\u00e6ren","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Venn, vi har funnet p\u00e5 et nytt prosjekt. Mange av dere husker v\u00e5rt fjor\u00e5rs morsomme geek-prosjekt \u00abServer i skyene<\/a><\/noindex>\u00bb: vi laget en liten server basert p\u00e5 Raspberry Pi og sendte den opp med en varm luftballong. <\/p>\n

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

N\u00e5 har vi besluttet \u00e5 ta det enda lenger, alts\u00e5 h\u00f8yere \u2014 stratosf\u00e6ren venter oss!
\n<\/a><\/noindex>
\nLa oss kort minne om hva som var kjernen i det f\u00f8rste prosjektet \u00abServer i skyene\u00bb. Serveren fl\u00f8y ikke bare med en luftballong, spenningen l\u00e5 i at enheten var i drift og sendte telemetridata ned til bakken. <\/p>\n

\"Server
\n
\nDermed kunne alle interesserte i sanntid f\u00f8lge bevegelsesruten. F\u00f8r oppskytningen merket 480 personer p\u00e5 kartet hvor ballongen kunne lande.<\/p>\n

\"Server
\n
\nSelvf\u00f8lgelig, i full overensstemmelse med Edward Murphys lov, mistet vi under flyvningen hovedkommunikasjonskanalen via GSM-modemet. Derfor m\u00e5tte mannskapet, bokstavelig talt, skifte til reservekommunikasjon p\u00e5 farten basert p\u00e5 LoRa<\/a><\/noindex>. Ogs\u00e5 luftseilerne m\u00e5tte l\u00f8se problemet med USB-kabelen som koblet telemetrimodulen og Raspberry 3 \u2014 den s\u00e5 ut til \u00e5 bli skremt av h\u00f8yden og nektet \u00e5 fungere. Heldigvis stoppet problemene der, og ballongen landet trygt. Tre heldige vinnere, hvis merker var n\u00e6rmest landingsstedet, fikk smakfulle premier. For \u00f8vrig, til f\u00f8rsteplassen ga vi bort deltakelse i seilregattaen AFR 2018 (Hilsen til Vitalik!). <\/p>\n

Prosjektet beviste at ideen om \u00abluftbaserte servere\u00bb ikke er s\u00e5 spr\u00f8 som den kan virke. Og vi \u00f8nsker \u00e5 ta neste steg mot \u00abflygende datasenter\u00bb: teste funksjonen til en server som skal opp til en h\u00f8yde av rundt 30 km \u2014 til stratosf\u00e6ren. Oppskytningen vil skje i forbindelse med Romfartsdagen, s\u00e5 vi har ikke mye tid igjen, mindre enn en m\u00e5ned. <\/p>\n

Navnet \u00abServer i skyene 2.0\u00bb er ikke helt korrekt, siden du ikke vil finne noe skydotter p\u00e5 en slik h\u00f8yde. S\u00e5 vi kan kalle prosjektet \u00abOver-cloud server\u00bb (neste prosjekt m\u00e5 kanskje hete \u00abBaby, du er rommet!\u00bb).<\/p>\n

\"Server
\n
\nSom i det f\u00f8rste prosjektet, vil serveren v\u00e6re operativ. Men det som skiller seg ut, er at vi \u00f8nsker \u00e5 teste konseptet fra det ber\u00f8mte Google Loon-prosjektet og unders\u00f8ke muligheten for \u00e5 distribuere internett fra stratosf\u00e6ren.<\/p>\n

Serverens arbeidsordning vil se slik ut: p\u00e5 landingssiden kan du sende tekstmeldinger til serveren via et skjema. De vil bli sendt via HTTP-protokollen gjennom to uavhengige satellittsystemer til en datamaskin hengende under stratosf\u00e6ren, som deretter vil sende disse dataene tilbake til jorden, men ikke via satellitten, men over radiokanal. Slik vil vi vite at serveren faktisk mottar data, og at den kan distribuere internett fra stratosf\u00e6ren. Vi vil ogs\u00e5 kunne beregne prosentandelen av informasjon som g\u00e5r tapt<\/p>\n

For de som fortsatt er skeptiske og sier at dette er alt sammen rigget, vil vi installere en liten skjerm om bord, hvor alle meldingene vi har mottatt fra deg vil bli vist p\u00e5 en HTML-side. Skjermen vil bli filmet av et kamera, hvor ogs\u00e5 en del av horisonten vil v\u00e6re i synsfeltet. Vi \u00f8nsker \u00e5 sende videosignalet over radiokanal, men her er det en nyanse: hvis v\u00e6ret er bra, skal videoen rekke ned til bakken i store deler av stratosf\u00e6rens flyvning, p\u00e5 70-100 km. Ved skyer kan rekkevidden falle til omtrent 20 kilometer. Men uansett vil videoen bli tatt opp, og vi vil publisere den etter at vi har funnet det nedfalne stratosf\u00e6ren. For \u00f8vrig vil vi lete etter det ved hjelp av signalet fra det ombord GPS-sporingssystemet. If\u00f8lge statistikk vil serveren lande innen 150 km fra oppskytingsstedet.<\/p>\n

Snart vil vi gi en detaljert forklaring p\u00e5 hvordan utstyret for nyttelasten av stratosf\u00e6ren vil v\u00e6re, og hvordan alt dette skal fungere sammen. Og for \u00f8vrig vil vi avsl\u00f8re noen flere interessante detaljer om prosjektet knyttet til rommet. <\/p>\n

For your interest in following the project as in the previous year, we have devised a contest where you need to determine the landing spot of the server. The winner who guesses the landing spot most accurately will have the opportunity to travel to Baikonur for the launch of the manned spacecraft Soyuz MS-13 on July 6th. The second-place prize is a travel certificate from our friends at Tuturu. Twenty other participants will have the chance to join a group tour to Star City in May. Details are available on the contest website<\/a><\/noindex>.<\/p>\n

Stay tuned for updates on the blog \ud83d\ude42
\n
Kilde: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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