{"id":30915,"date":"2019-10-31T21:38:10","date_gmt":"2019-10-31T18:38:10","guid":{"rendered":"https:\/\/prohoster.info\/blog\/sravnenie-sistem-kosmicheskoj-svyazi\/"},"modified":"2019-10-31T21:38:10","modified_gmt":"2019-10-31T18:38:10","slug":"sravnenie-sistem-kosmicheskoj-svyazi","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/sravnenie-sistem-kosmicheskoj-svyazi","title":{"rendered":"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>S\u00f5brad, nagu te juba teate, valmistame me k\u00f5vasti ette <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ruvds\/blog\/445648\/\">uut geek-projekti<\/a><\/noindex> \u2014 \"Server pilvedes 2.0\", v\u00f5i \"Kosmiline andmekeskus\". L\u00fchidalt: 12. aprillil k\u00e4ivitame oma valmistatud serveri stratosf\u00e4\u00e4ris umbes 30 km k\u00f5rgusel, edastame sellele andmeid kosmose side s\u00fcsteemi kaudu ja serverist edastame andmed Maale raadioside kaudu. <\/p>\n<p>Ja t\u00e4na tahame r\u00e4\u00e4kida kolmest kosmose side s\u00fcsteemist, mida testime oma projektis \u2014 Iridium, GlobalStar ja \"Gonets\". Selleks paigaldame vastuv\u00f5tuaadressi meie pilveserveri l\u00e4hedusse.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ruvds\/blog\/446708\/\"><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/296f00ae31869ba5da5b47035a07a36e.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h1>L\u00fchike ajalugu<\/h1>\n<p>\nK\u00f5ik kolm kirjeldatud s\u00fcsteemi loodi ja juurutati enam-v\u00e4hem samal ajal, 1990-ndatel. Ameerika Iridium, neist, on mitte ainult vanim (t\u00f6\u00f6d algasid 1990. aastal), vaid ka k\u00f5ige ulatuslikum \u2014 algselt kavandati k\u00e4ivitada 77 satelliiti, mis vastab iridiumi aatomnumberile, kuid t\u00e4naseks on orbitaalil 66 satelliiti (+ 6 varukat). S\u00fcsteemi kommertskasutus algas 1998. aastal. \u00dche aastaga suutis ettev\u00f5te pankrotti minna, ja 2000. aastal ostis selle aktiivide ettev\u00f5te, mis tegutses USA kaitseministeeriumi huvides. 2001. aastal algas taas kommertskasutus, 2009. aastal vahetus Iridiumi omanik taas. Sellest ajast alates elab ja tervitab see satelliidiside v\u00f5rk.<\/p>\n<p>GlobalStar asutati ka Ameerikas, kuigi projektis osalevad ettev\u00f5tted Prantsusmaalt, Inglismaalt, Saksamaalt ja L\u00f5una-Koreast. Satelliitide r\u00fchm hakkati juurutama 1998. aastal ja 2000. aastal k\u00e4ivitati GlobalStar kommertskasutuses. Ka siin ei p\u00e4\u00e4senud me pankrotist, v\u00f5rk vahetas omanikku 2000. aastate alguses. T\u00e4naseks t\u00f6\u00f6tab orbitaalil 48 GlobalStar satelliiti (+ 4 varukat). <\/p>\n<p>Venemere s\u00fcsteem \"Gonets\" on projekt, mis algselt ei olnud erasektoris, vaid riiklik. Selle arendamine algas juba 1989. aastal, esimesed satelliidid k\u00e4ivitati 1996. aastal. Algul oli plaanitud, et r\u00fchm koosneb 24 satelliidist, kuid t\u00e4naseks on kasutuses vaid 12. L\u00e4hemate aastate jooksul on kavas k\u00e4ivitada veel paar tosinat satelliiti, sealhulgas vananevate asendamiseks.<\/p>\n<h1>Omadused ja v\u00f5imalused<\/h1>\n<p><\/p>\n<h3>Iridium<\/h3>\n<p>\nIridium valmistab suuremat leviala ja k\u00f5rgeimaid andmeedastuskiirusid. Selle satelliidid tiirlevad Maa \u00fcmber 780 km k\u00f5rgusel orbiitidel, mille kallak on 86,5\u00b0, ja katavad kogu planeedi, poolusest pooluseni. <\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"Xjig4NBAPZQ\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/Xjig4NBAPZQ\/hqdefault.jpg\" alt=\"M\u00e4ngi videot\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\nPraegu saavutab Iridium andmeedastuskiirus ideaaljuhul 352 kbit\/s, kuid aasta l\u00f5puks plaanitakse see t\u00f5sta 704\/352 kbit\/s (vastuv\u00f5tt ja saatmine). Siiski, reaalsed v\u00e4\u00e4rtused on tavaliselt madalamad. H\u00e4\u00e4lsuhtluses ei ole kvaliteet eriti hea ja esinevad moonutused. <\/p>\n<p><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/8fd6e3f4d0c4003a751fa0359a80741c.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nIridium toetab satelliitide vahelist otsest suhtlust, seet\u00f5ttu v\u00f5ib s\u00fcsteem formaalselt hakkama saada ilma arvukate v\u00e4ravajaamadega erinevates riikides, mis edastavad andmeid internetti ja maapealsesse telefoniv\u00f5rku, erinevalt GlobalStarist, ning edastab kogu liikluse Ameerika \u00dchendriikides asuvale pea v\u00e4ravajaamale. Siiski on t\u00f5en\u00e4oline, et side usaldusv\u00e4\u00e4rsuse tagamiseks ehitatakse siiski v\u00e4ravajaamu, kuigi mitte nii palju.<\/p>\n<p>Iridiumi telefonid on turul \u00fched kallimad, kuid pakuvad rikkalikku varustust ja v\u00f5imalusi. Saadaval on ka mobiilimoodulid ja seadmed tekstiliste s\u00f5numite saatmiseks (m\u00e4rgatavalt odavamad kui h\u00e4\u00e4lkommunikatsioon). Andmete edastamiseks l\u00e4bi Iridiumi on peale telefoni vajalik arvuti, kuhu tuleb installida Iridium Data Kit'i tarkvara. Selle satelliitv\u00f5rgu side teenused on kallimad kui konkurentidel. N\u00e4iteks aastak\u00e4ik 250 minutit Venemaal maksab 28 700 rubla, kahekuuline kupong 150 minutit \u00fcle maailma maksab 17 400 rubla. J\u00e4rgnevatel makseteenustel on \u00fche minuti k\u00f5ne hind alates 58 rubla, SMS hind 22 rubla, lisaks tellimistasu alates 12 000 rubla (alla kuue kuu) ja alates 3100 rubla (\u00fcle kuue kuu). Ja peale selle ei ole ettev\u00f5te praegu keegi s\u00f5lminud r\u00e4ndlemislepinguid, seega ei saa Iridiumi seadmetes kasutada GSM-telefonide SIM-kaarte, vaid ainult \u201eoma\u201d kaarte.<\/p>\n<h3>GlobalStar<\/h3>\n<p>\nGlobalStari satelliidid tiirlevad 1400 km k\u00f5rgusel ja orbiitide kallak on 52\u00b0. Satelliidid ei vaheta omavahel andmeid, seega kuulub s\u00fcsteemi jaama v\u00f5rk, mis on \u00fchendusl\u00fcli satelliitide kordusreleede, interneti ja maapealse telefoniv\u00f5rgu vahel.<\/p>\n<p>Iridiumi satelliidid on m\u00e4rgitud punasega, GlobalStari omad sinisega:<\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"t9dn48KXzks\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/t9dn48KXzks\/hqdefault.jpg\" alt=\"M\u00e4ngi videot\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\nGlobalStar'i katte on tagasihoidlikum \u2014 katvus on kuni 70\u00b0 p\u00f5hja ja l\u00f5una laiuskraadil, mist\u00f5ttu ei h\u00f5lma see v\u00f5rgu piirkondi, mis on polaarsete alade l\u00e4hedal. Siiski, arvustuste kohaselt on katvus ka teistel laiuskraadi tsoonidel sageli ebastabiilne. Kui satelliit on n\u00e4htaval kohal, ei tohiks teil kontakti loomiseks probleeme olla. Andmeedastuskiirus GlobalStar'is on madalam kui Iridiumis, kuid helikvaliteet h\u00e4\u00e4lrakendustes on sarnane mobiiltelefoni k\u00f5ne kvaliteediga.<\/p>\n<p><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/926e08aec2d67871fbb53c9fef48d473.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nFormaalne v\u00f5rk toetab CDMA ja GSM standardeid, kuid praktikas ei t\u00f6\u00f6ta k\u00f5ik v\u00e4ravajaamad GSM-iga, kuigi meie riigi jaoks pole see asjakohane. Enamikus riikides on v\u00f5imalik GlobalStar'iga \u00fchilduvatesse telefonidesse sisestada 'tavaliste' mobiilioperaatorite SIM-kaarte. GlobalStar'i seadmed on m\u00e4rgatavalt odavamad kui Iridiumi omad. M\u00fc\u00fcgil on erineva tasemega telefone, seadmeid tekstiliseks suhtlemiseks mehaaniliste klaviatuuridega, hotspot'id, j\u00e4lgimisseadmed, mida saab paigaldada transpordivahenditesse v\u00f5i kanda isiklikult, ja palju muud. Kuukasutustasu puudub ning sidehinnad on madalamad kui Iridiumil: n\u00e4iteks kuu-pakett k\u00f5nede tegemiseks Venemaal kuueks kuuks ja 250 minutit \u2014 9800 rubla, postmakse tariifides minut alates 44 rubla, SMS \u2014 4 rubla, interneti\u00fchendus \u2014 alates 13 rubla.<\/p>\n<h3>Gonets<\/h3>\n<p>\nSelle s\u00fcsteemi satelliidid tiirlevad planeti \u00fcmber 1500 km k\u00f5rgusel, orbiitidel, mille kaldus on 82,5\u00b0. Tulemuseks on, et Maa pind on t\u00e4ielikult kaetud, kuid mitte samaaegselt.<\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"7dF6WJwxyAg\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/7dF6WJwxyAg\/hqdefault.jpg\" alt=\"M\u00e4ngi videot\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\nVenemaal on rajatud 3 v\u00e4ravajaama (ja \u00fcks on planeeritud), mis \u00fchendavad satelliitide r\u00fchma internetiga.<\/p>\n<p><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/f2e8dce5b0f9e1c2b19a43bfd93be39e.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nHuvitav, et Gonets ei konkurree teiste s\u00fcsteemidega h\u00e4\u00e4lside valdkonnas. Selle asemel keskendub Venemaa projekt tekstis\u00f5numite saatmisele. Selleks tuleb osta tellimusseade ja antenn ning \u00fchendada neile nutitelefon, s\u00fclearvuti v\u00f5i laua arvuti. L\u00fchidalt, introverdi unistus \u2014 kogu suhtlemine ainult vestluses ja ei mingeid \u00fcllatavaid k\u00f5nesid.<\/p>\n<p><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/9e9b1a3d664e9bbd4492898b82b31f5f.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nSamuti pakub Gonets M2M-side teenuseid erinevate objektide seisundi automaatseks j\u00e4lgimiseks ja telemeetria kogumiseks, nii statsionaarsete kui ka liikuvate objektide jaoks.<\/p>\n<p><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/143b49b2e13718b8bca2adfc9befb4f7.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nJa lisateenused nagu transpordivahendite geokoordinaatide edastamine ja teatiste saatmine. <\/p>\n<p>Side teenuste tasud p\u00f5hinevad tellimusele \u2014 tegelikult on tegemist ettemakstud igakuiste pakettide jadaga, kus on kilobaitide liiklus. N\u00e4iteks, kui tellimustasu on null, v\u00f5etakse iga edastatud andme kilobaiti eest 26 rubla, ja valikus on mitmeid pakette alates 470 rubla (30 Kb) kuni 8 650 rubla (2 000 Kb). Pluss iga sissetulev s\u00f5num mobiilv\u00f5rkudele Venemaal maksab 10 rubla. Iga kilobait, mis \u00fcletab limiiti, maksab eraldi, vahemikus 11 kuni 26 rubla. <\/p>\n<h1>Mida valida?<\/h1>\n<p>\nMeie soovid on j\u00e4rgmised: varustada 'pilveserver' j\u00e4lgimisseadmestikuga asukoha kindlaksm\u00e4\u00e4ramiseks ja modulliga andmete vahetamiseks satelliidi kaudu. Teoreetiliselt v\u00f5ivad k\u00f5ik kolm v\u00f5rku neid funktsioone pakkuda. Oleme juba ostnud modemeid Iridium ja GlobalStar, ja seadme 'Gonets' kohaletoimetamine on teel. Jagaame kindlasti rohkem teavet meie suhtes\u00fcsteemi kohta \u00fches tulevases postituses.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/12.ruvds.com\/\"><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/8f97dd64736b9bf4c1e4a5bf121445af.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/p>\n<p>Kutsume teid <noindex><a rel=\"nofollow\" href=\"https:\/\/12.ruvds.com\/\">osalege<\/a><\/noindex> meie eksperimendis, et arvata \u00e4ra zondi maandumiskoht ja v\u00f5ita peapreemia \u2014 reis Baikonurile.<\/p>\n<p>\u00c4rge eemaldage!<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/ruvds.com\/ru-rub\/#order\"><img decoding=\"async\" alt=\"Kosmose sidekcommunikatsioonis\u00fcsteemide v\u00f5rdlus\" src=\"\/wp-content\/uploads\/2019\/04\/392da47c30371107afa35e5d28c256e6.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/ruvds\/blog\/446708\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u0440\u0443\u0437\u044c\u044f, \u043a\u0430\u043a \u0432\u044b \u0443\u0436\u0435 \u0437\u043d\u0430\u0435\u0442\u0435, \u043c\u044b \u043d\u0430 \u0432\u0441\u0435\u0445 \u043f\u0430\u0440\u0430\u0445 \u0433\u043e\u0442\u043e\u0432\u0438\u043c \u043d\u043e\u0432\u044b\u0439 \u0433\u0438\u043a-\u043f\u0440\u043e\u0435\u043a\u0442 \u2014 \u00ab\u0421\u0435\u0440\u0432\u0435\u0440 \u0432 \u043e\u0431\u043b\u0430\u043a\u0430\u0445 2.0\u00bb, \u0438\u043b\u0438 \u00ab\u041a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0426\u041e\u0414\u00bb. \u0412 \u0434\u0432\u0443\u0445 \u0441\u043b\u043e\u0432\u0430\u0445: 12 \u0430\u043f\u0440\u0435\u043b\u044f \u043c\u044b \u0437\u0430\u043f\u0443\u0441\u0442\u0438\u043c \u0441\u0430\u043c\u043e\u043f\u0430\u043b\u044c\u043d\u044b\u0439 \u0441\u0435\u0440\u0432\u0430\u0447\u043e\u043a \u043d\u0430 \u0441\u0442\u0440\u0430\u0442\u043e\u0441\u0442\u0430\u0442\u0435 \u043d\u0430 \u0432\u044b\u0441\u043e\u0442\u0443 \u043e\u043a\u043e\u043b\u043e 30 \u043a\u043c, \u0431\u0443\u0434\u0435\u043c \u043f\u0435\u0440\u0435\u0434\u0430\u0432\u0430\u0442\u044c \u043d\u0430 \u043d\u0435\u0433\u043e \u0434\u0430\u043d\u043d\u044b\u0435 \u0447\u0435\u0440\u0435\u0437 \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u0432\u044f\u0437\u0438, \u0430 \u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0442\u0440\u0430\u043d\u0441\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0435 \u043d\u0430 \u0417\u0435\u043c\u043b\u044e \u043f\u043e \u0440\u0430\u0434\u0438\u043e\u0441\u0432\u044f\u0437\u0438. \u0418 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":22893,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-30915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0414\u0440\u0443\u0437\u044c\u044f, \u043a\u0430\u043a \u0432\u044b \u0443\u0436\u0435 \u0437\u043d\u0430\u0435\u0442\u0435, \u043c\u044b \u043d\u0430 \u0432\u0441\u0435\u0445 \u043f\u0430\u0440\u0430\u0445 \u0433\u043e\u0442\u043e\u0432\u0438\u043c \u043d\u043e\u0432\u044b\u0439 \u0433\u0438\u043a-\u043f\u0440\u043e\u0435\u043a\u0442 \u2014 \u00ab\u0421\u0435\u0440\u0432\u0435\u0440 \u0432 \u043e\u0431\u043b\u0430\u043a\u0430\u0445 2.0\u00bb, 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