Ọla a yoo firanṣẹ olupin wa sinu stratosphere. Lakoko ọkọ ofurufu, balloon stratospheric yoo pin kaakiri Intanẹẹti, titu ati gbejade fidio ati data telemetry si ilẹ. A kowe ni igba pupọ pe a yoo sọrọ nipa ẹgbẹ imọ-ẹrọ ti iṣẹ akanṣe wa “Ile-iṣẹ Data Space” (ṣe idahun tẹlẹ si orukọ “"). A ṣe ileri - a firanṣẹ! Labẹ awọn ge nibẹ ni iwonba awọn ege ti hardware ati koodu.
olupin ayelujara
Paapaa ninu iṣẹ-ṣiṣe "Olupin ninu Awọn Awọsanma" ti tẹlẹ, nigba ti a ba gòke lọ ni balloon ti o ni kikun pẹlu awọn eniyan meji, mu pẹlu wa ni olupin ti o ni kikun pẹlu apejọ batiri jẹ, jẹ ki a sọ, kii ṣe onipin. Ati ni bayi a n sọrọ nipa balloon stratospheric kekere kan, eyiti yoo ni lati gun 30 km, kii ṣe 1. Nitorinaa, a yan Rasipibẹri Pi kanna bi olupin wẹẹbu kan. Kọmputa microcomputer yii yoo ṣe ina oju-iwe HTML kan ati ṣafihan lori ifihan lọtọ.
Satẹlaiti asopọ
Ni afikun si Rasipibẹri, awọn modems lati Iridium ati Globalstar satẹlaiti awọn nẹtiwọki ibaraẹnisọrọ yoo fo lori ọkọ. Bi o ṣe ranti, a gbero lati ṣafikun modẹmu kan fun nẹtiwọọki Gonets ile si ile-iṣẹ wọn, ṣugbọn a ko ni akoko lati gba ni ilosiwaju, nitorinaa a yoo firanṣẹ ni ọkọ ofurufu ti nbọ. Nipasẹ awọn modems satẹlaiti, olupin wẹẹbu yoo gba awọn ifiranṣẹ rẹ, eyiti o le firanṣẹ si . Awọn ifiranšẹ wọnyi yoo jẹ gbigbe si Rasipibẹri Pi, eyiti yoo ṣe isinyi wọn ati ṣafihan wọn lori oju-iwe HTML kan.
Ojuami pataki: opin ipari ti ifọrọranṣẹ ni Russian jẹ awọn ohun kikọ 58 (pẹlu awọn alafo). Ti ifiranṣẹ ba gun, yoo ge kuro lakoko gbigbe. Paapaa, gbogbo awọn ohun kikọ pataki ni yoo ge kuro ninu ọrọ naa, fun apẹẹrẹ, /+$%&;''""<>n ati iru.
Niwọn bi Rasipibẹri Pi nikan ni ibudo UART kan, a yoo so awọn modems satẹlaiti pọ nipasẹ ibudo agbedemeji, eyiti yoo gba data lati awọn modems ki o firanṣẹ si Rasipibẹri Pi.
Modẹmu redio
Olupin wẹẹbu kii yoo ṣafihan gbogbo awọn ifiranṣẹ ti o gba lati ọdọ rẹ lori ifihan nikan, ṣugbọn tun gbejade si Earth nipasẹ modẹmu redio LoRa kan. Nitorinaa a fẹ lati ṣe idanwo ero ti pinpin Intanẹẹti lati stratosphere (ori-ori si iṣẹ akanṣe Google Loon). Nitoribẹẹ, balloon stratospheric wa kii ṣe atunṣe ibaraẹnisọrọ ni kikun, ṣugbọn paapaa ti awọn agbara rẹ ba to fun gbigbe data iduroṣinṣin, laisi awọn ipadanu nla ti alaye, lẹhinna awọn eto amọja yoo dajudaju koju pẹlu pinpin Intanẹẹti lati aaye iṣaaju.
Telemetry
Ni afikun, a gbero lati ṣafihan data telemetry lori oju-iwe HTML kanna. Rasipibẹri Pi yoo gba wọn lati ọdọ oludari ọkọ ofurufu lọtọ.
O interrogates orisirisi sensosi ti o le wa ni gbe mejeeji inu ati ita awọn hardware hermetic apoti, gba awọn alaye ni a opoplopo, combs o ati ki o yoo fun ni a rọrun fọọmu si awon ti o beere. Ninu ọran wa, yoo beere fun Rasipibẹri Pi. A yoo ṣe igbasilẹ titẹ, giga, awọn ipoidojuko GPS, inaro ati iyara petele ati iwọn otutu.
Awọn data lati ọdọ oludari ọkọ ofurufu ti wa ni gbigbe ni awọn laini gigun, eyiti o jẹ lẹhinna, lilo koodu yii:
$str = 'N:647;T:10m55s;MP.Stage:0;MP.Alt:49;MP.VSpeed:0.0;MP.AvgVSpeed:0.0;Baro.Press:1007.06;Baro.Alt:50;Baro.Temp:35.93;GPS.Coord:N56d43m23s,E37d55m68s;GPS.Home:N56d43m23s,E37d55m68s;Dst:5;GPS.HSpeed:0;GPS.Course:357;GPS.Time:11h17m40s;GPS.Date:30.07.2018;DS.Temp:[fc]=33.56;Volt:5.19,0.00,0.00,0.00,0.00,0.00,0.00,0.00';
parse_str(strtr($str, [
':' => '=',
';' => '&'
]), $result);
print_r($result);yi pada si orun ni fọọmu ti o rọrun fun ifihan:
Array
(
[N] => 647
[Т] => 10m55з
[MP_Stage] => 0
[MP_Alt] => 49
[MP_VSpeed) => 0.0
[MP_AvgVSpeed] => 0.0
[Baro Рrеss] => 1007.06
[Baro_Alt] => 50
[Baro_Temp] => 35.93
[GPS_Coord] => N56d43m23s,E37d55m68s
[GPS_Home) => N56d43m23s,E37d55m68s
[Dst] => 5
[GPS_HSpeed] => 0
[GPS_Course] => 357
[GPS_Time] => 11h17m40s
[GPS_Date] => 30.07.2018
[DS_Temp] => [fс] ЗЗ.56
[Volt] => 5.19, 0.00,0.00,0.00,0.00,0.00,0.00,0.00
)A yoo tun ṣe ikede data telemetry si Earth pẹlu awọn ifiranṣẹ rẹ. Lati ṣe eyi, a yoo ran ibudo gbigba wọle ni aaye ifilọlẹ.
Ifihan ati kamẹra
Ki o le rii daju pe olupin naa n gba awọn ifiranṣẹ rẹ ni otitọ nipasẹ ibaraẹnisọrọ satẹlaiti, ati pe o fò gangan sinu stratosphere ati pe ko duro ni ọfiisi wa, a pinnu lati ṣafihan gbogbo awọn ifiranṣẹ pẹlu telemetry lori ifihan ti yoo gba nipasẹ GoPro kan. Akoko diẹ wa lati mura iṣẹ naa (bawo ni o ṣe le jẹ pupọ julọ ?!), Nitorinaa a ko ni wahala pẹlu Aliexpress ati irin tita, ṣugbọn dipo mu ẹrọ ti a ti ṣetan. O ti wa ni diẹ ẹ sii ju to fun wa aini. A yoo so ifihan pọ si Rasipibẹri nipasẹ HDMI.
A tun gbero lati gbejade fidio lati GoPro nipasẹ ikanni redio lọtọ, ṣugbọn bii o ṣe le ṣiṣẹ jẹ aimọ - boya awọn awọsanma kekere yoo dinku iwọn ibaraẹnisọrọ pupọ. Ṣugbọn ni eyikeyi ọran, lẹhin ti a rii balloon stratospheric ti ilẹ, a yoo firanṣẹ fidio kan lati kamẹra ati pe o le rii fun ararẹ kini awọn ifiranṣẹ ti “ile-iṣẹ data aaye-tẹlẹ” ti gba ati kini giga ti o gun si - telemetry yoo han. ni kanna HTML iwe, Ni afikun, a nkan ti awọn ipade yoo han.
Питание
Gbogbo ẹwa ti a ṣalaye loke yoo jẹ agbara nipasẹ apejọ ti awọn batiri lithium ti a pejọ ni ibamu si Circuit 3S4B - mẹta ni jara, mẹrin ni afiwe. Lapapọ agbara jẹ nipa 14 Ah ni foliteji ti 12 V. Gẹgẹbi awọn iṣiro wa, eyi yẹ ki o to, ṣugbọn lẹhin igbimọ ikẹhin, dajudaju, a yoo ṣe iwọn lilo gangan, ati pe ti o ba jẹ dandan, fi awọn batiri diẹ sii.
Ṣafikun gbogbo awọn beakoni GPS yii, eyiti a yoo lo lati wa balloon stratospheric ti ilẹ. Ati apoti hermetic yoo jẹ “ile” fun olupin ati awọn ẹrọ miiran.
Yoo daabobo ohun elo elege lati iwọn otutu ati awọn iyipada titẹ. Ni akoko kanna, yoo tun dinku iwọn lilo itọsi, botilẹjẹpe eyi ko ṣe ipa eyikeyi fun iṣẹ akanṣe wa, olupin naa yoo fò ni stratosphere fun igba diẹ ju, ati lẹhin ko si ga bi lori ISS.
Ni afikun si fifiranṣẹ awọn ifiranṣẹ si , o le kopa ninu idije kan ki o gboju ibi ti iwadii yoo de. Ẹbun akọkọ jẹ irin ajo lọ si Baikonur fun ifilọlẹ ọkọ ofurufu Soyuz-MS-13 eniyan.
orisun: www.habr.com