Masiku angapo apitawo, SpaceX idapereka bwino openda zakuthambo awiri ku ISS pogwiritsa ntchito ndege ya Crew Dragon. Tsopano zadziwika kuti makina oyendetsa ndege a SpaceX Falcon 9 rocket, omwe adagwiritsidwa ntchito poyambitsa sitimayo ndi akatswiri oyenda mumlengalenga, amachokera ku Linux.
Chochitikachi ndi chofunikira pazifukwa ziwiri. Choyamba, kwa nthawi yoyamba m'zaka khumi, oyenda mumlengalenga adapita mumlengalenga kuchokera ku dothi la US. Kachiwiri, kukhazikitsidwa uku kunali koyamba m'mbiri kuti kampani yachinsinsi idapereka anthu mumlengalenga.
Malinga ndi zomwe zilipo, makina oyendetsa galimoto ya Falcon 9 akuyendetsa mtundu wa Linux wochotsedwa, womwe umayikidwa pamakompyuta atatu osafunikira omwe ali ndi mapurosesa apawiri-core x86. Mapulogalamu omwe amagwiritsidwa ntchito poyendetsa ndege ya Falcon 9 amalembedwa mu C/C++ ndipo amayendera padera pa kompyuta iliyonse. Rocket sifunikira mapurosesa apadera omwe amatetezedwa modalirika ku radiation, popeza gawo loyamba lobwerera limakhalabe mumlengalenga kwakanthawi kochepa. Kuonetsetsa ntchito yodalirika, redundancy yoperekedwa ndi makina atatu osafunikira makompyuta ndi okwanira.
Gwero silimatchula purosesa yomwe SpaceX imagwiritsa ntchito mu rocket yake, koma zitha kuwoneka kuti si mayankho atsopano komanso opindulitsa kwambiri omwe akukhudzidwa, chifukwa izi zimachitika nthawi zambiri. Mwachitsanzo, International Space Station idagwiritsa ntchito mapurosesa a Intel 80386SX okhala ndi ma frequency a 20 MHz kuyambira 1988. Mayankho awa akhala akugwiritsidwa ntchito pothandizira ma multiplexer ndi demultiplexer (C&C MDM) mapulogalamu, koma si abwino kwambiri kwa ntchito zina. M'moyo watsiku ndi tsiku, akatswiri a zakuthambo amagwiritsa ntchito ma laputopu a HP ZBook 15 omwe akuyendetsa Debian Linux, Scientific Linux ndi Windows 10. Makompyuta a Linux amagwiritsidwa ntchito ngati malo olumikizirana ndi C&C MDM, pomwe ma laputopu a Windows amagwiritsidwa ntchito powonera maimelo ndikusakatula pa intaneti ndi zosangalatsa.
Uthengawu umanenanso kuti galimoto yoyendetsa ndege isanakhazikitsidwe, mapulogalamu ndi zipangizo zomwe zimagwiritsidwa ntchito poyendetsa ndege zimayesedwa pa simulator yomwe imatha kuyerekezera zochitika zosiyanasiyana, kuphatikizapo zadzidzidzi. Ndizofunikira kudziwa kuti chombo cha Crew Dragon chimagwiritsanso ntchito makina oyendetsa pa Linux, pamodzi ndi mapulogalamu olembedwa mu C ++. Ponena za mawonekedwe omwe amlengalenga amalumikizana nawo, ndi pulogalamu yapaintaneti mu JavaScript. Gulu logwira ntchito lomwe limagwiritsidwa ntchito limapangidwanso ndi mawonekedwe a batani-batani ngati litalephera.
Source: 3dnews.ru