{"id":31332,"date":"2019-10-31T21:40:44","date_gmt":"2019-10-31T18:40:44","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-raskrutit-novichka-i-nichego-ne-slomat\/"},"modified":"2019-10-31T21:40:44","modified_gmt":"2019-10-31T18:40:44","slug":"kak-raskrutit-novichka-i-nichego-ne-slomat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/kak-raskrutit-novichka-i-nichego-ne-slomat","title":{"rendered":"Kuidas edendada algajat ja mitte midagi rikkuda","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Otsing, intervjuu, test\u00fclesanne, valik, t\u00f6\u00f6le asumine, kohandamine \u2014 see on keeruline ja meile k\u00f5igile arusaadav tee \u2014 nii t\u00f6\u00f6tajale kui ka t\u00f6\u00f6andjale.<\/p>\n

Algajal puuduvad vajalikud erialased oskused. Isegi kogenud spetsialist peab \u00fcmber kohanduma. Juhi jaoks on pidev surve, millised \u00fclesanded uuele t\u00f6\u00f6tajale alguses anda ja kui kaua nende t\u00e4itmiseks aega kulutada? Pealegi tuleb tagada huvi, kaasatus, energia ja integratsioon. Kuid mitte riskida \u00e4ri jaoks kriitiliste \u00fclesannetega.<\/p>\n

\"Kuidas
\n<\/a><\/noindex>
\nSelleks k\u00e4ivitame siseprojektid vahetuse vormis. Need koosnevad s\u00f5ltumatutest l\u00fchikestest etappidest. Selliste t\u00f6\u00f6de tulemused on aluseks edasistele arendustele ning v\u00f5imaldavad algajal end t\u00f5estada, kollektiivi huvitava \u00fclesande kaudu sisse sulanduda ja ilma riskita olulist projekti nurjata. Siin on kogemuste omandamine, tutvumine kolleegidega ja v\u00f5imalus end parimast k\u00fcljest n\u00e4idata, kui ei ole rangeid piiranguid p\u00e4randkoodilt.<\/p>\n

N\u00e4iteks sellise vahetusprojekti teemaks sai p\u00f6\u00f6rlepaneel, mis p\u00f5hineb stroboskoopilisel efektile ja millel on v\u00f5imalus kuvada seal juhuslikku kasutajapoolset d\u00fcnaamilist pilti, mis on valmistatud telefoni ekraanil. Protot\u00fc\u00fcpe saab leida. siin<\/a><\/noindex>.<\/p>\n

T\u00f6\u00f6d teostasid j\u00e4rjestikku mitmed t\u00f6\u00f6tajad ja neid j\u00e4tkatakse uute t\u00f6\u00f6tajate poolt nende sisseelamise ajal (kaks n\u00e4dalat kuni kuu, s\u00f5ltuvalt v\u00f5imetest ja oskustest).<\/p>\n

Etapid olid j\u00e4rgmised:<\/p>\n

a) konstrueerida \u00fclesehitus (uurides olemasolevaid n\u00e4idiseid, analoogide kirjeldusi, n\u00e4idates loomingulist algatust);<\/p>\n

b) v\u00e4lja t\u00f6\u00f6tada p\u00f5hi elektriskeem ja paigutada see plaadile;<\/p>\n

c) t\u00f6\u00f6tada v\u00e4lja protokoll pildi edastamiseks telefonist seadmesse;<\/p>\n

d) tagada juhtimine nutitelefoni kaudu Bluetooth LE kaudu.<\/p>\n

Alguses planeeriti kasutada midagi v\u00e4ga kompaktselt, nagu kolmelabaline spinner, mis k\u00e4sitsi p\u00f6\u00f6rates hakkas n\u00e4itama tekste. \u00dches labas asus BLE-modul, teises \u2013 k\u00fcmme RGB-LED-i, kolmandas optiline sensor, keskel \u2013 aku. Koostati p\u00f5hijoonis elektriskeemist ja tehti esimesed katsed. Selgus, et pildi kvaliteet on v\u00e4ga madal, eraldusv\u00f5ime v\u00e4ike, m\u00e4nguline efekt l\u00fchiajaline, v\u00f5imalused tagasihoidlikud. Ja spinnereid kadusid sama kiiresti, kui need ilmuvad. Otsustati t\u00f5sta lati k\u00f5rgust ja arendada v\u00e4lja p\u00f6\u00f6ratav strobeekraan. Seda v\u00e4hemalt saab kasutada praktilistel eesm\u00e4rkidel messidel ja konverentsidel ning l\u00e4hitulevikus ei kao huvi selliste lahenduste vastu.<\/p>\n

Konstruktsiooni osas oli peamised k\u00fcsimused kaks: kuidas paigutada LED-id (vertikaalses lennukis, nagu eespool n\u00e4idatud, v\u00f5i horisontaalses) ja kuidas toita p\u00f6\u00f6rlevat plaati LED-idega.<\/p>\n

Hariduslikel eesm\u00e4rkidel paigutati LED-id ainult horisontaalses lennukis. Mis puudutab plaadi toitmist, siis oli oluline valik: kas v\u00f5tta kollektorimootor, suur, m\u00fcrarikas, aga odav, v\u00f5i kasutada elegantsemat lahendust kontaktivaba toite\u00fclekande abil kahe m\u00e4hise l\u00e4bi \u2013 \u00fcks mootoris, teine plaadil. Lahendus on muidugi elegantne, kuid kallim ja aegan\u00f5udvam, kuna m\u00e4hised pidid esmalt arvutatud olema ja siis keritud (ideaalis mitte p\u00f5lvel).<\/p>\n

\"Kuidas
\nNii n\u00e4eb v\u00e4lja valminud protot\u00fc\u00fcp<\/i><\/p>\n

Masstootmise toote erip\u00e4ra seisneb selles, et iga liigse senti hindas on oluline. Edu v\u00f5ib s\u00f5ltuda k\u00e4put\u00e4ie passiivkomponentide maksumusest. Seet\u00f5ttu tuleb sageli valida v\u00e4hem efektiivne, kuid odavam variant, et tootja saaks s\u00e4ilitada kommertsv\u00f5ime. Seega, kujutades ette, et p\u00f6\u00f6rlev ekraan viiakse massitootmiseni, valis arendaja kollektorimootori.<\/p>\n

Saadud protot\u00fc\u00fcp k\u00e4ivitamisel s\u00e4hvatas, m\u00fcristas ja raputas lauda. Konstruktsioon, mis tagas stabiilsuse, osutus nii raskeks ja mahukaks, et seda seerianumbriks viimistlemine polnud m\u00f5tet. \u00dclemuse vahe-edusammude \u00fcle r\u00f5\u00f5mustades tehtud otsus oli asendada mootori p\u00f6\u00f6rdtransformaatoriga \u00f5huvahedega. Teiseks p\u00f5hjuseks oli mootorite toitmise v\u00f5imatus arvuti USB-pordist.<\/p>\n

LED-plaadi aluseks sai meie RM10 moodul ja kuus LED-draiverit. MBI5030<\/a><\/noindex>.<\/p>\n

Draiverid omavad 16 kanalit, v\u00f5imaldades igat neist s\u00f5ltumatult juhtida. Seega on 6 sellist draiverit ja 32 RGB-LED-lampi kokku v\u00f5imelised kuvama 16 miljonit v\u00e4rvi.<\/p>\n

Kuvamise ja stabiliseerimise s\u00fcnkroonimiseks kasutati kaht magnetresistatiivset Halli andurit. MRSS23E<\/a><\/noindex>.<\/p>\n

Plaan oli lihtne \u2013 andur genereerib katkestuse iga plaadi p\u00f6\u00f6rde kohta, kahe l\u00e4bimise vahel m\u00e4\u00e4ratakse LED-ide asukoht ning arvutatakse nende azimut ja valgus 360-kraadises skaneerimises.<\/p>\n

Aga midagi l\u00e4ks valesti \u2013 s\u00f5ltumata plaadi p\u00f6\u00f6rlemise kiirusest andis andur viseva perioodi jooksul kaootiliselt kas \u00fche v\u00f5i kaks katkestust. Seega kujutis osutus uduseks ja kokku varises enda sisse.<\/p>\n

Andurite vahetus ei muutnud olukorda, seet\u00f5ttu vahetati Halli andur fotorestaatori vastu.<\/p>\n

Kui kellelgi on m\u00f5tteid, miks magnetresistatiivne andur v\u00f5iks nii k\u00e4ituda, jagage palun kommentaarides.<\/p>\n

\"Kuidas
\nPlaadi \u00fclemine k\u00fclg<\/i><\/p>\n

Optilise anduriga on kujutis terav, kuid stabiliseerumine toimub umbes 30 sekundi jooksul. See juhtub mitmete p\u00f5hjuste t\u00f5ttu, millest \u00fcks on taimeri diskreetsus. See on 4 miljonit tikku sekundis, mis jagatakse 360 kraadi ja \u00fclej\u00e4\u00e4nud, mis toob kaasa moonutusi v\u00e4ljundpildis.<\/p>\n

Hiina stroboskoopilistes kellades seadistatakse kujutis m\u00f5ne sekundi jooksul, kuid selle hinnaks on see, et v\u00e4ike ringi segment lihtsalt ei kuvata: ringikujulises kujutises on t\u00fchi koht, tekstis peaaegu m\u00e4rkamatuks, kuid pilt j\u00e4\u00e4b osaliselt t\u00e4itmata.<\/p>\n

Siiski ei l\u00f5ppenud probleemid. Mikrokontroller nRF52832<\/a><\/noindex> ei suuda tagada vajalikku andmete edastamise kiirus v\u00f5imalikule varjundite arvule (umbes 16 MHz) \u2013 ekraan kuvab \u00fche kaadri sekundis, mida inimese silm ei suuda taluda. Ilmselt on vajalik paigaldada arendustehnole eraldi mikrokontroller pildi juhtimiseks, kuid seni on otsustatud asendada MBI5030 MBI5039<\/a><\/noindex>. See on vaid 7 v\u00e4rvi, sealhulgas valge, kuid seda piisab tarkvarahanke osas.<\/p>\n

Ja mitte v\u00e4hemt\u00e4htis, miks seda haridusprojekti \u00fcldse planeeriti \u2013 programmeerida mikrokontrollerit ja teostada juhtimist nutitelefoni rakenduse kaudu.<\/p>\n

Praegu edastatakse skaneering Bluetoothi kaudu otse nRF Connecti kaudu ning rakenduse liides on arendamisel.<\/p>\n

Seega on vahepealsed tulemused teatejooksu meeskonna j\u00e4rgmised:<\/p>\n

Rotaatoril on 32 LED-i ja kujutise diameeter on 150 mm. See kuvab 7 v\u00e4rvi, seadistab kujutise v\u00f5i teksti 30 sekundi jooksul (mis pole ideaalne, kuid alguseks on vastuv\u00f5etav). Bluetooth-\u00fchenduse kaudu on v\u00f5imalik anda k\u00e4sk pildi vahetamiseks.<\/p>\n

\"Kuidas
\nNii see v\u00e4lja n\u00e4eb<\/i><\/p>\n

Ja noortele arendajatele, et nad edukalt \u00f5ppida saaksid, j\u00e4\u00e4b lahendada j\u00e4rgmised \u00fclesanded:<\/p>\n

\u00dcletada mikrokontrolleri m\u00e4luprobleem, et v\u00f5imaldada t\u00e4isv\u00e4rvilist v\u00e4rvide paleti kuvamist. T\u00e4iustada rakendust staatilise v\u00f5i d\u00fcnaamilise pildi genereerimiseks ja edastamiseks. Andke konstruktsioonile l\u00f5petatud v\u00e4limus. Hoidke teid kursis.<\/p>\n

P.S. Muidugi, p\u00e4rast Bluetooth LE (nrf52832<\/a><\/noindex>) toimingute l\u00f5petamist projekteerime ja rakendame Wi-Fi\/Bluetooth versiooni ESP32-l. Kuid see on juba uus lugu.
\n\"Kuidas
\n
Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Algajal puuduvad vajalikud spetsialiseeritud oskused.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/kak-raskrutit-novichka-i-nichego-ne-slomat","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041a\u0430\u043a \u0440\u0430\u0441\u043a\u0440\u0443\u0442\u0438\u0442\u044c \u043d\u043e\u0432\u0438\u0447\u043a\u0430 \u0438 \u043d\u0438\u0447\u0435\u0433\u043e \u043d\u0435 \u0441\u043b\u043e\u043c\u0430\u0442\u044c | ProHoster","og:description":"\u041f\u043e\u0438\u0441\u043a, 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