1: Yini i-LED?
I-LED isifinyezo se-light emitting diode.I-“LED” embonini yokubonisa ibhekisela ku-LED engakhipha ukukhanya okubonakalayo
2: Yini i-pixel?
Iphikseli encane ekhanyayo yesibonisi se-LED inencazelo efanayo nethi “pixel” kusibonisi sekhompyutha esijwayelekile;
3: Siyini isikhala se-pixel (isikhala samachashazi)?
Ibanga ukusuka enkabeni yephikseli eyodwa ukuya enkabeni yenye pixel;
4: Ithini imojula yesibonisi se-LED?
Iyunithi encane kakhulu enamaphikseli esibonisi ambalwa, azimele ngokwesakhiwo futhi angakha isikrini sokubonisa se-LED.Okujwayelekile “8 × 8”, “5 × 7”, “5 × 8 “, njll., ingahlanganiswa ibe amamojula ngokusebenzisa amasekhethi nezakhiwo ezithile;
5: Yini i-DIP?
I-DIP isifinyezo se-Double In-line Package, okuhlanganisa okukabili emgqeni;
6: Yini i-SMT?Yini i-SMD?
I-SMT isifinyezo se-Surface Mounted Technology, okuwubuchwepheshe nenqubo ethandwa kakhulu embonini yokuhlanganisa i-electronics okwamanje;I-SMD isifinyezo sedivayisi efakwe phezulu
7: Ithini imojula yesibonisi se-LED?
Uhlu oluyisisekelo olunqunywa umjikelezo nesakhiwo sokufakwa, nomsebenzi wokubonisa, futhi okwazi ukubona umsebenzi wokubonisa ngokuhlanganisa okulula
8: Kuyini isibonisi se-LED?
Bonisa isikrini esakhiwe ngohlelo lwedivayisi ye-LED ngemodi ethile yokulawula;
9: Ithini i-plug-in module?Yiziphi izinzuzo nezingozi?
Kubhekiselwa ekutheni isibani esihlanganisiwe se-DIP sidlulisa iphinikhodi yesibani ebhodini le-PCB bese sigcwalisa ithini embotsheni yesibani ngokushisela.Imojula eyenziwe yile nqubo i-plug-in module;Izinzuzo ziyi-angle yokubuka enkulu, ukukhanya okuphezulu kanye nokukhipha ukushisa okuhle;Okubi ukuthi ukuminyana kwe-pixel kuncane;
10: Ithini imojuli yokunamathisela okungaphezulu?Yiziphi izinzuzo nezingozi?
I-SMT ibizwa nangokuthi i-SMT.Isibani esipakishwe yi-SMT sishiselwe ebusweni be-PCB ngenqubo yokushisela.Unyawo lwesibani aludingi ukudlula ku-PCB.Imojula eyenziwe yile nqubo ibizwa nge-SMT module;Izinzuzo yilezi: i-engeli enkulu yokubuka, isithombe esithambile sokubonisa, ukuminyana kwe-pixel ephezulu, ifanele ukubukwa kwangaphakathi;Okubi ukuthi ukukhanya akuphakeme ngokwanele futhi ukuchithwa kokushisa kwe-tube yesibani ngokwayo akulungile ngokwanele;
11: Ithini imojuli yesitikha esingaphansi komhlaba?Yiziphi izinzuzo nezingozi?
Isitika esingaphansi komhlaba siwumkhiqizo ophakathi kwe-DIP ne-SMT.Indawo yokupakisha yesibani sayo se-LED iyafana naleyo ye-SMT, kodwa izikhonkwane zayo ezinhle nezingezinhle ziyefana nalezo ze-DIP.Iphinde ifakwe nge-PCB ngesikhathi sokukhiqiza.Izinzuzo zayo yilezi: ukukhanya okuphezulu, umphumela omuhle wokubonisa, kanye nebubi bayo: inqubo eyinkimbinkimbi, ukugcinwa okunzima;
12: Uyini u-3 ku-1?Yiziphi izinzuzo nezingozi zayo?
Isho ukupakisha ama-chips e-LED emibala ehlukene u-R, G no-B kujeli efanayo;Izinzuzo yilezi: ukukhiqiza okulula, umphumela omuhle wokubonisa, kanye nokubi: ukuhlukaniswa kombala okunzima kanye nezindleko eziphezulu;
13: Uyini u-3 no-1?Yiziphi izinzuzo nezingozi zayo?
Oku-3 koku-1 kwaqalwa kwasungulwa futhi kwasetshenziswa inkampani yethu embonini efanayo.Isho ukuhlangana okuqondile kwamalambu e-SMT amathathu ahlanganiswe ngokuzimele R, G no-B ngokuya ngebanga elithile, elingagcini nje ngokuba nazo zonke izinzuzo zokungu-3 koku-1, kodwa futhi elixazulula zonke izinkinga zokungu-3 ku-1;
14: Yiziphi izibonisi ezinombala ombaxambili, umbala-mbumbulu kanye nezibonisi ezinombala ogcwele?
I-LED enemibala ehlukene ingakha izikrini zokubonisa ezihlukene.Umbala oyinhloko ophindwe kabili wakhiwe ngemibala ebomvu, eluhlaza noma ophuzi-oluhlaza, umbala wamanga uhlanganiswe nemibala ebomvu, ephuzi-eluhlaza okwesibhakabhaka, futhi umbala ogcwele uhlanganiswe nemibala ebomvu, eluhlaza okumsulwa kanye nemibala eluhlaza okwesibhakabhaka;
15: Ithini incazelo yamandla okukhanya (ukukhanya)?
Amandla okukhanya (ukukhanya, I) kuchazwa njengokukhanya okukhanyayo komthombo wokukhanya wephoyinti ohlangothini oluthile, okungukuthi, inani lokukhanya elikhishwa umzimba okhanyayo ngesikhathi seyunithi, okuphinde kubizwe ngokuthi ukukhanya.Iyunithi evamile yi-candela (cd, candela).Ikhandlela lamazwe ngamazwe lichazwa njengokukhanya okuphuma ngokushisa ikhandlela elakhiwe ngamafutha omkhomo ngamagremu angu-120 ngehora.Igremu elilodwa lokubanda lilingana no-0.0648 amagremu
16: Iyini iyunithi yokukhanya okukhanyayo (ukukhanya)?
Iyunithi evamile yokuqina okukhanyayo yi-candela (cd, candela).I-candela ejwayelekile yamazwe ngamazwe (lcd) ichazwa njengokukhanya okungu-1/600000 ekuqondeni okuqondile kumuntu omnyama (indawo yawo engaphezulu ingu-1m2) lapho i-blackbody efanelekile isezingeni lokushisa le-platinum (1769 ℃).Okubizwa ngokuthi i-blackbody ekahle kusho ukuthi ukukhishwa kwento kufana no-1, futhi amandla athathwe into angakhipha ngokuphelele, ukuze izinga lokushisa lihlale lifana futhi ligxilile, Ubudlelwane bokushintshaniswa phakathi kwe-candela ejwayelekile yamazwe ngamazwe kanye nendala. ikhandlela elijwayelekile yikhandlela elingu-1=0.981
17: Kuyini ukuguquguquka okukhanyayo?Iyini iyunithi ye-luminous flux?
I-Luminous flux ( φ） Incazelo yokuthi: amandla akhishwa umthombo wokukhanya wephoyinti noma umthombo wokukhanya ongelona iphuzu ngesikhathi seyunithi, lapho umuntu obonakalayo (ukuguquguquka kwemisebe abantu abangakuzwa) kubizwa ngokuthi i-luminous flux.Iyunithi ye-flux ekhanyayo i-lumen (efushanisiwe ngokuthi lm), futhi i-lumen engu-1 (ilumen noma i-lm) ichazwa njengokugeleza okukhanyayo okudluliswa umthombo wokukhanya wekhandlela ojwayelekile kuyunithi ye-engeli eqinile ye-arc.Njengoba yonke indawo eyindilinga ingu-4 π R2, ukukhanya okukhanyayo kwelume elilodwa kulingana no-1/4 π we-flux ekhanyayo ekhishwa ikhandlela elilodwa, noma indawo eyindilinga ino-4 π, ngakho-ke ngokwencazelo ye-lumen, iphuzu. umthombo wokukhanya we-cd uzokhipha ama-lumens angu-4 π, okungukuthi φ (lumen)=4 π I (ukukhanya kwekhandlela), kucatshangwa ukuthi △ Ω i-engeli encane eqinile ye-arc, ukukhanya okukhanyayo △ ku-△ Ω i-engeli eqinile φ， △ φ= △Ω I
18: Lisho ukuthini ikhandlela elilodwa lonyawo?
Ikhandlela elilodwa lonyawo libhekisela ekukhanyeni endizeni okuqhele ngonyawo olulodwa emthonjeni wokukhanya (umthombo wokukhanya wephoyinti noma umthombo wokukhanya ongelona iphuzu) kanye ne-orthogonal ekukhanyeni, okufushaniswe ngokuthi 1 ftc (1 lm/ft2, lumens). /ft2), okungukuthi, ukukhanya lapho ukukhanya okukhanyayo okutholwa ngonyawo lwesikwele ngalunye kungu-1 lumen, kanye no-1 ftc=10.76 lux
19: Isho ukuthini ikhandlela lemitha elilodwa?
Ikhandlela lemitha elilodwa libhekisela ekukhanyeni endizeni imitha elilodwa kude nomthombo wokukhanya wekhandlela elilodwa (umthombo wokukhanya wephoyinti noma umthombo wokukhanya ongewona iphuzu) kanye ne-orthogonal ekukhanyeni, okubizwa ngokuthi i-lux (ebuye ibhalwe njenge-lx), okungukuthi. , ukukhanya lapho ukukhanya okukhanyayo okutholwa imitha yesikwele ngayinye kungu-1 lumen (lumen/m2)
Usho ukuthini u-20:1 lux?
Ukukhanya lapho ukukhanya okukhanyayo okutholwa ngemitha yesikwele ngayinye kuyi-lumen engu-1
21: Ithini incazelo yokukhanya?
Ukukhanya (E) kuchazwa njengokugeleza okukhanyayo okwamukelwe iyunithi yendawo ekhanyisiwe yento ekhanyisiwe, noma ukukhanya okwamukelwe into ekhanyisiwe endaweni yeyunithi ngayinye ngesikhathi seyunithi, evezwa ngamakhandlela angamamitha noma amakhandlela onyawo (ftc)
22: Buyini ubudlelwano phakathi kokukhanya, ukukhanya kanye nebanga?
Ubudlelwano phakathi kokukhanya, ukukhanya kanye nebanga: E (illuminance)=I (ukukhanya)/r2 (isikwele sebanga)
23: Yiziphi izici ezihlobene nokukhanya kwesihloko?
Ukukhanya kwento kuhlobene namandla okukhanya omthombo wokukhanya kanye nebanga phakathi kwento nomthombo wokukhanya, kodwa hhayi kumbala, indawo engaphezulu nendawo engaphezulu yento.
24: Ithini incazelo yokusebenza kahle kokukhanya (lumen/watt, lm/w)?
Isilinganiso sengqikithi ye-flux ekhanyayo ekhishwa umthombo wokukhanya emandleni kagesi asetshenziswe umthombo wokukhanya (W) kubizwa ngokuthi ukusebenza kahle okukhanyayo komthombo wokukhanya.
25: Kuyini izinga lokushisa lombala?
Lapho umbala okhishwa umthombo wokukhanya ufana nombala okhishwa yi-blackbody ezingeni lokushisa elithile, izinga lokushisa lomzimba omnyama liyizinga lokushisa lombala.
26: Kuyini ukukhanya okukhanyayo?
Amandla okukhanya endaweni ngayinye yesikrini sokubonisa se-LED, ku-cd/m2, kumane nje kuwubukhulu bokukhanya imitha yesikwele ngayinye yesikrini sokubonisa;
27: Liyini izinga lokukhanya?
Izinga lokulungiswa okwenziwa ngesandla noma okuzenzakalelayo phakathi kokukhanya okuphansi nokuphezulu kakhulu kwesikrini sonke
28: Siyini isikali esimpunga?
Ezingeni elifanayo lokukhanya, izinga lokucubungula lobuchwepheshe lesikrini sokubonisa ukusuka kokumnyama kakhulu ukuya kokugqama kakhulu;
29: Kuyini umehluko?
Isilinganiso somnyama kuya kwabamhlophe, okungukuthi, ukukhuphuka kancane kancane kusuka kokumnyama kuye kokumhlophe.Uma isilinganiso sikhulu, i-graded isuka kokumnyama iye komhlophe, kanye nokunotha kombala omelelayo.Embonini yeprojektha, kunezindlela ezimbili zokuhlola umehluko.Enye indlela yokuhlola ukugqama evulekile ngokugcwele/evala ngokugcwele, okungukuthi, ukuhlola isilinganiso sokukhanya kwesikrini esimhlophe esigcwele kuya ekukhishweni kwesikrini esimnyama esigcwele ngeprojektha.Okunye ukugqama kwe-ANSI, esebenzisa indlela yokuhlola evamile ye-ANSI ukuze ihlole ukugqama.Indlela yokuhlola yokuqhathanisa ye-ANSI isebenzisa amabhulokhi anombala omnyama nomhlophe onamaphuzu ayi-16.Isilinganiso esiphakathi kokukhanya okumaphakathi kwezindawo ezimhlophe eziyisishiyagalombili kanye nokukhanya okumaphakathi kwezindawo ezimnyama eziyisishiyagalombili ukugqama kwe-ANSI.Amanani okuqhathanisa atholwe yilezi zindlela ezimbili zokulinganisa ahluke kakhulu, okuphinde kube isizathu esibalulekile somehluko omkhulu ekuhlukeni okuncane kwemikhiqizo evela kubakhiqizi abahlukene.Ngaphansi kokukhanya okuthile kwe-ambient, lapho imibala eyinhloko yesikrini sokubonisa se-LED isezingeni eliphezulu lokukhanya kanye nezinga eliphezulu elimpunga.
30: Iyini i-PCB?
I-PCB iphrintiwe ibhodi lesifunda;
31: Yini i-BOM?
I-BOM ibhili yezinto zokwakha (isifinyezo soMthethosivivinywa wezinto ezibonakalayo);
32: Kuyini ibhalansi emhlophe?Iyini ibhalansi emhlophe?
Ngebhalansi emhlophe, sisho ibhalansi yokumhlophe, okungukuthi, ibhalansi yokukhanya kuka-R, G no-B esilinganisweni sika-3:6:1;Ukulungiswa kwesilinganiso sokukhanya nezixhumanisi ezimhlophe zemibala engu-R, G no-B kubizwa ngokuthi ukulungiswa kwebhalansi emhlophe;
33: Kuyini umehluko?
Isilinganiso sokukhanya okuphezulu kwesikrini sokubonisa se-LED kuya ekukhanyeni kwangemuva ngaphansi kokukhanya okuthile kwe-ambient;
34: Iyini imvamisa yokushintsha uhlaka?
Inani lezikhathi lapho ulwazi lwesikrini esibonisiwe lubuyekezwa ngalo ngesikhathi seyunithi ngayinye;
35: Lithini izinga lokuvuselela?
Inombolo yezikhathi lapho isikrini sokubonisa siboniswa ngokuphindaphindiwe isikrini sokubonisa;
36: Buyini ubude begagasi?
I-Wavelength ( λ) : Ibanga eliphakathi kwamaphoyinti ahambisanayo noma ibanga phakathi kweziqongo ezimbili eziseduze noma izigodi ezikhathini ezimbili eziseduze ngesikhathi sokusabalala kwamagagasi, ngokuvamile ku-mm
37: Siyini isixazululo
Umqondo wokulungiswa umane ubhekisele enanini lamaphoyinti aboniswa ngokuvundlile nangokuqondile esikrinini
38: Uyini umbono?Ithini i-engeli ebonakalayo?Imuphi umbono ongcono kakhulu?
I-engeli yokubuka i-engeli ephakathi kwezikhombisi-ndlela ezimbili zokubuka endizeni eyodwa kanye nesiqondisindlela esivamile lapho ukukhanya kwesiqondisindlela sokubuka kwehla kuya ku-1/2 wendlela evamile yesibonisi se-LED.Ihlukaniswe ngemibono evundlile neqondile;I-engeli ebukekayo i-engeli ephakathi kwesiqondisindlela sokuqukethwe kwesithombe esikrinini esiboniswayo kanye nokujwayelekile kwesikrini sokubonisa;I-engeli engcono kakhulu yokubuka i-engeli ephakathi kwesiqondiso esicacile sokuqukethwe kwesithombe kanye nomugqa ovamile;
39: Iliphi ibanga elingcono kakhulu lokubona?
Kubhekiselwa ebangeni eliqondile phakathi kwendawo ecace kakhulu yokuqukethwe kwesithombe kanye nendikimba yesikrini, engabona nje okuqukethwe esikrinini ngokuphelele ngaphandle kokuchezuka kombala;
40: Kuyini iphuzu lokulahlekelwa ukulawula?Mangaki?
Amaphikseli isimo sawo sokukhanya esingahambisani nezidingo zokulawula;Izindawo ezingaphandle kokulawula zihlukaniswe: indawo eyimpumputhe (eyaziwa nangokuthi indawo efile), indawo ekhanyayo engaguquki (noma ibala elimnyama), kanye nephoyinti elikhanyayo;
41: Iyini i-static drive?Iyini i-scan drive?Uyini umehluko phakathi kwalokhu okubili?
Ukulawula “iphoyinti ukuya kuphoyinti” kusuka kuphinikhodi yokukhipha ye-IC yokushayela kuya kuphikseli kubizwa ngokuthi ukushayela okumile;Ukulawula "iphoyinti kuya kukholomu" kusuka kuphinikhodi yokukhipha ye-IC yedrayivu kuya endaweni ye-pixel kubizwa ngokuthi idrayivu yokuskena, edinga umjikelezo wokulawula umugqa;Kungabonakala ngokucacile ebhodini lokushayela ukuthi i-static drive ayidingi isifunda sokulawula umugqa, futhi izindleko ziphakeme, kodwa umphumela wokubonisa muhle, ukuzinza kuhle, nokulahlekelwa kokukhanya kuncane;Idrayivu yokuskena idinga umjikelezo wokulawula umugqa, kodwa izindleko zayo ziphansi, umphumela wokubonisa umpofu, ukuzinza akulungile, ukulahlekelwa kokukhanya kukhulu, njll;
42: Iyini idrayivu yamanje yamanje?Iyini i-pressure drive eqhubekayo?
I-Constant current isho inani lamanje elicaciswe ekwakhiweni kokuphumayo okuqhubekayo ngaphakathi kwendawo yokusebenza evumelekile yedrayivu IC;I-voltage engaguquguquki isho inani lamandla kagesi elishiwo ekwakhiweni kokuphuma okungashintshi kwendawo yokusebenza evumelekile ye-IC yokushayela;
43: Kuyini ukulungiswa okungaqondile?
Uma ukuphuma kwesiginali yedijithali yikhompuyutha kuboniswa esikrinini se-LED ngaphandle kokulungiswa, ukuhlanekezela kombala kuzokwenzeka.Ngakho-ke, kumjikelezo wokulawula uhlelo, isignali edingekayo esikrinini sokubonisa esibalwe isignali yokukhishwa kwekhompuyutha yasekuqaleni ngokusebenzisa umsebenzi ongewona umugqa ngokuvamile ubizwa ngokuthi ukulungiswa okungahambisani nomugqa ngenxa yobudlelwane obungaqondile phakathi kwezimpawu zangaphambili nangemuva;
44: Ingakanani i-voltage yokusebenza elinganiselwe?Ithini i-voltage esebenzayo?Iyini i-voltage yokuhlinzeka?
I-voltage elinganiselwe yokusebenza ibhekisela ku-voltage lapho into esebenza ngogesi isebenza ngokujwayelekile;Amandla kagesi asebenzayo asho inani lamandla kagesi elisebenza ngaphansi kokusebenza okujwayelekile phakathi kwebanga likagesi elilinganiselwe;I-voltage yokuphakelwa kwamandla ihlukaniswe nge-voltage kagesi ye-AC ne-DC.I-voltage kagesi ye-AC yesikrini sethu sokubonisa i-AC220V ~ 240V, futhi i-voltage yokuphakelwa kwamandla ka-DC ingu-5V;
45: Kuyini ukuhlanekezela kombala?
Isho umehluko phakathi komqondo weso lomuntu kanye nokubona lapho into efanayo iboniswa emvelweni kanye nasesikrinini esiboniswayo;
46: Ayini amasistimu okuvumelanisa nezinhlelo ze-asynchronous?
Ukuvumelanisa kanye ne-asynchrony kuhlobene nalokho okushiwo amakhompyutha.Okubizwa ngokuthi uhlelo lokuvumelanisa lubhekisela ohlelweni lokulawula isibonisi se-LED ukuthi okuqukethwe okuboniswa esikrinini sokubonisa kanye nesibonisi sekhompyutha kuyavumelaniswa;Uhlelo olungavumelanisi lusho ukuthi idatha yesibonisi ehlelwe yikhompuyutha igcinwa ohlelweni lokulawula isikrini kusengaphambili, futhi ukuboniswa okuvamile kwesikrini se-LED ngeke kuthinteke ngemva kokuba ikhompuyutha icishiwe.Uhlelo olunjalo lokulawula luyi-asynchronous system;
47: Buyini ubuchwepheshe bokubona indawo eyimpumputhe?
Indawo eyi-blind spot (i-LED open circuit kanye ne-short circuit) esikrinini singatholwa nge-software yekhompyutha ephezulu kanye ne-hardware engaphansi, futhi kungakhiwa umbiko ukuze kutshelwe umphathi wesikrini se-LED.Ubuchwepheshe obunjalo bubizwa ngokuthi ubuchwepheshe bokubona indawo eyimpumputhe;
48: Kuyini ukutholwa kwamandla?
Ngesofthiwe yekhompuyutha ephezulu kanye nezingxenyekazi zekhompuyutha ezingezansi, ingakwazi ukubona izimo zokusebenza zokunikezwa kwamandla ngakunye esikrinini esibonisiwe bese yenza umbiko ukutshela umphathi wesikrini se-LED.Ubuchwepheshe obunjalo bubizwa ngokuthi ubuchwepheshe bokubona amandla
49: Kuyini ukutholakala kokukhanya?Kuyini ukulungiswa kokukhanya?
Ukukhanya ekutholeni ukukhanya kubhekisela ekukhanyeni kwe-ambient kwesikrini sesibonisi se-LED.Ukukhanya kwe-ambient kwesikrini sokubonisa kutholwa inzwa yokukhanya.Le ndlela yokuthola ibizwa ngokuthi ukutholwa kokukhanya;Ukukhanya ekulungiseni ukukhanya kubhekisela ekukhanyeni kokukhanya okukhishwa isibonisi se-LED.Idatha etholiwe ibuyiselwa ohlelweni lokulawula isibonisi se-LED noma ikhompuyutha yokulawula, bese ukukhanya kwesibonisi kulungiswa ngokwale datha, okubizwa ngokuthi ukulungiswa kokukhanya.
50: Iyini iphikseli yangempela?Yini i-pixel ebonakalayo?Mangaki amaphikseli abonakalayo akhona?Kuyini ukwabelana nge-pixel?
Iphikseli yangempela isho ubudlelwano obungu-1:1 phakathi kwenani lamaphikseli aphathekayo esikrinini esibonisiwe kanye nenani lamaphikseli abonisiwe ngempela.Inombolo yangempela yamaphoyinti kusikrini sokubonisa ingabonisa kuphela ulwazi lwesithombe lokuthi mangaki amaphuzu;Iphikseli ebonakalayo isho ubudlelwano phakathi kwenani lamaphikseli abonakalayo esikrinini esibonisiwe kanye nenani lamaphikseli angempela abonisiwe ngu-1: N (N=2, 4).Ingabonisa amaphikseli esithombe aphindwe kabili noma kane kunamaphikseli angempela esikrinini sokubonisa;Amaphikseli abonakalayo angahlukaniswa abe isoftware ebonakalayo kanye ne-hardware ebonakalayo ngokuya ngemodi yokulawula ebonakalayo;Ingahlukaniswa izikhathi ezi-2 ezibonakalayo kanye nezikhathi ezingu-4 ezibonakalayo ngokuvumelana nobudlelwane obuningi, futhi ingahlukaniswa ibe yi-1R1G1B ebonakalayo kanye ne-2R1G1GB ebonakalayo ngokwendlela yokuhlela izibani kumojuli;
51: Kuyini isilawuli kude?Ngaphansi kwaziphi izimo?
Lokhu okubizwa ngebanga elide akulona ngempela ibanga elide.Isilawuli kude sihlanganisa ukuphela kokulawula okuyinhloko kanye nesiphetho esilawulwayo ku-LAN, futhi ibanga lesikhala alikude;Futhi isiphetho esikhulu sokulawula kanye nesiphetho esilawulwayo ngaphakathi kwebanga lesikhala esithe ukuqhathaniswa;Uma ikhasimende licela noma indawo yokulawula yekhasimende idlula ibanga elilawulwa ngokuqondile yi-optical fibre, isilawuli kude sizosetshenziswa;
52: Kuyini ukuhanjiswa kwefiber optical?Kuyini ukudluliswa kwekhebula lenethiwekhi?
Ukuhanjiswa kwe-fiber optical ukuguqula amasignali kagesi abe amasignali optical futhi asebenzise i-glass fiber esobala ukuze idluliselwe;Ukudluliswa kwentambo yenethiwekhi ukudluliselwa okuqondile kwezimpawu zikagesi kusetshenziswa izintambo zensimbi;
53: Ngiyisebenzisa nini intambo yenethiwekhi?Isetshenziswa nini i-optical fiber?
Lapho ibanga phakathi kwesikrini sokubonisa kanye nekhompyutha yokulawula
54: Kuyini ukulawula kwe-LAN?Kuyini ukulawulwa kwe-inthanethi?
Ku-LAN, ikhompuyutha eyodwa ilawula enye ikhompuyutha noma amadivaysi angaphandle axhunywe kuyo.Le ndlela yokulawula ibizwa nge-LAN control;Isilawuli esiyinhloko sifeza inhloso yokulawula ngokufinyelela ikheli lasesizindeni se-inthanethi lesilawuli ku-inthanethi, elibizwa ngokuthi ukulawulwa kwe-inthanethi.
55: Yini i-DVI?Iyini i-VGA?
I-DVI isifinyezo se-Digital Video Interface, okungukuthi, isikhombimsebenzisi sevidiyo yedijithali.Kuyidijithali yesignali yevidiyo esetshenziswayo njengamanje emhlabeni jikelele;Igama eliphelele lesiNgisi le-VGA yi-Video Graphic Array, okungukuthi, uhlu lwezithombe eziboniswayo.Kuyi-interface yesignali yevidiyo ye-analogi engu-R, G no-B;
56: Iyini isignali yedijithali?Iyini isekethe yedijithali?
Isignali yedijithali isho ukuthi inani le-amplitude yesiginali lihlukile, futhi ukumelwa kwe-amplitude kukhawulelwe ku-0 no-1;Umjikelezo wokucubungula nokulawula amasignali anjalo ubizwa ngokuthi i-digital circuit;
57: Yini isignali ye-analog?Iyini isifunda se-analog?
Isignali ye-analog isho ukuthi inani lokuphakama kwesignali liyaqhubeka ngesikhathi;Isekhethi ecubungula futhi elawula lolu hlobo lwesiginali ibizwa nge-analog circuit;
58: Iyini i-PCI slot?
I-PCI slot iyi-slot yokwandisa esekelwe kubhasi lendawo le-PCI (i-peripheral component expansion interface).I-PCI slot iyisikhala esikhulu sokunwetshwa sebhodi lomama.Ngokuxhuma amakhadi okunweba ahlukene, cishe yonke imisebenzi yangaphandle engatholwa yikhompyutha yamanje ingatholakala;
59: Siyini i-AGP slot?
Isixhumi esibonakalayo esisheshisiwe.I-AGP iwukucaciswa kwesixhumi esibonakalayo okwenza ihluzo ze-3D ziboniswe ngesivinini esisheshayo kumakhompyutha omuntu ajwayelekile.I-AGP iyisixhumi esibonakalayo esenzelwe ukudlulisa izithombe ze-3D ngokushesha nangokushelela.Isebenzisa inkumbulo eyinhloko yekhompuyutha yomuntu siqu evamile ukuze ivuselele isithombe esiboniswe esibonisini, futhi isekela ubuchwepheshe bezithombe ze-3D obufana nemephu yokuthungwa, i-zero buffering kanye nokuhlanganisa i-alpha.
60: Iyini i-GPRS?Iyini i-GSM?Yini i-CDMA?
I-GPRS yiGeneral Packet Radio Service, insizakalo entsha yabathwali ethuthukiswe ohlelweni olukhona lwe-GSM, olusetshenziselwa kakhulu ukuxhumana ngomsakazo;I-GSM isifinyezo sezinga le-“GlobalSystemForMobileCommunication” (Global Mobile Communication System) eyethulwe ngokufanayo yiKhomishini YaseYurophu Yokumisa Ngo-1992. Isebenzisa ubuchwepheshe bezokuxhumana obudijithali kanye namazinga enethiwekhi ahlanganisiwe ukuze kuqinisekiswe ikhwalithi yokuxhumana futhi ingathuthukisa izinsiza ezintsha ezengeziwe kubasebenzisi. .I-Code Division Multiple Access iwubuchwepheshe obusha nobuvuthiwe bokuxhumana okungenazintambo obusekelwe kubuchwepheshe be-spread spectrum;
61: Kuyini ukusetshenziswa kobuchwepheshe be-GPRS kwizikrini zokubonisa?
Kunethiwekhi yedatha ye-GPRS esekelwe ekukhulumisaneni kweselula, idatha yesibonisi sethu se-LED idluliswa nge-module ye-transceiver ye-GPRS, ekwazi ukubona inani elincane lokudluliswa kwedatha ye-remote point-to-point!Ukufeza inhloso yesilawuli kude;
62: Kuyini ukuxhumana kwe-RS-232, ukuxhumana kwe-RS-485, nokuxhumana kwe-RS-422?Yiziphi izinzuzo zento ngayinye?
RS-232;RS-485;I-RS422 iyindinganiso yesixhumi esibonakalayo sokuxhumana kwamakhompyutha
Igama eliphelele le-RS-232 standard (iphrothokholi) yizinga le-EIA-RS-232C, lapho i-EIA (Electronic Industry Association) imele i-American Electronic Industry Association, i-RS (izinga elinconyiwe) imele izinga elinconyiwe, 232 inombolo kamazisi, futhi C imele ukubuyekezwa kwakamuva kwe-RS232
Inani lezinga lesiginali le-RS-232 interface liphezulu, okulula ukulimaza i-chip yesekethe yesixhumi esibonakalayo.Izinga lokudlulisela liphansi, futhi ibanga lokudlulisela lilinganiselwe, ngokuvamile lingaphakathi kwama-20M.
I-RS-485 inebanga lokuxhumana elingamashumi amamitha ukuya ezinkulungwaneni zamamitha.Isebenzisa ukudluliswa okulinganiselwe kanye nokwamukela okuhlukile.I-RS-485 ilungele kakhulu ukuxhumanisa amaphuzu amaningi.
Ibhasi le-RS422, i-RS485 kanye ne-RS422 amasekethe ayafana ngokuyisisekelo.Zithunyelwa futhi zemukelwe ngemodi ehlukile, futhi azidingi ucingo olusemhlabathini lwedijithali.Ukusebenza okuhlukile kuyisizathu esibalulekile sebanga elide lokudlulisela ngenani elifanayo, okuwumehluko oyisisekelo phakathi kwe-RS232 ne-RS232, ngoba i-RS232 iwukufaka nokuphumayo okukhawulelwe okukodwa, futhi okungenani intambo yaphansi yedijithali iyadingeka ekusebenzeni kwe-duplex.Ulayini wokuthumela kanye nolayini owamukelayo yimigqa emithathu (i-asynchronous transmission), kanti eminye imigqa yokulawula ingangezwa ukuze kuqedelwe ukuvumelanisa neminye imisebenzi.
I-RS422 ingasebenza nge-duplex egcwele ngaphandle kokuthintana ngamapheya amabili amapheya asontekile, kuyilapho i-RS485 ingasebenza kuphela nge-half duplex.Ukuthumela nokwamukela akukwazi ukwenziwa ngesikhathi esifanayo, kodwa kudinga ipheya elilodwa kuphela lamapheya asontekile.
I-RS422 kanye ne-RS485 ingakwazi ukudlulisa amamitha angu-1200 ku-19 kpbs.Amadivayisi angaxhunywa kulayini omusha we-transceiver.
63: Luyini uhlelo lwe-ARM?Embonini ye-LED, yini ukusetshenziswa kwayo?
I-ARM (Advanced RISC Machines) yinkampani ekhethekile ekwakhiweni nasekuthuthukisweni kwama-chips asuselwa kubuchwepheshe be-RISC (Reduced Instruction Set Computer).Kungabhekwa njengegama lenkampani, igama elijwayelekile lekilasi lama-microprocessors, kanye negama lobuchwepheshe.Uhlelo lokulawula isignali nokucubungula olususelwe ku-CPU ngalobu buchwepheshe lubizwa ngokuthi uhlelo lwe-ARM.Isistimu yokulawula ekhethekile ye-LED eyenziwe ngobuchwepheshe be-ARM ingakwazi ukubona isilawuli se-asynchronous.Izindlela zokuxhumana zingabandakanya inethiwekhi yontanga kuya kontanga, i-LAN, i-inthanethi, nokuxhumana kwe-serial.Iqukethe cishe zonke izixhumanisi ze-PC;
64: Iyini i-USB interface?
Isifinyezo sesiNgisi se-USB sithi I-Universal Serial Bus, ehumushela olimini lwesiShayina ngokuthi “Universal Serial Bus”, eyaziwa nangokuthi i-Universal Serial Interface.Ingakwazi ukusekela ukuxhuma okushisayo futhi ingaxhuma kumadivayisi angaphandle angama-127 PC;Kunamazinga amabili okusebenza: i-USB1.0 ne-USB2.0
Isikhathi sokuthumela: Feb-18-2023