1: LED yog dab tsi?
LED yog lub ntsiab lus ntawm lub teeb emitting diode.Lub "LED" hauv kev lag luam zaub yog hais txog LED uas tuaj yeem pom lub teeb pom kev
2: Pixel yog dab tsi?
Qhov tsawg kawg nkaus luminous pixel ntawm LED zaub muaj lub ntsiab lus zoo ib yam li "pixel" hauv cov khoom siv computer zoo tib yam;
3: Dab tsi yog pixel spacing (dot spacing)?
Qhov kev ncua deb ntawm qhov nruab nrab ntawm ib pixel mus rau qhov chaw ntawm lwm pixel;
4: Dab tsi yog LED zaub module?
Cov chav tsev me tshaj plaws uas muaj ntau cov duab pixels, uas yog kev ywj pheej ntawm cov qauv thiab tuaj yeem tsim ib qho screen LED.Hom yog "8 × 8", "5 × 7", "5 × 8", thiab lwm yam, tuaj yeem sib sau ua ke rau hauv cov khoom siv los ntawm cov khoom siv tshwj xeeb thiab cov qauv;
5: DIP yog dab tsi?
DIP yog cov ntawv luv ntawm Ob Chav In-line Pob, uas yog ib qho kev sib dhos dual hauv kab;
6: SMT yog dab tsi?SMD yog dab tsi?
SMT yog cov ntawv luv ntawm Surface Mounted Technology, uas yog cov tshuab nrov tshaj plaws thiab cov txheej txheem hauv kev lag luam hluav taws xob sib dhos tam sim no;SMD yog cov ntawv luv ntawm cov khoom siv saum npoo av
7: Dab tsi yog LED zaub module?
Daim ntawv teev npe yooj yim txiav txim siab los ntawm lub voj voog thiab cov qauv kev teeb tsa, nrog rau kev ua haujlwm, thiab muaj peev xwm paub txog kev ua haujlwm los ntawm kev sib dhos yooj yim
8: LED zaub yog dab tsi?
Zaub npo tsim los ntawm LED ntaus ntawv array los ntawm qee hom kev tswj hwm;
9: Lub plug-in module yog dab tsi?Qhov zoo thiab qhov tsis zoo yog dab tsi?
Nws hais txog tias DIP ntim lub teeb hla lub teeb tus pin los ntawm PCB pawg thawj coj saib thiab sau cov tin hauv lub teeb qhov los ntawm vuam.Lub module ua los ntawm cov txheej txheem no yog lub plug-in module;Qhov zoo yog qhov loj saib lub kaum ntse ntse, siab brightness thiab zoo tshav kub dissipation;Qhov tsis zoo yog tias qhov pixel ceev me me;
10: Dab tsi yog qhov chaw pasting module?Qhov zoo thiab qhov tsis zoo yog dab tsi?
SMT tseem hu ua SMT.Lub SMT-pob teeb yog welded rau saum npoo ntawm PCB los ntawm cov txheej txheem vuam.Lub teeb taw tsis tas yuav dhau los ntawm PCB.Lub module ua los ntawm cov txheej txheem no yog hu ua SMT module;Qhov zoo yog: lub kaum sab xis loj, cov duab muag muag, siab pixel ceev, haum rau sab hauv tsev;Qhov tsis zoo yog qhov ci ntsa iab tsis siab txaus thiab cov cua kub dissipation ntawm lub teeb raj nws tus kheej tsis zoo txaus;
11: Dab tsi yog qhov sub-deg sticker module?Qhov zoo thiab qhov tsis zoo yog dab tsi?
Lub sub-surface sticker yog ib yam khoom ntawm DIP thiab SMT.Lub ntim ntim ntawm nws lub teeb LED yog tib yam li ntawm SMT, tab sis nws cov pins zoo thiab tsis zoo yog tib yam li DIP.Nws tseem welded los ntawm PCB thaum lub sij hawm tsim khoom.Nws qhov zoo yog: lub teeb ci siab, cov txiaj ntsig zoo, thiab nws qhov tsis zoo yog: cov txheej txheem nyuaj, kev saib xyuas nyuaj;
12: 3 hauv 1 yog dab tsi?Dab tsi yog nws qhov zoo thiab qhov tsis zoo?
Nws yog hais txog ntim LED chips sib txawv xim R, G thiab B nyob rau hauv tib gel;Qhov zoo yog: kev tsim khoom yooj yim, cov txiaj ntsig zoo, thiab qhov tsis zoo yog: kev sib cais xim nyuaj thiab tus nqi siab;
13: 3 thiab 1 yog dab tsi?Dab tsi yog nws qhov zoo thiab qhov tsis zoo?
3 nyob rau hauv 1 yog thawj innovated thiab siv los ntawm peb lub tuam txhab nyob rau hauv tib lub lag luam.Nws hais txog kev sib txuas ntsug ntawm peb tus kheej ntim SMT teeb R, G thiab B raws li ib qho kev ncua deb, uas tsis tsuas yog muaj tag nrho cov txiaj ntsig ntawm 3 hauv 1, tab sis kuj daws txhua qhov tsis zoo ntawm 3 hauv 1;
14: Dab tsi yog dual thawj xim, pseudo-xim thiab cov xim puv npo?
LED nrog cov xim sib txawv tuaj yeem tsim cov ntxaij vab tshaus sib txawv.Cov xim thawj ob yog tsim los ntawm cov xim liab, ntsuab lossis daj-ntsuab, cov xim cuav yog tsim los ntawm cov xim liab, daj-ntsuab thiab xiav xim, thiab cov xim tag nrho yog tsim los ntawm cov xim liab, ntshiab ntsuab thiab xim xiav ntshiab;
15: Lub ntsiab lus ntawm luminous siv (luminosity) yog dab tsi?
Luminous siv (luminosity, I) txhais tau tias yog qhov siv luminous ntawm lub teeb qhov chaw nyob rau hauv ib qho kev taw qhia, uas yog, tus nqi ntawm lub teeb emitted los ntawm lub luminous lub cev nyob rau hauv ib chav tsev lub sij hawm, kuj hu ua luminosity.Chav tsev yog candela (cd, candela).Lub candela thoob ntiaj teb txhais tau tias yog lub luminosity emitted los ntawm kev hlawv ib tug tswm ciab ua los ntawm whale roj ntawm 120 grams tauj ib teev.Ib gram txias yog sib npaug rau 0.0648 grams
16: Dab tsi yog chav tsev ntawm luminous siv (luminosity)?
Chav tsev ntawm luminous siv yog candela (cd, candela).Cov txheej txheem thoob ntiaj teb candela (lcd) txhais tau tias yog lub luminosity ntawm 1/600000 nyob rau hauv cov kev taw qhia perpendicular mus rau lub blackbody (nws qhov chaw saum npoo yog 1m2) thaum lub zoo tagnrho blackbody nyob rau ntawm lub platinum freezing point kub (1769 ℃).Qhov zoo tshaj plaws blackbody txhais tau hais tias lub emissivity ntawm cov khoom yog sib npaug rau 1, thiab lub zog absorbed los ntawm cov khoom yuav raug radiated kiag li, yog li ntawd qhov kub thiab txias nyob twj ywm tsis tu ncua, thiab kev sib pauv kev sib raug zoo ntawm lub thoob ntiaj teb standard candela thiab cov laus. txheem candela yog 1 candela = 0.981 tswm ciab
17: Dab tsi yog luminous flux?Qhov unit ntawm luminous flux yog dab tsi?
Luminous flux ( φ ) Lub ntsiab lus txhais ntawm yog: lub zog tawm los ntawm qhov chaw teeb pom kev zoo lossis tsis yog lub teeb pom kev hauv ib lub sijhawm, uas tus neeg pom (cov hluav taws xob hluav taws xob uas tib neeg tuaj yeem hnov) hu ua luminous flux.Chav tsev ntawm luminous flux yog lumen (ua luv li lm), thiab 1 lumen (lumen los yog lm) yog txhais raws li lub luminous flux dhau los ntawm tus qauv thoob ntiaj teb tswm ciab teeb qhov chaw nyob rau hauv chav tsev khoom arc kaum.Txij li tag nrho cov cheeb tsam kheej kheej yog 4 π R2, lub luminous flux ntawm ib lumen yog sib npaug rau 1/4 π ntawm cov luminous flux tawm los ntawm ib tug tswm ciab, los yog lub spherical nto muaj 4 π, yog li raws li lub ntsiab lus ntawm lumen, ib tug taw tes Lub teeb ci ntawm cd yuav radiate 4 π lumens, uas yog φ (lumen) = 4 π I (teeb tswm ciab), piv txwv li △ Ω yog ib qho khoom me me arc kaum sab xis, lub teeb flux △ hauv △ Ω lub kaum ntse ntse φ, △ φ = △ΩI
18: Ib ko taw tswm ciab txhais li cas?
Ib ko taw taws tswm ciab hais txog lub teeb pom kev ntawm lub dav hlau uas yog ib ko taw deb ntawm lub teeb qhov chaw (qhov taw qhia lub teeb los yog qhov chaw tsis yog lub teeb) thiab orthogonal rau lub teeb, uas yog luv luv li 1 ftc (1 lm / ft2, lumens /ft2), uas yog, illuminance thaum lub luminous flux tau txais ib square feet yog 1 lumen, thiab 1 ftc = 10.76 lux
19: Lub ntsiab lus ntawm ib 'meter' tswm ciab yog dab tsi?
Ib lub 'meter' tswm ciab hais txog lub teeb pom kev ntawm lub dav hlau ib 'meter' deb ntawm lub teeb qhov chaw ntawm ib tug tswm ciab (taw tes lub teeb los yog tsis-point teeb qhov chaw) thiab orthogonal rau lub teeb, uas yog hu ua lux (tseem sau li lx), uas yog , qhov illuminance thaum lub luminous flux tau txais ib square meter yog 1 lumen (lumen / m2)
20: 1 Lux txhais li cas?
Illuminance thaum lub luminous flux tau txais ib square meter yog 1 lumen
21: Lub ntsiab lus ntawm illumination yog dab tsi?
Illuminance (E) txhais tau tias yog lub luminous flux txais los ntawm chav tsev illuminated cheeb tsam ntawm lub illuminated khoom, los yog lub luminosity txais los ntawm lub illuminated khoom nyob rau hauv ib chav tsev cheeb tsam nyob rau hauv chav tsev lub sij hawm, qhia nyob rau hauv meter tswm ciab los yog ko taw tswm ciab (ftc)
22: Dab tsi yog kev sib raug zoo ntawm illuminance, luminosity thiab nrug?
Kev sib raug zoo ntawm illuminance, luminosity thiab nrug yog: E (illuminance) = I (luminosity) / r2 (square of nrug)
23: Yam dab tsi cuam tshuam rau qhov pom kev ntawm qhov kev kawm?
Lub illuminance ntawm cov khoom muaj feem xyuam rau lub luminous siv ntawm lub teeb qhov chaw thiab qhov kev ncua deb ntawm cov khoom thiab lub teeb qhov chaw, tab sis tsis mus rau xim, nto khoom thiab nto ntawm cov khoom.
24: Lub ntsiab lus ntawm lub teeb pom kev zoo (lumen / watt, lm / w) yog dab tsi?
Qhov piv ntawm tag nrho cov luminous flux emitted los ntawm lub teeb qhov chaw mus rau lub zog hluav taws xob noj los ntawm lub teeb qhov chaw (W) yog hu ua lub luminous efficiency ntawm lub teeb qhov chaw.
25: Xim kub yog dab tsi?
Thaum cov xim emissions los ntawm lub teeb qhov chaw yog tib yam li cov xim radiated los ntawm lub blackbody ntawm ib tug tej yam kub thiab txias, qhov kub ntawm lub blackbody yog xim kub.
26: Dab tsi yog luminous brightness?
Lub teeb siv ib cheeb tsam ntawm LED zaub screen, nyob rau hauv cd / m2, tsuas yog lub teeb siv ib square meter ntawm zaub screen;
27: Dab tsi yog qhov ci ntsa iab?
Cov theem ntawm phau ntawv los yog tsis siv neeg hloov ntawm qhov qis tshaj plaws thiab siab tshaj plaws brightness ntawm tag nrho cov tshuaj ntsuam
28: Grey nplai yog dab tsi?
Nyob rau tib theem brightness, cov kev ua theem ntawm cov zaub screen los ntawm qhov tsaus ntuj mus rau lub brightest;
29: Qhov sib txawv yog dab tsi?
Nws yog qhov piv ntawm dub mus rau dawb, uas yog, gradation gradation ntawm dub mus dawb.Qhov loj dua qhov sib piv, qhov gradation ntau dua los ntawm dub mus rau dawb, thiab cov xim sawv cev ntau dua.Hauv kev lag luam projector, muaj ob txoj kev ntsuas qhov sib txawv.Ib qho yog qhov kev sim puv-qhib / puv-kaw sib piv, uas yog, ntsuas qhov ci piv ntawm lub vijtsam dawb rau tag nrho cov vijtsam dub tso tawm los ntawm lub projector.Lwm qhov yog ANSI qhov sib piv, uas siv ANSI tus qauv xeem txoj hauv kev los ntsuas qhov sib piv.ANSI sib piv txoj kev sim siv 16-point dub thiab dawb xim blocks.Qhov sib piv ntawm qhov nruab nrab qhov ci ntawm yim qhov chaw dawb thiab qhov nruab nrab ci ntawm yim qhov chaw dub yog qhov sib txawv ntawm ANSI.Qhov sib txawv qhov tseem ceeb tau los ntawm ob txoj kev ntsuas no sib txawv heev, uas kuj yog ib qho tseem ceeb rau qhov sib txawv loj hauv nominal sib piv ntawm cov khoom los ntawm cov tuam txhab sib txawv.Nyob rau hauv tej yam ambient illumination, thaum thawj xim ntawm LED zaub screen nyob rau hauv lub siab tshaj plaws brightness thiab siab tshaj plaws grey theem
30: PCB yog dab tsi?
PCB yog luam tawm Circuit Board;
31: BOM yog dab tsi?
BOM yog daim nqi ntawm cov ntaub ntawv (cov ntawv luv ntawm daim nqi ntawm cov khoom);
32: Qhov nyiaj dawb yog dab tsi?Kev cai dawb tshuav nyiaj li cas yog dab tsi?
Los ntawm kev tshuav dawb, peb txhais tau tias qhov sib npaug ntawm cov xim dawb, uas yog, qhov sib npaug ntawm qhov ci ntawm R, G thiab B hauv qhov piv ntawm 3: 6: 1;Kev hloov pauv ntawm qhov ci ci thiab cov xim dawb ntawm R, G thiab B xim yog hu ua kev hloov pauv dawb;
33: Qhov sib txawv yog dab tsi?
Qhov piv ntawm qhov siab tshaj plaws brightness ntawm LED zaub screen rau tom qab brightness nyob rau hauv ib tug tej yam ambient illuminance;
34: Tus ncej hloov zaus yog dab tsi?
Tus naj npawb ntawm lub sij hawm cov ntaub ntawv tshuaj ntsuam tau hloov kho ib lub sij hawm;
35: Dab tsi yog qhov refresh npaum li cas?
Tus naj npawb ntawm lub sij hawm cov zaub screen yog rov ua dua los ntawm lub vijtsam zaub;
36: Dab tsi yog wavelength?
Wavelength ( λ ): Qhov kev ncua deb ntawm cov ntsiab lus sib thooj lossis qhov kev ncua deb ntawm ob lub ncov uas nyob ib sab lossis kwj ha hauv ob lub sijhawm uas nyob ib sab thaum yoj tawm, feem ntau yog mm
37: Qhov kev daws teeb meem yog dab tsi
Lub tswv yim ntawm kev daws teeb meem tsuas yog hais txog cov naj npawb ntawm cov ntsiab lus pom kab rov tav thiab ntsug ntawm qhov screen
38: Txoj kev xav yog dab tsi?Qhov pom lub kaum sab xis yog dab tsi?Qhov kev pom zoo tshaj plaws yog dab tsi?
Lub kaum sab xis ntawm kev pom yog lub kaum sab xis ntawm ob txoj kev saib ntawm tib lub dav hlau thiab cov kev taw qhia ib txwm muaj thaum lub ci ntsa iab ntawm qhov pom kev poob mus rau 1/2 ntawm cov kev taw qhia ib txwm ntawm LED zaub.Nws muab faib ua kab rov tav thiab ntsug kev pom;Lub kaum sab xis pom yog lub kaum sab xis ntawm qhov kev taw qhia ntawm cov duab cov ntsiab lus ntawm lub vijtsam zaub thiab qhov qub ntawm lub vijtsam zaub;Lub kaum sab xis zoo tshaj plaws ntawm kev pom yog lub kaum sab xis ntawm qhov pom tseeb tshaj plaws ntawm cov duab cov ntsiab lus thiab cov kab ib txwm;
39: Qhov kev pom zoo tshaj plaws yog dab tsi?
Nws hais txog qhov kev ncua deb ntawm txoj hauj lwm clearest ntawm cov duab cov ntsiab lus thiab lub cev ntawm lub vijtsam, uas tuaj yeem pom cov ntsiab lus ntawm qhov screen nkaus xwb yam tsis muaj xim sib txawv;
40: Lub ntsiab lus ntawm kev poob tswj yog dab tsi?Muaj pes tsawg?
Pixels uas nws lub luminous lub xeev tsis ua raws li cov cai tswj;Tawm ntawm cov ntsiab lus tswj tau muab faib ua: qhov muag tsis pom (tseem hu ua qhov chaw tuag), qhov chaw ci tsis tu ncua (lossis qhov chaw tsaus), thiab flash point;
41: Dab tsi yog static drive?Scan drive yog dab tsi?Qhov txawv ntawm ob yog dab tsi?
Lub "taw tes rau taw tes" tswj los ntawm cov zis tus pin ntawm tsav IC mus rau pixel yog hu ua kev tsav tsheb zoo li qub;Lub "taw tes rau kem" tswj los ntawm cov zis tus pin ntawm tus tsav IC mus rau lub pixel point yog hu ua scanning tsav, uas yuav tsum muaj kab tswj Circuit Court;Nws tuaj yeem pom tseeb los ntawm lub rooj tsav xwm tsav tsheb uas tus tsav zoo li qub tsis xav tau kab tswj kev sib txuas, thiab tus nqi siab, tab sis cov nyhuv ntawm cov zaub yog qhov zoo, qhov ruaj khov yog qhov zoo, thiab qhov ci ntsa iab yog me me;Scan tsav yuav tsum muaj kab tswj Circuit Court, tab sis nws cov nqi qis, cov nyhuv tsis zoo, kev ruaj ntseg tsis zoo, qhov ci ntsa iab loj, thiab lwm yam;
42: Dab tsi yog qhov tsav tam sim no?Dab tsi yog qhov kev tsav siab tsis tu ncua?
Tsis tu ncua tam sim no hais txog tus nqi tam sim no tau teev tseg hauv kev tsim cov khoom tso tawm tas li nyob rau hauv qhov chaw ua haujlwm pub dawb ntawm IC tsav;Qhov voltage tsis tu ncua yog hais txog tus nqi hluav taws xob uas tau teev tseg hauv kev tsim cov khoom tso tawm tas li nyob rau hauv qhov chaw ua haujlwm tso cai ntawm tus tsav IC;
43: Dab tsi yog qhov kev kho tsis raug?
Yog tias cov teeb liab digital tso tawm los ntawm lub khoos phis tawj raug tso tawm ntawm LED zaub screen yam tsis muaj kev kho, xim distortion yuav tshwm sim.Yog li ntawd, nyob rau hauv lub system tswj Circuit Court, lub teeb liab yuav tsum tau rau cov zaub screen xam los ntawm lub qub computer tso zis teeb liab los ntawm ib tug nonlinear muaj nuj nqi yog feem ntau hu ua nonlinear kho vim hais tias ntawm lub nonlinear kev sib raug zoo ntawm lub hauv ntej thiab nram qab lub teeb liab;
44: Dab tsi yog qhov ntsuas ua haujlwm voltage?Qhov ua haujlwm voltage yog dab tsi?Qhov khoom siv hluav taws xob yog dab tsi?
Qhov ntsuas hluav taws xob ua haujlwm yog hais txog qhov hluav taws xob thaum lub tshuab hluav taws xob ua haujlwm ib txwm muaj;Ua hauj lwm voltage hais txog tus nqi voltage ntawm cov khoom siv hluav taws xob nyob rau hauv ib txwm ua haujlwm nyob rau hauv qhov ntsuas voltage ntau;Lub zog hluav taws xob hluav taws xob tau muab faib ua AC thiab DC fais fab mov voltage.AC fais fab mov voltage ntawm peb cov zaub screen yog AC220V ~ 240V, thiab DC fais fab mov voltage yog 5V;
45: Xim distortion yog dab tsi?
Nws hais txog qhov sib txawv ntawm tib neeg lub qhov muag qhov kev xav thiab qhov muag pom thaum tib yam khoom tau tshwm sim hauv qhov xwm txheej thiab ntawm lub vijtsam zaub;
46: Dab tsi yog synchronous systems thiab asynchronous systems?
Synchronization thiab asynchrony yog txheeb ze rau cov computers hais.Lub npe hu ua synchronization system yog hais txog LED zaub tswj qhov system uas cov ntsiab lus tso tawm ntawm lub vijtsam zaub thiab lub khoos phis tawj tso saib yog synchronized;Asynchronous system txhais tau hais tias cov duab cov ntaub ntawv kho los ntawm lub khoos phis tawj yog khaws cia rau hauv cov zaub screen tswj ua ntej, thiab cov zaub ib txwm ntawm LED zaub screen yuav tsis cuam tshuam tom qab lub computer raug kaw.Xws li kev tswj hwm yog asynchronous system;
47: Dab tsi yog qhov muag tsis pom kev siv tshuab?
Lub qhov muag tsis pom kev (LED qhib Circuit Court thiab luv luv Circuit Court) ntawm lub vijtsam zaub tuaj yeem kuaj pom los ntawm lub khoos phis tawj sab saud thiab cov khoom siv hauv qab, thiab daim ntawv tshaj tawm tuaj yeem tsim los qhia rau tus thawj coj saib LED.Xws li tshuab yog hu ua qhov muag tsis pom kev siv tshuab;
48: Kev kuaj xyuas lub zog yog dab tsi?
Los ntawm cov khoos phis tawj sab saud thiab cov khoom siv hauv qab, nws tuaj yeem kuaj xyuas cov haujlwm ua haujlwm ntawm txhua lub zog ntawm lub vijtsam zaub thiab tsim ib daim ntawv qhia los qhia rau tus thawj coj saib LED.Xws li cov cuab yeej hu ua lub zog tshawb nrhiav tshuab
49: Dab tsi yog qhov teeb pom kev zoo?Kev kho qhov ci ci yog dab tsi?
Brightness nyob rau hauv brightness nrhiav pom yog hais txog lub ambient brightness ntawm lub LED zaub screen.Lub ambient brightness ntawm lub vijtsam zaub yog kuaj pom los ntawm lub teeb sensor.Txoj kev tshawb nrhiav no hu ua brightness detection;Brightness nyob rau hauv brightness hloov yog hais txog qhov ci ntawm lub teeb tawm los ntawm LED zaub.Cov ntaub ntawv kuaj pom tau rov qab mus rau LED zaub tswj qhov system lossis tswj lub khoos phis tawj, thiab tom qab ntawd qhov ci ntsa iab ntawm cov zaub tau hloov kho raws li cov ntaub ntawv no, uas yog hu ua kev hloov kho qhov ci.
50: Dab tsi yog pixel tiag?Dab tsi yog virtual pixel?Muaj pes tsawg pixels virtual muaj?Dab tsi yog pixel sib koom?
Tiag pixels hais txog 1: 1 kev sib raug zoo ntawm tus naj npawb ntawm lub cev pixels ntawm lub vijtsam zaub thiab cov pixels tiag tiag.Tus naj npawb ntawm cov ntsiab lus ntawm qhov screen tsuas tuaj yeem tso saib cov duab cov ntaub ntawv ntawm pes tsawg lub ntsiab lus;Virtual pixel hais txog kev sib raug zoo ntawm tus naj npawb ntawm lub cev pixels ntawm lub vijtsam zaub thiab tus lej ntawm cov pixels tiag tiag yog 1: N (N = 2, 4).Nws tuaj yeem tso saib ob lossis plaub zaug ntau cov duab pixels dua li qhov tseeb pixels ntawm lub vijtsam zaub;Virtual pixels tuaj yeem muab faib ua software virtual thiab hardware virtual raws li kev tswj hwm virtual;Nws tuaj yeem muab faib ua 2 zaug virtual thiab 4 zaug virtual raws li ntau yam kev sib raug zoo, thiab nws tuaj yeem muab faib ua 1R1G1B virtual thiab 2R1G1GB virtual raws li txoj kev teeb tsa ntawm lub module;
51: Kev tswj chaw taws teeb yog dab tsi?Hauv qhov xwm txheej twg?
Qhov kev ncua deb tsis tas yuav ncua deb.Cov chaw taws teeb tswj suav nrog qhov kawg tswj qhov kawg thiab qhov kawg tswj hauv LAN, thiab qhov chaw nyob deb tsis deb;Thiab lub ntsiab tswj qhov kawg thiab qhov kawg tswj nyob rau hauv ib tug kuj ntev qhov chaw deb;Yog tias tus neeg siv khoom thov lossis tus neeg siv khoom txoj haujlwm tswj tau tshaj qhov kev ncua deb ncaj qha los ntawm cov khoom siv kho qhov muag, yuav tsum siv cov chaw taws teeb tswj;
52: Dab tsi yog optical fiber kis tau tus mob?Dab tsi yog network cable kis tau tus mob?
Optical fiber kis tau tus mob yog hloov hluav taws xob teeb liab mus rau hauv optical signals thiab siv pob tshab iav fiber rau kis tau tus mob;Network cable kis tau tus mob yog qhov ncaj qha kis tau tus mob ntawm hluav taws xob teeb liab siv hlau nyob ntawm tej;
53: Thaum twg kuv yuav siv lub network cable?Thaum twg optical fiber siv?
Thaum qhov kev ncua deb ntawm lub vijtsam zaub thiab lub computer tswj
54: LAN tswj yog dab tsi?Internet tswj yog dab tsi?
Hauv LAN, ib lub khoos phis tawj tswj hwm lwm lub khoos phis tawj lossis cov khoom siv sab nraud txuas nrog nws.Txoj kev tswj no yog hu ua LAN tswj;Tus tswv tswj tau ua tiav lub hom phiaj ntawm kev tswj hwm los ntawm kev nkag mus rau IP chaw nyob ntawm tus maub los hauv Is Taws Nem, uas yog hu ua Internet tswj.
55: DVI yog dab tsi?VGA yog dab tsi?
DVI yog cov ntawv luv ntawm Digital Video Interface, uas yog, digital video interface.Nws yog lub teeb liab video digital interface tam sim no siv thoob ntiaj teb;Lub npe lus Askiv tag nrho ntawm VGA yog Video Graphic Array, uas yog, tso saib cov duab kos duab.Nws yog R, G thiab B analog tso zis video teeb liab interface;
56: Cov teeb liab digital yog dab tsi?Dab tsi yog digital circuit?
Digital teeb liab txhais tau hais tias tus nqi ntawm cov teeb liab amplitude yog discrete, thiab amplitude sawv cev yog txwv rau 0 thiab 1;Lub Circuit Court rau kev ua thiab tswj cov teeb liab no yog hu ua digital circuit;
57: Lub teeb liab analog yog dab tsi?Analog Circuit Court yog dab tsi?
Analog teeb liab txhais tau hais tias tus nqi ntawm lub teeb liab amplitude yog tas li nyob rau hauv lub sij hawm;Lub Circuit Court uas ua thiab tswj cov teeb liab zoo li no yog hu ua analog circuit;
58: Qhov PCI yog dab tsi?
PCI slot yog qhov nthuav dav raws li PCI lub tsheb npav hauv zos (peripheral tivthaiv expansion interface).PCI slot yog lub ntsiab expansion qhov ntawm lub motherboard.Los ntawm ntsaws cov ntawv nthuav dav sib txawv, yuav luag tag nrho cov haujlwm sab nraud uas tuaj yeem pom tau los ntawm lub khoos phis tawj tam sim no tuaj yeem tau txais;
59: Dab tsi yog AGP qhov?
Accelerated graphics interface.AGP yog ib qho kev qhia tshwj xeeb uas tso cai rau 3D duab tso tawm kom pom ntawm qhov nrawm nrawm ntawm cov khoos phis tawj tus kheej.AGP yog ib qho interface tsim los xa 3D duab sai dua thiab du.Nws siv lub cim xeeb tseem ceeb ntawm lub khoos phis tawj tus kheej zoo tib yam los kho cov duab tso tawm ntawm cov zaub, thiab txhawb nqa 3D duab thev naus laus zis xws li kev kos duab kev ntxhib los mos, xoom buffering thiab alpha blending.
60: GPRS yog dab tsi?GSM yog dab tsi?CDMA yog dab tsi?
GPRS yog General Packet Radio Service, ib qho kev pabcuam tshiab uas tsim los ntawm GSM system uas twb muaj lawm, feem ntau yog siv rau kev sib txuas lus hauv xov tooj cua;GSM yog cov ntawv luv ntawm "GlobalSystemForMobileCommunication" tus qauv (Kev Sib Txuas Lus Thoob Ntiaj Teb Sib Tham) sib koom ua ke los ntawm European Commission rau Standardization hauv 1992. Nws siv cov thev naus laus zis kev sib txuas lus thiab cov qauv sib koom ua ke los xyuas kom muaj kev sib txuas lus zoo thiab tuaj yeem tsim cov kev pabcuam tshiab rau cov neeg siv. .Code Division Multiple Access yog qhov tshiab thiab paub tab wireless kev sib txuas lus thev naus laus zis raws li kev sib kis spectrum technology;
61: Dab tsi yog kev siv GPRS tshuab rau cov ntxaij vab tshaus?
Ntawm GPRS cov ntaub ntawv network raws li kev sib txuas lus ntawm lub xov tooj, cov ntaub ntawv ntawm peb cov LED zaub yog sib txuas lus los ntawm GPRS transceiver module, uas tuaj yeem paub txog tej thaj chaw deb point-to-point me me ntawm cov ntaub ntawv xa mus!Ua tiav lub hom phiaj ntawm kev tswj chaw taws teeb;
62: Kev sib txuas lus RS-232, RS-485 kev sib txuas lus, thiab kev sib txuas lus RS-422 yog dab tsi?Cov txiaj ntsig ntawm txhua qhov yog dab tsi?
RS-232;RS-485;RS422 yog tus qauv sib txuas lus sib txuas lus rau cov khoos phis tawj
Lub npe tag nrho ntawm RS-232 tus qauv (tus qauv) yog EIA-RS-232C tus qauv, uas EIA (Electronic Industry Association) sawv cev rau American Electronic Industry Association, RS (tus qauv pom zoo) sawv cev rau tus qauv pom zoo, 232 yog tus lej cim, thiab C sawv cev rau qhov kev hloov kho tshiab kawg ntawm RS232
Lub teeb liab theem tus nqi ntawm RS-232 interface yog siab, uas yog ib qho yooj yim rau kev puas tsuaj rau nti ntawm interface Circuit Court.Tus nqi kis tau tus mob tsawg, thiab qhov kis tau tus mob yog txwv, feem ntau tsis pub dhau 20M.
RS-485 muaj kev sib txuas lus deb ntawm kaum ntawm meters mus rau ntau txhiab meters.Nws siv qhov sib npaug sib kis thiab txais qhov sib txawv.RS-485 yog qhov yooj yim heev rau kev sib txuas ntawm ntau qhov chaw.
RS422 lub tsheb npav, RS485 thiab RS422 circuits yog qhov tseem ceeb ntawm txoj cai.Lawv raug xa thiab tau txais hauv hom sib txawv, thiab tsis xav tau cov xaim hauv av digital.Kev ua haujlwm sib txawv yog qhov laj thawj tseem ceeb rau qhov kev sib kis ntev ntawm tib tus nqi, uas yog qhov sib txawv ntawm RS232 thiab RS232, vim RS232 yog ib qho kev tawm tswv yim thiab tawm, thiab tsawg kawg hauv av xaim yog xav tau rau kev ua haujlwm duplex.Cov kab xa thiab txais kab yog peb kab (asynchronous kis tau tus mob), thiab lwm yam kev tswj kab tuaj yeem muab ntxiv kom tiav synchronization thiab lwm yam haujlwm.
RS422 tuaj yeem ua haujlwm nyob rau hauv tag nrho duplex yam tsis muaj kev cuam tshuam ib leeg los ntawm ob khub ntawm twisted khub, thaum RS485 tsuas tuaj yeem ua haujlwm hauv ib nrab duplex.Kev xa thiab txais tsis tuaj yeem ua tiav tib lub sijhawm, tab sis nws tsuas yog xav tau ib khub ntawm twisted khub.
RS422 thiab RS485 tuaj yeem xa 1200 meters ntawm 19 kpbs.Cov khoom siv tuaj yeem txuas rau ntawm kab tshiab transceiver.
63: ARM system yog dab tsi?Rau kev lag luam LED, nws siv li cas?
ARM (Advanced RISC Machines) yog ib lub tuam txhab tshwj xeeb hauv kev tsim thiab tsim cov chips raws li RISC (Raws li Kev Qhia Teeb Meem Computer) thev naus laus zis.Nws tuaj yeem suav tau tias yog lub npe ntawm lub tuam txhab, lub npe dav dav ntawm chav kawm ntawm microprocessors, thiab lub npe ntawm lub tshuab.Lub teeb liab tswj thiab kev ua haujlwm raws li CPU nrog cov thev naus laus zis no hu ua ARM system.LED tshwj xeeb tswj qhov system ua los ntawm ARM thev naus laus zis tuaj yeem paub txog kev tswj hwm asynchronous.Cov hom kev sib txuas lus tuaj yeem suav nrog cov phooj ywg-rau-peer network, LAN, Internet, thiab kev sib txuas lus sib txuas.Nws muaj yuav luag tag nrho cov PC interfaces;
64: Dab tsi yog USB interface?
Cov lus Askiv luv luv ntawm USB yog Universal Serial Bus, uas txhais ua Suav li "Universal Serial Bus", tseem hu ua Universal Serial Interface.Nws tuaj yeem txhawb nqa kub ntsaws thiab tuaj yeem txuas mus txog 127 PC cov khoom siv sab nraud;Muaj ob tus qauv kev sib txuas: USB1.0 thiab USB2.0
Post lub sij hawm: Feb-18-2023