Ikhonkco le-daisy lubumbeko lombane apho izixhobo ezininzi zixhunyiwe ngendlela yomgca, enye emva kwenye. Ibizwa ngokuba yityathanga ledaisy kuba ifana netyathanga lentyatyambo ebizwa ngokuba yidaisy.
Ikhonkco le-daisy lingasetyenziselwa iinjongo ezininzi, ezifana nokudibanisa izithethi ezininzi kwi-amplifier enye, ukudibanisa izibane ezininzi kwi-outlet yamandla enye, okanye ukudibanisa izixhobo ezininzi kwi-port ye-USB enye.
I-Daisy Chaining: I-Primer
Yintoni i-Daisy Chaining?
I-Daisy chaining yinkqubo yocingo apho izixhobo ezininzi zixhunyiwe ngokulandelelana okanye kwindandatho, efana ne-garland yeentyatyambo ze-daisy. Amatyathanga eDaisy angasetyenziselwa amandla, imiqondiso ye-analog, idatha yedijithali, okanye indibaniselwano yazo zontathu.
Iindidi zeDaisy Chains
- Amatyathanga e-Daisy angasetyenziselwa ukudibanisa izixhobo ezinkulu, ezifana noluhlu lweentambo zamandla, ukwenza umgca omnye omde.
- Amatyathanga eDaisy anokusetyenziswa ukudibanisa izixhobo ngaphakathi kwesixhobo, njenge-USB, iFireWire, iThunderbolt, kunye neentambo ze-Ethernet.
- Amatyathanga eDaisy angasetyenziselwa ukudibanisa imiqondiso ye-analog, njengebhasi yombane.
- Imixokelelwane yeDaisy ingasetyenziselwa ukudibanisa imiqondiso yedijithali, njengeSerial Peripheral Interface Bus (SPI) IC.
- Amatyathanga eDaisy angasetyenziselwa ukudibanisa izixhobo ze-MIDI.
- Amatyathanga eDaisy angasetyenziselwa ukudibanisa iisekethe ezidibeneyo ze-JTAG.
- Amatyathanga eDaisy angasetyenziselwa ukudibanisa izixhobo ze-Thunderbolt, ezifana ne-RAID arrays kunye neemonitha zekhompyutha.
- Imixokelelwane yeDaisy ingasetyenziselwa ukudibanisa izixhobo zeHexbus, ezifana ne-TI-99/4A, CC-40, kunye ne-TI-74.
Iinzuzo zeDaisy Chaining
I-Daisy chaining inokuba yindlela entle yokudibanisa izixhobo ezininzi ngomzamo omncinci. Kwakhona kuyindlela engabizi kakhulu yokudibanisa izixhobo, njengoko ifuna iintambo ezimbalwa kunye nezihlanganisi kunezinye izikimu zocingo. Ukongezelela, i-daisy chaining inokunceda ukunciphisa i-clutter, njengoko isusa imfuno yeentambo ezininzi kunye nezixhumi. Ekugqibeleni, i-daisy chaining inokunceda ukunciphisa ilahleko yesignali, njengoko umqondiso uhlaziywa ngokutsha kwisixhobo ngasinye kwikhonkco.
Ukuhanjiswa koMqondiso: Isikhokelo esiKhawulezayo
Iimpawu zeAnalog
Xa kuziwa kwiimpawu ze-analog, ukudibanisa ngokuqhelekileyo ibhasi yombane elula. Kwaye ukuba ujongana nothotho lwezixhobo ezininzi, kuya kufuneka usebenzise isiphinda-phinda esinye okanye ngaphezulu okanye iamplifiers ukuchasana nokuthomalalisa.
Iimpawu zeDijithali
Iimpawu zedijithali phakathi kwezixhobo zinokuhamba ngebhasi yombane. Kule meko, uya kufuna isimisi sebhasi kwisixhobo sokugqibela kwitsheyini. Ngokungafaniyo nemiqondiso ye-analog, imiqondiso yedijithali inokuvuselelwa ngombane (kodwa ingalungiswa) nangasiphi na isixhobo esisetsheyini.
Iingcebiso zoThutho loMqondiso
Nazi iingcebiso ezimbalwa ekufuneka uzigcine engqondweni xa usebenza nokuhanjiswa komqondiso:
- Sebenzisa iziphindaphindi okanye iiamplifiers ukuchasana nokuthomalalisa kwiimpawu ze-analog.
- Sebenzisa isimisi sebhasi kwisixhobo sokugqibela kwitsheyini kwiisignali zedijithali.
- Imiqondiso yedijithali inokuvuselelwa ngombane (kodwa ingalungiswa) nangasiphi na isixhobo esisetsheyini.
- Ungalibali ukujonga iPassthrough ngolwazi oluthe kratya.
Daisy Chaining Hardware kunye Software
isibulali
I-hardware ye-Daisy chaining yindlela efanelekileyo yokudibanisa amacandelo amaninzi kwi-computing system. Ibandakanya ukudibanisa icandelo ngalinye kwelinye icandelo elifanayo, kunokuba ngokuthe ngqo kwi-computing system. Icandelo lokugqibela kwikhonkco lilo lodwa elidibanisa ngokuthe ngqo kwi-computing system. Nantsi eminye imizekelo yehardware enokukhonkxwa ngetyathanga ledaisy:
- Izibuko ze-UART
- SCSI
- Izixhobo ze-MIDI
- SPI IC iimveliso
- Iisekethe ezidibeneyo ze-JTAG
- Umbhobho wendudumo (ujongano)
- Hexbus
software
Daisy chaining iiseshoni computing yenye indlela enkulu ukudibanisa amacandelo amaninzi. Ibandakanya ukudibanisa iiseshini ezininzi kunye, ukuvumela abasebenzisi ukuba bafikelele kwiinkqubo ezininzi ngexesha elinye. Oku kuluncedo ngokukodwa kwimisebenzi efuna ukufikelela kwiinkqubo ezininzi.
I-Daisy-Chained vs. I-Pigtailed Parallel-Wired Receptacles
Yintoni umahluko?
Xa kuziwa kwiingcingo zombane, kukho iindlela ezimbini eziphambili: i-daisy-chaining kunye ne-parallel wiring. Makhe sijonge umahluko phakathi kwezi zimbini:
- I-Daisy-chaining (okanye i-wiring "in-series") ithetha ukudibanisa zonke izixhobo "ekupheleni ukuya ekupheleni" kunye nokusebenzisa izibini zeetheminali kwisitya ngasinye ukuthwala umsinga ukusuka kwesinye isixhobo ukuya kwesinye. Ukuba naluphi na uxhulumaniso okanye isixhobo kuluhlu luphazamisekile, izixhobo ezisezantsi ukusuka kuloo ndawo ziya kuphelelwa ngamandla.
- Iingcingo ezinxuseneyo zithetha ukudibanisa izixhobo ezisecaleni kweendlela ezininzi, ukuze ukuba naziphi na izixhobo zokwamkela zisilele, ezinye izinto zokwamkela kwisekethe zihlala zingachaphazeleki. Kwisekethe ehambelanayo, ukuhamba kwangoku kwahlulahlula, ngoko ke inxalenye yayo kuphela ihamba ngesixhobo ngasinye.
Iingcaciso ezisesikweni
- Kwisekethe yochungechunge, umsinga otyhutyha icandelo ngalinye uyafana, kwaye i-voltage kwisekethe sisixa sombane ngamnye wehla kwicandelo ngalinye.
- Kwisekethe ehambelanayo, i-voltage kuwo wonke amacandelo iyafana, kwaye i-totali yangoku iyisixa semisinga ehamba ngecandelo ngalinye.
Kutheni kubalulekile nje?
Iindlela ezimbini ze-wiring azifani nje kuphela kwisiphumo sokuphuka okanye ukungaphumeleli kwekhonkco kwi-receptacle yomntu, kodwa nakwiipropati zabo zombane. Ukwazi ukuba yeyiphi indlela onokuthi uyisebenzise kunokuqinisekisa ukuba inkqubo yakho yombane ikhuselekile kwaye isebenza kakuhle.
Izixhobo zeDaisy-Chaining: Isikhokelo esiKhawulezayo
Yintoni i-Daisy-Chaining?
I-Daisy-chaining yindlela yocingo apho izixhobo zombane zifakwe kwi-series, okanye enye emva kwenye. Le yindlela eqhelekileyo yocingo esetyenziswa kumakhaya amadala kwaye isasetyenziswa nanamhlanje.
Isebenza njani iDaisy-Chaining?
I-Daisy-chaining isebenza ngokudibanisa iingcingo ezimhlophe (ezingathathi hlangothi) kunye nezimnyama (ezishushu) zesekethe kwi-receptacle yesilivere kunye ne-brass terminals, ngokulandelelanayo. Intambo emhlophe izisa ucingo olungathathi hlangothi lwesekethe kwibhokisi yombane kwaye idibanisa kwi-receptacle. Ucingo lwesibini olumhlophe ludibanisa ukungathathi hlangothi kwesekethe ukuya phambili kwisixhobo esilandelayo esisezantsi. Iingcingo ezimnyama zidityaniswe nobhedu okanye iitheminali ezinombala wegolide okanye izikrufu, okanye kwiitheminali ezibhalwe "Mnyama" okanye "Hot". Enye yezi ngcingo zimnyama izisa ucingo olushushu okanye “oluphilayo” kwibhokisi yombane kwaye luqhagamshelwe kwenye yeetheminali “ezishushu” okanye “ezimnyama” zesixhobo. Ucingo lwesibini olumnyama luqhagamshela kwitheminali yesibini “eshushu” okanye “emnyama” kwaye ithwala ucingo olushushu okanye oluphilayo lwesekethi ukuya kwisixhobo esilandelayo okanye isixhobo esisezantsi.
Ziziphi iiNzuzo zeDaisy-Chaining?
I-Daisy-chaining yindlela efanelekileyo yokugcina ixesha kunye nemali xa ufaka iintambo zombane. Ifuna iziqhagamshelo kunye neengcingo ezimbalwa kunendlela yocingo “enxuseneyo”, kwaye yeyona ndlela ixhaphakileyo yocingo olufumaneka ezindlwini.
Ziziphi iingxaki zeDaisy-Chaining?
I-drawback ephambili ye-daisy-chaining kukuba ukuba i-receptacle enye iyasilela okanye ilahlekelwe enye yoqhagamshelo, zonke izixhobo ezisezantsi ziya kuphulukana namandla. Ukongezelela, i-back-wiring kufuneka igwenywe njengoko ingathembekanga kwaye ingakhuselekanga.
IiNgcingo zoMbane zoMbane ngokuFanayo
Yintoni iParallel Wiring?
I-parallel wiring yindlela yokudibanisa izixhobo zombane kwisekethe enye, ukwenzela ukuba ukuba i-receptacle enye ihluleka okanye ilahlekelwa amandla, yonke isiphaluka ihlala "iphila". Oku kwenziwa ngokusebenzisa i-twist-on connectors kunye neengcingo ze-pigtail ukudibanisa i-receptacle yokungathathi hlangothi kunye neetheminali ezishushu kwiintambo zesekethe ezishushu kunye nezingathathi hlangothi.
UQhagamshelwano lweeNcingo kwiiNdawo zokuLawulwa kwiParallel
Ukufakela iingcingo kwizixhobo ezihambelanayo, uya kufuna:
- Iingcingo ezintathu kwisiqhagamshelanisi ngasinye esijijekileyo:
– Intambo emnyama okanye “eshushu” esuka kwisekethe engena kwibhokisi yombane
– Intambo emnyama okanye “eshushu” eshiya ibhokisi yombane
-Ucingo olufutshane olumnyama "olushushu" (i-"pigtail") oludibanisa kwi-twist-on connector ukuya kwi-terminal "eshushu" okanye "emnyama"
– Intambo emhlophe okanye “engathathi hlangothi” esuka kwisekethe engena kwibhokisi yombane
– Intambo emhlophe okanye “ephakathi” eshiya ibhokisi yombane
-Intambo emfutshane emhlophe okanye "engathathi hlangothi" ("i-pigtail") edibanisa i-twist-on connector ukuya kwi-terminal engathathi hlangothi ye-receptacle.
- Iingcingo ezine zobhedu ezingenanto zokumisa:
– Yiya ngaphakathi
– Ground out
– Umhlaba ukuya kwisitya
- Ground kwibhokisi yombane yentsimbi (ukuba ibhokisi yentsimbi kuneplastiki).
Ukutshintsha i-Daisy-Chained Receptacles
Ukuba utshintshela isitya esinamatyathanga e-daisy kunye nesitsha esinentambo ngokunxuseneyo, uya kufuna ezi mathiriyeli zingasentla. Le ndlela idinga ibhokisi elikhulu lombane, njengoko liza kuqulatha uxhulumaniso oluninzi, iziqhagamshelo, kwaye ngoko ke kufuneka igumbi elingaphezulu.
Yintoni ubungakanani beBhokisi yoMbane endiyidingayo xa kusenziwa iHagu?
Jonga ubungakanani beBhokisi yoMbane
Xa uguqula ukusuka kwisixhobo esinentambo zombane ukuya kwisekethe yombane enxuseneyo kumtya wezixhobo, kufuneka uqinisekise ukuba ubungakanani bebhokisi yombane buzii-intshi ze-cubic ezaneleyo zokuqulatha iingcingo ezongezelelweyo kunye nezihlanganisi. Nantsi into ekufuneka uyazi:
- Uzakufuna iingcingo ezi-3 ezingathathi hlangothi, ezi-3 zeengcingo ezishushu, kunye neengcingo ezisezantsi ezi-4. Zonke iingcingo zomhlaba zibalwa ngokulingana ne-1 yabaqhubi abakhulu abakhoyo kwibhokisi.
- Izihlanganisi ezijijekileyo kunye nesitya sombane azibalwa xa kubalwa ubungakanani bebhokisi obufunekayo.
- Ukucinga ukuba isiphaluka yisekethe ye-15A usebenzisa i- #14 ucingo, i-NEC yase-US idinga i-intshi ezi-2 cubic ngomqhubi ngamnye. Oko kuthetha ukuba ibhokisi kufuneka (2cu.in. x 7 conductor) 14 cubic intshi okanye ngaphezulu.
- Jonga i-NEC kunye ne-ELECTRICAL JUNCTION BOX IINTLOBO zobungakanani bebhokisi obufanelekileyo bocingo lwakho.
Imigaqo yoKhuseleko kunye neeKhowudi zeDaisy Chaining
Imithetho ye-OSHA
- Umgangatho we-OSHA 29 CFR 1910.303(b)(2) uthi izixhobo ezidweliswe okanye ezinelebhile kufuneka zifakwe kwaye zisetyenziswe ngokwemiyalelo ebandakanyiweyo kuluhlu okanye kwiilebhile.
- UMlawuli we-OSHA, uRichard Fairfax, uthe abavelisi kunye neelabhoratri zovavanyo ezivunyiweyo kuzwelonke bamisela ukusetyenziswa okufanelekileyo kwemigca yamandla, kwaye ii-RPT ezidweliswe nge-UL kufuneka ziqhagamshelwe ngokuthe ngqo kwisixhobo sesekethe esifakwe ngokusisigxina kwaye hayi uthotho-uqhagamshelwe kwezinye ii-RPT okanye ziqhagamshelwe. kwiintambo zokwandisa.
Imigaqo yeNFPA
- NgokoMgangatho we-1 we-NFPA, iimpompo zamandla ezifuduswayo mazibe zohlobo olucandekileyo okanye olusekelwe phantsi nokhuseleko oludlulayo kwaye kufuneka zidweliswe.
- Kufuneka ziqhagamshelwe ngokuthe ngqo kwisitya esifakwe ngokusisigxina kwaye iintambo zazo mazinganwebeki kwiindonga, kwiisilingi, okanye kwimigangatho, phantsi kweengcango okanye phantsi kophahla, okanye zibe phantsi komonakalo wokusingqongileyo okanye ngokwasemzimbeni.
Imigaqo ye-UL
- I-UL 1363 1.7 ichaza ukuba i-RPTs edibeneyo ayijoliswanga ukuba idibaniswe nenye i-RPT edibeneyo.
- I-UL White Book (i-2015-2016) ichaza ukuba iimpompo zamandla ezifudukayo zijoliswe ukuba zidibaniswe ngokuthe ngqo kwi-ofisi yesebe efakwe ngokusisigxina ye-receptacle kunye ne-series-connected (i-daisy chain chain) kwezinye iimpompo zamandla ezinokususwa okanye kwiintambo zokwandisa.
nezinye izinto
- I-Ofisi yokuThobela evela kuRhulumente wase-United States ikhuphe uxwebhu oluthi "Iinyaniso ezikhawulezayo" ezinesihloko esithi I-Power Strips kunye neDangerous Daisy Chains. Ichaza ukuba uninzi lwemicu yamandla okanye izikhuseli zotyando zivunyiwe ukunika amandla ubuninzi bezinto ezine okanye ezintandathu zombane kwaye ukugcwala kombane kunokubangela umlilo okanye kunokubangela ukuba umaphuli wesekethe akhubeke.
- I-OSHA 29 CFR 1910.304(b) (4) ichaza ukuba izixhobo zokuphuma kufuneka zibe ne-ampere rating engekho ngaphantsi komthwalo oza kunikezelwa. Ukulayisha ngaphezulu komtya wombane akukhuselekanga kwaye kunokudala ingozi yomlilo.
Imingcipheko yokuNxibelela ngokugqithisileyo kunye nokuSetyenziswa ngendlela engafanelekanga kweeNtambo zoKwandiswa
Imithetho ye-OSHA
Kuchasene nemigaqo ye-OSHA ukusebenzisa nasiphi na isixhobo esingavunywanga yilabhoratri yovavanyo eyaziwayo kuzwelonke. [OSHA 29 CFR 1910.303(a)]
Iingcingo zeXeshana
Khumbula, iintambo ezongeziweyo zenzelwe kuphela iintambo zexeshana. Ungasebenzisi 'em ukwenza iintambo ezisisigxina.
Light-Duty Cords
Iintambo zokukhanya azenzelwanga ukunika amandla izinto ezininzi, ngakumbi ezo zinamandla aphezulu. Nantsi into omawuyenze endaweni yoko:
- Sebenzisa intambo enzima
- Faka into enye ngexesha
- Qinisekisa ukuba intambo inokusingatha umthwalo.
Imithombo ekufuneka iqwalaselwe xa uSebenza ngeMicu yaMandla
Imibutho yoRhulumente
- ISebe lezabasebenzi lase-US i-OSHA
- IOfisi yokuThobela - INkongolo yase-US
neMigangatho
- Utoliko olusemgangathweni lwe-OSHA
- NFPA 1 Standard
- UL 1363 Umgangatho
Guides
- Ngowama-2015-16 Ulwazi lweSikhokelo kwiZixhobo zoMbane—INcwadi ye-UL emhlophe [iphe569]
Iinkcukacha ezikhawulezayo
- Iinyani ezikhawulezayo - Imichilo yaMandla kunye neDangerous Daisy Chains
- Iinyani ezikhawulezayo-Iintambo zoLwandiso lweThutyana kunye neziQhagamshelwano zaMandla akufuneki zisetyenziselwe iWiring eSisigxina.
Ukungafani
Daisy Chain Vs Leapfrog
I-Daisy chain wiring ilula kwaye kulula ukuyisebenzisa kwiipaneli zentambo, ngakumbi xa umtya ungekho kumgca othe ngqo. Ifuna ucingo olude olubuyayo, olunokuba ngunobangela wempazamo yomhlaba ukuba alutsalwanga ngokuchanekileyo. I-Leapfrogging, kwelinye icala, itsiba ipaneli nganye yesibini ukuze idibanise intambo kwindlela ebuyayo. Ayifuni i-return wire kwaye ivumela ukwandiswa okungcono kweengcingo emva kweepaneli, ukunciphisa ukubonakaliswa kwazo kwimozulu.
FAQ
Yintoni inzuzo ye daisy chain?
Inzuzo ye-daisy chaining kukuba ivumela izixhobo ezininzi ukuba zidibaniswe kunye ngokulandelelana, okuvumela ukusetyenziswa ngokufanelekileyo kwezixhobo.
Ngaba idayisy chain wiring parallel okanye uthotho?
I-Daisy chain wiring ihambelana.
Ngaba uyakwazi ityathanga ledaisy ngeentambo ezahlukeneyo?
Hayi, awukwazi ityathanga ledaisy elineentambo ezahlukeneyo.
isiphelo
Ukuqukumbela, ityathanga le-daisy yinkqubo yokufaka iintambo ezintsha esetyenziswa kubunjineli bombane kunye ne-elektroniki. Yindlela enkulu yokudibanisa izixhobo ezininzi ngokulandelelana okanye ngendandatho, kwaye ingasetyenziselwa amandla, iimpawu ze-analog, idatha yedijithali, okanye indibaniselwano yayo. Ukuba ujonge ukusebenzisa ikhonkco le-daisy kwisixhobo sakho sombane, qiniseka ukuba uyaziqonda iziseko zenkqubo kunye namacandelo ahlukeneyo ayenzayo. Ukongezelela, qiniseka ukuba usebenzisa i-terminators ezichanekileyo kunye ne-amplifiers ukuqinisekisa ukuba umqondiso awuphazamiseki. Ngolwazi oluchanekileyo kunye nezixhobo, unokwenza lula ukwenza inkqubo ye-daisy chain eya kusebenza kwiimfuno zakho.
NdinguJoost Nusselder, umseki weNeaera kunye nomthengisi womxholo, utata, kwaye ndiyakuthanda ukuzama izixhobo ezitsha ngesiginkci entliziyweni yothando lwam, kunye neqela lam, ndisenza amanqaku eblogi anzulu ukusukela ngo-2020. ukunceda abafundi abathembekileyo ngokurekhoda kunye neengcebiso zesiginci.
