Fitilar Fitilar Fitilar Fitilar Fitilar Haske don HD Watsawa: FAQ mai siye

Idan kuna ƙayyadad da hasken filin filin wasa na LED don watsa shirye-shiryen HDTV, 'haske isa' ba shine ɓangaren wuya ba. Abu mai wuyar sha'ani shine nisantar saƙar kyamara, mirgina kayan tarihi, da tasirin stroboscopic-musamman lokacin dimming, gudana akan janareta, ko haɗa kayan aiki a cikin batches.

An rubuta wannan FAQ don masu siye-mataki-mataki (masu rarrabawa, ƙungiyoyin aiki, da sayayya) waɗanda ke buƙatar takamaiman hanyar da aka shirya don saita buƙatun flicker, tabbatar da su, da rage haɗarin shigarwa..

1. Flicker-free LED filin wasa fitilu don HD watsa shirye-shirye: abin da gaske yake nufi

'Flicker-free' ya kamata yana nufin za ku iya tafiyar da kyamarorinku a ƙimar firam ɗinku na maƙasudi + (da matakan da ake tsammanin ragewa) ba tare da ƙararrawa ko ƙwanƙwasa ba , kuma ma'aunin hasken ku da aka auna yana da ƙarancin isa don guje wa kayan tarihi na haske na ɗan lokaci.

Don siye, kar a karɓi 'free-flicker' azaman alamar talla. Ƙayyade ma'aunin awo (kashi flicker/modulation, ko PstLM/SVM) kuma yana buƙatar hanyar gwaji.

2. Wadanne ma'auni na flicker zan tambaya: kashi flicker, flicker index, PstLM, ko SVM?

Nemi kashi flicker (zurfin daidaitawa) a maɓallan maɓalli da yanayin aiki (cikakken ƙarfi + dimming), kuma ƙara PstLM/SVM idan kuna son madaidaicin salon wucewa/harshen gazawa.

• Zurfin flicker bisa dari / daidaitawa : ma'aunin girman kai tsaye. Yana da sauƙi a kwatanta tsakanin masu siyarwa lokacin da saitin gwajin ya yi daidai.

• PstLM : ana amfani da shi don ƙima mai ƙarancin mitar flicker a cikin ma'auni; sau da yawa ana magana da iyaka na PstLM ≤ 1.0 a cikin jagora na gama gari (duba tattaunawa a cikin PstLM da SVM awo (IEC TR 61547-1 / IEC TR 63158) da misali iyaka ).

• SVM : yana hari ga stroboscopic ganuwa a mafi girma mitoci; wasu iyakokin nassoshi na jagora kamar SVM ≤ 1.6 (da tsauraran dabi'u a cikin wasu gwamnatoci), an sake taƙaita su a cikin wannan bayanin uPowerTek.

Idan babban haɗarin ku shine haɗakar kyamara (watsawa), har yanzu kuna buƙatar gwajin karɓa na tushen kamara ban da lambobi.

3. Menene IEEE 1789 ke faɗi game da iyakoki?

IEEE 1789 ana yawan amfani dashi azaman tunani mai amfani saboda yana haɗa mitar flicker tare da matsakaicin matsakaicin kashi flicker (modulation).

Fassarar da aka saba amfani da ita tana bayyana layuka guda biyu:

• Yanki mai ƙarancin haɗari : kashi dari ≤ 0.08 × mitar (Hz)

• Babu yankin tasiri da za a iya gani : kashi dari ≤ 0.033 × mitar (Hz)

A 120 Hz, waɗannan layin suna fassara zuwa kusan 9.6% (ƙananan haɗari) da kusan 4% (babu wani tasiri mai iya gani), kamar yadda aka taƙaita IEEE 1789-2015 jagorar flicker (0.08 × f da 0.033 × f Lines).

3.1 Ta yaya mai siye zai yi amfani da IEEE 1789 a cikin aikin filin wasa?

Yi amfani da shi azaman gajeriyar hannu lokacin kwatanta zaɓuɓɓuka, sannan inganta tare da ma'auni da gwajin kyamara.

Idan ma'auni guda biyu duk suna da'awar 'kyauta,' amma ɗayan zai iya nuna ma'auni na daidaitawa a wuraren aikin ku kuma ɗayan ba zai iya ba, wannan shine amsar jerin sunayen ku.

4. A 100-120 Hz, menene kashi na flicker aka karɓa don watsa shirye-shirye?

Babu lamba ɗaya ta duniya wacce kowace kamara, rufewa, da yanayin dimm za su raba. Amma a aikace, 100/120 Hz shine yankin haɗari saboda an haɗa shi da abubuwan da ke da alaƙa (da masu jituwa) kuma sau da yawa yana haifar da bandeji a ƙarƙashin saurin rufewa.

Don siyan matakin yanke shawara, yi amfani da wannan hanyar kashi biyu:

1. Saita maƙasudin lamba za ku iya tabbatarwa : ayyuka da yawa suna nufin kiyaye kashi flicker a 100/120 Hz a cikin lambobi ɗaya , kuma don yankuna masu mahimmancin watsa shirye-shirye galibi suna kaiwa ~ 5% ko ƙasa a wuraren aiki masu mahimmanci.

2. Sanya kyamarar ta gwada kofa ta ƙarshe : idan kyamarar watsa shirye-shiryen ku ta ga yin ɗamara a ƙimar rufewa/ firam ɗin da aka bayar, ma'aunin lambobi kaɗai bai kare ku ba.

Pro Tukwici : Lokacin da masu samar da kayayyaki suka faɗi 'ƙananan flicker,' tambayi 'A wane mita, a wane matakin dimming, kuma a auna ta wace hanya?' Idan ba za su iya ba da amsa a cikin imel ɗaya ba, yi tsammanin abubuwan ban mamaki a shafin.

4.1 Me yasa 100/120 Hz yayi kama da 'lafiya' ga mutane amma ya kasa kan kyamara

Mutane na iya jure wa wasu gyare-gyare a waɗannan mitoci, yayin da kyamarori-musamman tare da masu rufewa-na iya canza shi zuwa ɗigon gani ko bugun jini. Abin da ya sa dole ne karɓar watsa shirye-shirye ya haɗa da gwajin tushen kamara , ba kawai duban gani na ɗan adam ba.

5. Abin da topology direba a zahiri rage flicker a LED filin wasa lighting?

Ga fitilu masu daraja a filin wasa, ' ƙwaƙƙwaran ƙwanƙwasa' galibi matsala ce ta direba + , ba matsalar guntuwar LED ba.

Nemo ƙira wanda ke riƙe da ingantaccen fitarwa na yau da kullun tare da ƙaramin ripple a kan kaya da zafin jiki.

5.1 Constant-current (CC) batutuwa: abin da za a nema

Tambayi ko luminaire yana amfani da direba na yau da kullun (ba kawai hanyar gyarawa + capacitor ba) kuma nemi:

• Fitar ripple / kashi flicker a cikakken iko

• Fitowar ripple/kashi flicker a matakan raguwa da za ku yi amfani da su

• Hanyar dimming (misali, 0-10V, DALI, DMX/RDM) da kuma yadda flicker ke yi yayin dimming

5.2 An ƙirƙiri flicker wurare biyu: ƙarshen gaba da ƙa'idodin LED na yanzu

• Ƙarshen gaba (PFC/matakin gyara) : ƙarancin tacewa na iya barin ƙaƙƙarfan abubuwan manyan abubuwa biyu (100/120 Hz) waɗanda ke nunawa azaman daidaitawa.

• Matsayin ƙa'ida na yanzu : matakin DC/DC da madauki na sarrafawa sun ƙayyade yawan ripple da halayen wucin gadi ya isa LEDs.

5.3 PWM vs high-frequency modulation: me 'mai kyau' yayi kama

PWM ba ta da kyau ta atomatik. Makullin shine ko mitar daidaitawa da zurfin ƙirƙira kayan tarihi don saitunan kyamararku.

Ƙirƙirar abokan ciniki:

• Fi son ƙira waɗanda ke tura juzu'i zuwa babban mitar (inda aiki) da kiyaye zurfin na'ura mai sauƙi.

• Bukatar mai siyarwa don nuna aiki a saitunan kyamarar da kuka yi niyya.

6. Ta yaya zan gwada flicker a kan site (kayan aiki + kamara), ba tare da lab?

Yi amfani da gwajin Layer biyu: ma'aunin kayan aiki don ƙididdigewa, da gwajin kyamarar watsa shirye-shirye don tabbatar da cewa babu bandeji.

6.1 Gwajin kayan aiki: kayan aikin da za a yi amfani da su

Kowane ɗayan waɗannan na iya aiki idan aka yi amfani da su akai-akai:

• Na'urar aunawa ta flicker / haske wanda ke ba da rahoton kashi flicker da (mafi kyau) PstLM/SVM

• Oscilloscope + photodiode (ƙarin saitin, amma a bayyane)

6.2 Gwajin kayan aiki: jerin matakan mataki-mataki

1. Zaɓi wuraren aiki mafi muni : cikakken ƙarfi, matakin ragewa na yau da kullun (misali, 30–50%), da mafi ƙarancin matakin ƙarancin da ake tsammani.

2. Tsaya saitin : nisan auna iri ɗaya, maƙasudin manufa iri ɗaya, yanayin yanayi iri ɗaya.

3. Yi rikodin kashi flicker a kowane wurin aiki kuma lura da mafi girman bangaren mitar (100/120 Hz vs high-kHz).

4. Idan akwai, yi rikodin PstLM/SVM don yanayin fasfo/harshen gazawa.

5. Maimaita kan gyare-gyare da yawa daga kwali daban-daban don kama bambancin tsari.

6.3 Gwajin kamara: yadda ake haifar da haɗarin watsa shirye-shirye cikin sauri

1. Yi amfani da ainihin kyamarar watsa shirye-shirye idan zai yiwu. In ba haka ba, yi amfani da kyamara mai ikon rufewa da hannu da sarrafa ƙimar firam.

2. Gwaji a ƙimar firam ɗin da aka tsara (misali, 50/60 fps da kowane yanayi mai sauri da kuke tsammani don sake kunnawa) kuma bambanta saurin rufewa a cikin ƴan dabi'u gama gari.

3. Yi rikodin tare da kayan aiki a cikakken ƙarfi kuma a matakan rage rage aiki.

4. Duba don bandeji a cikin:

   • wurare masu haske masu haske (maganin turf)

   • sauri pans

   • shirye-shiryen bidiyo a hankali

Idan bandeji ya bayyana, bi da shi azaman batun tsarin: halayen direba, hanyar dimming, da kuma wani lokacin gauraye nau'ikan kayan aiki ko kayan sarrafawa.

7. Menene zan saka a cikin RFQ dina don hana abin mamaki 'free-flicker'?

7.1 RFQ harshe za ka iya kwafa

• Samar da ma'aunin flicker kashi (zurfin daidaitawa) a 100/120 Hz , a ƙarfin 100% , kuma a matakan dimming guda biyu da mai siye ya ayyana.

• Samar da ma'auni masu alaƙa (PstLM da SVM) idan akwai, auna a 100% lodi.

• Tabbatar da nau'in direba (matsakaicin halin yanzu) da ƙa'idar dimming.

• Bayar da samfur(s) don gwajin kamara a ƙimar firam ɗin mu da abin rufewa.

7.2 Masu rarraba cak na siyarwa sun damu da su

• Shirye-shiryen takaddun: zane na wayoyi, ƙayyadaddun direba, da tsarin rahoton gwaji

• Wutar lantarki ta shigarwa: tabbatar da dacewa da ƙarfin wutar lantarki (misali, duba bayanin kula na KEOU akan 277-480V dacewar shigarwar don wuraren kasuwanci idan an zartar)

• Ikon gani: tabbatar da kusurwoyin katako da sarrafa kyalli, kuma daidaita tare da shimfidar filin ku (bayani: Zaɓin kusurwar katako don filayen wasanni )

8. Abin da KEOU Lighting zai iya ba da shi don filin wasa da hasken ruwa mai girma

Idan kuna gina jerin zaɓaɓɓu, yawanci kuna son mai siyarwa wanda zai iya tallafawa samarwa, takaddun shaida, da ingantaccen samarwa-musamman idan kuna sake siyarwa cikin ayyukan.

KEOU Lighting yana ba da cikakken jerin fitilu na ambaliya (COB / SMD / DOB) don al'amuran kasuwanci da na waje - duba KEOU LED jerin hasken ambaliyar ruwa (COB / SMD / DOB) cibiya don kewayon.

Don ma'aunin wutar lantarki na filin wasa, KEOU kuma ya lissafa Fitilar ambaliya ta filin filin wasa IP66 (100W-1000W) , wanda zai iya zama wurin farawa don samfuri da daidaitawa.

(Har yanzu zaɓin ya dogara da shimfidar filin ku, tsayin hawa, na'urorin gani, da buƙatun kamara.)

9. Mataki na gaba: sami ƙididdiga tare da tsarin gwajin flicker

Idan kun riga kuna da BOM ko matakan lux masu niyya, aika shi kuma ku nemi mu dace da na'urorin gani + wattage kuma ku shirya shirin tabbatarwa na flicker don saitunan kyamararku.

Nemi daga Hasken KEOU:

• Kalmomin da aka yi daidai da BOM ɗinku

• Samfura don gwajin kyamarar yanar gizon ku

• Tsarin rahoton ma'aunin flicker (kashi flicker + maki aiki)

Fara a nan: Fitilar ambaliya ta waje don haskaka babban yanki ko tuntuɓar ƙungiyarmu ta hanyar cibiyar samfur.