1. Taw qhia rau DMX

DMX (Digital Multiplex) yog lub caj qaum ntawm cov theem niaj hnub thiab kev teeb pom kev zoo hauv vaj tse. Yug los ntawm kev xav tau kev ua yeeb yam, nws ua rau ib tus maub los xa cov lus qhia meej rau ntau pua lub teeb, pos huab, LEDs, thiab txav taub hau ib txhij. Tsis zoo li cov analog dimmers yooj yim, DMX hais lus hauv digital "pob ntawv," cia cov neeg tsim qauv choreograph nyuaj xim ploj, cov qauv strobe, thiab cov teebmeem zoo sib xws.

2. Keeb kwm luv luv ntawm DMX

DMX tau tshwm sim nyob rau hauv nruab nrab-1980s raws li kev lag luam kev siv zog los hloov cov kev cai analog tsis sib xws. Lub xyoo 1986 DMX512 tus qauv tau piav qhia yuav ua li cas xa mus txog 512 txoj hauv kev ntawm cov ntaub ntawv hla lub thaiv kab thaiv, sib sau ua ke li cas hom thiab cov khoom siv sib tham. Txawm hais tias muaj cov txheej txheem tshiab, DMX512 tseem yog qhov kev txhawb nqa dav tshaj plaws, tau txais txiaj ntsig rau nws txoj kev yooj yim, kev ntseeg tau, thiab kev ua haujlwm ntawm lub sijhawm.

3.Core Cheebtsam ntawm DMX Systems

 3.1 DMX Controller

 Lub "lub hlwb" ntawm koj lub teeb:

• Hardware Consoles: Lub cev boards nrog faders thiab nyees khawm.

• Software Interfaces: PC los yog ntsiav tshuaj apps uas qhia cov kab rau sliders.

• Hybrid Units: Muab cov tswj onboard nrog USB lossis Ethernet outputs.

 3.2 DMX Cables thiab Connectors

High-zoo cov ntaub ntawv kis tau tus mob nyob ntawm:

• 5-Pin XLR Cables: Ua raws li tus qauv, txawm hais tias 3-pin XLR yog ib txwm nyob rau hauv nruj pob nyiaj siv.

• Terminators: A 120 Ω resistor kawg ntawm kab tiv thaiv kev cuam tshuam cov teeb liab.

• Splitters thiab Boosters: Faib ib lub ntiaj teb mus rau ntau qhov kev khiav tsis muaj hluav taws xob poob.

 3.3 Fixtures thiab decoders

 Teeb thiab teebmeem hais DMX los ntawm:

• Fixtures nrog Built-In DMX Ports: Tsiv taub hau, PAR cov kaus poom, LED tuav.

• Sab nrauv Decoders: Hloov cov ntaub ntawv DMX rau hauv PWM lossis analog voltage rau strips, raj, lossis kev cai rigs.

• UXL Cim npe: Qee qhov khoom siv txhawb nqa wireless DMX, xav tau cov khoom siv transceiver es tsis txhob siv cov cables.

4.DMX sib txuas lus li cas

4.1 Cov qauv teeb liab thiab cov channel

DMX xa cov ntaub ntawv hauv pob ntawv txog li 513 bytes:

1. Pib Code (1 byte): Ib txwm xoom rau cov teeb pom kev zoo.

2. Cov ntaub ntawv Channel (512 bytes): Txhua byte (0–255) teeb tsa kev siv, xim, yias / qaij, lossis cov nyhuv nrawm.

Txhua lub cuab yeej mloog ntawm nws cov channel (s) thiab hnov ​​​​mob rau tus nqi byte nws tau txais.

  4.2 Chaw Nyob thiab Lub Ntiaj Teb

1. Lub Ntiaj Teb yog ib txheej ntawm 512 raws.

2. Rau kev teeb tsa loj, ntau lub ntiaj teb tuaj yeem daisy-chained lossis xa tawm ntawm Ethernet (ntawm Art-NET lossis sACN).

3. DMX Chaw Nyob: Tus naj npawb xov tooj pib rau kev sib tw - tseem ceeb kom tsis txhob muaj ob lub teeb sib ntaus sib tua ntawm tib cov ntaub ntawv.

5.Setting ib qho yooj yim DMX Network

5.1 Npaj Koj Cov Txheej Txheem

1. Daim Ntawv Qhia Fixtures: Sketch koj qhov chaw, sau txhua lub teeb nrog nws qhov chaw nyob DMX thiab ntug.

2. Suav Cable Runs: Khaws tag nrho cable ntev raws li kev txwv txwv (feem ntau 300 meters).

5.2 Cov lus qhia txuas thiab cov kev coj ua zoo tshaj plaws

1. Daisy-Chain: Khiav cable los ntawm maub los → teeb → tom ntej teeb → terminator.

2. Shielding: Tsis txhob coiling cables; kom lawv nyob deb ntawm cov kab hluav taws xob kom txo tau kev cuam tshuam.

3. Tag Txhua Yam: Kos ob qhov kawg ntawm txhua lub cable nrog ntug thiab pib channel.

5.3 Kev teeb tsa thawj zaug

1. Muab Chaw Nyob: Siv cov khoom noj khoom haus los yog DIP keyboards.

2. Hwj chim On thiab Test: Maj mam nce kev siv los ntawm tus maub los kom paub meej cov lus teb raug.

3. Kev daws teeb meem: Yog tias lub teeb tsis teb, sib pauv cable xaus, tshawb xyuas lub tshuab hluav taws xob, thiab paub meej tias kev sib raug zoo channel.

6. Kev siv tswv yim ntawm DMX

1. Concerts & Festivals: Coordinate stage washes, txav teeb, thiab pyrotechnics nrog suab paj nruag.

2. Theatre Productions: Pre-program nuanced fades, xim cues, thiab blackout sequences.

3. Architectural Teeb pom kev zoo: Animate lub tsev facades, txuas hniav, los yog pej xeem kos duab installation.

4. Trade Shows: Kos xim rau lub rooj muag zaub nrog cov xim dynamic cheb thiab pom cues.

7.Kev daws teeb meem ntau DMX teeb meem

1. Flickering Fixtures: Feem ntau vim tsis zoo cable los yog ploj lawm terminator.

2. Lub teeb tsis teb: Txheeb xyuas qhov teeb meem tsis raug lossis sim hloov cov kab xav tau.

3. Sib Nqus Tswjhwm: Saib rau electromagnetic cuam tshuam-reroute los yog ntxiv ferrite hlaws dai.

4. Overloaded Split: Siv powered splitters thaum ntau tshaj 32 pab kiag li lawm sib koom ib ntug.

8. Cov lus qhia siab heev thiab kev siv tswv yim

1. Pixel Mapping: Kho txhua LED raws li ib tus neeg channel los pleev xim cov yeeb yaj kiab lossis cov yeeb yaj kiab thoob plaws phab ntsa.

2. Timecode Sync: Txuas DMX cues rau lub suab lossis video playback (MIDI / SMPTE) rau lub sijhawm zoo kawg nkaus.

3. Kev Sib Tham Sib Tham: Kev sib koom ua ke ntawm cov lus tsa suab lossis cov neeg tuaj saib uas tau tsav los ua kom lub teeb pom kev zoo.

4. Wireless Innovation: Tshawb Wi-Fi lossis cov tswv cuab ntawm RF DMX systems rau kev teeb tsa uas cov cables tsis siv tau.