LED zaub tswj qhov system yog qhov tseem ceeb ntawm lub vijtsam LED. Nws feem ntau tau txais cov duab thiab cov ntaub ntawv video los ntawm lub computer qhov chaw nres nkoj serial lossis DVI interface, khaws cia rau hauv lub cim xeeb thav duab, thiab tom qab ntawd qhia cov ntsiab lus. Nws yog feem ntau muab faib ua synchronous thiab asynchronous systems. Hauv qab no yog kev sib piv kev txheeb xyuas ntawm ob qhov kev tswj hwm no:
I. Synchronous LED Display Control System
Qhov system no tsuas yog siv los tso saib video, ntawv nyeem, duab, thiab tshaj tawm hauv lub sijhawm. Nws feem ntau yog siv rau sab hauv lossis sab nraum zoov puv -xim loj- npo zaub. Lub synchronous tswj system ua haujlwm tseem ceeb ib yam li lub khoos phis tawj saib, hloov kho yam tsawg kawg 60 thav duab ib ob los qhia cov duab ntawm lub computer saib hauv lub sijhawm. Nws feem ntau muaj ntau- greyscale xim zaub muaj peev xwm, ua tiav cov teebmeem kev tshaj tawm xov xwm.
Nws cov yam ntxwv muaj xws li: tiag tiag- lub sijhawm ua haujlwm, kev nthuav dav nplua nuj, kev ua haujlwm nyuaj, thiab tus nqi siab. Txij li thaum cov ntsiab lus ntawm lub khoos phis tawj saib tau tshwm sim synchronously, yog tias lub khoos phis tawj raug kaw, LED zaub yuav tsis tso tawm dab tsi, yog li txwv lub sijhawm ua si. Cov kab ke no feem ntau yog siv rau hauv qhov chaw uas muaj siab tiag tiag - lub sijhawm xav tau.
II. Asynchronous LED zaub Control System
Kuj tseem hu ua offline LED zaub tswj qhov system lossis daim npav offline. Cov kab ke no tsuas yog siv los tso saib ntau yam ntawv, cim, duab, lossis cov animations. Cov ntaub ntawv tso tawm tau raug kho los ntawm lub khoos phis tawj, ua ntej- thauj khoom rau hauv LED npo lub cim xeeb ntawm lub chaw nres nkoj RS232/485, thiab tom qab ntawd tso tawm qhov screen los ntawm kev tshuaj ntsuam hauv lub voj, muab cov kev paub ntau yam thiab ntau yam.
Nws cov yam ntxwv muaj xws li: kev ua haujlwm yooj yim, tus nqi qis, thiab kev siv dav dav. Nws qhov txiaj ntsig tseem ceeb tshaj plaws yog lub peev xwm los tswj cov ntsiab lus ntawm lub vijtsam hauv cheeb tsam, asynchronously nrog cov ntsiab lus ntawm lub computer saib. Cov ntsiab lus raug kho rau hauv lub computer ua ntej, tom qab ntawd xa mus rau daim npav tswj hwm, uas tom qab ntawd qhia nws. Yog li ntawd, txawm tias thaum lub khoos phis tawj tawm, LED zaub tseem tuaj yeem qhia cov ntaub ntawv, txawm hais tias cov ntaub ntawv tso tawm yuav raug txwv vim yog daim npav tswj lub peev xwm. Nws yog qhov tsim nyog rau qhov chaw uas tiag tiag - lub sijhawm ua haujlwm yuav tsum tsis siab.
