Ib, Technical hauv paus ntsiab lus: Kev txhawb nqa los ntawm cov khoom siv kho vajtse mus rau software tsav tsheb
1. Kho vajtse Architecture: Flexibility nyob rau hauv Dot Matrix zaub thiab Video nco tsim
Kev hloov kho ntawm ntsuas ntsuas LCD yog raws li nws cov dot matrix zaub qauv. Ua ib qho piv txwv ntawm 128 × 64 dot matrix LCD, nws lub cim xeeb tau muab faib ua 8 nplooj ntawv (Page0-Page7), txhua nplooj ntawv muaj 128 bytes, sib xws rau 128 kab los ntawm 8 kab ntawm pixels. Piv txwv li, lub cim xeeb qhov chaw nyob ntawm Page0 yog 0x80-0xFF, thiab sab saum toj 5 khoom ntawm txhua byte tswj lub pixel brightness (1 rau brightness, 0 rau brightness), thaum lub hauv qab 3 khoom feem ntau yog tshwj tseg los yog siv rau ncua functionality. Qhov kev tsim no tso cai rau cov neeg siv los tswj lub xeev ntawm txhua pixel los ntawm kev hloov kho cov ntaub ntawv nco video, yog li ua tiav cov duab kos duab thiab cov cim.
Rau cov kev daws teeb meem siab dua LCDs (xws li 320 × 240), lub cim xeeb qauv yuav nyuaj dua, tab sis cov ntsiab lus tseem ceeb tseem zoo ib yam. Piv txwv li, 4.2-nti industrial LCD siv RGB thawj xim thev naus laus zis kom ua tiav 16.77 lab xim qhia los ntawm 24 ntsis xim qhov tob (8-ntsis liab, 8-ntsis ntsuab, 8-ntsis xiav ib pixel), muab lub hauv paus kho vajtse rau cov duab nyuaj thiab cov teebmeem gradient.
2. Software tsav tsheb: Lub tshuab hluav taws xob cim thiab cov duab kos duab algorithm
Lub peev xwm customization ntawm LCD tsis tuaj yeem ua tiav yam tsis muaj kev txhawb nqa ntawm software tsav tsheb. Noj cov cim LCD (xws li 1602 module) ua piv txwv, nws tsim -hauv cov cim tsim hluav taws xob (CGROM) khaws cov ntaub ntawv font ntawm cov qauv ASCII cov cim, tab sis cov neeg siv tuaj yeem hloov cov cim los ntawm CG RAM (Cim Generator RAM). CG RAM muaj tag nrho ntawm 64 bytes, muab faib ua 8 pawg ntawm 8 bytes txhua, thiab tuaj yeem khaws 8 tus cim kev cai hauv 5 × 8 dot matrix. Piv txwv li, cov neeg siv tuaj yeem txhais lub cim ntsuas kub, sau nws cov ntaub ntawv font rau hauv CG RAM, thiab tso saib lub cim los ntawm kev xa tus lej cim (xws li 0x00).
Rau cov duab LCDs, software tsav tsheb yuav tsum tau siv ntau cov algorithms, nrog rau kev sib koom ua ke, kos duab kos duab, kab kos, thiab cheeb tsam sau. Piv txwv li, ntawm lub LCD uas tau tsav los ntawm STM32 microcontroller, cov duab kos duab tuaj yeem ua tiav los ntawm cov haujlwm hauv qab no:
c
1void LCD_DrawPoint(uint16_t x, uint16_t y, uint16_t xim) {
2 LCD_SetCursor(x, y); // Teem lub coordinates
3 LCD_WriteData(color >>8); // Sau cov ntaub ntawv xim 8-ntsis siab
4 LCD_WriteData(xim & 0xFF); // Sau cov ntaub ntawv xim 8-ntsis qis
5}
Los ntawm kev sib txuas cov ntsiab lus kos duab, cov duab yooj yim xws li kab, duab plaub, thiab lub voj voog tuaj yeem kos ntxiv, thiab txawm tias cov duab nyuaj tuaj yeem ua tiav los ntawm kev thauj cov ntaub ntawv bitmap (xws li BMP hom).
2, Daim Ntawv Thov Kev Lag Luam: Customized Practice from Industrial Control to Medical Equipment
1. Muaj kev tswj hwm: dynamic graphics thiab cov xwm txheej qhia
Hauv kev tswj hwm kev lag luam, lub peev xwm hloov kho ntawm LCD yog dav siv hauv cov khoom siv saib xyuas thiab kev lag luam interface tsim. Piv txwv li, PLC maub los ntawm cov kab ntau lawm siv 4.2-nti LCD los tso saib cov cuab yeej ua haujlwm (xws li ntsuab qhia qhov qub thiab liab qhia qhov ua txhaum), cov ntaub ntawv tsim khoom (xws li cov zis thiab tawm los), thiab cov ntawv qhia ua haujlwm (xws li pib, nres, parameter nqis) los ntawm cov duab kev cai. Nws cov zaub interface suav nrog cov hauv qab no:
Dynamic dashboard: Tso cov khoom siv thauj khoom los ntawm kev kos lub voj voog kev nce qib.
Status icons: Customize hwj chim, tswb, network kev twb kev txuas, thiab lwm yam icons txhim khu kev nyeem ntawv.
Kev txhawb nqa ntau hom lus: Los ntawm kev thauj cov ntaub ntawv font hauv ntau hom lus, kev hloov ntawm Suav thiab Askiv tuaj yeem ua tiav.
2. Cov cuab yeej kho mob: siab - cov duab kos thiab cov ntaub ntawv pom
Cov cuab yeej kho mob yuav tsum tau ua kom pom qhov tseeb thiab muaj peev xwm kho tau rau LCDs. Piv txwv li, lub tshuab kuaj mob ultrasound portable siv 5-nti TFT LCD thiab ua tiav cov haujlwm hauv qab no los ntawm kev hloov kho tsav tsheb:
Lub sij hawm tiag tiag waveform zaub: Kos duab ultrasound ntawm lub siab refresh tus nqi (Ntau dua lossis sib npaug rau 60Hz) kom ntseeg tau tias cov duab zoo nkauj thiab tsis muaj dab tsi.
Anatomical qauv annotation: Thauj khoom ua ntej khaws cia hauv lub cev anatomical dluab thiab tso saib ultrasound dluab los ntawm transparency overlay.
Kov kev sib cuam tshuam: Integrated capacitive touch screen, txhawb kev zoom, yias thiab lwm yam haujlwm los txhim kho kev kuaj mob.
3. Kev saib xyuas ib puag ncig: Ntau qhov ntsuas graphical zaub
Cov cuab yeej saib xyuas ib puag ncig yuav tsum tau ua ib txhij tso saib ntau yam tsis xws li qhov kub thiab txias, av noo, PM2.5, thiab lwm yam. Lub peev xwm hloov kho ntawm LCD tuaj yeem ua tiav graphical kev koom ua ke ntawm cov ntaub ntawv. Piv txwv li, ib qho chaw saib xyuas huab cua zoo siv 7-nti LCD, thiab nws cov qauv tsim muaj xws li:
Trend chart: Tso saib cov kev hloov pauv hauv PM2.5 concentration hauv 24 teev siv kab ntawv.
Xim thaiv qhov taw qhia: Siv cov xim sib txawv (ntsuab, daj, liab) los qhia txog huab cua zoo.
Daim ntawv qhia overlay: Siv GPS qhov chaw, cim qhov chaw saib xyuas cov ntsiab lus thiab ib puag ncig cov pa phem ntawm daim ntawv qhia.
3, Customization txheej txheem: tag nrho cov saw hlau tswj los ntawm qhov yuav tsum tau tsom xam mus rau kev siv ntau lawm
1. Kev txheeb xyuas qhov yuav tsum tau ua: Qhia meej txog cov xwm txheej ntawm daim ntawv thov thiab tso saib tsis pom
Thawj kauj ruam hauv kev kho lub LCD yog kom qhia meej cov cai, suav nrog:
Kev Siv: Kev tswj hwm, khoom siv kho mob, lossis khoom siv hluav taws xob?
Display parameters: daws teeb meem (piv txwv li . 320 × 240), brightness (piv txwv li . 500cd/m ²), contrast (piv txwv li . 1000: 1).
Interface hom: TTL, MCU, LVDS los yog HDMI, sib xws nrog lub ntsiab tswj lub rooj tsavxwm.
Cov kev xav tau fais fab: kev khiav hauj lwm voltage (xws li 3.3V lossis 5V), kev siv hluav taws xob (xws li Tsawg dua lossis sib npaug rau 2W).
2. Kev Tsim Kho Kho vajtse: Kev xaiv thiab kev ua kom zoo ntawm Circuit Court
Xaiv qhov tsim nyog LCD module raws li qhov yuav tsum tau ua thiab tsim lub voj voog tsav tsheb. Piv txwv li:
Backlight tsim: LED backlight yog siv, thiab kev hloov qhov ci ci tiav los ntawm PWM dimming.
Kev tiv thaiv kev cuam tshuam tsim: Hauv kev lag luam ib puag ncig, nws yog ib qho tsim nyog yuav tsum tau ua kom cov lim dej lim dej thiab cov hlaws sib nqus kom tsis txhob cuam tshuam electromagnetic.
Tsis tshua muaj kub drift them nyiaj: Nyob rau hauv ib tug dav kub ntawm -40℃mus rau 85 degree, lub tsav tsheb voltage yog dynamically hloov los ntawm ib tug kub sensor los xyuas kom meej qhov zoo sib xws.
3. Kev txhim kho software: tsav tsheb programming thiab interface tsim
Kev txhim kho software yog cov txheej txheem tseem ceeb ntawm kev hloov kho, suav nrog:
Cov neeg tsav tsheb hauv qab: Siv cov haujlwm yooj yim xws li kev sau npe, sau cov ntaub ntawv, thiab nyeem cov ntaub ntawv, thiab muab lawv ua cov tsev qiv ntawv ua haujlwm.
Kev tsim kho duab hauv tsev qiv ntawv: Raws li tus neeg tsav tsheb hauv qab, txhim kho cov haujlwm siab heev xws li kos duab kos duab, kab kos, thiab sau.
Kev tsim interface: Siv cov cuab yeej xws li LCD Assistant los tsim kev sib txuas thiab tsim cov ntaub ntawv font thiab duab.
4. Kev sim thiab ua kom zoo: Ua kom muaj kev ntseeg siab thiab ua haujlwm zoo
Customized LCDs xav tau kev sim nruj, suav nrog:
Kev kuaj kev laus: Ua haujlwm tsis tu ncua rau 1000 teev kom pom qhov ci ntsa iab thiab qhov tsis xws luag.
Kev ntsuam xyuas ib puag ncig: Tshawb xyuas qhov ua tau zoo hauv qhov kub siab (85 degree), qhov kub tsis txias (-40 degree), thiab cov av noo siab (90% RH) ib puag ncig.
Electromagnetic compatibility testing: Ua raws li IEC 61000 tus qauv kom ntseeg tau tias muaj peev xwm tiv thaiv - cuam tshuam.
