1, Segmented LCD: Ntsuas tus nqi thiab kev ntseeg tau
Segment LCD yog cov cuab yeej siv dav tshaj plaws hauv kev siv hluav taws xob ntsuas hluav taws xob, thiab nws cov ntsiab lus tseem ceeb yog los tso saib cov ntaub ntawv los ntawm kev sib txuas ua ke ntawm tus cwj mem (xws li 7-ntu lej thiab 16 ntu cim). Raws li kev tswj lub peev xwm ntawm tus tsav nti, segmented LCD tuaj yeem muab faib ua ob hom: hom yooj yim thiab hom kev txhim kho:
Basic segment code screen
Siv cov chips tsav tsheb xws li PCF8566 (96 ntu) thiab MC14500 (48 ntu), lub sijhawm qhib / tawm ntawm tus cwj mem ntu yog tswj hwm los ntawm electrodes, thiab tsuas yog txhawb nqa cov duab ntawm cov lej, ntawv, thiab cov cim yooj yim. Hom LCD no yog siv dav hauv ib qho -theem hluav taws xob hluav taws xob ntsuas hluav taws xob thiab ntau tus ntsuas ntsuas vim nws cov qauv yooj yim thiab tus nqi qis (ib chav nqi tuaj yeem qis li 0.5 yuan). Piv txwv li, ib qho -theem zog ntsuas LCD teev los ntawm Lub Xeev Grid tus qauv muaj qhov pom qhov loj ntawm 60mm × 30mm, cov duab digital qhov siab tsis pub tsawg dua 9mm, thiab Suav cov cim qhia qhov siab tsis tsawg dua 4mm. Nws lub luag haujlwm tseem ceeb yog los tso saib cov txiaj ntsig ntawm hluav taws xob, lub sijhawm ntsuas, thiab cov lej txhaum hauv kev sib hloov.
Txhim kho ntu ntu code screen
Los ntawm kev txhim kho cov tsav tsheb nti (xws li HT1621 txhawb nqa 128 ntu tswj) lossis kev sib koom ua ke ntawm cov teeb pom kev zoo, cov ntsiab lus tsim tawm thiab kev sib cuam tshuam yooj yim tuaj yeem ua tiav. Piv txwv li, peb lub -theem multifunctional zog ntsuas tau txais FSTN (formatted super twisted nematic) cov khoom siv LCD, nrog rau kev ua haujlwm kub ntawm -25℃txog 80 degree, zoo sib xws li cov TN cov ntxaij vab tshaus, thiab tuaj yeem synchronously tso saib 12 yam xws li voltage, tam sim no, fais fab mov, thiab lwm yam. Hom LCD no tseem txhawb nqa khawm ua rau nplooj ntawv flipping zaub, thiab cov neeg siv tuaj yeem hloov mus saib cov ntaub ntawv keeb kwm xws li lub hli tam sim no kev siv hluav taws xob, kev siv hluav taws xob lub hli dhau los, thiab qhov xav tau siab tshaj plaws los ntawm cov khawm vaj huam sib luag.
Kev lag luam tus qauv txwv: Lub Xeev Grid's "Smart Energy Meter Type Specification" qhia meej tias LCD ntawm lub ntsuas hluav taws xob yuav tsum tau txais cov keeb kwm dawb nrog cov ntawv dub tsim, thiab cov polarizer yuav tsum muaj kev tiv thaiv UV kom tsis txhob tso saib degradation tshwm sim los ntawm kev siv sab nraum zoov ntev -. Nyob rau tib lub sijhawm, qis- qhov ntsuas kub hluav taws xob hluav taws xob yuav tsum siv HTN cov khoom siv LCD kom ntseeg tau tias lawv tuaj yeem tswj xyuas lub kaum sab xis ntawm 60 ° C hauv ib puag ncig ntawm -40 ° C.
2, Dot matrix LCD: Kev Tshawb Fawb Kev Tshawb Fawb hauv Graphics thiab Suav Cov Cim Cim
Dot matrix LCD ua tiav pixel qib zaub los ntawm kev tswj cov ntsiab lus ntawm kev sib tshuam ntawm X kab thiab Y kab ntawm electrodes, uas tuaj yeem muab faib ua ob hom: tus cwj pwm raws li cov duab thiab cov duab raws. Nws qhov txiaj ntsig tseem ceeb nyob hauv kev txhawb nqa cov duab ntawm cov duab, Suav cov cim, thiab cov nkhaus, ua tau raws li qhov xav tau ntawm kev xav tau ntawm cov ntaub ntawv muaj zog.
Cim raws li dot matrix LCD
Siv cov cim ruaj khov xws li 16 × 2 thiab 20 × 4, txhua tus cim yog tsim los ntawm 5 × 7 lossis 5 × 8 pixels, tsim nyog rau kev nthuav tawm cov ntaub ntawv cov ntaub ntawv ruaj khov. Piv txwv li, ib co txawv teb chaws multifunctional zog ntsuas siv cov cim raws li dot matrix LCD, uas muaj peev xwm synchronously tso saib lus Askiv tsis xws li "Tag nrho kWh" thiab "Peak kWh", tab sis cov zaub ntawm Suav cim cia siab rau ib tug cim tsev qiv ntawv nti, uas yog kim thiab muaj ib tug ntev txoj kev loj hlob voj voog.
Graph raws li dot matrix LCD
Kev kos duab dawb yog ua tiav los ntawm kev tswj hwm tag nrho pixel, txhawb kev daws teeb meem xws li 128 × 64 thiab 320 × 240, thiab tau siv dav hauv siab - kawg lub zog ntsuas thiab lub zog saib xyuas cov khoom siv. Piv txwv li, lub ntsuas hluav taws xob LCD tau txais 3.5-inch graphic LCD, uas tuaj yeem kos lub sijhawm voltage thiab tam sim no waveform curves, lub zog daim duab peb sab, thiab cov duab sib xyaw ua ke, thiab xa cov ntaub ntawv mus rau lub zog tswj hwm los ntawm RS485 interface. Hom LCD no tseem txhawb nqa ntau theem kev qhia zaub mov, thiab cov neeg siv tuaj yeem teeb tsa, nug cov ntaub ntawv xwm txheej, thiab xa cov ntaub ntawv tshaj tawm los ntawm kev ua haujlwm kov lossis khawm.
Kev sib tw: Lub zog noj ntawm dot matrix LCD (kwv yees li 5mA) yog qhov siab dua li ntawm segmented screen (kwv yees 0.1mA), thiab lub zog siv hluav taws xob yuav tsum tau ua kom zoo dua los ntawm kev ua kom rov qab zoo dua thiab kev tswj lub teeb. Piv txwv li, ib qho qauv ntawm peb-theem zog ntsuas hluav taws xob siv lub teeb pom kev zoo kom hloov kho lub teeb ci ntsa iab, txo lub zog siv los ntawm 30% hauv qhov chaw tsis muaj teeb pom kev zoo. Nyob rau tib lub sijhawm, 1/2 txoj kev tsis ncaj ncees yog siv los txo qhov kev hloov pauv ntawm qhov tsis kaj siab thiab txhim kho cov duab pom tseeb.
3, Taw tes ntu kev sib xyaw LCD: lub fusion tshiab ntawm kev sib cuam tshuam thiab cov ntaub ntawv ceev
Cov dot ntu kev sib xyaw LCD sib xyaw ua ke qhov zoo ntawm ntu code thiab dot matrix thev naus laus zis, thiab ua tiav cov khoom sib xyaw ntawm cov lej, cov cim, thiab cov duab los ntawm kev tswj hwm cheeb tsam, dhau los ua tus neeg nqa khoom tseem ceeb rau kev sib tham sib hloov kho ntawm cov ntsuas hluav taws xob ntse. Nws cov xwm txheej thov siv xws li:
Ntau tus nqi hluav taws xob meter
Siv segment code cheeb tsam los tso saib cov nqi roj teeb, thiab dot matrix cheeb tsam los tso saib lub sij hawm tus nqi, xub cim, thiab xwm txheej icon. Piv txwv li, ib qho qauv ntawm ib qho -theem ntse meter teeb tsa ib ntu code cheeb tsam nyob rau sab saum toj ntawm LCD kom pom tag nrho lub zog tam sim no hauv lub sijhawm; Lub hauv paus dot matrix cheeb tsam qhia lub "Peak", "Tsev", thiab "Valley" lub sij hawm cim nyob rau hauv ib tug cyclic yam; Hauv qab, cov cim yog siv los qhia txog roj teeb undervoltage, thim rov qab theem ib ntus, thiab lwm lub xeev txhaum.
IoT hluav taws xob ntsuas hluav taws xob
Lub ntsuas hluav taws xob hluav taws xob ua ke nrog 4G / WIFI / LORA kev sib txuas lus modules, uas ua rau pom cov ntaub ntawv hauv zos thiab cov lus qhia txog kev tswj chaw taws teeb los ntawm cov ntsiab lus ntu ntu LCD. Piv txwv li, ib qho qauv ntawm cov ntsuas hluav taws xob tsis muaj hluav taws xob siv 2.8-nti LCD, nrog qhov ntsuas hluav taws xob thiab cov txiaj ntsig tam sim no tau tshwm sim nyob rau sab laug ntu code cheeb tsam, thiab teeb liab lub zog, kev sib txuas lus, thiab cov ntaub ntawv prompts thawb los ntawm huab platform pom nyob rau hauv txoj cai dot matrix cheeb tsam; Cov neeg siv tuaj yeem ua kom rov pib dua lub cuab yeej, cov ntaub ntawv rov pib dua, thiab lwm yam haujlwm los ntawm cov khawm kov, thiab LCD qhia cov txiaj ntsig kev ua haujlwm synchronously.
Demand teb terminal
Lub zog ntsuas hluav taws xob rau cov neeg siv khoom lag luam xav tau los txhawb kev ua haujlwm siab tshaj xws li lub sijhawm siv tus nqi thiab kev tswj hwm, thiab nws lub LCD yuav tsum tso saib cov ntaub ntawv tiag tiag - lub sijhawm, cov ntaub ntawv keeb kwm, thiab cov lus qhia tswj ib txhij. Piv txwv li, ib qho qauv ntawm peb -theem fais fab regulator siv 3.5-nti dot ntu integrated LCD, nrog rau ntu ntu ntu code cheeb tsam qhia txog lub zog tam sim no thiab lub zog muaj zog; Kos ib 24-teev load nkhaus nyob rau hauv nruab nrab lattice cheeb tsam; Qhov qis dua qhia txog cov xwm txheej ntawm kev xav tau ntau dhau thiab cov nyiaj them tus nqi capacitor los ntawm cov cim, thiab txhawb nqa kev hloov pauv ntawm cov txhab nyiaj capacitor los ntawm cov nyees khawm.
