Yuav Ua Li Cas Txheeb Xyuas Qhov Ntsuas ntawm Prepaid Electricity Meter?

Ib lub watt-teev meter them ua ntej tseem hu ua quantitative watt-teev meter, lossis IC card watt-teev meter. Ntxiv rau qhov kev ntsuas kev ua haujlwm ntawm cov ntsuas hluav taws xob zoo tib yam, tshwj xeeb, tus neeg siv yuav hluav taws xob ua ntej thiab tom qab ntawd tuaj yeem siv hluav taws xob tom qab yuav hluav taws xob. Yog li, lub meter them ua ntej saib qhov nyiaj tshuav li cas? Yuav ua li cas nyeem prepaid hluav taws xob ntsuas nyeem ntawv? Ntxig daim npav nrhiav pom lossis lwm daim npav tab sis tsis txhob rub tawm, lub ntsuas hluav taws xob hluav taws xob yuav nkag mus rau hauv lub xeev tsis siv neeg pom (3 vib nas this ntawm cov khoom pom), thiab lub ntsuas hluav taws xob hluav taws xob yuav tso tawm tag nrho cov khoom pom hauv ib ncig. . Hauv qab no, thov saib cov lus qhia ntxaws

Daim card prepaid meter yog dab tsi

Prepaid watt-teev meter tseem hu ua quantitative watt-teev meter, IC card watt-teev meter. Ntxiv nrog rau kev ntsuas kev ua haujlwm ntawm cov ntsuas hluav taws xob zoo tib yam, tshwj xeeb, tus neeg siv yuav hluav taws xob ua ntej, thiab tom qab ntawd tuaj yeem siv hluav taws xob tom qab yuav hluav taws xob.

Cov txheej txheem ua ntej khaws cia rau daim npav ua ntej them nyiaj

Muaj ob txoj hauv kev khaws cia ua ntej, ib qho yog hom code, thiab lwm qhov yog hom ntawv sau. Txoj cai-raws li txoj cai yog kev tswj hwm kev sib txuas cov neeg siv cov ntaub ntawv thiab cov ntaub ntawv yuav khoom hluav taws xob los tsim cov txheej txheem encrypted, uas tau muab xa mus rau tus neeg siv nkag mus rau hauv lub ntsuas hluav taws xob. Daim npav hom ntawv: Sau cov hluav taws xob ua ntej lossis tus nqi rau hauv daim npav hluav taws xob tshwj xeeb (nco), thiab xa mus rau tus neeg siv tuav daim npav hluav taws xob sib txuas lus nrog cov ntsuas hluav taws xob sib txuas, thiab tus nqi ua ntej yuav raug xa mus rau lub ntsuas hluav taws xob.

Yuav ua li cas txheeb xyuas qhov sib npaug ntawm prepaid hluav taws xob ntsuas

Muaj ntau lub tuam txhab ntawm prepaid hluav taws xob ntsuas hauv kuv lub teb chaws, thiab txhua yam khoom muaj nws qhov sib txawv. Koj tuaj yeem saib qhov ntsuas hluav taws xob ua ntej them nyiaj hauv cov hauv qab no:

1. Yog tias lub hwj chim qhib, cov lus piav qhia 'meter' tsis tshwm sim, tab sis siv hluav taws xob. Tom qab ntawd tom qab koj ntxig daim npav, nws yuav qhia lub zog ntxiv.

2. Qee qhov ntsuas hluav taws xob tau muab faib ua tag nrho cov kev siv thiab cov hluav taws xob uas tseem tshuav los tso saib rov qab thiab tawm hauv lem, yog li koj tuaj yeem pom cov xim liab me me nyob rau hauv pem hauv ntej ntawm tag nrho cov kev siv lossis hluav taws xob seem. Qhov twg me ntsis liab dot mus, nws qhia cov hluav taws xob.

3. Qee tus tuaj yeem saib ncaj qha saum toj no, thiab lub vijtsam LCD saum toj no yuav ncaj qha tso rau hauv cov cim: tshuav lub zog npaum li cas.

Yuav ua li cas nyeem cov ntawv nyeem ntawm daim npav them ua ntej meter

Nws feem ntau yog nyob rau hauv lwm lub xeev ntawm kev siv hluav taws xob tag nrho, hluav taws xob seem thiab cov khoom siv hluav taws xob tag nrho (hloov rau 3 vib nas this), thiab muaj cov cim suav suav los qhia ntau lub xeev ntawm cov ntsuas hluav taws xob. Ntxig daim npav kuaj pom lossis lwm daim npav tab sis tsis txhob rub tawm, lub ntsuas hluav taws xob hluav taws xob nkag mus rau hauv lub xeev tsis siv neeg tso saib (lub sijhawm nruab nrab ntawm cov khoom siv yog 3 vib nas this), thiab lub ntsuas hluav taws xob hluav taws xob qhia tag nrho cov khoom tso tawm hauv ib ncig. Cov khoom tso tawm yog raws li nram no: