Cov txheej txheem:
Video: Cov txheej txheem kho qhov yuam kev yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kev kho yuam kev tuaj yeem ua ob txoj hauv kev: Rov qab kev kho yuam kev : Ib zaug ntawm yuam kev nrhiav pom, tus txais tau thov tus neeg xa khoom rov xa cov ntaub ntawv tag nrho. Tom ntej kev kho yuam kev : Nyob rau hauv cov ntaub ntawv no, tus receiver siv lub yuam kev - kho code uas tau kho cov yuam kev.
Kuj paub, kev kho qhov yuam kev yog dab tsi?
Kev kho yuam kev yog tus txheej txheem ntawm kev txheeb xyuas qhov yuam kev hauv cov lus xa mus thiab rov tsim kho qhov qub yuam kev - cov ntaub ntawv dawb. Kev kho yuam kev xyuas kom meej tias kho thiab yuam kev -cov lus pub dawb tau txais ntawm sab txais.
Ib yam li ntawd, peb txoj kev kuaj xyuas qhov yuam kev yog dab tsi? Qee cov txheej txheem nrov rau kev tshawb nrhiav qhov yuam kev yog:
- Simple Parity check.
- Ob-dimensional Parity check.
- Checksum.
- Cyclic redundancy check.
Tsuas yog li ntawd, hom kev kho qhov yuam kev yog dab tsi?
Muaj peb hom loj ntawm kev kho qhov yuam kev
- Tsis siv neeg rov thov (ARQ)
- Forward kev kho qhov yuam kev.
- Hybrid schemes.
- Yam tsawg kawg nyob deb coding.
- Cov lej rov ua dua.
- Parity khoom.
- Checksums.
- Cyclic redundancy checks (CRCs)
Dab tsi yog qhov txawv ntawm qhov yuam kev?
Feem ntau qhov yuam kev raug faib ua peb hom : systematic yuam kev, random yuam kev thiab blunders. Qhov yuam kev tag nrho yog tshwm sim los ntawm kev ua yuam kev hauv kev siv cov cuab yeej lossis cov ntsuas ntsuas, ntsuas ntsuas thiab sau cov ntaub ntawv tau txais.
Pom zoo:
Dab tsi yog qhov tsis zoo ntawm cov txheej txheem txheej txheem?
Ib qho tsis zoo ntawm kev siv Procedural Programming raws li ib txoj hauv kev programming yog qhov tsis muaj peev xwm rov siv tau cov lej thoob plaws hauv qhov program. Yuav tsum rov sau tib hom code ntau zaus thoob plaws ib qho kev pab cuam tuaj yeem ntxiv rau tus nqi tsim kho thiab lub sijhawm ntawm qhov project. Lwm qhov tsis zoo yog qhov nyuaj ntawm kev kuaj xyuas yuam kev
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Qhov txheej txheem txheej txheem yog dab tsi?
Lub kaw lus tuaj yeem ua modular nyob rau hauv ntau txoj kev. Ib txoj hauv kev yog txheej txheej txheej, uas cov txheej txheem ua haujlwm tau tawg mus rau hauv ntau txheej (qib). Cov txheej hauv qab (txheej 0) id lub kho vajtse; qhov siab tshaj (txheej N) yog tus neeg siv interface. Txoj kev no ua kom yooj yim debugging thiab kev txheeb xyuas qhov system
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Dab tsi ntawm cov hauv qab no yog cov txheej txheem kev tshuaj xyuas cov ntaub ntawv hauv kev tshawb fawb zoo?
Cov txheej txheem kev txheeb xyuas cov ntaub ntawv feem ntau siv yog: Kev tsom xam cov ntsiab lus: Qhov no yog ib txoj hauv kev zoo tshaj plaws los tshuaj xyuas cov ntaub ntawv zoo. Kev txheeb xyuas cov lus piav qhia: Txoj kev no yog siv los txheeb xyuas cov ntsiab lus los ntawm ntau qhov chaw, xws li kev xam phaj ntawm cov neeg teb, kev soj ntsuam los ntawm thaj chaw, lossis kev tshawb fawb