Kodi GPIB (General Purpose Interface Bus) ndi chiyani?
General Purpose Interface Bus (GPIB), yomwe imadziwikanso kuti Hewlett-Packard Interface Bus (HP-IB), ndi mulingo wolumikizirana. Zimagwirizanitsa zida ndi olamulira, monga makompyuta. Hewlett-Packard adazipanga kumapeto kwa zaka za m'ma 1960. Idadziwika kuti IEEE 488 pambuyo pake.
GPIB imagwiritsidwa ntchito kwambiri poyesa ndi kuyeza. Imalola zida zosiyanasiyana za GPIB kuyankhulana mosavuta. Izi zikuphatikiza ma oscilloscopes, ma jenereta azizindikiro, ndi ma spectrum analyzers.
Imathandizira mpaka zida 15 pamaneti. Izi zimapangitsa GPIB kukhala yothandiza kwambiri mu ma lab posinthana ma data ndi ma automating ntchito.
Muyezo wa GPIB wapangitsa kuti zoyeserera zikhale zophatikizika komanso zodzichitira zokha. Imadziwika chifukwa chodalirika. Izi zimapangitsa kukhala kofunikira m'malo omwe kupeza deta yolondola ndi kuwongolera ndikofunikira.
Mfundo Zaukadaulo
| Kufotokozera | Tsatanetsatane |
| Mtengo Wosamutsa Data | Kufikira 1 MB/s |
| Maximum Zida | 15 |
| Mabasi | 16 (8 data, 8 control) |
| Mtundu Wolumikizira | 24-pini |
| Kukhazikika | IEEE 488.2 |
GPIB Communication Protocol
Makhalidwe amagetsi ndi makina
Makhalidwe amagetsi a GPIB amaonetsetsa kuti mauthenga adutsa bwino. Ili ndi zinthu monga kukana phokoso komanso mtundu wazizindikiro, wofunikira pamakonzedwe antchito. Makhalidwe amakina a GPIB amaphatikiza zolumikizira zolimba ndi zingwe. Izi zimapangidwa kuti zizigwiritsidwa ntchito nthawi zambiri komanso zovuta.
Ma protocol olumikizirana a GPIB amagwiritsa ntchito kusamutsa kwa data kofananira komanso kosalekeza. Kugwirana chanza kwa mawaya atatu a GPIB ndikofunikira pazokambirana zopanda zolakwika. Imagwiritsanso ntchito ASCII pamalamulo ndi data, ndikupangitsa kuti igwire ntchito ndi zida zambiri.
Mitundu yayikulu yolumikizira ya GPIB ndi zolumikizira za 24-pin Amphenol. GPIB pinout imakhazikitsidwa kuti igwire deta ndikulamula bwino. Ili ndi mizere iwiri ya zikhomo za ntchito zosiyanasiyana monga deta ndi nthaka.
Kudziwa za magetsi a GPIB, njira zotumizira deta, ndi mitundu yolumikizira ndikofunikira. Zimathandizira kuonetsetsa kuti zida zimalankhulana modalirika komanso moyenera m'malo osiyanasiyana.
Kusintha kwa System ndi Topology
Kukhazikitsa dongosolo la GPIB kumatanthauza kukonza zida zolumikizirana bwino. Pali mitu iwiri yayikulu: yozungulira kapena yooneka ngati nyenyezi. Pazonse ziwiri, chipangizo chimodzi ndi chowongolera, nthawi zambiri kompyuta, ndipo zina ndi zida.
Wowongolera, kapena wolankhula, amayamba kulankhulana ndikuwongolera deta. Zida, kapena omvera, amachita ntchito ngati miyeso ndikutumizanso deta.
Kusintha kwabwino kwa GPIB kumaganizira zinthu zambiri. Izi zikuphatikizapo maadiresi a chipangizo, kuyimitsa, ndi kupewa kuyatsa kwamagetsi. GPIB topology yosankhidwa imakhudza kutalika kwa unyolo ndi kuchuluka kwa zida. Izi zitha kusintha mitengo kutengerapo deta.
| Mbali | Linear Topology | Topology ya nyenyezi |
| Malo Owongolera | Kuyambira kapena Kumaliza | Central Node |
| Kuwunikira kwa Chizindikiro | Kuthekera Kwapamwamba | Kutsika Kuthekera |
| Kukula | Zochepa ndi Chain Length | Zowonjezereka |
Kupambana kwa kukhazikitsa kwa GPIB kumadalira kukonzekera bwino. Ma hardware ndi mapulogalamu oyenera amaonetsetsa kuti zikuyenda bwino. Izi zimapangitsa kuti zida za GPIB zizigwira ntchito limodzi.
Ubwino wa GPIB
Mawonekedwe a GPIB ndi chisankho chabwino kwambiri padziko lonse lapansi pakuyesa ndi kuyeza. Imadziwika chifukwa cha kudalirika kwa GPIB, chifukwa cha mfundo zokhwima. Izi zikutanthauza kuti zida zimalankhulana modalirika, ndikukupatsani zotsatira zolondola nthawi iliyonse.
Kusinthasintha kwa GPIB kumawala kudzera mu kuthekera kwake kulumikiza zida zambiri zosiyanasiyana mosavuta. Kusinthasintha uku kumakupatsani mwayi wokhazikitsa machitidwe m'njira zambiri, ndikupangitsa kuyesa kukhala kosunthika. Kuphatikiza apo, kugwiritsidwa ntchito kwake m'mafakitale kumawonetsa kuti ndi mulingo womwe aliyense angadalire.
Kugwirizana kwa GPIB ndichinthu chinanso chachikulu. Zimagwira ntchito bwino ndi zida zambiri, ngakhale zakale, zomwe zimawapangitsa kukhala nthawi yayitali. Izi zikutanthauza kuti mumapeza phindu lochulukirapo kuchokera kuukadaulo wanu, ndikukupulumutsirani ndalama pakapita nthawi.
Liwiro la GPIB ndi lachangu, ndikupangitsa kuti ikhale yabwino kusamutsa deta mwachangu. Izi ndi zofunika pamene mukuchita ndi zambiri deta mofulumira. Kuchita kwake kolimba kwa GPIB m'malo ovuta kumapangitsanso kukhala kofunikira kwa ma lab ndi malo oyesera.
GPIB ndiyokondedwa pakati pa akatswiri chifukwa chodalirika, kugwiritsa ntchito mosavuta, komanso kuvomerezedwa kwambiri. Imakwaniritsa miyezo yapamwamba nthawi zonse, zomwe zimapangitsa kuti ambiri azisankha.
Zolepheretsa ndi Zovuta
General Purpose Interface Bus ili ndi malire ake. Cholepheretsa chimodzi chachikulu cha GPIB ndi kukula kwake kwakuthupi. Itha kungolumikiza zida zingapo nthawi imodzi. Izi zimapangitsa kuti zikhale zovuta kukulitsa dongosolo lanu.
Nkhani ina ndi malire a mabasi a GPIB okhala ndi kutalika kwa chingwe. Zingwe zazitali zimatha kusokoneza makonzedwe akuluakulu. Kuphatikiza apo, mapangidwe akale a GPIB ndi ocheperako kuposa mawonekedwe amakono othamanga.
Kukonza zovuta za GPIB ndizovuta. Kupeza ndi kukonza zolakwika kumatenga nthawi yambiri komanso luso. Mapangidwe ovuta a mabasi amachititsa kuti zikhale zovuta kuthetsa mavuto kusiyana ndi zamakono zamakono.
Kuyesa kwa GPIB nakonso kumakhala kovuta. Izi zimapangitsa kupeza ndi kukonza mavuto kukhala pang'onopang'ono. Pamene teknoloji ikupita bwino, kupeza zigawo zogwirizana kumakhala kovuta. Izi zikuwonetsa kuti tikufuna njira zatsopano kapena njira zopitira patsogolo.
Njira Zamakono za GPIB
Tekinoloje ikupitabe patsogolo, kubweretsa njira zatsopano zosinthira GPIB. USB ndichisankho chapamwamba chifukwa chosavuta komanso chosavuta kugwiritsa ntchito. GPIB USB converters kukhala kosavuta kulumikiza machitidwe akale ndi zipangizo zatsopano, kupereka mofulumira kusamutsa deta.
Kusintha kwina kwakukulu ndi mayankho a Ethernet. GPIB Ethernet imalola ogwiritsa ntchito kulumikiza zida pamanetiweki, kupangitsa kuti zikhale zosavuta kufikira zida zakutali. Izi ndi zabwino kwa makhazikitsidwe akufunika kutali ndi kusamutsa deta mofulumira. GPIB to Ethernet converters amathandiza kulumikiza machitidwe akale ku maukonde amakono.
PXI (PCI eXtensions for Instrumentation) nayonso ikukula. Imadziwika ndi mapangidwe ake osinthika komanso magwiridwe antchito apamwamba. Tekinoloje iyi ndiyabwino pamapulogalamu omwe amafunikira kusanja mwachangu komanso kusanthula deta. Zikuwonetsa kufunikira kosunga machitidwe kuti aziyenda bwino mukamagwiritsa ntchito zida zamakono.
| Zamakono | Ubwino wake | Gwiritsani Ntchito Milandu |
| GPIB USB | Kuphatikiza kosavuta, kuthamanga kwambiri | Kukhazikitsa kwa labu, zida zoyeserera zonyamula |
| GPIB Ethernet | Kulumikizana kwa netiweki, kufikira kwakukulu | Kuwunika kwakutali, machitidwe ogawidwa |
| PXI | Modular, magwiridwe antchito apamwamba | Kuyesa kovutirapo, kupeza mwachangu deta |
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