Udonga olushibhile olungabiziwe lubekwe e-ultrasonic open Channel flowmeter

Udonga olushibhile olungabiziwe lubekwe e-ultrasonic open Channel flowmeter

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Xhumana Nanje

Incazelo yomkhiqizo

Izimfanelo Zomkhiqizo

Ukupakisha nokulethwa

Incazelo yomkhiqizo

Izimfanelo Zomkhiqizo

Ibhulogi: Bai chuang

Ukupakisha nokulethwa

Ukuthengisa Amayunithi

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I-Ultrasonic Open Channel Flowmeter

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Incazelo yomkhiqizo

Imininingwane yephutha lokuxhumana kanye nokucutshungulwa kwedatha:
Umgcini noma inceku ingasebenzisa ikhodi yokuhlola ukuthola ukuthi imininingwane etholakele ilungile yini. Ngenxa yomsindo we-elekthronikhi noma okunye ukuphazamiseka, kwesinye isikhathi amaphutha ezenzeka ngesikhathi sokudluliselwa kolwazi. Ikhodi yokuhlola iphutha (CRC) ingabheka ukuthi ngabe ulwazi lomgcini noma lwesigqila ngesikhathi senqubo yokuhambisa idatha alulungile, futhi idatha eyiphutha ingalahlwa (noma ngabe iyakuthumela noma yamukela ukuphepha nokusebenza kahle kwe uhlelo.
I-CRC (ikhodi ye-cyclic engaphenduki) yephrothokholi yokuxhumana ye-modus iqukethe ama-2 byte, okuyinombolo kanambambili eyi-16. Ikhodi ye-CRC ibalwa yidivayisi yokuthumela (umgcini) futhi ibekwe ekugcineni kohlaka lwemininingwane ethunyelwe. Idivaysi (inceku) ethola imininingwane iphinda yathola i-CRC yolwazi olutholakele futhi iqhathanisa noma ngabe i-CRC ebaliwe ifana neyamukelwe. Uma bobabili bengafani, kwenzeka iphutha.
Kusetshenziswa amabhithi wedatha ayi-8 kuphela lapho wenza ukubalwa kwe-CRC. I-Start Bit, ukumisa kancane kanye ne-parity bit akubandakanyeki ekubalweni kwe-CRC.

Lapho imitha ye-Liquid Level ithola iphutha ngaphandle kwephutha lekhodi ye-CRC, kufanele ithumele imininingwane emuva kumgcini. Isikhundla esiphakeme kakhulu sekhodi yokusebenza ngu-1, okungukuthi, ikhodi yokusebenza ebuyiselwe kwinceku ku-Host Code yikhodi yokusebenza ethunyelwe yi-Host Plus 128. Amakhodi alandelayo akhombisa ukuthi kwenzeke iphutha elingalindelekile.
Uma imininingwane etholwe yisigqila esivela kwi-Master iqukethe amaphutha e-CRC, ngeke inganakwa yinceku.
Ifomethi yekhodi yephutha ebuyiselwe isigqila yile elandelayo (ngaphandle kwekhodi ye-CRC):
Ikhodi yekheli: 1 Byte
Ikhodi yomsebenzi: 1 Byte (okuphezulu kakhulu kungu-1)
Ikhodi yephutha: 1 Byte
Ikhodi ye-CRC: ama-byte ama-2.

Umshini wenceku uphendula ngekhodi yephutha elandelayo:
81. Ikhodi yomsebenzi ongekho emthethweni.
Ikhodi yomsebenzi etholakele ayisekelwa yithebula lenceku.
82. Funda ikheli ledatha engekho emthethweni.
Indawo ecacisiwe yedatha ingaphandle kohlu lwamakheli olufundekayo lwethebula lenceku.
83. Inani ledatha elingekho emthethweni.

Inani ledatha elithunyelwe yi-Master etholakele lidlula uhla lwedatha yekheli elihambisanayo lesigqila.

Imikhiqizo esemqoka yenkampani yethu ifaka i-electromagnetic flowmeter, ukubanda okubandayo noma okushisa kwe-ultrasonic, i-flowmeter yesiteshi esivulekile, ukubanda kwamakhaza we-electromagnetic noma i-flowmeter.