thismonsoon of hotwet rain
climate,most
by region
happens.Affected
forshort localrainstormoften also
summer.Not duration,highstrength
only happens,but
often disaster
rainin而de ofthe duration
range valley诵tl】:long
in ofournation谢nldegrees.Therefore,Perfect
happenslargerange varying hydrological
can real―time inall thecentral
monitoringhelp monitoringhydrologicalregions、^唁th
stationandMake andreasonablemeasuresfora of situationsto
timely varietyunexpected
and the causeddisasters.
disastersreduce
prevent damageby
The usetheAT89C51 asthe witllthe
core,combinednecessary
design peripheral
the with51 MCUasacore.Itconsists
circuits.We hydrologicalmonitoringsystem
chip
design
12V thehardwareadditionto usesSDI一12busto
of DC side,in MCU,It
powersupply.On connect thewaterlevel
multiple byTDC40 SDI一1 converteO
and
sensordataissenttotheMCUPO.TheMCUuseFLASHtostorereal-timedata
ports
thecollectedwaterleveldatatothecentralstation
transport through
as satelliteandSOon.Onthe
the
sensors
.
Collected
2toRS232
channel,suchPSTN,GSM,COMPASSsatellite,maritime
software useC for onthe
side,we MCU,we
languageprogramming.Byprogramming
realize fortheentire data
hydrologicalmonitoringsystem hydrological
and for determineandcontrolandhuman
transportproceduresmonitoringexchange.
an aboutthe and forwardnew
Atthe entire
end,thepapergives summary designputs
andviewsto abeneficialreferencetothe usedto
prospects
,
to
provide
applicationsignal
basedonSDI.12businthefuture.
andtransmission
acquisition,storage
words:MCU、SDI一12、datalevel
Key acquisition、watermonitoring Ⅱ
基于单片机的水情监测系统设计
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