基于现场总线的水环境多参数智能监控系统的研究

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1、江苏大学硕士学位论文基于现场总线的水环境多参数智能监控系统的研究姓名：耿娇申请学位级别：硕士专业：农业电气化与自动化指导教师：刘星桥20090607江苏大学硕士学位论文ABSTRACTWiththedevelopmentofcontrolandmicorcomputertechnology,intelligentinstrumenthasbeenwidelyusedinindusrtialautomation，andplaysamoreandmoreimportantroleinthisarea．Thissubjectisapartofindustri

2、alkeyprojectsinJiangsuProvince．Inviewofthedevelopmentstatusofthecurrentbus．．basedinstrumentathomeandabroad，basedonembeddedmicroprocessors，allbus—basedmulti．parameterintelligentmonitoringsystemisdesignedinthispaper,whichintegratesthefunctionssuchasdetection，analysisandcommunicati

3、onandcanbeusedintheareasoflndustrialaquacultureandwater-qualitydetectionofthewaterenvironment．Themulti‘parametermonitoringsystemdevelopedinthisdissertationCancontinuouslymonitorwaterqualityparameterssuchastemperature,turbiditY,PHandsalinityonline．Thereal-timeparameterscanbetrans

4、mittedtothehostPCthroughRS．．485bus．Consequentlythesystemachievescentralizedmonitorofthefieldenvironment．ThesystemadoptsupperandlOWerstructure．ThelOWercomputeriScomposedbytwoparts，thehardwareandthesofterwarepart．C805lF040iSselectedasthecontrolleronhardware．C8051F040notonlyhasl2．b

5、its8．channelADCO．butalsocollects8-channeIsimulation．SOthenumbersofinstrumentsusedcanbereducedanddevelopmentcostsalSObesaved．ThehardwareoflOWercomputerincludessensor,signaltransformationcircuit，LCDdisplay,PCinterfacecircuitandSOon．Inaddition，thisinstrumenthastheRS-485serialcommun

6、icationinterface．Itcansenditsownstatusandfieldparametestosupervisinghostcomputer．LowercomputersoftwareisdevelopedwiththeC51programminglanguagewhichiseasytounderstand．Anditiscomposedofthedataacquisitionmodules，displaymoduleandcommunicationmodule，etc．Thepaperdevelopsamanagingsoftw

7、arewithVBlanguageonthehostcomputer．Thesoftwarehasfriendlyinterface，convenientopration，completefunction．Itcancompletesdisplayingthereal-timeparametersofthelowercomputer,settingparameters，databaseoperationandcurvedrawing．ThebelowpositionoperatorsysternCanalonebeusedascontrolsyster

8、ntomeetthedemandofsmall．scaleaquacultureproduct