CAN总线与RS422A通信适配器的设计与实现及抗干扰(3)

发布时间:2021-06-08

can总线

哈尔滨丁程大学硕十学何论文

Abstract

ThispaperismainlythedesignandrealizationoftheCANbusandon

RS-422correspondenceadapterinlightofhardwareandsoftware.

Firstly,itgivesbriefintroductiontothefieldbustechnology

work,and

systemanditsrelatednavigationanaccountoftheapplicationofCANbusintheoncomplexonawarship.Secondly,itdiscourses

andfocusesonthebasicprincipleandconceptofCANbustechnologythehierarchyoftheCANbus,theframe

oftheCABbushardware.Onstructureandanti-jamminganalysisandmeasures

thisbasis,itproposestheoveralldesignofthesystem.

Inthehardwaredesign,theadoptionofAT89C52serves

fortheasthemicroprocessorintelligentnodesoftheCANbussystem.IntheinterfaceofCANbuscorrespondence,theadoption

PHILIPSSelVesquaoftheCMOSchipsofSJAl000andTJAl050ofoftheindependentcorrespondencecontrollerCAN

tobus.TheTTL.anddesignoftheperipherycircuitrealizesthetransformationfromRS-422

theinterconnectionofSCM埘mcontroller(SJAl000)andtransceiver(TJAl050)ofCAN.Thesoftwaredesignincludes:compilingClanguageprogramofSCM,compilingsol,rareforCANcorrespondenceandformonitoringbusandapplyingDelphitothedevelopmentofuserinterface(uI).

Lastly,inthepracticalapplication,especiallyintheunfavorablyoperationalenvironmentandinthe

ascaseofseverelyjamming,thepaperexplorestheissuessuchabilityofthehowtoimproveanti-jammingCANbus,howforthesystemtooperatemorereliably.FromtheangleoftransmissiontheoryofCANbus,、jl,imthemethodofmeteringthewaveconfigurationofCANbus,itanalysesthefactorseffectingreliableCANtransmissionandputsforwardsomepropositionsandmeaasuresaboutanti-jamminghardwareandsoftwareintheapplicationofCANbus.Keywords:CANbus;RS-422;anti-jamming;SJAl000;Delphi

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