基于can总线的倒车雷达系统

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1、2009InternationalConferenceonIndustrialMechatronicsandAutomationReversingRadarSystemBasedonCANBusXiaoChenDepartmentofElectronicInformationEngineeringNanjingUniversityofInformationScienceandTechnologyNanjing210044,Chinarainofsun@netease.comAbstract—Toreducethetra

2、fficaccidentswhenbackingandtosolvetheproblemofdataexchangeofnumerouscontrolparking,wedevelopasortofvehiclereversesensoralarmingandtestinginstrumentsinmodernauto[10,11].BecauseitsystembasedontheCANbus.Thesystemcanbedividedintoadoptedthetechnologiessuchasshortfram

3、edatastructuretherangeacquisitionmodule,thesystemcontrolmodule,theandnon-destructivebusarbitration,itpossessedmanybusnodecontrollerandthedisplayalarmmodule.Therangecharacteristicssuchashighreliabilityandstrongtimeliness.acquisitionsubsystemadoptstheultrasonictec

4、hnologytoBasedonCANbus,thesystemcombineswithsinglemeasurethedistancebetweenthevehicleandtheobstaclerealtime.ThesystemcontrolmoduletakesP89V51RD2singlechipmicrocomputertechnology,rangeacquisitionchipmicrocomputerasthemainprocessingunittocontrolthetechnologyandsen

5、sortechnology,transmitsthealarmrealrunningofthewholesystemandcontrolvariousinterfacetimeaccordingtothedistancebetweentheautoandthecircuits.Thereversesensorsystemconnectswiththeautoobstacle,andimplementsgradealarmaccordingtothedigitizationplatformthroughtheCANbus

6、,andrealizesthedistance.Thereversesensorsystemconnectswiththeautoautomaticself-correctionofthedetectingsystemaccordingtodigitizationplatformthroughtheCANbus,andrealizesthethedatasharing.Thesystemcaneliminatethepuzzleinducedautomaticself-correctionofthedetectings

7、ystemaccordingbytheparkingandstarting,enhancethesecurityofthetothedatasharing.Thesystemisconvenienttobedriving,reducethetrafficaccidentsanddecreasetheextendedinthemarket.manufacturingcost.Thesystemisconvenienttobeextendedinthemarket.II.SYSTEMDESIGNKeywords-Rever

8、singradar;CANBus;ultrasound;vehicleThesystemistheautoreservesensoralarmsystemelectronics;P89V51RD2basedonCANbus.Thefrontsensorandtherearsensoroftheautoareindependente