2、。关键词单片机防撞报警汽车IVAbstractBrieflyexplaintheauxiliaryreversingcollisionavoidance.system is auto reverseanti-collision alarm. Clockisasimplereverseassistdevice. Bytheultrasonic sensorsto prejudge thepositionoftheobstacle tohelp driversparking, liftingthe vehicledriver inreversing anymenace
3、fromthe"rear" improves drivingsafety. Thispaperintroducesthe functionandcharacteristicofAT89C51 MCUchipmicrocomputer, madea kindoflowcost, highprecision, accurate displayofthe automobileanti-collision alarmdevice withAT89C51MCUchipas importantcomponents. Use the anticollisionalarm chi
4、pto real-timeobservation and dataprocessingfunction, distancefunction andultrasonicsensor fusion, distance carrear obstaclesand accuratedetectionof car parking thecar,through thedisplaydevicetodisplaythe obstacledistance, and abuzzeris accordingto thedistancebetweenthevehicleandobstac