基于飞思卡尔单片机的汽车倒车雷达系统的设计  

The design of automobile reversing radar system based on freescale MCU

作　　者：王维斌 WANG Wei-bin(School of Vehicle Engineering,Hunan Automotive Engineering Vocational College,Zhuzhou 412001,China)

机构地区：[1]湖南汽车工程职业学院车辆工程学院,湖南株洲412001

出　　处：《电子设计工程》2019年第9期140-144,共5页Electronic Design Engineering

摘　　要：倒车雷达是汽车上普遍采用的一种倒车辅助装置,在倒车时能够帮助驾驶人员进行障碍物的判断,以防止发生安全事故。文中介绍了一种以飞思卡尔8位汽车级MC9S08DZ60单片机为主控芯片的倒车雷达系统的设计方法,给出了单片机最小系统电路、倒车雷达电路和信号处理电路、CAN总线通信电路,以及主要控制程序的设计方法。由于设计中采用汽车专用控制器+CAN总线的控制方式,提高了控制系统的可靠性和智能化程度,可以直接在汽车上进行应用,具有一定的研究与实用价值。Reversing radar is a kind of reversing auxiliary device commonly used in automobile. It can help drivers to judge the obstacles when reversing,so as to prevent accidents. In this article,it is introduced that one design method of the reverse vehicle radar system based on the 8 bit MC9 S08 DZ60 MCU of Freescale. It gives the design method of the minimum system circuit,signal processing circuit,power supply circuit,CAN bus communication circuit,main control programand so on. The controller +CAN bus is adopted in the design to improve the reliability and intelligence of the control system.It can be applied directly to the automobile. Therefore,it has a certain research and practical value.

关 键 词：单片机 倒车雷达 信号处理 CAN总线 

分 类 号：TN919.3[电子电信—通信与信息系统]