基于FPGA的超声波避障系统设计

The design of ultrasonic evadible system based on FPGA

设计了一种新型的汽车入库避障系统.该系统采用超声波测距原理,利用FPGA丰富的查找表结构完成算法.可随时根据实际检测或实验的数据更新查找表,降低系统偏差.采用动态扫描方式将测量结果实时地显示出来,实时检测与障碍物的警戒距离并报警.

A new kind of evadible system has been designed for the car when it goes into garage.The system uses the ultrasonic distance measuring principle and it implements algorithm using the rich lookup table structure of FPGA.It can renew the lookup table as necessary according to the actual examination or the experimental datum,as well as reduce the system deviation.The measuring result can be displayed immediately through dynamic scanning and then the alert distance to the obstacle can be measured and alarmed instantly.