摘要
设计了一种基于数字摄像头OV7620的智能车控制系统,以STM32微处理器为控制核心。利用数字摄像头获取道路信息,为了节约CPU的资源启用了主控制器的DMA功能。本文详细阐述了图像去噪、滤波中线提取的方法;同时采用直流无刷电机作为动力电机,利用速度电流双闭环控制;系统还加装了超声波避障传感器用于道路障碍的探测。经过实际测试证明该智能控制车系统具有很好的自主性,能够很好的模拟实际车辆驾驶模式。
This paper designed a smart car control system based on the digital camera OV7620,and STM32 as a control core using digital cameras to obtain road information.To save CPU resources,it enabled DMA function of the host controller.Further,this chapter describes the method of image filtering,image denoising and center line extraction.DC Brushless motor power motor with speed and current double closed-loop control was used.System equipped with a ultrasonic obstacle avoidance sensor for detection of road barriers.Practical tests show that the intelligent control system has a good autonomy,and can be a good simulation of actual driving pattern.
作者
薛蕊
曾实现
宋森森
Xue Rui;Zeng Shixian;Song Sensen(Qingdao Huanghai University,Qingdao Shandong,266427)
出处
《电子测试》
2020年第21期20-22,共3页
Electronic Test
关键词
数字摄像头
图像处理
智能车
闭环控制
digital camera
image processing
smart car
closed-loop control
