基于图像处理和DSP的交通灯实时智能控制系统研究-《郑州大学学报(工学版)》

文章信息/Info

Title:: Research on real-time intelligent control system of traffic lights based on image processing and DSP

Keywords:: DSP embedded system; image processing; traffic lights; Real-time intelligent control

摘要:: 针对道路交叉口各通行方向出现车辆分布不均的场合,例如在城市郊区或主干道和非主干道的交叉口,提出一种以DSP嵌入式系统为硬件平台的交通信号灯智能化控制系统设计方案.该系统用CCD摄像机采集反映道路交通现场情况的视频图像,然后对获取的视频图像进行一系列的处理,并用背景减除法来快速获得道路交叉口各相位的车辆信息,然后根据各相对相位车辆多少的不同来实时地控制相应红绿灯的时间和变化,以实现交通管制信号灯的自适应控制.试验证明该系统具有实时性好,扩充灵活等特点.

Abstract:: Aiming at the uneven distribution of vehicles in each traffic direction of road intersection, such as in the suburbs of the city or the intersection of main roads and non-main roads, a design scheme of intelligent control system of traffic lights with DSP embedded system as the hardware platform is proposed. The system uses CCD cameras to collect video images reflecting the road traffic scene, and then performs a series of processing on the obtained video images, and uses background subtraction to quickly obtain the vehicle information of each phase of the road intersection, and then controls the time and change of the corresponding traffic lights in real time according to the number of vehicles in each relative phase, so as to realize the adaptive control of traffic control signal lights. The test proves that the system has the characteristics of good real-time performance and flexible expansion.