基于TIC6201 DSP的车牌识别卡硬件设计与实现  

Hardware Design and Implementation for a LPR Card Based on TI C6201 DSP Processor

作　　者：谭勇[1] 朱斌[1] 

机构地区：[1]重庆长江师范学院光电技术重点实验室,重庆涪陵408003

出　　处：《绵阳师范学院学报》2009年第2期33-36,共4页Journal of Mianyang Teachers＇ College

摘　　要：在交通收费和路口监控等车牌识别应用中,纯粹依靠PC机通常难以达到实时性,应用受到了限制,在将DSP引入到车牌识别应用系统后,此问题可得到较好解决。本DSP系统以TI C6201 DSP处理器为核心,配置SAA7111A视频解码芯片SAA7111A作为图像输入通道,使用PCI2040实现了DSP以PCI接口方式与PC的通信。在此系统中,DSP运行识别算法,然后将识别结果通过PCI接口传输给PC供PC进行显示和管理。整个系统计算分布合理,实时性强,极大提高了实用性。The application of LPR in traffic charging and transportation monitoring always fails to work under real time requirement which produces much constraint for further utilization. This problem can be improved by uti- lizing DSP processors. TI C6201 DSP processor can be used as the heart of the system and a video eodec chip - SAA7111A as the forward channel for image input. Besides, PCI2040 functioning as a PCI interface carries on the communication between DSP and PC. In the system, C6201 takes the job of LPR and transmits the result to PC for display and further data management. Thus the system becomes much more practical with balanced computation distribution and the satisfaction of real time functioning.

关 键 词：车牌识别 TMS320C620 PCI2040 WDM驱动 

分 类 号：TP331[自动化与计算机技术—计算机系统结构]