基于达芬奇平台的电子警察系统的研究与开发

发布时间：2019-01-28 08:37

【摘要】：随着社会经济的发展、汽车数量急剧增加,对交通控制、安全管理的要求也日益提高,运用电子信息技术实现安全、高效的智能交通成为交通管理的主要发展方向。在国内,对于道路上的通过车辆的视频检测技术还处在一个刚刚起步的阶段,和实际应用还有相当一段距离。关于视频检测的理论算法并不少见,而如何选择和使用一个合适的技术平台来发挥算法的作用,如何对实际应用情况有针对性的进行处理则显得非常有意义。本文则对这方面工作进行深入研究。本文的主要内容是研究如何在达芬奇平台TMS320DM6467上实现车牌定位与车牌识别算法的移植和优化,以及如何利用达芬奇平台构建一个能满足电子警察要求的嵌入式系统。本文介绍了几种不同的车辆检测手段,简要分析了基于视频处理方法的优越性。并系统的研究了达芬奇平台的特点和优势。详述了高清电子警察的总体方案设计。分别以硬件和软件两个角度来介绍该方案的技术实现。本文的关键技术在于算法的DSP移植、优化以及嵌入式应用设计。该课题是一个多人协作的大课题,其中以图像处理算法为最核心的技术,但这一部分不是本文的重点。本文所关注的是嵌入式系统设计、算法的DSP移植和优化。移植的难点主要体现在双核处理上,换句话说就是如何将ARM的数据源提供给DSP,而DSP的计算结果如何为ARM所用。优化工作的重点是如何有效的利用达芬奇平台的软硬件资源提高整个系统的效率。系统的嵌入式应用设计是本文的另一个重点,其特点是涉及面广、工作量大。我们对优化后的嵌入式系统进行了详细而全面的测试,完全满足实时要求。采用了通用的消息队列机制进行消息的交互,采用ftp机制进行文件数据的交互,提供了可扩充的标准接口。
[Abstract]:With the development of social economy, the number of cars increases sharply, and the requirements of traffic control and safety management are also raised day by day. The use of electronic information technology to achieve safety, efficient intelligent transportation has become the main development direction of traffic management. In China, the video detection technology of passing vehicles on the road is still in its infancy, which is still far away from the practical application. The theoretical algorithm of video detection is not uncommon, and how to select and use a suitable technology platform to play the role of the algorithm, how to deal with the actual application is very meaningful. This article carries on the thorough research to this aspect work. The main content of this paper is to study how to realize the transplantation and optimization of license plate location and license plate recognition algorithm on the TMS320DM6467 of Da Vinci platform, and how to use Da Vinci platform to build an embedded system that can meet the requirements of electronic police. In this paper, several different vehicle detection methods are introduced, and the advantages of video processing are briefly analyzed. The characteristics and advantages of Da Vinci platform are studied systematically. The overall scheme design of high-definition electronic police is described in detail. The technical implementation of the scheme is introduced from the two angles of hardware and software. The key technologies of this paper are DSP migration, optimization and embedded application design. This topic is a multi-person cooperation, in which image processing algorithm is the core technology, but this part is not the focus of this paper. This paper focuses on embedded system design, algorithm DSP porting and optimization. In other words, how to provide the data source of ARM to DSP, and how to calculate the result of DSP are used by ARM. The emphasis of the optimization work is how to utilize the software and hardware resources of da Vinci platform effectively to improve the efficiency of the whole system. The embedded application design of the system is another important point of this paper, which is characterized by its wide range and heavy workload. The optimized embedded system has been tested in detail and in a comprehensive way, which fully meets the real-time requirements. The general message queue mechanism is used for message interaction, and the ftp mechanism is used for file data interaction, which provides an extensible standard interface.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP391.41;TP368.1

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