基于TMS320DM642的视频图像处理平台设计与实现

发布时间：2018-08-11 10:17

【摘要】：随着数字图像处理技术的发展,以及现代信息化社会建设的加速,视频图像处理系统在军用领域和民用领域都得到了广泛的应用。尤其近年来,DSP技术的发展不断地将数字图像处理领域的理论研究成果转换到实际应用中去,推动了视频图像处理领域的发展。因此对视频图像处理平台的研究具有重要意义。本文以某武器系统的研制为背景,主要研究了系统的核心组件之一——基于DSP技术的视频图像处理平台。论文对系统功能需求和技术指标进行了详细分析,给出了视频图像处理平台的总体设计方案,并根据方案实现了各个模块的硬件设计、软件驱动设计和调试。根据系统功能需求,视频图像处理平台采用TI公司的TMS320DM642芯片作为核心处理器,视频解码器和编码器分别采用Philips公司的SAA7113H和SAA7121H芯片。论文详细地介绍了硬件平台各个功能模块的设计与实现,同时,系统地介绍了视频图像处理平台的主程序设计,包括DM642初始化、视频编/解码模块、通信模块、CAN模块和CPCI模块等的底层驱动设计。视频图像处理平台采用CAN总线与主机进行数据通信,同时为了解决系统平台在运动过程中振动可能带来的问题,平台采用CPCI接口向主机发送完整的视频流信息,通过CPLD模块的设计对视频图像处理平台进行时序和逻辑控制。论文最后对各个模块进行了软硬件调试,实现了设计目标。论文设计的视频图像处理平台,成功实现了视频图像的采集、传输和显示,并能通过CPCI接口完成对主机的实时图像传输,通过CAN总线与主机的实时信息交互,各个功能模块均能满足总体对视频图像处理平台的设计指标要求。目前本平台正参与全系统的集成和联调,工作状况良好。
[Abstract]:With the development of digital image processing technology and the acceleration of the construction of modern information society, video image processing system has been widely used in military and civil fields. Especially in recent years, the development of DSP technology has continuously transformed the theoretical research results in the field of digital image processing into practical applications, which has promoted the development of video image processing field. Therefore, the research of video image processing platform is of great significance. Based on the research and development of a weapon system, this paper mainly studies the video image processing platform based on DSP technology, which is one of the core components of the system. In this paper, the functional requirements and technical specifications of the system are analyzed in detail, and the overall design scheme of the video image processing platform is given. According to the scheme, the hardware design, software driver design and debugging of each module are realized. According to the functional requirements of the system, the video image processing platform uses TI's TMS320DM642 chip as the core processor, and the video decoder and encoder use Philips's SAA7113H and SAA7121H chips, respectively. This paper introduces the design and implementation of each function module of the hardware platform in detail. At the same time, it systematically introduces the main program design of the video image processing platform, including DM642 initialization, video coding / decoding module. Communication module can module and CPCI module driver design. The video image processing platform uses CAN bus to communicate with the host computer. Meanwhile, in order to solve the problem caused by the vibration of the system platform during the motion, the platform uses the CPCI interface to send the complete video stream information to the host computer. The timing and logic of video image processing platform are controlled by the design of CPLD module. Finally, the software and hardware of each module are debugged and the design goal is realized. The video image processing platform designed in this paper has successfully realized the acquisition, transmission and display of video images, and the real-time image transmission to the host can be completed through the CPCI interface, and the real-time information exchange with the host through the CAN bus. Each functional module can meet the overall design requirements of video image processing platform. At present, the platform is participating in the whole system of integration and coordination, working well.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP391.41;TP368.1

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