基于DM642的桥梁缆索表面缺陷图像采集及传输系统设计  

Image acquisition and transmission system design of the bridge cable surface defect based on DM642

作　　者：周忆[1] 王生治[1] 张军伟[1] 

机构地区：[1]重庆大学机械工程学院,重庆400030

出　　处：《电子技术应用》2010年第1期20-23,共4页Application of Electronic Technique

基　　金：重庆市科委科技计划项目攻关项目(CSTC;2008AC6083)

摘　　要：针对目前国内桥梁缆索表面缺陷检测的不足,提出一种基于DM642的缆索表面缺陷图像采集及传输系统。介绍了该系统的硬件平台以及软件设计。系统的硬件平台主要由3路视频解码芯片SAA7113、可编程逻辑器件(CPLD)、物理层收发器LXT971A以及信号处理器DM642等组成;软件设计主要介绍了系统功能实现流程、图像压缩算法设计等。For the current shortcoming of defect detection of the cable surface, a new type of DM642-based image acquisition of the cable defect and transmission system was presented. The system＇s hardware platform and software design were introduced. The hardware platform of the system were mainly composed of three video decoder chips SAA7113, complex programmable logic device （CPLD）, PHY transceiver LXT971A, signal processor DM642 and so on. Software design introduced the procedure of the realization of systemic function, image compression algorithm design and so on.

关 键 词：缆索表面 缺陷检测 图像采集 信号处理器 可编程逻辑器件 

分 类 号：U446.2[建筑科学—桥梁与隧道工程]