高能X射线工业CT数据传输系统的设计  

Design of data transmission system for high-energy X-ray industrial CT

作　　者：段黎明[1] 廖平 张平[1] 李胜颚[1] 

机构地区：[1]重庆大学ICT研究中心,重庆400044 [2]第二炮兵驻成都地区军事代表室,成都610031

出　　处：《强激光与粒子束》2008年第9期1541-1544,共4页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：针对高能X射线工业CT的特点,开发了基于USB2.0的数据传输系统。该传输系统主要包括USB2.0接口部分和传输控制部分。USB2.0接口部分使用Cypress公司的EZ-USB FX2系列CY7C68013A芯片,配置为从属FIFO接口模式,通过块传输方式将数据传送给上位机。传输控制部分使用Altera公司Cy-clone系列EP1C6Q240C8N芯片,定义缓冲区接收来自探测部分的数据,产生逻辑控制信号和时序信号,发送数据到USB的端点缓冲区。测试表明该传输系统易于扩展,占用系统资源少,传输速率高,满足高能X射线工业CT数据传输的要求。Aiming at the characteristics of high-energy X-ray industrial computerized tomography（CT）, a data transmission system based on USB2.0 was developed. The system consists of a USB2.0 interface and a transmission control unit. The USB2.0 interface unit uses Cypress＇s EZ-USB FX2-CYTC68013A chip, which is set as the slave FIFO interface model to transfer data to host computer by bulk transfer mode. The transmission control unit uses Altera＇s Cyclone- EP1C6Q240C8N chip which defines buffer to receive the data from detecting part, generate logic control signals and timing sequence signals, and send the data to the endpoint buffer of USB. The data transmission system was tested well and can meet the requirements of high-energy X-ray industrial CT. Also it can expand easily and take up a few system resources with high transmission rate.

关 键 词：X射线 工业CT 数据传输 USB FPGA 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置] TP274.51[自动化与计算机技术—控制科学与工程]