全数字B超诊断仪USB2.0通信接口模块的开发

发布时间：2018-01-03 20:19

本文关键词：全数字B超诊断仪USB2.0通信接口模块的开发　出处：《浙江工业大学》2012年硕士论文　论文类型：学位论文

【摘要】：全数字B超诊断仪是一种以超声成像技术为核心的诊断设备，作为一种无疼痛、无损伤、方便、直观的有效检查手段，它被广泛应用于各医疗机构的临床检查中。随着计算机技术的快速发展及其在超声诊断领域中的应用，超声诊断技术和计算机技术正越来越紧密的结合在一起，而用来连接B超和通用PC机的就是系统的通信接口模块。在众多总线技术中，USB2.0总线以其低成本、高速性、占用体积小等优点为架构该通信接口提供了一个不错的选择。本文首先概述了B超诊断的应用特点及其发展趋势，阐述并比较了当前B超诊断系统的几种通信接口总线技术，指出USB2.0总线的技术优势和发展前景。其次，介绍了一下B超诊断仪的工作原理以及基本系统架构，对USB2.0标准的体系结构、特点等做了基础的分析研究，并对USB2.0标准的设备描述符、请求命令、数据传输机制做了重点研究。在此基础上，利用Cypress公司的CY7C68013AUSB主控芯片实现了系统通信接口的硬件电路。本文的重点是B超诊断系统USB2.0接口的软件设计，包括芯片的固件程序开发、接口设备的Windows驱动程序开发、PC机和CY7C68013A的通信程序设计以及PC机的图像解析测试程序设计。其中，芯片固件程序和Windows驱动程序主要是在Cypress公司提供的固件程序框架以及通用驱动程序之上修改开发而来；在设备通信程序中，实现了超声图像数据的批量读以及参数的批量写；在图像解析测试程序中，实现了图像数据的存储、解析以及显示。最后，，本文对系统的USB2.0接口从接口连通性、传输速度、数据传输错误率等几个方面进行了一系列测试。测试结果证明，本USB2.0接口完全能够满足B超诊断系统对通信接口的设备性能需求。
[Abstract]:All digital B ultrasonic diagnostic instrument is a kind of diagnostic equipment with ultrasonic imaging technology as the core, as a painless, non-injury-free, convenient, intuitive and effective means of inspection. With the rapid development of computer technology and its application in the field of ultrasonic diagnosis, ultrasonic diagnosis technology and computer technology are more and more closely combined. The communication interface module of the system is used to connect B ultrasonic and general PC. Among the many bus technologies, USB2.0 bus has low cost and high speed. The advantages of small size provide a good choice for the architecture of the communication interface. In this paper, the application characteristics and development trend of B ultrasonic diagnosis are summarized, and several communication interface bus technologies of current B ultrasonic diagnosis system are described and compared. The technical advantages and development prospects of USB2.0 bus are pointed out. Secondly, this paper introduces the working principle and basic system architecture of B-ultrasound diagnostic instrument, and makes a basic analysis and research on the architecture and characteristics of USB2.0 standard. And the USB2.0 standard device descriptor, request command, data transmission mechanism has done the key research. On this basis. The hardware circuit of the communication interface of the system is realized by using the CY7C68013AUSB master control chip of Cypress Company. The emphasis of this paper is the software design of USB2.0 interface of B-mode ultrasonic diagnosis system, including firmware development of chip and Windows driver of interface device. PC and CY7C68013A communication program design and PC image analysis test program design. The chip firmware and Windows driver are mainly developed on the basis of the firmware framework provided by Cypress and the universal driver. In the equipment communication program, the ultrasonic image data is read in batches and the parameters are written in batches. In the image analysis test program, the image data storage, analysis and display. Finally, the USB2.0 interface of the system is tested in several aspects, such as interface connectivity, transmission speed, data transmission error rate and so on. The USB2.0 interface can fully meet the equipment performance requirements of B ultrasonic diagnosis system for communication interface.
【学位授予单位】：浙江工业大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH776;TP334.7

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