基于ZYNQ-7000的超声波信号采集系统设计  

Design of ultrasonic signal acquisition system based on ZYNQ-7000

作　　者：和鹏祥 王黎明[1,2] 李璇 蔺晓煜 武国强[3] 王鸿儒 马文 HE Pengxiang;WANG Liming;LI Xuan;LIN Xiaoyu;WU Guoqiang;WANG Hongru;MA Wen(School of Information and Communication Engineering,North University of China,Shanxi Taiyuan 030051,China;School of Innovation and Entrepreneurship,North University of China,Shanxi Taiyuan 030051,China;Taiyuan Heavy Industry Co.,LTD.,Shanxi Taiyuan 030024,China;Shanxi Taizhong Shuzhi Technology Co.,LTD.,Shanxi Taiyuan 030024,China)

机构地区：[1]中北大学信息与通信工程学院,山西太原030051 [2]中北大学创新创业学院,山西太原030051 [3]太原重工股份有限公司,山西太原030024 [4]山西太重数智科技股份有限公司,山西太原030024

出　　处：《工业仪表与自动化装置》2024年第4期3-6,共4页Industrial Instrumentation & Automation

基　　金：2022年山西省应用基础研究计划项目(202203021212123);省部共建动态测试技术国家重点实验室开放研究基金(2022-SYSJJ-08);山西省重点研发计划“基于环境自适应光学扫描平台的焦炉机车精确定位系统关键技术研究”(202202110401015)。

摘　　要：针对无损检测领域对采集设备低功耗、小型化的要求,在分析现有采集设备的劣势后,基于zynq-7000设计了一个八通道的超声波信号采集系统。在设计中,系统以zynq7020主控系统为核心,FPGA部分负责AD驱动开发;ARM部分主要负责数据的传输以及对整个系统的控制。系统采用采样频率为2 MHz的ADS7946芯片进行模数转换,结合AXI-Stream协议以及千兆以太网接口,实现了采集系统与PC上位机的交互,并且通过对超声波信号现场采集对比实验,证明了该系统实现了对超声波信号的采集、传输、存储以及可视化。Aiming at the requirement of low power consumption and miniaturization of acquisition equipment in the field of non-destructive testing,an eight-channel ultrasonic signal acquisition system based on zynq-7000 is designed after analyzing the disadvantages of existing acquisition equipment.In the design,zynq7020 main control system is the core of the system,and FPGA is responsible for AD driver development.The ARM part is mainly responsible for data transmission and the control of the whole system.The system uses the ADS7946 chip with a sampling frequency of 2 MHz for analog-to-digital conversion,and combines the AXI-Stream protocol and Gigabit Ethernet interface to realize the interaction between the acquisition system and the PC host computer.Moreover,through the field acquisition and comparison experiment of ultrasonic signals,it is proved that the system realizes the acquisition,transmission,storage and visualization of ultrasonic signals.

关 键 词：ZYNQ-7000 超声波信号采集 数据传输 数据存储 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]