摘要
介绍了一种超声相控阵成像系统软件设计方案。软件基于嵌入式Linux和Qt/Em-bedded开发,采用了模块化的设计思想。重点研究了该软件系统实现的若干关键技术:利用DMA方法实现了成像数据从FPGA到ARM的高效传输;利用Qt的多线程支持实现了计算任务的并行处理,提高了系统的实时性能;利用Qt的文件类库和SQLite数据库支持,实现了探伤系统中的数据管理和维护等等。系统运行正常,符合设计要求。
A software solution for Ultrasonic Phased Array imaging system is presented in this paper. The software system is based on embedded Linux and Qt/Embedded, using modular design. The study of this paper places emphasis on the key technologies of software system. The imaging data transferring from FPGA to ARM is realized by DMA. And we achieved parallel processing of computing by multithreading with Qt, which have improved real-time performance of our system. Besides, all the data and files are managed well by the file class library of Qt and SQLite database, etc. The software system runs well, all performance indexes meet the requirements. Testing results show the design is reasonable and feasible.
出处
《无损检测》
2013年第4期5-9,78,共6页
Nondestructive Testing
关键词
超声相控阵
成像
软件设计
Ultrasonic phased array
Imaging
Software design
