摘要
无线电罗盘导航信号模拟器是用于无线电罗盘测试和检修的必备仪器。结合工程实际介绍了导航信号模拟器中控制软件的开发,其中LabVIEW设计的用户界面(UI)负责处理输入数据,界面设计采用事件触发方式,实现了分层操作,使得界面简洁、布局匀称;以太网用于实现用户界面和下位机之间的数据收发,通过设计2个动态链接库(DLL)实现设计要求,一个用于建立以太网数据传输通道;另一个用于按照自定义的帧格式将用户原始数据封装成帧,利用NiosII控制W5300接收以太网数据。测试结果表明,系统预期功能全部实现,系统工作稳定、可靠。
Navigation signals simulator for automatic direction finder （ADF） is necessary for its test and maintenance. Considering the practice of engineering, this paper introduces development of navigation signals simulator control software. LabVIEW handles the user interface（UI） of the input data, interface design using event-triggered mode to achieve a layered operation, making the interface is simple and symmetrical layout. Ethernet implements data transmission between the user interface and the lower machine with two DDLs （dynamic link library）, one for establishing Ethernet data transmission channel and another for a custom frame format. Nios II controls W5300 receiving Ethernet data. Test results show that the intended function fully realized,the system is stable and reliable.
出处
《电子测量技术》
2013年第9期89-93,共5页
Electronic Measurement Technology
