基于以太网接口的等效器设计与实现

Design and Implementation of Equivalent Device Based on Ethernet Interface

摘要:

为了配合火箭、导弹等大型设备在试射试飞前的一系列前期测试实验,以确定各项参数是否符合要求,设计了一种用来模拟飞行设备上各种参数信号的等效器；等效器系统通过以太网接口接收上位机命令,下发至各个功能板产生所需的模拟信号和数字信号,而且可以采集测试系统反馈回来的8位模拟信号；该系统采用模块化设计,便于维护且功能稳定,采用FPGA作为各个板卡的核心控制芯片,其并行工作方式及丰富的IO口资源可以缩短开发周期,且方便升级维护,该系统已成功应用于某国防项目。

Abstract:

To cope with rockets, missiles and other large equipment in a series of preliminary experiments to test before flight tests to determine the parameters to meet the requirements, designed a device to simulate flight on various parameters of the signal equivalent device. PC equivalent system receives commands issued to each functional board to produce the desired analog and digital signals via Ethernet interface, and can capture test system fed back eight analog signals. The system is modular in design, easy to maintain and is stable, as each board using FPGA core control chip, which works in parallel IO port and rich resource can shorten the development cycle, and easy upgrade and maintenance, the system has been successfully applied a defense project.