基于FPGA的飞机轮速采集系统设计  

Aircraft Wheel Speed Acquisition System Based on FPGA

作　　者：安书董 李明[1] 康晓东[1] AN Shu-dong;LI Ming;KANG Xiao-dong(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710000,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710000

出　　处：《航空计算技术》2022年第1期101-103,107,共4页Aeronautical Computing Technique

基　　金：航空科学基金项目资助(20121931002)。

摘　　要：介绍一种具有自激励功能的飞机轮速采集系统,采用可编程逻辑实现轮速的采集和激励产生,并提供软件接口以便上位机进行适应性配置。系统区别于传统的轮速采集,将多个轮速信号集成于FPGA架构下,减少了主处理器与接口之间的通信,达到高速实时获取的效果。同时,具有自激励的功能,可以进行自检并将结果上报,提高系统的稳定性和可靠性。An aircraft wheel speed acquisition system with self stimulation function based on FPGA is introduced in this paper.The programmable logic is used to acquire the wheel speed and generate the self stimulation.In order to configure the system by software,the interface of register is reversed by FPGA.Distinguish from other strategy,this system has higher real time performance.Simultaneity,the method introduced in this paper can reduce the communications between CPU and circuits.The self stimulation function is designed in this system,by generating the self stimulation signal,the status of system can be obtained by CPU.Accordingly,the reliability and system stability of wheel speed acquisition system is advanced.

关 键 词：轮速采集 轮速传感器 自激励 频率计数 

分 类 号：TN911.8[电子电信—通信与信息系统] TN702[电子电信—信息与通信工程]