基于DSP的滑油在线屑末监测器软件设计  

Software Design of Online Debris Monitoring Based on DSP

作　　者：马静 张宏祥 李梅[3] MA Jing;ZHANG Hong-xiang;LI Mei(AVIC Beijing Changcheng Aeronautic Measurement and Control Technology Research Institute,Beijing 101111,China;Aviation Key Laboratory of Science and Technology on Special Condition Monitoring Sensor Technology,Beijing 101111,China;Unit 95855 of the PLA,Beijing 103600,China)

机构地区：[1]航空工业北京长城航空测控技术研究所,北京101111 [2]状态监测特种传感技术航空科技重点实验室,北京101111 [3]中国人民解放军95855部队,北京102600

出　　处：《测控技术》2019年第8期124-128,共5页Measurement & Control Technology

摘　　要：滑油在线屑末监测器能够实现发动机滑油系统中金属屑末类型和大小的实时监测。为了完成微弱金属屑末信号的检测及与系统间的数据传输,采用C语言实现滑油在线屑末监测器的软件设计。以TMS320C6713B浮点DSP高速的运算能力、强大的实时处理能力等特点设计的硬件系统为软件实现平台,完成了基于EDMA数据搬移的数据采集,基于小波降噪的信号滤波算法、基于屑末信号特征的屑末检测算法、高速数据传输等软件模块的设计。实时测试结果表明,滑油在线屑末监测器软件实现了传感器微弱信号的提取,能够实时监测金属屑末的大小、类型及传输原始数据。目前该软件已应用于某型发动机。The type and size of metal debris in the engine oil system can be monitored in real time by the online debris monitor.In order to detect the weak signal of the metal debris and transmit data to the system,the software design of online debris monitor is implemented by C language.The hardware system designed with the high-speed computing and powerful real-time processing capability of TMS320C6713B floating-point DSP provides a platform for software implementation.The functional modules were realized,which mainly including data acquisition based on EDMA data movement,signal filtering algorithm based on wavelet denoising,particle detection algorithm based on particle signal feature,and high-speed data transmission.The real-time test results show that the online debris monitor software realizes the extraction of weak signals of the sensor,and can monitor the size,type and transmission of raw data of metal particles in real time.At present,the software has been applied to a certain type of engine.

关 键 词：在线屑末传感器 软件设计 TMS320C6713B DSP 小波降噪 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]