拖拉机发动机异音检测的研究——基于Visual C++2008  

Research on the Tractor Engine Abnormal Sound Detection Based on the Viscaul C + + 2008

作　　者：徐永春[1] 徐凤英[2] 

机构地区：[1]广东理工职业学院计算机系,广州510091 [2]华南农业大学工程学院,广州510642

出　　处：《农机化研究》2014年第9期216-219,225,共5页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(31071583)

摘　　要：采用Visual C++2008强大的编程功能开发噪声检测系统,并对大量样本音频文件频谱图进行比对,逐步分析出合格与不合格产品的音频频谱特征。同时,区别合格产品与不合格产品的频谱判断区间,最后提出噪音率临界值作为划分产品合格与不合格的一个判断依据,对于噪声检测具有一定的参考价值。The noise detection system that is developed with Visual C ＋ ＋ 2008 tool compares some the sample of audio files,it steply analysis of audio spectrum characteristic of qualified and unqualified products,and it gets the difference between qualified products with substandard product. Finally,it proposes a noise rate value that is a judgment to qualified and unqualified product,which has a certain reference value for the noise detection.

关 键 词：拖拉机发动机 噪音检测 FFT C++ NET 频谱 

分 类 号：S219.031[农业科学—农业机械化工程]