计算机科学 ›› 2020, Vol. 47 ›› Issue (12): 258-261.doi: 10.11896/jsjkx.200700039
朱晓玲1, 李琨1, 张长胜1, 杜付鑫2
ZHU Xiao-ling1, LI Kun1, ZHANG Chang-sheng1, DU Fu-xin2
摘要: 电梯导靴作为电梯轿厢的重要组成部分对电梯的安全问题具有直接的影响.为了对电梯导靴故障进行更加准确的综合诊断提出了一种基于Gabor小波变换和多核支持向量机的诊断方法.首先通过加速度传感器采集设备主体的振动信号并利用经验模态分解得到固有模态函数分量.然后采用Gabor滤波器对低频分量进行滤波去噪以使提取低频率上数据的特征.最后采用权重的方式将局部和全局的核函数进行线性相加组成多核支持向量机对数据进行分类.实验结果验证了所提方法的有效性相比基于小波变换-最小二乘支持向量机的故障诊断方法所提方法的故障诊断准确率提高了约5%达到了87.6%.
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