| 兰宇,张为民,刘朝晖.数控机床能耗多通道监测系统的数据处理研究[J].井冈山大学自然版,2016,(1):1-5 |
| 数控机床能耗多通道监测系统的数据处理研究 |
| DATA PROCESSING RESEARCH OF MULTI-CHANNEL ENERGY CONSUMPTION MONITORING SYSTEM FOR CNC MACHINE TOOL |
| 投稿时间：2015-08-13 修订日期：2015-12-14 |
| DOI：10.3969/j.issn.1674-8085.2016.01.001 |
| 中文关键词: 多通道 滤波 Matlab 重采样 数据同步 |
| 英文关键词: multi-channel filtering Matlab resampling data synchronization |
| 基金项目: |
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| 摘要点击次数: 10252 |
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| 中文摘要: |
| 针对使用多通道监测系统监测数控机床能耗信息时存在的信号干扰、采样率不同等问题,提出了一种基于软件编程的数据预处理方法。通过设计低通滤波器,对采集信号进行滤波处理,消除数控机床加工过程中采集信号振动较大、干扰噪声较多的问题。对于个别系统的采样率不同,利用重采样技术改变其采样频率,获得新的采样序列。根据数控机床切削和空载转换时采集信号的突变,运用多阈值分割算法,基于Matlab编程获取其突变特征点,并以此为基准实现不同采集系统之间的数据同步。研究结果表明,运用上述方法对采集信号数据进行预处理,为后续分析数控机床能耗信息带来了极大的便利。 |
| 英文摘要: |
| Aiming at problems such as signal interference and different sampling rates using a multi-channel monitoring system to monitor the energy consumption information of CNC machine tools, we propose a data preprocessing method based on the software programming. Through the design of a low-pass filter for filtering the signal, we eliminate some problems caused by vibration and interference noise in the CNC machining process. For the different sampling frequency of individual acquisition system, we adopt resampling technology to change its sampling frequency and gain new sampling sequence. According to the signal mutation by the conversion of cutting and no-load process of CNC machine tools, we apply multi-threshold segmentation algorithm and Matlab programming to obtain the feature point of the signal mutation, and taking it as a benchmark to realize data synchronization between different acquisition systems. Research indicates that the above methods for data preprocessing can bring great convenience for analyzing the energy consumption information of the machine tool. |
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