一个基于多源信息融合的新型层次视觉变压器和波段时间频率,用于智能故障诊断
Changfen Gong1, Rongrong Peng1
1School of Education, Nanchang Institute of Science and Technology, Nanchang 330108, China.
Sensors (Basel, Switzerland)
|March 28, 2024
概括
本研究介绍了一种新型的层次视觉变压器 (NHVT),用于机械设备的智能故障诊断. NHVT有效地整合了多源信息,增强了特征提取和改善诊断性能.
科学领域:
- 机械工程 机械工程
- 人工智能的人工智能
- 信号处理 信号处理
背景情况:
- 深度学习 (DL) 显示出智能故障诊断的前景,但往往无法从机械设备中捕获关键的时间和全球特征.
- 由于复杂的操作环境,单源故障诊断方法难以稳定和广泛地提取故障特征.
- 现有的DL方法面临性能崩,原因是故障信息捕获不足.
研究的目的:
- 为了提高机械元件的端到端故障诊断性能.
- 从多个来源信息中提取和整合丰富的故障特征的强大方法.
- 克服现有方法在捕获时间信息和全球特征方面的局限性.
主要方法:
- 多源信号被转换成二维时间频率图.
- 一种新的层次视觉变压器 (NHVT) 用于增强非线性表示和丰富故障特征.
- 多源信息融合 (MSIF) 策略将信息整合到NHVT架构中.
主要成果:
- 拟议的NHVT架构成功地从多源信息中提取了有用的功能.
- 在多源数据集上,NHVT与最先进的 (SOTA) 方法相比表现优越.
- 该方法有效地捕获时间信息和全球特征,从而提高了诊断准确度.
结论:
- 新型层次视觉变压器与多源信息融合相结合,在机械故障诊断方面取得了重大进展.
- 这种方法提供了一种更稳定,更全面的方法,用于在具有挑战性的环境中提取断层特征.
- 该NHVT架构证明有效利用多源数据进行增强的智能故障诊断.
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