An elevator hoisting machine fault diagnosis system and method based on multi-sensor fusion data

The elevator traction machine fault diagnosis system, which integrates multi-sensor data, solves the problems of data silos and small sample scenarios in elevator traction machine fault diagnosis, achieving efficient and reliable fault diagnosis and improving the diagnostic accuracy and adaptability of the model.

CN122403233APending Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing elevator traction machine fault diagnosis technologies face the problem of data silos, high communication overhead and unreasonable resource allocation in federated learning, lack of physical consistency guarantee for data augmentation in small sample scenarios, and lack of organic coupling between digital twin simulation data and federated learning framework.

Method used

The elevator traction machine fault diagnosis system, which uses multi-sensor fusion data, forms a complete closed loop of simulation generation, federated training, and edge inference by combining cloud-based digital twin simulation data with fault-driven asynchronous federated communication, multi-modal semantic alignment multi-teacher knowledge distillation and aggregation, and a generative model that introduces physical consistency constraints.

Benefits of technology

It significantly reduces communication overhead, improves the diagnostic accuracy and reliability of the model under small sample conditions, ensures the physical rationality of the generated data, and adapts to the accuracy in non-independent and identically distributed scenarios.

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Abstract

本发明涉及电梯设备状态监测与智能故障诊断技术领域,具体为一种基于多传感器融合数据的电梯曳引机故障诊断系统及方法,包括:多传感器数据采集模块,用于同步采集电梯曳引机的多源传感器信号;边缘计算网关,部署于各电梯站点,包括数据预处理单元、故障特征能量检测单元、本地训练单元和轻量化推理引擎,所述故障特征能量检测单元用于根据所述多源传感器信号计算故障特征检测统计量。本发明故障驱动的异步联邦通信机制,仅在检测到潜在故障时触发同步,通信轮次和数据量大幅降低,通过多模态语义对齐的多教师知识蒸馏聚合,将异构传感器数据映射至统一语义空间,提升了模型在非独立同分布场景下的准确率。
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