基于贝叶斯记忆模块增强的用电数据异常检测方法及装置

By introducing a Bayesian memory module and a feature extraction framework constrained by a joint reconstruction-regression task in electricity consumption data anomaly detection, the problem of insufficient robustness and generalization ability of existing methods in complex scenarios is solved. This enables the capture of long-term dependencies and the suppression of contaminated data, thereby improving the accuracy and adaptability of anomaly detection.

CN121659145BActive Publication Date: 2026-07-17BEIJING UNIV OF POSTS & TELECOMM +4

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF POSTS & TELECOMM
Filing Date
2025-11-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for detecting anomalies in electricity consumption data struggle to capture the contextual dependencies and complex nonlinear relationships of time series data when faced with complex and ever-changing real-world scenarios. Furthermore, they are unable to effectively learn long-term dependencies that extend beyond the time window size, resulting in insufficient robustness and generalization ability. In particular, the unexpected generalization problem of the model to anomalies is severe when contaminated data is present.

Method used

We employ a Bayesian memory module-based enhancement method to construct a feature extraction framework constrained by the reconstruction-regression joint task by inserting positional information within and between windows. By combining the reconstruction autoencoder and the Bayesian memory module, we suppress the influence of contaminated data, extract temporal features, and perform multi-objective optimization.

Benefits of technology

It improves the robustness and accuracy of electricity consumption data anomaly detection, effectively captures long-term dependencies in complex scenarios, enhances the model's adaptability to fluctuations in input features, suppresses interference from contaminated data, and achieves more efficient anomaly detection.

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Abstract

本发明公开了一种基于贝叶斯记忆模块增强的用电数据异常检测方法及装置,属于用电数据异常检测技术领域。本发明的用电数据异常检测方法,包括:针对原始用电数据,进行窗口内和窗口间位置信息插入处理,得到样本数据;基于贝叶斯记忆模块,根据样本数据,构建重构‑回归联合任务约束的特征提取框架;基于重构‑回归联合任务约束的特征提取框架对用电数据进行异常检测。本发明通过引入不同的高斯分布来建模复杂正常模式的不确定性并结合重参数化采样策略生成鲁棒的时序模式,在有效抑制污染数据干扰的同时增强了模型对输入特征波动的适应能力。
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