中国安全科学学报 ›› 2023, Vol. 33 ›› Issue (9): 56-62.doi: 10.16265/j.cnki.issn1003-3033.2023.09.1032

• 安全工程技术 • 上一篇    下一篇

智能通风矿井风速传感器数据清洗模型

赵丹1,2(), 沈志远1,2, 宋子豪1,2, 解丽娜3, 刘柏辰1,2   

  1. 1 辽宁工程技术大学 安全科学与工程学院,辽宁 阜新 123000
    2 辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室,辽宁 葫芦岛 125105
    3 沈阳工程学院 能源与水利学院,辽宁 抚顺 113000
  • 收稿日期:2023-03-23 修回日期:2023-06-28 出版日期:2023-09-28
  • 作者简介:

    赵 丹 (1982—),女,辽宁阜新人,博士,教授,主要从事矿井智能通风方面的研究。E-mail:

  • 基金资助:
    辽宁省教育厅基金资助(LJ2019JL025)

Mine airflow speed sensor data cleaning model for intelligent ventilation

ZHAO Dan1,2(), SHEN Zhiyuan1,2, SONG Zihao1,2, XIE Li'na3, LIU Baichen1,2   

  1. 1 College of Safety Science & Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China
    2 Key Laboratory of Mine Thermo-motive Disaster and Prevention, Ministry of Education, Liaoning Technical University, Huludao Liaoning 125105, China
    3 College of Energy and Water Conservancy, Shenyang Institute of Technology, Fushun Liaoning 113000, China
  • Received:2023-03-23 Revised:2023-06-28 Published:2023-09-28

摘要:

针对当前智能通风矿井风速传感器监测数据清洗破坏信息完整性等问题,提出一种基于堆叠降噪自编码器(SDAE)的矿井风速传感器监测数据清洗模型。首先应用通风系统正常运行状态下的风速数据样本进行SDAE训练,并基于核密度估计(KDE)方法获取训练样本的重构误差上限及容限时间;然后分析测试样本中重构误差、误差持续时间与训练样本的重构误差上限、容限时间之间的关系,辨别“脏”数据类型;最后利用东山煤矿风速传感器监测数据进行有故障样本和无故障样本的数据清洗试验。结果表明:所提模型能自动辨别噪声点和缺失值,并通过数据重构修复“脏”数据,在过滤干扰数据的同时可有效保留通风故障状态信息,相比于降噪自编码器(DAE)、长短时记忆(LSTM)神经网络和卡尔曼滤波(KF)等其他数据清洗模型,该模型的平均绝对误差(MAE)和均方根误差(RMSE)平均降低了75.42%和74.98%。

关键词: 矿井通风, 风速传感器, 数据清洗, 数据重构, 堆叠降噪自编码器(SDAE)

Abstract:

At present, there are some problems such as incomplete data and information loss in monitoring data cleaning of mine airflow speed sensor. Therefore, a data cleaning method for mine airflow speed sensor based on SDAE was proposed. The airflow speed data samples of the ventilation system under normal conditions were trained by the SDAE algorithm to obtain the upper limit of reconstruction error and tolerance time by kernel density estimation (KDE). By comparing reconstruction error and error duration of test samples with the upper limit of reconstruction error and tolerance time, the "dirty" data was resolved. Using the monitoring data of wind speed sensor in Dongshan coal mine, the data cleaning test of faulty samples and non-faulty samples was carried out. The results show that this method can automatically identify the noise points and missing values. The "dirty" data is repaired directly by reconstruction. In the case of ventilation system fault, this method can effectively retain the state information while filtering out the interference data. Compared with other data cleaning models such as denoising autoencoder (DAE), long short-term memory (LSTM) neural network, and Kalman filter (KF), the average mean absolute error (MAE) and root mean squared error (RMSE) values of this model are reduced by 75.42% and 74.98% respectively.

Key words: mine ventilation, speed sensor, data cleaning, data reconstruction, stacked denoising autoencoder(SDAE)