多源融合驱动的煤矿通防灾害智能预警与虚拟演练研究

Multi-source fusion-driven intelligent early warning and virtual drilling for coal mine ventilation and prevention disasters

  • 摘要:
    目的 针对煤矿通防灾害多源监测数据异构性强、风险前兆隐蔽及实地应急演练成本高、风险大的问题,构建多源融合驱动的智能预警与虚拟演练模型。
    方法 采集瓦斯、风速、CO/CO2浓度、温/湿度、粉尘、负压及设备运行状态等监测数据,完成缺失值处理、异常剔除、归一化和风险等级标注。在此基础上,构建CNN-LSTM、GNN和Transformer协同建模框架,分别提取通防数据的局部时序特征、空间关联特征和多变量依赖特征,并引入SHAP和注意力权重识别关键致险因子。同时,融合虚拟现实、数字孪生和人体姿态评估技术,建立面向灾害场景复现与人员应急行为评估的沉浸式演练系统。
    结果 模型能够较稳定识别不同风险等级,其中CNN-LSTM验证准确率约为0.889,低、中、高风险识别准确率分别为89.04%、84.50%和76.70%;风速波动、瓦斯均值、粉尘峰值和CO浓度梯度为主要影响因子。
    结论 所建模型提升了煤矿通防灾害风险识别精度和预警提前能力,虚拟演练模块增强了预警结果的场景化应用效果,可为矿井灾害防控和安全管理闭环优化提供支撑。

     

    Abstract: In order to address the strong heterogeneity of multi-source monitoring data, the concealment of risk precursors, and the high cost and risk of on-site emergency drills for coal mine ventilation and prevention disasters, this study constructs a multi-source fusion-driven intelligent early warning and virtual drilling model. Multi-source monitoring data, including gas concentration, air velocity, CO/CO2 concentration, temperature and humidity, dust concentration, negative pressure, and equipment operating status, were collected and processed through missing-value imputation, outlier removal, normalization, and risk-level labeling. A collaborative modeling framework integrating CNN-LSTM, GNN and Transformer was developed to extract the local temporal features, spatial correlation features, and multivariate dependency features of ventilation and prevention disaster data. SHAP analysis and attention weights were further introduced to identify key risk-contributing factors. Meanwhile, virtual reality, digital twin, and human posture assessment technologies were integrated to establish an immersive drilling system for disaster scenario reconstruction and emergency behavior evaluation. The proposed model achieved stable identification of different risk levels. The CNN-LSTM model obtained a validation accuracy of approximately 0.889, and the recognition accuracy for low-, medium-, and high-risk levels were 89.04%, 84.50%, and 76.70%, respectively. Airflow fluctuation, mean gas concentration, dust peak value, and CO concentration gradient were identified as the main influential factors. The proposed model improves the accuracy of coal mine ventilation and prevention disaster risk identification and enhances early warning capability. The virtual drilling module strengthens the scenario-based application of warning results and can provide technical support for closed-loop optimization of mine disaster prevention, control, and safety management.

     

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