Study on Combustion State Monitoring Based on MFCC Voiceprint Recognition

WANG Yuan; GE Shenwei; YAO Pengbo; SHEN Guoqing

doi:10.19805/j.cnki.jcspe.2025.240375

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Study on Combustion State Monitoring Based on MFCC Voiceprint Recognition

更新时间：2026-10-10

- Study on Combustion State Monitoring Based on MFCC Voiceprint Recognition
- Chinese Journal of Power Engineering Vol. 45, Issue 7, Pages: 1010-1019(2025)
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院,北京,102206
  2. 华北电力大学控制与计算机工程学院,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240375
  CLC：
- Online First：14 July 2025，
  
  Published：2025
- 稿件说明：
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王元,葛沈炜,姚鹏搏,沈国清. 基于MFCC声纹识别的燃烧状态监测研究动力工程学报, 2025, 45(7): 1010-1019 https://doi.

org/10.19805/j.cnki.jcspe.2025.240375
王元,葛沈炜,姚鹏搏,沈国清. 基于MFCC声纹识别的燃烧状态监测研究动力工程学报, 2025, 45(7): 1010-1019 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240375.

org/10.19805/j.cnki.jcspe.2025.240375 DOI：

摘要

锅炉燃烧监测对其安全运行意义重大

长期以来一直是研究的重点。燃烧产生的声音可以直接反映其状态变化

而受高温、多尘、高频噪声等因素影响

锅炉内部声音特征的有效特征提取难度极大。对此提出了一种基于一维卷积神经网络和声纹技术的燃烧特征提取方法。在构建燃烧声音采集实验平台的基础上

提取各种燃烧和非燃烧状态对应的声音特征。通过计算声纹各特征的基尼指数

筛选出火焰声纹的最佳特征。通过比较有噪声和无噪声的数据集模型

验证了火焰声纹模型的鲁棒性和准确性。结果表明:在原始数据中

声音特征识别准确率可达97.13%

优化后特征识别准确率提高到98.26%;在添加噪声的数据集中

优化后特征识别准确率可达93.29%。

Abstract

Boiler combustion monitoring is of great significance to the safe operation of boilers and has long been a focus of research. The sound generated by combustion can directly reflect its state changes. However

due to factors such as high temperature

dust

and high-frequency noise

it is extremely difficult to effectively extract the sound characteristics inside the boiler. In response to this

a combustion feature extraction method based on one-dimensional convolutional neural network and voiceprint technology was proposed. Based on the construction of a combustion sound acquisition experimental platform

the sound characteristics corresponding to various combustion and non-combustion states were extracted. By calculating the Gini index of each feature of the voiceprint

the best features of the flame voiceprint were selected. The robustness and accuracy of the flame voiceprint model were verified by comparing the noisy and noise-free dataset models. The results show that in the original data

the sound feature training accuracy can reach 97.13%

and the training accuracy after optimization is increased to 98.26%; in the dataset with added noise

the optimized feature training accuracy can reach 93.29%.

关键词

Keywords

references

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