China Safety Science Journal ›› 2025, Vol. 35 ›› Issue (9): 113-120.doi: 10.16265/j.cnki.issn1003-3033.2025.09.1223

• Safety engineering technology • Previous Articles     Next Articles

Research on impact of different illuminances on miners' attention based on EEG signals

JIANG Song1,2(), LIU Dizhen1,2,**(), CHEN Ying1,2, JIANG Guowei3, XU Zhonghua4, HE Runfeng1,2   

  1. 1 School of Resource Engineering, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
    2 Xi'an Key Laboratory for Intelligent Industrial Perception, Calculation and Decision, Xi'an University of Architecture and Technology, Xi'an Shaanxi 710055, China
    3 Inner Mongolia Xianhong Technology Co., Ltd., Hohhot Inner Mongolia 010010, China
    4 Sinosteel Shandong Fuquan Mining Co., Ltd., Jining Shandong 272500, China
  • Received:2025-04-01 Revised:2025-06-17 Online:2025-09-28 Published:2026-03-28
  • Contact: LIU Dizhen

Abstract:

To explore the impact of underground lighting on miners' cognition, an EEG experiment was designed under different lighting conditions (100, 60, 30, 15 lx). EEG signals features were extracted using power spectral density, and α, β and θ rhythmic waves were selected for analyzing attention feature values. The analysis results were validated by using the Schultz grid test. The results indicate that β waves always occupy a larger proportion in the energy proportion graph. In the brain map, it reaches the maximum value in working condition 2, indicating that the subject is focused. The attention eigenvalue (β/θ value) shows a downward trend in the four working conditions. The β/θ value of working condition 4 decreases by 54.86% compared with that of working condition 2 at 55 min of the test, which indicates that the miner's attention is optimal at the light intensity of 60 lx, and significantly weakens at 15 lx. The Schultz grid test has the shortest duration and lowest error rate in condition 2, and the reliability reaches 84.83%, while under condition 4, the reliability is only 73.15%. The number of errors made by miners significantly increases, and attention shows a downward trend.

Key words: electroencephalogram (EEG), illumination, miners' attention, rhythm waves, reaction time

CLC Number: