Abstract
Miner’s wearable robot is an important mobile terminal of the monitoring network for the coal mine production safety. However, it is difficult to find the study on the miner’s emotion change using brain-computer interface (BCI) for miner’s wearable robot, especially for the smart helmet. This paper explores the anxiety change rule and the detection method using BCI of miner’s smart helmet. There are three contributions in this paper. Firstly, an emotional state evoked paradigm is designed to find the brain area where the emotion feature is most obvious. Then, the accurate electrode position is determined for the electroencephalograph (EEG) collection of the negative emotion on the basis of the international 10–20 systems. Secondly, a fusion algorithm of the anxiety level is proposed to evaluate the miner’s mental state by using the θ, α, and β rhythms of EEG. Thirdly, the miner’s smart helmet system is built to collect the human state which includes the mental parameters of the anxiety level, the fatigue level, the concentration level, and the environmental parameter in coal mine. Experiments demonstrate that the position Fp2 is the best electrode position for obtaining the anxiety level parameter. The most obvious EEG changes appear within the first 2 s after the stimulator works. The amplitudes of the θ rhythm increase most obviously in the negative emotion. In addition, the fusion algorithm of the anxiety level parameter has a good following function to the negative emotion change. This method can reflect quantitatively the anxiety level of a human. So it is avoided for the miner to operate improperly, and then the operation safety can be improved.
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Acknowledgements
This research was sponsored by the Natural Science Foundation of China (51405381), Key Scientific and Technological Project of Shaanxi Province (2016GY-040), the Science Foundation of Xi’an University of Science and Technology (104-6319900001), Leading Initiative for Excellent Young Researcher (LEADER) of Ministry of Education, Culture, Sports, Science and Technology-Japan (16809746), Grant in Aid for Scientific Research of JSPS (17 K14694), Research Fund of State Key Laboratory of Marine Geology in Tongji University (MGK1608), Research Fund of State Key Laboratory of Ocean Engineering in Shanghai Jiaotong University (1510), Research Fund of The Telecommunications Advancement Foundation, Fundamental Research Developing Association for Shipbuilding and Offshore and Strengthening Research Project of Kyushu Institute of Technology.
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Wang, M., Zhang, S., Lv, Y. et al. Anxiety Level Detection Using BCI of Miner’s Smart Helmet. Mobile Netw Appl 23, 336–343 (2018). https://doi.org/10.1007/s11036-017-0935-5
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DOI: https://doi.org/10.1007/s11036-017-0935-5