摘要
针对目前煤矿应急救援过程中语音传输易受现场噪声环境干扰,语音质量差,救援队员佩戴氧气全面罩后,不便佩戴普通耳机和麦克风的情况,着重研究借助骨骼、神经、肌肉传播声波产生听觉的骨传导听说技术在煤矿应急救援语音采集传输的应用,并首次利用该技术研制出煤矿应急救援音频采集传输的骨传导语音听说器,解决灾变现场语音信号的高质量采集与传输的问题,从已装备此骨传导语音听说器的煤矿应急救援队应用实践表明,该设备在危险环境下,能实现救援队员佩戴全面罩后骨传导语音听说器通话清晰、抗噪声能力强的功能,地面指挥中心能实时掌握灾变后井下被困人员及救援队员的生命状况和事故现场状态,提高指挥救援的安全性和可靠性。
Due to the present situation of coal mine emergency rescue process speech transmission was vulnerable to the interference noise environment, the voice quality was poor, it was inconvenient to wear ordinary headphones and microphone after rescuers wearing oxygen comprehensive cover, this paper focused on application of research bone conduction technology with bone, nerve, muscles produce audible sound waves in coal mine emergency rescue speech acquisition transfer,and the technology was fistly applied to develop bone conduction heard for coal mine emergency rescue audio collection and transmission, solved the high quality of speech signal acquisition and transmission issues in coal mine disaster circumstance, practice and application of equipment for coal mine emergency rescue teams showed that, it could achieve function of clear communication, strong ability to resist noise for bone conduction voice heard device after rescuers wearing full-face cover in dangerous environment, real time control of the catastrophic ground command center could trap life condition and the scene of the accident state of underground persons and rescuers, improve command rescue security and reliability.
出处
《煤炭科学技术》
CAS
北大核心
2013年第8期95-98,共4页
Coal Science and Technology
关键词
应急救援
骨传导听说技术
语音听说器
音频采集
滤除噪声
实时回传
emergency rescue
bone conduction heard technology
voice heard device
audio sampling
filter out noise
real time back
