indulge 发表于 2025-3-21 16:47:51
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https://doi.org/10.1007/978-0-387-98165-9CompTIA RFID+; Mining; RFID; communication; communication system; information; intrinsic safe; radio-freque懒洋洋 发表于 2025-3-22 10:46:19
Mine Communication Technique,s two-way interaction is mandatory for risk assessment, coordinated team work, and effective safety management for underground miners. Communication becomes more important in underground mines as mining, by its inherent nature, is a hazardous activity. An effective and real-time communication can avalcoholism 发表于 2025-3-22 15:27:23
Evaluation of Suitable Frequency,l properties and space limitations (Bandyopadhyay et al., 2007; Wait, 1971; Wait and Hill, 1972). The heterogeneous and complex structure of coal and rock strata further complicates the process of radio propagation. Radio frequency (RF) waves get attenuated significantly when traversing through coal注入 发表于 2025-3-22 17:16:06
Trapped Miner Communication,To save valuable miners’ life, a suitable system is required for detecting the precise location of a trapped miner and helping the rescue team or mine management in displacing the debris from the right place and at the right time without wasting the valuable time after disaster (Bandyopadhyay et al.罗盘 发表于 2025-3-22 22:09:34
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Line-of-Sight Communication,c constant of 5–10. Under these conditions a reasonable hypothesis is that the transmission takes the form of wave propagation, since the wavelength of ultra-high-frequency (UHF) waves are smaller than the tunnel dimensions (Reed and Russell, 1966; Emslie et al., 1975). An electromagnetic wave trave乱砍 发表于 2025-3-23 05:35:41
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