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Underground mine operations are associated with severe safety problems and due to the high attenuation of radio frequency waves in mines the application of wireless communication systems are highly restricted. To overcome these problems a RFID based wireless information and safety system has been developed at Central Institute of Mining and Fuel Research, Dhanbad, India. The hardware components of the system are ZigBeecompliant active Radio Frequency IDentification (RFID) devices/ transceivers. The devices can be programmed to act as end device (tag), router or coordinator that enables them to form an IEEE 802.15.4-based mesh network.
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