Reverse Implementation of Radio Frequency Identification (RFID) Technology for Personnel Tracking in Underground Mines [open pdf - 0B]
"The Mine Improvement and New Emergency Response Act (MINER Act) of 2006 calls for improvements in underground coal mine accident preparedness and response. One of the requirements is that each mine provide a method for aboveground personnel to determine the location of all underground personnel after an accident or mine emergency. Researchers at the National Institute for Occupational Safety and Health (NIOSH) Office of Mine Safety and Health Research initiated a study of personnel tracking systems that could be applied to underground mining. A new methodology was proposed that reverses the way conventional RFID [radio frequency identification] tracking systems are normally implemented."
Centers for Disease Control and Prevention: http://www.cdc.gov/
National Institute for Occupational Safety and Health: Technology News (September 2011), no.543