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Underground Mine Emergency Communication and Tracking System

Stolar Research Corporation presents a multi-mode two-way radio communication and tracking system for use in underground mines, crucial for emergencies like methane ignition or coal dust explosions. Features include wireless transmission, waveguides, intrinsically safe operation, redundant tracking subsystems, real-time network, and cap lamp-powered tracking beacons. Regulation changes and tax incentives are suggested to enhance mine safety.

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Underground Mine Emergency Communication and Tracking System

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  1. Multi-Mode Two-Way Radio Communication and Tracking System for Use UnderEmergency and OperationalConditions in Underground Mines Presented by Stolar Research Corporation848 Clayton HighwayRaton, New Mexico 87740(505) 445-3607 At MSHA Mine Rescue Equipment and Technology ForumNational Press ClubWashington, D.C.March 13, 2006

  2. Methane Ignition and Coal Dust Explosion in Mine Entry

  3. Mine-Wide Two-Way Radio Communications Mine-wide two-way Radio Communications are required during the first few minutes of an incident or the situation goes out of control. • 1984 Welburg Mine Fire • 27 dead • Only a 900-ft walk to safety • 2002 Quecreek Water Inundation • 9 trapped • 2004 Sago Mine Explosion • 12 dead • Only an 1,800-ft walk to safety

  4. Radio Communications and Tracking System Features • Wireless two-way transmission • Natural waveguides • Through-the-earth waveguide (ultra-low frequency) • Conveyor belt/cable waveguide (low frequency) • Coal seam waveguide (low frequency) • Passageway waveguide (ultra-high frequency) • Intrinsically safe • Operational when ventilation is disrupted

  5. Radio Communications and Tracking System Features • Three redundant tracking and location subsystems • Real-time network with graphic display • Surface Delta Tracker to pinpoint location • In-mine Fox Hunter Antenna • Extremely reliable network • F1/F1 repeater drilled into roof rock • Expandable and self-healing • Through-the-earth redundancy • Modulated for digital transmission

  6. Radio Communications and Tracking System Features • Cap lamp-powered tracking beacon • Cap lamp transceiver • Multi-mode • Two-way text messaging • Synthetic voice capability • Bluetooth link to monitor physiological condition and provide PDA download

  7. Radio Communications andTracking System

  8. Tracking BeaconThrough-the-Earth Waveguide

  9. Tracking Beacon • MSHA IS Certification Investigation IA-22294 • Keypad • OLED • Micro controller • Class L Transmitter

  10. Delta Tracker • Suppresses surface radio frequency interference (RFI) • Detects spreading EM waves • Pinpoints trapped miners’ location • Determines depth

  11. Delta Tracker Detectionof Mine Voids

  12. Suggested Regulation Changes • Combine 30 CFR 75:1600 and 30 CFR 49 • Require the same network and equipment • Require 96-hour system operation when ventilation system is disrupted

  13. Offer Tax Incentives • Purchase of equipment • Installation of equipment • Maintenance of equipment • Training of maintenance personnel

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