A Hybrid Approach for Efficient Modeling of Medium-Frequency Propagation in Coal Mines

Details

• Personal Author:
  Brocker DE ; Li J ; Sieber PE ; Waynert JA ; Werner DH ; Werner PL
• Description:
  An efficient procedure for modeling medium frequency (MF) communications in coal mines is introduced. In particular, a hybrid approach is formulated and demonstrated utilizing ideal transmission line equations to model MF propagation in combination with full-wave sections used for accurate simulation of local antenna-line coupling and other near-field effects. This work confirms that the hybrid method accurately models signal propagation from a source to a load for various system geometries and material compositions, while significantly reducing computation time. With such dramatic improvement to solution times, it becomes feasible to perform large-scale optimizations with the primary motivation of improving communications in coal mines both for daily operations and emergency response. Furthermore, it is demonstrated that the hybrid approach is suitable for modeling and optimizing large communication networks in coal mines that may otherwise be intractable to simulate using traditional full-wave techniques such as moment methods or finite-element analysis. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety
• Keywords:
  Analytical-processes Author Keywords: Coal Mines Coal-mining Communication-systems Communication Network Optimization Electric-power-transmission-lines Emergency-response Medium Frequency (MF) Mining-industry Models Propagation Radio-waves Signaling-systems Sound-propagation Transmission Lines (TLs) Underground-mining

  More +
• Series:
  Mining Publications
• ISSN:
  1045-9243
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OMSHR - Office of Mine Safety and Health Research
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  164-176
• Volume:
  57
• Issue:
  1
• NIOSHTIC Number:
  nn:20046071
• Citation:
  IEEE Antennas Propag Mag 2015 Feb; 57(1):164-176
• Contact Point Address:
  Donovan E. Brocker, Pennsylvania State University, University Park, PA 16802, USA
• Email:
  dhw@psu.edu
• Federal Fiscal Year:
  2015
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  IEEE Antennas and Propagation Magazine
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:65695ea1b72326b16cbbeddc488c6c08d8ae10d7f902cfebe584f996aeef9932c597e2a3cb66b7655fd8dc00a4254c16f113abd0cab4236ceb799cd94a450e7c
• Download URL:
  https://stacks.cdc.gov/view/cdc/228123/cdc_228123_DS1.pdf
• File Type:
  [PDF - 2.13 MB ]