Mining Publication: An Active Proximity Warning System for Surface and Underground Mining Applications
Original creation date: February 2001
NIOSH has developed an active proximity warning system called HASARD (Hazardous Area Signaling and Ranging Device) for warning workers as they approach known dangerous areas around heavy mining equipment and other dangerous work zones. HASARD is composed of a transmitter and a receiver. The transmitter generates a 60-kHz magnetic field using one or more wire loop antennas. Each antenna is adjusted to establish a magnetic field pattern for each hazardous area. The receiver, worn by the worker, is a magnetic field strength meter. The received signal is compared against preset levels which are calibrated to identify levels of danger. The receiver outputs can include visual, audible, and vibratory indicators and it can also be made to disable machine functions. HASARD was field tested on a Joy 12 continuous miner, a Komatsu 210 M Haulpak, and on a highwall launch vehicle. Slight modifications were made for each application. HASARD provided warnings as designed and proved to be rugged enough to withstand the harshest of production environments.
Authors: WH Schiffbauer
Conference Paper - February 2001
NIOSHTIC2 Number: 20021434
SME Annual Meeting (Denver, CO; Feb 26-28, 2001), Preprint No. 01-117, SME, Inc., 2001 Feb; :1-8
See Also
- Engineering Considerations and Selection Criteria for Proximity Warning Systems for Mining Operations
- An Environmentally Robust Proximity Warning System for Hazardous Areas
- Innovative Safety Interventions: Feasibility of Using Intelligent Video for Machinery Applications
- Intelligent Proximity Detection to Improve Miner Safety
- Proximity Detection: A Continuing Research Imperative
- Proximity Warning Systems for Mining Equipment
- Recommendations for Evaluating & Implementing Proximity Warning Systems on Surface Mining Equipment
- Recommendations for Testing Radar-Based Collision Warning Systems on Heavy Equipment
- Test Results of Collision Warning Systems for Surface Mining Dump Trucks
- Test Results of Collision Warning Systems on Off-Highway Dump Trucks: Phase 2
- Page last reviewed: 9/21/2012
- Page last updated: 9/21/2012
- Content source: National Institute for Occupational Safety and Health, Mining Program