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| Illustration of a close proximity warning device on a continuous miner |
Description of Problem
Mining has always been a dangerous occupation. Although advances in technology can significantly reduce the risk of injury, that same technology can introduce new hazards. This is especially the case in underground and surface mines, where restricted workspace around larger, more productive mining machinery has resulted in serious traumatic injuries involving crushing and pinning. At underground mines, the risk involves workers in close proximity to remote-control continuous mining machines. At surface mines, the risk involves workers being injured while in close proximity to large haul trucks.
Research and Development Activities
NIOSH collaborative research has led to better technology to warn miners who work around mobile equipment and in hazardous work areas. The Hazardous Area Signaling and Ranging Device (HASARD) offers a personal alert to the worker, along with remote shutdown capability. The HASARD system has patented features (e.g., a robust marker) to achieve greater reliability while minimizing nuisance alarms.
R&D Outputs and Transfer Activities
Several mining machine manufacturers have expressed interest in the application of the HASARD system. Workshops have been presented at the request of the Mine Safety and Health Administration (MSHA) and the United Mine Workers of America to help customers understand and consider application of the proximity warning technology.
A Cooperative Research and Development Agreement is pending to transfer HASARD technology to a South African firm (AIR SUN AUTO). NIOSH continues to work with MSHA and mining companies to field test the proximity warning technology.
Description of Intermediate Outcome
The HASARD system has been recently licensed to three firms. GeoSteering Mining Services is marketing its version of the system for use in underground mines. GeoSteering is also developing prototypes of its version of the NIOSH technology for use on surface haul trucks. ICG ADDCAR has adapted the system for use on highwall mining machines. Alliance Coal is presently prototyping the system for potential use on continuous mining machines.
Two licenses are pending: SSA Marine and DBT America Inc.