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Proximity detection / collision warning is a technology that can be installed on mining machinery to detect the presence of personnel or machinery within a certain distance of a machine. These systems can be programmed to send warning signals and stop machine movement when the programmed areas are breached. We use the term "proximity detection" to refer to underground mining applications which often are intended to inhibit machine movement. We use the term "collision warning" to refer to surface machinery applications that typically provide warning signals only. MSHA has assisted the industry in the development of this technology on a variety of machines, both underground and surface.
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Notice of Proposed Rulemaking (NPRM): MSHA published a Notice of Proposed Rulemaking in August 2011 for the use of proximity detection systems on continuous mining machines in underground coal mines.
Underground Mobile Machine Proximity Detection
As of May 2014, the mining industry has experienced 38 fatal crushing or pinning accidents since 1984 that involved the operation of remote control continuous mining machines. Although remote control continuous mining machines have the highest incidence rate, similar accidents have been recorded on other types of mining machines.
The following proximity detection systems have been approved by MSHA to meet the "permissibility" requirements in Title 30 Code of Federal Regulations (30 CFR) Part 18. The MSHA approval indicates only that MSHA has determined that the system is not a spark or thermal ignition hazard in a potentially explosive atmosphere. The approval does not address system performance.
Strata Mining Products HazardAvert® System
Nautilus, International Coal-Buddy System
Matrix Design Group/Joy Mining Model M3-1000 Proximity Monitoring System Matrix Design Group/Joy Mining Intellizone™ Proximity Detection System
Proximity Detection / Collision Warning Developers
The following manufacturers have proximity detection / collision warning products that have been demonstrated at various operations around the world. We include this information to assist the mining industry in evaluating the technology and making informed decisions. Inclusion of this information on the MSHA website should not be construed as endorsement of these products.
Acumine Collision Avoidance Safety System for Heavy Vehicles (ACASS)
Becker Mining Systems Collision Avoidance System
Booyco Electronics Collision Warning System
Caterpillar Object Detection System
Industrea Collision Avoidance System CAS-CAM/RF®
Infotronix Collision Avoiance System (CAS)
Modular Mining Systems, Inc. "Roadmap" Proximity Detection
PBE Proximity Alert System
Preco Electronics "Preview" Radar System
SAFEmine Advanced Traffic Awareness Technology
Strata Surface and Underground HazardAvert™ SystemPublications
MSHA Proximity Detection Proximity Protection Systems - Safety in the Red Zone (by permission from Coal People magazine) MSHA Proximity Detection Update
Other Sources of Information
Queensland, Australia Proximity Detection Workshop Presentations
New South Wales, Australia Proximity Detection Workshop Presentations
NIOSH Proximity Detection Topic Page
NIOSH Workshop on Proximity Warning Systems for Mining Equipment
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