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Proximity Detection Single Source Page
 Frederick Mining Controls
Frederick Mining Controls (FMC) started working on a proximity system called TramGuard TM in September of 2004. This system is based on NIOSH developed technology referred to as HASARD. FMC took the basic HASARD concepts, added numerous features, made it coal mine rugged, and tested it on production underground equipment. FMC continues to advance their system which now supports multiple machines. The latest development is referred to as HazardAvert®. HazardAvert®/ TramguardTM Underground Proximity Detection HazardAvert® is a proximity-detection system that establishes a Magnetic Marker Field around the continuous mining machine using a device called a "Generator". The continuous mining machine operator and miners each wear Personal Alarm Devices (PAD). The PAD accurately measures the marker field and provides the operator and miners with an audible sound and a visual alert when they are in a dangerous area. A machine mounted alert is also provided. The goal of the system is to help train operators and other miners to stay clear of the hazards around the continuous mining machine. If the continuous mining machine is closer to a miner than a specified distance, the HazardAvert® system will stop the continuous mining machine tram motors and the hydraulic booms. There are many fail-safe features built into the system which ensures that all systems work correctly and to factory specifications, including at least; marker integrity, battery level, communications integrity. A successful field trial of the system was conducted at Consol of Kentucky Inc.'s Jones Fork E-3 Mine in November of 2005. During this field test, the system provided consistent warning and shutdown commands and effectively prevented an operator wearing a PAD from entering the hazardous area around the machine. The system components have been approved by MSHA as complying with the applicable provisions of Title 30 Code of Federal Regulations (30 CFR) Part 18 . FMC has developed a revision to the MSHA approved HazardAvert® design to incorporate the PAD into a cap lamp battery (called a tracking PAD lamp or TPL). The revised design is currently under evaluation for MSHA approval. Contacts:
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