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NAUTILUS COAL-BUDDY – Operator’s Proximity Detection System for Underground Coal Mines Operating in an Explosive (Methane Gas) Environment (CLASS-I DIV-II)

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The Buddy Proximity Detection System was designed to train operators,
helpers and visitors to stay a safe distance away from Continuous Miners.

Nautilus Coal-Buddy (MSHA Accepted)

This proximity detection system was designed and manufactured to train operators, helpers and visitors to stay a safe distance away from Continuous Miners. It is being used every day in production in ‘gassy’ Massey Energy and ICG (International Coal Group) mines in the USA.

The average installation time for a complete Coal Buddy System is one midnight shift.

Two very small, intrinsically safe MF4 Antennas are installed on the CM and they radiate two magnetic fields around the complete Continuous Miner (CM). The strengths of these magnetic fields are measured by the operator’s Proximity Detection Device (PDD) and if the operator is too close to the CM his PDD will warn him.

If the operator gets dangerously close to the CM (inside the Red-Zone) then the PDD will automatically disable the CM.

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Picture courtesy of Joy Mining Machinery

Picture courtesy of Joy Mining Machinery

Picture courtesy of Joy Mining Machinery

Picture courtesy of Joy Mining Machinery

 

 

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Coal Buddy Mf4 Antenna Thumb

NAUTILUS COAL-BUDDY – MF4 Magnetic Field Antenna

The Buddy MF4 Magnetic Field Antenna has been designed to generate a magnetic field in the shape of a sphere or an ellipse around the antenna. The Operator’s Unit detects and measures the strength of this field. The Operator’s Unit has 3 field strength detectors built into it. Each one detects the magnetic field in …

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Coal Buddy Buddy Pdd Thumb

NAUTILUS COAL-BUDDY – Proximity Detection Device

The Proximity Detection Device (PDD) carried by the Continuous Miner operator is very small, weighs only 0.43lb (0.19kg) and slides directly onto his belt. The electronic circuit board inside the battery pack measures the distance between the operator and the approaching CM. If it gets too close the operator will be warned and then if …

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Coal Buddy System Xp Box Thumb

NAUTILUS COAL-BUDDY – Proximity Box

The Intrinsically Safe (IS) Proximity Box is located inside the Nautilus Explosion-Proof box (XP-Box). The circuit board inside the Proximity-Box contains all of the electronics required to provide the magnetic field for the two MF4 antennas. It also monitors the performance of the MF4 antennas and the cables that are connected to them.     …

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Coal Buddy Little Genius Wireless Programming Unit Thumb

NAUTILUS COAL-BUDDY – Little Genius Wireless Programming Unit

The Little-Genius (LG) is a wireless device which allows people to remotely monitor the status of the Buddy Proximity System. This only requires the user to push a button on the LG unit. Supervisors who have been trained and know the ‘security access code’ can use the LG to check how well the system is …

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