Radios monitor hoists in dangerous environments
Digi radios are used to warn the operator if operating limits, MSHA or OSHA safety regulations are being exceeded during hoisting of miners and materials.
SafeHoist is using Digi International MaxStream 2.4GHz XStream radios embedded in its proprietary Hoist Monitoring Systems to provide critical safety information to hoist and elevator operators in underground mines.
The wireless link using 2.4GHz radios eliminates the need to install costly, leaky feeder cable or hardwired connections to the surface.
The data is used to warn the operator if operating limits, MSHA or OSHA safety regulations are being exceeded during hoisting of miners and materials.
MaxStream technology was chosen for its ability to withstand extremely harsh environments including falling water, rock particles, dust and mud.
The data path up the mine shaft to the surface contains numerous encroachments on the line of sight and significant attenuation and multipathing on the shaft rock walls.
SafeHoist has been able to successfully transmit data using the 2.4GHz 9600 baud radios, without using repeaters, at distances exceeding 1829m.
SafeHoist's customers use the data to detect and analyse hoisting vibrations and wire rope safety factors.
The real-time wireless link enables customers to initiate preventative action to prevent damage to the hoisting infrastructure caused by rope oscillation and vibrations, which results in significant maintenance costs.
The reliability and range of the MaxStream wireless data link is crucial because if the hoist exceeds the limits, severe injury or death can occur.
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