Under the umbrella of the CM2010 ACARP-funded project, CSIRO researchers aim to develop the navigation technology necessary to demonstrate a remotely supervised, self-steering continuous miner.
The technology will be part of the CM2010 project’s larger safety and efficiency goals in roadway development. The automation component will also provide real-time machine position and operational information essential for the integration of bolting, mesh and haulage systems that are being independently developed within the CM2010 initiative.
Most recently the CSIRO researchers carried out benchmark testing of the latest inertial navigation technology on a calibrated rotary table.
CSIRO principal research engineer David Reid told International Longwall News benchmarking was carried out on the pointing accuracy of different manufacturers’ navigation systems. The tests were designed to identify subtle differences between units which could have an effect on mining guidance applications.
“The testing will be used as a reference for assessing achievable performance, especially when combined with the additional aiding technologies which we are developing,” Reid said.
Initial testing of CSIRO’s inertial test track has confirmed the need for additional aiding technologies to achieve the required performance levels for continuous miner automation.
The next stage of the project is to test the technology on the Phoenix – a remotely controlled skid steer vehicle which provides a mobile platform with motion/dynamics that closely resemble the CM but still under controlled experimental conditions.
“Phoenix will allow us to conveniently evaluate the aided-navigation technologies that we are developing,” Reid said.
While the desire for a remotely supervised continuous miner is primarily to improve development productivity, the technology might also remove the threat of an outburst or inrush during mining, and may potentially open up access to reserves previously considered unmineable.
A remotely supervised continuous miner could potentially improve operator health and safety by reducing exposure to dust, noise and heat and, with automation of bolting operations, eliminating repetitive strain injuries associated with this operation.
It is also expected that automation of bolting operations will lead to improved bolting standards, and therefore more consistent and reliable strata support measures.
