Australian Coal Mine Tests RFID's Ability to Prevent Collisions
The recently piloted solution—designed by CSC Australia, and installed by Becker Mining Systems at BHP Billiton's Dendrobium mine, in New South Wales—can also be used to improve productivity.
Sep 14, 2011—The Dendrobium coal mine, located in New South Wales, has completed testing of active RFID tags to provide location data from deep inside its 1-kilometer-long tunnel, and to display that information on screens at the mine's entrance. The solution—designed and architected by Kobus du Plessis, CSC Australia's location-awareness solutions principal consultant—employs 433 MHz active tags and readers provided by Becker Mining Systems, and is designed to provide traffic management within the dark, narrow corridors of underground mines. Specifically, the system provides users with data indicating the number of workers and equipment items located within the mine, as well as the direction in which they are traveling, before new personnel or machinery enter the tunnels.
In addition, the solution enables management to track a vehicle's health and efficiency, and to adjust them accordingly, if necessary. For example, if a truck enters and returns from the tunnels numerous times over the course of several months, gradually losing turnaround time, productivity may begin to drop. Thus, the technology is intended to improve productivity at mine sites, while also increasing driver safety. Since the trial is now complete, the solution is no longer in use, and awaits capital approval from the mine company's management.
Dendrobium, through its parent company, BHP Billiton, has declined to comment regarding the installation. Becker Mining Systems, however, reports that the technology typically results in fewer traffic errors that could lead to near-misses or collisions.
CSC Australia's RFID mining solution spans a decade, covering multiple applications. Since 2003, the technology has been tested and deployed at several Australian mines, not only for tracking personnel, vehicles and equipment within mine shafts, but also for monitoring warehouse employees, machinery and tools aboveground.
Dendrobium, which began its long-wall operations (in which a lengthy wall of coal is mined in a single slice) in 2005, has an annual production capacity of approximately five million tons of coal. About two years ago, Becker Mining Systems installed the solution designed by CSC using Becker's 433 MHz active RFID tags and readers. The tags can be attached to miners' headlamps, as well as to vehicles, transmitting a unique ID number every half-second, says Phil Jones, Becker Mining Systems' general manager. Becker deployed a reader at the entrance to the mine's production area, another at the tunnel entrance and a third halfway into the mine. The company also installed a single LCD screen at the tunnel entrance, to indicate which personnel are inside the tunnel at any given time.
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