Velocity

2013

NovAtel's Annual Journal of GNSS Technology Solutions and Innovation

Issue link: http://velocitymagazine.epubxp.com/i/164724

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GNSS-Aided Mining the operator stops the drill with the two cursors aligned as closely as possible before simply pressing a button to drill. The system handles any of the various maneuvers required in drilling. These include raising the drill onto its corner jacks and leveling it, lowering the drill bit to detect the elevation of the surface, "collaring the hole" (a technique used to stabilize the borehole during drilling), backing out and re-drilling to clear any clogs, retracting the drill steel and drill bit once the hole is completed, and lowering the drill off of the jacks for tramming—that is, relocation of equipment between holes. While drilling, the system records the precise position of the hole, its exact elevation, and foot-byfoot readings on the amount of required drilling force. This data reveals the geotechnical information about the rock being drilled, which can then be used to design blast patterns in the future. By removing variables that might otherwise be introduced by operators, the system maximizes production quantity and quality. The system also optimizes the use of human resources, especially at remote mines where attracting the necessary semi-skilled talent is difficult. "ARDVARC can be installed on almost any make/model of surface blast hole drill," Flan32 velocity 2013 ders sales manager Jim Elkins says, another plus for Flanders customers because most mines operate more than one type of drill. The ARDVARC system monitors hole profile data and hole quality and integrity. The system also tracks production and records and builds reports for immediate display at the control center. Benefits of Automation NovAtel's GNSS receivers are critical components of Flanders' ARDVARC system. Flanders' system can perform all drill functions up to and including full autonomy for major efficiency and safety improvements. The ARDVARC control center allows monitoring of up to five GNSS-guided drills. The control center operator directs drill movements by creating waypoints on the blast-pattern map that are transmitted via radio to update motion files in the drill's system. The machine's GNSS system guides drills to the intended positions as defined by the blast plan. The system provides Flanders customers with several benefits. Key maintenance points are constantly monitored and alarmed to provide near instantaneous data. Drills controlled by the system minimize inefficient tramming by mov- For more Solutions visit http:/ /www.novatel.com

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