Engineering & Mining Journal

JUL 2018

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COLLISION AVOIDANCE 38 E&MJ • JULY 2018 set," Kritter said. Proximity and criticality determine the urgency of the alarm. When a pedestrian enters a zone, both the pedestrian and machine operator re- ceive alarms. The machine operator will first receive a visual indicator on an in-cab display that gives the general proximity and di- rection of the pedestrian. "The closer you get, we change the visualization of the alarm and then introduce audio alarms," Kritter said. Those alarms are distinguishable from the ones used by CAS to advise of an approaching vehicle or the nearness of a structure. A pedestrian triggers a dif- ferent color code and a different alarm, Bayuelo said. Plus, "there is a windshield sticker that tells you that orange is a vi- sual alarm for a person, so they can truly distinguish," he said. The pedestrian's tag will vibrate at the exact time the operator receives the alarm. The pedestrian "may not hear the alarm because it is a noisy environment or he is wearing ear protection," Kritter said. "That is why we have a vibrational alarm." Personal Alert can be set up and calibrated to trigger LED bulbs on the pedetrian's safety vest. "It will flash so a person can be highly visible to the ma- chine operator," Kritter said. Hexagon literature reported Personal Alert can determine "a pedestrian's dis- tance and position within 5 centimeters." It is able to detect when a "person is get- ting into the cab and is now the driver," Kritter said. The alarm is then automati- cally muted. "When he is inside the cab but is going out, it is activated again," Kritter said. Through CAS, the data generated by Personal Alert is funneled to a control room server for processing and analy- sis for trends and process improvement purposes. "Of course, it will also provide enforcement opportunities created with our reporting functionality," Kritter said. "It will allow the customer to actually see what is going on and adapt the pro- cedures; and the goal is to increase the overall safety and prevent incidents." The release garnered a "good response from the market," Kritter said, with quick adoption by a large mine in South Africa that has provided the company with "very positive feedback." Mining sites there with a risk level above a certain threshold are mandat- ed to have collision avoidance systems, Bayuelo said. "So, this is deployed in ev- ery single vehicle," he said. The miner is particularly interested in using the tech- All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the U.S. and elsewhere. ® = registered in the U.S. Patent and Trademark Office. © 2018 Henkel Corporation. All rights reserved. 1017341 (4/18) To locate a Henkel Certified Applicator visit: or call 1-800-LOCTITE (562.8483) Whatever You Rebuild, Repair and Protect…. Find the Right Solution LOCTITE ® Protective Coatings and Compounds restore worn surfaces and extend the life of new and existing equipment. These products: • Increase efficiency • Save costs by avoiding part replacement and reducing spare-part inventories • Protect parts against abrasion, erosion, chemical attack and corrosion Restoring and Improving the Performance of: • Pumps • Chutes • Cyclones • Fans • Exhausters • Conveyors/Augers • Centrifuges • Dust Collectors Above, the Personal Alert tag can fit into a pocket or be attached to a helmet or belt. (Photo: Hexagon Mining)

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