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On the use of low-cost radar networks for collision warning systems aboard dumpers
The use of dumpers is one of the main causes of accidents in construction sites, many of them with fatal consequences. These kinds of work machines have many blind angles that complicate the driving task due to their large size and volume. To guarantee safety conditions is necessary to use automatic aid systems that can detect and locate the different objects and people in a work area. One promising solution is a radar network based on low-cost radar transceivers aboard the dumper. The complete system is specified to operate with a very low false alarm rate to avoid unnecessary stops of the dumper...
Balancing the Pros and Cons of Machine Guarding Technologies
Despite having been introduced in the 1950s, safety mats remain an effective tool in machine guarding programs. The down home American adage, "If it ain't broke, don't fix it," seems like it must date back to colonial times. In fact, the phrase was popularized in the 1970s, but its widespread use makes it seem older than it really is. In that sense, the phrase is a bit like safety mats. Introduced in the 1950s, safety mats became such a common tool in industrial machine guarding that some people believe they date back to the Industrial Revolution. Not quite. Despite the introduction...
MSHA Publishes Proposed Rule to Equip Coal Mine Machines with Protective Technology
On Aug. 31, MSHA published a proposed rule in the Federal Register to require underground coal mines to equip continuous mining machines with proximity detection systems in order to protect miners from becoming crushed, pinned or struck by machinery. http://ehstoday.com/standards/MSHA/msha-proposed-rule-equip-coal-mine-0902/
Mobile Equipment Safety System
Many workplace fatalities and serious injuries occur when workers are struck by or caught in heavy mobile equipment, such as forklifts, log loaders, dump trucks and bulldozers. A key factor is the poor visibility that equipment operators often have, which makes it difficult to see people on the ground. This project developed a wireless system that can detect and issue warnings when a machine approaches workers or certain objects, and shut down or slow the machinery if it gets too close. In year one, the sensor technology was refined, and a prototype of the device was built, installed in a forklift...

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