Ongoing evolution for Booyco proximity detection systems
December 2018
Industrial Wireless
In line with the Mine Health and Safety Act’s regulations on machinery and equipment, the onus is on mines to ensure that their proximity detection systems (PDSs) are ‘fit for purpose’ when it comes to preventing collisions between trackless mobile machines (TMMs) and pedestrians.
This focus on compliance has kept Booyco Electronics at the forefront of technology development, innovating increasingly effective products to enhance safety and asset management on opencast and underground mines. As a pioneer in proximity detection, the company produces a range of solutions including interventions in vehicle operation to help prevent accidents and injury.
The Booyco Electronics PDS warns the pedestrians of an approaching vehicle and alerts the TMM operator that a pedestrian is within dangerous proximity of the vehicle. Using very low frequency (VLF) technology to generate a magnetic field around a vehicle proved to be a breakthrough in underground safety, as the VLF signal could propagate through rock to identify hazards even before they were visible to the pedestrian or operator. Both the pedestrians and drivers carry a personal communication tag which is activated when entering a warning zone around moving machinery.
As the mining regulations have raised the bar in terms of fit for purpose requirements, so Booyco Electronics has evolved its PDS systems to provide feedback into TMM control systems. This is done through the creation of ‘zones’ within the magnetic field which trigger specific actions.
The proven accuracy of the technology can define these zones very precisely. A first zone of safety, for instance, may be 20 metres from the moving vehicle, and is accurate to within 10 centimetres. A receiver and buzzer unit carried by the miner alerts them if they enter a dangerous area, even when out of sight of the vehicle operator, who is then warned if the pedestrian enters a second zone, closer to the vehicle.
Other zones can also be defined in which the pedestrian’s presence will automatically trigger an electrical or mechanical intervention that reduces the vehicle’s speed to a crawl, or even brings it to a complete stop.
Further enhancing the fit for purpose status of these technologies is the Booyco Controller Interface designed to integrate all the deployed sensing systems. The company also has a range of test equipment for the systems and their applications to ensure optimal uptime and safety.
For more information contact Anton Lourens, Booyco Electronics, 086 126 6926, [email protected], www.booyco-electronics.co.za
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