How does advanced automation in underground mining equipment improve operator safety?

Underground mining remains one of the most dangerous working environments of the 21st century. A risk of rockfalls, collision, low visibility and strenuous manual operation is inherent to operating any underground mining machinery. For decades, safety relied heavily on personal protective equipment and operator training-both are crucial but unable to address all hazards alone. The rise of advanced automation is altering this paradigm, with Tuoxing Heavy Machinery drawing on its 30 years of experience in underground trackless equipment to apply automation technologies in ways that move operators out of harm's way. Our TX-series of underground equipment includes smart features designed to improve safety without hindering productivity.

Remote Control Operation for Hazardous Zone Avoidance

The only safe location for an operator is a safe distance from potential hazards. Traditional mining requires operators to remain inside their machines while they operate below unstable ground or alongside weakened walls. Remote operation is changing that. Tuoxing's offer of remote operation for its underground LHDs and trucks removes the operator from these dangerous areas. Remote control does not negate the skill of the operator, it enhances it by enabling the miner to utilize it outside of the direct risks.

Proximity Detection and Collision Avoidance Systems

In narrow drifts, such as intersections or confined, high traffic areas, vehicle collisions can cause not only equipment damage but also worker injuries. A human's response time is insufficient to prevent these accidents altogether. Proximity detection systems offer an automated approach to preventing these accidents. Tuoxing is adding sensor-based technology to our LHDs and underground service vehicles which detects people and objects close to the machine and automatically slows or stops operation before any contact is made. Unlike warning lights and alarms which rely on human interaction, automated technology acts immediately to avoid collision. For any mines that employ both workers on foot and mixed fleets, proximity detection can create safer equipment surroundings.

Teleoperation for Full Shift Protection

For miners who cannot use remote control, for example, when every space inside or outside of the vehicle is potentially unstable or risky, mining teleoperation systems remove the miner from underground environments altogether. Tuoxing enables control of our scooptrams and trucks via surface control rooms equipped with joysticks and screens. A miner sitting in the control room has full awareness of their machine and surroundings, viewing their equipment and mine with cameras and sensors, all while remaining completely isolated from harmful particles and working conditions underground. With tunneling and excavation moving deeper underground and to areas with unpredictable ground stability, teleoperation represents a definitive technological leap toward full operator protection.

Automated Cycle Sequencing for Reduced Operator Fatigue

By reducing unnecessary operator movements and freeing up their attention for awareness of surroundings, automation even increases safety on board machines. Maneuvering underground scooptrams for an entire shift requires full attention to steering, the throttle, and hydraulics, but the fatigue that results from this constant demand can lead to careless mistakes at the end of the day when a miner’s reaction time is slowest. Tuoxing’s automated cycle sequence programming allows operators to initiate multiple actions, such as the lifting of the boom, the tilt of the bucket, and the dumping motion, with only one lever pull. The operator has the task of supervising, not micromanaging, hydraulic operations, and the reduced mental load translates into safer work practices at the end of a shift than at the beginning.

Vision Enhancement and Obstacle Mapping

Poor lighting, water spray and particulate matter all contribute to low visibility in underground mining conditions. A human operator can only see so much, and this limitation, compounded by the need to maneuver in confined, obstructed spaces, can cause operational problems and potential injuries. Multi-camera arrays and sensor fusion systems are added to Tuoxing's underground scalers and trucks and provide a view of areas the operator is unable to see. They generate a real-time map of obstacles around the vehicle, which ensures that the machine's movements, including while moving in reverse or working close to the tunnel walls, are done with full awareness and can prevent accidental impact with ventilation lines or electrical components. When operators can see what they need to, their safety is greatly increased.

Building the Future of Safe Underground Mining

Automation will continue to play a major role in the improvement of underground mining safety and Tuoxing Heavy Machinery plans to lead the way. Our long term plan includes unmanned vehicle operation, the use of 5G to improve remote operation range and functionality, and the development of new energy sources to power the new technologies in all our mining vehicles, including the full range of our electric and diesel scooptrams and trucks as well as underground scalers and service vehicles. Operator safety, first and foremost, will continue to be the cornerstone of our design and engineering process.