Mining Truck Lane Arbitration for Safe Passing on Narrow Mine Roads
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Solution Overview
Problem
The operation management of surface mines is complex, and the implementation of unmanned transport systems faces challenges due to narrow and winding mine roads, making it difficult to ensure safety and efficiency, especially when planning dual lanes results in insufficient safety distances and poor meeting processes.
Innovation Solution
A traffic control system for mining trucks comprising a map management server, route planning server, and traffic control server that draw and manage mine maps with dual and single lanes, plan trajectories, and arbitrate lane access based on occupancy and safety thresholds to improve meeting efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dual lanes are planned for mining trucks to improve transport efficiency, then productivity increases, but the safety distance becomes insufficient due to narrow road widths
Solution Approach 1:
The system dynamically adjusts lane configurations between dual-lane and single-lane modes based on real-time conditions. The traffic control server dynamically switches between auxiliary lane usage and trunk lane usage, adapting the road capacity to current traffic and safety requirements, thus resolving the contradiction between maintaining safety distances and ensuring transport efficiency.
Solution Approach 2:
The system changes the operational parameters of the lanes by introducing auxiliary lanes that can be activated or deactivated based on safety conditions. When safety distances are sufficient, auxiliary lanes are used to maintain dual-lane operation for high productivity. When safety distances become insufficient, the system transitions to single-lane operation, effectively changing the lane configuration parameter to prioritize safety.
2Productivity
If mining trucks travel at high speed on narrow roads to improve efficiency, then productivity increases, but the meeting process becomes unsafe
Solution Approach 1:
The traffic control server acts as an intermediary that coordinates the meeting processes between opposing mining trucks. It monitors the positions and speeds of trucks, calculates safe meeting parameters, and issues control commands to ensure that high-speed travel does not compromise safety during head-on encounters, thus resolving the contradiction between speed and safety.
Solution Approach 2:
The system implements continuous feedback loops where the traffic control server receives real-time position and speed data from mining trucks, evaluates safety conditions, and adjusts control commands accordingly. This feedback mechanism allows the system to maintain high travel speeds while ensuring safety during meeting processes by dynamically adjusting speed limits and lane assignments based on current traffic conditions.
3Reliability
If auxiliary lanes are used for meeting processes to improve safety, then reliability increases, but waiting time increases reducing productivity
Solution Approach 1:
The traffic control server performs preliminary actions by pre-calculating optimal meeting points and timing for opposing trucks before they actually meet. It proactively assigns auxiliary lanes and adjusts speeds to ensure safe meeting conditions are already in place, minimizing the need for trucks to wait idle on auxiliary lanes, thus reducing time loss while maintaining safety.
Solution Approach 2:
The system implements periodic action by using auxiliary lanes in a rhythmic, alternating pattern rather than keeping them continuously active. Trucks use auxiliary lanes for brief, periodic meeting maneuvers rather than extended waiting periods, allowing them to return to trunk lanes and maintain higher overall productivity while still ensuring safe meeting processes when needed.
Data Source
AI summary
A traffic control system for mining trucks and a method for same. The traffic control system (100) comprises a map management server (110), configured to draw a mine road into a mine map; a path planning server (120), configured to plan a road node route on the basis of the mine map, and plan a transition route when a mining truck (140) switches lanes during a truck passing process; and a traffic control server (130), configured to store lane states of a plurality of lanes in the mine map, arbitrate a driving permission request of a mining truck (140) on the basis of the lane state of a lane into which the mining truck (140) is about to drive, approve the driving permission request of a mining truck (140) that meets a driving condition, and dynamically update the lane state according to the arbitration result, the lane states comprising an occupied state and an idle state. The traffic control system (100) and the method for same improve the efficiency off truck passing by the mining truck (140) on mine roads.