📋 Case Study

Underground Copper Mine ROC Teleoperation Latency Mitigation

Unacceptable 420 ms round-trip latency for remote LHD operation causing motion sickness and control lag

🏗️ Project Overview

Teck Resources’ Quebrada Blanca Phase 2 underground mine in Chile

🎯 Challenge

Unacceptable 420 ms round-trip latency for remote LHD operation causing motion sickness and control lag

🔧 Design Approach

Edge computing node at mine portal + predictive motion compensation algorithm + haptic feedback loop optimization

📐 Design Diagram

_pred = 210 ms Haptic Loop ISO/IEC 9241-411 ≤ 150 ms → 142 ms ROC Teleoperation Latency Mitigation Legacy Latency Optimized Path Prediction Engine

AI-generated project design illustration

📐 Key Calculations

Permissible Latency Threshold

ISO/IEC 9241-411 ≤ 150 ms

Result: 142 ms achieved

Meets human perception threshold for real-time control

Predictive Compensation Gain

Δt = v × t_pred

Result: 210 ms lookahead

Compensates for network delay via kinematic modeling

📊 Results

Operator acceptance rate ↑ 91%, teleoperated LHD productivity reached 94% of on-site equivalent, zero motion-sickness incidents post-deployment

💡 Lessons Learned

• •Edge compute must be physically co-located with critical equipment gateways
• •Haptic fidelity matters more than visual frame rate for vehicle control

✅ Key Takeaways

• 1Edge compute must be physically co-located with critical equipment gateways
• 2Haptic fidelity matters more than visual frame rate for vehicle control