The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. 
the system
We remodeled the RC excavator so that it can be operated in the same manner as a real excavator and proceeded to measure the excavator's state.  The results revealed that it is possible to distinguish whether an expert or non-expert is operating the RC excavator.  We calculated the same indices from the data recorded during excavation with a real excavator and verified that there exists a high correlation between the indices of the RC excavator and those of the real excavator. 
the RC excavator
The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. 
the system
We remodeled the RC excavator so that it can be operated in the same manner as a real excavator and proceeded to measure the excavator's state.  The results revealed that it is possible to distinguish whether an expert or non-expert is operating the RC excavator.  We calculated the same indices from the data recorded during excavation with a real excavator and verified that there exists a high correlation between the indices of the RC excavator and those of the real excavator. 
the RC excavator
The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. 
the system