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http://dx.doi.org/10.7746/jkros.2021.16.3.232

Tele-Operation System for Excavator using LTE Communication  

Lee, Seung Chol (ROLabs)
Kang, Byoung Hun (Dept. of Mechanical Design Engineering, Korea Polytechnic University)
Publication Information
The Journal of Korea Robotics Society / v.16, no.3, 2021 , pp. 232-237 More about this Journal
Abstract
In this research, a real-time tele-operation system for unmanned excavator using the LTE communication system is suggested. The distance between the operator and the excavator is limitless as long as the LTE communication available. The motion and video data of the excavator is synchronized using the Vehicle Control Unit (VCU) and streamed to the operator for immersion feeling. The video is played on the operator's monitor and the motion data is used to regenerate the excavator movement on the developed master platform. In general, a excavator is tele-operated using RF signal and the maximum distance for direct control is limited to within a hundred meter. In this research, the immersion tele-operation system is suggested for excavator operation within an 100ms time delay using the developed master platform, the VCU and LTE communication. A successful test run of the suggested tele-operation system has already been performed between an operator in Songpa (Seoul) and a excavator in Ansan (Gyeonggi-do) which is approximately 35 km apart.
Keywords
Excavator Tele-Operation; Vehicle Control Unit; LTE Communication;
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