System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality

We developed a system to evaluate the skill of operating a hydraulic excavator. The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. We remodeled the RC excavator so that it can be operated in the same manner as a real excavator and proceeded to measure the ex...

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Main Authors: Ryota Sekizuka, Masaru Ito, Seiji Saiki, Yoichiro Yamazaki, Yuichi Kurita
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-01-01
Series:Frontiers in Robotics and AI
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/frobt.2019.00142/full
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author Ryota Sekizuka
Masaru Ito
Seiji Saiki
Yoichiro Yamazaki
Yuichi Kurita
author_facet Ryota Sekizuka
Masaru Ito
Seiji Saiki
Yoichiro Yamazaki
Yuichi Kurita
author_sort Ryota Sekizuka
collection DOAJ
description We developed a system to evaluate the skill of operating a hydraulic excavator. The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. 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. To evaluate the skill of operating this system, we calculated several indices from the data recorded during excavation work and compared the indices obtained for expert and non-expert operators. 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. Thus, we confirmed that the indices of the real excavator and those of the simulator exhibited similar trends. This suggests that it is possible to partly evaluate the operation characteristics of a real excavator by using an RC excavator with different dynamics compared with a real excavator.
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spelling doaj.art-010077cbc9c64cfe9a3612195069dab52022-12-22T00:52:23ZengFrontiers Media S.A.Frontiers in Robotics and AI2296-91442020-01-01610.3389/frobt.2019.00142485765System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual RealityRyota Sekizuka0Masaru Ito1Seiji Saiki2Yoichiro Yamazaki3Yuichi Kurita4Graduate School of Engineering, Hiroshima University, Hiroshima, JapanGraduate School of Engineering, Hiroshima University, Hiroshima, JapanKobelco Construction Machinery Co., Ltd., Hiroshima, JapanKobelco Construction Machinery Co., Ltd., Hiroshima, JapanGraduate School of Engineering, Hiroshima University, Hiroshima, JapanWe developed a system to evaluate the skill of operating a hydraulic excavator. The system employs a remotely controlled (RC) excavator and virtual reality (VR) technology. 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. To evaluate the skill of operating this system, we calculated several indices from the data recorded during excavation work and compared the indices obtained for expert and non-expert operators. 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. Thus, we confirmed that the indices of the real excavator and those of the simulator exhibited similar trends. This suggests that it is possible to partly evaluate the operation characteristics of a real excavator by using an RC excavator with different dynamics compared with a real excavator.https://www.frontiersin.org/article/10.3389/frobt.2019.00142/fullskill evaluationvirtual realityconstruction machineremote controlleddynamic time warping
spellingShingle Ryota Sekizuka
Masaru Ito
Seiji Saiki
Yoichiro Yamazaki
Yuichi Kurita
System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
Frontiers in Robotics and AI
skill evaluation
virtual reality
construction machine
remote controlled
dynamic time warping
title System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
title_full System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
title_fullStr System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
title_full_unstemmed System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
title_short System to Evaluate the Skill of Operating Hydraulic Excavators Using a Remote Controlled Excavator and Virtual Reality
title_sort system to evaluate the skill of operating hydraulic excavators using a remote controlled excavator and virtual reality
topic skill evaluation
virtual reality
construction machine
remote controlled
dynamic time warping
url https://www.frontiersin.org/article/10.3389/frobt.2019.00142/full
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