Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Detection of simulated fukushima daichii fuel debris using a remotely operated vehicle at the naraha test facility
AU - Nancekievill, M.
AU - Espinosa, J.
AU - Watson, S.
AU - Lennox, B.
AU - Jones, A.
AU - Joyce, M.J.
AU - Katakura, J.-I.
AU - Okumura, K.
AU - Kamada, S.
AU - Katoh, M.
AU - Nishimura, K.
N1 - Export Date: 7 November 2019
PY - 2019/10/22
Y1 - 2019/10/22
N2 - The use of robotics in harsh environments, such as nuclear decommissioning, has increased in recent years. Environments such as the Fukushima Daiichi accident site from 2011 and the Sellafield legacy ponds highlight the need for robotic systems capable of deployment in hazardous environments unsafe for human workers. To characterise these environments, it is important to develop robust and accurate localization systems that can be combined with mapping techniques to create 3D reconstructions of the unknown environment. This paper describes the development and experimental verification of a localization system for an underwater robot, which enabled the collection of sonar data to create 3D images of submerged simulated fuel debris. The system was demonstrated at the Naraha test facility, Fukushima prefecture, Japan. Using a camera with a bird’s-eye view of the simulated primary containment vessel, the 3D position and attitude of the robot was obtained using coloured LED markers (active markers) on the robot, landmarks on the test-rig (passive markers), and a depth sensor on the robot. The successful reconstruction of a 3D image has been created through use of a robot operating system (ROS) node in real-time.
AB - The use of robotics in harsh environments, such as nuclear decommissioning, has increased in recent years. Environments such as the Fukushima Daiichi accident site from 2011 and the Sellafield legacy ponds highlight the need for robotic systems capable of deployment in hazardous environments unsafe for human workers. To characterise these environments, it is important to develop robust and accurate localization systems that can be combined with mapping techniques to create 3D reconstructions of the unknown environment. This paper describes the development and experimental verification of a localization system for an underwater robot, which enabled the collection of sonar data to create 3D images of submerged simulated fuel debris. The system was demonstrated at the Naraha test facility, Fukushima prefecture, Japan. Using a camera with a bird’s-eye view of the simulated primary containment vessel, the 3D position and attitude of the robot was obtained using coloured LED markers (active markers) on the robot, landmarks on the test-rig (passive markers), and a depth sensor on the robot. The successful reconstruction of a 3D image has been created through use of a robot operating system (ROS) node in real-time.
KW - robotics
KW - nuclear characterization
KW - underwater
KW - submersible
KW - ROV
KW - 3D reconstruction
KW - mapping
KW - localization
KW - vision
U2 - 10.3390/s19204602
DO - 10.3390/s19204602
M3 - Journal article
VL - 19
JO - Sensors
JF - Sensors
SN - 1424-8220
IS - 20
M1 - 4602
ER -