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Imabuchi, Takashi; Tanifuji, Yuta; Kawabata, Kuniaki
Proceedings of 2022 IEEE/SICE International Symposium on System Integration (SII 2022) (Internet), p.1036 - 1040, 2022/01
This paper describes a method for discrimination of the structures in nuclear power station by deep learning based on 3D point cloud data. In order to promote safe and steady decommissioning work, it is important to estimate and assume the condition in nuclear power station based on the measured sensor data. Especially, the data of the dose rate in the workspace is useful to plan the decommissioning task and, the shape and the material property of the structures in the workspace are required for the dose rate simulation. Shape data can be obtained by such as 3D Scan, however, it is difficult to acquire the material property data of the objects. Therefore, we consider that it is possible that the major material property can be estimated from the category of the structures in nuclear power station. In this paper, we proposed a structure discrimination method by 3D semantic segmentation with 3D point cloud data that consists of labeled points by referring category labels of CAD data of existing nuclear facility. We reported discrimination performance of the proposed method by hold-out validation.
Tanifuji, Yuta; Kawabata, Kuniaki
Proceedings of International Workshop on Nonlinear Circuits, Communications and Signal Processing (NCSP 2020) (Internet), p.246 - 249, 2020/02
Tanifuji, Yuta; Kawabata, Kuniaki; Hanari, Toshihide
Proceedings of 2019 IEEE Region Ten Conference (TENCON 2019) (Internet), p.36 - 40, 2019/10
Tanifuji, Yuta; Kawabata, Kuniaki
Proceedings of International Topical Workshop on Fukushima Decommissioning Research (FDR 2019) (Internet), 4 Pages, 2019/05
Sato, Yuki; Terasaka, Yuta; Miyamura, Hiroko; Kaburagi, Masaaki; Tanifuji, Yuta; Kawabata, Kuniaki; Torii, Tatsuo
Reactor Dosimetry; 16th International Symposium on Reactor Dosimetry (ISRD-16) (ASTM STP 1608), p.428 - 436, 2018/11
Times Cited Count：0 Percentile：0.05Sato, Yuki; Tanifuji, Yuta; Terasaka, Yuta; Usami, Hiroshi; Kaburagi, Masaaki; Kawabata, Kuniaki; Utsugi, Wataru*; Kikuchi, Hiroyuki*; Takahira, Shiro*; Torii, Tatsuo
Journal of Nuclear Science and Technology, 55(9), p.965 - 970, 2018/09
Times Cited Count：15 Percentile：94.46(Nuclear Science & Technology)Sato, Yuki; Terasaka, Yuta; Ozawa, Shingo*; Tanifuji, Yuta; Torii, Tatsuo
Journal of Instrumentation (Internet), 13(8), p.T08011_1 - T08011_10, 2018/08
Times Cited Count：4 Percentile：34.35(Instruments & Instrumentation)Sato, Yuki; Ozawa, Shingo*; Tanifuji, Yuta; Torii, Tatsuo
Journal of Instrumentation (Internet), 13(3), p.P03001_1 - P03001_8, 2018/03
Times Cited Count：5 Percentile：41.67(Instruments & Instrumentation)Kawabata, Kuniaki; Mori, Fumiaki*; Shirasaki, Norihito; Tanifuji, Yuta; Hanari, Toshihide
Proceedings of 2017 IEEE/SICE International Symposium on System Integration (SII 2017), p.450 - 455, 2018/02
This paper describes the test facilities and experimental environments for supporting the decommissioning of the nuclear facilities especially Fukushima Daiichi Nuclear Power Station by remote operation. Naraha Remote Technology Development Center of Japan Atomic Energy Agency is an institution for such purpose. Mock-up staircase, robot testing pool and motion capture arena are already installed and full service and support began from April, 2016. We are also designing and developing some experimental environment for remotely operated robots for nuclear decommissioning. In this paper, we describe current status and development of test facilities of Naraha Remote Technology Development Center, Japan Atomic Energy Agency.
-ray imager mounted on a multicopter droneSato, Yuki; Ozawa, Shingo*; Terasaka, Yuta; Kaburagi, Masaaki; Tanifuji, Yuta; Kawabata, Kuniaki; Miyamura, Hiroko; Izumi, Ryo*; Suzuki, Toshikazu*; Torii, Tatsuo
Journal of Nuclear Science and Technology, 55(1), p.90 - 96, 2018/01
Times Cited Count：24 Percentile：98.2(Nuclear Science & Technology)Sato, Yuki; Terasaka, Yuta; Ozawa, Shingo*; Miyamura, Hiroko; Kaburagi, Masaaki; Tanifuji, Yuta; Kawabata, Kuniaki; Torii, Tatsuo
Journal of Instrumentation (Internet), 12(11), p.C11007_1 - C11007_8, 2017/11
Times Cited Count：11 Percentile：62.65(Instruments & Instrumentation)Tanifuji, Yuta
Genshiryoku Nenkan 2018, p.96 - 97, 2017/10
no abstracts in English
-ray imager mounted on a remotely operated machineSato, Yuki; Kawabata, Kuniaki; Ozawa, Shingo*; Izumi, Ryo*; Kaburagi, Masaaki; Tanifuji, Yuta; Terasaka, Yuta; Miyamura, Hiroko; Kawamura, Takuma; Suzuki, Toshikazu*; et al.
IFAC-PapersOnLine, 50(1), p.1062 - 1066, 2017/07
Times Cited Count：2 Percentile：67.06Kawabata, Kuniaki; Tanifuji, Yuta; Mori, Fumiaki; Shirasaki, Norihito
Proceedings of 2017 International Congress on Advances in Nuclear Power Plants (ICAPP 2017) (CD-ROM), 4 Pages, 2017/04
This paper describes to develop test methods for evaluation of remotely operated robots and operator proficiency for nuclear emergency response and decommissioning tasks. We summarized representative robot's behaviors in the actual operations by the time analysis approach. We also examined environmental factors from the view point of the operation efficiency. Based on these examinations, we currently design some modules of the field for testing remotely operated machines. The approach and progress of the test method development are reported.
Kawabata, Kuniaki; Tsuchida, Yoshihiro; Tanifuji, Yuta; Kawatsuma, Shinji; Torii, Tatsuo
no journal, ,
Tanifuji, Yuta; Shirasaki, Norihito; Mori, Fumiaki; Yamada, Taichi; Tsuchida, Yoshihiro; Kawabata, Kuniaki; Torii, Tatsuo; Kawatsuma, Shinji
no journal, ,
no abstracts in English
Kawatsuma, Shinji; Kawabata, Kuniaki; Tsuchida, Yoshihiro; Tanifuji, Yuta
no journal, ,
Many robots had been deployed in the stage of emergency response for Fukushima Daiichi Nuclear Power Plants accidents. Preliminary Analysis has been done on the robots deployed during the stage of the emergency response for Fukushima Daiichi Nuclear Power Plants, in order to identify issues to be considered.
Tanifuji, Yuta; Shirasaki, Norihito; Mori, Fumiaki; Kawabata, Kuniaki
no journal, ,
This paper describes the efforts and the state of these efforts to develop test methods for evaluation of remotely operated robots. Because the radiation levels are high inside the reactor buildings at Fukushima Daiichi it is difficult for humans to work in them and remotely controlled robots must be used to do much of the decommissioning work. To select the robots for the different decommissioning tasks and to determine where the robots should be improved, a test method for analyzing and comparing robot performance is being developed. The approach and progress of the test method development are reported.
Sato, Yuki; Ozawa, Shingo*; Izumi, Ryo*; Terasaka, Yuta; Kaburagi, Masaaki; Miyamura, Hiroko; Kawamura, Takuma; Tanifuji, Yuta; Kawabata, Kuniaki; Suzuki, Toshikazu*; et al.
no journal, ,
no abstracts in English
Kawabata, Kuniaki; Mori, Fumiaki; Tanifuji, Yuta; Shirasaki, Norihito; Hanari, Toshihide
no journal, ,
This paper describes about development of modular style test field for Remotely Operated Mobile Robots. Our motivation is to provide test methods for development of the robots and operator proficiency to contribute decommissioning works of Fukushima Daiichi Nuclear Power Station (FDNPS). We currently design prototypes of modular style test fields based on analysis of emergency response tasks at FDNPS and construct them. Developed prototypes including a pile-shape obstacle that is three mutually perpendicular elements, steps with iron surface, grating floor and so on were reported in this paper. Developed modules are capable of reconfiguring kinds of the test fields by arranging their layout utilizing modular mobile carts.
