The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec)
Online ISSN : 2424-3124
2022
Session ID : 2P2-R03
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Estimation of radiation source distribution by coarse-to-fine search with multiple robots
*Yosuke SUZUKIYusuke TAMURAYasuhisa HIRATA
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Abstract

In order to decommission the Fukushima Daiichi Nuclear Power Plant, we have developed a method to estimate the radiation source distribution accurately by searching the map in a limited time. In the proposed method, multiple robots estimate the radiation source distribution by the coarse-to-fine search. The coarse-to-fine search is to estimate the distribution by coarse search of the map, and then to search finely the high radiation source area based on the estimation. As a result of examining the efficiency of the search by multiple robots, the search time was only 1.5% compared to the case that the map was completely divided equally. As a result of estimating the distribution of radiation source with and without the coarse-to-fine search, the coarse-to-fine search is more accurate.

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© 2022 The Japan Society of Mechanical Engineers
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