TY - GEN
T1 - Unified motion planning method using random network and gradient method for multifunctional underwater robots
AU - Shiraishi, Koichiro
AU - Kimura, Hajime
PY - 2009/12/1
Y1 - 2009/12/1
N2 - This paper deals with motion planning for a multifunctional underwater robot that can perform various tasks such as swimming, walking and grasping objects. The authors have developed a unified motion planning method that can generate motion planning for a variety of movement using a single algorithm. Under this method, motion planning problems are modeled as finite-horizon Markov decision processes, and optimum motion planning is achieved by dynamic programming. However conventional dynamic programming is sometimes considered to have limited applicability because of "the curse of dimensionality." To avoid this issue, we propose two efficient approaches. One is an application a random network as a state transition network to suppress the explosion in the number of states. The other is a modification using a gradient method to improve the found motion in the random network. The effectiveness of the proposed method is demonstrated through numerical simulations involving two types of tasks for multifunctional robots. One is a reaching task, and the other is a thrust force generation task.
AB - This paper deals with motion planning for a multifunctional underwater robot that can perform various tasks such as swimming, walking and grasping objects. The authors have developed a unified motion planning method that can generate motion planning for a variety of movement using a single algorithm. Under this method, motion planning problems are modeled as finite-horizon Markov decision processes, and optimum motion planning is achieved by dynamic programming. However conventional dynamic programming is sometimes considered to have limited applicability because of "the curse of dimensionality." To avoid this issue, we propose two efficient approaches. One is an application a random network as a state transition network to suppress the explosion in the number of states. The other is a modification using a gradient method to improve the found motion in the random network. The effectiveness of the proposed method is demonstrated through numerical simulations involving two types of tasks for multifunctional robots. One is a reaching task, and the other is a thrust force generation task.
UR - http://www.scopus.com/inward/record.url?scp=77951117637&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:77951117637
SN - 9784907764333
T3 - ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings
SP - 3880
EP - 3885
BT - ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings
T2 - ICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009
Y2 - 18 August 2009 through 21 August 2009
ER -