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Sensor planning for mobile robot localization based on probabilistic inference using Bayesian network

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2 Author(s)
H. Zhou ; Dept. of Ind. & Syst. Eng., Chuo Univ., Tokyo, Japan ; S. Sakane

We propose a method of sensor planning for mobile robot localization using Bayesian network inference. Since we can model causal relations between situations of the robot's behavior and sensing events as nodes of a Bayesian network, we can use the inference of the network for dealing with uncertainty in sensor planning and thus derive appropriate sensing actions. We employ a multi-layered-behavior architecture for navigation and localization. This architecture effectively combines mapping of local sensor information and the inference via a Bayesian network for sensor planning. The mobile robot recognizes the local sensor patterns for localization and navigation using a learned regression function. Since the environment may change during the navigation and the sensor capability has limitations in the real world, the mobile robot actively gathers sensor information to construct and reconstruct a Bayesian network, then derives an appropriate sensing action which maximizes a utility function based on inference of the reconstructed network. The utility function takes into account belief of the localization and the sensing cost. We have conducted experiments to validate the sensor planning system using a mobile robot simulator

Published in:

Assembly and Task Planning, 2001, Proceedings of the IEEE International Symposium on

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