| The navigation and localization technology of mobile robot is one of the key technologys, and becoming more and more important. Mobile robot navigation and localization technology in the unknown environment is an emerging robot research direction. The Mobile robot localization needs sensors to detect environmental information, single sensor has limitation and the multiple sensors are needed for robot localization. The integration of multiple sensors provides an effective technical solution for robots' working in the complex, dynamic, uncertain or unknown environment.The multiple sensors information fusion technology is described in this thesis. The theory and practice of mobile robot localization are combined in the discussion. An information fusion method is proposed for multiple sensors, which fusion unit is the combinations of navigation and localization sensors, and fusion structure is the federated Kalman filter.Firstly, the development and key technology of mobile robot in China and abroad are introduced. The navigation and localization technology and the applications of the multiple sensors information fusion in mobile robot are approached. A new method is also proposed for the mobile robot navigation and localization system.The sensor and the sensor system are analyzed for the mobile robot navigation and localization. The method of data focuses is mainly studied for the mobile robot navigation and localization. A multi data fusion algorithm is designed based on the federated Kalman filter. The multiple sensors system is consisted by inertial navigation system, GPS, odometer, electronic compass and map matching system.Finally, a simplified mobile robot system is designed and made, and the physical experiment of multiple sensors is finished based on the "Multiple Sensors Data Acquisition Platform", the validity of the algorithm.is verified by simulation and analysis of measured data. |
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