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Dead-reckoning sensor system and tracking algorithm for 3-D pipeline mapping
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DOI：10.1016/j.mechatronics.2009.11.009.png)
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A dead-reckoning sensor system and a tracking algorithm for 3-D pipeline mapping are proposed for a tap water pipeline for which the diameter is small and the inner surface is rough due to pipe scales The goals of this study ale to overcome the performance limitations of small and low-grade sensors by combining various sensors with complementary functions and achieve robustness against a severe environment A dead-reckoning sensor system consists of a small, low-cost micro electromechanical system inertial measurement unit (MEMS IMU) and an optical navigation sensor (used in laser mice). A tracking algorithm consists of a multi-rate extended Kalman filter (EKE) to fuse redundant and complementary data from the MEMS IMU and the optical navigation sensor and a geometry compensation method to reduce position estimation error using the end point of the pipeline. Two sets of experimental data have been obtained by driving a radio-controlled car equipped with the sensor system in a 3-D pipeline and on asphalt pavement. Our study can be used to estimate the path of a 3-D pipeline or mobile robots (C) 2009 Elsevier Ltd. All rights reserved
Keyword:
3-D pipeline mapping
Dead reckoning
Multi-sensor fusion
Extended Kalman filter
Optical navigation sensor
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