WEI Ming-sheng, TONG Min-ming, ZI Bin, XIA Jing, LU Yang. Adaptive localization method based on wireless magnet sensors for pipeline robots[J]. Editorial Office of Optics and Precision Engineering, 2012,(4): 772-781
WEI Ming-sheng, TONG Min-ming, ZI Bin, XIA Jing, LU Yang. Adaptive localization method based on wireless magnet sensors for pipeline robots[J]. Editorial Office of Optics and Precision Engineering, 2012,(4): 772-781 DOI: 10.3788/OPE.20122004.0772.
Adaptive localization method based on wireless magnet sensors for pipeline robots
For tracking and locating robots in the pipeline inspection accurately
a wireless adaptive location model was presented to realize the 3D position of robots without the geometrical sizes of pipelines and electromagnetic parameters of ambient medium. Firstly
extremely low frequency electromagnetic fields of pipelines were described by a magnetic dipole model. Then
an adaptive antenna positioning model based on six sensors was proposed and electromagnetic transmitter and receiver circuits were designed.Based on the model
a linear equation containing six unknown numbers was derived and three kinds of algorithms were used to analyze and simulate the equation. Finally
engineering experiments were performed on the pipes with different thicknesses and burial depths. The experiment on a pipe wall thickness of 5.74 mm and burried deep from 0.8 to 0.2 m shows that the average position error is 18.7 cm
which has been decreased by 3.4 cm compared with that of the original model. The results can satisfy the requirements of systems for non-contact
real time and adaptive location.
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