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Positioning System for Pipe Inspection with Aerial Robots Using Time of Flight Sensors

Authors: Perez, M.; Suarez, A.; Heredia, G.; Ollero, A.;

Positioning System for Pipe Inspection with Aerial Robots Using Time of Flight Sensors

Abstract

This paper describes a positioning system for aerial robots consisting of a linear array of time-of-flight (ToF) sensors whose orientation angle is controlled with micro servo, allowing the detection and accurate localization of the contour of a pipe to be inspected. The system, integrated in a hexarotor vehicle, has three operation modes: searching, aligning, and tracking. In the first phase, a scan motion is conducted rotating the servo in a wide range until one of the four ToF sensors of the array detects a close obstacle. Then, the rotation angle is ad-justed to align the array with the normal vector of the surface, tracking actively its contour while providing an estimation of the relative position and orientation. The paper details the design and implementation of the system, the control scheme, the position estimator, and its integration in an aerial robot. Experimental results carried out in test-bench show the performance of the system.

Subjects by Vocabulary

Microsoft Academic Graph classification: Positioning system Computer science Orientation (computer vision) business.industry Tracking (particle physics) Time of flight Position (vector) Obstacle Robot Computer vision Artificial intelligence business Rotation (mathematics) Servo Position sensor

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download
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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downloads
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177