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Sensors 2017, 17(5), 948; doi:10.3390/s17050948

Real-Time Telemetry System for Monitoring Motion of Ships Based on Inertial Sensors

1
Centro Universitario de la Defensa (CUD), Escuela Naval Militar (ENM), Plaza de España s/n, 36920 Marín, Pontevedra, Spain
2
Departamento de Teoría de la Señal y Comunicaciones, Universidad de Vigo, Campus Universitario Lagoas-Marcosende, 36310 Vigo, Pontevedra, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 15 February 2017 / Revised: 21 April 2017 / Accepted: 21 April 2017 / Published: 25 April 2017
(This article belongs to the Section Physical Sensors)

Abstract

A telemetry system for real-time monitoring of the motions, position, speed and course of a ship at sea is presented in this work. The system, conceived as a subsystem of a radar cross-section measurement unit, could also be used in other applications as ships dynamics characterization, on-board cranes, antenna stabilizers, etc. This system was designed to be stand-alone, reliable, easy to deploy, low-cost and free of requirements related to stabilization procedures. In order to achieve such a unique combination of functionalities, we have developed a telemetry system based on redundant inertial and magnetic sensors and GPS (Global Positioning System) measurements. It provides a proper data storage and also has real-time radio data transmission capabilities to an on-shore station. The output of the system can be used either for on-line or off-line processing. Additionally, the system uses dual technologies and COTS (Commercial Off-The-Shelf) components. Motion-positioning measurements and radio data link tests were successfully carried out in several ships of the Spanish Navy, proving the compliance with the design targets and validating our telemetry system. View Full-Text
Keywords: Inertial Measurement System (IMU); Inverse Synthetic Aperture Radar (ISAR); radar imaging; telemetry; radio data link Inertial Measurement System (IMU); Inverse Synthetic Aperture Radar (ISAR); radar imaging; telemetry; radio data link
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Núñez, J.M.; Araújo, M.G.; García-Tuñón, I. Real-Time Telemetry System for Monitoring Motion of Ships Based on Inertial Sensors. Sensors 2017, 17, 948.

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