Marine Electronic Roll Indicator and Recorder Based on ARM Cortex-M3
ZHENG Zhenyu
ZHANG Yu
ZHU Shijie
Abstract：In order to measure ship's buoyancy state and the period of sway ,the marine electronic roll indicator and re-corder is developed based on 32-bit MCU which has an ARM Cortex-M3 core .The attitude measurement unit is built by MEMs inertial component and magnetism sensors and the rotation vector attitude update algorithm is adopted .The period of ship sway is calculated by FFT period measure method on frequency domain .SD card memory unit and file system of FATFS Module the system can save the calculate data .Measurement tests verify that the algorithm achieve the precision of level atti-tude of 0 .1° in 2 hours and the precision of period measurement of 0 .1s .The system can work steadily and continuously for about 30 days with the advantage of low power ,real-time and low cost .Therefore the system has the engineer application values .
Keywords：ship roll indicateCortex-M3MEMs inertial sensor
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-41,164 )