應用雙三軸加速度計估算水平方向之旋轉

碩士 === 國立清華大學 === 資訊系統與應用研究所 === 99 === Accelerometers nowadays have been widely used in mobile devices. Many applications on mobile devices rely on accelerometers for information of the motions, tilt, and states of the devices to provide advanced and interesting functionalities. Most accelerometers...

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Main Authors: Chen, Chun-Tso, 陳俊佐
Other Authors: King, Chung-Ta
Format: Others
Language:en_US
Published: 2010
Online Access:http://ndltd.ncl.edu.tw/handle/73479609307903732446
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spelling ndltd-TW-099NTHU53940012015-10-13T19:06:37Z http://ndltd.ncl.edu.tw/handle/73479609307903732446 應用雙三軸加速度計估算水平方向之旋轉 Estimating Horizontal Rotation Using Dual Triaxial Accelerometers Chen, Chun-Tso 陳俊佐 碩士 國立清華大學 資訊系統與應用研究所 99 Accelerometers nowadays have been widely used in mobile devices. Many applications on mobile devices rely on accelerometers for information of the motions, tilt, and states of the devices to provide advanced and interesting functionalities. Most accelerometers are used in conjunction with the gravity, which provides an absolution reference for the accelerated variations of the accelerometers. Without gravitational information, applications need extra devices like magnetic sensors, gyroscopes, and GPS to measure the horizontal rotation. However, these additional devices are much bigger, more expensive, and more easily affected by environment, which are unsuitable for mobile devices. To overcome these constraints, in this thesis, we propose a simple and low-cost method to estimate horizontal rotations of mobile devices by using dual triaxial accelerometers separated by a known and fixed distance. With two triaxial accelerometers, acceleration signals were obtained to estimate the angular displacement by physical equations. Experiments were conducted to evaluate and compare the accuracy of our approach and that of a magnetic sensor. King, Chung-Ta 金仲達 2010 學位論文 ; thesis 32 en_US
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description 碩士 === 國立清華大學 === 資訊系統與應用研究所 === 99 === Accelerometers nowadays have been widely used in mobile devices. Many applications on mobile devices rely on accelerometers for information of the motions, tilt, and states of the devices to provide advanced and interesting functionalities. Most accelerometers are used in conjunction with the gravity, which provides an absolution reference for the accelerated variations of the accelerometers. Without gravitational information, applications need extra devices like magnetic sensors, gyroscopes, and GPS to measure the horizontal rotation. However, these additional devices are much bigger, more expensive, and more easily affected by environment, which are unsuitable for mobile devices. To overcome these constraints, in this thesis, we propose a simple and low-cost method to estimate horizontal rotations of mobile devices by using dual triaxial accelerometers separated by a known and fixed distance. With two triaxial accelerometers, acceleration signals were obtained to estimate the angular displacement by physical equations. Experiments were conducted to evaluate and compare the accuracy of our approach and that of a magnetic sensor.
author2 King, Chung-Ta
author_facet King, Chung-Ta
Chen, Chun-Tso
陳俊佐
author Chen, Chun-Tso
陳俊佐
spellingShingle Chen, Chun-Tso
陳俊佐
應用雙三軸加速度計估算水平方向之旋轉
author_sort Chen, Chun-Tso
title 應用雙三軸加速度計估算水平方向之旋轉
title_short 應用雙三軸加速度計估算水平方向之旋轉
title_full 應用雙三軸加速度計估算水平方向之旋轉
title_fullStr 應用雙三軸加速度計估算水平方向之旋轉
title_full_unstemmed 應用雙三軸加速度計估算水平方向之旋轉
title_sort 應用雙三軸加速度計估算水平方向之旋轉
publishDate 2010
url http://ndltd.ncl.edu.tw/handle/73479609307903732446
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AT chenchuntso estimatinghorizontalrotationusingdualtriaxialaccelerometers
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