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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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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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.
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author2 |
King, Chung-Ta |
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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 |
work_keys_str_mv |
AT chenchuntso yīngyòngshuāngsānzhóujiāsùdùjìgūsuànshuǐpíngfāngxiàngzhīxuánzhuǎn AT chénjùnzuǒ yīngyòngshuāngsānzhóujiāsùdùjìgūsuànshuǐpíngfāngxiàngzhīxuánzhuǎn AT chenchuntso estimatinghorizontalrotationusingdualtriaxialaccelerometers AT chénjùnzuǒ estimatinghorizontalrotationusingdualtriaxialaccelerometers |
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