NDLI: Attitude measurement of driver's head based on accelerometer and magnetoresistive sensor

Content Provider	IEEE Xplore Digital Library
Author	Zhao Yan Liman Yang Qi Zheng Yunhua Li
Copyright Year	2011
Description	Author affiliation: School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100191, China (Zhao Yan; Liman Yang; Qi Zheng; Yunhua Li)
Abstract	A head attitudes measurement system based on 3-axis micro-accelerometer and 3-axis micro-magnetoresistive sensor is designed and developed using for thermal imager setup of night-driving vehicle. The three attitude angles, i.e. pitch, roll and yaw, of driver's head are estimated relative to the driving vehicle in real time. In this system, the 3-axis micro-accelerometer detects the gravity field and the 3-axis micro-magnetoresistive sensor detects magnetic field. Euler orientation cosines matrix conversion theory and the relative algorithm are applied to the attitude calculation. Different from the conventional measurement to the earth, the reference coordinate system is mobile vehicle here. For this system, the geomagnetic field will be a disturbance, thus the oriented uniform magnetic field is built by permanent magnets and activity mechanical arms to eliminate the negative effect of the geomagnetic field. Moreover, the kinematical accelerations induced by the vehicle's accelerating, decelerating or vibrating are considered as disturbances, and a dual-layer filter is designed to deal with them. Finally, the experiments on vehicle are carried out, and the three-dimensional attitude angles of the driver's head relative to the driving vehicle are measured. Results prove that this measuring system not only has small size and low cost, but also has quick response and high reliability.
Starting Page	613
Ending Page	617
File Size	276020
Page Count	5
File Format	PDF
ISBN	9781424484515
e-ISBN	9781424484522
DOI	10.1109/FPM.2011.6045836
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Head Magnetic field measurement Attitude 3-axis micro-accelerometer 3-axis micro-magnetoresistive sensor Magnetic heads Magnetic fields Acceleration Vehicles Gravity Oriented uniform magnetic field
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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