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An Investigation of Measuring Energy and Power During Walking on Slopes Using Foot Mounted Inertial Magnetic sensors

Oagaz, Hawkar Ali
http://rave.ohiolink.edu/etdc/view?acc_num=miami1501177386277178

Abstract Details

2017, Master of Computer Science, Miami University, Computer Science and Software Engineering.
To more fully immerse users in virtual environments, the use of a natural walking locomotion interface has been shown to be superior in simulating natural feelings. In such systems, simulating sloped areas is more difficult than level ground. In the physical world, navigation over slope requires more energy than level terrain. In the absence of physical slope in the laboratory, this question arises; how can we simulate slopes in a manner that make users consume more energy to go up and down slope? For solving this problem, we propose an approach that uses a small foot-mounted inertial/magnetic sensors. A “Self-Contained Inertial Position Tracking” (SCIPT) system that processes sensor data produces estimates of position, velocity and acceleration of the feet. With these measurements, “total energy” consumed by the user is calculated. The relationship between “total energy need” to ascend or descend any slopes and instantaneous measures of “total energy consumed” by the user controls how quickly the user is able to navigate virtual slopes. By manipulating this relationship we can force the user to walk in a particular way. For steep inclines, the user has to walk faster, further, and/or lift up their feet higher to match the effort required on real slopes. Our data have shown the kinetic energy is calculated successfully. The kinetic energy estimates enabled measurement of increased effort associated with walking faster or further. Potential energy estimates were inconsistent due to the inability of the SCIPT systems to accurately estimate step height. Thus, the greater effort associated with higher steps could not be measured.
Eric Bachmann (Advisor)
Eric Hodgson (Committee Member)
Mark Walsh (Committee Member)
44 p.
Computer Science
virtual reality; simulating slope; total mechanical energy; inertial magnetic sensor

Recommended Citations

Citations

  • Oagaz, H. A. (2017). An Investigation of Measuring Energy and Power During Walking on Slopes Using Foot Mounted Inertial Magnetic sensors [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1501177386277178

    APA Style (7th edition)

  • Oagaz, Hawkar. An Investigation of Measuring Energy and Power During Walking on Slopes Using Foot Mounted Inertial Magnetic sensors . 2017. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1501177386277178.

    MLA Style (8th edition)

  • Oagaz, Hawkar. "An Investigation of Measuring Energy and Power During Walking on Slopes Using Foot Mounted Inertial Magnetic sensors ." Master's thesis, Miami University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1501177386277178

    Chicago Manual of Style (17th edition)

miami1501177386277178
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© 2017, all rights reserved.
This open access ETD is published by Miami University and OhioLINK.