Fusion of inertial and magnetic sensors for 3D position and orientation estimation
| Autor: | Gerhard Staude, T. Felderhoff, P. Tadayon, Andreas Knopp |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Inertial frame of reference Magnetometer Movement Posture 0206 medical engineering Magnetometry Context (language use) 02 engineering and technology law.invention Inertial measurement unit Position (vector) law 0202 electrical engineering electronic engineering information engineering medicine Electronic engineering Humans Computer Simulation Computer vision Monitoring Physiologic business.industry Orientation (computer vision) 020208 electrical & electronic engineering Torso 020601 biomedical engineering Power (physics) Magnetic Fields medicine.anatomical_structure Artificial intelligence business Head Algorithms |
| Zdroj: | EMBC |
| Popis: | This paper presents a new method for 3D position and orientation estimation based on the magnetic field generated by a single coil and the fusion of low power magnetometers and inertial sensors. The fixed spatial relationship between the sensors is exploited to solve the ambiguity problem that occurs when only a single coil is employed. In this context a new positioning algorithm is developed and verified by simulations. Using a single coil instead of three coils as common in conventional magnetic field based systems brings a benefit both regarding power consumption and construction size. Moreover, as the proposed system requires no line of sight between source and sensors, it is ideally suited for portable, location-independent applications such as the mobile assessment of a persons' head to torso posture and movement e.g. for the purpose of examining causes for chronic pain in the cervical spine area under conditions of daily life. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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