FIELD: physics.
SUBSTANCE: system comprises a first device, which includes a first orientation measurement unit configured to measure the orientation of the first device relative to the Earth, a second device configured to be worn by a user on body parts, the second device including a second orientation measurement unit configured to measure the orientation of the second device relative to the Earth. System also includes a processing unit configured to calculate the orientation of the first device relative to the second device by comparing the measured orientation of the first device relative to the Earth with the measured orientation of the second device relative to the Earth.
EFFECT: invention relates to a system for determining orientation of a first device relative to a user.
7 cl, 5 dwg
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