Robert Boschgmbh

Markus Dihlmann

Juergen Gut

Rudolf Bichler

Amithash Kankanallu Jagadish

A method for determining the spatial orientation of an object encompasses the steps of detecting a rotational speed of the object with the aid of a first sensor; determining an estimated value for the spatial orientation of the object based on the detected rotational speed and a starting value for the spatial orientation; detecting the acceleration aacting on the object with the aid of a second sensor; determining the acceleration component of the detected acceleration aresulting from the rotational movement, based on the detected rotational speed and a given distance of the second sensor from the rotational axis of the rotational movement; determining the acceleration component aof the detected acceleration aresulting from the gravity; and correcting the estimated value for the spatial orientation, taking into account the acceleration component aresulting from the gravity.

Determination of a spatial orientation

A method for displaying pieces of visual information as a function of a spatial orientation of a portable device equipped with a first sensor for detecting orientation information and with an acceleration sensor, includes: estimating the spatial orientation based on the orientation information; ascertaining, based on sensor measurement data of the acceleration sensor, whether the device is in an idle phase or a movement phase; ascertaining an error of the estimation based on the orientation estimation ascertained in the idle phase and on the sensor measurement data of the acceleration sensor detected in the idle phase; using the orientation estimation unchanged in the idle phase for the display; successively correcting the error for the orientation estimation in a subsequent movement phase; and using the corrected estimation for the display in the movement phase.

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Stuttgart, Germany

Markus Dihlmann