Abstract: A method for controlling a planar drive system includes controlling a rotor along a control path starting from a first position on a stator module, and determining a sensor pattern for magnetic field sensors of a sensor module. The sensor pattern includes a subset of the magnetic field sensors with at least one of the magnetic field sensors not comprised by the sensor pattern, and an area of the sensor pattern is at least partially covered by the rotor in a position along the control path. The method includes measuring values of the rotor magnetic field with the aid of the magnetic field sensors of the sensor pattern, detecting the rotor, and determining a second position of the rotor based on the measured values. The invention further relates to a planar drive system.

Abstract: A method for controlling a planar drive system includes generating a position allocating function, in an allocation generating step; measuring a plurality of measuring values of the magnetic rotor field by magnetic field sensors for a position of the rotor relative to the stator module, in a magnetic rotor field determining step; applying the position determination function to the plurality of measuring values of the magnetic rotor field of the plurality of magnetic field sensors, in a measuring value analysis step; and determining the position of the rotor relative to the stator module on the basis of the measurements of the magnetic rotor field measured by the plurality of magnetic field sensors and based on the allocations of the position allocating function, in a position determining step. The application further relates to such a planar drive system.

Abstract: A method for detecting optical codes comprises an input image being provided. Optical codes in the input image are detected by generating an output image on the basis of the input image. Within generating the output image, pixels of an area of the input image comprising a part of an optical code are assigned a first intensity in the output image. Within generating the output image, pixels of an area of the input image e.g. comprising no part of an optical code are assigned a second intensity in the output image. Regions of the output image with the first intensity are provided for determining properties of the detected optical codes.

Abstract: A method for detecting optical codes comprises an input image being provided. Optical codes in the input image are detected by generating an output image on the basis of the input image. Within generating the output image, pixels of an area of the input image comprising a part of an optical code are assigned a first intensity in the output image. Within generating the output image, pixels of an area of the input image e.g. comprising no part of an optical code are assigned a second intensity in the output image. Regions of the output image with the first intensity are provided for determining properties of the detected optical codes.