Abstract: A circuit arrangement for controlling a system for a seat comfort function includes at least one actuator with at least one adjusting element and at least one SMA element, wherein the adjusting element can be moved from a first position to a second position. At least one resistance measuring device measures a resistance of the at least one SMA element. At least one driver unit activates the actuator with the at least one SMA element. A control unit controls the driver unit, the driver unit being configured for processing an output signal of the resistance measuring device. The circuit arrangement is configured so that the resistance measuring device and the driver unit are alternatingly operationally connected to the SMA element. Related methods of operation and seats are disclosed.

Abstract: A computer-implemented method for automatically annotating frames of sensor data includes: receiving the frames of sensor data; grouping the frames into a plurality of packets based on at least one condition attribute, wherein the at least one condition attribute describes at least one environment condition that existed while a respective frame of sensor data was being recorded; annotating frames from a first packet using a neural network, wherein the annotating comprises assigning at least one data point to each frame, wherein the first packet comprises frames for which the at least one condition attribute is in a selected value range; selecting a first sample of one or more frames from the first packet and determining a quality measure for data points of the first sample; and ascertaining that the quality measure for the first sample is below a predefined threshold.

Abstract: A circuit arrangement for controlling a system for a seat comfort function includes at least one actuator with at least one adjusting element and at least one SMA element, wherein the adjusting element can be moved from a first position to a second position. At least one resistance measuring device measures a resistance of the at least one SMA element. At least one driver unit activates the actuator with the at least one SMA element. A control unit controls the driver unit, the driver unit being configured for processing an output signal of the resistance measuring device. The circuit arrangement is configured so that the resistance measuring device and the driver unit are alternatingly operationally connected to the SMA element. Related methods of operation and seats are disclosed.