Abstract: A drive system (2) for moving a height adjustable tabletop (3) of a table (1) comprises a drive device (4) configured to the move the tabletop (3), a drive control device (5) configured to control the drive device (4), an acceleration sensor (6), and an evaluation unit (7). The acceleration sensor (6) is configured to synchronously follow a motion of the tabletop (3), to detect an acceleration of the sensor motion, and to transmit an acceleration signal corresponding to the sensor motion to the evaluation unit (7). The evaluation unit (7) is configured to evaluate the acceleration signal of the acceleration sensor, to determine a presence of a collision by means of acceleration values exceeding a threshold, and to output a collision signal to the drive control device (5) when the presence of a collision is determined.

Abstract: A lifting column (3) for a lifting system (2) of a furniture is provided. The lifting column (3) comprises at least two tube portions (4, 5) displaceable with respect to one another like a telescope, a high-voltage direct-current motor (6) and a transmission (7) for transforming a rotational motion into a linear motion, wherein the high-voltage direct-current motor (6) and the transmission (7) are arranged inside at least one of the at least two tube portions (4, 5) displaceable with respect to one another like a telescope.