Abstract: The invention relates to a device (80) and to a method for navigating and/or guiding the path of a vehicle (200), in particular of a wheelchair, and to a vehicle, in order to achieve increased safety and comfort during operation of the vehicle. The device (80) comprises at least one first sensor, in particular an inertial navigation unit (11), which is designed and arranged so as to detect at least one first body part, in particular an absolute position and/or position and/or rotation and/or translation, of a passenger of the vehicle (200) and to output first sensor signals (S1), and a second sensor, in particular an image-based sensor (21, 22), which is designed and arranged so as to detect at least the first body part of the passenger and/or its features and to output second sensor signals (S2).

Abstract: The invention relates to a special controller for an electric wheelchair (D), comprising an element for inputting commands (input element) and an adapter box (B) for transmitting data of the input element to an input/output module (C) of the electric wheelchair (D), wherein the data of the input element are transmittable wirelessly to the adapter box (B) and the input element comprising a wearable computer system (wearable) (A).

Abstract: The invention relates to a special controller for an electric wheelchair (D), comprising an element for inputting commands (input element) and an adapter box (B) for transmitting data of the input element to an input/output module (C) of the electric wheelchair (D), wherein the data of the input element are transmittable wirelessly to the adapter box (B) and the input element comprising a wearable computer system (wearable) (A).