Method for detecting a movement system state with reference to a movement of a movement system, which has a platform, which can be moved in at least one degree of freedom in relation to a fixed reference level by means of actuators (3a, 3b, 3c), with - the detection of path signals of the movement system with reference to a movement of the movement system in relation to the reference level by means of path sensors (5a, 5b, 5c) of a first sensor system, - the detection of acceleration signals of the movement system with reference to the movement of the movement system by means of at least one acceleration sensor arranged on the movement system of a second sensor system, and - the calculation of the movement system state with reference to the movement of the movement system depending on the detected path signals and the detected acceleration signals by means of a microprocessor-controlled computing unit, wherein length changes of the actuators of the movement system are detected as path signals by means of path sensors and that the movement system state is calculated depending on movement information of the platform detected from the length changes of the actuators and acceleration information detected from the acceleration signals of the movement system by means of the computing unit, characterized in that the movement information of the platform is calculated from the length changes of the actuators with - a calculation of a movement of the platform by means of the computing unit under the assumption that only one actuator of the movement system is changed in its length depending on its detected length change and the remaining actuators of the movement system do not experience any length change, - repeating the preceding step with every other actuator of the movement system and - calculating the movement information of the platform from the various calculated movements of the respective length change of the actuators by means of the computing unit. - the detection of path signals of the movement system with reference to a movement of the movement system in relation to the reference level by means of path sensors (5a, 5b, 5c) of a first sensor system, - the detection of acceleration signals of the movement system with reference to the movement of the movement system by means of at least one acceleration sensor arranged on the movement system of a second sensor system, and - the calculation of the movement system state with reference to the movement of the movement system depending on the detected path signals and the detected acceleration signals by means of a microprocessor-controlled computing unit, - a calculation of a movement of the platform by means of the computing unit under the assumption that only one actuator of the movement system is changed in its length depending on its detected length change and the remaining actuators of the movement system do not experience any length change, - repeating the preceding step with every other actuator of the movement system and - calculating the movement information of the platform from the various calculated movements of the respective length change of the actuators by means of the computing unit.