Abstract: A vehicle seat drive system, in particular an airplane passenger seat drive system, not requiring special software. The systems will be adaptable to new conditions over the course of the life of the installation thereof. The systems is monitorable at any time, and is capable of automatically reporting the occurrence of system faults. To accomplish this a direct link to a network that can be connected to the internet is provided.

Abstract: According to the method for controlling an automatic cleaning device while a window surface is being cleaned, the cleaning head is first advanced in force-controlled manner approximately centrally or near the edge towards the window surface. This initial position follows from the basic data of the associated building on the basis of the constructional drawing. The cleaning head is then moved in the X- or Z-direction over the window surface up to the window frame in a first edge-search mode and then along the window frame into the associated window corner in which the cleaning process proper starts. The frame of the cleaning head is elastically displaceable relative to the rigid structure so that the control means can sense whether the cleaning head is in contact with a window edge. Alternatively, in the case of frameless windows, there may be provided a sensor whose signal is received by the control means.

Abstract: An automatic pane cleaning system includes a cleaning head containing at least one cleaning chamber, at least one suction chamber and at least one air supply chamber. Clean water, optionally mixed with cleaning additives, is supplied to the cleaning chamber to clean panes by means of ultrasound, rotating brushes or steam. Water is supplied through a closed air and water circuit which is connected to said chambers and by which the water loss is minimized during the supply of water.