Abstract: The invention relates to an emergency oxygen supply device for aircraft inhabitants, comprising a container, wherein an oxygen mask is positioned inside said container, a releasable cover and a latch mechanism comprising a latch locking said cover lid. According to the invention said latch mechanism comprises a permanent magnet interacting with a magnetisable element an exerting a magnetic holding force onto said magnetisable element to hold said latch in a locking position, wherein a solenoid is positioned adjacent to the permanent magnet, said solenoid being connected to a control unit said control unit being adapted to receive an opening signal and to provide a current flowing through said solenoid in response to such opening signal, wherein said solenoid is arranged and dimensioned such that the current flowing through said solenoid reduces said magnetic holding force to such a level that the latch is released in a n unlocking position.

Abstract: The invention relates to a system for extinguishing and preventing a fire on board of an aircraft.

Abstract: The invention relates to a passenger service unit for installation inside an aircraft cabin comprising a passenger service device, a control unit, coupled to the passenger service device for transmitting control signals comprising an imaging device oriented to acquire a sequence of images out of a predetermined observed area and an image analysis device coupled for signal transmission to said imaging device and adapted to analyze a static geometric structure within said observed area out of a single image of said imaging device.

Abstract: The invention relates to a passenger service unit for passenger of an aircraft, comprising an emergency oxygen device comprising an oxygen source, a control unit and means for delivering oxygen from the oxygen source to a passenger, an emergency energy storage unit connected to the emergency oxygen device for providing energy to start and/or control oxygen supply in case of an emergency situation, wherein a light source connected to the emergency energy storage unit and an emergency light control unit adapted to activate said light source at the time the emergency oxygen device has been activated.