Abstract: Multifunction smart door devices may be part of a system of multifunction smart door devices installed within or near stateroom doors of a cruise ship. Each smart door device can control access to a stateroom based on facial recognition or a wireless credential and can perform other functions such as controlling stateroom personalization features, providing an electronic peephole function, allowing controlled access for authorized crew members, accommodating remote unlocking, and providing notifications. Data obtained by the smart door devices can be provided to the cruise operator for service, safety, or security purposes, such as for anonymized foot traffic analysis, hazard detection, and stateroom access auditing. Smart door device functionality may be implemented in part by customers' mobile devices.

Abstract: A key storage device (1) has a tubular housing (8) having an open proximal end (14) and a distal end (15), and a sliding carriage (2) which is insertable into the proximal end (14) of the housing (8). The sliding carriage (2) has a compartment (4) for a key to be stored, and is displaceable between an open position in which a majority of the sliding carriage (2) is outside of the housing (8) and the compartment (4) is accessible for key retrieval, and a closed position in which the majority of the sliding carriage (2) is inside the housing (8) and the compartment (4) is inaccessible. A lock mechanism (12) is arranged within the tubular housing (8). It has a locked state in which the sliding carriage (2) is kept locked in its closed position and prevented from being displaced to its open position, and an unlocked state in which the sliding carriage (2) may be displaced to its open position.