This application claims the benefit of the European patent application No. 13 186 745.9 filed on Sep. 30, 2013, the entire disclosures of which are incorporated herein by way of reference.
The present disclosure generally relates to aircraft cabin management. More particularly, the present disclosure relates to an aircraft cabin management panel and an aircraft cabin management system comprising the panel.
The aircraft cabin is the section of an aircraft in which passengers travel. Typically, a cabin is divided into several parts including areas for passengers, comprising seats arranged in rows and alleys, as well as areas for flight attendants, such as the galley and areas close to the exit doors. Cabin management systems generally allow operating and monitoring cabin related functions provided to both passengers and the crew including, for example, controlling the cabin temperature, controlling the cabin illumination, controlling emergency and evacuation signaling, controlling the in-flight entertainment system, making passenger announcements, making crew-internal calls, monitoring the water and waste tank level, monitoring lavatory smoke indication, and monitoring the door and escape slide pressure status.
Known cabin management systems typically include a central server provided redundantly and located at the avionics compartment at the nose of an aircraft. The server forms the central control and interface component of the cabin management system. The server is connected to a flight attendant panel installed within the cabin and providing a remote user interface that may be operated by aircraft personnel to control and monitor the various functions around the cabin. Aircraft systems under control of the server are connected to the server via respective interfaces. For passenger related functions, the server is connected to a number of distributor units installed in the cabin ceiling above the passenger seats which allow connections to passenger service units or cabin illumination units. For crew related systems, the server is connected to a number of distributor units installed in the cabin ceiling near the exit doors which allow connections to crew systems, such as interphone handsets, for example.
While such cabin management systems have proven their suitability for some aircrafts, they turn out to be rather bulky and complex for other aircrafts.
Accordingly, there is a demand to provide an improved aircraft cabin management technique.
According to a first aspect, an aircraft cabin management panel is provided. The cabin management panel comprises a user interface and a control unit. The control unit is configured to communicate a control instruction to at least one of a plurality of cabin components provided in an aircraft cabin upon an input received via the user interface. The control instruction enables the at least one of the plurality of cabin components to perform an operation in accordance with the control instruction.
The plurality of cabin components may comprise at least one of a passenger service unit and a cabin illumination unit. Passenger service units may be arranged above the passenger seats and may provide passenger related functions to the passengers. For this purpose, passenger service units may comprise at least one of a fasten-seatbelt sign, a non-smoking sign, a flight attendant call button, a reading light and a loudspeaker. Cabin illumination units may be arranged in the cabin ceiling close to the overhead bins along the alleys of the cabin and may comprise, for example, LED strips or fluorescent light strips providing light to illuminate the cabin. A cabin component receiving a control instruction from the cabin management panel may process the control instruction and perform an operation in accordance with the control instruction. For example, a passenger service unit may receive a control instruction to turn on the fasten-seatbelt sign and a cabin illumination unit may receive a control instruction to reduce its brightness and generate a dimmed ambient light.
The user interface may be integrated into the cabin management panel. The user interface may be configured to display status information of at least one of the cabin components and may comprise a display, one or more indicator lights and/or other types of indicators for this purpose. The user interface may further be configured to receive an input from a user, such as a flight attendant, and may comprise one or more control buttons, switches and/or other types of controls for this purpose. Alternatively or additionally, the user interface may comprise a touchscreen configured to display respective status information and receive respective inputs. The cabin management panel may be installed in a wall of the aircraft cabin at a location visible and accessible to aircraft personnel, such as above the seat of a flight attendant, for example.
The control unit may be integrated into the cabin management panel. The control unit may be configured to receive an input from the user interface and may further be configured to control the user interface so as to display status information of at least one of the cabin components. Upon an input received via the user interface, the control unit may communicate a control instruction to at least one of the cabin components defining an operation to be performed by the at least one cabin component. The control instruction may comprise one or more parameters defining specifics of the operation to be performed. The control unit may also be configured to receive status information communicated from a cabin component. For example, a passenger service unit may indicate to the cabin management panel that a flight attendant call button has been pressed.
The cabin management panel may have an outer appearance of a prior art flight attendant panel described above. Other than known flight attendant panels, however, the cabin management panel described herein does not only serve as a remote user interface to a central server of the cabin management system, but contains control resources itself that allow for controlling the cabin components provided in the aircraft cabin. Relevant control resources (i.e., hardware and/or software resources required to control the cabin components) residing in the central server of known systems are thus incorporated into the cabin management panel, hence making the central server generally dispensable. This allows saving wiring from the cabin to the avionics compartment at very front of the aircraft as well as freeing space therein. The weight and space requirements of a cabin management system may therefore be reduced. Depending on the size of the aircraft, only suitable amounts of control resources may be built into the cabin management panel, hence keeping the weight and space requirements as low as possible.
In one implementation, the cabin management panel may comprise at least one cabin component interface configured to be connected to a cabin component of the plurality of cabin components or to a distributor unit. A cabin component interface may be realized as a hardware component integrated into the cabin management panel, such as, for example, as an interface card installed in the cabin management panel. A cabin component interface may implement an Ethernet or an RS-485 standard—but is not limited thereto—and may comprise one or more ports for connecting respective cables. A distributor unit may comprise one or more replicated interfaces configured to be connected to a cabin component of the plurality of cabin components or to another distributor unit. A distributor unit may forward receive information via the replicated interfaces to the respective destinations. A distributor unit may also comprise additional functions, such as, for example, one or more amplifiers provided for loudspeakers contained in passenger service units which are connected to the distributor unit.
The cabin management panel may further comprise at least one aircraft system interface configured to be connected to an aircraft system. The aircraft system may be one of a water and waste system, a cabin temperature control system, a smoke detection system, a cabin surveillance and aircraft video system, an audio briefing system, an in-flight entertainment system, an escape slide system and an avionic system. An aircraft system interface may be realized as a hardware component integrated into the cabin management panel, such as, for example, as an interface card installed in the cabin management panel. The user interface of the cabin management panel may be configured to display status information of the aircraft system and the control unit of the cabin management panel may be configured to control the user interface to display corresponding status information. The control unit may further be configured to communicate a control instruction to the aircraft system upon an input received via the user interface. The control instruction may comprise one or more parameters defining specifics of the operation to be performed. An aircraft system receiving a control instruction from the cabin management panel may process the control instruction and perform a corresponding operation in accordance with the control instruction. The control unit may also be configured to receive status information communicated from the aircraft system.
In one variant, the cabin management panel may also comprise at least one network interface configured to connect the cabin management panel to another cabin management panel via a network. Respective cabin management panels may thus communicate via the network and may, for example, perform a remote control or redundancy function among each other. A network interface may be realized as a hardware component integrated into the cabin management panel, such as, for example, as an interface card installed in the cabin management panel.
According to a second aspect, an aircraft cabin management system is provided. The system comprises a cabin management panel as described herein as well as a plurality of cabin components provided in an aircraft cabin. The control unit of the cabin management panel is configured to communicate the control instruction to at least one of the plurality of cabin components upon the input received via the user interface of the cabin management panel. The control instruction enables the at least one of the plurality of cabin components to perform the operation in accordance with the control instruction. As described above, the plurality of cabin components may comprise at least one of a passenger service unit and a cabin illumination unit.
Generally, one of the cabin components may be connected to the cabin management panel via a cabin component interface thereof. Alternatively, one of the cabin components may be connected to the cabin management panel via one or more distributor units.
In one possible implementation, one or more distributor units may be connected in series to at least one cabin component interface of the cabin management panel to form a linear-type daisy chain with the cabin management panel. At least one of the cabin components may in this case be connected to one of the distributor units, for example in a point-to-point manner. The at least one of the cabin components may be configured to be addressable by the cabin management panel using a direct addressing scheme.
In another possible implementation, one or more of the plurality of cabin components may be connected in series to at least one of the one or more distributor units to form a ring-type daisy chain therewith. Such cabin components may be configured to be addressable by the cabin management panel using a token passing scheme. A token ring network may thus be realized, for example.
In an alternative possible implementation of the cabin management system, one or more of the plurality of cabin components may be connected in series to the at least one cabin component interface of the cabin management panel to form a ring-type daisy chain with the cabin management panel. In such an implementation, no distributor units are interconnected between the cabin components and the cabin management panel. Such cabin components may be configured to be addressable by the cabin management panel using a token passing scheme. A token ring network may thus be realized, for example.
For establishing connections between cabin components, distributor units and the cabin management panel, Ethernet or RS-485 cables may be used, depending on the corresponding cabin component interface of the cabin management panel. Supported data rates for the connections may, for example, comprise 100 Mb/s (Fast Ethernet) or 1000 Mb/s (Gigabit Ethernet).
In a further variant, the cabin management system may comprise an additional cabin management panel as described herein. For ease of the following description, the cabin management panel described above will be referred to as “first cabin management panel” and the additional cabin management panel will be referred to as “second cabin management panel.” Also, cabin components connected to the first cabin management panel will be referred to as “first cabin components” and cabin components connected to the second cabin management panel will be referred to as “second cabin components.”
In one possible variant, the first cabin management panel and the second cabin management panel may be connected via a network connected at their at least one network interfaces. The network interfaces of the first cabin management panel and the second cabin management panel may be point-to-point connected or may each be connected to the network via a hub, a switch, or the like. The network may be a separate network for connecting cabin management panels only. The network may be an Ethernet network supporting data rates of 100 Mb/s (Fast Ethernet) or 1000 Mb/s (Gigabit Ethernet), for example.
The first cabin management panel and the second cabin management panel may be configured to implement a remote control or redundancy function among each other via the network. In one such variant, the control unit of the first cabin management panel may be configured to be controllable by the control unit of the second cabin management panel via the network. The control unit of the second cabin management panel may control the first cabin management panel to communicate a control instruction to at least one of the plurality of first cabin components upon an input received via the user interface of the second cabin management panel. The control instruction may enable the at least one of the plurality of first cabin components to perform an operation in accordance with the control instruction. Thus, the second cabin management panel may control the at least one of the plurality of first cabin components remotely through the first cabin management panel.
The first cabin management panel may be installed at a location in the front of the cabin, such as, for example, close to the front exit door of the aircraft. The second cabin management panel may be installed at a location in the rear of the cabin, such as, for example, close to a rear exit door of the aircraft. In such an arrangement, flight attendants may control and monitor the cabin management system from both the front and the rear of the cabin.
In a further possible implementation, the cabin management system may comprise a plurality of additional cabin components connected to the second cabin management panel, hereinafter referred to as “second cabin components.” The control unit of the second cabin management panel may in this case be configured to communicate a control instruction to at least one of the plurality of second cabin components upon an input received via the user interface of the second cabin management panel. The control instruction may enable the at least one of the plurality of second cabin components to perform an operation in accordance with the control instruction.
In such an implementation, full system failures are generally prevented when a single component of the cabin management system fails. If, for example, the first cabin management panel fails, only the first cabin components will cease their operation whereas the second cabin management panel together with the second cabin components will continue to be fully operable. For example, if the first cabin components comprise all cabin components on the left side of the cabin and the second cabin components comprise all cabin components on the right side of the cabin, only one side of the cabin will go down in case of a failure in one of the cabin management panels.
The second cabin management panel may generally have the same configuration as the first cabin management panel and the amount of second cabin components may generally be equal to the amount of first cabin components. Also, the second cabin components may be connected to the second cabin management panel in any of the various possible variants of connecting the first cabin components to the first cabin management panel described above.
It will be understood by those skilled in the art that even more additional cabin management panels may be added to the cabin management system which may be configured in the same manner as one of the first and the second cabin management panel. A third cabin management panel may, for example, be installed at a center location of the cabin.
In the following, the present disclosure will further be described with reference to exemplary implementations illustrated in the figures, in which:
In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the present disclosure. It will be apparent to one skilled in the art that the present disclosure may be practiced in other implementations that depart from these specific details.
Those skilled in the art will further appreciate that functions explained hereinbelow may be implemented using individual hardware circuitry, using software functioning in conjunction with a programmed microprocessor or a general purpose computer, using an application specific integrated circuit (ASIC) and/or using one or more digital signal processors (DSPs).
The control server 102 is further connected to several aircraft systems 110, such as a water and waste system, a cabin temperature control system, a smoke detection system, a cabin surveillance and aircraft video system, an audio briefing system, an in-flight entertainment and connectivity system, an escape slide system and an avionic system. Status information of the aircraft systems 110 may be displayed on the flight attendant panels 106 and 108 and a flight attendant desiring to control one of the aircraft systems 110 may use the flight attendant panels 106 and 108 to tell the control server 102 to correspondingly control the respective aircraft system 110.
For providing passenger related functions in the cabin, the central server 102 is connected to a plurality of distributor units 112, also called decoder/encoder units (DEU). In the example of
Generally, in CIDS, there are two types of distributor units, namely type A DEUs and type B DEUs. Type A DEUs are connected to the central server 102 via top lines and provide interfaces for passenger related systems, such as the passenger service units 114 or cabin illumination units 116. Type B DEUs are connected to the central server 102 via middle lines and provide interfaces for crew related systems, such as interphone handsets, for example. In the example of
In terms controlling the aircraft systems 110, both the first and the second cabin management panels 302 or 304 are connected via at least one of their aircraft system interfaces to the aircraft systems 110. Upon an input received at the user interface of either the first or the second cabin management panel 302 or 304, the corresponding control unit of the either first or the second cabin management panel 302 or 304 may communicate a corresponding control instruction to the respective aircraft system 110. Since both the first and the second cabin management panel 302 and 304 are connected and capable to control the aircraft systems 110, they implement a redundancy function for these systems.
In terms of controlling the cabin components, i.e., the passenger service units 114 and the cabin illumination units 116, only the first cabin management panel 302 is connected to the cabin components via at least one of its cabin component interfaces. Upon an input received at the user interface of the first cabin management panel 302 with regard to the control of a cabin component, the control unit of the first cabin management panel 302 communicates a corresponding control instruction to the respective cabin component. The second cabin management panel 304 is connected to the first cabin management panel 302 via a network and may therefore control the cabin components remotely through the first cabin management panel 302.
In the implementation of
As is apparent from the foregoing specification, the invention is susceptible of being embodied with various alterations and modifications which may differ particularly from those that have been described in the preceding specification and description. It should be understood that I wish to embody within the scope of the patent warranted hereon all such modifications as reasonably and properly come within the scope of my contribution to the art.
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