8 results about "Line-replaceable unit" patented technology

A line replaceable unit (LRU) includes a data communication interface configured to receive identification (ID) data from an aircraft communication bus, an aircraft systems interface configured to receive aircraft systems data corresponding to an operation of at least one aircraft system, and an LRU data interface configured to receive LRU data corresponding to the LRU. The LRU further includes a processor and a memory unit. The processor processes the aircraft systems data and the LRU data and determine at least one data category. The memory unit includes a plurality of data partitions. The processor is configured to generate at least one configuration data package by combining the ID data with one or both of the aircraft systems data and the LRU data, and to store the configuration data package in a given data partition based on the data category.

The present disclosure relates to apparatuses, methods, and aircraft for line replaceable units. The apparatus includes a housing, a first interface on a first side of the housing, a second interface on a second side of the housing opposite the first side, and circuitry within the housing. The first interface is configured to couple to a multi-mode receiver (MMR) rack. The second interface is configured to couple to an MMR external to the housing. The circuitry is configured to receive, via the first interface, digital data representative of a navigation signal received at an antenna. The circuitry is configured to perform time, space, and frequency filtering operations using the digital data to generate modified digital data. The circuitry is configured to output, via the second interface, a modified analog navigation signal to the MMR based on the modified digital data.

Embodiments of the disclosure provide for importing and transforming interface control document (ICD) data. In the context of a method, the method includes obtaining a first ICD protocol specification and a second ICD protocol specification, wherein a respective ICD protocol specification comprises a plurality of protocol parameters for intercommunication between a plurality of line replaceable units (LRUs) of a vehicle; generating a first set of parameter definitions based on the first ICD protocol specification; generating a second set of parameter definitions based on the second ICD protocol specification; and generating at least one cross-relational data representation of the first ICD protocol specification and the second ICD protocol specification based on the first set of parameter definitions and the second set of parameter definitions. The method may further include generating transformed ICD data in accordance with the second ICD protocol specification based on input ICD data and the cross-relational data representation.

A system is disclosed for thermal coupling and fastening of circuit card assemblies of line-replaceable units (LRUs). The LRU may include a chassis configured to house one or more circuit card assemblies. The chassis may include external coupling features configured to receive fasteners. The circuit card assembly may include a heat sink with corresponding coupling features configured to align with the external coupling features and to receive the fasteners. The chassis may include a mateable surface. The circuit card assembly may include a corresponding mateable surface configured to mate to and thermally couple with the mateable surface of the chassis. The chassis may include an electrically conducting surface and the circuit card assembly may include a corresponding electrically conducting surface.

A latch assembly for securing a passenger seat tray table including a spring-loaded sliding latch and a spring-loaded rotating catch. The spring-loaded latch interacts with the spring-loaded catch such that, when the spring-loaded latch is closed, the tab engages the spring-loaded catch to prevent the spring-loaded catch from pivoting open. The spring-loaded catch interacts with the spring-loaded latch such that, when the spring-loaded catch is open, the tab engages the spring-loaded catch to prevent the spring-loaded latch from sliding closed. The latch assembly operates by push-to-close and the latch resets automatically when the tray table is secured. The latch assembly may be a line replaceable unit, part of a tray table assembly, and part of an aircraft passenger seat assembly.

A line-replaceable device configured for installation in a docking station comprising: - at least one first operational connector configured for connection to a second operational connector of the docking station in order to exchange operational data during nominal operation of the device, - at least one first detection connector configured for connection to a second detection connector of the docking station in order to exchange detection data before nominal operation of the device, - at least one first detection module coupled to the first detection connector and configured to determine an installation position of the device in the station from detection data exchanged with a second detection module of the station, via the first and second detection connectors.

A power supply system for use in an airplane is described. The power supply system includes N alternating current (AC) power outlets configured to provide AC power output at a passenger seat in an airplane, M direct current (DC) power outlets configured to provide DC power output at the passenger seat and a controller configured to control allocation of power from a power supply to the N AC power outlets and M DC power outlet according to a phase of a plurality of phases of operation of the power supply system, where N and M are positive integers.

The invention provides a reusable eVTOL electric propulsion system safety modeling method, and belongs to the technical field of aviation simulation, and the method comprises the steps: defining an electrical interface and a signal interface according to a cross-linking interface between an electric propulsion system and other systems, and defining basic information of the electrical interface and the signal interface; modeling products related to the electric propulsion system; establishing an equivalent function module of each product according to the mechanism of the product; for each product, if a workshop replaceable unit (SRU) hierarchy fault exists in the product, a fault tree module is established in an equivalent function module of the product, a top event of the fault tree module is a route replaceable unit (LRU) hierarchy event, and a basic event is an SRU hierarchy event; and an LRU-level fault simulation module is established, and product interface modeling is carried out. The method provided by the invention can be adapted to different eVTOL models with similar architectures, the design efficiency is improved, and the research and development risk is reduced.