Aircraft Power Line Communication Segmentation via Filter Connections
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Solution Overview
Problem
The increasing complexity and weight of wiring systems in aircraft due to the integration of new data-intensive systems, which require separate data and power lines, necessitate a more efficient method for data transmission that reduces wiring complexity and weight.
Innovation Solution
The implementation of Power Line Communication (PLC) technology within the aircraft's electrical wiring system, utilizing PLC elements with filter connections to segregate data and power transmission, allowing dedicated data propagation only on specific sections of the electrical network, thereby eliminating the need for separate data lines and simplifying the electrical system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate data lines are used for data transmission, then data communication reliability is improved, but wiring complexity and weight increase
Solution Approach 1:
The patent combines data transmission and power transmission into a single electrical line by implementing Power Line Communication (PLC). The existing power distribution network is used to carry both electrical power and data signals, eliminating the need for separate data lines. This merging approach reduces wiring complexity and weight while maintaining communication reliability through the shared infrastructure.
2Weight of stationary object
If PLC technology is used for data transmission over power lines, then wiring weight is reduced, but data transmission reliability may be compromised due to electrical interference
Solution Approach 1:
The patent introduces filter connections as intermediary elements that couple PLC elements to the electrical line. These filter connections act as mediators that separate data signals from power signals, allowing both to coexist on the same line without mutual interference. The filter connections ensure reliable data transmission by preventing electrical noise from corrupting the communication signals.
3Adaptability or versatility
If multiple PLC elements are integrated into the electrical wiring system, then data transmission coverage is improved, but system complexity increases
Solution Approach 1:
The patent segments the electrical wiring system into multiple sections, each containing PLC elements with filter connections. This segmentation allows data transmission to be distributed across different segments of the electrical network, improving overall coverage. Each segment operates semi-independently, which actually reduces overall system complexity by localizing functions and making the system more modular and manageable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces wiring complexity and weight by enabling data transmission over power lines, achieving weight savings and simplified installation, while maintaining robust and deterministic data communication with low latency and variance, suitable for real-time applications.
Implementation Method 1
At least one of the PLC elements has a filter connection and is therefore in particular a filter or a node... By means of the filter connection, the PLC element is connectable to one of the lines of the electrical wiring system... power is transported between at least one of the PLC connections and at least one corresponding instance of the power connections through the PLC element. No data transmission in the wiring system thus takes place at the power connection.
Data Source
AI summary
A transmission arrangement for an aircraft for transmitting data within the aircraft, wherein the aircraft includes an electrical wiring system of coherent lines for providing electric power for loads in the aircraft,has at least two PLC elements, connectable to a respective one of the lines, for transmitting the data between at least two of the PLC elements via the wiring system, wherein at least one of the PLC elements has at least one filter connection, wherein the filter connection has at least one PLC connection, connectable to a respective one of the lines, and a power connection, connectable to a respective one of the lines, wherein the PLC connection carries power and data and the power connection carries power and is free of data.In an aircraft having a transmission arrangement and having at least one wiring system, all the lines leading away from a coherent subsection of the wiring system have a PLC element having a filter connection, and the lines leading away are attached to a data-free PLC connection of the filter connection of the PLC element attached thereto such that the subsection of the wiring system is a data-carrying subsection that is delimited from the rest of the wiring system in terms of the data.