Rotorcraft Tail Boom Data Transfer via Power Line Communication
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Solution Overview
Problem
Current health and usage management systems in rotorcraft require extensive wiring and connectors to transfer data from the tail boom section to the main fuselage, leading to increased weight, complexity, and costs, while also limiting the capacity for data processing and analysis.
Innovation Solution
A data transfer system utilizing power line communication nodes on existing power buses to bi-directionally transmit data between the tail boom section and the main fuselage, reducing the need for additional wiring and enabling data processing in the tail boom section, with an energy storage module allowing health monitoring even when the aircraft is unpowered.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wiring systems are used to transfer data from the tail boom section to the main fuselage, then data transfer capability is achieved, but system weight and complexity increase significantly
Solution Approach 1:
The power bus is made multi-functional by enabling it to carry both electrical power and data communication signals. Power line communication nodes are integrated into the existing power distribution infrastructure, allowing the same physical infrastructure to serve dual purposes: delivering electrical power to tail boom components and transmitting health monitoring data back to the main fuselage, thereby eliminating the need for separate dedicated data wiring
Solution Approach 2:
The communication function is merged with the power distribution function. Instead of having separate power cables and data cables running between the tail boom and main fuselage, the system combines these functions into a single integrated architecture where data signals are superimposed on the power bus, reducing the overall number of cables and connectors required
2Reliability
If extensive wiring is used to connect the tail boom section to the main fuselage, then data transfer is enabled, but manufacturing and maintenance costs increase
Solution Approach 1:
By making the power bus multi-functional, the system eliminates the need for additional dedicated communication wiring infrastructure. The existing power distribution network is utilized for both power delivery and data communication, reducing material costs, manufacturing complexity, and installation expenses while also lowering maintenance requirements
3Reliability
If traditional data transfer systems are used, then basic health monitoring is achieved, but data processing capacity and analysis capability are limited
Solution Approach 1:
The system segments the data processing function by distributing intelligence to remote locations. Health monitoring sensors and processing capabilities are placed at the tail boom section itself rather than relying solely on centralized processing in the main fuselage. This distributed architecture enables local data filtering, preprocessing, and analysis, increasing overall data processing capacity and reducing the burden on central systems
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 solution reduces system weight and complexity, lowers manufacturing and maintenance costs, enables the collection and processing of larger volumes and varied types of data, and provides advanced health status analysis of the tail boom section with enhanced security and efficiency.
Implementation Method 1
a first power line communication node on the power bus in the tail boom section of the rotorcraft, a second power line communication node on the power bus in the main fuselage of the rotorcraft
Data Source
AI summary
A system for data transfer in a rotorcraft includes a power bus extending from a power source in a main fuselage of the rotorcraft to provide electrical power to electrical loads located in a tail boom section of the rotorcraft, a first power line communication node on the power bus in the tail boom section of the rotorcraft, a second power line communication node on the power bus in the main fuselage of the rotorcraft, and a digital sensor bus connected to the first power line communication node. Information from the digital sensor bus is transmitted to the first power line communication node and across the power bus to the second power line communication node.