Parent-Child Switch Network for Scalable Aircraft Health Monitoring
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Solution Overview
Problem
Traditional monitoring systems face challenges in scalability, flexibility, mass reduction, and cost reduction, particularly in distributed sensing systems for aircraft compartments.
Innovation Solution
A health monitoring system comprising multiple nodes with controllers that can toggle between parent and child roles, connected by shielded wire harnesses, and equipped with piezoelectric ultra-sonic or fiber optic sensors, along with integral power conditioning and serial communication capabilities, enabling flexible and reliable data processing and sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single federated unit is used to collect and process sensor data, then the system is highly functional, but scalability and flexibility are limited
Solution Approach 1:
The system divides the monitoring function into multiple independent nodes (parent nodes and child nodes) instead of using a single federated unit. Each node can independently collect and process sensor data, enabling the system to scale by adding more nodes without requiring complete system redesign.
Solution Approach 2:
Each node in the distributed system is designed to be multi-functional, capable of acting as both a parent node and a child node depending on configuration. This universal design allows any node to potentially become the root parent node, providing flexibility and adaptability while maintaining full system functionality.
2Adaptability or versatility
If multiple distributed nodes are used to improve scalability, then flexibility increases, but system complexity increases
Solution Approach 1:
The system employs dynamic role assignment where nodes can switch between parent and child roles based on operational needs. The root parent node can be dynamically selected from any node in the network, and the configuration can be changed without physical reconfiguration, reducing the complexity of managing distributed systems.
Solution Approach 2:
The system includes configuration mechanisms that allow dynamic reconfiguration of parent-child relationships. Feedback loops enable the system to automatically manage node relationships and maintain system integrity as nodes are added or removed, simplifying the management of distributed complexity.
3Reliability
If traditional federated units are used, then comprehensive data processing is achieved, but mass and cost increase
Solution Approach 1:
The data processing function is segmented and distributed across multiple lightweight nodes rather than concentrated in a single heavy federated unit. Each node performs local data collection and processing, reducing the mass requirement for individual components while maintaining overall system processing capability through collective operation of all nodes.
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
The system achieves increased reliability, stability, reduced size, weight, and complexity while maintaining flexibility, allowing for efficient health monitoring and data processing in aircraft compartments.
Implementation Method 1
At least one of the nodes can be configured to be a piezoelectric ultra-sonic wave generator and detector
Implementation Method 2
or be a fiber optic based sensor
Data Source
AI summary
A system including at least a first node or subnet device configured to be commanded by a controller, a first controller configured to control operation of the first node and interface with a host outside of the system, and a second controller identical to the first controller configured to be a child to the first controller during normal operation and be a parent to a second node or subnet device.