Root Node Selection in Mesh Networks via Signal Quality Ranking
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Solution Overview
Problem
Current mesh network architectures lack a standard procedure for selecting root nodes, leading to suboptimal communication status due to the absence of a clear method for determining the number and quality of root nodes required.
Innovation Solution
A root node selection system where idle nodes broadcast signal beacons with signal quality parameters, creating a signal quality table that ranks nodes based on their communication strength, allowing only nodes with signal quality parameters above a certain threshold to serve as root nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mesh network architecture is used to enable multi-node networking, then network flexibility and scalability are improved, but the lack of standardized root node selection procedures leads to poor communication status
Solution Approach 1:
The patent applies parameter changes by establishing quantitative signal quality thresholds and ranking criteria for root node selection. It transforms the subjective assessment of communication quality into objective measurable parameters (signal strength, signal-to-noise ratio, packet loss rate), enabling systematic comparison and selection of root nodes based on defined performance thresholds.
Solution Approach 2:
The patent implements feedback mechanisms where nodes continuously monitor signal quality parameters and exchange information about their communication status. This feedback loop enables dynamic adjustment of root node selection and network configuration, ensuring that the network adapts to changing communication conditions and maintains optimal performance.
2Productivity
If multiple root nodes are deployed to share workload, then network capacity is improved, but without clear selection criteria the communication status cannot be satisfied
Solution Approach 1:
The patent applies local quality by assigning different roles and responsibilities to different nodes based on their local signal quality characteristics. Nodes with superior signal quality parameters are selected as root nodes, while other nodes function as regular mesh nodes. This differentiation ensures that root nodes have the necessary communication quality to handle additional workload and coordination responsibilities.
Solution Approach 2:
The patent uses parameter changes by defining specific signal quality thresholds and ranking criteria that determine root node eligibility. It transforms qualitative assessments of node suitability into quantitative parameter comparisons, enabling systematic selection of multiple root nodes that can effectively share workload while maintaining communication reliability.
3Device complexity
If root node selection is performed without standardized procedures, then system complexity is reduced, but the communication status of the mesh network cannot be satisfied
Solution Approach 1:
The patent applies segmentation by dividing the root node selection process into distinct stages: signal quality measurement, parameter comparison against thresholds, ranking based on multiple criteria, and final selection. This segmented approach breaks down the complex selection procedure into manageable steps, making the system both systematic and implementable without overwhelming complexity.
Solution Approach 2:
The patent replaces manual or ad-hoc root node selection methods with an automated systematic procedure based on measured signal quality parameters. The selection process is substituted from a mechanical/manual operation to an automated algorithmic process that objectively evaluates nodes based on predefined criteria, ensuring consistency and reliability.
Data Source
AI summary
A root node selection system includes a plurality of idle nodes, and each idle node has a signal quality parameter. The each idle node is configured to broadcast a signal beacon and monitor other signal beacons, where each signal beacon carries the corresponding signal quality parameter. Any of the idle nodes is used as a to-be-selected node, and the to-be-selected node stores a signal quality table. The signal quality table includes a signal item and a rank item. The signal item includes the signal quality parameters. The rank item includes a plurality of ranks, and the ranks correspond to the signal quality parameters in the signal item in a one-to-one manner. The to-be-selected node serves as a root node of a mesh network based on that the rank corresponding to the signal quality parameter of the to-be-selected node is greater than a rank threshold.