ZigBee Route Discovery Selection by Data Volume
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Solution Overview
Problem
Existing ZigBee wireless sensor network technologies lack flexibility in selecting between symmetric and asymmetric route discovery methods, leading to inefficient data transmission and resource utilization.
Innovation Solution
A method and system that determine the amount of data to be transmitted to selectively choose between symmetric and asymmetric path route discovery, adjusting the local network attribute parameter nwkSymLink to decide whether to save a reverse route, thereby optimizing route discovery based on data volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If symmetric route discovery is used, then the complexity of route discovery is reduced, but the adaptability to different data transmission scenarios deteriorates
Solution Approach 1:
The patent implements dynamic route discovery mode selection by introducing a data volume threshold parameter. When the data volume to be transmitted exceeds the threshold, asymmetric route discovery is selected; otherwise, symmetric route discovery is used. This dynamic adaptation resolves the contradiction by allowing the system to switch between different route discovery modes based on actual transmission needs, thereby maintaining low complexity for small data while providing adaptability for large data transmissions.
2Adaptability or versatility
If asymmetric route discovery is used, then the adaptability to different data transmission scenarios is improved, but the complexity of route discovery increases
Solution Approach 1:
The patent changes the parameter of route discovery mode selection based on data volume threshold. By comparing the data volume to be transmitted against a preset threshold, the system dynamically adjusts the route discovery approach. This parameter-based decision mechanism enables asymmetric route discovery to be applied only when necessary (large data volumes), thus achieving adaptability without permanently increasing system complexity.
3Device complexity
If the route discovery method is fixed by nwkSymLink parameter, then the device complexity is reduced, but the adaptability to different data volumes deteriorates
Solution Approach 1:
The patent makes the route discovery method dynamic by introducing data volume as a decision parameter. Instead of relying solely on the static nwkSymLink parameter, the system now dynamically selects between symmetric and asymmetric route discovery based on the actual data volume to be transmitted. This dynamic approach maintains simplicity for small data transmissions while providing adaptability for larger data volumes.
Solution Approach 2:
The patent changes the selection criterion from a fixed network attribute parameter (nwkSymLink) to a data-volume-dependent parameter. By comparing data volume against a threshold, the system adapts the route discovery method to match transmission requirements. This parameter change enables the system to maintain low complexity for typical small-data ZigBee applications while gaining adaptability for exceptional large-data scenarios.
Data Source
AI summary
Embodiments of the present invention provide a method, device, and system for selecting route discovery, to enable flexible selection of a route discovery method. The method includes: determining the amount of data to be transmitted; selecting, according to the amount of data to be transmitted, symmetric path route discovery or asymmetric path route discovery; and transmitting a selection result to other nodes.