Hierarchical Sensor Node Identification Method
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Solution Overview
Problem
Existing sensor networks face challenges in sharing information across different services and networks due to the use of different protocols and communication technologies, and existing sensor node identifiers are either too long, burdening low-performance devices, or not compatible between networks, lacking a standardized identification system for managing and accessing sensor nodes.
Innovation Solution
A hierarchical sensor node identification method that modifies and combines component identifiers across layers, allowing unique identification of sensor nodes by removing redundant identifiers in each layer, enabling efficient communication and management within the network while maintaining compatibility across different sensor networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sensor node identifier is designed as a unique identifier around the world, then the identifier can uniquely identify sensor nodes globally, but the length of the identifier becomes long, which imposes a burden on low-performance sensor network devices
Solution Approach 1:
The patent segments the identification system into multiple hierarchical layers (first identifier layer, second identifier layer, third identifier layer) with different scopes. The first identifier provides global uniqueness, while the second and third identifiers provide local uniqueness within specific networks or domains. This segmentation allows devices to use shorter identifiers at local levels while maintaining global uniqueness through the hierarchical structure, thus reducing the burden on low-performance devices.
Solution Approach 2:
The patent introduces a hierarchical dimension to the identification system, transitioning from a flat identifier structure to a multi-level hierarchical structure. By adding the dimension of hierarchical layers, the system achieves both global uniqueness and local efficiency, allowing shorter identifiers at lower levels while maintaining global identification capability through the layered architecture.
2Device complexity
If a sensor node identifier is defined to be uniquely identified only in a specific sensor network, then the identifier length can be reduced, but compatibility between different sensor networks is deteriorated
Solution Approach 1:
The patent creates a universal hierarchical identification system that serves multiple functions simultaneously. The same hierarchical identifier structure works across different sensor networks and domains, providing both local uniqueness and global compatibility. The system can be universally applied to various sensor network types while maintaining compatibility, thus resolving the contradiction between identifier length and network compatibility.
Solution Approach 2:
The patent employs a nested identifier structure where smaller identifiers are nested within larger ones. The second and third identifiers are nested within the first identifier's scope, creating a nested hierarchical structure. This nesting allows the system to maintain compatibility across different networks while using shorter identifiers at local levels, as each level's identifier is contained within the broader context of higher levels.
3Productivity
If different protocols and communication technologies are used for each service in the sensor network, then service-specific optimization can be achieved, but it becomes difficult to share information therebetween
Solution Approach 1:
The patent introduces a hierarchical identifier system as an intermediary that mediates between different service protocols and communication technologies. This intermediary structure provides a standardized identification framework that all services can use, enabling information sharing across different protocols while maintaining service-specific optimizations. The hierarchical identifiers act as a common language that facilitates interoperability.
Data Source
AI summary
A sensor node identification method by a first component of a first layer in a hierarchical sensor network includes: receiving a sensing request including sensor node identification information from a second component of a second layer prior to the first layer; modifying the sensor node identification information by removing an identifier of the first layer from the sensor node identification information when an identifier of the first layer matches an identifier of the first component among the sensor node identification information; and transmitting a sensing request including the modified sensor node identification information to a third component of a third layer subsequent to the first layer.