Redundant Wireless Sensor Network Node Topology
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Solution Overview
Problem
Existing wireless communication systems for sensor networks lack reliable configurations for redundant connectivity, particularly in energy-constrained devices and networks that require efficient data routing and redundancy to ensure data delivery.
Innovation Solution
The implementation of a wireless network with redundantly connected nodes, utilizing primary and secondary connections, group addressing, and data relaying nodes to ensure robust data transmission and network resilience, compatible with protocols like Zigbee and IEEE 802.15.4, allowing for efficient data routing and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant connections are implemented in wireless sensor networks, then network reliability is improved, but device complexity increases
Solution Approach 1:
The network is segmented into different node types (data sending nodes, data relaying nodes, and base stations) with specialized functions. Each node type has simplified protocols and behaviors appropriate to its role, reducing individual device complexity while maintaining overall network reliability through the redundant mesh topology.
Solution Approach 2:
The network dynamically selects primary and secondary paths for data transmission based on current node availability and network conditions. Nodes can dynamically switch between primary and secondary routes, and the system adapts topology changes automatically, maintaining reliability without requiring complex static configuration.
2Reliability
If multiple transmission paths are used for redundant connectivity, then data delivery reliability is improved, but energy consumption increases
Solution Approach 1:
The system maintains full redundant connectivity capability but only activates secondary transmission paths when needed (when primary paths fail or are congested). Nodes maintain secondary route information but do not continuously transmit on all possible paths, reducing energy consumption while preserving data delivery reliability when required.
3Quantity of substance
If group addressing is implemented, then address space efficiency is improved, but collision probability increases
Solution Approach 1:
The addressing system uses different addressing schemes for different communication scenarios: unicast addressing for point-to-point communications to minimize collisions, and group addressing for broadcast/multicast operations where efficiency is prioritized. The system locally adapts the addressing quality to the specific communication need, balancing address space efficiency with collision avoidance.
Data Source
AI summary
Methods and devices for operating a wireless network including redundant communication. Methods involving redundantly connected nodes are discussed including addressing methods and/or methods of creating groups for such redundant communication. The use of primary and secondary redundant connections is discussed. Also, devices for implementing such methods.