Wireless Sensor Node Congestion Avoidance via Dynamic Parent Switching
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Solution Overview
Problem
Conventional wireless communication devices in multi-hop networks face challenges in reducing power consumption due to data congestion, limited data transmission and storage capacity, and inability to detect and avoid congestion, leading to deteriorated data collection rates and battery life.
Innovation Solution
A wireless communication device that autonomously detects congestion and switches its connection destination to minimize necessary transmission and reception processing, using a communication unit to search for and select a new parent node when congestion occurs, thereby reducing power consumption and avoiding data collection failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If data is transmitted through multiple hops in a wireless sensor network, then data collection coverage is improved, but power consumption increases and data congestion occurs
Solution Approach 1:
The patent implements dynamic parent node switching where wireless sensor nodes can change their connection destination based on real-time network conditions. When congestion is detected or a parent node fails, nodes dynamically select new parent nodes to maintain data transmission efficiency and reduce power consumption, making the network topology adaptable rather than static.
Solution Approach 2:
The patent employs feedback mechanisms where wireless sensor nodes monitor transmission status and congestion conditions, then use this information to make intelligent routing decisions. The system continuously receives feedback about network state and adjusts data transmission paths accordingly, allowing nodes to avoid congested areas and reduce unnecessary transmissions.
2Productivity
If wireless sensor nodes continuously transmit data to parent nodes, then data collection rate is maintained, but power consumption increases due to inability to detect congestion
Solution Approach 1:
The patent implements feedback mechanisms where wireless sensor nodes monitor transmission status and congestion conditions, then use this information to make intelligent routing decisions. The system continuously receives feedback about network state and adjusts data transmission paths accordingly, allowing nodes to avoid congested areas and reduce unnecessary transmissions.
Solution Approach 2:
Wireless sensor nodes autonomously detect congestion conditions and independently switch to alternative parent nodes without requiring centralized control. Each node serves itself by monitoring its own transmission status and making intelligent decisions to avoid congestion, reducing power consumption while maintaining data collection effectiveness.
3Device complexity
If wireless sensor nodes have limited data transmission and storage capacity, then device complexity is reduced, but data collection reliability deteriorates when congestion occurs
Solution Approach 1:
The patent implements dynamic parent node switching where wireless sensor nodes can change their connection destination based on real-time network conditions. When congestion is detected or a parent node fails, nodes dynamically select new parent nodes to maintain data transmission efficiency and reduce power consumption, making the network topology adaptable rather than static.
Solution Approach 2:
The patent employs preliminary actions by pre-establishing multiple potential parent node relationships and selection criteria. When congestion or failure occurs, nodes can immediately switch to pre-identified alternative parents without complex real-time calculations, maintaining reliability while keeping device complexity low.
Data Source
AI summary
According to one embodiment, a wireless communication device connected with a multi-hop network includes one or more processors. The processors communicate with a first parent node of the wireless communication device and with a child node of the wireless communication device. The processors transmit an instruction to restrict communication to the child node or do not receive data from the child node when receiving an abnormality notification indicating an abnormality from the first parent node.