Personal Area Network Node Power Failure Reconstruction
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Solution Overview
Problem
Existing systems for reconstructing personal area networks (PANs) after a power outage or failure are inefficient and time-consuming, requiring nodes to rediscover each other and reestablish communication paths, which can be computationally expensive and time-consuming.
Innovation Solution
Nodes store data about their parent nodes and communication paths before a failure, and upon power restoration, they transmit enhanced beacon requests on specific frequency channels to synchronize communication, allowing for rapid reconnection and network reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nodes remove connection information after power failure and attempt to form a new network upon power restoration, then network reconstruction can be performed with current systems, but the process becomes time consuming and computationally expensive
Solution Approach 1:
The system performs preliminary action by having child nodes store parent node identification information and channel hopping schedule data before power failure occurs. Upon power restoration, this pre-stored information enables immediate reconnection without time-consuming network discovery procedures, directly resolving the contradiction between reliability and time loss.
2Reliability
If nodes remove connection information after power failure and attempt to form a new network upon power restoration, then network reconstruction can be performed with current systems, but the process becomes computationally expensive
Solution Approach 1:
The system performs preliminary action by storing essential connection data (parent node identification and channel hopping schedule) before power failure. This pre-cached information eliminates the need for computationally intensive network discovery and synchronization algorithms after power restoration, directly reducing energy consumption while maintaining reconstruction reliability.
3Productivity
If nodes retain connection information after power failure, then network reconstruction becomes faster and less computationally expensive, but existing systems require removal of this information to ensure proper reconnection
Solution Approach 1:
The system performs preliminary action by maintaining connection information in child nodes across power cycles. This approach increases productivity by enabling immediate reconnection while managing device complexity through standardized data structures that store parent node identification and channel hopping schedules, making the complexity manageable and beneficial.
Data Source
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AI summary
Systems and methods are disclosed for reconstructing a personal area network ("PAN") after a failure in a system or network. A method can include detecting, by a node, a power failure in a system. The method can further include storing, by the node, data about a parent node in the system at a time of the power failure. The method can further include detecting, by the node, power restoration in the system and entering a restoration state in response to detecting the power restoration. The method can further include transmitting, by the node and to the parent node, an enhanced beacon request via a particular frequency channel associated with the parent node. The method can also include receiving, by the node, an acknowledgement response from the parent node via the frequency channel and receiving, by the node, an enhanced beacon request from the parent node via the frequency channel.