Wireless Node Stranding Detection and Path Restoration

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Solution Overview

Problem

Existing automated systems for resource management in wireless networks face challenges in managing power outages and restoring communication paths, leading to stranded nodes that are unable to communicate with their central nodes, which complicates fault detection and power restoration.

Innovation Solution

Bi-directional nodes in the wireless network are configured to detect stranding conditions, transmit stranding notifications, and establish new communication paths to central nodes, allowing for the determination of restoration plans based on received notifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If system devices are powered by the electrical distribution network, then power supply is cost-effective and reliable, but the system becomes dependent on the electrical distribution network which creates vulnerability to power outages and stranding conditions

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidsystem adaptability to power outages
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary actions by detecting stranding conditions before complete communication failure occurs. Nodes continuously monitor their ability to communicate with central nodes and detect stranding conditions early, allowing the system to prepare restoration plans in advance rather than reacting after complete failure.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where nodes transmit stranding notifications back to central nodes, providing real-time information about communication path failures. This feedback enables the central node to monitor network health and initiate restoration procedures based on actual system conditions.

Inventive Principle:
Principle #23Feedback

2Loss of information

If a fault occurs on the electrical distribution network, then power outage notification is needed, but determining the extent of the power outage and developing restoration schemes becomes difficult

Engineering Contradiction:
Improveinformation about power outage extentVSAvoidcomplexity of restoration scheme
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The system segments the network into individual nodes that can independently detect and report their stranding conditions. Each node operates autonomously to detect its own communication path status, dividing the complex problem of network-wide outage detection into manageable individual node assessments.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Stranding notifications serve as intermediary messages that carry information about communication path failures from affected nodes to central nodes. These notifications act as mediators that convey critical information without requiring complex direct communication between all network components.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If nodes remain powered after a fault but cannot communicate with their assigned central node, then the nodes become stranded, but establishing new communication paths adds system complexity

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidcommunication path management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Stranded nodes perform self-service by autonomously detecting their stranding condition and transmitting stranding notifications without requiring intervention from other nodes or central control. Each node independently monitors its own communication status and initiates its own restoration process.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system establishes new communication paths as a preliminary action before complete communication failure. By detecting stranding conditions early and initiating path reconfiguration procedures, the system prepares alternative communication routes in advance rather than waiting for total failure.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS7940679B2Power outage management and power support restoration for devices in a wireless network
Publication Date: 2011.05.10 ELSTER ELECTRICITY LLC
  • US7940679B2 patent drawing
  • US7940679B2 patent drawing
  • US7940679B2 patent drawing

AI summary

Techniques for power outage management and power support restoration for devices in a wireless network are disclosed herein. Such a wireless network may include a number of bi-directional nodes in bi-directional wireless communication with one or more central nodes. Each bi-directional node may have a wireless communication path to one of the central nodes that is either a direct path or an indirect path through one or more intermediate bi-directional nodes serving as relays. Each bi-directional node may be configured to detect when it has become stranded such that it can no longer communicate with its assigned central node via its assigned communication path, to determine a reason for its stranding, and to transmit a stranding notification and the reason therefore.