Wireless Transmission Device Link Group Fault Notification

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Solution Overview

Problem

Existing wireless transmission devices fail to report fault information to devices that are not directly connected to the affected transmission line, limiting the notification of faults across networks composed of both wired and wireless transmission lines.

Innovation Solution

The solution involves grouping connected transmission lines into link groups and sharing status information among adjacent devices, allowing fault information to be reported and managed across the network, even to devices not directly connected.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If fault information is reported only to directly connected devices, then the notification system remains simple and direct, but fault information cannot be propagated to devices not directly connected to the affected transmission line

Engineering Contradiction:

Improvefault information propagationVSAvoidnotification system complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The network is segmented into link groups where each wireless transmission device and its connected transmission lines form a manageable unit. This segmentation allows fault information to be propagated hierarchically through group representatives rather than requiring direct peer-to-peer communication between all devices, thus extending information reach without proportionally increasing system complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Wireless transmission devices act as intermediaries that receive fault information from directly connected devices and re-transmit it to other devices in the network. This intermediary mechanism enables indirect fault notification across multiple hops, allowing fault information to reach devices not directly connected to the affected transmission line while maintaining a relatively simple notification protocol at each node

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If transmission lines are grouped into link groups spanning multiple devices, then fault information can be shared across the network, but the complexity of managing link groups across adjacent devices increases

Engineering Contradiction:

Improvenetwork fault managementVSAvoidlink group management

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Transmission lines connected to different wireless transmission devices are merged into unified link groups. By treating lines from multiple devices as a single logical group, the system achieves comprehensive fault coverage across the network while simplifying management through unified group identification and status tracking rather than requiring complex inter-device coordination protocols

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The link group structure serves multiple functions simultaneously: it enables fault information sharing, provides a framework for coordinated link cutting control, and establishes a basis for network-wide status monitoring. This multi-functionality reduces the need for separate management mechanisms for each function, thereby managing complexity while achieving reliable fault management

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Loss of information

If fault notification is extended to all devices in the network, then complete fault awareness is achieved, but the communication overhead and processing load increase

Engineering Contradiction:

Improvefault information completenessVSAvoidcommunication overhead

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The network is divided into link groups that serve as communication units for fault information. Instead of broadcasting to all individual devices, fault notifications are propagated through the segmented structure of link groups, reducing the total number of communication transmissions required while ensuring complete fault awareness across all relevant devices

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Fault information is propagated to devices that need to know about the fault for operational decision-making, rather than uniformly to all devices in the network. This partial action approach focuses communication resources on devices within or adjacent to affected link groups, achieving complete fault awareness where necessary while minimizing unnecessary communication overhead

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS10461995B2Wireless transmission device, fault notification method, and program

Publication Date: 2019.10.29 NEC CORP

AI summary

A wireless transmission device is configured to group together as a first link group transmission lines connected to the wireless transmission device and a transmission lines connected to adjacent devices that are wireless transmission devices adjacent to the wireless transmission device and to share status information of transmission lines of the first link group with the adjacent devices.