Notification Control Device for Safety Communication Alarm Association

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Solution Overview

Problem

In safety instrumented systems, operators face challenges in determining whether safety communication abnormalities and path abnormalities are caused by the same issue, as existing systems cannot associate alarms generated by different detection logics, leading to delayed troubleshooting due to time-consuming association processes.

Innovation Solution

A notification control device and system that includes communication status detectors for safety communication and path communication protocols, which generate and associate notification information with tag information, allowing for the determination of common causes and priority-based notification, and a restoration controller for collective updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple separate alarm notifications are generated for safety communication abnormalities and path abnormalities, then comprehensive monitoring coverage is improved, but operator workload and troubleshooting time increase due to inability to associate alarms

Engineering Contradiction:
Improvemonitoring coverageVSAvoidtroubleshooting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges multiple separate alarm notifications into a single integrated alarm by associating safety communication abnormalities with their underlying path abnormalities through common identification information. This combining approach maintains comprehensive monitoring coverage while reducing the number of separate alarms operators must process, thereby decreasing troubleshooting time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces identification information (tag information) as an intermediary element that links safety communication abnormalities with path abnormalities. This mediator enables the association between different alarm sources without requiring operators to manually correlate them, thus maintaining comprehensive monitoring while reducing operational burden.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If manual association of alarm information is performed using system configuration diagrams, then alarm correlation accuracy is improved, but operational efficiency deteriorates due to time-consuming association processes

Engineering Contradiction:
Improvealarm correlation accuracyVSAvoidoperational efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements self-service by enabling automatic association of alarm information through pre-configured identification information embedded in the system. The system automatically correlates safety communication abnormalities with path abnormalities without requiring operator intervention to manually match alarms using configuration diagrams, thus maintaining accuracy while improving operational efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent applies preliminary action by pre-configuring identification information and association rules during system setup. This preliminary configuration enables automatic alarm correlation during operation, eliminating the need for manual association processes while maintaining accurate alarm correlation.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If separate detection logics are used for safety communication and path communication, then detection specificity is improved, but information integration deteriorates due to lack of association between detected abnormalities

Engineering Contradiction:
Improvedetection specificityVSAvoidinformation integration
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent uses identification information as an intermediary that bridges separate detection logics. This mediator carries association data between safety communication detection and path communication detection, enabling each detection logic to maintain its specificity while the intermediary preserves and transmits the relationship information between detected abnormalities.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10880151B2Notification control device, notification control system, notification control method, and storage medium
Publication Date: 2020.12.29 YOKOGAWA ELECTRIC CORP
  • US10880151B2 patent drawing
  • US10880151B2 patent drawing
  • US10880151B2 patent drawing

AI summary

A notification control device includes a first communication status detector configured to detect a status of a first communication protocol of communication between a first device and a second device in a process control system, and a second communication status detector configured to detect a status of a second communication protocol of the communication. The first communication status detector inputs into an operation monitoring terminal first notification information to which tag information is added on the basis of notification common information in which a status of the first communication protocol, a status of the second communication protocol, and the tag information are associated and the detected status of first communication protocol. The second communication status detector inputs into the operation monitoring terminal second notification information to which the tag information is added on the basis of the notification common information and the detected status of second communication protocol.