Retroactive HMI Diagnostic Tool for Industrial Process Assessment

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Solution Overview

Problem

Conventional human-machine interfaces (HMIs) for industrial processes require simulated data for debugging and assessment, which may not accurately represent real-time conditions, limiting the effectiveness of diagnostic and debugging processes.

Innovation Solution

A diagnostic tool that feeds historical data to HMIs in a manner that mimics real-time data, allowing for true retroactive assessment and visualization of industrial processes, enabling process engineers to use actual data for debugging and training, and synchronizing data from multiple databases for comparative analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If simulated data is used for debugging and assessment in conventional HMI systems, then the diagnostic process can be performed, but the accuracy and realism of the assessment is compromised because simulated data may not accurately represent real-time conditions

Engineering Contradiction:
Improveassessment accuracyVSAvoiddiagnostic process simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent creates a copy of the real-time HMI environment that can process historical data as if it were real-time data. This allows engineers to perform retroactive assessment using actual process data while maintaining the familiar HMI interface and operational workflow, thus improving accuracy without sacrificing ease of operation

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system introduces an intermediary layer that sits between the historical data storage and the HMI interface. This intermediary translates historical data into formats compatible with real-time HMI processing, enabling accurate retroactive assessment while maintaining the simplicity of the existing HMI operational model

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If historical data is fed to HMI for retroactive assessment, then accurate diagnostic analysis is enabled, but additional system complexity is introduced for data synchronization and playback control

Engineering Contradiction:
Improvediagnostic reliabilityVSAvoidsystem architecture complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The HMI system is enhanced to perform multiple functions: it can process both real-time data and historical data through the same interface and processing logic. This multi-functionality allows reliable retroactive assessment without requiring a completely separate diagnostic system, thus improving reliability while limiting the increase in complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system prepares historical data in advance by storing it with appropriate time-stamping and metadata that enables later playback. This preliminary organization of data reduces the complexity of real-time data retrieval and synchronization during diagnostic operations

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple historical databases are synchronized for comparative analysis, then comprehensive process assessment is achieved, but data synchronization complexity and processing time increase

Engineering Contradiction:
Improvecomparative analysis capabilityVSAvoiddata processing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system uses periodic time-stamping and structured data organization that enables efficient synchronization of multiple databases. By organizing data in periodic intervals with consistent time references, the system can quickly align and compare data from multiple sources without excessive processing time

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS7831411B2Diagnostic tool for retroactive assessment of industrial process performance
Publication Date: 2010.11.09 ROCKWELL AUTOMATION TECH INC
  • US7831411B2 patent drawing
  • US7831411B2 patent drawing
  • US7831411B2 patent drawing

AI summary

An industrial control monitoring system provides visualization of historical data acquired from an industrial process in a manner that mimic real-time visualization of real-time data acquired from the industrial process. The monitoring system provides an operator interface that allows the operator to direct playback interactively, such as rewinding and forwarding of the playback.