Industrial Machine Variable Rewriting for Fast Accurate Control

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Solution Overview

Problem

Existing industrial machine control systems face challenges in quickly and accurately executing control commands due to time-consuming analysis processes and potential errors in reflecting analysis results, leading to inefficiencies and inaccuracies in machine operations.

Innovation Solution

A production system comprising a first industrial machine configured to control a second industrial machine based on multiple variables, with an input module for sending control commands and a rewriting module that updates rewritable variables, ensuring timely and accurate execution of control commands by determining input conditions and using a determination module to manage variable matching and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If control commands are processed through traditional analysis processes, then accuracy can be maintained, but execution time increases and productivity decreases

Engineering Contradiction:
Improvecontrol command accuracyVSAvoidcommand execution speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent segments the control system into multiple independent units (first industrial machine, second industrial machine, control circuits) that can operate autonomously. Each unit has dedicated storage areas and rewriting modules, allowing parallel processing of control commands without centralized bottlenecks, thus improving execution speed while maintaining accuracy through distributed verification.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary actions by pre-defining storage areas (first storage, second storage, third storage) and establishing rewriting rules before control commands are issued. Variables are pre-configured with their storage locations and rewriting conditions, enabling immediate execution upon command receipt without time-consuming analysis or decision-making during runtime.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If traditional control systems are used, then system stability is maintained, but adaptability to new control commands decreases

Engineering Contradiction:
Improvesystem stabilityVSAvoidcontrol command adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic adaptability through the rewriting module that can modify variable values based on incoming control commands. The system transitions from static pre-programmed control to dynamic reconfigurable control, where the first industrial machine can adapt its operation by rewriting variables in real-time while maintaining overall system stability through structured storage areas and controlled rewriting processes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system enables adaptability by allowing parameter changes through the rewriting of variables. The control commands modify variable values (parameters) stored in the storage areas, enabling the first industrial machine to adapt its behavior. The structured approach with dedicated storage areas ensures that parameter changes are controlled and systematic, maintaining stability while achieving versatility.

Inventive Principle:
Principle #35Parameter changes

3Loss of information

If multiple storage areas are used for variable management, then data organization improves, but device complexity increases

Engineering Contradiction:
Improvevariable management accuracyVSAvoidstorage structure complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent divides the storage system into three distinct segments: first storage (for variable definitions), second storage (for current variable values), and third storage (for rewriting buffers). This segmentation prevents data confusion and loss by assigning specific functions to each storage area, while the modular structure makes the complexity manageable through clear separation of concerns.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second storage area acts as an intermediary between the first storage (variable definitions) and the third storage (rewriting operations). This intermediary structure facilitates organized data flow and transformation, reducing information loss by providing a controlled transition zone. The intermediary storage simplifies the overall complexity by creating a structured buffer zone that manages the interaction between different storage functions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3879366B1Production system, control method, and program
Publication Date: 2023.10.11 YASKAWA DENKI KK
  • EP3879366B1 patent drawingFigure 1
  • EP3879366B1 patent drawingFigure 2
  • EP3879366B1 patent drawingFigure 3

AI summary

Provided is a production system (1) including a first industrial machine (20) configured to control a second industrial machine (30) based on a plurality of variables. An input module (103) is configured to input, to the first industrial machine (20), a control command relating to an operation of at least one of the first industrial machine (20) or the second industrial machine (30). A rewriting module (204) of the first industrial machine (20) is configured to rewrite, based on the control command, at least one variable defined as a rewritable variable among the plurality of variables.