Sequence Program Generation for Interlocking Production Line Timing
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Solution Overview
Problem
Existing methods for generating sequence programs for controlling production line devices, such as PLCs, struggle to accurately describe the interlocking operation timing of multiple units, especially when synchronizing signals and acknowledgment signals are involved, leading to difficulties in generating programs that operate units in an interlocking manner.
Innovation Solution
An information processing method and apparatus that acquire a time chart indicating operation lines and interlocking modes between operations, converting this data into a sequence program that synchronizes the operation timing of multiple control objects using graphical elements and signal triggers, allowing for precise interlocking relationships to be defined and translated into a sequence program.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a time chart is used to set sequential operation timing of each operation axis, then operation timing can be described, but it is difficult to describe interlocking operation timing between multiple units that exchange synchronizing signals and acknowledgment signals
Solution Approach 1:
The time chart is divided into multiple sheets, with each sheet dedicated to a specific unit or control object. This segmentation allows each sheet to focus on the specific operation timing of that unit while maintaining links to other units through interlocking relationships, making it easier to describe complex interlocking operations without confusion.
Solution Approach 2:
The patent introduces a new dimension to the time chart by adding interlocking relationship indicators that show connections between different units. This allows the time chart to represent not only temporal sequences but also the relational structure between multiple units, enabling accurate description of interlocking operations.
2Reliability
If multiple units are controlled to synchronously operate by exchanging synchronizing signals and acknowledgment signals, then coordinated operation is achieved, but existing time chart methods cannot adequately represent these interlocking relationships
Solution Approach 1:
The time chart visually represents the feedback loop between synchronizing signals and acknowledgment signals between units. By showing the sequential relationship where one unit sends a synchronizing signal and another unit responds with an acknowledgment signal, the patent preserves the complete interlocking relationship information that ensures reliable synchronized operation.
Solution Approach 2:
The time chart acts as an intermediary that visually mediates the complex interlocking relationships between multiple units. It translates the signal exchange patterns into a visual representation that preserves all relationship information, making it possible to understand and implement the synchronized operation control logic.
3Loss of time
If operation timing is set based on the same time base, then timing alignment is achieved, but it is difficult to generate sequence programs that operate units in an interlocking manner
Solution Approach 1:
The patent creates a visual copy of the interlocking relationship structure within the time chart itself. By representing the signal exchange patterns and interlocking relationships as visual elements in the time chart, it provides a template that can be directly translated into sequence program logic, reducing the complexity of program generation while maintaining accurate timing alignment.
Data Source
AI summary
An information processing method includes acquiring a time chart indicating operation lines corresponding to operations of a plurality of control objects and interlocking modes between the operations, and generating a sequence program corresponding to the operations of the plurality of control objects based on the time chart.