Motor State Mapping With Speed-Output Grid for Overheating Margin
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Solution Overview
Problem
Existing motor monitoring systems fail to provide a clear understanding of operational safety and margin, making it difficult to adjust settings for efficient machining while minimizing overheating risks.
Innovation Solution
A motor monitoring device that plots a graph with markers representing rotation number and output value, divided into unit areas with varying display modes based on predetermined indices, allowing for easy interpretation of motor state and suggesting adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If motor speed and output settings are adjusted to maximize efficient machining, then productivity is improved, but the margin for overheating is reduced making it difficult to determine operational safety
Solution Approach 1:
The graph area is divided into multiple unit areas using a grid pattern, allowing the monitoring system to segment the operational space into manageable zones. Each unit area can be independently analyzed and displayed with specific markers, enabling operators to clearly understand the motor's current state relative to safe operating boundaries while maximizing productivity settings.
2Loss of information
If only the time until overheating is estimated, then information about overheating risk is provided, but easy understanding of operational safety and margin is not achieved
Solution Approach 1:
The system transitions from one-dimensional time-based overheating estimation to a two-dimensional graphical representation that plots rotation number against output value. This dimensional expansion provides both temporal information and spatial context, allowing operators to visually assess operational safety margins and understand the motor's state in relation to safe operating zones.
Solution Approach 2:
Markers on the graph change display modes (such as color, size, or shape) based on predetermined indices that indicate the motor's operational state and proximity to overheating risks. This visual encoding makes it easy for operators to quickly assess safety margins and understand the motor's current condition without complex data interpretation.
Data Source
AI summary
According to one embodiment of the present disclosure, a motor monitoring device that can easily ascertain the state of a motor comprises a rotational speed acquisition unit that acquires the rotational speed of a motor that operates in accordance with an operation program, an output value acquisition unit that acquires an output value for the motor, and a graph display unit that plots a marker that represents a combination of the rotational speed and the output value at a graph area where one axis is the rotational speed and the other axis is the output value. The graph display unit has a unit area setting unit that sets a plurality of unit areas that divide the graph area into a grid and a format modification unit that modifies the display format of the marker by unit area in accordance with a prescribed indicator.