Robot Simulation With Moment-of-Inertia-Based Motion Reproduction
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Solution Overview
Problem
Conventional simulation techniques fail to accurately replicate the behavior of virtual objects on actual robots due to reduced reproducibility, leading to inaccurate simulation results.
Innovation Solution
A simulation device that includes a drawing unit to draw a virtual facility with movable portions and a calculation unit to compute physical quantities like moment of inertia, repeatedly calculating operation speeds to align virtual and actual robot operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional simulation techniques are used to calculate virtual object behavior, then calculation speed is maintained, but reproducibility of actual robot behavior deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting simulation parameters based on physical quantities. Specifically, the moment of inertia and operation speed are calculated and used to modify the simulation model parameters, allowing the virtual object's behavior to closely match the actual robot's behavior while maintaining calculation efficiency.
Solution Approach 2:
The patent replaces complex mechanical behavior modeling with physics-based calculations. Instead of using complicated mechanical simulation models, the invention uses moment of inertia calculations and operation speed computations to predict and replicate the actual robot's movement characteristics, achieving high reproducibility with simpler computational approaches.
2Measurement precision
If physical quantities like moment of inertia are computed to improve simulation accuracy, then behavior reproducibility improves, but calculation complexity increases
Solution Approach 1:
The calculation unit dynamically computes physical parameters such as moment of inertia and operation speed based on the virtual object's properties and movement state. These calculated parameters are then fed back into the simulation model to continuously adjust and improve the accuracy of behavior prediction without requiring overly complex computational structures.
Solution Approach 2:
The patent implements feedback by using the calculated operation speed and physical quantities to continuously refine the simulation results. The drawing unit visualizes the virtual object's movement based on calculated operation speeds, and these results feed back into adjusting the simulation parameters for improved accuracy in subsequent calculations, creating a closed-loop system that enhances precision iteratively.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves the reproducibility and accuracy of simulation results by considering physical quantities, aligning virtual robot operations with actual robot behavior.
Implementation Method 1
a calculation unit configured to compute a physical quantity including a moment of inertia acting on the movable portion when operating the movable portion
Data Source
AI summary
A simulation device comprises a drawing unit configured to draw a virtual facility corresponding to a facility in a virtual space, the virtual facility having a virtual movable portion corresponding to a movable portion of the facility; and a calculation unit configured to compute a physical quantity including a moment of inertia acting on the movable portion when operating the movable portion and to repeatedly calculate an operation speed of the virtual movable portion using the calculated physical quantity. The drawing unit draws a motion of the virtual movable portion using the calculated operation speed of the virtual movable portion.