Short answer

Designers and engineers should consider developing standardized, reconfigurable test fixtures and integrating high-accuracy motion capture systems when evaluating the performance of mobile robotic systems for precise tasks.

Field: Modelling
Source: Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2015)
Method: Experimental validation and metrology
Evidence: Strong effect

A novel, reconfigurable fixture coupled with a motion capture system provides a robust method for quantifying the reproducible performance of mobile manipulators in tasks like assembly. This modelling research insight is drawn from a 2015 study published in Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. Using Experimental validation and metrology, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers and engineers should consider developing standardized, reconfigurable test fixtures and integrating high-accuracy motion capture systems when evaluating the performance of mobile robotic systems for precise tasks.

Study

ModellingHigh ImpactStrong effect

Reconfigurable Fixture Enables Precise Mobile Manipulator Performance Measurement

A novel, reconfigurable fixture coupled with a motion capture system provides a robust method for quantifying the reproducible performance of mobile manipulators in tasks like assembly.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2015

Key Findings

01The reconfigurable mobile manipulator artifact (RMMA) proved useful for static performance measurement.
02The motion capture system provided accurate ground truth for validating the mobile manipulator's performance.
03The developed method supports the development of standard test methods for mobile manipulator applications.

Application

Design takeaway

How to apply

When designing or evaluating a mobile manipulator for an assembly task, create a reconfigurable test rig and use a motion capture system to precisely measure its positioning accuracy and repeatability.

Project actions

01When designing a test for a robotic system, think about how to make the test repeatable and how to accurately measure its performance.
02Consider using motion tracking technology if precise position and orientation data are needed.

Method & Evidence

AimTo develop and validate a method for measuring the reproducible performance of mobile manipulators using a reconfigurable artifact and a motion capture system.

MethodExperimental validation and metrology

ProcedureAn automated guided vehicle with a robot arm was programmed to interact with a reconfigurable mobile manipulator artifact (RMMA). A multi-camera motion capture system, calibrated with a 6-DOF metrology bar, was used as ground truth to measure the manipulator's pose estimation and other performance metrics as it detected targets on the RMMA.

ContextRobotics, Automation, Manufacturing, Metrology

Variables

IVConfiguration of the RMMA, programmed movement paths

DVPose estimation accuracy, target detection success rate, manipulator position and orientation repeatability

CVMotion capture system calibration, environmental conditions, robot arm speed and acceleration

Strengths & Limitations

Strengths

+Provides a quantitative and objective method for performance assessment.
+Utilizes a validated ground truth measurement system (motion capture).

Limitations

The complexity and cost of motion capture systems can be a barrier. The RMMA's reconfigurability might have limitations in simulating all possible real-world scenarios.

Reliability & validity

The use of a calibrated motion capture system as ground truth enhances the validity of the measurements. Repeatability of the robot's movements contributes to reliability.

Think critically

How might the complexity of the RMMA's reconfigurability impact the generalizability of the findings to different assembly tasks?

Design Principles

"Quantifiable performance metrics are essential for validating and improving the reliability of complex robotic systems."

Accurate performance measurement is crucial for ensuring the reliability and effectiveness of automated systems in manufacturing and logistics. This research offers a standardized approach to testing, which can lead to more predictable and dependable robotic operations.

What This Means for Your Design

This study shows how to build a special setup with a moving robot and cameras to accurately test how well the robot can do its job over and over again.

How to use in your project

1.This research can inform the methodology section of a design project by providing a framework for performance testing and validation of robotic prototypes.

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Quick Cite

Paragraph starter

The methodology employed in this research, utilizing a reconfigurable artifact and a motion capture system for performance measurement of mobile manipulators, offers a robust framework for validating the accuracy and repeatability of robotic systems in design projects.

Source

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Performance measurement of mobile manipulators

journal · 2015

View source

Questions About This Research

What does the research say about reconfigurable fixture enables precise mobile manipulator performance measurement?: Designers and engineers should consider developing standardized, reconfigurable test fixtures and integrating high-accuracy motion capture systems when evaluating the performance of mobile robotic systems for precise tasks. Evidence: Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2015).
Why does "Reconfigurable Fixture Enables Precise Mobile Manipulator Performance Measurement" matter for design?: Accurate performance measurement is crucial for ensuring the reliability and effectiveness of automated systems in manufacturing and logistics. This research offers a standardized approach to testing, which can lead to more predictable and dependable robotic operations.
How can designers apply this research?: Designers and engineers should consider developing standardized, reconfigurable test fixtures and integrating high-accuracy motion capture systems when evaluating the performance of mobile robotic systems for precise tasks.
What were the main findings?: The reconfigurable mobile manipulator artifact (RMMA) proved useful for static performance measurement.. The motion capture system provided accurate ground truth for validating the mobile manipulator's performance.. The developed method supports the development of standard test methods for mobile manipulator applications.
What research method was used?: Experimental validation and metrology.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2015 journal from Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE.
What should I do differently in my next project?: When designing or evaluating a mobile manipulator for an assembly task, create a reconfigurable test rig and use a motion capture system to precisely measure its positioning accuracy and repeatability.
What are the limitations?: The study focused on static performance measurement; dynamic performance and real-world task execution were not fully explored. Calibration of the motion capture system is critical for accuracy.