scholarly journals Performance Measurement of a Mobile Manipulator-on-a-Cart and Coordinate Registration Methods for Manufacturing Applications

2021 ◽  
Author(s):  
Omar Aboul-Enein ◽  
Roger Bostelman ◽  
Ya-Shian Li-Baboud ◽  
Mili Shah
Author(s):  
Vivek Annem ◽  
Pradeep Rajendran ◽  
Shantanu Thakar ◽  
Satyandra K. Gupta

Abstract Increasing the level of automation in material handling tasks in small volume production operations can improve human productivity and overall manufacturing system performance. In this paper, we present a teleoperated mobile manipulator system that can be used for tending machines and transporting parts in manufacturing applications. The remotely located human operator can interact with the semi-autonomous mobile manipulator by giving it high level instructions. We have incorporated several sensors on the system to ensure safe teleoperation where the operator gives only high level motion goals to the mobile manipulator, such as waypoints for mobile base motion, and interactive marker poses for the manipulator motion. The point clouds from multiple depth cameras are used for mapping the environment. The robot plans for autonomous motions between the given way-points ensuring that the resulting motions are collision-free. We have conducted case studies with two different types of parts to be extracted from a 3D printer. The system is tested by multiple users. They were successful in completing tasks in a reasonable amount of time using our interface.


2017 ◽  
Author(s):  
Roger Bostelman ◽  
Ya-Shian Li-Baboud ◽  
Steve Legowik ◽  
Tsai Hong ◽  
Sebti Foufou

2017 ◽  
Vol 92 (1) ◽  
pp. 65-83
Author(s):  
Roger Bostelman ◽  
Sebti Foufou ◽  
Tsai Hong ◽  
Mili Shah

Author(s):  
Omar Aboul-Enein ◽  
Yaping Jing ◽  
Roger Bostelman

Abstract Computation Tree Measurement Language (CTML) is a newly developed formal language that offers simultaneous model verification and performance evaluation measures. While the theory behind CTML has been established, the language has yet to be tested on a practical example. In this work, we wish to demonstrate the utility of CTML when applied to a real-world application based in manufacturing. Mobile manipulators may enable more flexible, dynamic workflows within industry. Therefore, an artifact-based performance measurement test method for mobile manipulator robots developed at the National Institute of Standards and Technology was selected for evaluation. Contributions of this work include the modeling of robot tasks implemented for the performance measurement test using Petri nets, as well as the formulation and execution of sample queries using CTML. To compare the numerical results, query support, ease of implementation, and empirical runtime of CTML to other temporal logics in such applications, the queries were re-formulated and evaluated using the PRISM Model Checker. Finally, a discussion is included that considers future extensions of this work, relative to other existing research, that could potentially enable the integration of CTML with Systems Modeling Language (SysML) and Product Life-cycle Management (PLM) software solutions.


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