Author:
Grimshaw Alex,Oyekan John
Abstract
The current pandemic has highlighted the need for rapid construction of structures to treat patients and ensure manufacturing of health care products such as vaccines. In order to achieve this, rapid transportation of construction materials from staging area to deposition is needed. In the future, this could be achieved through automated construction sites that make use of robots. Toward this, in this paper a cable driven parallel manipulator (CDPM) is designed and built to balance a highly unstable load, a ball plate system. The system consists of eight cables attached to the end effector plate that can be extended or retracted to actuate movement of the plate. The hardware for the system was designed and built utilizing modern manufacturing processes. A camera system was designed using image recognition to identify the ball pose on the plate. The hardware was used to inform the development of a control system consisting of a reinforcement-learning trained neural network controller that outputs the desired platform response. A nested PID controller for each motor attached to each cable was used to realize the desired response. For the neural network controller, three different model structures were compared to assess the impact of varying model complexity. It was seen that less complex structures resulted in a slower response that was less flexible and more complex structures output a high frequency oscillation of the actuation signal resulting in an unresponsive system. It was concluded that the system showed promise for future development with the potential to improve on the state of the art.
Subject
Artificial Intelligence,Computer Science Applications
Reference40 articles.
1. AU ball on plate balancing robot20312034
AliE.
AphiratsakunN.
2015
2. Cable suspended robots: feedback controllers with positive inputs
AlpA.
AgrawalS.
2002
3. DeepVoice: real-time neural text-to-speech;Arik,2017
4. Purposive behaviour acquisition for a real robot by vision-based reinforcement learning;Asada;Mach. Learn.,1996
5. Mechatronic design of a ball-on-plate balancing system;Awtar;Mechatronics,2002
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献