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Design and Control System Setup of an E-Pattern Omniwheeled Cellular Conveyor

Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, Melaka 76100, Malaysia
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Machines 2021, 9(2), 43; https://doi.org/10.3390/machines9020043
Received: 30 December 2020 / Revised: 31 January 2021 / Accepted: 7 February 2021 / Published: 20 February 2021
(This article belongs to the Section Automation Systems)
The addition of omnidirectional capability and modularization to conveyor systems is an exciting and trending topic in current conveyor research. The implementation of omnidirectional modular conveyors is foreseen as mandatory in the future of conveyor technologies due to their flexibility and efficiency. In this paper, an E-pattern omniwheeled cellular conveyor (EOCC) is first introduced. Camera and image processing techniques are utilized to achieve a centralized system, which is more robust than conventional decentralized systems. In order for cartons to maneuver across the EOCC, a unique method for activation of the actuators is subsequently designed. Next, the nominal characteristic of the EOCC is analyzed based on the step responses, which then inspire the proposal of four simple controllers, namely the P–P–P–P controller, tTS + P–P–P–P controller, P–P–PD–PD controller, and tTS + P–P–PD–PD controller (P for proportional, D for derivative and tTS for time-shifting), which are used to evaluate the tracking performance of the EOCC in diagonal-shaped, ∞-shaped (horizontal lemniscus), and 8-shaped (vertical lemniscus) trajectories. The results show that there is no clear winner among the controllers, with each having its own advantages and disadvantages. Nevertheless, such findings provide clearer insight into the EOCC, which is vital for future works. After all, the introduction of the EOCC system in this paper is also anticipated to elevate the benchmarks and competitiveness in the current field of modern conveyor technologies. View Full-Text
Keywords: cellular conveyor; omnidirectional conveyor; proportional–derivative controller; conveyor technologies cellular conveyor; omnidirectional conveyor; proportional–derivative controller; conveyor technologies
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MDPI and ACS Style

Keek, J.S.; Loh, S.L.; Chong, S.H. Design and Control System Setup of an E-Pattern Omniwheeled Cellular Conveyor. Machines 2021, 9, 43. https://doi.org/10.3390/machines9020043

AMA Style

Keek JS, Loh SL, Chong SH. Design and Control System Setup of an E-Pattern Omniwheeled Cellular Conveyor. Machines. 2021; 9(2):43. https://doi.org/10.3390/machines9020043

Chicago/Turabian Style

Keek, Joe S., Ser L. Loh, and Shin H. Chong 2021. "Design and Control System Setup of an E-Pattern Omniwheeled Cellular Conveyor" Machines 9, no. 2: 43. https://doi.org/10.3390/machines9020043

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