Control System Design Based on Modern Embedded Systems

Khamis, Ahmed; Zydek, Dawid; Borowik, Grzegorz; Naidu, D. Subbaram

doi:10.1007/978-3-642-53862-9_62

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…Moreover, reconfigurable devices have the added benefit of fostering interoperability by easily customizing the supported fieldbus protocols on the field and remotely with the possibility of using partial reconfiguration techniques, being even promoted as intelligent and upgradeable gateways, seeking to harmonize the current limitation in the industrial ecosystem [14]. In the next section, we analyze some of the current efforts in the creation of intelligent electronic devices and control subsystems in reconfigurable platforms for a variety of applications; some emphasis is given at the end of the section as well not only to the substitution of PLC devices by FPGAs [15] but also to more general applications as digital controllers for a variety of industrial applications.…”

Section: Context and Motivationmentioning

confidence: 99%

Real-Time Control System for Improved Precision and Throughput in an Ultrafast Carbon Fiber Placement Robot Using a SoC FPGA Extended Processing Platform

Ochoa-Ruiz

Bevan

Lamotte

et al. 2017

International Journal of Reconfigurable Computing

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We present an architecture for accelerating the processing and execution of control commands in an ultrafast fiber placement robot. The system consists of a robotic arm designed by Coriolis Composites whose purpose is to move along a surface, on which composite fibers are deposed, via an independently controlled head. In first system implementation, the control commands were sent via Profibus by a PLC, limiting the reaction time and thus the precision of the fiber placement and the maximum throughput. Therefore, a custom real-time solution was imperative in order to ameliorate the performance and to meet the stringent requirements of the target industry (avionics, aeronautical systems). The solution presented in this paper is based on the use of a SoC FPGA processing platform running a real-time operating system (FreeRTOS), which has enabled an improved comamnd retrieval mechanism. The system's placement precision was improved by a factor of 20 (from 1 mm to 0.05 mm), while the maximum achievable throughput was 1 m/s, compared to the average 30 cm/s provided by the original solution, enabling fabricating more complex and larger pieces in a significant fraction of the time.

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Section: Context and Motivationmentioning

confidence: 99%

Real-Time Control System for Improved Precision and Throughput in an Ultrafast Carbon Fiber Placement Robot Using a SoC FPGA Extended Processing Platform

Ochoa-Ruiz

Bevan

Lamotte

et al. 2017

International Journal of Reconfigurable Computing

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“…The configuration place mp 8 , which can be redundant during next steps of logic design, points to the third order subnet. The configuration places {mp 3 , mp 6 , mp 7 , mp 9 , mp 10 , mp 11 } are sufficient to represent the activity of all Petri net places, which are dominated by them.…”

Section: Sample Application For Logic Controllermentioning

confidence: 99%

“…In (3). The conjunction describing t place p m consists of affirmation or negation of variables q r th are used to store the code of this place.…”

Section: Formation Of Conjunctionsmentioning

confidence: 99%

“…The paper presents some effective techniques used for rigorous computer-based design, synthesis and verification of application specific logic controllers (ASCLs) [1][2][3][4], which are dedicated to safety critical application. Typically, reliability is increased if algorithms of control system are designed by different teams and with the use of different methods.…”

Section: Introductionmentioning

confidence: 99%

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Dual synthesis of Petri net based application specific logic controllers with increased safety

Tkacz¹,

Bukowiec²,

Adamski³

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. In the paper, design flow of the application specific logic controllers with increased safety by means of Petri nets is proposed. The controller architecture is based on duplicated control unit and comparison results from both units. One specification of control algorithm is used by means of Petri net for both units. The hardware duplication is obtained during dual synthesis process. This process uses two different logic synthesis methods to obtain two different hardware configurations for both control units. Additionally, the dual verification is applied to increase reliability of the control algorithm. Such design flow simplifies the process of realization of control systems with increased safety.

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Nonlinear Optimal Tracking With Incomplete State Information Using State Dependent Riccati Equation

Khamis

Naidu

Zydek

2015

Progress in Systems Engineering

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Control System Design Based on Modern Embedded Systems

Cited by 11 publications

References 13 publications

Real-Time Control System for Improved Precision and Throughput in an Ultrafast Carbon Fiber Placement Robot Using a SoC FPGA Extended Processing Platform

Real-Time Control System for Improved Precision and Throughput in an Ultrafast Carbon Fiber Placement Robot Using a SoC FPGA Extended Processing Platform

Dual synthesis of Petri net based application specific logic controllers with increased safety

Nonlinear Optimal Tracking With Incomplete State Information Using State Dependent Riccati Equation

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