The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This work presents a method and technology of synthesis of direct and inverse neural network models of object control, and their hardware implementation of programmable logic integrated circuits, that will automate the process of synthesis of such models and shorten the time of development and research.
In ENEA Frascati research centre an experimental fusion machine called Frascati Tokamak Upgrade (FTU) is in operation since 1990. The plasma discharge phase of FTU is driven by the dedicated system FSC-U (Fast Sequence Control upgraded), which has been developed in order to send all the necessary commands to the power plants, feeding the toroidal and poloidal coils during the plasma discharge, meanwhile...
When learning different control related concepts and methods, simulation is often used as a training tool; but, it does not have some real time characteristics of implementation like dealing with coding and PC resources, supervision, and communications. In some cases, implementation cannot be carried away, since it involves hardware design and is expensive. The proposed solution in this paper involves...
The paper proposes a new approach for FPGA reconfiguration based on usage of the open-source synthesis and place-and-route tools. The well-known partial reconfiguration technologies assume pre-compilation of all required FPGA configurations by the designer. In autonomous intelligent control systems it can become quite a strong limitation, due to control law couldn't be changed on-board without using...
The design of embedded control systems is rapidly change during the last decade. Guaranteeing the safety of these systems is a very challenging topic. It is possible to identify two main factors that are involved in the control of those systems: Hardware/Software (HW-SW) codesign and dynamic reconfiguration. Furthermore, the use of an embedded operating system associated with a functional module library...
This work presents the development of a remote laboratory service and its application during the teaching of Control Systems subject of third course in a Telecommunication Technology and Service Engineering degree. The application was successful allowing the student to control the same components as remotely, in a similar way as they were in the laboratory. There was an elevated interest by the students,...
The high performance of control systems essentially depends on the accuracy of the readable information which make embedded systems more effective by the execution of any instruction. But the universe is full of random information that can be described as chaos. In one hand, soft computing can present a perfect solution for random activities in control systems. It adds a new point of view and optimized...
Fuzzy logic systems are widely used in literature for heuristic knowledge based system operation. However most of these systems operate on multiple input to provide a single output. In this paper we have introduced a scheme for implementation of single input single output (SISO) fuzzy logic approximation of PI controller to control a two input single output (TISO) system. In most systems controlled...
This paper presents the design of a distributed control system based on Hardware Petri nets with real time reconfigurable architecture. The system consists of a main computer unit and a lot of homogeneous reconfigurable controllers connected to a Wireless Local Area Network (WLAN). The control algorithm is implemented into an Field Programmable Gate Array (FPGA) circuit which is configured via a microcontroller...
In order to achieve the signal acquisition and control requirements of engine system, this paper designs a kind of high-speed multi-channel data acquisition card, which is built with Altera Cyclone series FPGA EP1C12Q240C8N as the main control chip, using VHDL to realize the real-time acquisition and output control for high-speed multi-channel analog and switch quantity, then the card communicate...
A FPGA-based center-controller for networked controlling and manipulating system of construction machinery was designed owing to its features of totally custom hardware and the principle of parallel processing as well as IP-cores duplicating technology. The proposed design implementation methods for hardware and software of signal acquisition and output module, communication module, information exchanging...
According to parameters adjustment problems of fractional order PID controller applied in time-varying, nonlinear, real-time demanding higher systems, an improved particle swarm optimization (PSO) algorithm is adopted to optimize fractional order PID controller parameters. Because of high complexity of PSO and long tuning time, the paper adopts FPGA and combined with external circuit to implement...
Fuzzy logic based control systems provide a simple and efficient method to control highly complex and imprecise systems. However, the lack of a simple hardware design that is capable of modifying the fuzzy controller's parameters to adapt for any changes in the operation environment, or behavior of the plant system limits the applicability of fuzzy based control systems in the automotive and industrial...
This paper discusses development of embedded controllers on a reconfigurable multiprocessor system using Field Programmable Gate Array (FPGA) technology. The system is reconfigurable in hardware and software in the sense that certain components may be reused in different applications; hence allowing rapid development of embedded control systems. Concurrent real-time operation can be achieved by utilizing...
In this paper the architecture of the MHD control system for the Frascati Tokamak Upgrade (FTU) is presented. A set of hardware consisting of FPGA and DSP modules on PXI bus for executing the control and estimation algorithms is proposed. Data communication among the hardware modules in both on-line experiment mode and off-line data acquisition has been described. A model predictive protection system...
The paper deals with the holistic modeling approach of a combined Photovoltaic and Wind power system. The method is using the DK5 modeling/design environment from Mentor Graphics and is based on the new Handel-C programming language. The goal of the work carried out was to achieve an optimized holistic digital control system design, followed by its rapid prototyping into a single Field Programmable...
Proportional-Integral-Derivative (PID) controllers are universal control structure and have widely used in automation systems, they are usually implemented either in hardware using analog components or in software using computer-based systems. In this work, we focused our works on building a multi-channel PID controller by Field Programmable Gate Arrays (FPGAs). Combining FPGA with high speed multi-channel...
In the future, Synthetic Aperture Radar (SAR) requires enhanced capabilities, such as all-weather and better resolving power, more widely used in sciences, etc. New system to improve the control and monitor capability is desired by the development of the carrying-platform and SAR itself. A fast and small control and monitor system has been developed and tested. It employs SOPC (System On Programmable...
The paper presents the outlines of a low cost design and implementation of Remote Controlled Flying Machine and the Field Programmable Gate Array (FPGA) implementation of Control System. Several criteria have been taken under consideration for keeping the cost as low as possible. The wind tunnel test of the flying machine proves its stability and effectiveness. On the other hand, the electronic controller...
The paper presents a new flexible architecture of an embedded control system for power electronics applications. The hardware part of the system is divided between a CPU module and a baseboard dedicated for target system arrangement, depending on application requirements. Flexibility of the configuration was achieved by using DSP/ARM/CPLD/FPGA components. The development line of unified CPUs and a...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.