Application in Composite Machine Using RBF Neural Network Based on PID Control
Jia Chunying,
Chen Yuchen,
Ding Zhigang
Issue:
Volume 2, Issue 6, December 2014
Pages:
100-104
Received:
10 November 2014
Accepted:
24 November 2014
Published:
28 November 2014
Abstract: In the absence of solvent composite machine, because the radius of drum winding and rewinding roller in the transmission process is changing. With the coiled material rolls diameter more and more large, and put the curly size getting smaller and smaller, this has the certain difficulty for the tension control. Therefore, good tension control is non solvent composite is very important. Analyzed the reason and the tension control mathematical model generation composite machine tension in the BOPP production line, for the constant tension control of composite machine, put forward a kind of improved PID control method based on RBF neural network. By the method of Jacobian information identification of RBF neural network, combined with the incremental PID algorithm to realize the self-tuning tension control parameters, control simulation and implementation of the model using Matlab software programming. The simulation results show that, the improved algorithm has better control effect than the general PID.
Abstract: In the absence of solvent composite machine, because the radius of drum winding and rewinding roller in the transmission process is changing. With the coiled material rolls diameter more and more large, and put the curly size getting smaller and smaller, this has the certain difficulty for the tension control. Therefore, good tension control is non...
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Performance Models Preventing Multi-Agent Systems from Overloading Computational Resources
Petr Kadera,
Petr Novak,
Vaclav Jirkovsky,
Pavel Vrba
Issue:
Volume 2, Issue 6, December 2014
Pages:
105-111
Received:
12 November 2014
Accepted:
27 November 2014
Published:
5 December 2014
Abstract: Multi-Agent Systems (MASs) suffer from low immunity against burst of arrival requests which can result in a permanent outage of such systems. This factor limits the suitability of MASs for control of real-world manufacturing systems with strict requirements on performance and reliability. This manuscript explains the origins of the performance degradation of MASs based on Contract-Net Protocol and proposes a method that protects the systems against the destructive effect of temporal overloads. The proposed method continuously observes the communication among agents and analyzes it in order to identify possible saturation of a system resource. If triggering a new action saturates a system resource, the carrying out of the action will be postponed. The impacts of the method are demonstrated on a test-bed consisted of six mini-computers Raspberry Pi. It shows that the proposed method avoids overloading of the system and thus guarantees a specific system throughput effectively and efficiently.
Abstract: Multi-Agent Systems (MASs) suffer from low immunity against burst of arrival requests which can result in a permanent outage of such systems. This factor limits the suitability of MASs for control of real-world manufacturing systems with strict requirements on performance and reliability. This manuscript explains the origins of the performance degr...
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Applied Research of RFID Middleware System Based on Hierarchical Structure
Issue:
Volume 2, Issue 6, December 2014
Pages:
112-116
Received:
18 December 2014
Accepted:
14 January 2015
Published:
6 February 2015
Abstract: RFID middleware system, as the nerve center of many RFID systems, is being more and more concerned on by the people. It plays a key role in the development of the entire RFID industry. Firstly, this paper briefly introduces the present situation of RFID middleware, and then focuses on data filtering, data aggregation and information transmission three important technologies. According to the function demand, the next section introduces the hierarchical design idea for RFID middleware system. Based on the layered design idea, we construct a hierarchy structure of RFID middleware and present a kind of enterprise class applied model, in which RFID event manager module is responsible for processing data streams and RFID information service module is responsible for system integration. This applied model is easy to build a new RFID middleware system provides a kind of reference. Simulation and practical tests prove that the middleware system can real-time reads the important information of tracked objects such as goods in storehouse, achieve a more efficient management and facilitate practical application for Internet of things technology.
Abstract: RFID middleware system, as the nerve center of many RFID systems, is being more and more concerned on by the people. It plays a key role in the development of the entire RFID industry. Firstly, this paper briefly introduces the present situation of RFID middleware, and then focuses on data filtering, data aggregation and information transmission th...
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