Nowadays, the use of XML as a description language has become state of the art within the automation and control domain. Use cases and application scenarios are manifold, resulting in heterogeneous XML document struct...
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Nowadays, the use of XML as a description language has become state of the art within the automation and control domain. Use cases and application scenarios are manifold, resulting in heterogeneous XML document structures. However, a common basic model for XML applications suitable for the automation domain is still lacking. This paper describes requirements and principle structures for such a common model, which has been developed for use within PROFIBUS and PROFINET systems. An application example is included to prove the feasibility of the content model and the infrastructure definitions.
In this paper, we develop a new control method for a P-R-R type planar parallel manipulator, termed adaptive synchronized (A-S) control. The novelty of the proposed A-S control, a combination of synchronized control a...
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This paper deals with the analysis of acoustic biomedical signals, especially the infant cry. A plenty of important information is comprehended in the infant cry (e.g. the mood of the baby, the condition of the organ ...
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ISBN:
(纸本)0889864780
This paper deals with the analysis of acoustic biomedical signals, especially the infant cry. A plenty of important information is comprehended in the infant cry (e.g. the mood of the baby, the condition of the organ of speech, other physiological parameters, etc.). As these factors are not severable in the reality, this information has to be treated together during the acoustical analysis. Authors judge it necessary to adopt algorithms from other fields of the acoustic technique (e.g. audio segmentation);to digitize former analogue methods of examination (e.g. noting down the melody of the cry);and to combine these techniques. This study summarizes the major procedures and parameters by the analysis of the infant cry.
This study discusses a learning algorithm for autonomous robots that has five characteristics including autonomous exploration of effective output, low calculation costs, capability for multi-tasking, reusing past kno...
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The present paper proposes the design of a stable state-feedback fuzzy controller for a flexible robotic arm. The fuzzy controller is designed employing parallel distributed compensation philosophy where one local con...
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The present paper proposes the design of a stable state-feedback fuzzy controller for a flexible robotic arm. The fuzzy controller is designed employing parallel distributed compensation philosophy where one local control rule is designed for each local fuzzy plant rule. A neuro-fuzzy architecture is employed to derive the approximate state-space model for the flexible robotic arm on the basis of experimental data collected from the real plant. A stable fuzzy controller is designed by recasting the stability conditions in form of linear matrix inequalities and hence deriving the appropriate control gains. The suitability of the control design strategy is successfully demonstrated by implementing it for the real robotic arm.
The growing complexity of today39;s embedded real-time systems demands new methods and tools to manage the problems of design, analysis, integration, and validation of complex systems. Focusing this issue, the prese...
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The growing complexity of today's embedded real-time systems demands new methods and tools to manage the problems of design, analysis, integration, and validation of complex systems. Focusing this issue, the present paper describes an object-oriented platform-based design process for real-time embedded systems. The proposed approach promotes a smooth transition from high-level RT-UML specification to the final embedded system, which is composed by hardware and software components. The transition from higher to lower abstraction levels is facilitated by the use of an OO real-time API, whose underlying facilities can be optimized according to the application needs and selected platform. An integrated toolset is used to support the intermediate steps of the design process. In order to illustrate the proposed approach and related toolset the design of an embedded real-time automation system for an "intelligent" wheelchair is presented. The paper also includes a performance evaluation of the implemented control and automation system for the wheelchair application, with focus on timing requirements.
New fast moving markets demand flexible, adaptable production facilities to allow manufacturing companies a fast reaction on consumer needs. Reconfigurable manufacturing systems provide a solution for these problems. ...
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New fast moving markets demand flexible, adaptable production facilities to allow manufacturing companies a fast reaction on consumer needs. Reconfigurable manufacturing systems provide a solution for these problems. Currently used software architectures have not been designed for providing an infrastructure for such manufacturing systems. With the new standard IEC 61499 the international Electrotechnical Commission provides an architecture for flexible distributed control systems. But it leaves open points regarding real-time execution and reconfiguration in realtime. This work focuses on real-time execution of IEC 61499 applications. It describes all execution elements of IEC 61499 within a device. Different implementation and scheduling approaches are compared and discussed. A first real-time scheduling approach for IEC 61499 control applications allows executing applications with periodic real-time constraints in parallel to unconstrained applications. It serves as a base for an enhanced full featured IEC 61499 real-time execution support.
The robotics soccer game is a standard task platform, the soccer robot is one form of the artificial life body. Based on this platform, in terms of the action-selection model of artificial life, carries a comparable a...
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ISBN:
(纸本)0819460745
The robotics soccer game is a standard task platform, the soccer robot is one form of the artificial life body. Based on this platform, in terms of the action-selection model of artificial life, carries a comparable and valid study. Firstly, this paper analyses the action layer and the action type of the soccer robot. Then, according to the behavior selection model of artificial life body based on priority degree, improves the action selection model of the soccer robot. Finally, builds the decision-making system of soccer robot based on the model, and this system has been applied in the actual games of soccer robot, the result indicates that it is workable and efficient.
The research described a method for localizing a mobile robot in the working environment using a vision system and VRML. The robot identifies landmarks in the environment and carries out the self-positioning. The imag...
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ISBN:
(纸本)0819460745
The research described a method for localizing a mobile robot in the working environment using a vision system and VRML. The robot identifies landmarks in the environment and carries out the self-positioning. The image-processing and neural network pattern matching techniques were employed to recognize landmarks placed in a robot working environment. The robot self-positioning using vision system was based on the well-known localization algorithm. After self-positioning, the 2D scene of the vision is overlaid with the VRML scene. How to realize the self-positioning was described. Also the result of overlapping between the 2D scene and VRML scene was shown. In addition, the advantage expected from overlapping both scenes described.
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