this paper describes a wireless network based control of a Khepera mobile robot moving in a distributed infrastructure. Due to critical dependence on wireless communication, a procedure for reconfiguration of the netw...
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ISBN:
(纸本)9789896740009
this paper describes a wireless network based control of a Khepera mobile robot moving in a distributed infrastructure. Due to critical dependence on wireless communication, a procedure for reconfiguration of the network is proposed as a possibility to maintain communication between control station and the mobile robot in a successful manner. the network handoff is made under a criterion that takes into account key application dependent performance parameters. the controlled system and the communication network are simulated respectively with Matlab/Simulink and TrueTime.
this paper proposes a new method for control car-like vehicles maneuvering. For this purpose, traditional planning and tracking algorithms has been modified in order to follow complex maneuvers in a frame of a distrib...
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ISBN:
(纸本)9789896740009
this paper proposes a new method for control car-like vehicles maneuvering. For this purpose, traditional planning and tracking algorithms has been modified in order to follow complex maneuvers in a frame of a distributed control architecture. thus, planning and tracking algorithm run in different platforms exchanging data in order to controlthe maneuvers performance.
Artifacts like motion blur are a common problem for vision systems on mobile robots, especially when operating under low light conditions or when using high-resolution sensors. In this contribution we present a scheme...
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ISBN:
(纸本)9789896740009
Artifacts like motion blur are a common problem for vision systems on mobile robots, especially when operating under low light conditions or when using high-resolution sensors. In this contribution we present a scheme for estimating the degree of motion artifacts, especially motion blur, present in a stream of individual camera images. A single quality estimate is derived per frame using data from an inertial measurement unit. Considering limited image processing capacity of resource-constrained mobile robots, we show a number of data processing strategies that are based upon the idea of congestion control by adaptive image rejection.
the paper presents a concept of intelligent hierarchical control for complex dynamical processes and suggests architecture of control system consisting of robust, adaptive, and self-organizing levels. Intelligent feat...
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ISBN:
(纸本)9789898111999
the paper presents a concept of intelligent hierarchical control for complex dynamical processes and suggests architecture of control system consisting of robust, adaptive, and self-organizing levels. Intelligent features of the proposed system are mostly concentrated at self-organizing level incorporated into self-learning, self-configuring, self-optimizing, and decision making algorithms. State-of-the-art at each level is described. Case studies have been chosen from the area of plasma control in tokamak-reactors.
automation and control of processes in a food industry is a very important aim. the main reasons are: guaranteeing a better quality of the final product, reducing cost time and improving the use of the raw materials. ...
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ISBN:
(纸本)9789896740009
automation and control of processes in a food industry is a very important aim. the main reasons are: guaranteeing a better quality of the final product, reducing cost time and improving the use of the raw materials. Specifically, drying and storage grain industries have plants which, in many cases, are out of phase. Besides, they are controlled by machine operators. Our work has consisted in developing a total and supervision automated system to control most of the processes. A first step has been to automate four cereal dryers in order to collect data. Subsequently, a control has been designed to get a constant value of moisture of the grain. At the same time, these data have been used to obtain a total traceability of the process.
In this paper, we develop robot auditory system including speaker recognition, sound source localization, and speech enhancement based on circular microphone array for home service robots. these techniques are concern...
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ISBN:
(纸本)9789896740009
In this paper, we develop robot auditory system including speaker recognition, sound source localization, and speech enhancement based on circular microphone array for home service robots. these techniques are concerned with audio-based Human-Robot Interaction (HRI) that can naturally interact between human and robot through audio information obtained from microphone array and multi-channel sound board. the robot platform used in this study is wever, which is a network-based intelligent home service robot. the experimental results show the effectiveness of the presented audio-based HRI components from the constructed speaker and sound localization database.
this paper offers alternative solutions to existing problems in inverted pendulum designs. three main problems can be listed as limited track length, hardware complexity and inappropriate control algorithm usage. Circ...
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ISBN:
(纸本)9789898111999
this paper offers alternative solutions to existing problems in inverted pendulum designs. three main problems can be listed as limited track length, hardware complexity and inappropriate control algorithm usage. Circularly moving cart was proposed to provide unlimited track length. In order to reduce the hardware complexity, the system was controlled by a microcontroller. Finally, fuzzy control was used for the control algorithm because of its efficiency, robustness and simplicity. Efficiency of the system is presented by carrying out experiments on developed inverted pendulum control system.
Competitiveness of a supply chains depends significantly on distribution center operations because it determines responsiveness and timeliness of deliveries to customers. this paper proposes a control algorithm for ro...
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ISBN:
(纸本)9789898111999
Competitiveness of a supply chains depends significantly on distribution center operations because it determines responsiveness and timeliness of deliveries to customers. this paper proposes a control algorithm for routing multiple out-bound trucks to customers spread over a wide geographical area, each occupying different volume in a truck, and having a different delivery time-window. Overall operations are also constrained by geographical locations of the customers in various zones and dissimilar truck capacities. Performance of the algorithm is tested using data from a distribution center located in Latin America.
In this paper, the response of a pneumatic transmission line is analysed through two different approaches. Boththe approaches, based on the same physical model, are able to simulate the dynamics of a pneumatic line, ...
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ISBN:
(纸本)9789896740016
In this paper, the response of a pneumatic transmission line is analysed through two different approaches. Boththe approaches, based on the same physical model, are able to simulate the dynamics of a pneumatic line, with finite volume ends. the first approach analytically provides the transients through an equation in a quasi-closed form;the second approach is based on a numerical procedure yielding the inversion of the Laplace transform by the application of a trapezoidal rule. the analysis of the mutual performances of the two approaches, in the frame of pneumatic systems normally operating in industrial automation, can be useful in terms of control of the response and could assist in the design of pneumatic systems.
the implementation of a recursive algorithm for the estimation of parameters of a linear single-input single-output errors-in-variables system is re-considered. the objective is to reduce the computational complexity ...
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ISBN:
(纸本)9789896740016
the implementation of a recursive algorithm for the estimation of parameters of a linear single-input single-output errors-in-variables system is re-considered. the objective is to reduce the computational complexity in order to reduce the computation time per recursion, which, in turn, will allow a wider applicability of the recursive algorithm. the technique of stationary iterative methods for least squares is utilised, in order to reduce the complexity from cubic to quadratic order with respect to the model parameters to be estimated. A numerical simulation underpins the theoretically obtained results.
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