Social interactions influence our thoughts, opinions and actions. In this paper, social interactions are studied within a group of individuals composed of influential social leaders and followers. Each person is assum...
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In this study, an active suspension system with multiple non-identical delayed resonators (DR) is proposed in order to, suppress vibrations that are caused by railway track irregularities. Mathematical models for a ra...
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ISBN:
(纸本)9781479956869
In this study, an active suspension system with multiple non-identical delayed resonators (DR) is proposed in order to, suppress vibrations that are caused by railway track irregularities. Mathematical models for a railway vehicle and track irregularities are given. In addition to this, methods on choosing the physical parameters and the design steps of multiple DR are mentioned. Simulations using the approximate mechanical parameters of a Shinkansen SKS300 train are made. Results and comparison with other methods are also given to evaluate the success of the proposed method.
Adaptive control of an Aerial Manipulation Vehicle is discussed here. The aerial manipulation vehicle consisting of a quadrotor and a robotic arm has a highly coupled dynamics. The nonlinear coupling introduces additi...
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ISBN:
(纸本)9781479956869
Adaptive control of an Aerial Manipulation Vehicle is discussed here. The aerial manipulation vehicle consisting of a quadrotor and a robotic arm has a highly coupled dynamics. The nonlinear coupling introduces additional forces and moments on the quadrotor which prevents it from precisely hovering at a position and tracking of reference trajectory. A decentralized control of robotic arm and quadrotor is considered. The robotic arm is controlled by a PID approach with acceleration feedback, and the quadrotor is controlled by PD method in the inner loop and adaptive position control in the outer loop. The proposed method successfully handles the problem of hover stabilization and trajectory tracking.
This paper studies the generalization of composite nonlinear feedback (CNF) control using arbitrary order set point filters, which focus on the initial stage of the transient response. The set point filters can be use...
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ISBN:
(纸本)9781479956869
This paper studies the generalization of composite nonlinear feedback (CNF) control using arbitrary order set point filters, which focus on the initial stage of the transient response. The set point filters can be used to provide more performance by shortening the rise and settling times of the controlsystem. Furthermore, the filters operate outside the feedback loop, and hence, they do not sacrifice loop robustness. The new method is illustrated by a benchmark problem found in an open literature. The simulation results show that the proposed method improves the set point response more than 10% in terms of settling time.
Recent studies have shown that adaptively regulating the sampling rate results in significant reduction in the computational resources of embedded software based control. Selecting a uniform sampling rate for a contro...
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ISBN:
(纸本)9781479956869
Recent studies have shown that adaptively regulating the sampling rate results in significant reduction in the computational resources of embedded software based control. Selecting a uniform sampling rate for a control loop is robust, but pessimistic for sharing processors among multiple control loops. Fine-grained regulation of periodicity achieves better resource utilization, but is hard to implement online in a robust way. However, an offline control theoretic analysis of the system illustrates the benefits of proper period selection for different modes. Such analysis reveals the necessity to automatically derive a multi-mode scheduler and converge on suitable periods for each mode. This paper proposes a methodology to automatically generate such a scheduler for an embedded real-time controlsystem leveraging its design attributes. The proposed method provides significant gains in computational efficiency without trading off the performance.
Notice of Violation of ieee Publication Principles "A Speedy Data Uploading Approach for Twitter Trend and Sentiment Analysis Using HADOOP" by Gaurav Digambarrao Rajurkar and Rajeshwari M Goudar in the Proce...
Notice of Violation of ieee Publication Principles "A Speedy Data Uploading Approach for Twitter Trend and Sentiment Analysis Using HADOOP" by Gaurav Digambarrao Rajurkar and Rajeshwari M Goudar in the Proceedings of the internationalconference on computing Communication control and Automation (ICCUBEA) pp 580 - 584 After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of ieee’s Publication Principles. This paper contains substantial duplication of original text from the paper cited below. The original text was copied without attribution (including appropriate references to the original author(s) and/or paper title) and without permission. Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article: "How-to: Analyze Twitter Data with Apache Hadoop" by Jon Natkins in the Cloudera engineering Blog http://***/blog/2012/09/analyzing-twitter-data-with-hadoop/ September 19, 2012 The current Analytics tools and models that are available in the market are very costly, unable to handle Big Data and less secure. The traditional Analytics systems takes a long time to come up with results, so it is not beneficial to use for Real Time Analytics. So, the proposed work resolves all these problems by combining the Apache Open Source platform which solves the issues of Real Time Analytics using HADOOP. It also provides scalability and reduced cost over analytics by using open Source Software. The work proposes to combine the Apache Open Source Modules and configure them to get the required result. This system also provide solution for speedy data downloading on HDFS by using source and sink (data ingestion) mechanism. The Hadoop is flexible and scalable architecture. The proposed work is based upon the phenomenon of combination of open source s
This paper presents a cell-based architecture with fault tolerance control unit. The main features of proposed model are a control unit can be used to take control over neighbor functional units when neighbor control ...
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ISBN:
(纸本)9781479956869
This paper presents a cell-based architecture with fault tolerance control unit. The main features of proposed model are a control unit can be used to take control over neighbor functional units when neighbor control units failed. In the approach considered a cell to be control layer and functional layer. A functional unit in the functional layer is used to perform operations of cells and support repairing and detecting faults in the control layer. A control unit in the control layer can be used to detect and repair faults in other control units in the control layer and its functional unit in the functional layer. Therefore, this strategy can take advantage of the internal resource. This paper shows how the model can be used to repair a control unit fault and a functional unit fault. The reliability analysis shows the improving fault tolerance of this model.
Most of the multivariable controlsystems include interactions between different input-output pairs. The control problem becomes more complex in case of significant interactions because single loop control solutions c...
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ISBN:
(纸本)9781479956869
Most of the multivariable controlsystems include interactions between different input-output pairs. The control problem becomes more complex in case of significant interactions because single loop control solutions cannot be applied directly. In such cases, reducing the interactions with a pre-compensator can be accepted as the first step of design process. In this study, two input two output systems are discussed and sufficient conditions are derived to achieve diagonal dominance in case of static diagonal controllers. Moreover, a new algorithm is proposed to determine the controller gain regions that guarantees column and row diagonal dominance. Weighting factors are applied for both row and column diagonal conditions to obtain better results. Lastly, controller gain regions are plotted for a given TITO system to verify the effectiveness of the derived theoretical results.
This paper presents comparative study between fractional-order PI (FOPI) and PI controller for steam temperature control. Both controllers were tuned using Ziegler-Nichols tuning rules based on identified steam temper...
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ISBN:
(纸本)9781479956869
This paper presents comparative study between fractional-order PI (FOPI) and PI controller for steam temperature control. Both controllers were tuned using Ziegler-Nichols tuning rules based on identified steam temperature model in FOPDT structure. Simulation studies show the feasibility of using the original Ziegler-Nichols rules in producing significant improvement of FOPI over the PI with the same control parameter. However, overall performances of FOPI are dependent on the fractional-order and minor modification on its low-frequency response is required. This study also proposed a practical solution for the problem by introducing an auxiliary function called as an error filter. Overall performances of both controllers were validated with experimental results that show good agreement with simulations.
The current status of disability in world shows that there are lots of people with some kind of disability, according to a census conducted in 2010 by the National Institute of Statistics and Geography (INEGI) an inte...
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