Electric power systems will need to accommodate large amounts of renewables and a growing number of DC loads with reduced costs and losses. Medium-voltage DC distribution lines can play a key role. Moreover, a higher ...
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Hovering autonomous underwater vehicle (HAUV) play an important role in short distance underwater inspection mission. There are a lot of disturbances and uncertainties underwater, a robust control is needed to minimiz...
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ISBN:
(纸本)9781479982523
Hovering autonomous underwater vehicle (HAUV) play an important role in short distance underwater inspection mission. There are a lot of disturbances and uncertainties underwater, a robust control is needed to minimize the effects of external influences on HAUV's system behaviour, subjects to the constraint of not having a complete representation of the HAUV system. This paper describes the development of robust sliding mode depth control of a thruster propelled HAUV. Simulation results are presented to illustrate the performance of designed sliding mode depth control.
The high parallelism feature of scientific applications makes SIMD very suitable for streaming dataflow architectures. However, the splitting of SIMD memory requests increases the messages in on-chip networks and decr...
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Active disturbance rejection controller has distinguished performance on restricting uncertain disturbances. However, setting ADRC parameters is a time consuming task and depends strongly on operator's experience....
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ISBN:
(纸本)9781479982523
Active disturbance rejection controller has distinguished performance on restricting uncertain disturbances. However, setting ADRC parameters is a time consuming task and depends strongly on operator's experience. In this paper, we propose an approach for computing the ADRC parameters based on clonal selection algorithm (CSA). To validate this method, we build a MATLAB simulation for an UAV longitudinal channel control. Moreover, good results are obtained when we compare our approach to the one based on GA optimization. This work can be used to set parameters automatically, making the design of UAV controller more efficient.
Construction engineering products have the characteristic of one-time, so high quality is the eternal pursuit of various countries and various areas all over the world. In recent years, frequent accidents are triggere...
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ISBN:
(纸本)9781509011025
Construction engineering products have the characteristic of one-time, so high quality is the eternal pursuit of various countries and various areas all over the world. In recent years, frequent accidents are triggered by inferior engineering quality, and the consequences of loss cannot be estimated. So, the construction engineering quality caused the extensive concern of the government, strengthening the supervision and management becomes the main current work. On June 21, 2013, with the signing of Cross-Strait Service Trade Agreement, it has a regulation: Taiwanese stakes in companies can bidding project in the mainland, Taiwan open construction and renovation industry. The rule provides an opportunity for the exchange of cross-strait construction development. Because both sides of the social system is different, the management system of construction project is different, too. In order to solve the system obstacles for communication development. This paper uses the literature research, comparison research methods, analyses both sides of the construction project quality supervision system, to form the main innovative results of the article. After comparison and analysis, putting forward improvement opinions.
In this paper, the design of nonlinear observer-based dynamic controller for Nonlinear Networked controlsystems (NNCS) will be presented on the assumption that there exist packet loss between the sensor and the contr...
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ISBN:
(纸本)9781479982523
In this paper, the design of nonlinear observer-based dynamic controller for Nonlinear Networked controlsystems (NNCS) will be presented on the assumption that there exist packet loss between the sensor and the controller and between the controller and the actuator. Two different linear function of a stochastic variable satisfying a Bernoulli random binary distribution will represent the existence of the packet loss. The formulation of NNCS problem will be reduced to solving Linear Matrix Inequality (LMI). Finally, a demonistrative example will be presented to show the effectiveness of the proposed LMI approach.
This paper presents an approach to data fusion from multiple depth sensors with different principles of range measurements. This concept is motivated by the observation that depth sensors exploiting different range me...
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ISBN:
(纸本)9781467397087
This paper presents an approach to data fusion from multiple depth sensors with different principles of range measurements. This concept is motivated by the observation that depth sensors exploiting different range measurement techniques have also distinct characteristics of the uncertainty and artifacts in the obtained depth images. Thus, fusing the information from two or more measurement channels allows us to mutually compensate for some of the unwanted effects. The target application for our combined sensor is Simultaneous Localization and Mapping (SLAM). We demonstrated that fusing depth data from two sources in the convex optimization framework yields better results in feature-based 3-D SLAM, than the use of individual sensors for this task. The experimental part is based on data registered with a calibrated rig comprising ASUS Xtion Pro Live and MESA SwissRanger SR-4000 sensors, and ground truth trajectories obtained from a motion capture system. The results of sensor trajectory estimation are demonstrated in terms of the ATE and RPE metrics, widely adopted by the SLAM community.
In recent years, many studies on optimization of energy consumption have focused on heterogeneous processor architectures. Heterogeneous computing model composed of CPU and GPU has developed from co-processing between...
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This paper deals with the level control of a prototyped Split Range Plant Process. The conventional PID controller is initially applied to the process and the results are obtained. As the system takes a large settling...
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ISBN:
(纸本)9781479982523
This paper deals with the level control of a prototyped Split Range Plant Process. The conventional PID controller is initially applied to the process and the results are obtained. As the system takes a large settling time the following two controllers are also implemented. Apart from lowering the settling time, to increase the robustness of the system Sliding Mode control (SMC) and Dynamic Sliding Mode control (DSMC) are applied to the same system and the results are compared. To make the system more user friendly the whole programming is done in LabVIEW (Laboratory Virtual Instrument Workbench) software. This software is based on graphical programming technique. The objective of this paper is to present the response of all the three controllers on the prototype split range plant.
In this work, we aim to apply an adaptive Higher order sliding mode controller for trajectory tracking mode of Multi-rotor Unmanned Aerial Vehicles (UAVs) such as a Quadrotor system. The controller consists of the add...
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ISBN:
(纸本)9781479982523
In this work, we aim to apply an adaptive Higher order sliding mode controller for trajectory tracking mode of Multi-rotor Unmanned Aerial Vehicles (UAVs) such as a Quadrotor system. The controller consists of the addition of two terms such as nominal term based os classical sliding mode control (SMC) and an adaptive super twisting term. We start the paper by the presentation of the Quadrotor model. Classical SMC is designed in the second step. Next, super twisting and its adaptive variant case were used to replace the discontinuous control part of the SMC for objective to chattering attenuation and performances improvement. Simulation results were presented in the trajectory tracking mode and their performances are compared with those of the STW controller.
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