检索结果-内蒙古大学图书馆

7th Spring Researchers Colloquium on Databases and Information systems, SYRCoDIS 2011

作者： Gapanyuk, Yuri Lakomkin, Egor Ionkin, Sergey Davtyan, Martin Bauman Moscow State Technical University Informatics and Control Systems Department Russia

This industrial paper discusses the creation of web framework based on XML technologies. In addition to using eXist application server and XRX architecture, lightweight XML-based data model is designed and XQuery gene... 详细信息

关键词： XML

来源：评论

学校读者我要写书评

暂无评论

Situational Forecasting and control in Multi-Agent systems

Situational Forecasting and Control in Multi-Agent Systems

引用

2024 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2024

作者： Dubovik, Sergei A. Kabanov, Aleksey A. Sevastopol State University Department Of Informatics And Control In Technical Systems Sevastopol Russia

ISBN: (纸本)9798350395013

The paper examines the problem of multi-agent evolution of individual and systemic risk, in which local agents interact with each other through some central agent, through which local stabilization is formed. Meanwhile, the main object of our attention in this paper is global forecasting and control tools built on the basis of the principle of large deviations. Here, for the purposes of situational forecasting, an optimal path is used, which we call the A-profile of the critical state. The use of the A-profile allows the control process to identify possible system evolutions towards crisis in a well-timed manner. At that, it means that after identification there is still time to correct the control. In this paper, the A-profile is synthesized as a result of solving the nonlinear optimal control problem, where the state-dependent Riccati equation method is used. It is shown that the proposed method allows regulating the risk by coordinating the stabilization parameters of the averaged risk of local agents and the risk of the central agent. © 2024 IEEE.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

The Models of Non-Stationary End Position control systems With Digital Corrective Circuits

The Models of Non-Stationary End Position Control Systems Wi...

引用

2023 International Conference on Ocean Studies, ICOS 2023

作者： Kramar, Vadim Alchakov, Vasiliy Karapetian, Valerii Sevastopol State University Department of Informatics and Control in Technical Systems Sevastopol Russia

ISBN: (纸本)9798350382457

The article discusses approaches to modeling the end position control systems of the AUV with a containing, in addition to a non-stationary connection, discrete corrective links. We will use the name of such systems -τ- systems. The use of a digital computer in the final position control system leads to the need to use differential-difference equations. A simple replacement of discrete systems by continuous ones can lead to an error in the estimation of the system behavior, and in some cases, to system instability. The control system is considered as a non-stationary continuous-discrete system. A general scheme, a simplified scheme and a continuous analogue of the control system are considered. The choice of describing mathematical models using operational calculus is justified by the fact that the solution of differential and finite-difference equations are transcendental functions that are not expressed in terms of elementary functions. As a result, we are talking about revealing the properties of these functions. The exact solution of the end position equations presented in the form of inversion integrals can be obtained as a result of applying the transformations of the operational calculus. The mathematical model of the system is represented in the form of transfer functions. © 2023 IEEE.

关键词： Timing circuits

来源：评论

学校读者我要写书评

暂无评论

An Object Recognition Procedure Based on the Image with the Specified Color Features in the Aquatic Environment

An Object Recognition Procedure Based on the Image with the ...

引用

2023 International Russian Automation Conference, RusAutoCon 2023

作者： Kramar, Oleg A. Kramar, Vadim A. Ermakov, Igor A. Sevastopol State University Department of Informatics and Control in Technical Systems Sevastopol Russia

ISBN: (纸本)9798350345551

The article considers an approach to recognize an underwater object from its image obtained with the help of a technical vision system. The color of the object is used as a feature to distinguish the object in the image. The detection problem is solved for an AUV, which follows a trajectory within a monitoring mission to detect and classify an object with known characteristics. Based on the proposed method, a program has been developed to provide the AUV with an image of the detected object and its characteristics. The method is based on the analysis after transcoding from RGB to HSV. According to the experimental data, the brightness interval of the image, which is considered to be not corrupted and in which it is possible to detect objects, is determined. © 2023 IEEE.

关键词： Object recognition

来源：评论

学校读者我要写书评

暂无评论

Quasipotentials in synthesis of control system based on knowledge

Quasipotentials in synthesis of control system based on know...

引用

2017 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2017

作者： Dubovik, S.A. Kabanov, A.A. Department of Informatics and Control in Technical Systems Sevastopol State University Sevastopol Russia

ISBN: (纸本)9781509056484

The application of the Wentzel-Freidlin asymptotic method in the control problem of estimating the probability of large deviattions is considered. This problem is reduced to the Lagrange optimal control problem for the action functional. In the case when state space matrix of object is Hurwitz matrix, the existence of a unique solution of the Lagrange problem in the form of quasipotential extremals (QE) is established. Based on QE it is possible to build an effective prediction of critical states of control process. The advantage of this method allows arranging the information on the high level, and thereby, building a control system that is based on knowledge. An example of a seaworthiness control algorithm design for a vessel on-board system is shown. In this case, the proposed method of prediction of the critical state based on the action functional leads to frequency-doubling principle known for the Mathieu equation. © 2017 IEEE.

关键词： Optimal control systems

来源：评论

学校读者我要写书评

暂无评论

Finite impulse response filters for state estimation with not completely known statistical information

Finite impulse response filters for state estimation with no...

引用

2018 International Russian Automation Conference, RusAutoCon 2018

作者： Skorohod, B. Department of Informatics and Control in Technical Systems Sevastopol State University Sevastopol Russia

ISBN: (纸本)9781538649381

In this work, we suggest and study new algorithms for unbiased filters with finite impulse response of time-varying discrete state-space models. They have Kalman-like form and use only the known state expectation at starting points of sliding windows. This allows taking into account the priory statistical information about random biases, trends and specified movements of the system. Besides, their initialization does not include a training cycle in a batch form. © 2018 IEEE.

关键词： Kalman filters

来源：评论

学校读者我要写书评

暂无评论

Preprocessing and Future Extraction for Visual Underwater Odometry

Preprocessing and Future Extraction for Visual Underwater Od...

引用

2022 International Russian Automation Conference, RusAutoCon 2022

作者： Skorohod, B. Fateev, S. Zhilyakov, P. Sevastopol State University Department of Informatics and Control in Technical Systems Sevastopol Russia

ISBN: (数字)9781665466554

ISBN: (纸本)9781665466554

Distortion of underwater images can impair the accuracy and robustness of visual odometry algorithms, leading, in particular, to a decrease in the number of detected conjugate key points on pairs of images. In this regard, image preprocessing, the selection of key points and the odometry algorithms themselves are important questions in solving underwater robotics problems. The paper considers on real data the influence of various algorithms for preprocessing and constructing key points on the properties of video odometry algorithms in conditions of underwater and uncontrolled camera movement. It is shown that the number of key points determined on the sequence of images, and, consequently, the accuracy of obtaining the trajectory of the camera movement can depend radically on both preprocessing and the detector used. © 2022 IEEE.

关键词： Cameras

来源：评论

学校读者我要写书评

暂无评论

Modeling and Identification of Spool Dynamics in an Industrial Electro-Hydraulic Valve

Modeling and Identification of Spool Dynamics in an Industri...

引用

21st Mediterranean Conference on control and Automation (MED)

作者： Aranovskiy, Stanislav Department of Control Systems and Informatics National Research University of Information Technologies Mechanics and Optics Russia|c|

ISBN: (纸本)9781479909957;9781479909971

Approximate models of spool dynamics are proposed to deal with dynamic delays observed for an industrial electro-hydraulic valve. The suggested model consists of a linear block and two static nonlinearities. A method for identification of parameters is suggested that allows to deal with a case when only pressure in a hydraulic cylinder is measured but not the displacement of the spool. The approach is verified experimentally.

关键词： approximation theory hydraulic systems valves

来源：评论

学校读者我要写书评

暂无评论

Simple Robust and Adaptive Tracking control for Mobile Robots

引用

IFAC-PapersOnLine 2015年第11 11期48卷 143-149页

作者： Pyrkin, Anton A. Bobtsov, Alexey A. Kolyubin, Sergey A. Faronov, Maxim V. Borisov, Oleg I. Gromov, Vladislav S. Vlasov, Sergey M. Nikolaev, Nikolay A. Department of Control Systems and Informatics ITMO University St. Petersburg Russia Department of Engineering Cybernetics Norwegian University of Science and Technology TrondheimNO-7491 Norway Laboratory “Control of Complex Systems” Institute for Problems of Mechanical Engineering St. Petersburg Russia

The problem of simple adaptive and robust control is studied for the case of parametric and dynamic dimension uncertainties: only the maximum possible relative degree of the plant model is known. The control approach “consecutive compensator” is investigated. To illustrate the eficiency of proposed approach an example with the mobile robot motion control using computer vision system is considered. Some remarks about mapping algorithms using stereo cameras and laser scanner for implementation in new home robots are considered. © 2015

关键词： Visual servoing Computer control systems Conformal mapping Mobile robots Robust control Stereo image processing Adaptive tracking control Computer vision system control approach Mapping algorithms Mobile robot motion Relative degrees Robust and adaptive control Simple adaptive

来源：评论

学校读者我要写书评

暂无评论

Necessary Optimality Conditions for Dynamic systems Described by Ordinary Stochastic Difference Equations 5

Necessary Optimality Conditions for Dynamic Systems Describe...

引用

5th International Conference on Problems of Cybernetics and informatics, PCI 2023

作者： Mansimov, Kamil Mastaliyev, Rashad Laboratory of methods of control of complex dynamic systems Institute of Control Systems Baku Azerbaijan Department of mathematics and informatics Azerbaijan University Laboratory of methods of control of complex dynamic systems Institute of Control Systems Baku Azerbaijan

ISBN: (纸本)9798350319064

The stochastic optimal control problem of an ordinary non-linear discrete stochastic system is considered. The quality of control is estimated by the mathematical expectation of the Boltz type functional to be minimized. Considering that the control domain is open, first and second orders stochastic type necessary optimality criterions are formulated and proved, including stochastic Euler equation. © 2023 IEEE.

关键词： Stochastic systems

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：