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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： Xiukun Wei L. Del Re Jindong Tan Faculty of the institute of Design and Control of Machatronical Systems Johannes Kepler University Linz Austria Johannes Kepler Universitat Linz Linz AT Faculty of Department of Electrical and Computer Engineering Michigan Technological University USA

In this paper a robust adaptive pole placement method for a class of linear parameter varying (LPV) system based on input-output description is constructed after the LPV system model, including its un-modeled error model term, is presented. The recursive least square estimation algorithm with dead zone is applied for the parameter estimation. The robust stability of closed-loop system is analyzed and the robust bound is derived. One simulation example illustrates the effectiveness of the control algorithm and demonstrates that the adaptive control based on LPV model can achieve better performance than the controller based on linear time varying (LTV) model

关键词： Robust control Adaptive control Least squares approximation Robustness Parameter estimation Nonlinear systems control systems Programmable control State feedback Robust stability

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A25: Measurement of pressures in silos using strain gages

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IFAC Proceedings Volumes 2004年第20期37卷 141-146页

作者： Lukáš Martinák Aleš Oujezdský Aleš Slíva Department of Measurement and Control Faculty of Electrical Engineering and Computer Science 17. listopadu 15 708 33 Ostrava-Poruba Czech Republic Institute of Transportation Faculty of Mechanical Engineering VŠB–Technical University of Ostrava 17. listopadu 15 708 33 Ostrava-Poruba Czech Republic

The paper deals with a bulk solid pressure observation inside a silo using new developed 3Dimensional (Triaxial) Indicator. New design and conception of the 3D indicator have been developed exclusively for detecting of real stresses/pressures inside vessels, bunkers and silos. The unique design of the 3D indicator in cooperation with appropriate used software, and with a silo model is able to assure a clear image to pressure/stress identifications in particulate solid. Moreover, the third dimension is unique and enriches the area of the pressure knowledge. The measurement process incl. the procedure of processing values using the created interactive software environment has been explained in the poster intimately and investigated in a real silo loaded by a poured bulk solid. Real results and outputs of the investigation have been presented and discovered in the paper.

关键词： stress pressure silo 3D indicator strain gage

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Smooth and Time-Optimal Trajectory Planning for Robot Manipulators

Smooth and Time-Optimal Trajectory Planning for Robot Manipu...

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American control Conference

作者： Peter A. Muller Ryad Boucherit Steven Liu Institute of Control Systems Department of Electrical and Computer Engineering University of Kaiserslautern Erwin-Schrodinger-Str. 12 67663 Kaiserslautern Germany Wilhelm Buchner Hochschule Ostendstrasse 3 64319 Darmstadt Germany

ISBN: (纸本)9781457710957

In this article a new method for planning smooth and time-optimal trajectories for robot manipulators is proposed. Trajectory planning is considered as dynamic optimization problem in which the end-effector path as well as the limitations of the joint velocities, the actuator torques and the actuator torque rates are the constraints. These constraints transferred to the space of the path variable using the parametrized system dynamics border an admissible solution space in which time optimality and smoothness are defined. DAE models are derived to construct time-optimal trajectories inside the admissible solution space taking the maximum velocity curve and its properties into account.

关键词： trajectory planning Robot Manipulator Solution space System dynamics Smoothness Torque smoothing actuators trajectory

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Improved mathematical morphology transformation and application to single ground fault feature extraction in small current system

Improved mathematical morphology transformation and applicat...

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International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

作者： Guping Zheng Qiang Li Haihan Li School of Control and Computer Engineering North China Electric Power University Baoding China Information Center Inner Mongolia Electric Power Survey & Design Institute Co. Ltd Hohhot China

ISBN: (纸本)9781467371070

Single phase grounding fault occurs in small current grounding power system frequently, fault signal caused by which contains a large number of feature information, which is an important basis for the fault location. However, due to the weakness of the fault signal, collecting the fault feature information becomes a difficult point to detect the fault line and solve the fault location. In this paper, combining with the idea of multi-resolution structural elements, an improved mathematical morphology method to accomplish the extraction of the characteristics of the fault signal has been proposed. Firstly, the consistency distribution level has been introduced to ameliorate the traditional morphological filter, which reassigned the individual treatment effect of the signal of Open-Closing and Close-Opening operation and optimized the proportional coefficients of these two kinds of operations in this filter. As a result, it makes these two operations have a more thorough and effective influence on the feature signal extraction results. Then, it has taken the use of the principle of multi-resolution structural elements to complete feature extraction by choosing different kinds of linear structure element. By the simulation experiment, compared with the fault feature component extracted by wavelet transform, it shows that this measures has a good effect on the fault feature extraction of single phase grounding fault in neutral ineffective grounding system.

关键词： Feature extraction Grounding Decision support systems Fault location Morphology Power industry

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Multidimensional integral imaging for sensing, visualization, and recognition in degraded environments

Multidimensional integral imaging for sensing, visualization...

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Imaging Systems and Applications, ISA 2019

作者： Javidi, Bahram Shen, Xin Markman, Adam Cho, Myungjin Corral, Manuel Martinez Carnicer, Artur Stern, Adrian Sotoca, José Martinez Latorre-Carmona, Pedro Pla, Filiberto Electrical and Computer Engineering Department University of Connecticut StorrsCT06269-4157 United States Department of Electrical Electronic and Control Engineering Hankyong National University Korea Republic of Department of Optics University of Valencia Burjassot46100 Spain Facultat de Física Departament de Física Aplicada Barcelona08028 Spain Electro-Optical Engineering Unit Ben-Gurion University of the Negev Beer Sheva81405 Israel Institute of New Imaging Technologies Universidad Jaume i Castellon de la Plana12071 Spain

ISBN: (纸本)9781943580637

An overview of multidimensional integral imaging for sensing, visualization, and recognition in degraded environments is presented. Applications include 3D visualization, photon starved imaging, material inspection, IR imaging, passive depth estimation, automated human gesture recognition, and long-range imaging. © 2019 The Author(s).

关键词： Visualization

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A distributed control approach to robust output regulation of networked linear systems

A distributed control approach to robust output regulation o...

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International Conference on control and Automation (ICCA)

作者： Xiaoli Wang Yiguang Hong Jie Huang Zhong-Ping Jiang Key Laboratory of Systems and Control Chinese Academy and Sciences Beijing China Mechanical and Automation Engineering Chinese University of Hong Kong Hong Kong China Electrical and Computer Engineering Polytechnic Institute of New York University Brooklyn NY USA

In this paper, the robust output regulation problem of a networked linear system with uncertainties is considered. Based on internal model, distributed control scheme is adopted to achieve the objectives of asymptotic tracking and disturbance rejection in a networked uncertain system where both the reference inputs and disturbances are generated by an exosystem. Both state and output feedback designs are given.

关键词： Distributed control Robust control Linear systems control systems Robustness Bismuth Uncertain systems Output feedback Feedback control Automatic control

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Fuzzy watershed algorithm: An enhanced algorithm for 2D gel electrophoresis image segmentation

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International Journal of computer Science Issues 2012年第2 2-3期9卷 561-577页

作者： Rashwan, Shaheera Sarhan, Amany Faheem, Muhamed Talaat Youssef, Bayumy.A. Informatics Research Institute City for Science and Technology Borg ElArab Alexandria Egypt Computer science and Automatic Control Engineering Department Faculty of Engineeing University of Tanta Tanta Egypt EE dept-Faculty of Engineering Taif University Saudi Arabia

An important issue in the analysis of two-dimensional electrophoresis images is the detection and quantification of protein spots. The main challenges in the segmentation of 2DGE images are to separate overlapping protein spots correctly and to find the abundance of weak protein spots. To enable comparison of protein patterns between different samples, it is necessary to match the patterns so that homologous spots are identified. In this paper, we describe a new robust technique to segment and model the different spots present in the gels. The Watershed segmentation algorithm is modified to handle the problem of over segmentation by initially partitioning the image to mosaic regions using the composition of fuzzy relations. The experimental results showed the effectiveness of the proposed algorithm to overcome the over segmentation problem associated with the available algorithm. We also use a wavelet denoising function to enhance the quality of the segmented image. The parameters of the wavelet function are obtained using the Genetic Algorithm search technique. The results of using the denoising function before the proposed Fuzzy Watershed segmentation algorithm is very promising as they are better than those without denoising. © 2012 International Journal of computer Science Issues.

关键词： Image segmentation

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HTPSeg: A Semantic Segmentation Database for House-Tree-Person Psychological Test

HTPSeg: A Semantic Segmentation Database for House-Tree-Pers...

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International Conference on Tools for Artificial Intelligence (ICTAI)

作者： Hao Wang Jin Wang Ting Pan Bingfeng Zhang Weifeng Liu Qingdao Institute of Software College of Computer Science and Technology China University of Petroleum (East China) Qingdao China College of Control Science and Engineering China University of Petroleum (East China) Qingdao China

ISBN: (数字)9798331527235

ISBN: (纸本)9798331527242

The House Tree Person (HTP) test is widely recommended for clinical application of mental illness. Traditionally, therapists assess a patient's mental state by analyzing the content of their HTP drawings manually, which is time-consuming and susceptible to the therapist's subjective influences. Recently, using intelligent diagnostic models to tackle HTP test has attracted much attention. However, most existing models attempt to make a binary classification for HTP drawings, i.e., positive or negative psychological states, making details that can reflect the psychological state of the patient lost. To address the above challenge, in this paper, we introduce the semantic segmentation task into the HTP test for the first time to generate pixel-level semantic information. We first construct a semantic segmentation dataset about HTP psychological diagnosis named HTPSeg. Subsequently, to overcome the domain gap between HTP drawings and natural images, we propose to use the Low-Rank Adaptation (LoRA) fine-tuning strategy to adapt the Segment Anything Model (SAM) to the task of HTP drawing analysis. Specifically, we integrate the rank decomposition matrices into the projection layer of the transformer block in SAM's image encoder for fine-tuning. Additionally, we freeze the Mask Decoder and fine-tune the Prompt Encoder using default embeddings. Extensive experiments indicate the effectiveness and efficiency of the proposed method. The dataset and code will be available at https://***/clown06/HTPSeg.

关键词： Analytical models Adaptation models Heavily-tailed distribution Semantic segmentation Computational modeling Semantics Psychology Feature extraction Transformers Matrix decomposition

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An Access control Scheme Based on Decentralized Identifiers and Verifiable Credentials in IoT

An Access Control Scheme Based on Decentralized Identifiers ...

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computer Science and Management Technology (ICCSMT), International Conference on

作者： Yunliang Li Yanfang Fu Zhiqiang Du Zhipeng Cai School of Armament Science and Technology Xi’an Technological University Xi’an China School of Computer Science and Engineering Xi’an Technological University Xi’an China North Automatic Control Technology Institute Taiyuan China

With the rapid development of information technology, the Internet of Things (IoT) has become more complex, and more and more devices and users are connected to the IoT system. While improving data interactivity and expanding the scope of data sharing, secure access to IoT resources is also facing great risks. Therefore, it is necessary to design an appropriate access control scheme. Firstly, this paper introduces Decentralized Identifiers (DID) and Verifiable Credentials. It is used for authentication and rights management of users and devices, respectively, which makes identity and authority unforgeable. Secondly, this paper uses blockchain technology to support DID and Verifiable Credentials, which can ensure the decentralization, invariance and traceability of data. Finally, using smart contracts enables automatic processing of requester authorization and access requests. The test results show that the scheme has good performance.

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Research on Data Communication Monitoring System of Master and Slave Equipment in Avionics System Based on 1553B Bus

Research on Data Communication Monitoring System of Master a...

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Networking Systems of AI (INSAI), International Conference on

作者： Zhitian Zhu Yanfang Fu Chengtao Lu Yongxing Qiao Zhipeng Cai School of Weapon Science and Technological Xi'an Technological University Xi'an China School of Computer Science and Engineering Xi'an Technological University Xi'an China North-Automatic Control Technology Institute Taiyuan China

When the terminal sub-device sends data to the main device of the peer avionics system, it faces the related problems of data loss, blurred transmission, and format parsing errors. In response to these problems, this paper combs the basic concept and basic topology structure of the airborne bus 1553B applied to the master-slave equipment of the avionics system, analyzes the application method of the 1553B bus in the avionics system for high-efficiency and high-precision data transmission, and proposes an industrial control system. The scheme of optimizing data transmission between master and slave devices through 1553B bus access to the avionics system provides a new research idea for the development of data communication between master and slave devices in the real avionics system. The data communication monitoring system of the master-slave equipment of the electrical system will avoid risks for future real scenarios in terms of data analysis, data flow, and whether the transmission and reception are successful on the ground.

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