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A Compact Ultra-Wideband Microstrip Antenna for Spectrum Monitoring

Progress in Electromagnetics Research C 2025年 153卷 225-232页

作者： Liu, Yu Yu, Shuo Liu, Xiaoming The School of Physics and Electronic Information Anhui Normal University Wuhu241002 China Anhui Provincial Engineering Center on Information Fusion and Control of Intelligent Robot Wuhu241002 China

A compact ultra-wideband antenna fed by coplanar waveguide is reported in this paper. The designed antenna consists of a trumpet-shaped planar radiation patch and a symmetrical ground patch. Two Mickey-Mouse shaped perturbative slots and two quarterelliptical grooves are etched on the ground to obtain better impedance matching. By prolonging the radiation patch, a very wide −10 dB bandwidth of covering 300 MHz–18 GHz with bandwidth ratio up to 60: 1 and omnidirectional coverage are achieved. Furthermore, the proposed antenna is able to cover P(0.3-1G), L(1-2G), S(2-4G), C(4-8G), X(8-12G), and Ku (12-18G) bands, which is much preferred for wideband spectrum monitoring. © 2025, Electromagnetics Academy. All rights reserved.

关键词： Ultra-wideband (UWB)

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Distributed Coordinated control Battery Energy Storage System Based on Consensus Algorithm

Distributed Coordinated Control Battery Energy Storage Syste...

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2023 IEEE International Conference on Unmanned Systems, ICUS 2023

作者： Tang, Guangli An, Chen Zhang, Botao Sun, Fangyun Lu, Zibao Feng, Youhong Anhui Province Engineering Laboratory of Intelligent Robot's Information Fusion and Control Wuhu China

ISBN: (纸本)9798350316308

A new distributed fixed time secondary control strategy is proposed for the battery energy storage system of DC microgrids. It has the advantages of fast convergence speed and strong reliability. This control strategy estimates the average voltage of the system based on a voltage observer, and takes the estimated average voltage, proportional current, and energy level of the battery energy storage unit as consistent variables. A distributed secondary controller is designed based on a fixed time algorithm. Finally, the uniform convergence of the control strategy is analyzed using the Lyapunov stability criterion;And the effectiveness of the proposed control strategy was verified through simulation. © 2023 IEEE.

关键词： Battery storage

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Safety Study Based on the Aging Mechanism of Retired Lithium Batteries 10

Safety Study Based on the Aging Mechanism of Retired Lithium...

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10th Annual International Conference on Material Science and Environmental engineering, MSEE 2022

作者： Zhang, Taiyang Shi, Qian Huang, Xian'An Zhang, Chijian Anhui Province Intelligent Robot Information Fusion and Control Engineering Laboratory School of Physics and Electronic Information Anhui Normal University Anhui Wuhu China

Aiming at the problem of battery aging and capacity change during the charging and discharging cycle of decommissioned ternary lithium batteries, it is proposed to study lithium batteries from two different perspectives: macro and micro. Select the appropriate external characteristic parameters to carry out a large number of charge and discharge cycle experiments with different magnifications for the decommissioned ternary lithium battery, and observe the capacity and internal resistance of the lithium battery from a macroscopic perspective. For the battery disassembly experiment, the angle analyzes the changes in the internal material of the battery. The results show that the experimental verification of decommissioned lithium batteries can accurately analyze the reasons affecting battery aging and capacity change, so as to reduce the safety hazards of cascade use of batteries and extend the service life of batteries to provide data guidance and suggestions. © Published under licence by IOP Publishing Ltd.

关键词： Lithium batteries

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DESIGN AND IMPLEMENTATION OF A DEEP LEARNING-BASED QUALITY DETECTION SYSTEM FOR CORK DISCS 10

DESIGN AND IMPLEMENTATION OF A DEEP LEARNING-BASED QUALITY D...

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10th International Symposium on Test Automation and Instrumentation, ISTAI 2024

作者： Qu, Liguo Chen, Guohao Liu, Ke Liu, Yuling Wu, Jie Zhou, Hong School of Physics and Electronic Information Anhui Normal University Wuhu China Anhui Intelligent Robot Information Fusion and Control Engineering Research Center Wuhu China

ISBN: (纸本)9781837242672

High-quality badminton shuttlecock heads are made from cork discs derived from natural oak bark, which exhibit complex cracks and wrinkles, causing inefficiency and inconsistency in quality screening. To address this, we propose a deep learning-based detection algorithm using YOLOv5. The YOLOv5 model was optimized for cork disc characteristics by introducing an attention mechanism to enhance feature representation and designing a post-processing algorithm to improve detection accuracy. The optimized model, trained on a custom cork disc dataset using an NVIDIA RTX3080 GPU, achieved 86.7% mFl and 81.5% mAP, outperforming other mainstream algorithms. Finally, the system utilizes Nvidia's edge computing device Jetson Nano as the computational core, deploying the YOLOv5 model and designing the graphical interface on Ubuntu 18.04. Real-time cork disc image acquisition is achieved using binocular industrial cameras and fiber optic sensors, while a uniformly rotating turntable and diversion device are designed to facilitate the transfer of cork disc. Experimental results show that the system achieves a 92.75% classification accuracy for four quality grades with an inference time of 87.6ms, meeting the requirements for real-time cork disc quality inspection. © The Institution of engineering & Technology 2024.

关键词： Image acquisition

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Blockchain-based multi-hop permission delegation scheme with controllable delegation depth for electronic health record sharing

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High-Confidence Computing 2022年第4期2卷 14-22页

作者： Ya Gao Aiqing Zhang Shu Wu Jindou Chen School of Physics and Electronic Information Anhui Normal UnivresityWuhu 241002China Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Rabot Wuhu 241002China

Permission delegation has become a new way for data sharing by delegating the authorized permission to other users.A flexible authorization model with strict access control policies is promising for electronic health record(EHR)sharing with *** this paper,a blockchain-based multi-hop permission delegation scheme with controllable delegation depth for EHR sharing has been *** use the interplanetary file system(IPFS)for storing the original *** contracts and proxy re-encryption technology are implemented for permission *** order to ensure data security,we use attribute-based encryption to provide fine-grained access ***,blockchain is used to achieve traceability and *** deploy smart contracts so that the delegation depth can be set by *** analysis of the proposed protocol shows that our solution meets the designed ***,we evaluate the proposed algorithm and implement the scheme on the Ethereum test *** scheme outperforms the competition in terms of performance,according to the results of our experiments.

关键词： Blockchain Data security Permission delegation Access control Smart contract

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Efficient Fine-Grained Pedestrian Detection on Edge Devices

Efficient Fine-Grained Pedestrian Detection on Edge Devices

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2023 IEEE International Conference on Unmanned Systems, ICUS 2023

作者： Qian, Haozheng Fang, Mingxing Huang, Song Liu, Xinke Rui, Xinyu Du, Youwu School of Physics and Electronic Information Anhui Normal University Wuhu China Anhui Normal University Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Robot Wuhu China School of Electrical and Information Engineering Jiangsu University of Technology Changzhou China

ISBN: (纸本)9798350316308

Currently, the prevailing approach in pedestrian detection involves leveraging deep learning techniques. However, effectively detecting pedestrian objects at small scales continues to pose a significant challenge in this field of research. Moreover, many algorithms prioritize accuracy improvement, making it difficult to deploy them in real-world scenarios. This paper proposes an edge device-friendly object detection method. We introduce a target extraction module with a minimal number of non-linear units to preserve fine-grained information in the network. Additionally, we design a trapezoidal FPN structure based on the structural re-parameterization technique, and optimize it specifically for edge devices. Furthermore, we construct a hardware platform to validate the feasibility of our algorithm in real-world applications. In the experimental section, we demonstrate that our proposed method outperforms comparative algorithms on the Caltech pedestrian dataset, while maintaining high speed on edge devices. © 2023 IEEE.

关键词： Feature extraction

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control for singular time-delay systems based on PD feedback of partial states

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International Journal of Dynamics and control 2025年第2期13卷 1-7页

作者： Hu, Jian Lv, Qingwen Zhang, Runzhang Chen, Wenbin Gao, Fang School of Physics and Electronic Information Anhui Normal University Wuhu China Anhui Engineering Research Center on Information Fusion and Control of Intelligent Robot Wuhu China Anhui Provincial Joint Key Laboratory on Information Fusion of Intelligent Automotive Cabin Wuhu China

The $$H_{\infty }$$ control of singular time-delay systems (STDs) with proportional-differential (PD) feedback of partial states is the main topic of this work. A new PD feedback controller with partial states is constructed, and the admissibility and $$H_{\infty }$$ control problems are studied by figuring out the differential-algebraic equations of a class of STDs with external disturbances. Additionally, robust admissibility and robust admissibilization conditions are derived, allowing for the reduction of conservatism and the improvement of control impact with reduced computation. The utilization of a more concise controller in this study facilitates further reduction of decision variables compared to previous studies, while effectively striking a balance between conservatism, the quantity of decision variables, and control efficacy. Lastly, a few numerical examples illustrate the aforementioned claims.

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control for linear time-delay systems based on proportional–integral observer utilizing static output-feedback

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International Journal of Dynamics and control 2025年第2期13卷 1-8页

作者： Yuan, Xuyang Shi, Zuguang Gao, Fang School of Physics and Electronic Information Anhui Normal University Wuhu China Anhui Engineering Research Center on Information Fusion and Control of Intelligent Robot Wuhu China Anhui Provincial Joint Key Laboratory on Information Fusion of Intelligent Automotive Cabin Wuhu China

In this study, the $$H_\infty $$ control problem of a linear time-delay system is considered. A proportional–integral observer and equivalent-input-disturbance method (the PIO-based-EID method) provides a more accurate estimation of the system state and allows for a more flexible system design for enhanced stability. Therefore, in this study, the method is used to improve the disturbance suppression performance of the system. Firstly, an EID estimate is obtained based on the PIO-based-EID method. Subsequently, a static output-feedback control law including EID estimation is developed to ensure excellent control effect. Thirdly, the stability of the closed-loop system is demonstrated by the results of linear-matrix-inequalities to match the $$H_\infty $$ control performance specification. The control law gain and observer gain are then determined using the singular value decomposition method. Ultimately, simulation results from MATLAB software are analyzed to confirm the method’s feasibility.

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Speed control of Permanent Magnet Synchronous Motor Using Sliding Mode control Combined with Equivalent Input Disturbance control 41

Speed Control of Permanent Magnet Synchronous Motor Using Sl...

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第41届中国控制会议

作者： Mingxing Fang Xiao Liang Ying Chen Jie Cheng Haozheng Qian Song Huang Youwu Du Jinhua She School of Physics and Electronic Information Anhui Normal University Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Robot School of Electrical and Information Engineering Jiangsu University of Technology School of Engineering Tokyo University of Technology

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

In this paper,a sliding mode control(SMC) for the direct torque control system to control the speed of permanent magnet synchronous motor(PMSM) is *** order to further suppress torque ripple,chattering and disturbance of the system,an equivalent input disturbance control(EIDC) method is ***,a composite control strategy combining SMC and EIDC,called SMC-EIDC strategy,is proposed for PMSM speed control *** results demonstrate that the SMC-EIDC strategy has achieved a better performance with fast torque and speed *** strategy makes the system has less chattering,shorter settling time,and less overshoot on speed responses.

关键词： Permanent magnet synchronous motor direct torque control sliding mode control equivalent input disturbance speed control

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Model-Based Iterative Learning control Algorithm and Its Simulation Research in robot Point Position control

Model-Based Iterative Learning Control Algorithm and Its Sim...

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作者： Guo, Kai Li, Ming Han, Jun Bai, Zhi The School of Mechanical and Electrical Engineering Suzhou University Anhui Suzhou234000 China Anhui Provincial Engineering Laboratory on Information Fusion and Control of Intelligent Robot Anhui Wuhu241002 China

Iterative learning control (IIC) uses iterative correction to achieve the predetermined goal improvement, especially suitable for the point position control system of the robot, to achieve high-precision tracking of the desired trajectory within a limited time interval. The iterative algorithm step relies on the precise mathematical model of the system, but uses the previous control information and error information to form the input signal. Therefore, the iterative algorithm provides an effective method for robots with highly nonlinear, strongly coupled, and time-varying systems. Therefore, the purpose of this article is to study the model-based IIC algorithm and its simulation application in robot point control. This article first summarizes the basic theory of IIC algorithm, and then studies the basic process of its algorithm. On this basis, the robot point position control algorithm is simulated and analyzed. This research uses comparative method, observation method and other research methods to study the subject of this article. Experimental research shows that compared with the traditional robot point control system;the operating efficiency of the robot point control simulation system based on the model-based iterative control algorithm exceeds 15%. It fully reflects the feasibility of the robot point control simulation system studied in this article and the traditional problems that need to be solved urgently. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： robots

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