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检索条件"任意字段=3rd International Symposium on Control Engineering and Robotics, ISCER 2024"

共 600 条记录，以下是151-160 订阅

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Effects of Dimensionality Reduction on Classifier Training Time and Quality 3

Effects of Dimensionality Reduction on Classifier Training T...

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3rd international symposium on Instrumentation, control, Artificial Intelligence, and robotics, ICA-SYMP 2023

作者： Yaicharoen, Auapong Hashikura, Kotaro Samad Kamal, Md Abdus Murakami, Iwanori Yamada, Kou Kmutt Electronic and Telecommunication Engineering Department Bangkok Thailand Gunma University Mechanical Science and Technology Gunma Japan

ISBN: (纸本)9781665473538

Two important aspects when training a classifier are being investigated, training time and classifier quality. Two well-known dimensionality reduction techniques are performed on three groups of data to create smaller data sets for classifier training. The first two techniques are the principal component analysis (PCA) and its modification called adaptive PCA (aPCA). The third one is the linear discriminant analysis (LDA). Three groups of data sets are trained to create classifiers with and without being pre-processed with these feature reduction techniques. Training time and accuracy scores obtained from each classifier are compared, and the experiment results show that sample size and number of features are two important factors to be considered before selecting dimensionality reduction techniques. If the compatible data reduction technique and data set is chosen, the training time can be reduced without compromising the quality of the classifier. © 2023 IEEE.

关键词： Principal component analysis

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Non-contact Acoustic Detection Technology for Bridge Structural Damage Based on High Frequency Vibration Signal Reconstruction Algorithm 3

Non-contact Acoustic Detection Technology for Bridge Structu...

引用

3rd international symposium on Sensor Technology and control, ISSTC 2024

作者： Zhang, Weijie Pingdingshan Longze Highway Engineering Co. Ltd. Henan Pingdingshan467000 China

ISBN: (纸本)9798331541637

To improve the accuracy of bridge damage location detection results, a non-contact acoustic detection technology for bridge structural damage based on high-frequency vibration signal reconstruction algorithm is proposed. Based on orthogonal complement pyramid decomposition and waveform feature parameters, the signal is subjected to series orthogonal subspace decomposition and reconstruction. After denoising, a linear mixed model is constructed using a high-frequency vibration signal reconstruction algorithm. By utilizing the reconstructed signal features and combining them with the propagation characteristics of sound waves, a coupling relationship between displacement and wave direction is established. And in the bending wave mode, the frequency is classified by integrating the displacement order derivative, and the damage is located by superimposing the wave state, achieving non-contact acoustic detection of bridge structural damage. The experimental results show that the non-contact acoustic detection of bridge structure damage using the method designed in this paper has good accuracy and practical application value. © 2024 IEEE.

关键词： Signal denoising

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Simulation and Experimental Study of a Floating Buffer Based on Bernoulli Equation 3

Simulation and Experimental Study of a Floating Buffer Based...

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3rd international symposium on Sensor Technology and control, ISSTC 2024

作者： Wang, Shuman Ning, Yanping Zhang, Fanfan Ma, Amin Nanjing University of Science and Technology Jiangsu Nanjing China Northwest Institute of Mechanical and Electrical Engineering Shaanxi Xianyang China

ISBN: (纸本)9798331541637

Floating buffer technology is one of the effective ways to improve the speed of mechanism movement, reduce recoil resistance, enhance the accuracy of mechanism movement, and achieve lightweight technology. The article establishes the motion differential equation of the mechanism under continuous instantaneous impact for a high-speed floating buffer. Based on the Bernoulli equation, a calculation method for hydraulic resistance during recoil and recoil processes considering changes in needle valve flow rate was established. Solving the differential equation of the recoil process of the buffer using high-precision ordinary differential equations. Combined with experimental testing, the established buffer model was validated. The results showed that the maximum displacement of the buffer after calculation had an error of 3.7% compared to the test results, which verified the accuracy of the simulation analysis model and provided important reference for conducting research on similar problems. © 2024 IEEE.

关键词： Bernoulli equation buffer experimental study floating technology simulation analysis

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Development and Implementation of An Autonomous Smart Seed Sowing Robot With A Precise Closed-Loop control System 3

Development and Implementation of An Autonomous Smart Seed S...

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3rd IEEE international Conference on robotics, Automation, Artificial-Intelligence and Internet-of-Things, RAAICON 2024

作者： Mohshin, Ammar Bin Rufsun, Shoaib Oyshi, Jannatul Mubasshara Liza, Fatema Bintay Noor Promi, Mithila Sunjana Tanisha, Shaira Tahsin Haque National Institute of Textile Engineering and Research Department of EEE Dhaka Bangladesh Military Institute of Science and Technology Department of EECE Dhaka Bangladesh

ISBN: (纸本)9798331534400

This paper investigates the development of a modern seed sowing robot whose main aim is to introduce efficiency in the practice of agriculture to improve accuracy with low cost. This automated seed sowing robot tackles some key problems of existing methods such as labor intensity, environmental impacts, and inefficiency. It's an autonomous movement machine which works automatically by calculating spacing of seeds with proper depth of planting through a micro-controller. The robot can plant a variety of seed types, both with one and multiple seeds per hole while executing provisions to create optimal directions row-wise as well as column depending on pre-programmed instructions. GPS navigation is fitted to the robot to ensure seeds are placed correctly each time, thereby improving uniformity and decreasing overlap. The achieved accuracy rate is 94.75% and the coverage efficiency is improved by comparison to conventional methods. Additionally, consistent performance results were confirmed in different soil types (sandy, loamy, clay) to show that the system can be used more widely. The key to this study is that robotic technology can be used as a basis for expanding and modifying the way agriculture is done in this industry, providing an inexpensive and accurate method for small farms. © 2024 IEEE.

关键词： Closed loop control systems

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Modeling and Analysis of 300 MW Photovoltaic System Using ETAP and Harmonic Filter Design 3

Modeling and Analysis of 300 MW Photovoltaic System Using ET...

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3rd international symposium on Instrumentation, control, Artificial Intelligence, and robotics, ICA-SYMP 2023

作者： Rehmat, Mehrauz Ansari, Arsalan Maqsood-Ur-Rehman Dawood Uet Department of Electronic Engineering Karachi Pakistan

ISBN: (纸本)9781665473538

Electricity is important in our life. The majority of electricity are generated by using fossil fuel. There are various drawbacks linked with the use of fossil fuel such as emission of greenhouse gases which pollute the environment. Among all renewable energy systems, the solar photovoltaic (PV) system has remarkable results to overcomes these problems due to its availability, cheap and environment friendly. In this paper, 300 MW photovoltaic power system is designed and modeled on Electrical Transient Analysis Program (ETAP). The proposed system consists of 4 strings of photovoltaic arrays and each string of PV array is made up of 27 series connected panels and 9000 parallel connected panels. ETAP is used to perform power flow analysis and harmonic distortion analysis. Also, single-tuned passive filters are designed to reduce the effects of harmonics. © 2023 IEEE.

关键词： Fossil fuels

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Design and Optimization of High-Pressure Sensitivity Irregular Side-hole Fiber Based on Fiber Bragg Grating Sensors 3

Design and Optimization of High-Pressure Sensitivity Irregul...

引用

3rd international symposium on Sensor Technology and control, ISSTC 2024

作者： Li, Zhenyu Dai, Shu Tong, Xiaoling Liang, Lei Wuhan University of Technology National Research Center for Fiber Optic Sensing Technology and Network Engineering Wuhan China

ISBN: (纸本)9798331541637

The pressure sensor based on Side-hole Fiber Bragg Grating (SH-FBG) can effectively reduce the crosstalk between pressure and temperature in operation, making it particularly suitable for high-temperature and high-pressure environments in oil wells. However, the relatively low sensitivity of SHF pressure sensors limits their further application in oil wells. In this paper, the key to improving the sensitivity of SHF pressure sensors is theoretically derived to be the increase in the unevenness of stress generated at the core in the X and Y directions. Finite element analysis is then employed to investigate the influence of SHF cladding shape on pressure sensing characteristics. By optimizing the waveguide structure of SHF and proposing an Irregular Side-hole Fiber (ISHF) with a cladding shape of negative curvature arc, the pressure sensitivity is increased to 33.37pm MPa. This effectively enhances the pressure sensitivity of SHF, holding significant implications for high-pressure monitoring in oil wells. © 2024 IEEE.

关键词： Holey fibers

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Comparative Analysis of control Systems for Propulsion in Remote-controlled Unmanned Underwater Vehicles 3

Comparative Analysis of Control Systems for Propulsion in Re...

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3rd IEEE international Conference on Problems of Informatics, Electronics and Radio engineering, PIERE 2024

作者： Patrashevskii, Aleksandr Mamatov, Aleksandr Lukichev, Dmitry Poliakov, Nikolai Demidova, Galina Itmo University Faculty of Control System and Robotics Saint-Petersburg Russia

ISBN: (纸本)9798331516321

This paper evaluates three control systems for the propulsion of remote-controlled unmanned underwater vehicles utilizing direct current (DC) motors with propellers. Simulation models based on dynamic and static propeller parameters were used to compare closed-loop control systems with Proportional-Integral-Derivative (PID) and multi-loop controllers, alongside an open-loop control system based on static propeller characteristics. The results reveal that the multi-loop control system exhibits superior performance by effectively controlling transient processes and mitigating external disturbances on the motor shaft. In contrast, the traditional PID controller achieves near-zero velocity error but experiences longer response times and armature current oscillations during startup. The open-loop control system offers comparable performance to the multi-loop system with simpler implementation and similar startup current levels to the PID controller. The study concludes that the choice of control strategy should be based on operational conditions: an open-loop system is advisable for environments without significant propeller obstructions due to its simplicity, while the multi-loop control system with current saturation is recommended in settings with potential disturbances to minimize current levels and reduce failure risks. © 2024 IEEE.

关键词： Closed loop control systems

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Visual and LiDAR SLAM Performance in Campus Scenes 3

Visual and LiDAR SLAM Performance in Campus Scenes

引用

3rd international Conference on Service robotics, ICoSR 2024

作者： Zhou, T.H. Fang, R. Wang, F.L. Wang, G. Wu, L. Su, K.W. Xu, L. Pu, H.Y. Luo, J. College of Mechanical and Vehicle Engineering Chongqing University Chongqing China Chongqing University The State Key Laboratory of Mechanical Transmission for Advanced Equipment Chongqing China Beijing China

ISBN: (纸本)9798350367119

Simultaneous Localization And Mapping (SLAM) is a critical technology for environment perception in the fields of mobile robotics and autonomous vehicles, providing environmental information for robot system path planning and control. Depending on the primary sensors used, SLAM systems can be categorized into visual SLAM and laser SLAM. This paper collects datasets of Chongqing University and conducts comparative experiments by reproducing several state-of-the-art visual and laser SLAM algorithms. Based on the experimental results, it can be concluded that the integration of IMU signals in FAST-LIO can enhance the accuracy of map reconstruction, but it tends to experience drift during large-scale mapping. LeGO-LOAM, equipped with a loop closure detection module, demonstrates superior performance in overall trajectory accuracy compared to other algorithms. VINS-FUSION, by fusing a binocular camera and IMU, improves the global consistency and local precision of the map. © 2024 IEEE.

关键词： Motion planning

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Automated Biofloc Technology for Fish Farming with GSM based Monitoring System 3

Automated Biofloc Technology for Fish Farming with GSM based...

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3rd IEEE international Conference on robotics, Automation, Artificial-Intelligence and Internet-of-Things, RAAICON 2024

作者： Hassain, Md Mehedi Gani, Muhammad Osman Rahman, Abdur Hasnat, S.M. Rahbar Abdullah International Islamic University Chittagong Dept. of Electrical & Electronics Engineering Chittagong Bangladesh East Delta University Dept. of Electrical & Electronics Engineering Chittagong Bangladesh

ISBN: (纸本)9798331534400

Biofloc technology mitigates aquaculture's environmental impact by using microbial flocs to convert organic waste into nutrient rich feed. To enhance water quality management, our research focuses on a GSM based monitoring system for real time data collection and analysis. The system integrates pH, temperature, and ultrasonic sensors with an Arduino Uno microcontroller, GSM module, servo, and pump motors to monitor and regulate water quality. The system measures timely and crucial data on water quality, including parameters such as temperature, pH levels, and the state of the feeding box. The pH and temperature sensors provide analog readings, while the ultrasonic sensor monitors feeding box levels. Food management is controlled by a servo motor that operates the feeding box, and a pump motor maintains water quality. The system uses temperature and pH sensors for rapid hazard detection, minimizing ammonia and nitrite buildup risks. The GSM module enables real time data connectivity, allowing users to track and control system operations remotely. This study empowers fish farmers and hobbyists with real-time water quality data, promoting informed decision-making to enhance aquatic health and productivity. It offers valuable insights to the broader aquaculture community. © 2024 IEEE.

关键词： Decision making

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Pulse Wave Measurement and Analysis Based on A Bandage-Based Pressure Sensing System 3

Pulse Wave Measurement and Analysis Based on A Bandage-Based...

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3rd international symposium on Sensor Technology and control, ISSTC 2024

作者： Jiang, Enze Nie, Baoqing Li, Siyu Lu, Yun Yu, Chuanhao Yin, Niyuan School of Electronic and Information Engineering Soochow University China

ISBN: (纸本)9798331541637

To address the shortcomings of strong subjectivity and difficult control of pulse-taking pressure in current pulse wave measurement, this paper designs a bandage-based pressure sensing system (BPSS). The BPSS consists of elastic bandages, four flexible pressure sensors, hardware circuits and a user interface on computer. It is capable of simultaneously measuring pressure distribution along the bandage as well as the real-time pulse waveforms. This paper calibrates the properties of the sensor through piecewise fitting with a power-exponential function, achieving a measurement accuracy of 0.1 mmHg in the pressure range of 35mmHg ∼ 220 mmHg. Based on the BPSS, an effective filtering and period segmentation method in pulse wave processing are proposed. Accordingly, the relationship among pulse waveforms index H 4 H 1, pulse-taking pressure, and the blood pressure of the subjects has been investigated. This BPSS proposes a method to measure, process and analyze the pulse waveforms, providing references for estimating the blood pressure relying on pulse waveforms in a convenient way. © 2024 IEEE.

关键词： Exponential functions

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