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robotics, control and Automation engineering (rCAE), International conference on

作者： Shu Jiang Jixing Zhao Bingyou Liu dongxiang Zhang Dept. School of Electrical Engineering Anhui Polytechnic University Wuhu Dept. R&D Department Huaneng Chaohu Power Generation Co. Ltd. ChaoHu Dept. R&D Department Anhui Tianbing Electronic Technology Co. Ltd. Wuhu

ISBN: (数字)9798350355642

ISBN: (纸本)9798350355659

When detecting rotating objects, the rotating objects are usually in complex industrial environments with complex backgrounds and many interferences. Traditional visual measurement methods are difficult to effectively distinguish between the rotating object and the background, resulting in measurement errors. In this paper, a spindle is used as the image acquisition medium, and a semantic segmentation method based on deep learning is introduced to solve the difficulty of visual vibration measurement of rotating shafts. The semantic segmentation network outperforms the traditional visual measurement methods in extracting the features of rotating objects, and the network model, based on the improvement of U-Net, incorporates the improved CSimAM attention mechanism in each of the encoding and decoding stages of the bottleneck layer, which makes the network more adept at segmenting rotary axes in backgrounds with different lighting, blurring and similarity. The study in this paper not only verifies the effectiveness and superiority of the improved U-KAN network in the visual measurement of rotor shaft vibration displacement, but also provides an important theoretical and practical basis for subsequent research.

关键词： Shafts Vibrations deep learning Visualization Semantic segmentation Semantics rotors Vibration measurement Feature extraction rotation measurement

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design of a High-Precision real-Time detection Oil Pipeline Leakage Alarm System G300 9

Design of a High-Precision Real-Time Detection Oil Pipeline ...

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9th International conference on Mechanical and Electronics engineering, ICMEE 2023

作者： Zhao, Lu Xiong, Sen Czap, László Jia, Xian Graduate Work School Xi'an Siyuan University Xi'an China Xi'an Loco Electronic Technology Co. Ltd R&d Department Xi'an China Institute Of Automation And Infocommunication University Of Miskolc Miskolc Hungary School Of Engineering Xi'an Siyuan University Xi'an China

ISBN: (纸本)9798350307146

The G300 pipeline leak monitoring and alarm positioning system developed in this article adds the most advanced infrasound wave technology on the basis of the negative pressure wave and volume balance method. It is alarm for the alarm of abnormal incidents such as leakage during the operation of the pipeline operation. Positioning, with high sensitivity and positioning accuracy. combining with GPS's core positioning navigation system and accurate pipeline electronic maps, the management department can accurately find the leakage site in time and minimize the loss caused by abnormal events such as pipeline leakage. In the experiments of more than half a year, more than 100 leakage alarm tests were conducted. The sensitivity, positioning accuracy, maximum positioning error, system response speed, and leak alarm time all met with high design requirements. © 2023 IEEE.

关键词： Alarm systems

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Multi-Attention Fusion Lightweight Single Object Tracking Algorithm

Multi-Attention Fusion Lightweight Single Object Tracking Al...

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robotics, control and Automation engineering (rCAE), International conference on

作者： Juntao Bao Jixing Zhao Bingyou Liu dongxiang Zhang Dept. School of Electrical Engineering Anhui Polytechnic University Wuhu Dept. R&D Department Huaneng Chaohu Power Generation Co. Ltd. ChaoHu Dept. R&D Department Anhui Tianbing Electronic Technology Co. Ltd. Wuhu

ISBN: (数字)9798350355642

ISBN: (纸本)9798350355659

With the continuous development of mobile application platforms, balancing real-time performance and accuracy has become a major challenge for object tracking technology, especially on resource-limited mobile devices. To address these challenges, a novel tracking algorithm called NanoMViT (Nano Mobile Vision Transformer for Object Tracking) and the ECSA (Efficient Channel and Spatial Attention) multi-attention module were proposed. By optimizing the backbone network architecture, the parameters of each module were significantly reduced. The final algorithm has a parameter count of only 709.134k and MACs of only 264.127M. compared to the baseline algorithm, the parameter count is reduced by 66.3%, and the computational load is reduced by 50.2%. To validate the algorithm's performance, comprehensive evaluations were conducted on multiple standard tracking datasets, including VOT2018, dTB70, and LaSOT. The results show that the algorithm outperforms the baseline in aspects such as rapid deformation, tracking of similar objects, and performance under complex lighting conditions. These findings demonstrate that the algorithm has high practicality and efficiency in mobile tracking applications, but further validation is required in more complex environments.

关键词： Accuracy Systematics deformation Surveillance Lighting Transformers real-time systems Object tracking Security Standards

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distribution Characteristics of Transmitted diffuse Solar radiation on the Indoor Surface

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Journal of Thermal Science 2022年第6期31卷 1939-1947页

作者： YAO Wanxiang TIAN Wanfeng SHANG Jiacheng HE Haiyan dONG Jiajun CAO Weixue School of Energy and Safety Engineering Tianjin Chengjian UniversityTianjin 300384China Tianjin Key Laboratory of Civil Structure Protection and Reinforcement Tianjin Chengjian UniversityTianjin 300384China Key Laboratory of Solar Energy Utilization and Energy Saving Technology of Zhejiang Province Zhejiang Energy Group R&D Institute Co.Ltd.Hangzhou 311121China

The transparent envelope structure has huge energy-saving potential, which is the key point to reduce building energy consumption and improve the thermal building environment. The solar radiation transmitted through the transparent envelope structure(transmitted solar radiation) is reflected, scattered and absorbed by the indoor surface, which has a significant impact on the heat gain of the building. In this paper, firstly, the diffuse radiation received by different depths of various indoor surfaces is measured by experimental tests, and the distribution function of transmitted diffuse solar radiation(TdSr) on the indoor surface is established. Secondly, the diffuse solar radiation received by the indoor and outdoor surfaces in different seasons is continuously monitored;the variation of TdSr with time is analyzed, and the distribution function of TdSr on indoor surface with time is proposed. Finally, based on the temporal and spatial distribution characteristics of diffuse radiation under different weather conditions, the variation of TdSr with the weather is studied, and the distribution function of TdSr on the indoor surface with weather changes is established. The distribution function of the TdSr on the indoor surface under different depths, time and weather conditions obtained in this study can supplement and improve the theory of building heat gain and load, and help accurate simulation of building energy consumption.

关键词： transmitted solar radiation diffuse radiation indoor wall surface distribution characteristics building heat gain

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Molecular dynamics for electrocatalysis:Mechanism explanation and performance prediction

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Energy reviews 2023年第3期2卷 1-22页

作者： Yue Wang Haodong Shao Chengxu Zhang Feng Liu Jianqiang Zhao Sanyuan Zhu Michael K.H.Leung Jue Hu Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming650093China State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunming650093China Yunnan Precious Metal Provincial Laboratory Co. Ltd.Kunming650106China Ability R&D Energy Research Centre School of Energy and EnvironmentCity University of Hong KongHong KongChina

designing low-cost,high-performing electrocatalysts is key to green energy development,yet relying solely on the"synthesis-characterization"catalyst screening model is time-consuming and *** are two main applications for Molecular dynamics(Md)simulations in electrochemical reactions:explaining mechanisms and predicting performance,which play important roles in fabricating robust *** simulations of electrocatalysis include the adsorption and desorption of reactants,intermediates,and products in this *** structural changes in active centers under various electric field states,the effects of alkali metal cations,common anions,and pH effects in the electrolyte on the electrocatalytic process are also discussed to reveal the reaction *** the prediction of the catalysts performance in specific reaction using Md simulations are ***,the optimization and challenges of Md techniques are discussed.

关键词： Molecular dynamics simulations Electrocatalysis Electrolyte solution Explain the mechanism Predictive performance

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design and research of Improved Tail Hydraulic Tension Belt conveyor 23

Design and Research of Improved Tail Hydraulic Tension Belt ...

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2023 Intelligent Sensing and Industrial Automation, ISIA 2023

作者： Hao, Yaming Liu, Qinglin National Energy Group Shendong Coal Group High-end Equipment R&D Center China China Coal Technology & Engineering Group Taiyuan Research Institute Co. Ltd. China China National Engineering Laboratory for Coal Mining Machinery Taiyuan China Shanxi Tiandi Coal Machinery Equipment Co. Ltd. Shanxi Taiyuan China

ISBN: (纸本)9798400709401

Abstract: For belt conveyor, tension device is very *** the tension device is effective is related to the working efficiency and life of the belt *** the tension device does not timely control the tension force of the conveyor belt, it will lead to the belt slack or excessive wear in the operation of the belt *** present, the tension device of belt conveyor has defects, which can not meet the needs of mine ***, an improved belt conveyor tension device is put ***, this paper introduces the working principle and basic concept of the tension ***, the structure and working principle of the improved belt conveyor tension device are ***, the characteristics and advantages of the new tension device are summarized. © 2023 ACM.

关键词： Belt conveyors

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Pd Location and Interference Suppression Method of Power Cable Based on Cross-correlation

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International Journal of High Speed Electronics and Systems 2025年

作者： Guo, Ningming Feng, Zhichang Chen, dong College of Electrical and Electronic Engineering North China Electric Power University Changping Beijing102206 China Technology R&D Center C-EPRI electrical Engineering Co. Ltd NARI group Changping Beijing102200 China

This paper proposes a novel partial discharge (Pd) identification and location method based on cross-correlation. The technique aims to solve the problem of weak signal identification and interference suppression. Taking advantage of the characteristics that the time axis of Pd pulses at both ends of the cable is symmetrical and the interference signal is asymmetric, the cross-correlation computation is carried out through the alignment of reference pulses to suppress the interference effects such as corona. In calculating the basis Pd pulse time difference, the synchronous pulse that is actively injected is used to shorten the data time window and reduce the influence of noise. The accurate time difference is extracted through generalized cross-correlation (GCC). In this paper, the above methods are verified by simulation and experiment. Simulation and computer analysis have been used to test the suggested approach for identifying power cable attenuation. By enhancing the signal-to-noise ratio (SNr) from 28dB to 47dB, the technique reduces the impacts of cable attenuation. Its ability to precisely locate Pd sources within a 5m error margin, improve weak Pd signal detection, and reduce pulse interference makes it a dependable option for practical uses. The analysis results show that the interference can be suppressed and the weak signal recognition ability can be improved through multiple correlation operations, which lays the foundation for accurate Pd location. © 2025 World Scientific Publishing company.

关键词： Signal to noise ratio

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Enhancing Anaerobic digestion of Thermally Hydrolyzed Sludge by Sequencing Batch reactor With/Without Membrane componentenhancing Anaerobic digestion of Thermally Hydrolyzed Sludge by Sequencing Batch reactor With/Without Membrane component

SSRN

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SSrN 2023年

作者： ren, Zhengran Gao, Jinhua Wang, Jiawei Wen, Yang Hao, Shan Zhang, Han Engineering Technology Research Center for Municipal Sewage Reclamation R&D Center Beijing Drainage Group Co. Ltd. Beijing100124 China Tonghui River Basin Company Beijing Drainage Group Co.Ltd. Beijing100082 China

This study compared the performance of anaerobic sequencing batch reactor (ASBr) and continuous stirred tank reactor (CSTr) for biogas production from thermally hydrolyzed sludge. The influent total solids (TS) concentration was varied from 2%, 4%, 6%, to 8% at a thermal hydrolysis temperature of 160°C. The results showed that ASBr outperformed CSTr with an increase in biogas yield by 19.80%, 10.78%, and 13.98% at influent TS concentrations of 2%, 4%, and 6%, respectively. However, at an influent TS concentration of 8%, no significant difference was observed between the two reactors due to poor sludge settling in ASBr. At a thermal hydrolysis temperature of 170°C and an influent TS concentration of 8%, the biogas production in ASBr was 18.04% higher than that in CSTr, and sludge settling occurred in ASBr. Even with an HrT shortened to 8 days, ASBr still operated stably with a biogas yield of 256 L/kgTS at an influent TS concentration of 6% and thermal hydrolysis temperature of 160°C, which was only 7.25% lower than that at an HrT of 15 days. The biogas production in the anaerobic membrane bioreactor (AnMBr) increased by 6% compared to that in ASBr © 2023, The Authors. All rights reserved.

关键词： Biogas

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Study of Oilfield development cost Market Index Modeling Based on Big data

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Journal of Energy resources technology, Part B: Subsurface Energy and Carbon Capture 2025年第2期1卷 021008页

作者： Shi, Mingyu Zhang, Fengyuan Lu, ruihan Cao, Wenxing Liu, Xia Liu, Weidian Liu, dianyu China National Petroleum Corporation (CNPC) R&D Department Beijing¾100007 China State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) Beijing¾102249 China College of Petroleum Engineering China University of Petroleum (Beijing) Beijing¾102249 China PipeChina Beijing Pipeline Co. Ltd Beijing¾100101 China

due to recent oil price fluctuations, oil companies have optimized assets and promoted joint ventures, leading to a need for fast, accurate oilfield asset evaluation, including development and growth costs. Oilfield development costs are dynamically influenced by internal and macroeconomic factors. Using big data analysis witha eviews economic analysis software owned by IHS (E-VIEW), a model was developed to analyze cost influencers. research on nine main factors showed strong scientific correlations, linking expansion costs with market indexes. This provides technical support for more efficient and accurate cost estimations and predictions of oilfield assets.

关键词： subsurface energy energy extraction big data oilfield cost market modeling petroleum engineering development cost

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Fast Trajectory Planning for AGV in the Presence of Moving Obstacles:A combination of 3-dim A* Search and QCQP 33

Fast Trajectory Planning for AGV in the Presence of Moving O...

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第33届中国控制与决策会议

作者： Bai Li Youmin Zhang Yakun Ouyang Yi Liu Xiang Zhong Hangjie Cen Qi Kong College of Mechanical and Vehicle Engineering Hunan University Department of Mechanical Industrial and Aerospace EngineeringConcordia University Autonomous Driving R&D Center Xiaopeng Automobile Technology Co.Ltd JDX R&D Center *** American Technologies Corporation

ISBN: (纸本)9781665431293

This paper concerns about the automatic guided vehicle（AGV） trajectory planning *** it should be formulated as an optimal control problem（OCP） and solved via numerical *** concrete procedures to solve an OCP numerically include discretizing it into a mathematical programming（MP） problem and solving the MP via an appropriate ***,most of the predominant MP solvers only derive local optima because global optimization takes too *** the predominant MP solvers only find local optima,the solution quality relies on the homotopy class of the initial guess,*** starting point of an optimization process.A search in the abstracted x-y-time state space is adopted to find a suitable initial guess,which directly plans a coarse trajectory rather than a *** the initial guess,an MP in the form of a quadratically constrained quadratic program（QCQP） is solved *** results show that the average CPU time spent on the first-A-then-QCQP method is only 1.4035 seconds in *** codes are provided at https://***/libai1943/AGVotionlanningithovingbstacles.

关键词： collision avoidance Trajectory planning Numerical Optimal control Automatic Guided Vehicle

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