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第42届中国控制会议

作者： Xin Guo Jian Liu Yaoxu Lei School of Artificial Intelligence and Data Science Hebei University of Technology Control Engineering Technology Innovation Center of Hebei Province Hebei University of Technology

The classic OpenPose convolutional neural network model has excellent performance in the field of human posture *** it also has some shortcomings,such as poor accuracy and low accuracy of human posture detection *** improved OpenPose network model is proposed to solve these *** of all,the feature extraction network VGG-19 of OpenPose model is replaced by the residual network(ResNet) with residual learning structure to improve the training accuracy of the ***,at the same stage,the dual-branch parallel structure is changed to the single-branch serial structure to predict the part confidence maps(PCMs) and the part affinity fields(PAFs) of human joint ***,the structure of the convolution kernel is optimized and the residual network is *** accuracy of the algorithm is improved and the computational speed of the model is guaranteed as much as *** verification on MPII data sets shows that the detection accuracy of the improved algorithm model in this paper can reach 79.5%,which is 3.9% higher than the original *** the same time,it has a higher accuracy of detection compared with other human posture detection *** can be applied to human posture detection with a high pursuit of the accuracy of detection of the model,such as the field of intelligent driving and rehabilitation training and so on.

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Energy Storage Configuration Method of Virtual Power Plant Considering Source-Load Uncertainty

Energy Storage Configuration Method of Virtual Power Plant C...

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Clean Energy and Electric Power engineering (ICCEPE), International Conference on

作者： Yang Bai Haiyan Song Tianneng Qian Xinyu Xu Wei Qin Weihua Gu Zihao Zhang Economic and Technological Research Institute of State Grid Nantong Power Supply Company Nantong China College of Electrical Engineering and Control Science Nanjing TECH University Nanjing China

ISBN: (数字)9798350390315

ISBN: (纸本)9798350390322

With the rapid development of virtual power plants, how to eliminate the negative impact of uncertainty on both sides of source and load on virtual power plants has become an urgent problem to be solved. In this paper, a virtual power plant energy storage configuration method based on two-stage robust optimization is proposed to deal with the uncertainty of photovoltaic output and load demand. By constructing an uncertain set, the scheduling scheme of the system in the ‘worst’ scenario is optimized. The effectiveness and superiority of the method under different uncertainty conditions are verified by simulation analysis, which provides a reference for the configuration of energy storage capacity in the construction of virtual power plant.

关键词： Photovoltaic systems Green energy Uncertainty Costs Systems operation Virtual power plants Reliability engineering Power systems Optimization Energy storage

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Model Predictive control Based Reference Generation for Optimal Proportional Integral Derivative control

Model Predictive Control Based Reference Generation for Opti...

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Mediterranean Conference on control and Automation (MED)

作者： Fatos Gashi Khalil Abuibaid Martin Ruskowski Achim Wagner German Research Center for Artificial Intelligence (DFKI) Kaiserslautern Germany Department of Mechanical and Process Engineering Chair of Machine Tools and Control Systems RPTU Kaiserslautern-Landau Kaiserslautern Germany

ISBN: (数字)9798350395440

ISBN: (纸本)9798350395457

We introduce an alternative approach towards optimal proportional integral derivative (PID) control, consisting of model predictive control (MPC) based reference generation. To this end, we have integrated the reference as part of optimization variables of the resulting problem, where a deliberate sequence of errors is induced to obtain an optimal PID control action. In addition, the desired behavior of the PID controller is achieved without the need for internal modification of the PID gains. To better highlight the ability of coping with poor PID tuning, several test cases consisting of progressively degraded PID gains are presented. Validation of the proposed strategy is displayed by comprehensive simulations using two different plants.

关键词： PI control Automation PD control Tuning Optimization Predictive control

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A Multi-object Detection and Tracking Method Based on the Fusion of Lidar and Camera

A Multi-object Detection and Tracking Method Based on the Fu...

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第34届中国控制与决策会议

作者： Chaoqun Li Ting Qu Xin Li Haiyan Zhao Bingzhao Gao State Key Laboratory of Automotive Simulation and Control Jilin University Department of Control Science and Engineering Jilin University Clean Energy Automotive Engineering Center Tongji University

Aiming at the problem that some detection networks have high accuracy but poor real-time performance and are not easy to deploy on embedded devices when used to intelligent vehicles,the method in this paper is *** it solves the problem of global target tracking respectively and trajectory management in multi-objective ***'s an improved method for object detection and tracking based on the data fusion of lidar and *** this method,first,Yolov3 algorithm,which is accelerated by KCF algorithm,is used to recognize the object in the image *** cluster the point ***,align sensor data in time and ***,the object information of the two sensors is supplemented by the Hungarian algorithm *** then,the multi-frame matching is carried out through the key point matching count,and the multi-frame information is used for the object ***,the continuous motion trajectory of each object in the surrounding environment can be *** verification shows that the position detection error of this method is less than 5%,and the total processing time of a single frame is 154 *** with other methods,this method can significantly improve the processing speed,which is convenient to enhance the real-time data processing as a step of the perception module.

关键词： Sensor fusion Object detection Calibration Tracking

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Systematization and Synchronization of Target Processes in Organizational Systems

Systematization and Synchronization of Target Processes in O...

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Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO)

作者： S. V. Kozlov A. N. Kubankov Russian Academy of Sciences Federal Research Center “Computer Science and Control” Moscow Russia Moscow Technical University of Communications and Informatics Moscow Russia

The problem of synchronization of heterogeneous processes in organizational systems is considered against the background of the transition of systems from a tectocentric to a holistic paradigm of their development. The process basis for the presentation of organizational systems in the conditions of “blurring” of their boundaries, taking into account the transition to a holistic paradigm, becomes a new basis for the development of organizational, system-technical and technological solutions for the creation and development of the material basis of organizational systems. The role and place of the process system in substantiating the directions of implementation of the strategy for the development of organizational systems and determining the overall structure of the material and technical basis of organizational systems is shown. The systematization and classification of heterogeneous processes in the life cycle of organizational systems is presented, the subject and objects of synchronization, the necessary and sufficient conditions for its implementation in organizational systems are determined. It is shown that synchronization at the process level in organizational systems should be carried out at the level of such attributes of related processes as outputs and inputs of processes, control actions and the necessary resources for the implementation of processes.

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Fault Diagnosis Method for On-Board Interface Equipment of CTCS-3 Based on Temporal Knowledge Graph Completion

Fault Diagnosis Method for On-Board Interface Equipment of C...

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IEEE International Conference on Networking, Sensing and control

作者： Bingyan Zhou Daqian Zhang Jidong Lv Hongjie Liu Zixu Zhao Zhengwei Luo School of Automation and Intelligence Beijing Jiaotong University Beijing China National Engineering Research Center of Rail Transportation Operation and Control System Beijing Jiaotong University Beijing China

ISBN: (数字)9798350365221

ISBN: (纸本)9798350365238

Chinese Train control System level 3 (CTCS-3) train control onboard equipment plays a crucial role in ensuring train safety and improving operational efficiency. And the on-board interface equipment enables the interaction between the on-board Automatic Train Protection (ATP), ground equipment, drivers, and trains. While its fault accounts for a relatively high proportion of faults, therefore, this paper proposed a fault diagnosis method for on-board interface equipment based on temporal knowledge graph completion. Firstly, this method introduces temporal series to integrate travel logs and fault statistics, which extract fault phenomena and perform entity alignment, construct the temporal knowledge graph. Secondly, on this basis, we constructed a fault diagnosis network based on knowledge graph completion, which incorporates the Temporal-Translating Embedding (T - TransE) vectorization algorithm, Bidirectional Long Short-Term Memory (Bi-LSTM), and Self-Attention (SA) mechanism for temporal feature extraction. Finally, the T - TransE vectorization model was pretrained using the on-board interface equipment fault data from a railroad station in recent years for selecting the most effective temporal integration method. In order to validate the superiority of the proposed fault diagnosis method and the effectiveness of the data combination method, the diagnostic network without data combination and temporal relationship introduction, and other common fault diagnostic networks, were tested using the on -board fault data. Compared with the following fault diagnosis methods, the model proposed in this paper achieved the highest fault diagnostic accuracy of 96.8%.

关键词： Fault diagnosis Accuracy Knowledge graphs Feature extraction control systems Data models Sensors Protection Long short term memory

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Comparative Analysis of Methods for Estimating the Rate of Population Aging

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Biophysics (Russian Federation) 2022年第6期67卷 1055-1058页

作者： Dontsov, V.I. Krut’ko, V.N. Yermakova, N.A. Federal Research Center Computer Science and Control Russian Academy of Sciences Moscow 119333 Russian Federation Sechenov First Moscow State Medical University Ministry of Health of the Russian Federation (Sechenov University) Moscow 119991 Russian Federation

Abstract: The essence of aging is a decline in total vitality with age, being basic personal characteristics of human potential. Viability (v) is defined as the probability of surviving through 1 year. Mortality (m) is defined as the probability of dying within the course of the year and, therefore, has an opposite meaning to the term viability but can be an adequate index to estimate the degree of aging of the organism. For the quantitative analysis of aging, a Gompertz–Makeham model (a traditional approach) has been widely used for a long time in describing the phenomenon of exponential increase in mortality rate with age rather well. The other approach to assessing the aging process is to calculate the rate of increment to the mortality rate with age (d(m)), which characterizes the rate of the aging process. The aim of this work is to compare the informativeness, accuracy, and convenience of these approaches to solve the problem of estimating the rate of human aging based on the analysis of age-specific mortality rate in an age group of the human population. It is shown that d(m) is the most accurate, easy to calculate, and mathematically and biologically adequate indicator of the aging rate. This indicator is seen as important to estimate historical changes in the characteristics of the aging of the human population: constancy in the aging rate in history and decline in the aging rate since the middle of the 20th century for middle and older ages as well as the preservation of a reduced aging rate for centenarians. © 2022, Pleiades Publishing, Inc.

关键词： aging aging in history aging rate Gompertz–Makeham model increment to mortality intensity

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Distribution of Power Impact Among Grid-Forming Devices 7

Distribution of Power Impact Among Grid-Forming Devices

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7th IEEE Conference on Energy Internet and Energy System Integration, EI2 2023

作者： Ji, Haohan Han, Zijiao Chen, Lei Xie, Bing Jian, Aolin Sun, Guangyu Yuan, Meng Li, Jiajue Tsinghua University Department of Electrical Engineering Beijing China State Grid Liaoning Electric Power Co. Ltd. Dispatch Control Center Shenyang China Electric Power Research Institute State Grid Liaoning Electric Power Co. Ltd. Shenyang China

ISBN: (纸本)9798350345094

Grid-forming devices can provide frequency and voltage support and are considered crucial components of future power systems. However, their process of power impact distribution for frequency support remains unclear. This paper, based on the three-stage theory of synchronous generator power impact distribution, analyzes the similarities and differences in control structure and physical processes between grid-forming devices and synchronous generators. It concludes that the distribution of power impact for grid-forming devices involves only two stages: the immediate stage distribution is influenced by electrical distance, while the steady-state distribution is based on droop coefficients. The dynamic process of grid-forming devices is influenced by both virtual inertia and droop coefficients, in contrast to the second and third stages of synchronous generators, which are influenced by inertia and governor coefficients, respectively. Furthermore, the impact of inner-loop control in grid-forming devices on electrical distance calculation is analyzed, and it is pointed out that virtual impedance control can manipulate electrical distance and control the distribution of immediate stage. Finally, a two-machine, two-area interconnected system is established to validate the theoretical analysis through simulation. © 2023 IEEE.

关键词： Synchronous generators

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Insights into host-microbe interaction:What can we do for the swine industry?

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Animal Nutrition 2021年第1期7卷 17-23页

作者： Lijuan Fan Bingnan Liu Ziyi Han Wenkai Ren State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources Guangdong Laboratory of Lingnan Modern AgricultureNational Engineering Research Center for Breeding Swine IndustryGuangdong Provincial Key Laboratory of Animal Nutrition ControlCollege of Animal ScienceSouth China Agricultural UniversityGuangzhou510642China

Recent discoveries have underscored the cross-talk between intestinal microbes and their ***,intestinal microbiota impacts the development,physiological function and social behavior of *** influence usually revolves around the microbiota-gut-brain axis(MGBA).In tbis review,we firstly outline the impacts of the host on colonization of intestinal microorganisms,and then highlight the influence of intestinal microbiota on hosts focusing on short-chain fatty acid(SCFA)and tryptophan metabolite-mediated *** also discuss the intervention of intestinal microbial metabolism by dietary sup-plements,which may provide new strategies for improving the welfare and production of ***,we summarize a state-of-the-art theory that gut microbiome affects brain functions via metabolites from dietary macronutrients.

关键词： Gut microbiota Microbiota-gut-brain axis Pig Short-chain fatty acid Tryptophan

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Visual Loop Closure Detection Based on Multiscale Fusion and Offset Consistency

Visual Loop Closure Detection Based on Multiscale Fusion and...

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Chinese Automation Congress (CAC)

作者： Yongquan Lv Wei Gong Li Li The Department of Control Science and Engineering 201804 Tongji University Shanghai China The Department of Control Science and Engineering 201804 Shanghai Research Institute for Intelligent Autonomous Systems Tongji University Shanghai China

For robots and navigation systems, determining if a targeted location has been visited before is a challenging task by visual method. This paper presents a multi-scale vision loop closure detection algorithm that focuses on establishing balance between limited computational resources and localization accuracy. It takes complementary advantages of both local and global descriptors. The extracted multi-scale features are highly robust to changes in illumination, appearance, viewpoint and occlusion. The intra-normalization combined with center adaptation approach improves the algorithm generalization. In addition, we design a new spatial scoring method called Offset Consistency Scoring. This method penalizes the relatively large spatial offsets in the matched positions, thus effectively measuring the consistency of the overall movement of the elements. Experiment results show our proposed algorithm have much lower computational complexity with similar accuracy performance compared to the state-of-the-art spatial scoring methods.

关键词： Location awareness Visualization Sensitivity Navigation Semantics Memory management Position measurement

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