bluuebunny/crossref_metadata_2025_split huggingface dataset:
Layout Optimization and Multi-scenes Intelligent Inspection Scheme Design Based on Substation Video Monitoring
Authors: Li Xinzhuo , Zhang Junjie , Zhang Li , Chen Xuejin 
Published: August 2023

Abstract
In order to realize intelligent inspection of substation and improve inspection efficiency. This paper aims at the problems of irregular distribution, low reuse, low coverage of inspection points and waste of investment in the current substation video monitoring system. Propose a set of efficient distribution principles and methods. In view of the lack of scenario consideration in the preparation of substation inspection tasks, which leads to the lack of flexibility and poor practicability of inspection work. It is proposed to carry out multi scene inspection work according to the trigger conditions of different scenes. Through comprehensive collection of inspection data, combined with artificial intelligence algorithm, the overall perception of equipment operation status is realized. Taking a 220kV substation as an example, the scene based compilation and application based on the distribution of video monitoring system in the substation and in combination with inspection tasks. The intelligent inspection of the substation is realized to the greatest extent, which provides a certain idea for the subsequent large-scale promotion, construction and application of intelligent inspection of the substation.
Simulation Analysis of DC Cable Terminal under Polarity Reversal Voltage
Authors: Shen Yubo , Lv Tong , Yang Shijie , Zhang Jian , Wang Lei , Zhou Hongyi , Zhou Meng , Li Zhibin , Han Siwei , Wang Jinsheng 
Published: August 2023

Abstract
High voltage direct current transmission has the advantages of high transmission capacity, low loss, no simultaneous operation of the AC system on both sides, and small loss on the power grid in case of failure. The stability of synchronous operation does not limit its transmission capacity and distance, while avoiding the effects caused by low frequency oscillations. And, in the event of a blackout, it won’t cause massive power outages either, reducing losses. The DC transmission system may withstand both normal working DC high voltage and polarity reversal voltage, so it is extremely necessary to conduct theoretical analysis of the DC cable terminal under polarity reversal voltage. This article simulates the distribution of the electric field at the reverse polarity voltage of a DC cable terminal and analyzes its law of variation. The results show that when the conductivity of the main insulation to the reinforced insulation is equal to its dielectric permittivity ratio, the build-up of space charges can be effectively inhibited and guide relevant studies.
DCMigrationALG: A Power-Aware Data Center Container Migration Algorithm
Authors: Zou Haodong , Feng Jia , Tang Ming , Wu Yu 
Published: August 2023

Abstract
In order to make full use of the power capacity of the data center when deploying servers in the data center, the deployment method of data center power over-provisioning is adopted. By using the hypothetical power capacity of the data center instead of the actual power capacity to deploy servers, we can deploy more servers to improve power utilization and space utilization. However, in some cases, when the servers under the same power supply component reach a higher power level at the same time, the real-time power of the power supply component will exceed the rated power, affecting service operation and causing heavy losses. In response to the above problems, we propose DCMigrationALG: a power-aware data center container migration algorithm. This algorithm uses container migration to migrate the containers under the power supply component to other power supply components, thereby reducing the real-time power of the power supply component and ensuring power security. We conduct experiments in a real computer room environment to prove the effectiveness of our algorithm.
Embedded Device Energy Consumption Prediction System based on Machine Learning Optimization
Authors: Zhang Lingxue 
Published: August 2023

Abstract
Accurately predicting the energy consumption of embedded devices has important implications for improving system performance and stability, resolving energy consumption anomalies and faults, and developing energy management strategies. In addition, it can promote the rational use of energy, reduce carbon emissions and environmental pollution, and achieve sustainable development. This article establishes an energy consumption prediction model for embedded devices using machine learning algorithms, and adopts a physical verification system to verify the accuracy of the prediction model for embedded devices. Firstly, divide the input and output samples obtained from CFD(Computational Fluid Dynamics, CFD) into training and testing sets, and use the SVM(Support Vector Machines, SVM) algorithm to train the training set to obtain an energy consumption prediction model. Then, the testing set is simulated and validated using the model. Finally, a related embedded hardware circuit system is designed to collect temperature, humidity, air conditioner voltage, and current data using sensor modules, and the energy consumption prediction model is validated using physical verification. The results showed that the relative error percentage between the energy consumption prediction model obtained through SVM and the simulation results was small. The percentage error between the actual energy consumption value and the predicted energy consumption value was also relatively small, verifying the feasibility of the research in this article.
Distributed Human Pose Estimation Based on BlazePose
Authors: Ming Tiancheng , Huan Guangjun , Yan Lixia , Lorenzini Guilo 
Published: August 2023

Abstract
The lightweight of human pose estimation model is one current research hotspot in the field of computer vision. The emphasis of current research is to promise lightweight model while improving the network performance. In view of computing and processing performance of monocular static image pose estimation method deployed in mobile devices, a distributed human pose estimation method was proposed. The distributed framework was constructed by simplifying BlazePose as the core, and the 5×5 convolution kernels were run for feature downsampling in a multi-thread simulated distributed environment. The computing power output of mobile devices was reduced by distributed simulation. Experimental results showed that the proposed model had 3%~11% performance improvement compared with other models in the simulation environment. Compared with the traditional human pose estimation model, the proposed model reconstructs the neural network deployment framework, thus indirectly enabling stable recognition of the deployed equipment under low computing power.
Driver Distracted Behavior Detection Using a Light Weight Model based on the W-MSA
Authors: Lyu Aihong 
Published: August 2023

Abstract
The percentage of traffic accidents caused by driver factors is about 90% in the world. Despite the great development of autonomous driving, it is still not completely self-driving. So, it is still not possible to avoid traffic accidents caused by drivers. Computer vision technology has made great progress with deep learning development. That makes it possible to detect the driver’s behaviour using a camera. To reduce the detection price, this paper presents a light weight model to detect the driver’s behavior based on the W-MSA. This model consists of 2 encoder modules and a classification module. And it used the Global Avgpool and W-MSA to reduce the model parameter and FLOPs. To avoid the low accuracy of the detection, this paper also used label smoothing regularization and CBAM technologies to improve the accuracy. This paper also used a visualization method to show the interpretability of the proposed model. The results show that the accuracy of the proposed model is 98% on the Kaggle driving test dataset. Compared to other state-of-the-art models, our method has a high accuracy with fewer model parameters.
Single-phase broken-line fault of a 10 kV ungrounded distribution Line
Authors: Shao Wenzheng , Liu Wenbin , Yang Jiakui , Zang Jiayi 
Published: August 2023

Abstract
In recent years, a great many applications of overhead insulated lines in distribution networks have reduced the occurrence of single-phase ground faults, and at the same time made broken-line faults a problem that cannot be ignored. Timely fault detection and fault location are of great help to reduce power outages and improve the quality of power supply for users. Aiming at the ungrounded system, this article designs a single-phase broken-line model, considers the influence of abort situation and others, analyses the fault characteristics such as sequence current and neutral point offset voltage, and then advances a fault model according to negative sequence current and neutral point offset voltage fault detection method. Lastly, the validity of the suggested way is confirmed by MTALAB.
Design of polarization direction detection circuit
Authors: Yang Zhiyong , Li Shun , Cai Wei , Luo Lina , Chen Dong 
Published: August 2023

Abstract
In the polarized light angle measurement system, it is important to detect the polarization direction of linearly polarized light. First, the principle of polarized light angle measurement is introduced, and then the polarization direction detection circuit is designed. This circuit receives the light intensity output signal from the Polarization State Analysis and converts it to an electrical signal. The electrical signal is filtered, amplified, sampled, and integrated to obtain a stable and useful electrical signal waveform. The polarization direction is judged by the waveform, which plays a role in the field of polarized light angle measurement and realizes accurate angle measurement. The simulation results show that the circuit can detect weak light signals and achieve 71.45 dB–97.95 dB adjustable gain. A stable and clear signal waveform can be obtained. The polarization direction can be determined by using the waveform. The circuit has a simple structure, good stability, and easy realization.
A Novel Co-phase Traction Power Supply System in Electrified Railway
Authors: Cui Guiping , Jia Lei , Qu Xing 
Published: August 2023

Abstract
The electrified railway has power quality problems such as three phases seriously unbalanced, large harmonics, and reactive power. In addition, the neutral section exists at each power supply section, which restricts the development of the high-speed and heavy-haul railway. This paper proposes a novel co-phase traction power supply system (TPSS) based on a YNvd balanced transformer, which can not only solve the above problems but also save one single-phase coupling step-down transformer, thus reducing the cost and space of the whole system. In addition, the voltage level of the converter switching device can be reduced by the rational design of the transformer tap position, which enhances the reliability and feasibility of the system. The compensation principle and control strategy of the co-phase TPSS based on the novel YNvd balanced transformer are analyzed in detail in this paper, and the compensation current detection and integrated power flow controller (IPFC) control methods are given. Simulation and analysis show that the proposed topology structure and control method are correct and feasible.
Modeling Calculation and Influencing Factors of Geomagnetically Induced Current in Sanhua Power Grid
Authors: Chen Zan-ming , Liu Chun-ming , Li An-qi , Yan Yue 
Published: August 2023

Abstract
The time-varying magnetic field of a magnetic storm induces an electric field in the earth, which generates geomagnetically induced currents (GIC) when it acts on the power grid and has many hazards to the power system. In this paper, we model and calculate the ground-induced electric field and geomagnetically induced currents for 20 magnetic storms from 2008 to 2018, and investigate the effects of two factors, magnetic storm strength, and earth conductivity, on the geomagnetically induced currents, which are important for the prevention and control of GIC in large-scale power grids in low- and mid-latitude regions.
Analysis and Evaluation of Bearing Capacity of Distributed Photovoltaic Connected to Hunan Power Grid
Authors: Wang Ding , Xu Ming , Cao Wei , Hao Luxi , Chen Lingyi , Ning Zhihao 
Published: August 2023

Abstract
The development of distributed power in Hunan Province is mainly photovoltaic, with an average annual growth rate of 16.4% in the past five years. By the end of October 2022, Hunan’s distributed photovoltaic installed capacity is 3.06 million kilowatts, accounting for 54.6% of the total photovoltaic installed capacity, which exceeds the centralized photovoltaic installed capacity. Due to the rapid large-scale development of distributed photovoltaics, it is common that the actual operation scale exceeds the contemporaneous planning. In addition, Hunan distributed photovoltaic access is concentrated in northern and southern Hunan, while in southern Hunan, due to a large number of local clean energy, a large number of distributed photovoltaic access will increase the output of terminal power supply, which can seriously cause the grid power flow to reverse. This paper takes the power grid topology in southern Hunan as an example of carrying out the bearing capacity assessment of regional distributed photovoltaic access to the power grid. This method guides the rational layout of distributed photovoltaics and stably ensures the operation of the Hunan power grid.
Software and hardware design of microcomputer relay protection device based on DSP
Authors: Huo Jingchong , Meng Runquan , Li Shengwen , Liu Qiang 
Published: August 2023

Abstract
The research on fault protection technology of AC power grid in AC/DC hybrid microgrid is very mature, while the research on fault protection technology of DC microgrid is still in the development stage. Therefore, the research and development of necessary power electronics and protection devices have become a research hotspot in recent years. In this paper, a microcomputer protection device based on the TMS320F28335 chip is developed. Considering the anti-interference of field use, detailed hardware and software design is carried out. The debugging effect is good, and the low-voltage DC short-circuit fault protection function can be reliably realized.
Gas Production Characteristics of UHV Oil immersed Shunt Reactor with Vibration Defects
Authors: Gu Zhaoliang , Zhu Wenbing , Zhu Mengzhao , Li Longlong , Zhu Qingdong , Wang Jian , Wang Haozhe 
Published: August 2023

Abstract
The special multi-air gap structure of Ultra high voltage (UHV) oil-immersed shunt reactor determines that its magnetic leakage is far greater than that of a power transformer of the same voltage level, and it is more prone to vibration and other problems. Overheating and suspended discharge caused by vibration are important sources of excessive gas production in UHV shunt reactors. In this paper, the source of gas production under reactor vibration is analyzed, and a reactor defect simulation gas production platform is built. Using oil chromatography analysis, partial discharge detection, and other means, the gas production characteristics, discharge characteristics and insulation degradation characteristics of typical defects such as suspended discharge and partial overheating under vibration have been experimentally studied. Then, the correlation analysis model between the vibration type, intensity, overheating degree, and the reactor performance change was established. Finally, the gas production and discharge characteristics of the reactor under different defect types were obtained. Besides, gas production characteristics under vibration with 50 Hz, 100 Hz, and 150 Hz were carried out, and it was found that the gas will continue to increase with the increase of vibration frequency, and the growth has been stabilized after exceeding 100 Hz. The relevant research results of this paper can provide technical support for the application of UHV oil-immersed shunt reactor state assessment and diagnosis, and improve the level of equipment operation and maintenance.
Multi-load short-term prediction of an integrated energy system based on GAN-LSTM
Authors: Su Junni , Chen Fengchao , Qiu Zejian , Zhong Zhiming , Zheng Huifang , Zheng Hua 
Published: August 2023

Abstract
An integrated energy system’s load consists of diverse forms, including electric load, cooling load, heat load, and more. Due to its strong randomness and volatility, traditional load forecasting methods are not suitable for the integrated energy system. To address the issue of short-term forecasting for multiple loads of the integrated energy system, the proposed paper utilizes generating adversarial networks (GAN). The proposed method analyzes the characteristics of comprehensive energy multi-load and combines meteorological factors with multi-load historical data to form the input dataset for the prediction model. To further improve the accuracy of the short-term forecasting of comprehensive energy multiple loads, the model employs a generator and a discriminator constructed based on the cyclic neural network of long- and short-term memory (LSTM). The example results demonstrate that the proposed method is effective in predicting multiple loads, with significantly better accuracy than traditional methods.
Equivalence analysis of acoustic excitation and random vibration exerted on spacecraft units
Authors: Zhang Jie , Wang Yakun , Wu Pengfei 
Published: August 2023

Abstract
At the unit level test, the small area-to-mass ratio unit of spacecraft generally adopts the random vibration test to simulate the acoustic environment during the launch event. Acoustic excitation and random vibration exerted on spacecraft units reflect different dynamic characteristics. Thus, the equivalence analysis between them deserves to be conducted. In this work, a thruster outside the spacecraft was taken as an example, for it directly experiences acoustic load compared with the electronic equipment inside. The vibroacoustic and random vibration models of the thruster were established, and response behavior was explored. Results show that there are differences in the response distribution rules of acoustic load and random vibration on the thruster. The farther to the thruster root is, the harder acoustic vibration responses can be covered by the random response, so an appropriate safety margin shall be reserved when formulating random vibration conditions of units.
A Novel Testing Method for the Radiometric Responsivity of Satellite Cameras
Authors: Yang Hongming , Chen Feng , Nan Qian 
Published: August 2023

Abstract
To solve the problems of harsh test conditions and the complex process of visible imaging satellite cameras, a testing method suitable for conducting at the launch site was proposed to address the limitations of the original test design. The method is highly efficient and accurate enough in evaluating the radiometric responsivity of satellite cameras, with the advantages of fully controllable test conditions, convenience, and high accuracy. Using a certain type of optical satellite as an example, the proposed method is used to test the radiometric responsivity of satellite cameras and compare the results with those obtained by the traditional integrating sphere testing method to verify the validity and reliability of the testing method.
Multifunctional Aviation Warning Ball with Four Split Conductors
Authors: Zhou Anqi 
Published: August 2023

Abstract
In this paper, the application scenario of the existing single-conductor installation aviation warning ball does not meet the needs of two major research backgrounds, the development of the aviation industry and the transmission wire anti-dance in the electrical system. The four-division aviation warning ball can meet more application scenarios. The design of the aviation warning ball adopts the design idea of combining a spacer bar, anti-dance device, night light device, and ball shell as the whole product to realize the functional integration of night warning and anti-dance function. This paper focuses on the connection mode of the designed new aviation warning ball. It verifies the strength of the key bearing parts in the structure to ensure the feasibility of the design structure.
Analysis of Aerodynamic Characteristics of Different Tail Configurations of Compound High-speed Helicopters
Authors: Yu Hao , Li Jingyang , Baoyin Hexi 
Published: August 2023

Abstract
When a compound high-speed helicopter is in forward flight, there are serious aerodynamic disturbances among the fuselage components, among which the tail configuration has a greater influence on its aerodynamic performance. To study the influence of different tail configurations on aerodynamic performance, the flow field of a compound high-speed helicopter in forward flight was numerically simulated based on the commercial software XFlow. Firstly, the ROBIN standard helicopter fuselage model was calculated to verify the scientific validity of the method. Then, the aerodynamic data of a high-speed helicopter was analyzed for different tail configurations in forward flight with different angles of attack and yaw. The results show that the V-tail configuration has the lowest lift and resistance coefficients and the best longitudinal manoeuvrability and stall characteristics; the conventional tail configuration has the highest lift-to-resistance ratio and the fastest wake decay; the lateral stability of the V-tail and conventional tail configurations is weaker than that of the H-tail and fixed tail configurations; and the presence of the vertical tail in the tail increases the pressure value around the wing surface.
Modeling and Simulation Evaluation of Seaplane Porpoising
Authors: Liu Jing , Tian Fuli 
Published: August 2023

Abstract
During the take-off of the seaplane on the water surface, one of the most dangerous situations is the uncontrollable porpoising of the seaplane. The coupling effect of the buoyancy, hydrodynamic resistance, hydrodynamic lift, and aerodynamic force of the seaplane is studied to better meet the requirements for porpoising in airworthiness clauses. In this study, we established the dynamics model of seaplane motions on the water surface and proposed a method for the simulation evaluation of seaplane porpoising. The program for simulating seaplane planning on the water surface was developed. Through simulation, we evaluated the possibility of porpoising when a seaplane plane is on the water surface and obtained the pitch attitude boundary of seaplane porpoising. The evaluation method can be adopted to develop procedures for seaplane take-off control and for risk identification and control in seaplane take-off test flights on the water surface.
Spare parts scheme for electronic equipment system with limited resources
Authors: Liu Shuren , Shen Bo , Li Wenzhao , Yin Zimeng , Liu Qingqi 
Published: August 2023

Abstract
With the increase of the number of modern equipment, the expansion of equipment scale, and the requirements of actual combat equipment for long-term standby duty, the role and significance of spare parts support scheme in the life cycle of equipment system gradually become prominent. Taking the electronic equipment system as the research object, this paper analyzes the relative changes between the spare utilization rate and the spare fill rate under different system composition scales. It introduces the strategy of using faulty parts as spare parts after maintenance under the condition of considering limited spare parts resources. It analyzes the spare parts scheme of electronic equipment systems under the premise of satisfying the constraints of spare parts resources.