bluuebunny/crossref_metadata_2025_split huggingface dataset:
Particle Swarm Optimization Algorithm in Improved Electrical Control System
Authors: Tian Xiaotao 
Published: November 2021

Abstract
In today’s social background where high-tech emerges endlessly, various production fields in our country have fully entered the era of mechanical automation and electrical automation, and electrical control systems have been widely used in our country’s electrical appliance manufacturing industry. This paper is based on the theoretical analysis of the particle swarm optimization algorithm. Based on this optimization algorithm, a brand-new particle swarm optimization algorithm is obtained. It is applied to the electrical control system to improve it and makes full use of the improved particle swarm optimization algorithm. The existing electrical control system is optimized. This article firstly analyzes the types of common electrical control systems, puts forward some basic methods to improve the control system, and then explains the effective techniques for improvement, hoping to make reference to the improvement of electrical control systems later in this article. This article first improves the particle swarm optimization algorithm, adding the ability to adjust the control system and dynamic learning factors, focusing on strengthening the later stage of the optimization of the particle swarm algorithm and the ability to converge to improve the efficiency of the calculation. The second is to improve the traditional particle swarm optimization algorithm and update the calculation method of the formula to reduce the possibility of selecting undesirable particles and affecting the optimization results. Finally, through MATLAB and reverse simulation analysis, compared with the traditional electrical control system algorithm, the improved particle swarm optimization algorithm has a faster convergence speed and high control system efficiency. The experimental research results show that the particle swarm optimization algorithm proposed in this paper has a huge advantage compared with other algorithms, and its parameter optimization gives full play to the powerful performance of the electrical control system.
Test Method of Communication Protocol of Standard Group Components of Electric Vehicle Charging Equipment
Authors: Bai Yao , Tang Panpan , Zhang Jing , Zhang Jialin 
Published: November 2021

Abstract
In recent years, the rapid development of the electric vehicle industry has made the research on the communication protocol detection of the standard components of its charging equipment more and more important. The consistency of the charging communication determines whether the charging process can be carried out normally. During the charging process, the inconsistent communication messages of the standard components will directly lead to the failure of the charging process of the electric vehicle charging equipment. The purpose of this article is to study the communication protocol test method of the standard set of electric vehicle charging equipment. This article first analyzes the whole process of DC charging of electric vehicle charging equipment, and determines the detection method combining positive detection and negative detection according to the various stages of communication, and explains it. Then analyze and study the consistency of the communication protocol of the electric vehicle charging equipment standard group components, and determine the test indicators used to test and evaluate the DC charging communication consistency of the electric vehicle charging equipment. Finally, according to the analysis and research on the consistency of DC charging communication of electric vehicle charging equipment, a test plan for testing the consistency of communication is determined. The experimental data shows that the leakage current limit set in the experiment is 30mA, and the maximum error in the actual measurement is 1.1mA. The test results show that the controller on the cable can provide protection in case of leakage, and the measurement error is less than ±5mA.
Research on Real-Time System and Related Graph Task Model
Authors: Xiao Juan , Wang Song , Duan Sheng , Li Shanglin 
Published: November 2021

Abstract
Generally speaking, real-time system is considered to be able to influence the environment by receiving and processing data, and returning calculation results rapid enough, so as to control the environment. In computer science, real-time system describes the software and hardware system affected by time constraints, and its correctness relies on the logical correctness of the function and the time when the result is generated. According to the main characteristics of real-time operating system, such as time constraint, predictability and reliability, it puts forward higher requirements for the time accuracy and reliability of real-time operating system. This paper first introduces the real-time system from its main characteristics, related concepts and scheduling algorithm. Then five classical graph based task models of real-time system are introduced. Finally, this paper introduces the directed graph realtime task model from two aspects of definition and semantics. As an extension of realtime system task model, directed graph real-time task model is considered to be able to provide real-time systems with stronger expressive power and support the formal study of time constraint problems.
Research on Security Communication Technology of Internet of Vehicles Based on 5G Technology
Authors: Xiong Shaojun 
Published: November 2021

Abstract
With the improvement of the economic level and the development of infrastructure, the use of automobiles as a mode of transportation has become more and more common, and the number of cars has continued to grow. Based on this background, the rapid development of intelligent and networked automotive network communication technology, the birth of the Internet of Vehicles technology, has promoted the transformation of the automotive industry. This article gives the corresponding security requirements based on the security risks of IoV communication, briefly introduces the basic methods to realize the security of IoV communication, and proposes the service architecture, PKI architecture and multi-PKI system mutual trust mechanism to realize the security of IoV communication based on this.
Research on the Properties of Lattice-Valued Finite State Machines in Computer Technology
Authors: Hu Zhonggang 
Published: November 2021

Abstract
In this paper, we discuss some algebraic properties of Lattice valued finite state machine and prove that if there are homomorphic mapping satisfying certain conditions between two Lattice valued finite state machines, the first one is strongly connected (cycle), then then the second one is the same. And if the homomorphism is strongly homomorphic, one of the Lattice valued finite state machines is complete if and only if another Lattice valued finite state machine is complete. Discuss the completeness, strong connectivity, circulation and exchange capacity between the product of a Lattice valued finite state machine and the original Lattice valued finite state machine and get some results.
Music Network Data Analysis Based on ISOMAP Algorithm Model
Authors: Zhong Kai , Liu Shangqian , Li Yue , Xu Yanling 
Published: November 2021

Abstract
The development of music is a tortuous process, and the network relationship between each genre and each artist is intricate. In order to have a better understanding of the history of music, this paper tells the stories hidden in the history of music by means of data processing. Firstly, this paper establishes a model to evaluate the similarity between music by using ISOMAP algorithm. At the same time, the forest evolution model was established to mark the most revolutionary musical characters. Finally, using the Page-Rank algorithm, we get the founders of several music genres. It turns out that the figures who led the development of music don’t coincide with the figures who revolutionized music. Through the analysis of this paper, we can more clearly understand the development of music and the evolution of genres.
Application of Intelligent Art Design Technology Based on MBD
Authors: Cheng Weizong , Liu Yanlan 
Published: November 2021

Abstract
Contemporary public art needs to be carefully designed with its unique advantages to achieve its wider diversity, participation and interaction. Based on the MBD process model, the basic process description and evaluation method of process design features are established. Based on the model definition, the key equipment information of process design is the initial data of process optimization. The process design and optimization are realized. It provides an application method based on full 3D model for art design and optimization. An application example of process design is established. Combined with the actual demonstration of MBD, the design optimization process model is an important guarantee for process design. The results show that the distribution of intelligent hardware users in South China accounts for 34.9%, and that in Central China accounts for at least 16.9%.
Internet-assisted English Teaching in Higher Vocational Education
Authors: Niu Xiaowei 
Published: November 2021

Abstract
The rapid development of information technology has brought opportunities and challenges to English teaching. Online teaching has become a trend in language teaching, and it is also the core of the ongoing reform of English teaching. It not only changes the traditional English classroom thinking and teaching methods, but also changes the students’ learning environment and learning methods. At present, many experts and scholars at home and abroad have conducted research on the teaching activities of English network. Researchers have also put in a lot of effort and research to study how to use online platforms to help teach English. This article focuses on the study of multimedia-assisted English teaching in higher vocational education based on the Internet. First, it uses the literature research method to explain the problems in multimedia-assisted English teaching in higher vocational education, then puts forward some relevant suggestions for improvement, and finally uses the questionnaire method to analyze the multimedia A survey on the status quo of English teaching in higher vocational colleges was conducted. The results of the survey showed that the multimedia construction in schools is still good at this stage. Among them, computer equipment accounts for the most, reaching about 39%, and then the slide projector, accounting for about 32%. Regarding whether multimedia teaching can replace traditional teaching, 55% of teachers think that it can be partially replaced, and 31% of teachers think that the two should be combined.
The Design of English Personalized Teaching Platform in Campus Network Based on Big Data
Authors: Shao Changhong 
Published: November 2021

Abstract
With the emergence of technologies such as cloud computing, the Internet of Things(IOT), and educational big data (BD), personalized teaching (PT) has got more technical support. This article aims to explore how to apply emerging technologies to the teaching process, help teachers to carry out PT, stimulate students’ interest in learning, meet students’ individual needs, and break through traditional teaching methods. Through examining and collating a large number of literatures such as education BD and English PT platform, this paper analyses the status quo and needs, and builds a platform based on BD on this basis. The personalized English teaching platform in the campus network is used in practical teaching, and the effect of this platform in practical teaching is tested by comparative analysis. The results show that the English PT platform has realized PT well, enhanced the pertinence and initiative of students’ learning, and improved students’ comprehensive ability.
Experimental Discussion on Fire Image Recognition Based on Feature Extraction
Authors: Cui Yongyi , Qu Fang 
Published: November 2021

Abstract
Video image-based fire detection technology can overcome some shortcomings of traditional fire detection, and has a good development prospect. This paper summarizes the basic principles of image-based fire detection, and analyzes the main features of fire combustion images. According to these features, firstly, the interframe difference method and the watershed algorithm are used to extract the suspected fire image area which may occur. Then, the features of flame image in early fire stage, such as increasing flame area, fluttering edge, irregular shape and flame color, are used as fire recognition criteria. Meanwhile, various image processing technologies and algorithms are used to extract the four main features of the fire, so as to eliminate various sources of interference and further determine whether a fire has occurred. Finally, a variety of different fuels were selected under indoor conditions to simulate fire experiments under different conditions, and the video was recorded. Fire recognition experiments were carried out using experimental videos and some videos found on the Internet. The experimental results show that the extraction and further recognition of suspected fire areas are both effective. However, the experimental simulation environment is relatively simple, and many theoretical and practical problems need to be further studied and solved.
Research on a Robust Backstepping Attitude Controller for Multi-rotor Plant Protection UAV
Authors: Liu Yunling , Ma Yan 
Published: November 2021

Abstract
The plant protection UAV is an important application equipment for precision spraying technology. However, in the process of spraying, the change of its own load will lead to the decline of control performance and disturbance rejection ability. In order to improve the control performance of the plant protection UAV, the application research of robust backstepping control strategy is carried out, and the Robust Backstepping Attitude Controller (RBAC) is designed to force the quadrotor to follow the desired attitude. Through simulation experiments, the control effect of RBAC and the Backstepping Terminal Sliding Mode Controller (BTSMC) in the literature are compared and analysed. The simulation results show that: RBAC can improve the dynamic performance of the system. The average settling time of the system is shortened by 404.663ms, which is 24.85% faster than that of the BTSMC system. Simultaneously, the system is insensitive to external unknown disturbance and has strong robustness.
Control Strategy of Pipeline Robot
Authors: Li Qian , Fang Yongyi , Liu Baoan , Xing Kun , Wang Lijun , Qian Hengjian 
Published: November 2021

Abstract
The detection of pipeline in service is very important, but the existing manual detection has blind spots, long cycle, high risk, low precision and high cost. Therefore, it is very important to develop a mobile detection robot to replace manual inspection. This paper mainly introduces the control strategy of pipeline robot. In this paper, the overall control structure of the pipeline robot system is built, including the design of hardware framework and the design of software implementation process. Hardware design includes the selection design of microcontroller ARM, sensor, motor driver and so on. The software design is mainly the process design of action realization and the frame design of man-machine interactive operation panel structure. After the system construction is completed, the motion control experiment of the pipeline robot control system is carried out to test the walking performance of the pipeline robot prototype in the vertical variable diameter pipeline, and the motion control experiment is carried out to verify the rationality of the mechanical structure of the pipeline robot and the practicability of the control system.
The Application of Satellite Navigation System in Deformation Monitoring
Authors: Lu ChangPing 
Published: November 2021

Abstract
Global satellite navigation system has become one of the top technical means in the world. The use of satellite navigation in many fields, such as deformation measurement, civil navigation, search resources, geodetic survey, auxiliary precision engineering monitoring and so on, can play its high precision positioning, all-weather monitoring and other technical characteristics. At the same time, satellite navigation system is combined with modern information technology. Internet technology and so on, which realizes the automatic collection, transmission, processing and analysis of safety monitoring data, and the application efficiency is maximized. The present situation and application of satellite navigation system to monitor the deformation of high-rise buildings are studied in this paper. Nowadays, more and more high-rise buildings in the world have sprung up like bamboo shoots. Therefore, how to realize the satellite navigation system to carry on the all-weather, the high precision, the high efficiency monitoring to the high-rise building, carries on the diagnosis to the dangerous signal in time, timely carries on the forecast to the future possible danger and the timely stop loss, this has the very important realistic significance. By reading the literature, the paper expounds the concepts of satellite navigation system, satellite navigation system and Internet technology in detail. The paper mainly takes the high-rise building scaffold as the object of deformation monitoring, and expounds the advantages and reliability of GPS as high-tech for deformation monitoring of high-rise buildings. Finally, through experimental design, the recognition of GPS technology by comparative method reflects the inestimable position of satellite navigation technology.
A Method of Single-terminal MMC Single-pole Grounding Protection for DC Distribution Network Based on Multi-class Similarity Analysis
Authors: Zhang Wei , Cao YaFei , Fan YuanChun 
Published: November 2021

Abstract
Based on the analysis model of single-pole to ground fault occurred in single-ended MMC DC distribution network, the characteristics of single-pole to ground fault are studied. The similarity of positive and negative current between the fault feeder and the non-fault feeder, the similarity of fault current between the fault feeder and the non-fault feeder, and the similarity of positive and negative current sum between the two feeders are analyzed. Based on the differences among the three types of similarity, a new method of single-pole grounding protection for DC distribution network with MMC based on multi-type similarity analysis is proposed. The simulation results show that this method can accurately determine the fault feeder, and has the characteristics of strong anti-interference ability, simple calculation and easy implementation. It can effectively solve the problem of single-pole grounding protection of DC distribution network and effectively improve the safety and reliability of power supply of DC distribution network.
Influence of the beam oscillation parameters on the porosity of electron beam freeform fabricated titanium alloy SPT-2
Authors: Gudenko A V , Sliva A P , Shishkin D V 
Published: November 2021

Abstract
The effect of electron beam oscillation on the formation of metal during electron beam freeform fabrication has received practically no attention. Nevertheless, it is a variable technological tool that allows to significantly influence the formation of metal during EBFFF process, including the probability of defects formation. The effect of the focus current, the form, and the frequency of the beam oscillation on the formation of pores in single beads by method of electron beam freeform fabrication of the titanium alloy SPT-2 on the substrate of the alloy VT6 was investigated. The porosity of the obtained beads was studied using x-ray images. It was found that too deep an arrangement of the focal plane relative to the substrate surface leads to excessive pore formation. Reducing the oscillation frequency from 1000 Hz to 100 Hz made it possible to completely get rid of the pores in the metal. The use of a spiral-shaped oscillation made it possible to reduce the probability of pore formation in comparison with an oscillation in the form of concentric circles.
Investigation of the thermal state of the elements of a technological electron beam gun under long–term operating conditions
Authors: Kharitonov I A , Goncharov A L , Titarev E K , Nekhoroshev A V 
Published: November 2021

Abstract
The paper presents the results of a study of the thermal state of the elements of the cathode assembly of the ELA–15 welding electron gun. It was revealed that in short–term operating modes of the gun (up to 60 minutes) at any energy parameters of heating the hexaboride cathode, it is possible not to use forced cooling of the cathode assembly. The case temperature in such modes did not exceed 30°C. The increase in the temperature of the gun body occurred 15 minutes after the start of heating the cathode. In long–term operating modes with forced cooling of the gun, the temperature of the gun body increased by 2 – 3°C and remained stable throughout the operation. When the cooling was turned off, the temperature of the gun body reached a critical value in 60 minutes. The section of natural cooling of the cathode obtained in the work, which appears when the heating of the cathode is stopped, is well approximated by a power function. It is convenient to use this dependence to verify the mathematical model of the thermal state of the electron gun.
Investigation of the phase composition and mechanical characteristics of laser welded joints of aluminum-lithium alloys
Authors: Malikov A G , Ancharov A.I. 
Published: November 2021

Abstract
A study of laser welding of modern aluminum-lithium alloys has been carried out. Optimization of post heat treatment of laser welded joints has been carried out. The change in the structural-phase composition of welded joints was investigated. The strength of welded joints after heat treatment was equal to the strength of the base alloy.
Application of Random Region Augmentation Algorithm in Deep Learning
Authors: Chen Tao , Lu Hongying , Xiao Sihe 
Published: November 2021

Abstract
In the field of computer vision, the collection and sorting of image data is the core driving force. However, the current data collection work cannot perfectly collect the image data of each actual landing scene. The purpose of the data augmentation algorithm is to increase the diversity of the data set and improve the robustness of the model. Traditional data augmentation methods include geometric augmentation and color augmentation, mainly including flipping, rotating, cropping, translation, stretching, zooming, adding noise, blurring, Dropout, Cutout, color jittering. Traditional data augmentation methods have certain limitations, and the effect is not obvious. Based on the idea of Cutout algorithm, this paper proposes the RRA augmentation algorithm, which divides four quadrant regions in the image, and randomly selects the ROI region in each region, and is different from the Cutout algorithm directly discarding the region, but randomizing the region Enhance the color, and finally do geometric augmentation processing on the overall image. Compared with the original single data augmentation operation, the algorithm improves precision by 7%, and recall improves by 7%.