bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detection of Abnormal Hot Spots Infrared Images of Power Equipment Based on YOLOv4
Authors: Qi Xiao , Shi Lei , Li Lei , Chai Fangsen , Han Dongxu , Zhang Chong 
Published: August 2021

Abstract
The stable operation of power equipment is very important to ensure the stability of power grid. In this paper, an object detection model is designed for detection of the abnormal hot spots of electrical equipment. In order to improve the performance of the object detection model, data augmentation of image is applied to extending the training set. The test results show that the model based on YOLOv4 can identify and locate the abnormal heating fault point in the infrared image with high accuracy. The precision and recall rate of the object detection model on test set can reach 88.51% and 91.66% respectively.
Energy and economic evaluation of Gas-electric hybrid energy system based on improved genetic algorithm
Authors: Ce Liang , Yinke Dou , Yuchen Wang 
Published: August 2021

Abstract
In the future when there are more and more new energy sources in the grid, the Power-to-Gas(P2G) interconnected operation network will be affected by new external energy sources, resulting in an imbalance between the generated power and the actual power required for the normal operation of the grid. On the one hand, the application of P2G technology can guide the further integration of the power system and the natural gas system. The power-to-gas balance grid based on water electrolysis is a promising solution, which can effectively reduce the uncertainty of the system dispatching plan. On the other hand, the physical properties of natural gas determine that it can provide a method for the consumption of excess electricity. This paper proposes a peak load shifting calculation model based on an improved genetic algorithm, which smoothes the net load curve of the Gas-electric hybrid energy system through the coordination of P2G and gas-fired generators. The test example used in the algorithm adopts the modified IEEE39-node power network and the coupling system of the Belgian 20-node natural gas system to analyze the static load fluctuations of the system operation under various conditions. It is verified that the power-to-gas conversion and the algorithm researched in this paper can effectively smooth the net load fluctuation and improve the system's new energy absorption capacity.
The capacitance tomography image reconstruction algorithm based on sensitivity field sensitivity matrix
Authors: Xinxin JIA , Xu CHAI , Lei WANG , Hao ZHANG , Xiangchun LI , Liya DUAN , Xiaoling SUN 
Published: August 2021

Abstract
Successful applications of ECT technology depend on the speed and precision of the image reconstruction algorithms. The image reconstruction for electrical capacitance tomography (ECT) is an inherently nonlinear and ill-posed inverse problem. To solve the problems, in this paper 12-electrode ECT system was set up to acquire real measurement capacitances under capacitance tomography that based on sensitivity field sensitivity matrix, which is T-LBP. In this paper four typical flow patterns are simulated, such as laminar flow, core flow, annular flow and bubbly flow, which in a circular section pipe. The simulation data indicate that the quality and the error, which was obtained in this paper, of the reconstructed images were better than the corresponding images obtained by the LBP and the Landweber algorithm. This new algorithm presents a feasible and effective way to research on image reconstruction algorithm for the industrial applications of Electrical Capacitance Tomography System.
Construction of 3D Scene of Transmission Line Corridor Based on GIM and 3D GIS
Authors: Zhao Ping , Yang Wanyun , Feng Yuwei , Li Fangfang , Huang Xueqiang 
Published: August 2021

Abstract
Transmission lines have the characteristics of strip distribution, wide coverage, and close connection with the actual geographical environment. The traditional transmission line modeling method has the defects of insufficient spatial positioning ability and weak information expression ability. Therefore, in this paper, three-dimensional geographic information system (3D GIS) and grid information model (GIM) are coordinated to make the two complementary advantages and construct the three-dimensional scene of transmission line corridor. First, The visible light images and high-precision laser point cloud data of transmission line corridor are collected by helicopter, and extract power lines and towers from the laser point cloud data. Then, the oblique photogrammetric model of large-scale scene is made from visible light images and modified. Finally, according to the point cloud of power line and tower, the improved template matching method is used to realize the rapid modeling of transmission line GIM model, and the transmission line model is obtained. A complete 3D digital twin scene model of transmission line corridor is formed by fusing scene model and transmission line model. The research results show that the 3D scene construction method of transmission line corridor based on 3D GIS and GIM not only improves the efficiency of transmission line modeling, but also has a good visual effect. The abundant line information is helpful for the visual operation and maintenance management of existing transmission lines from macro to micro, which provides data support for the construction of digital power grid.
Design of Three-Dimensional Gesture Recognition and Motion Tracking Human-Computer Intelligent Interaction System based on PAJ7620
Authors: Jian-liang WANG , Ye WEI , Yang LI , Yuan MENG , Ming-yu LI , Jiang-yan XU , Wan-ming JIAO , Lan BAN , Jun-pei LIU , Hong-feng ZHANG , Wei ZHANG , Li-na WANG , Fu-chen LUO , Yu-duo WANG 
Published: August 2021

Abstract
With the increasing degree of informatization and intelligence in modern society, human-computer interaction technology has become one of the commonly used scientific and technological achievements. “Gesture” can be used as inputing image information, and make more intuitive and convenient for perception of user interface. To a certain extent, it can complete the intelligent interaction function between human and computer. The design is a human-computer intelligent interaction system for 3D gesture recognition and motion tracking based on gesture sensor PAJ7620. STM32 chip is used as the main control unit to recognize accurately, analyze and process different gestures collected by the gesture sensor, and control the OLED screen to display the gesture information. It can further drive the carrier to take corresponding actions and realize the intelligent human-computer interaction recognition of gestures. The experimental test results show that the recognition rate is lose to 100% when the distance is within 10cm.
Simulation of multiple unmanned aerial vehicles for compensatory pollination in facility agriculture
Authors: Fan Hao , Yang Minsheng , Wang Ruyi , Wang Xiujuan , Yue Xun 
Published: August 2021

Abstract
In order to enhance the economic benefits of fruit and vegetable cash crop facilities for agriculture, precise stereotactic of compensatory pollination technology in effective pollination period, is the effectively improve the fruit setting rate and the economic benefits of crop. The effects of honeybee pollination on the flowering can provide theoretical support for crop yield and ecological security. However, manual spraying of compensatory pollination technology is high, the working efficiency is low, and the control strategies based on single multiple UAV faces great challenges, which are the effects of flight heights on the droplet deposition and distribution. In this paper, firstly, flow chart of multiple unmanned aerial vehicles in facility agriculture for precise stereotactic of compensatory pollination method is given. Then, the thermogenesis and precise detection of the flower tissues is studied. Last, simulation of 16 UAVs and the effectiveness of the theoretical results is given in Matlab environment. Time varying formation control, formation tracking control of UAVs in facility agriculture, which based on precise stereotactic of compensatory pollination technology, provides a feasible solution scheme for ecological unmanned farm.
Study on Intelligent Meteorological Service of Facility Agriculture Based on Cloud Edge
Authors: Zhangyan Le , Wu Ren , Minghua Shi , Xueying Geng , Qucheng Wei 
Published: August 2021

Abstract
Facility agriculture is an important means of controlling agricultural production environment through engineering technology. However its development cannot be separated from the influence of meteorological elements inside and outside the facilities. This study will improve the level of intelligent meteorological service in facility agriculture and promote rural revitalization. We investigated the current situation of intelligent meteorological service of facility agriculture in Hebei Province and the meteorological observation data in shed. We proposed an application model of cloud edge intelligent weather service based on the digitization, standardization and intelligence of facility agriculture. We independently designed low-cost intelligent nodes. They collect data automatically. The data can be transferred to the cloud for storage and analysis. The cloud displays data in real time. We can stereoscopic monitoring of the distribution points according to the actual situation of the facility greenhouses. These enable accurate data on greenhouse and crop management and planting management. We can model and analyze data at different scales in the cloud. These build the data cube. We can build platforms with different costs through cloud edge synergy. Its advantages are controllable cost and flexible customization. They also allow devices to connect through the cloud. These ultimately achieve intelligent meteorological services for agriculture facilities. We have already carried out preliminary application of the strawberry shed and mochella shed in the Zhaofeng Agricultural Park in Langfang City. Farmers' economic benefits have increased significantly. The economic income per shed increases by $1,600. The results of this study were recognized by the farmers in Hebei province.
Construction and Application of Intelligent Agricultural Greenhouse Irrigation System
Authors: Liu Hong , Li Qing 
Published: August 2021

Abstract
In the environment of scientific and technological progress and the wide application of intelligent agriculture, the project designs and implements an intelligent agricultural greenhouse irrigation system based on MCU, which makes the greenhouse planting of crops more convenient and reasonable The main modules of the irrigation system are soil moisture detection module, liquid crystal display module, timer module, MCU control module and watering module. The system detects the soil humidity through the humidity sensor, displays the humidity on the LCD, and drives the watering module to work through the single chip microcomputer control module. The function of timer is to control the watering time and water consumption, and intelligently complete the automatic work of agricultural greenhouse irrigation system. Through this system design, the application of SCM in various fields can be expanded. It makes the irrigation of agricultural greenhouse intelligent. It provides a solid foundation for the construction of green agriculture.
Design and development of locust monitoring system
Authors: Tan Minghao , Zheng Yubin , Chen Mingtao , Ji Jing , Li Weihua 
Published: August 2021

Abstract
Effective monitoring and early warning of locusts which are one of the main harmful insects in agriculture are the key to protecting farmland ecology. However, due to the large area of farmland, sparsely populated population, inconvenient transportation, network connectivity and other factors, coupled with the locust's own characteristics such as outbreak, migration, and occurrence uncertainty, the task of locust control is very difficult. Traditional survey techniques are far from being able to meet the requirements for real-time monitoring and precise forecasting of the occurrence of locusts. Therefore, this article provides a set of IoT solutions for locust situation monitoring in the context of the Internet of Everything.
Development of the Real-Time Monitoring System for Analysing the Aquatic Epidemics Tendency
Authors: Li Ning , Hu Jing , Cheng JinXiang , Sun YingZe 
Published: August 2021

Abstract
Under the rapid development of globalization, the prevention and treatment of aquatic epidemics has caused widespread concern due to international trade exchanges frequently. Although the epidemic disease information is gathered and published by World Organization for Animal Health (OIE) in regular, some vital characteristics of such disease are not able to obtain directly. Therefore, this technical paper designs a real-time monitoring system jointed Geographic Information System (GIS) and view tables, which aims to help managers or scholars to analyse the aquatic epidemics tendency between the different species and districts. There are mainly three contributions in this paper: (i) the real-time monitoring system of aquatic epidemics researches is first developed from the worldwide perspective; (ii) system provides the superior visual results of statistical analysis on user interface based on the technical processing on data association and light or colour intensities presentations; (iii) Furthermore, the web service is constructed and extended on the separation framework contained web frontend and backend the purpose of which is to reach efficiency of exploitation and failure process.
Design of autonomous navigation system for electric patrol Unmanned Aerial Vehicle Based on Beidou Positioning and satellite based enhancement
Authors: Yang Libo , Yang Jiani , Yao Wencan , Liu Hao 
Published: August 2021

Abstract
In order to reduce the deviation of automatic inspection of transmission tower UAV and improve the efficiency of inspection work, the design of autonomous navigation system of electric power inspection UAV Based on Beidou Positioning and satellite based enhancement is proposed. On the basis of Beidou Positioning and satellite based enhancement, the automatic inspection projector and automatic inspection navigator of transmission tower UAV are designed, and the hardware design of the system is completed. This paper analyzes the endurance of UAV, calculates the coordinates of the best shooting point of UAV, and completes the planning of automatic inspection path of transmission tower UAV according to the horizontal offset coordinates of UAV in the process of transmission tower inspection. Combined with the automatic inspection algorithm of transmission tower UAV, the system software design is completed to realize the automatic inspection of transmission tower UAV. The simulation results show that compared with the traditional inspection system, the deviation of the designed UAV automatic inspection system for transmission tower is significantly reduced.
Design and implementation of code obfuscator based on random opcode
Authors: Si Dan 
Published: August 2021

Abstract
Software obfuscation is a common way of software protection. Source obfuscation and binary obfuscation are unable to achieve universal obfuscation algorithms, while existing compile-time obfuscation algorithms can be effectively restored by symbolic execution. In this paper, an innovative code obfuscation algorithm based on random opcode is proposed. The random number generator is a linear congruence generator written recursively. The algorithm can be used for code obfuscation across languages, platforms and architectures, and has application value for general-purpose software protection. The results of our experiments show this algorithm proposed in this paper can significantly increase the time complexity and space complexity of symbol execution and greatly increase the cost of reverse engineering, which can effectively resist the restore by symbolic execution and has a good confusion effect.
Research on an intelligent electric inspection robot
Authors: Ye Baisong , Song Xiwen 
Published: August 2021

Abstract
Due to the bad environment of electric power inspection, it is easy to cause physical injury to the inspectors. Besides, the heavy workload of inspection is easy to cause the omission of the wireman that leading to major accidents. In order to avoid the mistakes in the process of electric inspection, an intelligent robot for independent inspection instead of manual operation is proposed in this paper. Firstly, the overall configuration of the robot is designed, a four-wheel active driving wheeled mobile mechanism is adopted and the dual parallel camera with three degrees of freedom is carried to inspect the faults existing in the power equipment. Secondly, based on the nonholonomic constraints, the kinematics analysis of the robot is carried out, and the variation laws of the velocity and angular velocity are obtained. In addition, based on the theory of finite element analysis, the modal analysis of the key parts of the robot is carried out to avoid resonance when working to affect the inspection accuracy. Finally, the motion process of the robot in various environments is simulated to verify the correctness of the robot kinematics model and the rationality of the structure design. According to the simulation results, the robot can run stably in typical environments.
Design of intelligent seeding fault monitoring and alarm system for fine seeding machine
Authors: Meng Weiyun , Su Yunlong , Wang Changhu , Qin Lei , Wang Jianxiang , Yan Xinsheng , Pan Yingyue 
Published: August 2021

Abstract
Due to the influence of the operating environment and the design of the corn seeder, the seed will be missed and the quality of seeding will be seriously affected. Based on STM32 single-side machine technology, an operation system for real-time monitoring and remote monitoring of corn seeding operation, which is also a compensation system for the phenomenon of missing seeding during the operation of corn precision seeding machine. The monitoring system is based on the STM32 MCU as the core of the controller combined with human-computer interaction module, reflection type photoelectric sensor, Hall sensor and other principle. The compensation system is composed of self-compensation system and auxiliary compensation system. The monitoring system and compensation system together can effectively solve the phenomenon of maize precision seeding machine in operation, it improves the economy and efficiency of seeding.
Reliability Analysis of Structure Strength based on Spacer Installation Robot
Authors: Liang Liang , Wu Zhengqing , Qian Zhengyang , Liang Wei , Chen Haigen 
Published: August 2021

Abstract
During the construction of high-altitude 10kV power lines, manual installation for spacers has considerably numerous limitations and problems, for example, safety issues, efficiency etc. A new-type spacer installation robot has been introduced to assist the worker to install spacer in air. Prior to put it into usage or production, the reliability of structure strength needs to be tested and verified. This paper verifies the reliability through mathematical calculation and Solidworks/Simulation in which generates stress and displacement plots to determine whether the stresses and elongations in the structure are in a reasonably safe range for both under working conditions and without load.
Intelligent Energy Services Based on Energy Blockchain
Authors: Ling Yunpeng , Xu Nan , Zhou Bo , Yao Suhang , Han Xu , Zhao Zihao , Wang Yongli 
Published: August 2021

Abstract
With the acceleration of Internet information technology, renewable energy technology and electricity reform, the development of integrated energy services has become an important development direction to improve energy efficiency, reduce energy costs, and promote competition and cooperation. Blockchain, as the core technology of industrial innovation and development, has a natural match with the integrated energy service model. The comprehensive energy service mode is analyzed, and the comprehensive energy service model based on block chain master-slave multi-chain structure is constructed. Finally, the operation mode of comprehensive energy service supported by block chain is explored, which provides reference for the application of block chain technology in the comprehensive energy service.
Research on Flexible Interaction Mechanism of Source-Grid-Load-Storage Based on Customer Ubiquitous Electricity Internet of Things Technology
Authors: Rongqing Yi , Xuefei Chang , Zhixin Wang 
Published: August 2021

Abstract
The use of customer-side flexible and controllable load resources to respond to the consumption of clean energy dispatch can significantly reduce the amount of wind abandoning. In this paper, based on Load Segmentation technology, intelligent energy gateway technology, intelligent matching technology, and customer-side flexible load management platform technology, effective practices have been implemented in the aspects of the interaction mechanism, electricity market transaction mechanism and intelligent dispatch response mechanism. It has a good effect on the consumption of clean energy in Jilin Province.
Mine Seismic Exploration Instrument Development and Application Based on £-Δ 24-Bit A/D Converter
Authors: Kun Chen 
Published: August 2021

Abstract
In order to solve the problems of low resolution and poor detection accuracy of current mine seismic exploration instruments, this paper used the data acquisition station of the 24-bit £-ΔA/D converter and the NetBEUI LAN signal transmission protocol to design and develop a synchronization based on the principle of electromagnetic induction. The instrument is a new generation of high-speed, high-resolution mine seismic equipment, and may be applied to geological structure exploration of coal underground channel wave seismic, underground two-dimensional seismic, transient multi-point Rayleigh wave and other seismic work methods. This paper used this instrument to carry out a joint exploration test of channel wave transmission and reflection on a mining face, and through analysis of the collected data, a total of 8 faults and 1 collapse column were delineated, which were confirmed in the later mining face and further verify the accuracy and practicability of the instrument in the safe and efficient mining of coal mines.
Influence of undersea vehicle shafting offset on contact stress and temperature of spherical stern shaft seal
Authors: xuhui Zhou , haoqiang Zhu , jinying Xiong 
Published: August 2021

Abstract
In order to solve the problem that the sealing surface can not adapt itself due to the change of the stern shaft seal of the stern shaft of undersea vehicle. A spherical stern shaft seal structure was proposed in this paper. In order to lay a foundation for the analysis of the sealing performance of the spherical stern shaft seal, a three-dimensional thermal-structural coupling finite element model of the spherical stern shaft seal and the Stern Shaft was established by using ANSYS software. The distribution of contact stress and temperature on the surface of the spherical stern shaft seal was simulated when the Stern Shaft was moving in a series of 0,1,2mm in the vertical direction. The influence of shaft motion on contact stress and temperature on surface of spherical stern shaft seal is analyzed.