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2019 International Conference on Smart Grid and Electrical Automation (ICSGEA)最新文献

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Design Based on Wireless Energy Transfer System of Self-Resonant 基于自谐振的无线能量传输系统设计
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00024
Li Wei-bing, Yubing Jing, Jing Ni-qin
Wireless Power Transfer can use electrical equipment to get rid of the bondage of wires. Taking single-chip microcomputer STC12LE5A60S2 as the control core, a medium-distance radio energy transmission system is designed by using electromagnetic coupling resonance technology. Royer self-oscillating circuit is designed to generate sinusoidal oscillation signals of a certain frequency. Electromagnetic energy is transmitted through LC resonance circuit, and electromagnetic energy is received by LC resonance circuit at the receiving end through rectification and stabilized voltage output, realizing wireless energy transmission. The system also designed a wireless energy relay module, effectively increasing the distance of wireless energy transmission up to 15 cm. The power detection chip INA219 is used to collect the output voltage and current, and the LCD LCD12864 is used to display the output voltage, current and transmission time.
无线电力传输可以利用电气设备摆脱电线的束缚。以STC12LE5A60S2单片机为控制核心,采用电磁耦合共振技术设计了一种中距离无线能量传输系统。设计罗耶自振荡电路,产生一定频率的正弦振荡信号。电磁能量通过LC谐振电路传输,接收端LC谐振电路通过整流和稳压输出接收电磁能量,实现无线能量传输。系统还设计了无线能量中继模块,有效地将无线能量传输距离提高到15厘米。电源检测芯片INA219采集输出电压和电流,LCD LCD12864显示输出电压、电流和传输时间。
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引用次数: 0
Daily Variation Characteristics and Influencing Factors of the Haze in Xiangxi From 1981 to 2017 1981 - 2017年湘西雾霾日变化特征及影响因素
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00103
W. Zhou, Benzhi Wang, Chao Chen, Yuzhen Yang
In order to reveal the evolution, spatial and temporal distribution characteristics and influencing factors of haze weather in Xiangxi under the background of climate change, daily meteorological data of eight national meteorological observatories in Xiangxi were revised and analyzed. The results showed that the haze days in Xiangxi from 1981 to 2017 showed a significant increase trend; the number of haze days in autumn and winter was more than that in spring and summer; the regional distribution was more in the south, north and less in the middle; the proportion of light haze was the largest in the central urban area of Xiangxi, accounting for 66.81%, and the proportion of severe haze was the smallest, accounting for 4.17%. Except for light haze, the number of light, medium and heavy haze days increased. The main meteorological factors are annual average temperature, maximum temperature, high temperature day, precipitation≥ 0.1mm days), f ≥ 5.0m/s days, average wind speed and so on. The average temperature, maximum temperature and average wind speed are significantly positively correlated with haze day; the number of days with precipitation ≥ 0.1mm decreases, relative humidity ≤80% increases, and PM2.5 and SO2 are negatively correlated with visibility and relative humidity, and the frequency of haze occurrence. There was a significant correlation between the rates.
为揭示气候变化背景下湘西地区雾霾天气的演变、时空分布特征及影响因素,对湘西地区8个国家级气象台的日气象资料进行了订正分析。结果表明:1981 ~ 2017年湘西霾日数呈显著增加趋势;秋冬季霾日数多于春夏季;区域分布以南偏北、中部偏少为主;湘西中心城区轻度雾霾占比最大,为66.81%,重度雾霾占比最小,为4.17%。除轻度雾霾外,轻、中、重度雾霾日数均有所增加。主要气象因子为年平均气温、最高气温、高温日、降水≥0.1mm日、f≥5.0m/s日、平均风速等。平均气温、最高气温、平均风速与霾日数呈显著正相关;降水量≥0.1mm的日数减少,相对湿度≤80%的日数增加,PM2.5、SO2与能见度、相对湿度、雾霾发生频次呈负相关。这些比率之间有显著的相关性。
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引用次数: 1
Research on Tiered Storage Method for Big Data of Virtual Information Based on Cloud Computing 基于云计算的虚拟信息大数据分层存储方法研究
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00077
Ping Chen, Jianlan Liu, Xing Liu, Ruiying Zheng, Yongyan Pan
In the context of big data, the rapid growth of information makes data storage more difficult. Hierarchical storage technology dynamically divides data into multiple tiers of hot data and cold data according to the data usage frequency, and distributes them in storage devices with different access rates. Hierarchical storage technology can achieve higher performance of service response and reliability. It stores data in different tiers of media, and data migration is done in different tiers of media according to the access heat range of data to make the data properly distributed in the storage pool. This paper studies the tiered storage technology of virtual information in cloud computing environment to give full play to the advantages of tiered storage and improve the access rate and recovery effect of hot data.
在大数据背景下,信息的快速增长使得数据存储更加困难。分层存储技术根据数据的使用频率,将数据动态划分为热数据和冷数据的多个层次,并分布在不同访问速率的存储设备中。分层存储技术可以实现更高的业务响应性能和可靠性。它将数据存储在不同的介质层中,并根据数据的访问热范围在不同的介质层中进行数据迁移,使数据在存储池中合理分布。本文研究了云计算环境下虚拟信息的分层存储技术,以充分发挥分层存储的优势,提高热点数据的访问速率和恢复效果。
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引用次数: 0
Teaching Method Improvement of Engineering Management Major in University Based on Data Mining 基于数据挖掘的高校工程管理专业教学方法改进
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00096
Liu Xiuhong
With the in-depth development of teaching management, schools urgently need to make quantitative evaluations of various sections of teaching. Simultaneously, the era of BIM requires more managers to apply BIM technology to continuously improve the performance of the construction industry using data mining algorithm. Then, based on the experience of BIM teaching reform in American universities, the role of BIM knowledge system and the planning of BIM teaching reform are analyzed. By comprehensive quality of engineering management talents with related data mining and teaching reform plan, a BIM curriculum system for engineering management majors was established, and suggestions for BIM teaching reform were proposed, which also provided reference for similar teaching methods in university.
随着教学管理的深入发展,学校迫切需要对教学的各个环节进行量化评价。同时,BIM时代要求更多的管理者应用BIM技术,利用数据挖掘算法不断提高建筑行业的绩效。然后,结合美国高校BIM教学改革的经验,分析了BIM知识体系的作用和BIM教学改革的规划。通过对工程管理类人才综合素质的挖掘,结合相关数据挖掘和教学改革方案,构建工程管理类专业BIM课程体系,并提出BIM教学改革建议,为高校同类教学方法提供参考。
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引用次数: 0
Research on Quality Modeling of Information Education in Colleges and Universities Based on Web Data Mining 基于Web数据挖掘的高校信息教育质量建模研究
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00134
Ruiming Tang, Junping Zou, Shan Chen, Lun Li
In order to remedy the problem of poor practicability and effectiveness of traditional teaching quality model, this paper proposes a research model of information-based education quality in Colleges and Universities Based on Web data mining. Firstly, through the method of feature acquisition, the teaching information data of colleges and universities are mined, and the characteristic parameters of the mining data are evaluated, the data evaluation grades are divided, and the quality of education is optimized according to different levels, so as to realize the effective modeling research on the quality of information-based education in Colleges and universities. The experimental results show that the research model of university information education quality based on Web data mining is more practical than the traditional model.
为了弥补传统教学质量模型实用性和有效性差的问题,提出了一种基于Web数据挖掘的高校信息化教学质量研究模型。首先,通过特征获取的方法,对高校教学信息数据进行挖掘,对挖掘数据的特征参数进行评价,划分数据评价等级,并根据不同层次对教学质量进行优化,从而实现对高校信息化教育质量的有效建模研究。实验结果表明,基于Web数据挖掘的高校信息教育质量研究模型比传统模型更具实用性。
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引用次数: 1
The Development of Digital Game Teaching of Minority Traditional Sports with the Integration of Two Levels of Logistic Regression 结合两层次逻辑回归,开展少数民族传统体育数字化游戏教学
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00114
Lei Liu
In order to ensure that the greatest advantage can be obtained in the information age, according to the actual situation of digital sports teaching of traditional sports of minority nationalities, the development of digital game teaching in traditional minority sports based on two-level logistic regression method is proposed. Minority Sports, DDGTTMS) build. The establishment of the concept method of the task decomposition of the digital game development of minority traditional sports can realize the effective analysis of the single data after decomposition, including effective pre-processing and the teaching arrangement of digital games for ethnic minority traditional sports. Finally, the effectiveness of the method is verified by simulation experiments.
为了确保在信息时代能够获得最大的优势,根据少数民族传统体育数字化教学的实际情况,提出了基于两级逻辑回归方法的少数民族传统体育数字化游戏教学的开发。少数民族体育,DDGTTMS)建设。建立少数民族传统体育数字游戏开发任务分解的概念方法,可以实现对分解后的单个数据的有效分析,包括对少数民族传统体育数字游戏的有效预处理和教学安排。最后,通过仿真实验验证了该方法的有效性。
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引用次数: 0
Using Multi-level Fuzzy Comprehensive Evaluation to Optimize the Quality of Network Classroom Teaching Evaluation for Universities 运用多层次模糊综合评价优化高校网络课堂教学质量评价
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00064
Rui Jiang, Chen Zhou, Shuhua Liu
Contraposing to the actual problems in the evaluation of network classroom teaching quality in Colleges and universities, a scientific evaluation index system of classroom teaching quality is established by discussing the basic principle of multi-level fuzzy comprehensive evaluation, and the weight of evaluation index is reasonably determined by analytic hierarchy process(AHP). It reduces the interference of subjective factors and innovatively constructs a scientific, rational and effective classroom teaching approach with multi-level fuzzy comprehensive evaluation(FCE) model of quality. The practical application results show that the scheme can define the fuzziness of teaching quality by different levels, to solve the problem of weight distribution, evaluate the teaching quality scientifically, objectively and impartially, and improve the accuracy of teaching evaluation.
针对高校网络课堂教学质量评价中存在的实际问题,通过探讨多层次模糊综合评价的基本原理,建立了科学的课堂教学质量评价指标体系,并运用层次分析法合理确定了评价指标的权重。运用多层次模糊质量综合评价模型,减少主观因素的干扰,创新构建科学、合理、有效的课堂教学方法。实际应用结果表明,该方案能够对教学质量的模糊性进行不同层次的界定,解决了权重分配问题,科学、客观、公正地评价了教学质量,提高了教学评价的准确性。
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引用次数: 1
Dynamic Behavior of CFRP Hangers in a Half-Through Arch Bridge 某半通式拱桥CFRP吊杆动力性能研究
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00047
Jin-Feng Li, J. Gao
Carbon fiber reinforced polymers (CFRP) is an ideal material for tension member, such as hangers, tied bar, stay cables in large span bridges, for its excellent properties in high strength, fatigue resistance and corrosion resistance. To study the behavior of the CFRP hangers in arch bridge, a finite element model of an as-built half-through arch bridge was established, in which the original steel hangers were replaced by CFRP ones with identical strength. The analysis of the bridge longitudinally and transversely, subjected to single-vehicle and multi-vehicle loading, is carried out. The differences between the behavior of the steel and CFRP hangers are compared. It is shown that under the vehicle loading, although the axial stress of hangers in different positions differs from each other, the variation presents in the same way. Both under single and multi-vehicle loading, the stress level of the CFRP hanger is larger than that of the original steel one, with the maximum stress value increased significantly by almost 80-100%. The axial stress distribution in the CFRP and the steel hangers is basically the same, while the frequency has different rules, of which CFRP hangers show higher. It is found that shorter hangers display larger stress both in steel and CFRP hangers, the latter presents greatly with the stress in shortest hanger higher than that in longest hanger by 51.9% on the average.
碳纤维增强聚合物(CFRP)具有高强、耐疲劳、耐腐蚀等优异性能,是大跨度桥梁中吊杆、系杆、斜拉索等张拉构件的理想材料。为研究CFRP吊架在拱桥中的受力性能,建立了一座已建成的半贯通拱桥的有限元模型,将原钢吊架替换为具有相同强度的CFRP吊架。对该桥在单、多车荷载作用下进行了纵向和横向分析。比较了钢和CFRP吊架性能的差异。结果表明:在车辆荷载作用下,不同位置吊架的轴向应力虽然不同,但变化规律相同。在单车和多车荷载作用下,CFRP吊架的应力水平均大于原钢吊架,最大应力值显著提高了近80-100%。CFRP与钢吊架的轴向应力分布基本相同,但频率有不同的规律,CFRP吊架的轴向应力分布较高。研究发现,短吊架在钢吊架和CFRP吊架中均表现出较大的应力,后者表现出较大的应力,最短吊架的应力比最长吊架平均高51.9%。
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引用次数: 0
Interactive Application Security Testing 交互式应用程序安全测试
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00131
Yuanyuan Pan
The operation of e-commerce platform requires very high security. Interactive Application Security Test (IAST) is a new generation of vulnerability analysis technology first proposed by Synopsys Company in the United States. This technology can effectively solve the technical vulnerabilities of various websites represented by e-commerce platform. This technology combines static application security test (SAST) with dynamic application security test (DAST) by using a unique design context context association mechanism. Through this deep integration of interaction capabilities and differential comparison mechanism, a fast and highly automated vulnerability analysis capability can be built in running applications. IAST integrates the advantages of SAST and DAST technology, continuously monitors and identifies vulnerabilities in applications. Aspect-oriented programming technology enables differential comparison mechanism to perform dynamic security analysis in running programs, and extracts contextual content, data flow and flow control information from active applications to provide targeted information. Run the access capability of the actual data values at the code level. Therefore, precisely because of these abundant information, the differential comparison mechanism can identify more anomalies than other existing security tools, and achieve unprecedented accuracy. Through IAST technology, it can also confirm or eliminate whether the detected vulnerabilities can be used to attack, and determine the location of the vulnerabilities in the application code. This technology has been listed as one of the top ten information security technologies in 2014 by Gartner Information Technology Research and Consulting Company of the United States, and has a very broad application prospects.
电子商务平台的运营对安全性的要求非常高。交互式应用安全测试(IAST)是由美国Synopsys公司首先提出的新一代漏洞分析技术。该技术可以有效解决以电子商务平台为代表的各类网站的技术漏洞。该技术通过独特的设计上下文关联机制,将静态应用安全测试(SAST)与动态应用安全测试(DAST)相结合。通过这种交互能力和差异比较机制的深度集成,可以在运行的应用程序中构建快速、高度自动化的漏洞分析能力。IAST集成了SAST和DAST技术的优势,持续监控和识别应用中的漏洞。面向方面编程技术使差分比较机制能够在运行的程序中执行动态安全分析,并从活动的应用程序中提取上下文内容、数据流和流控制信息,提供有针对性的信息。在代码级别运行实际数据值的访问功能。因此,正是由于这些丰富的信息,差异比较机制可以识别比其他现有安全工具更多的异常,并达到前所未有的准确性。通过IAST技术,还可以确认或消除检测到的漏洞是否可以被用于攻击,并确定漏洞在应用代码中的位置。该技术被美国Gartner信息技术研究与咨询公司列为2014年十大信息安全技术之一,具有非常广阔的应用前景。
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引用次数: 12
Research on Mobile Phone Attendance Positioning System Based on Campus Network 基于校园网的手机考勤定位系统研究
Pub Date : 2019-08-01 DOI: 10.1109/ICSGEA.2019.00094
Zhen Xu, Ping Chen, Weihua Zhang, Xing Liu, Heqing Wu
With the promotion of "cooperative learning and research teaching" in colleges and universities, the demand for self-learning ability of students is getting higher and higher. How to supervise student's learning has become a problem that currently plagues colleges and universities. In order to better supervise and manage students, the attendance system plays an important role in the teaching and management of the school. With the popularity of computer networks, many colleges and universities have established campus networks. This makes it possible to check attendance for students in the network environment. At the same time, the popularity of smart mobile phones is getting higher and higher. Almost every student has a smart phone. Using the campus network and mobile phones to attend students' attendance has become a future development trend. This paper mainly studies the implementation method of mobile phone attendance and positioning system based on campus network in positioning and student verification.
随着高校“合作学习与研究性教学”的推广,对学生自主学习能力的要求越来越高。如何对学生的学习进行监督已成为当前困扰高校的一个问题。为了更好的监督和管理学生,考勤系统在学校的教学和管理中起着重要的作用。随着计算机网络的普及,许多高校都建立了校园网。这使得在网络环境下检查学生出勤成为可能。与此同时,智能手机的普及程度也越来越高。几乎每个学生都有智能手机。利用校园网和手机考勤已成为未来的发展趋势。本文主要研究了基于校园网的手机考勤定位系统在定位和学生验证方面的实现方法。
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引用次数: 2
期刊
2019 International Conference on Smart Grid and Electrical Automation (ICSGEA)
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