Fei Xia, Hu Song, Ling Wang, Yintie Zhang, Lijun Wang
{"title":"Research on Autonomous Operation Technology of Distributed Data Center","authors":"Fei Xia, Hu Song, Ling Wang, Yintie Zhang, Lijun Wang","doi":"10.1109/ICPECA53709.2022.9719059","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719059","url":null,"abstract":"Due to the use of active and standby machines to process all real-time data at the same time, the existing data acquisition and monitoring (SCADA) system faces severe challenges in terms of data throughput, real-time performance, scalability, and reliability. In-depth research has been conducted on the storage of massive amounts of dynamic sensing data in large-scale smart grids, and the objective requirements of smart grids for data transmission, storage and query have been fully considered, and a distributed data storage method has been proposed to deal with it. The storage strategy for the massive data generated during the operation of the smart grid. Experiments have verified the low latency and high throughput advantages of the framework.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123682215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A hybrid neural network based on XLNet for rumor detection","authors":"Shunzhi Xiang, Fangmin Dong, Shouzhi Xu","doi":"10.1109/ICPECA53709.2022.9718824","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9718824","url":null,"abstract":"When neural network is used to judge the authenticity of events, the original text and multiple user comments are important basis for detecting events. An event can be discribed by the word level features, sentence level features and long-term features in all user comments at the same time. A hybrid neural network model for rumor detection based on XLNet is proposed by integrating those features. Firstly, using XLNet as the language model can accurately describe the text information, save the long-term characteristics of events, and represent the same vocabulary according to the context. Secondly, the hybrid neural network can capture the temporal text features, retain the bidirectional text information according to the context, and save local features and global features at the same time. The attention mechanism in the network can increase the proportion of important features. Finally, the classification function is used to obtain the classification results. Relevant experiments were carried out on Weibo data set. The accuracy of hybrid neural network rumor detection model based on XLNet reached 93.56%, which proves the efficiency of using XLNet and hybrid network to detect rumors.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122072351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and Simulation of Hybrid Electric Vehicle Control Strategy Based on Capacity Difference","authors":"Guizhi Sun, Zhenquan Song, Junhong Xi, Liang Zhu","doi":"10.1109/ICPECA53709.2022.9719061","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719061","url":null,"abstract":"Although hybrid electric vehicle can achieve zero pollution emission, it is difficult to popularize and apply due to the constraints of battery energy density, service life, price and so on. The quality of control strategy directly determines the performance of the whole vehicle. Therefore, the research on control strategy is also one of the technologies with the widest scope and the deepest degree in the field of hybrid electric vehicles. The research scope of hybrid electric vehicle control strategy is from static optimization for specific working conditions to on-line adjustment and dynamic optimization of control strategy under random road conditions by identifying and predicting the actual driving conditions. Due to slight differences in production process and materials, different production batches and other reasons, the difference in the electrical performance of single batteries is an inevitable result. These differences in the application of multiple batteries in series will not only reduce the capacity of the series battery pack, but also cause serious potential safety hazards such as overcharge and overdischarge. In case of serious imbalance, hot spots may appear in the single battery, which is very dangerous. In this paper, the control strategy of hybrid electric vehicle is analyzed, and it is found that there is a process of accelerated decay of battery pack capacity evolution before reaching stability, and the main reason that battery pack life decays faster than that of single battery pack is that the capacity loss of battery pack is the sum of the difference between the capacity loss of single battery pack and the negative active lithium ion loss between single batteries with the minimum remaining charge capacity.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122136995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Progressive Image Generation Model Based on Multi-level Features","authors":"Xiaohua He, Genyuan Zhang, Jianhao Ding","doi":"10.1109/ICPECA53709.2022.9719281","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719281","url":null,"abstract":"Aiming at the demand of high-quality appearance product generation, a progressive image generation model based on multi-level features is proposed in this paper. The algorithm divides the image generation task into multiple stages, and each stage aims to generate the features of a specific abstraction level. Start from the high-level features, and then introduce the lower level features step by step with the training. This incremental generation algorithm enables the model to first focus on high-level abstract semantic information and large-scale structural information, and then gradually shift its attention to more and more fine scales without learning all scales at the same time. The design of the algorithm is inspired by the process of drawing the picture by the painter. The painter first outlines an approximate outline in the image area, and then depicts the detailed texture according to the color of the reference image, so that the whole picture looks more harmonious and consistent. This incremental generation method not only makes the generation process more orderly, but also at each stage in the later order, because the features to be generated have completed the generation of the previous abstract level, the generation task at the current stage is equivalent to being simplified, that is, the incremental generation strategy can use the knowledge learned from the previous subtask to simplify the learning of subsequent subtasks, Therefore, it is easier to train and get better results than the traditional one-step generation algorithm.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113960458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on University Library Information database under Digital Information Environment","authors":"Liu Lin, Cao Lei","doi":"10.1109/ICPECA53709.2022.9718975","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9718975","url":null,"abstract":"In the digital information environment, the information service value of university library has the characteristics of large amount of information, many objects and great differences. In the digital information environment with large amount of information, combined with the strategy of optimal allocation of resources, this paper constructs the optimization model of University Library’s information service value, establishes the optimization strategy of University Library’s information service value under the digital library environment, and analyzes the value of University Library’s information service. Under the “people-oriented” service concept, this paper probes into the characteristics of the information needs of teachers and readers, establishes the information service relationship of University Library through network virtual communication, improves the quality of information service, reconstructs the subject oriented comprehensive knowledge object, and integrates the content evaluation of user wisdom, which is an important basis for other users to measure the value of resources. It creates a good “resonance” value, uses the wisdom of users to reconstruct knowledge, and reduces the time for other users to search, filter and organize resources. Based on the service-oriented logic, this paper analyzes the situation of user intelligence integration in digital knowledge space, probes into the way of user intelligence integration in knowledge service, and improves the information service value of University Library under the digital information environment.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122713876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Continuous-Time Sigma-Delta Modulator with Compensating Transconductance Stages and RZ FIR-DAC","authors":"Changbao Xu, Jiantao Yuan, Zhili Liu, Mingyong Xin, Junjian Chen, Dan-dan Zheng, Hao Yao, Kai Huang","doi":"10.1109/ICPECA53709.2022.9718873","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9718873","url":null,"abstract":"This paper introduces an energy-efficient continuous-time sigma-delta modulator (CTSDM) that adopts transconductance stages compensating for the low frequency gain of the integrator, which injects an opposite signal into the input of the integrator to compensate for the degradation of performance and phase response caused by limited DC gain, and further reduces the requirement of each integrator to realize a low-power design. In addition, the association between return-to-zero (RZ) pulse and finite-impulse-response (FIR) digital-to-analog converter (DAC) in the feedback path of the modulator can reduce the influence of clock jitter and inter-symbol interference (ISI) on the signal-to-noise-and-distortion ratio (SNDR) and the linearity of the system. The implementation and experimental results show that the CTSDM achieves 98.7 dB SNDR in a 24 kHz bandwidth (BW), and dissipates 144.4$mu$W under 1.2V power supply, this corresponds to a figure-of-merit (FoM) of 180.9 dB, this work is applied to codec applications in edge computing.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122754671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Haomin Wei, Jiajia Wang, Yuehui Shan, Zhangxia Guo, Jing Ma
{"title":"Application of Sobol Sensitivity Analysis with Surrogate Model of Analytical Function","authors":"Haomin Wei, Jiajia Wang, Yuehui Shan, Zhangxia Guo, Jing Ma","doi":"10.1109/ICPECA53709.2022.9719024","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719024","url":null,"abstract":"The Sobol sensitivity analysis method enables identifying the sensitivity factors that significantly impact the output results of mathematical models from a large number of uncertainty factors and analyzing and measuring the degree of their impact and sensitivity on the output results. However, Sobol sensitivity analysis is challenging to perform due to the specific analytical functions of mathematical models in the industry that are difficult to obtain frequently. In this paper, the required functional relationship was fitted by combining heat transfer theory with Lasso regression for the relationship between the influence of temperature changes in a piece of equipment in an outdoor environment and external environmental factors, and a more satisfactory result was obtained by performing a sensitivity analysis in this way. The study results prove that this method could provide convenience for industrial tests and has application value.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126301539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TransNUNet: Using Attention Mechanism for Whole Heart Segmentation","authors":"Xiaoniu Yang, Xiaolin Tian","doi":"10.1109/ICPECA53709.2022.9719101","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719101","url":null,"abstract":"Cardiac CT segmentation of the whole heart is one of the very complex and key technologies in the auxiliary treatment of cardiovascular diseases. It can help doctors analyze the lesion and other key areas. Because the data of cardiac CT images have the characteristics of small data volume and large size, there are higher requirements for the processing speed and segmentation accuracy of the algorithm. This research proposes a semantic segmentation network based on transformer. This method uses TransUNet as the main architecture, introduces an attention mechanism on its basis, and improves the loss function. Our experiment achieved a Dice score of 0.921 on the dataset from MM-WHS 2017 Challenge, and the results show that the method has good performance.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liu Xiaoxi, Peng Dengquan, Nie Jingxin, Jing Jiang, Zhang Yizhou, Zhang Jinhong
{"title":"Vision-based Method of Detecting Geometric Parameters of Railway Catenary","authors":"Liu Xiaoxi, Peng Dengquan, Nie Jingxin, Jing Jiang, Zhang Yizhou, Zhang Jinhong","doi":"10.1109/ICPECA53709.2022.9718874","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9718874","url":null,"abstract":"Aiming at the need for dynamic and high-precision detection of railway catenary geometric parameters, a method of detecting geometrical parameters of catenary based on the principle of structured light vision is proposed in this paper. The structured light vision measurement system is adopted to obtain the geometric feature images of catenary, and the template matching method is used to obtain the detection points in the image, and then get the geometric parameters of the catenary. Line tests have been conducted on Xi’an Metro Line 1 and the Daxi High-speed Railway (Xi’an North Section) line extension. The results show that the vision-based detection method for geometric parameters of the catenary has high accuracy and stability, and has broad application prospects.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124877363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Approach to Converting Relational Database to Graph Database: from MySQL to Neo4j","authors":"Hui Feng, Meigen Huang","doi":"10.1109/ICPECA53709.2022.9719151","DOIUrl":"https://doi.org/10.1109/ICPECA53709.2022.9719151","url":null,"abstract":"At present, there are few research methods that can convert any relational database into a graph database, and most of them are based on a specific field data set to build a relational database, and then perform simple conversion through the characteristics of the data set.Aiming at this problem, a universal conversion method is proposed. Firstly, converted the most basic component tables name, records, and fields in the relational database into labels, nodes, and corresponding attributes of the nodes under the graph database; secondly, used the intermediate connection table method to convert the foreign keys in the relational database into the relationship of a graph database between the nodes; then some constraint issues in relational databases, such as multiple primary key issues, indexes, and no default values, were optimized to form a final graph database model that met expectations; finally, Realized the effective migration of large quantities of data in the relational database to the constructed graph database model. In the experiment, the above method was used to successfully convert a relational database to a graph database, and the database construction, data import, SQL query and Cypher language query were performed for the database before and after the conversion, and through the analysis and comparison of data integrity, time cost, result validity,which shows that the integrity and operability of the database before and after conversion are consistent, and the data processing efficiency of the database is much higher than that of the relational database, which verifies that the method in this paper is feasible.","PeriodicalId":244448,"journal":{"name":"2022 IEEE 2nd International Conference on Power, Electronics and Computer Applications (ICPECA)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128892036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}