Wang Yu, Wu Zhiheng, Chen Qiyu, Liao Fei, Li Ping, Tong Jigang, Luo Liangchuan
{"title":"LED instrument screen character recognition detection based on machine vision","authors":"Wang Yu, Wu Zhiheng, Chen Qiyu, Liao Fei, Li Ping, Tong Jigang, Luo Liangchuan","doi":"10.1109/ICPECA51329.2021.9362722","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362722","url":null,"abstract":"at present, more and more kinds of instruments are used, and more and more LED screen instruments are used. The recognition and detection of led instrument screen information is very important for a series of problems, such as the current LED instrument screen character information recognition is difficult, the detection is difficult, the screen tells the splash screen and so on. A screen character recognition detection method of LED instrument based on machine vision is proposed. Firstly, the character area of the LED instrument screen is recognized and located, and the minimum region containing character information is segmented, then the feature convolution operation is carried out, and the character feature pixel distribution is determined according to the convolution operation results. Finally, the segmented character features are recognized and detected. The experimental results show that this method can effectively detect the screen character recognition of LED instrument, and has a certain practical application value.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114149742","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":"Imprecise Reliability Analysis for Lifetime Modeling Based on Four-parameter Weibull Distribution","authors":"Qiuge Dan, Debin Ye, Y. Teng, Lulu An","doi":"10.1109/ICPECA51329.2021.9362574","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362574","url":null,"abstract":"Weibull distribution is one of the most classical distributions in the field of reliability applications. In order to improve the capability to fit various failure data, a number of extended forms of Weibull distribution have been proposed. In this paper, we will focused on the four-parameter Weibull distribution. It is difficult to estimate the parameters of fourparameter Weibull model accurately under limited failure data, but we can treat the parameter as a random variable and use the gamma distribution as a prior distribution to get the imprecise ones. From the view of impreciseness and Bayesian theory, we proposed a novel imprecise reliability analytical method named the Four-parameter Weibull-Gamma model which used for incomplete life data. The upper and lower bounds of the cumulative density function, the reliability function and the hazard function can also be obtained. Aiming at two cases that the hazard function is monotonically increasing or a bathtub shape, the experiments demonstrate the fitting effect of the proposed model, and the modeling capability of components or systems for different hazard function. Furthermore, it also verifies the multi-parameter of the proposed model can increase the adjustable flexibility of the distribution.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121126383","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 the frequency prediction of barrier-free resources in airport terminal based on ARIMA model","authors":"Qingyang Yu, Ning He, Weijia Ye, Lifei Pang","doi":"10.1109/ICPECA51329.2021.9362603","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362603","url":null,"abstract":"At present, the airport is constantly promoting the construction of barrier-free environment to assist special passengers with hearing, visual or mobility problems. More and more barrier-free service resources such as new technologies, new products and new facilities are deployed in the terminal. In order to better improve the utilization rate and deployment rationality of barrier-free service resources and enhance the barrier-free service guarantee capability of civil aviation airports, it is necessary to evaluate the current use of barrier-free service resources and predict the future use frequency. In this paper, using the mathematical model with high prediction accuracy, a kind of usage prediction method suitable for many kinds of barrier-free service resources is verified. In order to better illustrate the content of the prediction method of this article, the accessibility service resource research object is marked as ‘Facility A’. Based on the randomness and time relevance of the use of ‘Facility A’ by passengers, using python to generate random frequency time series data on the usage frequency of ’Facility A’ in the past 60 months. The serial data is as the original data for method of study in this paper, regarded as real data as well. After the analysis and processing of the original data, to build a mathematical prediction model of usage frequency based on ARIMA model, to calculate the usage prediction data based on the real data, and analyzing the deviation between the real data and the predicted data using with the mathematical theory, so as to verify the feasibility of the prediction method in this paper.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132551883","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 Vehicle Dispatch Problem Based on Kuhn-Munkres and Reinforcement Learning Algorithm","authors":"Mengqi Li, Ziyao Geng, Yi Wang","doi":"10.1109/ICPECA51329.2021.9362615","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362615","url":null,"abstract":"With the development of artificial intelligence and 5G communication technology, autonomous vehicles are gradually becoming more achievable. Autonomous vehicles are used in urban transportation to provide taxi service, which effectively reduces labor cost and realizes intelligent transportation systems. The vehicle system combined with 5G technology can quickly obtain traffic information, which provides a decision basis for the vehicle dispatching. Thus, it is necessary to develop an efficient way to distribute and allocate these vehicles to maximize the potential income for the system. This paper studies the vehicle dispatching based on the travel data from the 2016 New York City Green Taxi data and propose two dispatching methods. First, we consider the dispatching problem as a maximum weight value matching problem. Then a distance-based dispatching method is proposed with the goal of minimizing the waiting time of passengers by using the Kuhn and Munkres (KM) algorithm. Finally, we formulate the decision of vehicle dispatch with a Markov Decision Process (MDP) and introduce a Reinforcement Learning (RL)-based dispatching method, which combines RL algorithm and KM algorithm to solve the dispatching problem with the goal of maximizing long-term revenue of divers. In the experiment, KM algorithm is compared with the full permutation algorithm to prove the effectiveness of KM algorithm. The performance of the distance-based dispatching method and RL-based dispatching method are presented in a small-scale dispatching and a large-scale dispatching. Experiment results show that the total revenue of vehicles is improved by about 20% by using RL-based dispatching method, compared to dispatching method based on the distance. Thus, RL-based dispatching method is more effective in a dispatching platform. It could be used by future public autonomous vehicle companies to achieve the fulfill the need of maximizing the potential income for the system.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"133 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133354949","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":"Rail Track Edge Detection Methods Based on Improved Hough Transform","authors":"Xiaoguang Li, Zijian Cong, Yong Zhang","doi":"10.1109/ICPECA51329.2021.9362706","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362706","url":null,"abstract":"In order to ensure the safety of train operation, it is necessary to strengthen the real-time monitoring of train operation environment. This paper use improved Hough transform to detect the rail track edge. First, detect the edge of the image use Canny operator. Second, find the lines among the edge image. Third, find longest lines as the outlines. Matlab simulation is used to detect the collected image. Experimental results show that this detection method can get a good result.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"270 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133712759","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":"Modeling and Control of Temperature in Enthalpy Difference Laboratory","authors":"Zihao Dong, Jun Wei, Huixiu Gao","doi":"10.1109/ICPECA51329.2021.9362682","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362682","url":null,"abstract":"The enthalpy difference laboratory is designed to test the air conditioner performance, which can simulate the environmental conditions. The enthalpy difference method is used to investigate the refrigeration ability and heating capacity of air conditioner. The temperature of the laboratory is controlled by three heaters, five chillers and motors. Due to the influence of equipment power and room size, the temperature control has the characteristics of nonlinearity and strong hysteresis. In this paper, the modeling method is used to get a better temperature curve. We got four temperature models, and choose two suitable control models through comparison. Finally, the laboratory model is determined by experimental data and the apropriate methods is adopted to control the temperature. The simulation is carried out to verifies the effectiveness of the proposed methods.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134274263","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":"Uncertainty evaluation and conformity evaluation of DC resistance tester","authors":"Quanying Liu, F. Huang, D. Sui, Hong Tang","doi":"10.1109/ICPECA51329.2021.9362678","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362678","url":null,"abstract":"In order to investigate the reliability of verification results of DC resistance tester, the uncertainty of verification results was evaluated. According to JJF 1059.1-2012 “evaluation and expression of uncertainty in measurement”, a mathematical model is established to analyze the sources of uncertainty of measurement results and calculate the components of uncertainty. Taking 500m$Omega$ point of DC resistance tester as a verification point, the standard uncertainty expressed by absolute value and relative value is 321$muOmega$ and 0.064% respectively. Finally, based on the calculation of uncertainty, the conformity evaluation method and process of the tested instrument are given.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131738304","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 of Quad-Band Filter Using SIR and DGS","authors":"Xinge Wang, Ling Wang, Wanyin Yang, Yimei Zhang","doi":"10.1109/ICPECA51329.2021.9362506","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362506","url":null,"abstract":"A novel quad-band microstrip bandpass filter (BPF) using stepped impedance resonators (SIR), stub loaded resonator(SLR) and defect ground structure(DGS), which can be utilized in Fourth Generation Mobile Telephone Mobile Communication Standard(LTE-TDD), Direct To Home(DTH), 5-th Generation(5G) and Digital Microwave Relay Communication. The BPF was modeled and simulated by using the Ansys HFSS software. And the fabricated filter has the minimum insertion losses of 0.67 dB, 1.5 dB, 0.3 dB and 2.1 dB and the return losses 19.5 dB, 11.8 dB, 20.8 dB and 14.8 dB. By tuning the parameter of DGS, a multi-band filter can be easily optimized. This study provides a simple and effective method to design a quad-band filter with low insertion loss and compact size.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129198942","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":"Chinese Semantic Role Labeling Integrating Global Information and Attention Mechanism","authors":"Ao Zhu, Guoyi Che, F. Wan, Ning Ma","doi":"10.1109/ICPECA51329.2021.9362502","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362502","url":null,"abstract":"With the rapid development of artificial intelligence and Chinese information processing technology, natural language processing related research has gradually deepened to the level of semantic understanding, and Chinese semantic role labeling is the core technology in the field of semantic understanding. In the field of Chinese information processing where statistical machine learning is still the mainstream, traditional labeling methods rely heavily on the parsing degree of sentence syntax and semantics, so the labeling accuracy is limited and cannot meet current needs. In response to the above problems, this paper proposes a CNN-BiLSTM-Attention-CRF fusion model for Chinese semantic role tagging, and at the same time the model performance optimization research. In the model training stage, convolution kernels of different sizes are used to capture the local features of the sentence, and then the different local features are spliced into a new feature vector through the average pooling technology, which is the global feature that integrates the semantic information of the entire sentence sequence, the same part of speech, sentence phrase Multi-level linguistic feature groups such as structure are fed into the model together. Through multiple sets of experimental demonstrations, the feature set integrated into the sequence global information can significantly improve the various indicators of the model.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134333294","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":"Similarity Measurement of Spatiotemporal Trajectories Considering Semantic Features","authors":"Chengcheng Jiang, Yan Zhou, Cong Zhang","doi":"10.1109/ICPECA51329.2021.9362605","DOIUrl":"https://doi.org/10.1109/ICPECA51329.2021.9362605","url":null,"abstract":"To solve the difficulties that considering the spatiotemporal and semantic features simultaneously in the similarity measurement of spatiotemporal trajectories, a multi-dimensional semantic matrix of spatiotemporal trajectory is constructed, and a unified quantitative semantic space is established by combining the singular value decomposition. The spatiotemporal trajectory is mapped into a feature semantic vector and a low rank feature matrix, containing the essential characteristics of trajectory, and the data dimensional reduction and denoising are realized after the decomposition process. Comparative experiments on real dataset demonstrate that the proposed method can accurately describe the essential characteristics of spatiotemporal trajectories on the basis of geospatial level, and effectively measure both semantic and geographic similarities among trajectories.","PeriodicalId":119798,"journal":{"name":"2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134638454","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}