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2021 International Symposium on Computer Technology and Information Science (ISCTIS)最新文献

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Research on filling algorithm of incomplete data in north interface of optical fiber network 光纤网络北接口不完全数据填充算法研究
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00014
Yang Dewei, Ran Jinzhi, Shen Kuo, Zhou Xingfu, Huang Bin, Zhao Weihu, Lin Chushan
{"title":"Research on filling algorithm of incomplete data in north interface of optical fiber network","authors":"Yang Dewei, Ran Jinzhi, Shen Kuo, Zhou Xingfu, Huang Bin, Zhao Weihu, Lin Chushan","doi":"10.1109/ISCTIS51085.2021.00014","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00014","url":null,"abstract":"Northbound interface is the interface for manufacturers or operators to access and manage the network. Through it, the superior network management can obtain a large number of data such as configuration performance and operation and maintenance of optical network. For various reasons, there are usually missing values in real data sets. In order to improve the accuracy of filling missing values. In this paper, from the perspective of data mining, we use a variety of processing methods to fill the missing value of the north interface. In this paper, by analyzing the principle of KNN algorithm, decision tree algorithm, random forest algorithm and extreme random tree algorithm, the four algorithms are simulated in the missing value processing of northbound interface data respectively. The performance differences of various algorithms are compared and analyzed, and their advantages and disadvantages are compared. Finally, the most suitable algorithm for missing value processing of northbound interface data is found. Based on the simulation and experimental results, it is concluded that the extreme random tree algorithm has better filling effect in dealing with the missing values of the north interface.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134358895","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}
引用次数: 0
Broadband near-field direction finding algorithm based on subband power weighting 基于子带功率加权的宽带近场测向算法
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00015
Zepeng Yang, Hu Xie, Xiaomin Tan
{"title":"Broadband near-field direction finding algorithm based on subband power weighting","authors":"Zepeng Yang, Hu Xie, Xiaomin Tan","doi":"10.1109/ISCTIS51085.2021.00015","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00015","url":null,"abstract":"Based on 2D-MUSIC method and ISSM algorithm, a high-precision wideband near-field localization algorithm based on subband power weighting is proposed in this paper.Simulation results show that this method has a higher estimation performance than ISSM.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133277406","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}
引用次数: 0
Intelligent Access Control System for Granary Based on Face Recognition and Oxygen Concentration 基于人脸识别和氧气浓度的粮仓智能门禁系统
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00058
Feng-ying Huang, Bin-Jie Cai, Tian–xing Xu
{"title":"Intelligent Access Control System for Granary Based on Face Recognition and Oxygen Concentration","authors":"Feng-ying Huang, Bin-Jie Cai, Tian–xing Xu","doi":"10.1109/ISCTIS51085.2021.00058","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00058","url":null,"abstract":"The granary is often in an oxygen-deficient state. To ensure the safety of people entering the granary and improve the intelligent management of the access control, an intelligent access control system for granary based on face recognition and oxygen concentration is proposed in this paper. It uses sensors in multi-point to detect oxygen concentration in the granary in realtime, and jointly control the door lock with both oxygen concentration and face recognition. Users can view oxygen concentration data, personnel access situation, and remotely control the door lock through Web. This system realizes the intelligent construction and management of the granary, which not only reduces the management cost, but also guarantees the safety of people entering the granary. The design has passed actual tests to prove its effectiveness. It has good practical value and development prospect.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131444487","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}
引用次数: 0
Dynamic Attitude Estimation Using MEMS and Optical Flow Sensors 基于MEMS和光流传感器的动态姿态估计
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00084
Xiang Li, S. Qi, Tang Yanmei
{"title":"Dynamic Attitude Estimation Using MEMS and Optical Flow Sensors","authors":"Xiang Li, S. Qi, Tang Yanmei","doi":"10.1109/ISCTIS51085.2021.00084","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00084","url":null,"abstract":"Micro-electro-mechanical system (MEMS) sensors have been widely used in attitude and heading reference systems (AHRS), including MEMS accelerometer and MEMS gyroscope. The accelerometer can measure gravity vector and help to determine pitch and roll angles, but its measurement is actually the sum of gravity and motion acceleration. As a result, the accuracy of pitch and roll angles will be affected under dynamic conditions. In this paper, optical flow sensor is used to measure the linear motion, and thus the motion acceleration can be estimated from optical flow data. Experimental results show that the proposed method can effectively eliminate the impact of motion acceleration and enhance the dynamic accuracy of AHRS.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123858315","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}
引用次数: 0
The Normalized Weighted Capacity Criterion based Antenna Design for 5G-HAP Cellular Systems 基于归一化加权容量准则的5G-HAP蜂窝系统天线设计
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00076
Chaoxian Zhang, Ping Wu
{"title":"The Normalized Weighted Capacity Criterion based Antenna Design for 5G-HAP Cellular Systems","authors":"Chaoxian Zhang, Ping Wu","doi":"10.1109/ISCTIS51085.2021.00076","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00076","url":null,"abstract":"In this paper, a novel normalized weighted capacity criterion (NWCC) is proposed and applied to 5G-HAP cellular systems to optimize multi-beam antenna pattern. An utility function is designed regarding the cell average and cell edge weighted capacity, so the network design strategy can be adjusted by the weighting factor. Moreover, the CINR restrictions for achievable capacity calculation are discussed to make NWCC practical and implementable in 5G-HAP system. Finally, the numerical simulations are performed to solve the NWCC utility function to find the optimal antenna roll-off according to various HAP height and cell radius.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114248163","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}
引用次数: 0
Research on Field Routing Planning and Optimization Algorithm Based on GIS 基于GIS的现场路由规划与优化算法研究
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00046
Shen Kuo, Ran Jinzhi, Yang Dewei, Zhou Xingfu, Liu Shiyuan
{"title":"Research on Field Routing Planning and Optimization Algorithm Based on GIS","authors":"Shen Kuo, Ran Jinzhi, Yang Dewei, Zhou Xingfu, Liu Shiyuan","doi":"10.1109/ISCTIS51085.2021.00046","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00046","url":null,"abstract":"In this paper, A* optimization algorithm based on GIS is proposed to solve the problems of the lack of scientific methods and means in routing planning under the field conditions and the low computational efficiency. Firstly, this paper extracted the information of water source, road network and elevation through GIS related software, stored it in raster layer and mapped the environment model to save the storage space of the map. Then, the moving speed and constraint constraints were calculated by combining the opening conditions of the environmental model, which were introduced into the cost function of A* algorithm as an adaptive factor. Then, the efficiency of the algorithm was improved and the space and time costs were reduced through the step size crossing mechanism and the two-way search strategy.Finally, software is used to standardize the algorithm flow and visualize the algorithm results, which effectively proves the feasibility and practical application of the algorithm Status.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127167481","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}
引用次数: 0
Silicon-based solar cell: Materials, fabrication and applications 硅基太阳能电池:材料、制造和应用
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00090
Deng Pan, Tu Guo, Xuehua Chen
{"title":"Silicon-based solar cell: Materials, fabrication and applications","authors":"Deng Pan, Tu Guo, Xuehua Chen","doi":"10.1109/ISCTIS51085.2021.00090","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00090","url":null,"abstract":"In view of the destruction of the natural environment caused by fossil energy, solar energy, as an essential technology for clean energy, should receive more attention and research. Solar cells, which are made for solar energy, have been quite mature in recent decades. This paper reviews the material properties of monocrystalline silicon, polycrystalline silicon and amorphous silicon and their advantages and disadvantages from a silicon-based solar cell. The follow-up fabrication of silicon solar cell can be divided into two types: crystalline silicon wafer composed of monocrystalline polycrystalline silicon wafer and thin film silicon wafer. The further application of solar cells is inseparable from their material and manufacture. Therefore, this paper also discusses the various ways of applications of the diverse types of solar cells.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"89 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126319703","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}
引用次数: 0
Research on Electrolytic Aluminum Pot Tending Machine Scheduling Based on Improved Greedy Algorithm 基于改进贪心算法的电解铝罐机调度研究
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00069
Chengguo Su, Jiarui Cui, Xiangquan Li, Qun Yan, Bin Cao, Ruoyu Huang, Hui Lu
{"title":"Research on Electrolytic Aluminum Pot Tending Machine Scheduling Based on Improved Greedy Algorithm","authors":"Chengguo Su, Jiarui Cui, Xiangquan Li, Qun Yan, Bin Cao, Ruoyu Huang, Hui Lu","doi":"10.1109/ISCTIS51085.2021.00069","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00069","url":null,"abstract":"A scheduling method based on an improved greedy algorithm is proposed, and it aims to improve the working efficiency of the pot tending machine (PTM) in the aluminum electrolysis production process. First, the PTM temporary scheduling tasks are screened out by considering the constraints and the production process, in the situation of meet the actual production needs. Second, use the shortest time slice as the time benchmark for the greedy algorithm through analysis tasks. Third, an improved greedy algorithm- the depth-first search algorithm is combined with the greedy algorithm is proposed, it not only improves the efficiency of PTM allocation and scheduling, but also solves the problem of repeated search in the traditional algorithm. Finally, simulation verification the proposed scheduling algorithm.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131771216","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}
引用次数: 0
A Charge Density Model of Silicon-nanowire GAA MOSFET Incoroperating the Source-drian Tunneling Effect for IC Design 集成电路设计中考虑源驱动隧道效应的硅-纳米线GAA MOSFET电荷密度模型
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00078
He Cheng, Chao Zhang, Tiefeng Liu, C. Xie, Zhjia Yang, Zhipeng Zhang
{"title":"A Charge Density Model of Silicon-nanowire GAA MOSFET Incoroperating the Source-drian Tunneling Effect for IC Design","authors":"He Cheng, Chao Zhang, Tiefeng Liu, C. Xie, Zhjia Yang, Zhipeng Zhang","doi":"10.1109/ISCTIS51085.2021.00078","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00078","url":null,"abstract":"One numerical compact model for one-dimensional electron charge density of n-type silicon ballistic nanowire gate-all-around metal-oxide-semiconductor field-effect transistors with ultra-short channel incorporating the source-drain tunneling is proposed. When establishing the AC model in practical device applications, compact models describing transient analysis of the carrier behaviors in the device channel are needed. When focusing on the charge density of carriers within GAA MOSFET devices, carriers transporting along the channel direction induced by the source-drain tunneling effect should also be taken into account in the subthreshold region. In this study, transmission coefficients of the source-drain tunneling effect are evaluated through expressing energy level of the lowest subband with bringing in the exact boundary conditions and using the Wentzel-Kramers-Brillouin approximation. Then, the carrier density can be derived from the charge profile in the channel using quantum statistics theory. Finally, comparisons of the calculations of the carrier densities between the source-drain tunneling and the thermionic modes in ballistic transport are demonstrated.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131811018","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}
引用次数: 1
Dynamic Flow Entry Timeouts Based Packet Nonuniform Sampling for Elephant Flow Detection 大象流检测中基于动态流入口超时的数据包非均匀采样
2021 International Symposium on Computer Technology and Information Science (ISCTIS) Pub Date : 2021-06-01 DOI: 10.1109/ISCTIS51085.2021.00091
Ling Xia Liao, Xiaohang Ma, Zhi Li, Han-Chieh Chao
{"title":"Dynamic Flow Entry Timeouts Based Packet Nonuniform Sampling for Elephant Flow Detection","authors":"Ling Xia Liao, Xiaohang Ma, Zhi Li, Han-Chieh Chao","doi":"10.1109/ISCTIS51085.2021.00091","DOIUrl":"https://doi.org/10.1109/ISCTIS51085.2021.00091","url":null,"abstract":"This paper proposes a controller-based elephant detection approach based on packet statistics sampled by dynamic timeouts of flow entries. It avoids transporting statistics generated at switches to controllers by directly counting statistics using the packets forwarded to controllers for the installation and reactivation of entries. By initializing entries with hard timeout of 0.008s, and keeping doubling it whenever the entries timed out until flows are detected as elephants or out of life spans (the timeouts of flow entries of flows that have been detected as elephants are switched to idle timeout of 5s), the approach achieves a detection accuracy around 90% while reducing the bandwidth usage to less than 30% of the original over packet traces caught from the same network. By giving various initial timeout adjustment strategy to TCP and UDP flows, the approach can maintain the same high detection accuracy and low bandwidth usage over various networks.","PeriodicalId":403102,"journal":{"name":"2021 International Symposium on Computer Technology and Information Science (ISCTIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133716270","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}
引用次数: 0
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