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Communication Equipment Condition Based Maintenance Decision 基于通信设备状态的维修决策
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35436
Yongjun Peng, Rui Guo, Anping Wan
In order to develop a scientific and cost reasonable maintenance strategy to solve the current high cost problem of running and maintenance management for communication equipment, introduce the same type set which has the similar running condition with the object set as the reference set and propose a life prediction method for communication equipment. The method solves the similarity factor of life evaluation parameters (running time, times of starting and stopping) in actual and benchmark running condition by using experience running data. In order to accurately calculate the running life of the object set under the actual running conditions and overcome the shortcomings of the traditional artificial statistics, the calculation method of real time and historical life is presented. Then based on the product of the maintenance factor and service factor of running time and the times of starting and stopping, the concept of the key parameters of the decision of condition-based maintenanceequivalent service factor is put forward; According to the relationship between the equivalent service factor in running time and to predict period, four kinds of decision models of condition-based maintenance are established. The historical data of communication equipment running were perioded to predict when given equivalent service factor.
为了制定科学、成本合理的维护策略,解决当前通信设备运行维护管理成本高的问题,引入与目标集运行条件相似的同一类型集作为参考集,提出通信设备寿命预测方法。该方法利用经验运行数据求解实际工况和基准工况下寿命评估参数(运行时间、启停次数)的相似系数。为了准确计算设定对象在实际运行条件下的运行寿命,克服传统人工统计方法的不足,提出了实时和历史寿命的计算方法。然后,基于运行时间维修系数与服务系数与启停次数的乘积,提出了工况维修等效服务系数决策关键参数的概念;根据运行时间中等效服务因子与预测周期之间的关系,建立了四种状态维修决策模型。在给定等效服务系数的情况下,对通信设备运行的历史数据进行周期预测。
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引用次数: 0
A Practical Q/V Band Smart Gateway Diversity Scheme for Very High Throughput Satellite Systems 一种实用的高吞吐量卫星系统Q/V波段智能网关分集方案
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35397
Xinhua Li, Xinrong Wang, Ruoke Li, Hongtao Wang, Jilin Li
Abstract. The use of Q/V band feeder links and Ka band user links is a feasible solution to support the next iteration of High Throughput Satellite. The gateway transmit diversity technique is a way to compensate the rain attenuation of Q/V band feeder links. This paper analyzes a practical combination scheme that combinates N-active (K=2) with N+1 diversity method in detail from the working principle, gateway handover status transfer process, evaluation of system availability and implementation complexity. Compared with the existing N+P scheme, the proposed scheme can provide higher system availability and more stable user experience under the condition of properly increasing the complexity of payload design. Compared with N-active scheme that has been reported, it is much easier to implement in engineering and more cost-effective. As a result, the combination scheme is an optimized solution based on a tradeoff between performance improvement and complexity of the payload.
摘要使用Q/V波段馈线链路和Ka波段用户链路是支持下一代高通量卫星的可行方案。网关发射分集技术是一种补偿Q/V馈线链路雨水衰减的方法。本文从工作原理、网关切换状态转移过程、系统可用性评估和实现复杂性等方面详细分析了一种实用的N-active (K=2)和N+1分集相结合的组合方案。与现有的N+P方案相比,在适当提高有效载荷设计复杂度的前提下,提出的方案可以提供更高的系统可用性和更稳定的用户体验。与已有报道的N-active方案相比,该方案更容易在工程中实现,且成本效益更高。因此,组合方案是基于性能改进和负载复杂性之间的权衡的优化解决方案。
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引用次数: 0
Research on the Semantic Architecture of Cultural Heritage Images Based on CIDOC CRM 基于cdoc CRM的文物图像语义架构研究
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35416
Xiaorui Zhou
An image is a visual medium that describes information about objects. The amount of data n in cultural heritage images is constantly amplified in the process of historical development and circulation. It has been significant challenges. The research is based on the international standard ontology reference model CIDOC CRM in the field of cultural heritage. It designs Semantic ontologies and specifications from the perspective of describing, correspondence paths and semantic architecture. The aim is to integrate and correlate the information of cultural heritage images with semantic information. And facilitate the integration and exchange of image information for traditional humanities and social science research. 1 Semantic Web and CIDOC CRM Massive digital information resources meet the needs of the public but gradually show the deficiencies in information representation and utilization. Tim Berners-Lee proposed the Semantic Web (Semantic Web) in 2000. As an extension of the current network, the entire Internet has become an information exchange medium, through basic element semantic links. In actual research, even the same image symbol has different semantics in different time. Only the integration of interdisciplinary research information to achieve the semantics that computers can understand and accelerate the sharing of knowledge and information. The ontology is an important technology to achieve semantic information retrieval. It describes the norms of concepts and the relationships between concepts. CIDOC CRM(CIDOC Conceptual Reference Model) is an object-oriented conceptual reference model developed by International Committee for Documentation. CIDOC CRM has become the international standard in the field of cultural heritage research in 2006, and it is the ontology of the domain of cultural heritage. It provides the semantic definitions and clarifications for the standard specification and description architecture of cultural heritage information, as an important information and reference model of the Semantic Web. Since 2006 it is official standard ISO 21127:2006. Current version is 6.26(June 2019, Published Version), including 98 entities, 168 Properties. It aims at providing the semantic definitions and clarifications needed to transform disparate, and localised information sources into a coherent global resource, be it within a larger institution, in intranets or on the Internet. [1] CIDOC CRM is widely recognized and applied internationally. For example, the "Digital Storage of Folk Music and Dance Culture" project funded by the Slovenian State in 2007, integrated the conceptual design of the CIDOC CRM model and FRBR model to
图像是描述物体信息的视觉媒介。文物影像中的数据量在历史发展和流通过程中不断被放大。这是巨大的挑战。本研究基于国际标准的文化遗产领域本体参考模型CIDOC CRM。从描述、对应路径和语义体系结构的角度设计语义本体和规范。其目的是将文化遗产图像信息与语义信息进行整合和关联。为传统的人文社会科学研究提供图像信息的整合与交流。海量的数字信息资源满足了公众的需求,但在信息表达和利用方面逐渐显现出不足。Tim Berners-Lee在2000年提出了语义网(Semantic Web)。作为当前网络的延伸,整个互联网已经成为一种信息交换的媒介,通过基本元素进行语义链接。在实际研究中,即使是同一图像符号,在不同的时间也有不同的语义。只有整合跨学科的研究信息,才能实现计算机所能理解的语义,加速知识和信息的共享。本体是实现语义信息检索的重要技术。它描述了概念的规范和概念之间的关系。CIDOC CRM(CIDOC概念参考模型)是由国际文献委员会开发的面向对象的概念参考模型。cdoc CRM于2006年成为文化遗产研究领域的国际标准,是文化遗产领域的本体。它为文化遗产信息的标准规范和描述体系结构提供了语义定义和澄清,是语义网的重要信息和参考模型。自2006年以来,它是官方标准ISO 21127:2006。当前版本为6.26(2019年6月,发布版本),包括98个实体,168个属性。它旨在提供语义定义和澄清,以便将不同的和本地化的信息源转换为一致的全球资源,无论是在较大的机构中,在内部网中还是在Internet上。[1] CIDOC CRM在国际上得到了广泛的认可和应用。例如,2007年由斯洛文尼亚国家资助的“民间音乐和舞蹈文化的数字存储”项目,将CIDOC CRM模型和FRBR模型的概念设计整合到
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引用次数: 0
A Fast Reduction and Denoising Method of Scattered Point Cloud Data Based on Spherical Model 基于球面模型的散点云数据快速降噪方法
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35449
Hao Zhu, Lei Liu
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引用次数: 0
An Improved Ant System Algorithm for the Ship Lock Arrangement Problem 船闸布置问题的改进蚁群算法
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35414
Ruijie Liu, D. He, Can Wang, Fang Qin
With the fast development of the inland waterway transport and the increasing of quantity ships, it is obviously exposed the deficiency of inland river ship locks navigation capacity. In order to improve the ship lock navigation capability, to ensure convenient, safe, stable and orderly navigation through the ship locks, this paper established the improved ant system algorithm for the ship lock arrangement, and implemented corresponding algorithm through further design. The calculation results show that the improved ant system algorithm is effective in application of the ship lock arrangement.
随着内河航运的快速发展和船舶数量的增加,内河船闸通航能力的不足明显暴露出来。为了提高船闸通航能力,保证通过船闸的方便、安全、稳定、有序航行,本文建立了改进的船闸布置蚂蚁系统算法,并通过进一步设计实现了相应的算法。计算结果表明,改进的蚁群算法在船闸布置中的应用是有效的。
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引用次数: 1
Design and Research of Key Technology of Coriolis Flowmeter’s Signal Processing System 科氏流量计信号处理系统关键技术的设计与研究
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35428
Peng Liu, Haiming Li, W. Zhibin, Shouzhen Zhang, Jiafeng Xu, Lei Gao
This paper innovatively presents DSP processorTMS320F28335 and CYCLONE series FPGA-EP3C16F484 as a dual-core processor to design Coriolis flowmeter’s signal processing system. This paper introduces key techniques of Coriolis flowmeter’s signal processing system in details from hardware to software, using phase difference based on DTFT with negative frequency and sliding DTFT to detect phase difference, then give then give Cumulative mass flow measurement results.
本文创新性地采用DSP处理器tms320f28335和CYCLONE系列FPGA-EP3C16F484作为双核处理器来设计科里奥利流量计的信号处理系统。本文从硬件到软件详细介绍了科里奥利流量计信号处理系统的关键技术,利用基于负频DTFT的相位差和滑动DTFT检测相位差,给出了累积质量流量的测量结果。
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引用次数: 0
Performance Evaluation of Aerospace Service Network Based on Entropy Weight Set-Pair-Analysis 基于熵权集对分析的航空服务网络性能评价
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35415
Mingliang Li, Sheng Wang, Yueying Xiang, Baiyan Wang
The Aerospace Service Network (ASN) provides communication of voices, video, data. Its performance is the key to satellite launching. In order to comprehensive assessment of Aerospace Service Network’s performance, this paper presented evaluation index based on network analysis data and calculated index weight by entropy method. Furthermore, a network performance evaluation model based on interval number Set-Pair-Analysis is established. The analysis and comparison showed that this model is objective and effective, and it provides decision support for network maintenance.
航空服务网络(ASN)提供语音、视频和数据通信。它的性能是卫星发射的关键。为了对航空航天服务网络的性能进行综合评价,提出了基于网络分析数据的评价指标,并采用熵值法计算指标权重。在此基础上,建立了基于区间数集对分析的网络性能评价模型。分析和比较表明,该模型客观有效,为网络维护提供决策支持。
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引用次数: 0
Evaluation of Product Texture Learning Platform Based On Fuzzy Evaluation 基于模糊评价的产品纹理学习平台评价
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35406
Yan Zhou, Naiwen Jiang, Qiang Li
In order to better design the product texture learning platform, this paper designs the user experience evaluation scheme and process of the product texture learning platform based on the fuzzy comprehensive evaluation method and user experience measurement. User experience evaluation is divided into three dimensions: performance measurement, visual style measurement and cognitive measurement. Quantitative data of user experience is obtained through task experiment and questionnaire. Based on the fuzzy comprehensive evaluation method, the fuzzy comprehensive evaluation factors are constructed, the evaluation index system of the first and second level indexes is calculated, the interface evaluation value of the product texture learning platform is obtained, and the interface design scheme with the highest evaluation value is selected.
为了更好地设计产品纹理学习平台,本文基于模糊综合评价法和用户体验测量,设计了产品纹理学习平台的用户体验评价方案和流程。用户体验评价分为三个维度:性能测量、视觉风格测量和认知测量。通过任务实验和问卷调查获得用户体验的定量数据。基于模糊综合评价方法,构建了模糊综合评价因子,计算了一、二级指标的评价指标体系,得到了产品纹理学习平台的界面评价值,选择了评价值最高的界面设计方案。
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引用次数: 0
Research on Seismic Signal Classification Based on Time-Frequency Map and Deep Learning 基于时频图和深度学习的地震信号分类研究
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35396
Jia Shi, Hanming Huang, Simin Xue, Binjun Li
Time frequency analysis is an effective method of processing non-stable signals, and this paper attempts to introduce the combination of time-frequency graph and deep learning neural network to study the classification of seismic signals. The short-term Fourier transformation, wavelet transformation and S transformation were used to obtain the timefrequency graph in seismic signal processing, and the good performance of image feature extraction ability was used by deep learning neural network, and Resnet50 was used to classify the results. The combination of timefrequency graph and deep learning neural network can effectively classify seismic signals, and from the classification accuracy, the combination of S transformation and Resnet50 network reached 89.82%, which is more superior.
时频分析是处理非稳定信号的有效方法,本文尝试引入时频图与深度学习神经网络相结合的方法来研究地震信号的分类。在地震信号处理中,采用短时傅里叶变换、小波变换和S变换获得时频图,利用深度学习神经网络良好的图像特征提取能力,并使用Resnet50对结果进行分类。时频图与深度学习神经网络的结合可以有效地对地震信号进行分类,从分类准确率上看,S变换与Resnet50网络的结合达到89.82%,更加优越。
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引用次数: 0
Study of the COVID-19’s Impact on the Online Customer Flow of Daily Commodities: A Big Data Approach 基于大数据的新冠肺炎疫情对日用商品网上客流影响研究
Pub Date : 2021-03-13 DOI: 10.12783/DTCSE/CCNT2020/35427
Runjie Pan, Chenzhuoer Li, Huiyu Xin, Tian Lan
The Covid-19 pandemic has hit the brick-and-mortar business hard, but how would it affect the online business? The research group collected big data on the customer flow of 1,000 daily commodities for two weeks before and after the pandemic outbreak from Taobao online shopping platform. It was found that: the Covid-19 has caused a significant negative impact on the online customer inflow, and its overall growth rate decreased. The products related to personal care, gifts and business stationery experienced the most significant decline, while daily necessities maintained a relatively stable customer flow, with little or no decline. In contrast, the products related to pandemic-control exhibited substantial growth in both customer flow and page views. Accordingly, the research group believes that developing contactless logistics and contactless production, building a time-space separation balanced supply system for pandemic-control products, and promoting altruistic social spending are necessary countermeasures to restore the negative impacts of the pandemic on online business.
新冠肺炎疫情对实体店造成了沉重打击,但对在线业务有何影响?研究小组收集了淘宝网购平台疫情爆发前后两周内1000种日常商品的客流大数据。研究发现:新冠肺炎疫情对在线客流量产生了显著的负面影响,整体增速有所下降。个人护理类、礼品类和商务文具类产品降幅最大,而日用品类保持相对稳定的客流量,几乎没有下降。相比之下,与流行病控制有关的产品在客流量和页面浏览量方面均有大幅增长。因此,研究小组认为,发展非接触式物流和非接触式生产,建立疫情防控产品的时空分离均衡供应体系,促进利他性社会消费,是恢复疫情对网络业务负面影响的必要对策。
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引用次数: 1
期刊
DEStech Transactions on Computer Science and Engineering
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