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Multi-channel DMA Based Design of Voltage Monitoring Using Synchronous Frequency Trace-Sampling Technique 基于多通道DMA的同步频率跟踪采样电压监测设计
现代电子技术(英文) Pub Date : 2020-12-14 DOI: 10.26549/met.v4i2.5692
Lei Yuan, Liangyu Lei, L. Xia, Liu Mingxiang, Cai Yueming, Jingtao Zhao, Mengyue Li
{"title":"Multi-channel DMA Based Design of Voltage Monitoring Using Synchronous Frequency Trace-Sampling Technique","authors":"Lei Yuan, Liangyu Lei, L. Xia, Liu Mingxiang, Cai Yueming, Jingtao Zhao, Mengyue Li","doi":"10.26549/met.v4i2.5692","DOIUrl":"https://doi.org/10.26549/met.v4i2.5692","url":null,"abstract":"In order to eliminate the influence of frequency change on real-time voltage acquisition, a low-cost solution of voltage monitoring was proposed using the multi-channel DMA synchronous frequency trace-sampling technique. In-chip resources of the designed voltage monitor were fully utilized in hardware design to reduce external devices. The MQX RTOS was used to perform the functional tasks flexibly and efficiently; especially the Ethernet communication applications and USB device connection were realized using its TCP/IP protocol stack and USB driver. In addition, to ensure the safety of electrical records, data statistics and alarm information management were also implemented through the management of the storage in FLASH. The test results show that the voltage monitor designed in this paper has the advantages of accurate measurement, strong resistance to frequency interference and low cost, and can be widely applied in the field of voltage monitoring in distribution networks.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43614715","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 the Application of Big Data and Artificial Intelligence Technology in Computer Network 大数据与人工智能技术在计算机网络中的应用研究
现代电子技术(英文) Pub Date : 2020-12-14 DOI: 10.26549/met.v4i2.6028
Hongfei Wang
{"title":"Research on the Application of Big Data and Artificial Intelligence Technology in Computer Network","authors":"Hongfei Wang","doi":"10.26549/met.v4i2.6028","DOIUrl":"https://doi.org/10.26549/met.v4i2.6028","url":null,"abstract":"With the continuous development of social economy, science and technology are also in continuous progress, relying on the Internet technology of big data era has come in an all-round way. On the basis of the development of cloud computing and Internet technology, artificial intelligence technology has emerged as the times require. It also has more advantages. Applying it to computer network technology can effectively improve the data processing efficiency and quality of computer network technology, and improve the convenience for people’s life and production. This paper studies and analyzes the practical application requirements of computer network, and discusses the application characteristics and timeliness of artificial intelligence technology.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43341279","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: 2
Product Promotion Prediction Model Based on Evaluation Information 基于评价信息的产品推广预测模型
现代电子技术(英文) Pub Date : 2020-07-22 DOI: 10.30564/jmser.v3i1.1953
Lijie Hou, Qixiu Kang
{"title":"Product Promotion Prediction Model Based on Evaluation Information","authors":"Lijie Hou, Qixiu Kang","doi":"10.30564/jmser.v3i1.1953","DOIUrl":"https://doi.org/10.30564/jmser.v3i1.1953","url":null,"abstract":"This paper mainly studies the impact of evaluation information on e-commerce platform on the future of products. Through natural language processing and rating, an evaluation model based on user rating and evaluation is defined to measure product quality. Among them, evaluations are differentiated: review sentiment coefficient (R) and review length (L).The evaluation model is:D=0.3*S+0.7*( 0.3*L+0.7*R). In order to predict the future reputation of products, based on the above evaluation model, time series is used to rank the products studied. Each customer purchases the product through Markov chain model, so as to predict the probability of future word-of-mouth spread of the product. Use TOPSIS method to select monthly sales, stars and comment sentiment coefficient as indicators. The comprehensive measurement method based on text and score is determined to predict whether the product is successfully promoted.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45118930","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 Method for Measuring LC Resonance Frequency by Impulse Response 一种利用脉冲响应测量LC谐振频率的方法
现代电子技术(英文) Pub Date : 2020-05-27 DOI: 10.26549/met.v4i1.3241
Mingwei Xu, Jiuxin Gong, Yuechang Shi
{"title":"A Method for Measuring LC Resonance Frequency by Impulse Response","authors":"Mingwei Xu, Jiuxin Gong, Yuechang Shi","doi":"10.26549/met.v4i1.3241","DOIUrl":"https://doi.org/10.26549/met.v4i1.3241","url":null,"abstract":"LC circuit resonance frequency measurement often requires the use of professional analysis instruments such as LCR meters, vector network analyzers, but currently such instruments on the market are expensive, and it is difficult for non-professional institute personnel to access. Here comes unnecessary trouble. In view of this situation, a test method for measuring the resonance frequency using only a digital storage oscilloscope is proposed. Using the impulse signal to obtain the system response, the response waveform period can be observed through the oscilloscope.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45707685","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
Time Prediction Through A Congested Road Section 拥挤路段的时间预测
现代电子技术(英文) Pub Date : 2020-05-27 DOI: 10.26549/met.v4i1.3249
Z. Cheng, Ziqi Wei, Xinhao Huang, Ying Li
{"title":"Time Prediction Through A Congested Road Section","authors":"Z. Cheng, Ziqi Wei, Xinhao Huang, Ying Li","doi":"10.26549/met.v4i1.3249","DOIUrl":"https://doi.org/10.26549/met.v4i1.3249","url":null,"abstract":"First, the cellular automaton was used to simulate a \"T\" junction, and the correlation analysis was performed by combining the traffic pattern and the corresponding data to obtain the reason for the inaccurate prediction time of the navigation software. The collected data is preprocessed to obtain the driving time of multiple road vehicles in a week, and this is used as the influencing factor. Reuse the collected information: the length of the intersection, the average speed of real-time vehicles at the intersection, and the length of the intersection. The first two processes of the three pre-processing processes are considered together to obtain a time-dependent factor. The correlation factors and the duration of the intersections are used to predict the results of neural network training. Based on the analysis and prediction of the data, the causes of urban traffic congestion are analyzed, and measures to reduce urban congestion are proposed.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44699066","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
Study on Cognitive Optical Network Structure and Self-optimization with the Application of Artificial Intelligence Technology 基于人工智能技术的认知光网络结构及自优化研究
现代电子技术(英文) Pub Date : 2020-05-27 DOI: 10.26549/met.v4i1.3100
S. Liang
{"title":"Study on Cognitive Optical Network Structure and Self-optimization with the Application of Artificial Intelligence Technology","authors":"S. Liang","doi":"10.26549/met.v4i1.3100","DOIUrl":"https://doi.org/10.26549/met.v4i1.3100","url":null,"abstract":"Cognitive optical network is the intermediate to combine artificial intelligence technology with network, and also the important network technology to promote network intelligence level constantly. In the paper, it analyzes the cognitive optical network structure with the application of artificial intelligence technology by starting from the basic conditions of cognitive network and cognitive optional network on the basis of fully understanding the connotation of cognitive network and cognitive optical network, and explores its self-governance functions, so as to better realize the self-optimization and self-configuration of network.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48769144","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
RTL Implementation of White Balance Algorithm Based on ZYNQ 基于ZYNQ的白平衡算法RTL实现
现代电子技术(英文) Pub Date : 2020-03-12 DOI: 10.26549/met.v3i2.3080
Zhou Jie, Li Keyao
{"title":"RTL Implementation of White Balance Algorithm Based on ZYNQ","authors":"Zhou Jie, Li Keyao","doi":"10.26549/met.v3i2.3080","DOIUrl":"https://doi.org/10.26549/met.v3i2.3080","url":null,"abstract":" In view of the common automatic white balance algorithm complexity is too high and the characteristics of the hardware to realize real-time. This paper combines gray world model and the advantage of white point detection algorithm, an adaptive control process is used to calculate gain coefficient and to picture the three-component white balance correction. On this basis to realize the automatic white balance based on the zynq RTL implementation of the algorithm. Compared with the traditional method, the cost of hardware is reduced, and the efficiency and flexibility of the algorithm are improved. Experimental results show that the algorithm can run smoothly and realize accurate correction of off-color images.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46543317","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
Rolling centrifuge repulsion Force Spacecraft 滚动离心机斥力航天器
现代电子技术(英文) Pub Date : 2018-10-26 DOI: 10.26549/MET.V2I3.1134
Y. Cao
{"title":"Rolling centrifuge repulsion Force Spacecraft","authors":"Y. Cao","doi":"10.26549/MET.V2I3.1134","DOIUrl":"https://doi.org/10.26549/MET.V2I3.1134","url":null,"abstract":"A Rolling Centrifugal Repulsion force UFO Introduction: Any object that rolls along a straight line will generate a centrifugal repulsive force that is away from the body being rolled, it is rolling centrifugal repulsive force. Utilizing this phenomenon, rolling the round ring along the edge of the UFO's disk will produce a constant lift, and then use the electric wheel technology to set the ballast rock at the bottom of the UFO to change the position of the ballast stone at the bottom of the chamber. In order to change the position of the center of gravity of the UFO, the purpose of driving the UFO can be achieved.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49019028","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
Design of Automatic cutting and coating collection System Based on Optical Fiber 基于光纤的自动切割和涂层采集系统的设计
现代电子技术(英文) Pub Date : 2018-10-26 DOI: 10.26549/met.v2i3.1132
Sheng Lin, Wujiu Bei, Jirong Sun
{"title":"Design of Automatic cutting and coating collection System Based on Optical Fiber","authors":"Sheng Lin, Wujiu Bei, Jirong Sun","doi":"10.26549/met.v2i3.1132","DOIUrl":"https://doi.org/10.26549/met.v2i3.1132","url":null,"abstract":"In order to meet the requirement of fiber splicing, the problem of low efficiency and manual operation is adopted. The device is designed and fabricated to meet the convenience and convenience of splicing and equipping in optical fber production. The simulation design and control system design of SolidEdge are discussed. At present, there isno such device in the market, and it has certain value in optical fber equipment.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42849445","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
Application of industrial robots in Stamping Automation Production line 工业机器人在冲压自动化生产线上的应用
现代电子技术(英文) Pub Date : 2018-10-26 DOI: 10.26549/MET.V2I3.1135
Qingshan Wang
{"title":"Application of industrial robots in Stamping Automation Production line","authors":"Qingshan Wang","doi":"10.26549/MET.V2I3.1135","DOIUrl":"https://doi.org/10.26549/MET.V2I3.1135","url":null,"abstract":"Since the reform and opening up, China's economy has developed rapidly and the society has been continuously improving. At the same time, in order to facilitate people's travel, the automobile industry has emerged, which has brought great convenience to people's production and life, and has also promoted the progress of society. In recent years, automation technology has been continuously researched and developed by people, and it has been widely used in people's production and life. In order to improve the effciency and modernization level of the automobile industry, the paper studies the application of industrial robots in the stamping automation production line, hoping to adapt to the new trend of economic development.","PeriodicalId":66865,"journal":{"name":"现代电子技术(英文)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47930570","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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