2007 8th International Conference on Electronic Measurement and Instruments最新文献_第2页

Building Technique of the Room Virtual Environment Based on VRML 基于VRML的房间虚拟环境构建技术

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350852

Deng Zhenjie, Jing Shu-xia

引用次数: 1

Application of Multisim8 in the Circuits Fault Simulation Multisim8在电路故障仿真中的应用

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351128

Lu Changhua, Wang Lingfei, Wang Yong, L. Dawei

引用次数: 0

Upsetting Machine Control System Based on the Embedded Technology 基于嵌入式技术的镦粗机控制系统

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350886

Wu Liming, Lai Nanhui, W. Guitang, Chen Jingyu

{"title":"Upsetting Machine Control System Based on the Embedded Technology","authors":"Wu Liming, Lai Nanhui, W. Guitang, Chen Jingyu","doi":"10.1109/ICEMI.2007.4350886","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350886","url":null,"abstract":"In this paper, based on the electrothermal upsetting processing method, the process of valve upsetting is divided into two steps: initial upsetting and formal upsetting. Four parameters, including 1.hearting current; 2.press; 3.velocity; 4.material, which influence the manufacture process in evidence, is mainly discussed. Analyzing defect and deficiency of tradition processing, the article puts forward to a controlling strategy with iteration technique and designed an embedded valve upset forging microcomputer control system. The electrothermal upsetting control system based on embedded technology stores the experience and technique of local worker, optimizes the tradition processing by using ARM S3C2410X chip. During the process, controlling parameters such as press, displacement and voltage are real-time monitored. Signal feeds back to system by sensors to realize the closed loop controlling on-line self-study function. And the technics parameters and the controlling process will display on the HMI (Human Machine Interface). Using the system, the quality and efficiency of the valve manufacture are improved, and the robustness gets stronger. The system has been applied in enterprises. Comparing with the tradition one, the automaticity in manufacture is improved, and the rejection rate is reduced. It also benefits the informationization of production of enterprise.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"82 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124782650","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

TDC Based Radar Signal Reconstruction from Periodic Nonuniform Samples 基于TDC的周期性非均匀样本雷达信号重构

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350540

Ma Botao, Zhu Yilong, Fan Hongqi

引用次数: 4

Information Fusion Fault Prediction Method Based on Multi-Class Support Vector Machines

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350918

Kang Jian, Zuo Xian-zhang, Tan Liwei, Wang Changlong

{"title":"Information Fusion Fault Prediction Method Based on Multi-Class Support Vector Machines","authors":"Kang Jian, Zuo Xian-zhang, Tan Liwei, Wang Changlong","doi":"10.1109/ICEMI.2007.4350918","DOIUrl":"https://doi.org/10.1109/ICEMI.2007.4350918","url":null,"abstract":"In this paper, a novel fault prediction method is proposed for complicated equipments, which extracts features by energy comparing method and realizes pattern recognition by multi-class support vector machines (SVM). Firstly, signal features are extracted by energy comparing method, which combines multi-resolution analysis of wavelet packets and energy spectrum. Through three scales wavelet packet decomposition, it takes energy as the feature vector of element, and establishes corresponding relations between feature and fault state. Then, using the experimental data and Riemannian geometry analysis of kernel function, an improved RBF is obtained as a new kernel function for the multi-class SVM. Conformal function of the kernel function is expressed by Euclidean distance in improved RBF, which can decrease the number of support vectors and reduces the workload, and it can fit the actual problems nicely. Finally, the multi-class SVM is adopted to realize fault information character-level fusion and pattern recognition for complicated equipments. Samples of some kinds of engine fault prediction are verified, and the result proves this method is effective and commendable.","PeriodicalId":354395,"journal":{"name":"2007 8th International Conference on Electronic Measurement and Instruments","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124975705","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 Access Technology of Storage Data in Heterogeneous Network 异构网络中存储数据的访问技术研究

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351030

Zhang Huili, Ren Wen-xia, Lv Wenzhe, Gao Guanwang, Yue Yong-zhe

引用次数: 0

Application of DDS Based on DSP in Rubidium Atomic Frequency Standard 基于DSP的DDS在铷原子频标中的应用

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4351291

Wang Yutai, Li Nianqiang, Zhang Lu

引用次数: 0

Research on Quality Evaluation and Fault Forecast System for Complicated Equipments 复杂设备质量评价与故障预测系统研究

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350420

Cao Lijun, Hu Huibin, Shao Xinjie, Tian Guang

引用次数: 2

Expert System for Radar Equipment Faults Diagnosis Based on Rough Set Theory 基于粗糙集理论的雷达设备故障诊断专家系统

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350955

Dai Jianpeng, Wei Zhensheng, Wang Chunping, Zhang Guangyuan

引用次数: 10

Design of the Fault Diagnosis System of Generator Rotor Winding Inter-Turn Short Circuit Based on Virtual Instrument 基于虚拟仪器的发电机转子绕组匝间短路故障诊断系统设计

2007 8th International Conference on Electronic Measurement and Instruments Pub Date : 2007-10-22 DOI: 10.1109/ICEMI.2007.4350983

Wan Shuting, Tong Haixia

引用次数: 3