According to the fact that the existing reliability prediction technology cannot well reflect the effect of processes under different operational conditions on reliability due to neglecting changes of reliability and failure rate with using time, a practical reliability prediction analysis model considering various operating conditions of the components of machining center is proposed by combining the grey system theory and the GO methodology. This method is used in reliability prediction of hydraulic system of tray automatic exchange device (TAED) in machining center. Firstly, through a systematical analysis of hydraulic system of TAED in machining center, its basic structure model is summarized, and the model of GO chart for the hydraulic system is established. Then, the grey dynamic prediction for the hydraulic system is derived based on GM(1, 1) model combining the GO methodology. Finally, the availability and precision of this method in the analysis and reliability prediction of the hydraulic system of TAED in machining center is verified by comparing the calculated result of this method with that of the traditional static GO methodology and the FTA. This approach provides a theoretical basis for the prevention of failures of the hydraulic system of TAED in machining center, the improvement of the system reliability and security, and the development of security controls.
{"title":"Reliability Prediction of Machining Center using Grey System Theory and GO Methodology","authors":"G. Zhang, Jian Liu, Yue Li","doi":"10.1109/ICDMA.2013.232","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.232","url":null,"abstract":"According to the fact that the existing reliability prediction technology cannot well reflect the effect of processes under different operational conditions on reliability due to neglecting changes of reliability and failure rate with using time, a practical reliability prediction analysis model considering various operating conditions of the components of machining center is proposed by combining the grey system theory and the GO methodology. This method is used in reliability prediction of hydraulic system of tray automatic exchange device (TAED) in machining center. Firstly, through a systematical analysis of hydraulic system of TAED in machining center, its basic structure model is summarized, and the model of GO chart for the hydraulic system is established. Then, the grey dynamic prediction for the hydraulic system is derived based on GM(1, 1) model combining the GO methodology. Finally, the availability and precision of this method in the analysis and reliability prediction of the hydraulic system of TAED in machining center is verified by comparing the calculated result of this method with that of the traditional static GO methodology and the FTA. This approach provides a theoretical basis for the prevention of failures of the hydraulic system of TAED in machining center, the improvement of the system reliability and security, and the development of security controls.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121581934","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}
In recent years, various disasters have taken place frequently, and then highway blocking has happened from time to time. In order to be open to traffic as soon as possible, the project management should take the corresponding measures not consistent with the normal construction. This paper mainly studied the project management of urgent repair of highway after disaster(This paper uses "this kind of project"), analyzed the characteristics of urgent repair of highway after disaster, main tasks of project management, and proposed the measures to improve the ability and level of project management of this kind of project based on the actual situations and project management experience, so as to perfect the this kind of project and create greater benefits for people.
{"title":"Management Essentials for Urgent Repair of Highway after Disaster -- Taking a Tunnel of a Highway as an Example","authors":"Jin Hu, Xu Feng, Jian Wu, Jiaying Jiang","doi":"10.1109/ICDMA.2013.179","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.179","url":null,"abstract":"In recent years, various disasters have taken place frequently, and then highway blocking has happened from time to time. In order to be open to traffic as soon as possible, the project management should take the corresponding measures not consistent with the normal construction. This paper mainly studied the project management of urgent repair of highway after disaster(This paper uses \"this kind of project\"), analyzed the characteristics of urgent repair of highway after disaster, main tasks of project management, and proposed the measures to improve the ability and level of project management of this kind of project based on the actual situations and project management experience, so as to perfect the this kind of project and create greater benefits for people.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128820168","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}
Unified power flow control with fault current limiting (UPFC-FCL) is a novel FACTS device which can protect the series converter from being destroyed by fault current of the system. In this paper, man-machine interface (MMI) based on NI Measurement Studio with Microsoft Visual Studio is proposed, which can monitor the status and adjust the parameters of UPFC-FCL when it is running. The data is transferred between MMI and controller via USB. The test results indicate that the MMI illustrated in this paper has a friendly interface with rich functions such as status monitor, running control, fault feedback, operation record and data analysis.
{"title":"Design and Development of Man-Machine Interface for UPFC-FCL","authors":"Shen Chen, L. Wentao, Jiang Dao-zhuo, Wang Yufen","doi":"10.1109/ICDMA.2013.95","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.95","url":null,"abstract":"Unified power flow control with fault current limiting (UPFC-FCL) is a novel FACTS device which can protect the series converter from being destroyed by fault current of the system. In this paper, man-machine interface (MMI) based on NI Measurement Studio with Microsoft Visual Studio is proposed, which can monitor the status and adjust the parameters of UPFC-FCL when it is running. The data is transferred between MMI and controller via USB. The test results indicate that the MMI illustrated in this paper has a friendly interface with rich functions such as status monitor, running control, fault feedback, operation record and data analysis.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126640589","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}
With combination of satellite HJ-1 multispectral CCD data and synchronous ground monitoring data on water quality, combining the visible light red band (select the one that has a high correlation with measured chlorophyll-a concentration) and near-infrared band, this paper takes Band4/Band3 as arguments, establishing linear model and multinomial model respectively, furthermore makes a comparative analysis of them. The results show that the band combination method for inversion is feasible, based on the comparison of the two models, it is concluded that polynomial model has better effect. And by using ArcGIS software and polynomial modelmakes chlorophyll-a concentration profile.
{"title":"Quantitative Retrieval of Chlorophyll-a Concentration of Taihu Lake Based on Satellite HJ-1Multispectral Data","authors":"Qi Wang, W. Meng, Yunfeng Ma, Xin Ke, Xiaomin Hu","doi":"10.1109/ICDMA.2013.224","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.224","url":null,"abstract":"With combination of satellite HJ-1 multispectral CCD data and synchronous ground monitoring data on water quality, combining the visible light red band (select the one that has a high correlation with measured chlorophyll-a concentration) and near-infrared band, this paper takes Band4/Band3 as arguments, establishing linear model and multinomial model respectively, furthermore makes a comparative analysis of them. The results show that the band combination method for inversion is feasible, based on the comparison of the two models, it is concluded that polynomial model has better effect. And by using ArcGIS software and polynomial modelmakes chlorophyll-a concentration profile.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125987740","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}
In order to improve the teaching quality, promote students' learning ability, with students as the center, expand the courses of teaching design. Theory teaching with traditional writing on blackboard, auxiliary electronic courseware demo, emphasizes the key points and difficulties in study, Intuitive demonstration EDA simulation, virtual environment to verify theoretical content, The actual connection circuit operation experiments in the experimental box, combined with the actual environmental performance index test.
{"title":"The Teaching Design of Analog Electronic Technology Information on the Basis of Professional Courses","authors":"Gong Li","doi":"10.1109/ICDMA.2013.379","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.379","url":null,"abstract":"In order to improve the teaching quality, promote students' learning ability, with students as the center, expand the courses of teaching design. Theory teaching with traditional writing on blackboard, auxiliary electronic courseware demo, emphasizes the key points and difficulties in study, Intuitive demonstration EDA simulation, virtual environment to verify theoretical content, The actual connection circuit operation experiments in the experimental box, combined with the actual environmental performance index test.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125630574","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}
Due to special imaging mechanism, shadow contour of SAR image is not as clear as that of optical image. Aiming at target recognition, this paper presents a SAR image segmentation method based on Partial Differential De-noising and Marker-Controlled, and carries out automatic target recognition on result of image segmentation. Experimental results show that, using the method of this paper, segmentation result of SAR image can classify target effectively.
{"title":"SAR Automatic Target Recognition Based on Shadow Contour","authors":"Yin Kuiying, Jin Lin, Zhang Changchun, Jiang Jin","doi":"10.1109/ICDMA.2013.279","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.279","url":null,"abstract":"Due to special imaging mechanism, shadow contour of SAR image is not as clear as that of optical image. Aiming at target recognition, this paper presents a SAR image segmentation method based on Partial Differential De-noising and Marker-Controlled, and carries out automatic target recognition on result of image segmentation. Experimental results show that, using the method of this paper, segmentation result of SAR image can classify target effectively.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"11 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115478141","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}
Expressway traffic accidents seriously threaten the personal property security. And emergency resources are the basis and premise of accident rescue. Thus the emergency resource demand prediction of expressway is of great significance. The influence factors of emergency resource demand is analyzed in this paper, and neural network programming is carried out on the highway emergency resource demand. Finally, combining trained of neural network and case analysis, it achieves emergency resource demand projections for the new case of the emergency center. The results show that the BP neural network can form the inherent law of highway emergency resource demand after training, self-learning and self-adaptation, and the results can meet the prediction error precision. So the results of neural network prediction can provide scientific allocation of expressway emergency resource with reasonable reference.
{"title":"Expressway Emergency Resources Demand Forecasting Based on Neural Network","authors":"Liu Jin","doi":"10.1109/ICDMA.2013.140","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.140","url":null,"abstract":"Expressway traffic accidents seriously threaten the personal property security. And emergency resources are the basis and premise of accident rescue. Thus the emergency resource demand prediction of expressway is of great significance. The influence factors of emergency resource demand is analyzed in this paper, and neural network programming is carried out on the highway emergency resource demand. Finally, combining trained of neural network and case analysis, it achieves emergency resource demand projections for the new case of the emergency center. The results show that the BP neural network can form the inherent law of highway emergency resource demand after training, self-learning and self-adaptation, and the results can meet the prediction error precision. So the results of neural network prediction can provide scientific allocation of expressway emergency resource with reasonable reference.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115703690","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}
Groundwater samples were collected from 87 monitoring wells in and around a paper wastewater-irrigated area. The monitored parameters include pH, COD, Cl-, SO42-, F-, TDS, TH, NH4-N, NO3-N and NO2-N. Water quality variation was examined by graphical approach and R mode cluster analysis. The study shows that groundwater in the study area has been contaminated. Most physiochemical parameters usually have high variations in concentration. Groundwater pollution in the forest area is mainly caused by CODMn, NO2-N, NO3-N and F-, while groundwater pollution in the alluvial plain may be attributed to excess TDS, TH, F- and NO2-N. Elevated concentrations of CODMn, NO2-N, NO3-N is due to anthropogenic intervention, while TDS, TH, pH and Fmay be influenced more by natural processes.
{"title":"Groundwater Pollution in and Around a Paper Wastewater-Irrigated Area, Northwest China","authors":"Jianhua Wu, Peiyue Li, H. Qian, Jie Chen","doi":"10.1109/ICDMA.2013.154","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.154","url":null,"abstract":"Groundwater samples were collected from 87 monitoring wells in and around a paper wastewater-irrigated area. The monitored parameters include pH, COD, Cl<sup>-</sup>, SO<sub>4</sub><sup>2-</sup>, F-, TDS, TH, NH<sub>4</sub>-N, NO<sub>3</sub>-N and NO<sub>2</sub>-N. Water quality variation was examined by graphical approach and R mode cluster analysis. The study shows that groundwater in the study area has been contaminated. Most physiochemical parameters usually have high variations in concentration. Groundwater pollution in the forest area is mainly caused by CODMn, NO<sub>2</sub>-N, NO<sub>3</sub>-N and F<sup>-</sup>, while groundwater pollution in the alluvial plain may be attributed to excess TDS, TH, F<sup>-</sup> and NO<sub>2</sub>-N. Elevated concentrations of COD<sub>Mn</sub>, NO<sub>2</sub>-N, NO<sub>3</sub>-N is due to anthropogenic intervention, while TDS, TH, pH and Fmay be influenced more by natural processes.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121793951","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}
The ordered and unblocked information flow is an essential characteristic and goal for smart grid whilst the adapter is a key technology for heterogeneous system integration and information exchange. With the rapid development of IEC 61968 and Information Exchange Bus (IEB), the current adapter implementation profile can't fulfill the requirement of inter-operation in smart distribution grid. This paper illustrates the concept of adapter and its role in information exchange model of IEC 61968 standard, and proposes a six-layer function framework for IEB and heterogeneous systems. In the facet of heterogeneous systems, it proposes the three-layer function framework and implementation profile including adaption for web services, adaptation for business interfaces and adaption for IEC 61968 messages. In the facet of IEC 61968 standard based IEB, it proposes another three-layer function framework and implementation profile consist of adaptation for asynchronous exchange pattern, adaptation for plug & play and adaption for information flow control.
{"title":"Research on IEC 61968 Standard Oriented Function Framework of Adapter in Smart Distribution Grid","authors":"Guangxian Lv, Jianghe Zhao, Jian Su, D. Zhang","doi":"10.1109/ICDMA.2013.249","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.249","url":null,"abstract":"The ordered and unblocked information flow is an essential characteristic and goal for smart grid whilst the adapter is a key technology for heterogeneous system integration and information exchange. With the rapid development of IEC 61968 and Information Exchange Bus (IEB), the current adapter implementation profile can't fulfill the requirement of inter-operation in smart distribution grid. This paper illustrates the concept of adapter and its role in information exchange model of IEC 61968 standard, and proposes a six-layer function framework for IEB and heterogeneous systems. In the facet of heterogeneous systems, it proposes the three-layer function framework and implementation profile including adaption for web services, adaptation for business interfaces and adaption for IEC 61968 messages. In the facet of IEC 61968 standard based IEB, it proposes another three-layer function framework and implementation profile consist of adaptation for asynchronous exchange pattern, adaptation for plug & play and adaption for information flow control.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121213899","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}
Global climate changes and human activities have a profound impact on disaster environment and formation mechanism of waterlogging disaster, exacerbating the uncertainty of waterlogging disaster and highlighting complexity and difficulty coping with the water disasters of farmland. A large number of researches on risk assessment and prediction of flood disaster have been carried out at home and abroad, and this study concluded the research progress of this direction in recent years in terms of six aspects including the connotation of disaster risk, comprehensive assessment of flood risk based on index system, the numerical models of flood disaster risk assessment, the regularity analysis of different carriers, the influence of environment changes on flood disaster risk and uncertainty of flood disaster and finally analyzed problems in the research and the future directions of development.
{"title":"Progress in Flood Risk Assessment at Regional Scale","authors":"Chen Hao-rui, Wang Shao-li","doi":"10.1109/ICDMA.2013.223","DOIUrl":"https://doi.org/10.1109/ICDMA.2013.223","url":null,"abstract":"Global climate changes and human activities have a profound impact on disaster environment and formation mechanism of waterlogging disaster, exacerbating the uncertainty of waterlogging disaster and highlighting complexity and difficulty coping with the water disasters of farmland. A large number of researches on risk assessment and prediction of flood disaster have been carried out at home and abroad, and this study concluded the research progress of this direction in recent years in terms of six aspects including the connotation of disaster risk, comprehensive assessment of flood risk based on index system, the numerical models of flood disaster risk assessment, the regularity analysis of different carriers, the influence of environment changes on flood disaster risk and uncertainty of flood disaster and finally analyzed problems in the research and the future directions of development.","PeriodicalId":403312,"journal":{"name":"2013 Fourth International Conference on Digital Manufacturing & Automation","volume":"05 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127194495","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}
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