L. Yuan, Juping Gu, Yiming Xu, Yangyang Miao, Tianbo Qiu, Yuchen Jin
In view of the illumination changes and the deformations of objects in the traffic environment, a template update object tracking algorithm which is based on the fusion of color and texture features is proposed. Under the framework of traditional algorithm, the algorithm not only takes the weighted color histogram to describe the object's color, but also fuses LTP texture operator. Finally, the object was described by the weighted fusion of both and the template was set up to update the weights of different templates. The contrast tracking experiments were carried out under the environment of some illumination changes and the deformations of objects. And then the robustness of the algorithm was verified on the premise of the real-time performance.
{"title":"A Template Update Cam Shift Algorithm Based on LTP Texture","authors":"L. Yuan, Juping Gu, Yiming Xu, Yangyang Miao, Tianbo Qiu, Yuchen Jin","doi":"10.1109/CSMA.2015.41","DOIUrl":"https://doi.org/10.1109/CSMA.2015.41","url":null,"abstract":"In view of the illumination changes and the deformations of objects in the traffic environment, a template update object tracking algorithm which is based on the fusion of color and texture features is proposed. Under the framework of traditional algorithm, the algorithm not only takes the weighted color histogram to describe the object's color, but also fuses LTP texture operator. Finally, the object was described by the weighted fusion of both and the template was set up to update the weights of different templates. The contrast tracking experiments were carried out under the environment of some illumination changes and the deformations of objects. And then the robustness of the algorithm was verified on the premise of the real-time performance.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115702388","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 MANETs, link failures are caused frequently due to node's mobility and use of unreliable wireless channels for data transmission. Multipath routing strategy can cope with the problem of the traffic overloads while balancing the network resource consumption. This article proposes an improved approach named DNDR (Dual Node-Disjoint Paths Routing) to enhance the network reliability and robustness. The scheme combines the characteristics of reversing AODV (R-AODV) strategy and On-Demand Node-Disjoint Multipath Routing protocol to determine available node-disjoint routes with minimum routing control overhead, meanwhile, it adds the backup routing strategy to make the process of data salvation more efficient in case of link failure. The results obtained through various simulations show the effectiveness of the proposed scheme in terms of route availability, control overhead and packet delivery ratio.
{"title":"A Node-Disjoint Multipath Routing Protocol in MANETs","authors":"Yang Yu, M. Liang","doi":"10.1109/CSMA.2015.28","DOIUrl":"https://doi.org/10.1109/CSMA.2015.28","url":null,"abstract":"In MANETs, link failures are caused frequently due to node's mobility and use of unreliable wireless channels for data transmission. Multipath routing strategy can cope with the problem of the traffic overloads while balancing the network resource consumption. This article proposes an improved approach named DNDR (Dual Node-Disjoint Paths Routing) to enhance the network reliability and robustness. The scheme combines the characteristics of reversing AODV (R-AODV) strategy and On-Demand Node-Disjoint Multipath Routing protocol to determine available node-disjoint routes with minimum routing control overhead, meanwhile, it adds the backup routing strategy to make the process of data salvation more efficient in case of link failure. The results obtained through various simulations show the effectiveness of the proposed scheme in terms of route availability, control overhead and packet delivery ratio.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121270903","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}
Wall thickness has a direct impact on the appearance, performance and cost of a part, wall thickness analysis is important (sometimes essential) to examine and improve the manufacturability of a part after the design is complete. The current method of wall thickness analysis in pro/Engineering environment is to establish equally spaced cross-sections in different directions, which is inefficient and can be error prone. This paper details a method to analysis wall thickness automatically, which includes format conversion (from prt to stl), octree decomposition and ray-tracing to obtain thickness values, color rendering according to thickness values, this method provides an overall intuitive display of the model and improves the thickness analysis efficiency.
{"title":"A Method for Model Thickness Analysis in Pro/E Environment","authors":"Zhen Chai, Xu Zhang, Haoqi Wang, Yu-Yan Zhang","doi":"10.1109/CSMA.2015.77","DOIUrl":"https://doi.org/10.1109/CSMA.2015.77","url":null,"abstract":"Wall thickness has a direct impact on the appearance, performance and cost of a part, wall thickness analysis is important (sometimes essential) to examine and improve the manufacturability of a part after the design is complete. The current method of wall thickness analysis in pro/Engineering environment is to establish equally spaced cross-sections in different directions, which is inefficient and can be error prone. This paper details a method to analysis wall thickness automatically, which includes format conversion (from prt to stl), octree decomposition and ray-tracing to obtain thickness values, color rendering according to thickness values, this method provides an overall intuitive display of the model and improves the thickness analysis efficiency.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123292575","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}
A. Guo, Dong Yu, Y. Hu, Shuai Wang, Tao An, Tengfei Zhang
Cyber-physical system theory in recent years generates a great impact on modern industry. Nevertheless, traditional sensor network systems fail to meet requirements of CPS system due to its lack of real-time, synchronization and tolerance of hybrid-system qualities. In this article, a new data-collection prototype system has been thrown light upon which could meet such qualities to some extent. Hardware, software and algorithms concerning this topic shall be explained and experiment shall be made to testify those qualities.
{"title":"Design and Implementation of Data Collection System Based on CPS Model","authors":"A. Guo, Dong Yu, Y. Hu, Shuai Wang, Tao An, Tengfei Zhang","doi":"10.1109/CSMA.2015.34","DOIUrl":"https://doi.org/10.1109/CSMA.2015.34","url":null,"abstract":"Cyber-physical system theory in recent years generates a great impact on modern industry. Nevertheless, traditional sensor network systems fail to meet requirements of CPS system due to its lack of real-time, synchronization and tolerance of hybrid-system qualities. In this article, a new data-collection prototype system has been thrown light upon which could meet such qualities to some extent. Hardware, software and algorithms concerning this topic shall be explained and experiment shall be made to testify those qualities.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"366 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122151173","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 rectangular pad is widely used in the hydrostatic guide rail, but hydrostatic guide rail in conditions for the emergence of the partial load or deformation factors, makes the hydrostatic guide rail in tilted state of bearing capacity of oil pad has a certain influence. This micro element method to establish hydrostatic guide rail are based on the actual working conditions of Reynolds equation, and then based on the finite difference method to solve the single rectangular pad under uneven oil film thickness of oil film pressure distribution, oil pad oil cavity pressure, as well as the carrying capacity of changing with the guide rail inclination. Through analysis shows that oil cavity pressure and oil pad bearing capacity with larger guide angle, both of them show a trend of slow decline.
{"title":"Hydrostatic Guide Rail in Tilt State Oil Pad Bearing Performance Analysis","authors":"Yongsheng Zhao, Yan Li","doi":"10.1109/CSMA.2015.71","DOIUrl":"https://doi.org/10.1109/CSMA.2015.71","url":null,"abstract":"The rectangular pad is widely used in the hydrostatic guide rail, but hydrostatic guide rail in conditions for the emergence of the partial load or deformation factors, makes the hydrostatic guide rail in tilted state of bearing capacity of oil pad has a certain influence. This micro element method to establish hydrostatic guide rail are based on the actual working conditions of Reynolds equation, and then based on the finite difference method to solve the single rectangular pad under uneven oil film thickness of oil film pressure distribution, oil pad oil cavity pressure, as well as the carrying capacity of changing with the guide rail inclination. Through analysis shows that oil cavity pressure and oil pad bearing capacity with larger guide angle, both of them show a trend of slow decline.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124552631","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 structure of two-wheeled self-balancing robot is equivalent to the combination of the linear inverted pendulum and wheeled mobile robot. But compared to the linear inverted pendulum, two-wheeled self-balancing robot can move freely and turn flexibly. So the system is more complex and difficult to control. As the two-wheeled self-balancing robot is a high order and multi variable system, PID controller based on output feedback can't have a satisfactory control effect. The LQR control strategy is implemented, and the weight matrix Q and R of the LQR controller are optimized by using multi-population genetic ideas. Taking two wheeled self balancing robot as the test platform, the two control modes of LQR and PID are used to carry out experiments and analysis. In the simulation experiments of balance control, position control and speed control, the LQR controller has a better performance in the system's robustness and fast response.
{"title":"Research on Control Strategy of Two-Wheeled Self-Balancing Robot","authors":"Y. Gong, Xiao Wu, Huijiao Ma","doi":"10.1109/CSMA.2015.63","DOIUrl":"https://doi.org/10.1109/CSMA.2015.63","url":null,"abstract":"The structure of two-wheeled self-balancing robot is equivalent to the combination of the linear inverted pendulum and wheeled mobile robot. But compared to the linear inverted pendulum, two-wheeled self-balancing robot can move freely and turn flexibly. So the system is more complex and difficult to control. As the two-wheeled self-balancing robot is a high order and multi variable system, PID controller based on output feedback can't have a satisfactory control effect. The LQR control strategy is implemented, and the weight matrix Q and R of the LQR controller are optimized by using multi-population genetic ideas. Taking two wheeled self balancing robot as the test platform, the two control modes of LQR and PID are used to carry out experiments and analysis. In the simulation experiments of balance control, position control and speed control, the LQR controller has a better performance in the system's robustness and fast response.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"4 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114030267","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}
This paper focuses on eliminating data redundancy of covering information system. Firstly, we enumerate several usual covering reduction methods and analysis their contact among them. Secondly, we take the attributes value of explicit and implicit value into consider, and we obtain a network topology (shorthand as NT) of covering information system. Through NT, we turn the covering information system into information system. Thirdly, we obtain the attribute reduction of information system through the "effect rough degree", (shorthand as NT ERD-RM). Finally, we proved the particle of the methods combined with an example. Our study can enrich the existing attribute reduction theories and methods to a certain extent.
{"title":"A New Approach to Attribute Reduction of Covering Information System","authors":"Fachao Li, Jinning Yang","doi":"10.1109/CSMA.2015.43","DOIUrl":"https://doi.org/10.1109/CSMA.2015.43","url":null,"abstract":"This paper focuses on eliminating data redundancy of covering information system. Firstly, we enumerate several usual covering reduction methods and analysis their contact among them. Secondly, we take the attributes value of explicit and implicit value into consider, and we obtain a network topology (shorthand as NT) of covering information system. Through NT, we turn the covering information system into information system. Thirdly, we obtain the attribute reduction of information system through the \"effect rough degree\", (shorthand as NT ERD-RM). Finally, we proved the particle of the methods combined with an example. Our study can enrich the existing attribute reduction theories and methods to a certain extent.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128030294","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}
Traditional guidance laws are designed based on Lyapunov theorem. They will guide the line of sight (LOS) angular rate to converge to zero when time approaches infinity. In this paper, guidance laws with finite time convergence are proposed in terms of finite time stability theory of nonlinear control systems. It is proved that the LOS angular rate will converge to zero before the final guidance ends with the designed guidance laws. Simulation results show that the guidance laws are highly effective.
{"title":"Guidance Law Design Based on Finite Time Convergence","authors":"Yanli Yang, Lihua Chen, Zhiguo Liu, Guoliang Zhang","doi":"10.1109/CSMA.2015.55","DOIUrl":"https://doi.org/10.1109/CSMA.2015.55","url":null,"abstract":"Traditional guidance laws are designed based on Lyapunov theorem. They will guide the line of sight (LOS) angular rate to converge to zero when time approaches infinity. In this paper, guidance laws with finite time convergence are proposed in terms of finite time stability theory of nonlinear control systems. It is proved that the LOS angular rate will converge to zero before the final guidance ends with the designed guidance laws. Simulation results show that the guidance laws are highly effective.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125451456","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 geometric design of blades' profiles is a fundamental issue in turbo machinery industry. A parametric geometry representation method for blades' profiles design is presented. Unlike traditional method, this method generates profiles from the view of controlling the variation angle of camber line from leading edge to trailing edge along chord line direction, which can connect the profiles' geometric design parameters with flow passage trend closely. A leading trailing edge design method is also presented. It can maintain continuous curvature at the junction point between leading trailing edge with main blade. Ultimately, a blade modeling system has been developed based on this method and a detailed example is given.
{"title":"A Parametric Geometry Representation Method for Blades' Profiles Design","authors":"Jiong Yang, T. Ning, P. Xi","doi":"10.1109/CSMA.2015.74","DOIUrl":"https://doi.org/10.1109/CSMA.2015.74","url":null,"abstract":"The geometric design of blades' profiles is a fundamental issue in turbo machinery industry. A parametric geometry representation method for blades' profiles design is presented. Unlike traditional method, this method generates profiles from the view of controlling the variation angle of camber line from leading edge to trailing edge along chord line direction, which can connect the profiles' geometric design parameters with flow passage trend closely. A leading trailing edge design method is also presented. It can maintain continuous curvature at the junction point between leading trailing edge with main blade. Ultimately, a blade modeling system has been developed based on this method and a detailed example is given.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125638394","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}
Yue Wang, Gang Zhou, Feiyang Tian, Yu Nan, Jiangtao Ma
Traditional Relation Extraction (RE) trains individual extractors for pre-defined relations. Open Relation Extraction (ORE) can eschew domain-specific training data, tackle an unbounded number of relations, and scale up to massive and heterogeneous corpus such as the web. However, It is difficult to process micro log texts: the genre is noisy, utterances are very short, and texts have little context. As such, conventional RE approaches fail when faced with micro log and other Web texts. In this paper, we present a gravitation-based Chinese ORE approach to extracting relations between entities by using the idea of the law of universal gravitation. GCORE produces heuristic rules to extract entity relations, and calculates a confidence score for each relational tuple, which is directly proportional to the product of the frequency of entity pairs and the frequency of relation words, and inversely proportional to the square of the distance between the relation word and the candidate entity pair. The confidence score can be used to show the reliability of relational tuples. The higher the score, the more reliable the candidate tuple is, and vice versa. The experimental evaluation over two data sets from ZORE demonstrates the correctness and effectiveness of our proposed approach, and empirical results on Weibo texts show the universality of GCORE.
{"title":"GCORE: A Gravitation-Based Approach for Chinese Open Relation","authors":"Yue Wang, Gang Zhou, Feiyang Tian, Yu Nan, Jiangtao Ma","doi":"10.1109/CSMA.2015.24","DOIUrl":"https://doi.org/10.1109/CSMA.2015.24","url":null,"abstract":"Traditional Relation Extraction (RE) trains individual extractors for pre-defined relations. Open Relation Extraction (ORE) can eschew domain-specific training data, tackle an unbounded number of relations, and scale up to massive and heterogeneous corpus such as the web. However, It is difficult to process micro log texts: the genre is noisy, utterances are very short, and texts have little context. As such, conventional RE approaches fail when faced with micro log and other Web texts. In this paper, we present a gravitation-based Chinese ORE approach to extracting relations between entities by using the idea of the law of universal gravitation. GCORE produces heuristic rules to extract entity relations, and calculates a confidence score for each relational tuple, which is directly proportional to the product of the frequency of entity pairs and the frequency of relation words, and inversely proportional to the square of the distance between the relation word and the candidate entity pair. The confidence score can be used to show the reliability of relational tuples. The higher the score, the more reliable the candidate tuple is, and vice versa. The experimental evaluation over two data sets from ZORE demonstrates the correctness and effectiveness of our proposed approach, and empirical results on Weibo texts show the universality of GCORE.","PeriodicalId":205396,"journal":{"name":"2015 International Conference on Computer Science and Mechanical Automation (CSMA)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133602245","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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