A novel control strategy for three-phase combined inverters is proposed based on phase-locked loop (PLL) technology. Phase synchronous signal is easily disturbed in the process of signal transmission for conventional combined inverters with control-wire connection, which is solved by demodulation of a certain output voltage. The proposed concept is simple, and easy to implement. And good symmetrical three-phase output voltage could be achieved under unbalanced loads, even with inverters of different topologies and controllers combined together. It demonstrates almost the same high performance as that in stand-alone operation mode. Experimental results of 3.6-kVA three-phase combined inverter prototypes are presented to verify the validity and feasibility of this scheme.
{"title":"Research on Phase-Locked Control Strategy for Three-Phase Combined Inverters","authors":"Xianjin Zhang, Jianhua Wang","doi":"10.1109/WGEC.2009.17","DOIUrl":"https://doi.org/10.1109/WGEC.2009.17","url":null,"abstract":"A novel control strategy for three-phase combined inverters is proposed based on phase-locked loop (PLL) technology. Phase synchronous signal is easily disturbed in the process of signal transmission for conventional combined inverters with control-wire connection, which is solved by demodulation of a certain output voltage. The proposed concept is simple, and easy to implement. And good symmetrical three-phase output voltage could be achieved under unbalanced loads, even with inverters of different topologies and controllers combined together. It demonstrates almost the same high performance as that in stand-alone operation mode. Experimental results of 3.6-kVA three-phase combined inverter prototypes are presented to verify the validity and feasibility of this scheme.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117295636","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}
Evidence theory decision tree is an efficient classification technique can be used in uncertain data mining field. But it can’t deal with large training sets of millions of samples which are common in this field. This paper develops parallel algorithm for evidence theory decision tree on the multidimensional cube structure. Example shows this algorithm can treat with very large multidimensional uncertain data training set and shows good parallel performance.
{"title":"Parallel Multidimensional Uncertain Data Evidence Theory Decision Tree","authors":"Li Fang, Wang Chong, Chen Yi","doi":"10.1109/WGEC.2009.197","DOIUrl":"https://doi.org/10.1109/WGEC.2009.197","url":null,"abstract":"Evidence theory decision tree is an efficient classification technique can be used in uncertain data mining field. But it can’t deal with large training sets of millions of samples which are common in this field. This paper develops parallel algorithm for evidence theory decision tree on the multidimensional cube structure. Example shows this algorithm can treat with very large multidimensional uncertain data training set and shows good parallel performance.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116255086","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 proposes the correction algorithm of lamina based on bilinear mapping aimed at the problems of image incline and geometric distortion when collecting field lamina images using digital camera. The validity of measurement has not been influenced by size, figure differentia and white background of laminae. The experiment shows that the accuracy can reach to 99% when using this method to correct the lamina image, which is the basement of extracting the lamina features.
{"title":"Investigation on the Correction Algorithm of Lamina Based on Bilinear Mapping","authors":"Haiou Guan, Shaohua Xu","doi":"10.1109/WGEC.2009.128","DOIUrl":"https://doi.org/10.1109/WGEC.2009.128","url":null,"abstract":"This paper proposes the correction algorithm of lamina based on bilinear mapping aimed at the problems of image incline and geometric distortion when collecting field lamina images using digital camera. The validity of measurement has not been influenced by size, figure differentia and white background of laminae. The experiment shows that the accuracy can reach to 99% when using this method to correct the lamina image, which is the basement of extracting the lamina features.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124682646","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}
Aiming at speed of the program and capacity of hidden information in traditional algorithms as equation reordering, a new algorithm based on inverse number of equation’s operand coefficient was proposed in this paper. Through the one-to-one relationship between the inverse number and the binary number we can get the Dictionary Mapping. According to the Dictionary Mapping, which is made up of the inverse number of permutation and the binary number, we hide the watermark data. The main advantages of this method are that no code is added to the program and speed of the program is not changed, but the efficiency of hidden data is effectively improved. The capability of this new software watermarking algorithm is better than those of algorithms as equation reordering.
{"title":"Software Watermarking Algorithm by Coefficients of Equation","authors":"Zonglu Sha, Hua Jiang, Aicheng Xuan","doi":"10.1109/WGEC.2009.18","DOIUrl":"https://doi.org/10.1109/WGEC.2009.18","url":null,"abstract":"Aiming at speed of the program and capacity of hidden information in traditional algorithms as equation reordering, a new algorithm based on inverse number of equation’s operand coefficient was proposed in this paper. Through the one-to-one relationship between the inverse number and the binary number we can get the Dictionary Mapping. According to the Dictionary Mapping, which is made up of the inverse number of permutation and the binary number, we hide the watermark data. The main advantages of this method are that no code is added to the program and speed of the program is not changed, but the efficiency of hidden data is effectively improved. The capability of this new software watermarking algorithm is better than those of algorithms as equation reordering.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124778481","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 mobile AD HOC networks have the characteristics hidden / exposed terminals and single channel. This paper not only analysis the cause of hidden / exposed terminals and the single-channel, but also described mac layer main access protocol in the current ad hoc network. And in a single channel circumstances, analyzed the agreement of the hidden / exposed terminal situation. Finally, in the article presented the method to solve the hidden terminal and exposed terminal.
{"title":"Study of AD HOC Network Access Single-Channel MAC Protocol and Hidden/Exposed Terminal","authors":"Yong Tang, Man-yuan Zhou","doi":"10.1109/WGEC.2009.53","DOIUrl":"https://doi.org/10.1109/WGEC.2009.53","url":null,"abstract":"The mobile AD HOC networks have the characteristics hidden / exposed terminals and single channel. This paper not only analysis the cause of hidden / exposed terminals and the single-channel, but also described mac layer main access protocol in the current ad hoc network. And in a single channel circumstances, analyzed the agreement of the hidden / exposed terminal situation. Finally, in the article presented the method to solve the hidden terminal and exposed terminal.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"594 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122725825","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}
As a result of environment of the robot soccer competition which has such characteristics as complexity, nonlinear, polygonal, uncertainty and so on, and all of the intelligent agent has a common goal - to achieve final shot through the cooperation and win the competition finally, so the shot in front of the goal become part and parcel of winning the game. Based on the analysis of exist shooting algorithms, a new kind of shooting algorithm for soccer robot known as The Shooting Algorithm Based on Self-Adaptation Intelligent Agent was proposed to allow a more accurate shot and improve the shoot success ratio further. Through the path planning and the use of “Approach Gradually”to achieve accurate shooting,, Intelligent Agent test and experiment in robot soccer simulation system and simulation results are given
{"title":"The Shooting Algorithm Based on Self-Adaptation Intelligent Agent","authors":"Yun Shao, Gai-yun Wang","doi":"10.1109/WGEC.2009.83","DOIUrl":"https://doi.org/10.1109/WGEC.2009.83","url":null,"abstract":"As a result of environment of the robot soccer competition which has such characteristics as complexity, nonlinear, polygonal, uncertainty and so on, and all of the intelligent agent has a common goal - to achieve final shot through the cooperation and win the competition finally, so the shot in front of the goal become part and parcel of winning the game. Based on the analysis of exist shooting algorithms, a new kind of shooting algorithm for soccer robot known as The Shooting Algorithm Based on Self-Adaptation Intelligent Agent was proposed to allow a more accurate shot and improve the shoot success ratio further. Through the path planning and the use of “Approach Gradually”to achieve accurate shooting,, Intelligent Agent test and experiment in robot soccer simulation system and simulation results are given","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125157717","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}
Optimization model is build for solving the aircraft departure sequencing problem in this paper first. Then, an improved genetic algorithm (GA) using symbolic coding is proposed, where a type of total probability crossover and big probability mutation are performed. In this way, the evolutionary policy of Particle Swarm Optimization (PSO) is absorbed into the improved GA, which reduces the complexity and enhance the efficiency greatly. Last, a simulation program using basic GA, adaptive GA, and improved GA is performed. The simulation result shows that the model is effective and Improved GA has better performance than Basic GA or Adaptive GA.
{"title":"Improved Genetic Algorithm for Aircraft Departure Sequencing Problem","authors":"Laijun Wang, Da-wei Hu, Rui-zi Gong","doi":"10.1109/WGEC.2009.125","DOIUrl":"https://doi.org/10.1109/WGEC.2009.125","url":null,"abstract":"Optimization model is build for solving the aircraft departure sequencing problem in this paper first. Then, an improved genetic algorithm (GA) using symbolic coding is proposed, where a type of total probability crossover and big probability mutation are performed. In this way, the evolutionary policy of Particle Swarm Optimization (PSO) is absorbed into the improved GA, which reduces the complexity and enhance the efficiency greatly. Last, a simulation program using basic GA, adaptive GA, and improved GA is performed. The simulation result shows that the model is effective and Improved GA has better performance than Basic GA or Adaptive GA.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125766092","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 particle swarm optimization (PSO), which goes right after Ant Colony Algorithm, is another new swarm intelligence algorithm. PSO has the same drawbacks as other optimization algorithms in spite of its predominance in some fields. That is easily falling into local optimization solution and low convergence velocity in the final stage. An improved algorithm called acceleration factors self-adaptive PSO (ASAPSO) was proposed for the drawbacks. The constant acceleration coefficients in the standard PSO were changed into self-adaptive acceleration factors in the progress of evolution. By controlling the acceleration factors, the particles have stronger global search capability in the early stage and are less likely to be impacted by the current global optimum position and the particles fly to global optimum position more rapidly in the final stage, thus achieved enhanced the convergence velocity. From the numerous experimental results on 4 widely used benchmark functions, we can show that ASAPSO outperforms other three improved PSO.
{"title":"Particle Swarm Optimization Based on Self-adaptive Acceleration Factors","authors":"Gai-yun Wang, Dong-xue Han","doi":"10.1109/WGEC.2009.55","DOIUrl":"https://doi.org/10.1109/WGEC.2009.55","url":null,"abstract":"The particle swarm optimization (PSO), which goes right after Ant Colony Algorithm, is another new swarm intelligence algorithm. PSO has the same drawbacks as other optimization algorithms in spite of its predominance in some fields. That is easily falling into local optimization solution and low convergence velocity in the final stage. An improved algorithm called acceleration factors self-adaptive PSO (ASAPSO) was proposed for the drawbacks. The constant acceleration coefficients in the standard PSO were changed into self-adaptive acceleration factors in the progress of evolution. By controlling the acceleration factors, the particles have stronger global search capability in the early stage and are less likely to be impacted by the current global optimum position and the particles fly to global optimum position more rapidly in the final stage, thus achieved enhanced the convergence velocity. From the numerous experimental results on 4 widely used benchmark functions, we can show that ASAPSO outperforms other three improved PSO.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128720066","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}
Quantitative feedback theory (QFT) is an engineering design method with strong practical value in the field of robust control and it is aimed at the objects with parameters changes. This paper introduces the basic principles and the design process of QFT, and for parameter uncertainty of the robot joint control, this paper designs the feedback-controller and the pre-filter of the system based on QFT. MATLAB simulation results show that the method is with good robust performance and dynamic performance in the robot joint control, and meets the performance indicators.
{"title":"Robust Control Design of the Robot Joint Based on QFT","authors":"Juanli Ma, Yongxian Song, Xuping Qin","doi":"10.1109/WGEC.2009.69","DOIUrl":"https://doi.org/10.1109/WGEC.2009.69","url":null,"abstract":"Quantitative feedback theory (QFT) is an engineering design method with strong practical value in the field of robust control and it is aimed at the objects with parameters changes. This paper introduces the basic principles and the design process of QFT, and for parameter uncertainty of the robot joint control, this paper designs the feedback-controller and the pre-filter of the system based on QFT. MATLAB simulation results show that the method is with good robust performance and dynamic performance in the robot joint control, and meets the performance indicators.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121098955","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}
Recent developments in portable device and growing wireless communication networks have evolved embedded database during the last few years. The embedded database store data that technician and others can access to monitor, diagnose, and otherwise work with the machine. Based on vehicle management requirements, the characteristics and actual demand of remote supervisory system are analyzed in this paper. The design concept and the structural methods of a real-time remote vehicle monitoring system centralized with embedded database are presented; the application of SQLite in real-time data collection, data synchronization and remote communication is also discussed.
{"title":"Remote Monitoring Systems Based on Embedded Database","authors":"Jing Li, Yong Xu","doi":"10.1109/WGEC.2009.54","DOIUrl":"https://doi.org/10.1109/WGEC.2009.54","url":null,"abstract":"Recent developments in portable device and growing wireless communication networks have evolved embedded database during the last few years. The embedded database store data that technician and others can access to monitor, diagnose, and otherwise work with the machine. Based on vehicle management requirements, the characteristics and actual demand of remote supervisory system are analyzed in this paper. The design concept and the structural methods of a real-time remote vehicle monitoring system centralized with embedded database are presented; the application of SQLite in real-time data collection, data synchronization and remote communication is also discussed.","PeriodicalId":277950,"journal":{"name":"2009 Third International Conference on Genetic and Evolutionary Computing","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125993252","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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