The Open Automation and Control Systems Journal最新文献

{"title":"The Cloud Computing Center Performance Analysis Model Based onQueuing Theory","authors":"Zhang Yong-hua, Zhou Zhen, Zeng Fan-zi, Li Yuan","doi":"10.2174/1874444301507012280","DOIUrl":"https://doi.org/10.2174/1874444301507012280","url":null,"abstract":"To make comprehensive and objective analysis of the performance of the cloud computing system center, a cloud computing center system analysis model based on queuing theory is proposed. First, to describe the characteristics of user's service changes request arrived at center by using Poisson distribution, the batch arrival system model was estab- lished based on queuing theory, then solve the steady-state probability of length on the probability space, finally to ana- lyze the performance indexes as blocking probability, prompt service probability, etc. by using simulation experiment. The simulation results indicate that with increased batch arrival requests, the average length of the cloud computing center increases correspondingly. Increasing the length of the buffer can reduce the blocking probability of system, the experi- mental results can provide valuable reference for cloud service providers. Cloud computing system is a kind of data processing center that takes Internet as the core. Unified schedule stor- age, software, services and other resources, constitute a vir- tual computer center, to provide users with on-demand busi- ness model. Due to the increasing species of user demand, the users put forward requests of higher service quality of cloud computing system center. Cloud computing center is the core of the cloud computing system, the advantages and disadvantages of whose performance directly determine the pros and cons of cloud computing service quality, thus make the comprehensive and accurate analysis of the performance of cloud computing system center of great significance (1, 2). For the analysis of cloud computing system center, do- mestic and foreign scholars, and experts have invested a lot of time and energy to conduct a wide range of research; a lot of cloud computing center performance models came to the fore. Traditional cloud computing center performance analy- sis models adopt the simulation system such as the realiza- tion of CloudSim , they belong to the kind of static analysis model, assuming that cloud computing system center is op- erating at static state. However, in practical applications, cloud computing systems center has large scale and complex structure, and with time-dependent nature and mutability, it is difficult to establish accurate analysis model by using tradi- tional model. In order to solve the shortage of the traditional model, this paper proposes center analysis model of cloud computing system based on the data aggregation algorithm,","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121674499","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}

{"title":"Optimization Deployment Strategy of Mine Roadway Wireless SensorNetwork","authors":"Bin Wu, Jian Luo, Lingbing Tang","doi":"10.2174/1874444301507012262","DOIUrl":"https://doi.org/10.2174/1874444301507012262","url":null,"abstract":"Further research has been done in order to reduce the energy consumption of the mine roadway wireless sensor nodes and prolong the lifetime of the network. On the basis of analysis and study on the existing linear wireless sensor network nodes deployment, the node distance optimization deployment scheme with sinks in the center is proposed. The calculation method for optimized distance between nodes is provided. The experimental simulation prove that, compared to the traditional deployment scheme, this scheme can effectively solve the problem of \"energy hole\", greatly reduce the energy consumption of single sensor node and whole system, and prolong the network life cycle. For mine roadway with long distance, the optimization deployment scheme with multisinks shall be used. According to number of optimized sinks, the monitoring area in the mine roadway is divided, the total energy consumption of system is minimized, the ener- gy consumption of sensor nodes is balanced, and the network life cycle is significantly lengthened.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123791635","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}

{"title":"Optimization Design and Structural Dynamic Analysis of Cycling","authors":"Zhuang Min","doi":"10.2174/1874444301507012237","DOIUrl":"https://doi.org/10.2174/1874444301507012237","url":null,"abstract":"In this paper, the research object is cycling equipment which is common fitness equipment. The dynamic cha- racteristics of the cycling equipment were optimized in a virtual prototype, and analysis was carried out on its structural mechanical characteristics and dynamic performance, etc. The dynamic characteristics of this cycling equipment were ob- tained through modal, random response and harmonic response analyses, and the structural reasonability after optimiza- tion was verified. This can avoid unreasonable design of the cycling equipment, and an effective analysis and assessment method for cycling equipment design was proposed. With the improvement of people's livelihood, fitness industry enjoys rapid development, so stricter requirement is proposed for the innovation and R&D of fitness equipment. The researchers provide reasonable parameters according to ergonomics, and simulate it by means of the theories of kin- ematics of mechanism, thus optimizing the parameters of the cycling equipment, which can achieve the highest design efficiency. In this paper, simulation and optimization for the simplified mechanism of cycling equipment was realized by Adams software. After optimization, some of its mechanical characteristics were analyzed by building a finite element model of the cycling equipment. The finite element model was used for verifying that the cycling equipment of this dimension could meet the requirement of intensity in daily use. The results show that the speed stationarity of the opti- mized cycling equipment is improved within its operating stroke, which improves the comfort. The optimization of the mechanism design is realized by means of the optimization design of many-body dynamics software and finite element software, which provides a feasible design method for cy- cling equipment.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123566350","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}

{"title":"Research on the Wireless Filtering Algorithms for Improving TopologyControl Performance Based on Active Control Networks","authors":"Shuling Gao, Ouyang Rui","doi":"10.2174/1874444301507012230","DOIUrl":"https://doi.org/10.2174/1874444301507012230","url":null,"abstract":"Based on Ad Hoc networks, this paper has proposed a new construction and movement control algorithm for improving topology control which has better performance than the traditional method. In Ad Hoc networks, topology control is designed to save energy and increase network capacity by enabling nodes to use proper transmission power, which is usually much smaller than the maximal transmission power. However, the randomness of network deployment and node movement results in a non-uniform distribution of nodes. In a region where nodes are sparse, the distance between two nodes may be much longer than that in a dense region, so the transmission power is not able decrease and does not depend on which topology control algorithm is adopted. For the first time, this paper proposes movement control algorithms to improve performance of topology control by moving a subset of nodes to desiring positions. Based on the minimum spanning tree of the network topology graph, addition links are determined. Moreover, addition links are shortened and large communication range may be reduced by moving some nodes. Three movement algorithms, PMST-P, PMSTUV and LMST-LUV, are realized, and their performance is compared with each other with respect to maximum communication range, total moving distance and etc. using simulations.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114203063","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}

{"title":"Research of Massive Spatiotemporal Data Mining Technology Based onCloud Computing","authors":"Shuxia Wang, Z. Xiong","doi":"10.2174/1874444301507012244","DOIUrl":"https://doi.org/10.2174/1874444301507012244","url":null,"abstract":"This paper mainly discusses developing a new mass data analysis system in the face of the challenges, based on cloud computing technology, cloud service provided by Amazon and HBase. Based on the research of the EC2, S3 and EMR service provided by Amazon and on the detailed analysis of the client reception server and data handling server of the data analysis system, this paper tries to create a preliminary model of the system. Then, each model and whole system is finalized according to actual demand. Finally, system test and performance test prove that the system can solve the problems faced by traditional data analysis system. The research runs through the whole process of data analytical system design and implementation. Firstly, we present the problem domain and requirements. By investigating the traditional data analysis system and by analyzing the problems existing in this system, we raise the developing requirements of the mas- sive data analysis system based on cloud computing, and point out that the key points of the new system implementation are receiving server and data processing design. Secondly, we design and realize each module of the massive data analysis system. Finally, results of system test and performance test prove that the new data analysis system is stable and that the requirements are satisfied.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121462390","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}

{"title":"Spatial Spillover Effects of Public Services on Factor Income--Based onChanges in Variable Costs","authors":"Jing Li, Qing-nian Zhang","doi":"10.2174/1874444301507012253","DOIUrl":"https://doi.org/10.2174/1874444301507012253","url":null,"abstract":"In this paper, from the perspective of spatial economics, we studied the spatial spillover of public services and their effect on factor income. We establish a Nonlinear General Equilibrium Model, which contains \"two regions, two sectors and two elements\". For the determination of the spill-over effect, using Matlab mathematical software to draw a furger, through the mathematical method of derivative, we discuss the impact of public service on the factors' such as flow and spatial distribution. The study found that public services can increase the rate of factor income and facili- tate the flow of factors of production. With the accelerated process of economic globalization, inter-regional linkages have become ever more closely, ex- changes become more frequent, spillover effects of public services are increasing day by day. The local public service overflow, especially the accurate public service overflow, makes the income boundaries become blurred. With the in- creasing public goods, the cost of living and manufacture is reduced, the private sector reaps more revenue, and agglomer- ating and radiating effects are promoted. From the perspective of spatial economy, this paper studied the effect of spatial spillover effects on factor income of the public service (1, 2).","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114313900","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}

{"title":"A Contourlet-Based Image Watermarking Resisting to JPEG Compression","authors":"Junpeng Zhang, Huaijing Qu, Hongjuan Yang","doi":"10.2174/1874444301507012215","DOIUrl":"https://doi.org/10.2174/1874444301507012215","url":null,"abstract":"A novel image authentication algorithm resisting to JPEG compression is proposed. The authentication water- mark is generated based on the stability of relationship of adjacent Contourlet transform coefficients before and after JPEG. According to the random block mapping, the watermark is embedded into the discrete cosine transform (DCT) co- efficients of other image blocks. The tampering identification matrix is determined by the difference between extracted watermark and reconstructed watermark, and adjacent region comparison is adopted to determine the authenticity of im- age blocks. Experimental results show that the algorithm can achieve blind detection with better resistance to JPEG com- pression, also able to position malicious tampering more accurately.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122388852","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}

{"title":"Reaserch on the Construction and Realization of Synchronization Systemfor Wireless Spital Database Based on UUID","authors":"Song Liangong","doi":"10.2174/1874444301507012201","DOIUrl":"https://doi.org/10.2174/1874444301507012201","url":null,"abstract":"This paper implements a database synchronization system for the SQLite. For some of the problems encountered in the design and development of systems, by looking for literature, guessing and analyzing implementation methods of these similar systems, has solved some key issues and design and implement our own solutions. Mainly UUID replaces integer data format as data representation; Design table to store synchronization information metadata; Use HTTP protocol to transmit data and resolve security authentication and encrypted transmission; Use JSON format as the serial data format on the network transmission; Use JZEE platform to process system concurrent.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122393974","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}

{"title":"Research on Distribution Vehicle Routing Optimization Based on CloudComputing","authors":"Chen Keming","doi":"10.2174/1874444301507012184","DOIUrl":"https://doi.org/10.2174/1874444301507012184","url":null,"abstract":"The article analyzed the parallel programming mode of cloud computing. In order to increase solution rate of real-time optimization model, the article also proposed parallel genetic algorithm in the cloud computing environment. The article also researched on real time optimization vehicle routing problem of cold chain logistics distribution based on cloud computing and simulation. The experiment results verify the validity of the model.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124027331","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}

{"title":"Design of Networked Control Systems with Two Different Working Status","authors":"Guotao Hui, Wan-Chun Li, Guangrui Zhang","doi":"10.2174/1874444301507012189","DOIUrl":"https://doi.org/10.2174/1874444301507012189","url":null,"abstract":"This paper is concerned with stability and controller design of networked control systems (NCSs) with two dif- ferent working status. Firstly, the working status of NCSs are considered as two different cases: the normal case and the un-normal case. In normal case, the work process of NCSs are described by two independent working process: one is the packet dropouts process; the other is the network induced delay process. In un-normal case, there are two goals should be achieved for designing: one is to simulate the initial system for restarting the normal case; the other is to ensure the stabil- ity of NCSs as much as possible. Secondly, according to the designed networked controller, a novel necessary and suffi- cient condition for guaranteeing the stability of the NCSs under the un-normal case is proposed. Furthermore, the dynamic behavior of the NCSs where switching between the normal case and the un-normal case is considered. Finally, a numeri- cal example illustrates the effectiveness of the results.","PeriodicalId":153592,"journal":{"name":"The Open Automation and Control Systems Journal","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126303500","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}