Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228657
O. Kodym
The speed of information technology development is ever increasing. The appropriate information can be easily provided for and often it can be visually presented. The access to relative information, documents, etc., takes advantage of Hyperlinks, often supported by the Internet of things. The paper deals with a technology that makes data interpretation much easier for the users. It is of no consequence for them, where and in what form the information is stored. The user's access to information does not imply knowledge of a specific program, X, or knowledge that his piece of information is in file, Y. All such knowledge is Hyperlink comprised by unified GUI (Graphic User Interface) with the final goal of VRE (Virtual Reality Environment) interpretation. The Internet of Things implies new possibilities to designing and implementing of distributed and hierarchical information systems.
{"title":"Creation of Virtual Reality space based on Internet of Things","authors":"O. Kodym","doi":"10.1109/CARPATHIANCC.2012.6228657","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228657","url":null,"abstract":"The speed of information technology development is ever increasing. The appropriate information can be easily provided for and often it can be visually presented. The access to relative information, documents, etc., takes advantage of Hyperlinks, often supported by the Internet of things. The paper deals with a technology that makes data interpretation much easier for the users. It is of no consequence for them, where and in what form the information is stored. The user's access to information does not imply knowledge of a specific program, X, or knowledge that his piece of information is in file, Y. All such knowledge is Hyperlink comprised by unified GUI (Graphic User Interface) with the final goal of VRE (Virtual Reality Environment) interpretation. The Internet of Things implies new possibilities to designing and implementing of distributed and hierarchical information systems.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121525012","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228738
P. Sofer, J. Škuta, J. Gebauer
The paper is devoted to 3-axis positioning of a CNC machine model. This desktop CNC machine is used here as a tool for circuit board holes drilling, designed using the EAGLE software. Connection between the EAGLE software and the CNC machine model is provided by monitoring and visualization application, created in the visualization system Control Web 6. This application receives exported data from the EAGLE software via a DDE communication protocol and using suitable algorithms transfers these data to desirable drilling points coordinates. These coordinates are then sent to a PLC controller which controls the CNC machine via the OPC communication protocol.
本文主要研究数控机床模型的三轴定位问题。这台台式数控机床是用EAGLE软件设计的电路板钻孔工具。在可视化系统Control Web 6中创建的监控和可视化应用程序提供了EAGLE软件与数控机床模型之间的连接。该应用程序通过DDE通信协议接收EAGLE软件导出的数据，并使用合适的算法将这些数据传输到所需的钻井点坐标。然后将这些坐标发送到PLC控制器，PLC控制器通过OPC通信协议控制数控机床。
{"title":"Drilling of circuit boards using CNC controlled by programable logic controller","authors":"P. Sofer, J. Škuta, J. Gebauer","doi":"10.1109/CARPATHIANCC.2012.6228738","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228738","url":null,"abstract":"The paper is devoted to 3-axis positioning of a CNC machine model. This desktop CNC machine is used here as a tool for circuit board holes drilling, designed using the EAGLE software. Connection between the EAGLE software and the CNC machine model is provided by monitoring and visualization application, created in the visualization system Control Web 6. This application receives exported data from the EAGLE software via a DDE communication protocol and using suitable algorithms transfers these data to desirable drilling points coordinates. These coordinates are then sent to a PLC controller which controls the CNC machine via the OPC communication protocol.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126581140","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228732
P. Staša, V. Kebo, P. Fuchsikova, L. Kubáč
The paper deals with the issue of the drift of residual methane release from the extracted seams of the underground coal mines. Methane is a hazardous gas, which, thanks to its density, tends to gather under the ceilings of mine shafts or rooms where it is present. When mixed with air, it is explosive within the 5 - 15 % range and that is the reason for the highly hazardous nature of the given gas despite the fact that under normal conditions, it is not dangerous for people. The objective of the present paper is to examine, using numerical gas glow modelling a potential building protection design for buildings located in areas with terminated mining activity and thus exposed to the risk of methane ingress and, as the case may be, causing in estimable losses of property or even human lives. The exclusiveness of our approach involves the effort at visualising and showing how the gas will behave in a porous environment in the model situations we put to the test. Unless numerical flow technology, generally referred to as CFD (Computational Fluid Dynamics) software, is used, the situation in the underground may practically never be identified and it is specifically thanks to the use of the Fluent software that we can theoretically model and subsequently realise how the surrounding conditions may change and affect flow from the underground to the surface and change the immediate conditions there. The Gambit software tool was used when creating the geometrical model of the working area; the CFD Fluent software by ANSYS, Inc. was used to model gas flow.
{"title":"Modelling potential action for building protection against flow of methane from the underground using the Fluent software","authors":"P. Staša, V. Kebo, P. Fuchsikova, L. Kubáč","doi":"10.1109/CARPATHIANCC.2012.6228732","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228732","url":null,"abstract":"The paper deals with the issue of the drift of residual methane release from the extracted seams of the underground coal mines. Methane is a hazardous gas, which, thanks to its density, tends to gather under the ceilings of mine shafts or rooms where it is present. When mixed with air, it is explosive within the 5 - 15 % range and that is the reason for the highly hazardous nature of the given gas despite the fact that under normal conditions, it is not dangerous for people. The objective of the present paper is to examine, using numerical gas glow modelling a potential building protection design for buildings located in areas with terminated mining activity and thus exposed to the risk of methane ingress and, as the case may be, causing in estimable losses of property or even human lives. The exclusiveness of our approach involves the effort at visualising and showing how the gas will behave in a porous environment in the model situations we put to the test. Unless numerical flow technology, generally referred to as CFD (Computational Fluid Dynamics) software, is used, the situation in the underground may practically never be identified and it is specifically thanks to the use of the Fluent software that we can theoretically model and subsequently realise how the surrounding conditions may change and affect flow from the underground to the surface and change the immediate conditions there. The Gambit software tool was used when creating the geometrical model of the working area; the CFD Fluent software by ANSYS, Inc. was used to model gas flow.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131646719","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228741
P. Tomčík, J. Kulhanek
The aim of paper is focused on principle and architecture of real time application core for dynamic multiaxial testing on hydraulic platform. There is used an approach with HW and SW from Nationall Instrument (the real-time PXI platform and LabView development SW). In the paper will be presented internal architecture of SW and HW for real-time 12 parallel control loops.
{"title":"Realtime application core for multiaxial dynamic testing","authors":"P. Tomčík, J. Kulhanek","doi":"10.1109/CARPATHIANCC.2012.6228741","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228741","url":null,"abstract":"The aim of paper is focused on principle and architecture of real time application core for dynamic multiaxial testing on hydraulic platform. There is used an approach with HW and SW from Nationall Instrument (the real-time PXI platform and LabView development SW). In the paper will be presented internal architecture of SW and HW for real-time 12 parallel control loops.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132822243","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228726
M. Sír, Z. Bradác, M. Kupcík
The aim of this article is to compare possibilities of the ontology usage in automation. In the first part there is the ontology definition and its generic form discussed as well as the connection between ontology and semantic web. In the second part, there are shown the possibilities of the ontology usage in automation, especially usage of ontology as metadata storage. The last part of the paper describes ontology for sensors and the way which includes the influences of environment to ontology. The paper describes the ontology as a part of diagnostics system.
{"title":"Ontology and diagnostics in automation technology","authors":"M. Sír, Z. Bradác, M. Kupcík","doi":"10.1109/CARPATHIANCC.2012.6228726","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228726","url":null,"abstract":"The aim of this article is to compare possibilities of the ontology usage in automation. In the first part there is the ontology definition and its generic form discussed as well as the connection between ontology and semantic web. In the second part, there are shown the possibilities of the ontology usage in automation, especially usage of ontology as metadata storage. The last part of the paper describes ontology for sensors and the way which includes the influences of environment to ontology. The paper describes the ontology as a part of diagnostics system.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115445368","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228653
V. Kebo, P. Staša
Mining production in underground spaces will be in the near future realized by autonomous systems without human presence. As the production is connected to natural raw materials deposits, where the process environment models and activities cannot be fully determined, the human supervision will be still necessary. Classical process control, with the external system description of the dynamic behavior, uses the transformation of input actions to output reactions for the model design. Similarly for the process visualization the classical methods - SCADA (Supervisory Control and Data Acquisition) systems are used. Modern control theory is based on state representation of systems, caused by the necessity to obtain more information to understand and describe the dynamics of complex system in the control process. Resulting state space model represents the dynamic properties of the system. The behavior of system in the state space is then represented by the state trajectory - given by the values of state variables in the observed time period. The problem is that the state variables, in many cases, do not have the physical dimension and do not describe surrounding environment. The Virtual Reality tools provide the possibility for visualization of such a virtual and complex systems description in special artificial space.
{"title":"Mining processes control and Virtual Reality","authors":"V. Kebo, P. Staša","doi":"10.1109/CARPATHIANCC.2012.6228653","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228653","url":null,"abstract":"Mining production in underground spaces will be in the near future realized by autonomous systems without human presence. As the production is connected to natural raw materials deposits, where the process environment models and activities cannot be fully determined, the human supervision will be still necessary. Classical process control, with the external system description of the dynamic behavior, uses the transformation of input actions to output reactions for the model design. Similarly for the process visualization the classical methods - SCADA (Supervisory Control and Data Acquisition) systems are used. Modern control theory is based on state representation of systems, caused by the necessity to obtain more information to understand and describe the dynamics of complex system in the control process. Resulting state space model represents the dynamic properties of the system. The behavior of system in the state space is then represented by the state trajectory - given by the values of state variables in the observed time period. The problem is that the state variables, in many cases, do not have the physical dimension and do not describe surrounding environment. The Virtual Reality tools provide the possibility for visualization of such a virtual and complex systems description in special artificial space.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115504044","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228676
J. Kukurugya, J. Terpák
In general, heat transfer is expressed by heat flux which depends on thermal resistance and temperature difference. Thermal resistance is determined by heat transfer area and coefficient of heat transfer. In case of convection heat transfer are considered heat transfer more often between liquids or liquid and grain material what is specific for area of raw materials processing. The values of convection heat transfer coefficient are normally gained from the experimental measurement. The contribution deal with software support for calculation of convection heat transfer coefficient, dimensionless criteria and elementary thermo-physical properties of gas media from area processing of raw materials with known composition and temperature. Functions were created in MATLAB. In article coefficient of convection heat transfer for every type of convection are expressed by dimensionless criteria where elementary thermophysical properties are proposed. According to the expressed relations was proposed general form of relation for coefficient of convection heat transfer calculation. Dependencies of convection heat transfer coefficient on different factors are showed.
{"title":"Software support for modelling of heat transfer by convection","authors":"J. Kukurugya, J. Terpák","doi":"10.1109/CARPATHIANCC.2012.6228676","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228676","url":null,"abstract":"In general, heat transfer is expressed by heat flux which depends on thermal resistance and temperature difference. Thermal resistance is determined by heat transfer area and coefficient of heat transfer. In case of convection heat transfer are considered heat transfer more often between liquids or liquid and grain material what is specific for area of raw materials processing. The values of convection heat transfer coefficient are normally gained from the experimental measurement. The contribution deal with software support for calculation of convection heat transfer coefficient, dimensionless criteria and elementary thermo-physical properties of gas media from area processing of raw materials with known composition and temperature. Functions were created in MATLAB. In article coefficient of convection heat transfer for every type of convection are expressed by dimensionless criteria where elementary thermophysical properties are proposed. According to the expressed relations was proposed general form of relation for coefficient of convection heat transfer calculation. Dependencies of convection heat transfer coefficient on different factors are showed.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124092508","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228616
T. Brandejsky
The paper discusses application of Genetic Programming Algorithm - Evolutionary Strategy (GPA-ES) algorithm to symbolic regression of chaotic systems. In the paper, Van der Pol oscillator and especially Rabinovich-Fabrikant equations are analyzed and regressed. On the base of these experiments, novel improvements of GPA-ES algorithm are suggested.
本文讨论了遗传规划算法-进化策略算法在混沌系统符号回归中的应用。本文对Van der Pol振子，特别是rabinovitch - fabrikant方程进行了分析和回归。在这些实验的基础上，提出了改进GPA-ES算法的新方法。
{"title":"Nonlinear system identification by GPA-ES","authors":"T. Brandejsky","doi":"10.1109/CARPATHIANCC.2012.6228616","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228616","url":null,"abstract":"The paper discusses application of Genetic Programming Algorithm - Evolutionary Strategy (GPA-ES) algorithm to symbolic regression of chaotic systems. In the paper, Van der Pol oscillator and especially Rabinovich-Fabrikant equations are analyzed and regressed. On the base of these experiments, novel improvements of GPA-ES algorithm are suggested.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124206338","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228711
I. Podlubny, I. Petráš, T. Skovranek
For fitting the measured data, a new approach is suggested, which is based on using the Mittag-Leffler function and which means that the data are fitted by a solution of an initial-value problem for a two-term fractional differential equation.
{"title":"Fitting of experimental data using Mittag-Leffler function","authors":"I. Podlubny, I. Petráš, T. Skovranek","doi":"10.1109/CARPATHIANCC.2012.6228711","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228711","url":null,"abstract":"For fitting the measured data, a new approach is suggested, which is based on using the Mittag-Leffler function and which means that the data are fitted by a solution of an initial-value problem for a two-term fractional differential equation.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115837169","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}
Pub Date : 2012-05-28DOI: 10.1109/CARPATHIANCC.2012.6228640
C. Hajiyev, M. Ata, M. Dinç, H. Soken
This article is basically focused on application of the Unscented Kalman Filter (UKF) algorithm to the estimation of high speed an autonomous underwater vehicle (AUV) dynamics. In the normal operation conditions of AUV, conventional UKF gives sufficiently good estimation results. However, if the measurements are not reliable because of any kind of malfunction in the estimation system, UKF gives inaccurate results and diverges by time. This study, introduces Robust Unscented Kalman Filter (RUKF) algorithms with the filter gain correction for the case of measurement malfunctions. By the use of defined variables named as measurement noise scale factor, the faulty measurements are taken into the consideration with a small weight and the estimations are corrected without affecting the characteristic of the accurate ones. In the presented RUKF's, the filter gain correction is performed only in the case of malfunctions in the measurement system and in all other cases procedure is run optimally with regular UKF. Checkout is satisfied via a kind of statistical information. In order to achieve that, the fault detection procedure is introduced. Two different RUKF algorithms, one with single scale factor and one with multiple scale factors, are proposed and applied for the motion dynamics parameters estimation process of an AUV. The results of these algorithms are compared for different types of measurement faults in different estimation scenarios and recommendations about their applications are given.
{"title":"Fault tolerant estimation of autonomous underwater vehicle dynamics via robust UKF","authors":"C. Hajiyev, M. Ata, M. Dinç, H. Soken","doi":"10.1109/CARPATHIANCC.2012.6228640","DOIUrl":"https://doi.org/10.1109/CARPATHIANCC.2012.6228640","url":null,"abstract":"This article is basically focused on application of the Unscented Kalman Filter (UKF) algorithm to the estimation of high speed an autonomous underwater vehicle (AUV) dynamics. In the normal operation conditions of AUV, conventional UKF gives sufficiently good estimation results. However, if the measurements are not reliable because of any kind of malfunction in the estimation system, UKF gives inaccurate results and diverges by time. This study, introduces Robust Unscented Kalman Filter (RUKF) algorithms with the filter gain correction for the case of measurement malfunctions. By the use of defined variables named as measurement noise scale factor, the faulty measurements are taken into the consideration with a small weight and the estimations are corrected without affecting the characteristic of the accurate ones. In the presented RUKF's, the filter gain correction is performed only in the case of malfunctions in the measurement system and in all other cases procedure is run optimally with regular UKF. Checkout is satisfied via a kind of statistical information. In order to achieve that, the fault detection procedure is introduced. Two different RUKF algorithms, one with single scale factor and one with multiple scale factors, are proposed and applied for the motion dynamics parameters estimation process of an AUV. The results of these algorithms are compared for different types of measurement faults in different estimation scenarios and recommendations about their applications are given.","PeriodicalId":334936,"journal":{"name":"Proceedings of the 13th International Carpathian Control Conference (ICCC)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116503900","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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