In this paper, a programming port communication protocol of Mitsubishi FX series PLC is introduce... more In this paper, a programming port communication protocol of Mitsubishi FX series PLC is introduced and studied. A part of communication program based on LabVIEW is presented. The serial communication between PLC and industry PC (host computer) is implemented, which is a simple hardware structure and quite practicable. This communication has been applied successfully in the supervisory system which is introduced in this paper. It has substituted for the configuration software and also realized the data supervision through the host computer. What¿s more, the advantage of high efficiency and low price by using this communication is doomed to win great favor.
A epsiv-SVR (epsiv-Support Vector Regression) based modeling method is introduced to process data... more A epsiv-SVR (epsiv-Support Vector Regression) based modeling method is introduced to process data acquired from infrared temperature demarcating experiment. In the process of the temperature of black body ranging from 30degC to 72degC, 22 groups of samples are acquired, which include 17 groups of training samples and 5 groups of forecasting samples. The fitting curves are got through training samples and forecasting samples under MATLAB. Compared with traditional method of least square, the precision of this method is far higher. In conclusion, the method of epsiv-SVR can become a method of data processing to infrared temperature demarcating.
Notice of RetractionAfter careful and considered review of the content of this paper by a duly co... more Notice of RetractionAfter careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.When temperature change, the flexivity will be changed for various components level's thermal-expansion coefficient is different for sheet of Metal Composite. The performance of sheet of metal composite is affected enormously and the change quantity is a micron level. Based on the pattern displacement sensor, according to related national examination standard, the automatic precise measurement device of sheet of metal composite is designed. The testing is realized automatically, because that the data is transmitted through the RS-232 connection, then analyzed and the report is resulted after this. The test result indicated that the flexivity accuracy amounts to 4 microns, The efficiency, precision and technology of the device have been rapidly improved.
The basic principle of embed-in-wall heat flux sensor as well as its structure and manufacturing ... more The basic principle of embed-in-wall heat flux sensor as well as its structure and manufacturing are introduced in this paper. And the flux distribution of embed-in-wall heat flux sensor and its deviation are analyzed. The concept of isolation layer is proposed. The introduction of isolation layer has important significance to improve the measurement accuracy of heat flux sensor.
Based on the formula of image radiation, the influence of distance on the temperature measurement... more Based on the formula of image radiation, the influence of distance on the temperature measurement accuracy using IR thermal is analyzed in theory. A algorithm for correction based on neural network is proposed. The error caused from the difference between measuring distance and calibrated distance is reduced by correction when measuring in a short distance.
With Object Oriented (OO) method, this paper analyzes the maintenance process of the electronic i... more With Object Oriented (OO) method, this paper analyzes the maintenance process of the electronic instrument and its information exchange capability with external environment. Consequently the electronic instrument federate is developed according to High Level Architecture (HLA) standards. This paper develops graphical modeling tool for workflow based on VC++, and creates workflow model for Maintenance Support of Electronic Instrument (MSEI) in this tool based on Petri net. By setting simulating environment, this tool can create simulation models that can be executed in simulation software-ExSpect automatically. Simulate models are integrated into Run-Time Infrastructure (RTI) by ExSpect's Component Object Model (COM) interfaces. By simulating these instantial workflow models, this paper analyzes the validity, rationality and operational efficiency of MSEI workflow model, and proposes improvement measures for workflow model. Consequently, it carries out Business Process Reengineering (BPR) for maintenance process.
In this paper, a programming port communication protocol of Mitsubishi FX series PLC is introduce... more In this paper, a programming port communication protocol of Mitsubishi FX series PLC is introduced and studied. A part of communication program based on LabVIEW is presented. The serial communication between PLC and industry PC (host computer) is implemented, which is a simple hardware structure and quite practicable. This communication has been applied successfully in the supervisory system which is introduced in this paper. It has substituted for the configuration software and also realized the data supervision through the host computer. What¿s more, the advantage of high efficiency and low price by using this communication is doomed to win great favor.
A epsiv-SVR (epsiv-Support Vector Regression) based modeling method is introduced to process data... more A epsiv-SVR (epsiv-Support Vector Regression) based modeling method is introduced to process data acquired from infrared temperature demarcating experiment. In the process of the temperature of black body ranging from 30degC to 72degC, 22 groups of samples are acquired, which include 17 groups of training samples and 5 groups of forecasting samples. The fitting curves are got through training samples and forecasting samples under MATLAB. Compared with traditional method of least square, the precision of this method is far higher. In conclusion, the method of epsiv-SVR can become a method of data processing to infrared temperature demarcating.
Notice of RetractionAfter careful and considered review of the content of this paper by a duly co... more Notice of RetractionAfter careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles.We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.When temperature change, the flexivity will be changed for various components level's thermal-expansion coefficient is different for sheet of Metal Composite. The performance of sheet of metal composite is affected enormously and the change quantity is a micron level. Based on the pattern displacement sensor, according to related national examination standard, the automatic precise measurement device of sheet of metal composite is designed. The testing is realized automatically, because that the data is transmitted through the RS-232 connection, then analyzed and the report is resulted after this. The test result indicated that the flexivity accuracy amounts to 4 microns, The efficiency, precision and technology of the device have been rapidly improved.
The basic principle of embed-in-wall heat flux sensor as well as its structure and manufacturing ... more The basic principle of embed-in-wall heat flux sensor as well as its structure and manufacturing are introduced in this paper. And the flux distribution of embed-in-wall heat flux sensor and its deviation are analyzed. The concept of isolation layer is proposed. The introduction of isolation layer has important significance to improve the measurement accuracy of heat flux sensor.
Based on the formula of image radiation, the influence of distance on the temperature measurement... more Based on the formula of image radiation, the influence of distance on the temperature measurement accuracy using IR thermal is analyzed in theory. A algorithm for correction based on neural network is proposed. The error caused from the difference between measuring distance and calibrated distance is reduced by correction when measuring in a short distance.
With Object Oriented (OO) method, this paper analyzes the maintenance process of the electronic i... more With Object Oriented (OO) method, this paper analyzes the maintenance process of the electronic instrument and its information exchange capability with external environment. Consequently the electronic instrument federate is developed according to High Level Architecture (HLA) standards. This paper develops graphical modeling tool for workflow based on VC++, and creates workflow model for Maintenance Support of Electronic Instrument (MSEI) in this tool based on Petri net. By setting simulating environment, this tool can create simulation models that can be executed in simulation software-ExSpect automatically. Simulate models are integrated into Run-Time Infrastructure (RTI) by ExSpect's Component Object Model (COM) interfaces. By simulating these instantial workflow models, this paper analyzes the validity, rationality and operational efficiency of MSEI workflow model, and proposes improvement measures for workflow model. Consequently, it carries out Business Process Reengineering (BPR) for maintenance process.
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