A PAPER ON “WEB ENABLED MONITORING AND CONTROL SYSTEM DESIGN USING Lab VIEW “ Submitted By: A. Abdul Rashid Talk On: “WEB ENABLED MONITORING AND CONTROL SYSTEM DESIGN USING Lab VIEW” By:- Mr. Patil R. T & Mr. Kumbhar M.S. Assistant Professor, Electronics & Telecommunication Engineering Dept. RIT, Sakharale (M.S.) E-mail id: email@example.com. WHY WE CHOSE Lab VIEW: The software has been developed using the National Instruments Lab VIEW 7.1. The Lab VIEW environment makes easy the rapid development of advanced Virtual instruments, It uses a pure graphical language. Lab VIEW has been found to be a powerful tool which reduces the cost . It is useful for the Internet related tasks. Tool : LABVIEW LabVIEW – Laboratory virtual Instrumentation Engineering Workbench. Developed by National Instruments ‘G’ Language works on Data Flow Technique Widely used for Data Acquisition, Instrument Control and Industrial Automation on various platforms. NEED Common man gets information only through newspaper or television Probably five or six hours after the event. There has always been need for effective Communication. System Design Steps: (Web/internet environment.) o The Temperature and pH Monitoring VIs will continuously measure the temperature and pH of the water sample and store the data in the specified file. (Data Storage) o This will alert the clients, when the temperature or the pH has exceeded the alarm set point. ( Alert System) o Implement a web enabled, multi-platform system for monitoring and controlling. (Web/internet environment.) o Develop the software for this which can handle data collection, data storage and retrieval and process control modules. o ASP.NET programming using VB.NET is used to create a portal which can be accessed from Client Computer. The Control VI and Monitoring VI‘s front panels can be accessed remotely.(Web Publishing Tool) o On the Client Computer, the portal is opened and the username and password credentials are specified which provides the client with the access to the Monitor and Control VI. When the client requests for the control the sever grants him. The client can choose to open the monitor VI or the control VI. Part I : Case Study: Data acquisition system • Generate Signal using Test circuit • Use Lab view software 8.6 Version • Acquire Signal , Analysis and Produce using DAQ Assistant • DAQ card • 60 MHz Digital Storage Oscilloscope(DSO) • Generate LVM (Lab view Measurement) File Measurement File X_Value Voltage_0 Comment 0.000000 4.858877 0.001000 4.841073 0.002000 4.837258 0.003000 4.872866 0.004000 4.824541 0.005000 0.000935 0.006000 0.003479 0.007000 -0.000336 0.008000 -0.000336 0.009000 0.004750 0.010000 0.011109 0.011000 4.802922 0.012000 4.804194 0.013000 4.780031 0.014000 4.769857 0.015000 4.773673 0.016000 -0.001608 0.017000 -0.004151 0.018000 0.002207 0.019000 0.002207 Part II : Case Study: WEB ENABLED DATA AQUISATION SYSTEM HOW IT WORKS: Geological Site updates data about the recent information throughout the world frequently VI extracts the data from this Site and processes it The information comes as a text file which is broken down to Individual Arrays under the Data field like Date and Time, Latitude and Longitude etc. CONTD.. Data collected from the Site is saved into a file on the HDD for further use The recent information is separated and shown. A threshold value can be set using a Numeric Control on the Front Panel The magnitude of recent information is constantly Compared with the threshold value An alarm is sounded when the magnitude exceeds the threshold What is ASP ? Active Server Pages A series of objects and components that are executed on the web server ASP itself is not Object-Oriented. ASP can use objects but cannot define new objects like: Request Response Server Application Session ASP Page Execution You Request an ASP Page www.ocstc.org/default.asp Server finds the page Server executes ASP commands, converts ASP to HTML/XML as needed, processes HTML/XML Browser displays the page What is Microsoft .NET? .NET represents an advanced new generation of software that will drive the Next Generation Internet. Its purpose is to make information available any time, any place, and on any device. ASP.Net A series of objects and components that are executed on the web server: Web data is read- if there is error, error is displayed. c:\data hour.txt create & replace c:\data day.txt create & replace Both are compared with threshold Array is generated. c:\image.jpg create & replace BLOCK DIAGRAM OF THE VI FRONT PANEL OF THE VI Conclusion The optimization techniques are presented here is real world Problem to analyze and measure different parameters of a system. We can simulate these systems using available simulators and virtual system modeling tools. Easy way of learning layout design. Key challenge: optimization of design metrics i.e. Design metrics compete with one another. References Text/Ref. books:- S. P. Eugene Xavier, Statistical Theory of Communication. PROTEUS VSM Manual. Lab-View Tool To extract Information from US Geological sites….. Technical Web Sites: www. ni.com http://earthquake.usgs.gov/ Thank You ! ?
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