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<td><img src="img/vtg.png" alt="Vetroing" style="width:100px;hight:120px"></td>
<td style = "text-align: center; font-family: Verdana; font-size: 24px; color: blue"><a href = "http://vetroing.com"><b>VETROINŽENJERING<br>Čačak</a></br></b></td>
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<h1 style="color: blue; font-family: Verdana; font-size: 48px; text-align: center">WELCOME TO</h1>
<h1 style="color: blue; font-family: Verdana; font-size: 36px; text-align: center">INFORMATION SYSTEM FOR MONITORING<br>IN THE GREEN ENERGY SYSTEMS</br></h1>
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<td><b>Structure of information system<br></br></b>
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<td style = "width: 750px; text-align: justify; font-size: 16px"><i>The ISVTG information system is intended for monitoring the operation of wind generators and additional electricity generators based on solar panels. Wind generators are realized by the company "Vetroinženjering" from Čačak. The information system is primarily intended for monitoring the operation of wind generators and solar panels during their testing. Also, the information system can be used during the operation of such a source of "green" electricity. </i></td>
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<td style = "width: 800px; color: blue; font-family: Verdana; font-size: 24px; text-align: left"><br></br><b>Description of the information system<br></br></b></td>
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<td style = "width: 1100px; color: blue; font-family: Verdana; font-size: 16px; text-align: justify"><i>The information system consists of three parts: sensor subsystem, communication subsystem and server subsystem. The sensor subsystem provides identification of the monitored parameters. The communication subsystem provides communication between the sensor and the WEB server. Finally, the server subsystem enables the memory of wind generator operating parameters and wind distribution to end users. </i></td>
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<td style = "width: 800px; color: blue; font-family: Verdana; font-size: 20px; text-align: left"<br></br><b>Sensor subsystem<b><br></br></td>
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<td style = "witdh: 800px; color: blue; font-family: Verdana; font-size: 16px; text-align: justify"><i>The sensor subsystem consists of three separate blocks. In the first block, atmospheric parameters are identified: air temperature, air pressure and relative humidity. Based on the given parameters, the altitude at which the wind generator is located is determined. Also, the wind speed is measured in this block, which is one of the most important parameters for the successful operation of the wind generator Finally, in this block there is also a sensor that measures the level of sunlight.<br></br><br>In the second block, the mechanical parameters of the wind generator are identified: wind turbine shaft rotation speed, generator shaft rotation speed, generator temperature.</br><br></br><br>In the third block, the electrical parameters of the wind generator are identified. They include alternating voltages of each of the phases of the generator, direct voltage at the output of the three-phase rectifier, direct current at the output of the three-phase rectifier. Voltage and current values used for service purposes will be measured in this block. </br> </i></td>
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<td style = "width: 800px; color: blue; font-family: Verdana; font-size: 20px; text-align: left"<br></br><b>Communication subsystem<b><br></br></td>
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<td style = "witdh: 800px; color: blue; font-family: Verdana; font-size: 16px; text-align: justify"><i>The communication subsystem serves to connect the sensor subsystem with the WEB server on which the corresponding application is executed. As a rule, wind generators are located in places where it is not possible to establish a wired connection to the Internet. That is why it is best to make this communication through a mobile modem. Of course, it is assumed that there is a mobile phone network in the place where the wind generator is located. Given that the sensor blocks are spatially distant from each other, it is necessary to ensure their connection with a mobile modem. This connection is made using the WiFi protocol. </i></td>
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<td style = "width: 800px; color: blue; font-family: Verdana; font-size: 20px; text-align: left"<br></br><b>Application subsystem</b></br></br></td>
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<td style = "witdh: 800px; color: blue; font-family: Verdana; font-size: 16px; text-align: justify"><i>Storage of data on wind generator operating parameters is done on the WEB server. In addition to data storage, the corresponding WEB application performs additional processing of the collected data and its distribution to the end user. Data is presented to users in tabular and graphical form. </i></td>
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<td style = "font-size: 48px; color: blue" ><a href = "http://192.168.1.22/projects/isvtgrs/isvtgrs.php">🡄</a></td>
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