Live IGSS Data on Web Pages

If you want to show live IGSS values on web pages, do not despair. You can very easily connect to the IGSS Server and fetch live IGSS data. Here's a couple of real-life examples for inspiration.

Case 1: Cassini web server and Adobe Flash solution

The challenge

Danish system integrator, YIT A/S, are experts in the district heating business. Solar heat is becoming more and more popular in Denmark with the number of private and utilities plants now exceeding 30,000. Solar heat is used effectively in district heating plants. This is where YIT came into the picture. They were asked to provide a web page showing current and historical solar heat data from different plants.

The solution

YIT chose to customize the default page of the Cassini Web Server to make it understand IGSS syntax. This allows them to extract live data from the IGSS ODBC Server using JavaScript. The data can then be presented, as required. YIT chose an Adobe Flash country map of Denmark to provide an overview. Clicking a red dots leads to a historical data page in HTML format. The principle of the solution is shown here.

The result

Business professionals and private people interested in solar heat can now inspect current and historical values on http://www.solvarmedata.dk/

The first page shows a map of Denmark with the solar heat plants plotted in. Hovering the cursor over the red dot provides these values in a tooltip:

Current solar heat production
Current solar heat production in square meters
Current solar radiation

Clicking the dot leads to a sub-page showing the historical values.On this page the user can even:

Download historical values in CSV format
Show graphs of historical data (see below)

Customized web server solution

If you want to try out the Cassini web server solution, you can do it right now.

7T has modified the default start page of the web server to understand IGSS syntax. With a very simple syntax, you can thus extract live data from the IGSS ODBC Server. The data can be presented as you like on the web.

Start by reading the instructions in the file, How to set it up.htm.

Download Code and Help

Case 2: SQL Server and ASP solution

The challenge

Icelandic system integrator, Raftakn, was faced with the challenge of providing round-the-clock web-based supervision of a hot water distribution plant in Iceland.

The solution

Raftakn chose to extract live data from the IGSS ODBC Server into an SQL Server. Using ASP code they could now extract the data from the SQL Server and present it live on a web page. The drawing shows the chosen solution.

The result

Operators, plant managers and other staff can now view the key values from the hot water distribution plant in a standard web browser on this URL: http://www.hef.is/default.asp?sida=igssdata.asp

The values shown are primarily flows, water temperatures, wind velocity and direction.

The picture shows the river running between the two small towns of Fellabær and Egilsstadir. The red line is the hot water pipe from Urridavatn where the 75 degrees Celsius water is extracted from approx. 1,000 meters depth.