Data Acquisition System

This application is used for the specific scientific applications like

Thunder Capturing System
Atmospheric Electricity Monitoring System.

The Special device having 12 bit ADC is attached to the computer, which senses the charge and sends data to the serial port of the computer. This data is in the form of interrupt, which is served by the program and is termed as Online Data. This data can be HEX, ASCII or Binary depending on the chip used in the device. This online data is processed in three ways On Line Numerical Display
On Line Graphical Display
On Line Storing Of Data

The speed of this data, and channels to be monitored depends upon user's choice. Thus the program can orient the external device as per requirement. This part is termed as System Control. This system control orients the device in the following manner
Vary the number of channels
Vary the speed of sending on line data
Change the groups, having similar parameter for the scientific process.

Further the stored data can be combined in a one file, for viewing at later time by the scientists. This data is termed as History. The operations possible on the history data are:
Making a single file of the specified period.
Make an ASCII format file,for viewed offline, without starting application.
View the graph of the history
View the tabular view of the history
Running the graphical view according to the user speed.
Fast forward, or slow motion facility

A special ActiveX component is developed for displaying the data in the graphical view.

The X - axis of the component displays relative time in HH: MM: SS format and the Y - axis of the component displays the values of the captured data. The component has another facility of running the history data as per user required speed. Thus the time and the values which are shown in the graph are related with the speed setting that user has selected.

Technology:
Visual Basic 6.0, Visual C++(SDK) 6.0, Win32 API for Visual Basic 6.0 and MS-Access 2000.

Duration:
3 Months

Team Size:
One Electonics Engineering Consultant and
Two Software Engineers