Development of web based gas monitoring system using LabVIEW

This paper presents the development of the web based hazardous gases monitoring system. In this paper, the National Instruments LabVIEW software along with a low-cost microcontroller based data acquisition (DAQ) card is used for real-time remote monitoring of some of the hazardous gases like carbon monoxide and carbon dioxide present in the environment. For implementation of proposed scheme, the parts per million (ppm) data values of the above gases are obtained from the data acquisition card using the respective gas sensors and are serially communicated to LabVIEW software. The measured ppm data values of the gases are conditioned and calibrated with the standard values in the LabVIEW environment. Finally, the data values of gases are monitored at the test condition and are continuously stored in MS Excel database for data warehousing. The front panel information of recorded parametric data and waveforms is continuously provided to the remote operator using web publishing tool of LabVIEW.