Research

I am currently involved in DST funded project entitled “Development of an Intelligent Recognizer of Component Analysis of Manhole Gas Mixture” in Collaboration with Bengal Engineering and Science University, Shibpur of amount Rs. 33.00 lakhs (approx.) since October 2010. My researches are focus on automatic content tagging and automatic content retrieval inside videos.

Earlier I have successfully executed an AICTE sponsored project on "Modernization and Removal of Obsolescence (MODROBS)" of amount Rs. 10.00 lakhs for the Department of Computer Science & Engineering, Kalyani Government Engineering College as the Head of the concerned Department. The project started in March 2004 and completed in February 2006

About ongoing project: Intelligent Recognizer of Component Analysis of Manhole Gas Mixture

The purpose of the present endeavour is to develop a system capable of detecting the danger level of toxic gases in the composition of constituent gases present in a manhole gas mixture and sending visible/audible alarm. The constituent toxic gases are (i) Hydrogen sulphide (H₂S), (ii) Methane (CH₄), (iii) Carbon dioxide (CO₂), (iv) Carbon monoxide (CO) and (v) Amonnia (NH₃).

Detection of hazardous gases in an excavation/underground atmosphere, in excess of allowable limits disrupts normal work activities and sometimes may cause fatal accidents leading to loss of human lives.The components present in the gas mixture of the sewage/manhole are typically carbon dioxide, carbon monoxide, hydrogen sulphide, hydrocarbon and nitrogen oxides, gasoline vapours and sulpher dioxide. These components, when they approach or exceed the LEL, are hazardous to human system to different extents.

The aim of the proposed scheme is to design an “intelligent” recognizer that is capable of identifying/detecting presence of constituent gases from a mixture of gases typically present in manholes/sewage. However, most of the gas components are tolerable to human systems to a certain extent and become hazardous beyond the limit even posing life threat. There are some gas sensor arrays each element of which can sense a particular component gas. Different sensors in the array are responsible for sensing different component gases. However, one of the major problems associated with such array is the problem of cross-sensitivity. Due to this, finding the actual proportion of a component gas in a mixture becomes difficult. As such the input to our system is a mixture of gases present in manholes. Our proposed system would be made intelligent so that it can

(i) sense what are the individual gas components present in the mixture and

(ii) whether any of the gas component is beyond the tolerable limit of hazard to human system.

(iii) design and fabricate the necessary electronic circuit and structure for detecting the presence of any hazardous gas component crossing LEL and raising alarm in that situation.