iSense

In this paper, we have studied the IT system (e.g. MS-outlook) that is used to book meeting rooms in a corporate environment. In the existing IT system, the status of meeting rooms is manually entered, and as a result, it is not reflected in real time in the IT system. This results in severe underutilization of resources (conference rooms) across the corporation, and wastage of electricity with the lights and air-conditioning system being operational even when the rooms are unoccupied. We have created a test bed of motes and analyzed the occupancy and electricity consumption data to estimate the under-utilization of conference rooms, and the wastage of electricity in the process. In order to eliminate these problems, we have designed a wireless sensor network based solution which results in two main benefits: (i) the utilization of the conference room is increased from 67% to 90% and (ii) electricity saving is equivalent to 16000 full grown banyan trees in a year.