INZEDS: An Integrated Explosive Detection System Using Zigbee Based Wireless Sensor Network and Nanotechnology

Abstract

In today’s scenario, explosives detonated in population dense public places are highly destructive. An Explosive detection mechanism which enables detection of explosives amidst dense population is thus the need of the hour. The current detection systems such as ion mobility spectrometer, X-ray imaging have many disadvantages. There exists no system that continuously monitors an area for presence of explosives. Thus a new system that would monitor an area continuously for the presence of explosives is proposed. This paper uses powerful nanosensor to detect several kinds of explosives from any distance. It is made up of arrays of silicon nanowires forming a nanotransistor to detect explosives. The nanowires are coated with an electron-rich molecular layer that binds to the explosive due to the electron transfer from the electron-rich amino groups of the layer to the electron-poor explosive. This change in the charge distribution leads to an abrupt change in the conductivity of the nanowires that indicates the presence of explosive. This information will be passed using Zigbee Wireless Standards to the security agency that is nearest to the explosive position. The main advantages of the proposed scheme are its small size, reasonable operational area, higher throughput and lesser probability of false alarms.