The Hindu Business Line : `Wireless sensors ideal for vehicle tracking'

THE Chairman and Managing Director, Electronics Corporation of India Ltd (ECIL), Mr G. P. Srivastava, has said wireless sensor networks have varied applications and can be used for monitoring vehicles and the structural fitness of dams.

Mr Srivastava inaugurated a workshop on `Wireless sensor networks' organised by the Centre for Development of Advanced Computing (CDAC). He explained how the environment today has become increasingly dependent on gadgets in which security-based information systems have become mainstream.

"Wireless or not, whether it was Local Area Network (LAN) or Wide Area Network (WAN), networks came in different forms that made them very complicated and required a lot of knowledge on the part of managers," he said.

Field-testing of wireless sensor networks needs attention because environments are becoming harsher by the day. Given the small size and relatively low costs compared to the GPS (global positioning system), the wireless sensors could be ideally suited to track vehicle movement and also gather intelligence, he said.

Dr Pallapa Venkataram, an expert in protocol engineering from the Indian Institute of Science, Bangalore, said ubiquitous computing is the method of enhancing computer use by making many computers available throughout the physical environment, but making them effectively invisible to the user.

Mr Mahesh U. Patil, an expert from CDAC, explained how motes or wireless sensors are becoming smaller in size and cheaper and how they could be used to monitor the structural fitness of huge buildings. Citing an example, he said a series of motes implanted in structures and networked to a central information terminal would transmit a steady flow of information that could be monitored.

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