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Design of a tropical rain - Disaster alarm system: A new approach based on wireless sensor networks and acoustic rain rate measurementsby: N. J. C. Libatique, G. L. Tangonan, R. Gustilo, W. K. G. Seah, C. Pineda, M. L. Guico, G. Abrajano, R. Ching, J. L. Zamora, A. Espinosa, A. C. Valera, R. Lamac, H. Dy, J. Pusta, E. M. Trono, A. Gimpaya, J. R. San Luis, S. J. Gonzales, A. T. Lotho
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE (21 July 2009), pp. 1337-1340.
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AbstractThis paper discusses the design of a broadband wireless network infrastructure which itself is a rain measurement platform for applications such as disaster alarm and sudden hazard decision management systems. A sensor testbed is setup which consists of a hybrid broadband wireless network in conjunction with real-time acoustic rain rate point sensors and complementary rain gauges. The testbed simulates the commercial deployment of a line-of-sight wireless backbone (implemented via a 26 GHz line of sight link) and broadband wireless access network at 5 GHz and 2.4 GHz. Combined wireless signal fade, acoustic power and tipping bucket rain rate measurements over a several month span indicate the feasibility of using rain-induced attenuation and fade durations to trigger imminent-hazard alerts.
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