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A simple glass breakage detector using the MSP430
Posted:?Jan 15, 2009 3:27 PM

This application report describes a simple glass breakage detector using the MSP430F2274 ultralow-po...[ View complete article ]


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A simple glass breakage detector using the MSP430

Posted:? Jan 15, 2009 3:27 PM
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This application report describes a simple glass breakage detector using the MSP430F2274 ultralow-power MCU. The algorithm is based on the spectral analysis of a typical glass breakage signal. The input signal spectrum, limited to a frequency of 20kHz, is processed for a valid glass breakage. Various signal characteristics such as peak content, number of zero crossings, and frequency composition are analyzed. Real-time signal processing is achieved by implementing and using a low-order bireciprocal lattice wave digital filter (LWDF). A glass breakage alert is indicated by an onboard buzzer and an LED. The entire setup is designed to operate at low power, allowing long battery life.
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(1) Reply:A simple glass breakage detector using the MSP430 Posted:? Jan 15, 2009 3:27 PM
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we need circuit layout and materials..
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