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Design and Implementation of a Microwave Motion Detector with Low Power Consumption
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 Title & Authors
Design and Implementation of a Microwave Motion Detector with Low Power Consumption
Sohn, Surg-Won;
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 Abstract
In this paper, we propose a design of microwave motion detector using X-band doppler radar sensor to minimize the power consumption. To minimize the power consumption and implement battery operated system, pulse input with 2 KHz, 4% duty cycle is exerted on the doppler radar sensor. In order to simplify the process of working with ATmega2560 microcontroller unit, Arduino compatible board is designed and implemented. Arduino is open source hardware and many library software is published as open source tools. Smartphone app is also proposed and designed as a real-time user interface of the motion detector. The SQLite database on the Android mobile operating system is used for recording raw data of motion detection for post-processing job, such as fast Fourier transform (FFT). Bluetooth interface module is implemented on the motion detection board as a wireless communication interface to the smartphone. The speed of human movement is identified by post-processing FFT.
 Keywords
Low power consumption;Doppler radar;Motion detector;Arduino;
 Language
Korean
 Cited by
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