Design and implementation of a home embedded surveillance system with ultra-low alert power

Dept. of Electr. Eng., Fu-Jen Catholic Univ., Taipei, Taiwan
IEEE Transactions on Consumer Electronics (Impact Factor: 1.09). 03/2011; DOI:10.1109/TCE.2011.5735496
Source: IEEE Xplore

ABSTRACT In this paper we design and implement a home embedded surveillance system with ultra-low alert power. Traditional surveillance systems suffer from an unnecessary waste of power and the shortcomings of memory conditions in the absence of invasion. In this design we use Pyroelectric Infrared sensors (PIR) and pressure sensors as the alert group in windows and doors where an intruder must pass through. These low-power alert sensors wake up the MCU (Micro Controller Unit) which has power management for the ultrasonic sensors and PIR sensors indoors. This state transition method saves a large number of sensors required for the alert power. We also use the Majority Voting Mechanism (MVM) to manage the sensor groups to enhance the probability of multiple sensors sensing. After the MCU sends the sensor signals to the embedded system, the program starts the Web camera. Our sensing experiment shows that we reduce the system's power consumption.

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