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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