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In this paper we design and implement an embedded surveillance system by use of ultrasonic signal coding of ultrasonic sensors with multiple pyroelectric infrared sensors (PIR) to detect an intruder in a home or a storehouse. The PIR sensors are placed on the ceiling, and the ultrasonic sensor module consists of a transmitter and a receiver which are placed in a line direction; however, ultrasonic...
In this paper we design and implement an embedded surveillance system by use of a multi-frequency relay of ultrasonic sensors with multiple pyroelectric infrared sensors (PIR) to extend the sensing range in a home or a storehouse. The ultrasonic sensor module consists of a transmitter and a receiver which are placed in a line direction; however, ultrasonic sensors with the same frequency are disturbed...
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...
In this paper we design and implement an embedded surveillance system by use of multi-frequency ultrasonic sensors with multiple Pyroelectric Infrared sensors (PIR). The ultrasonic sensor module consists of a transmitter and a receiver which are placed in a line; however, ultrasonic sensors with the same frequency are disturbed by crosstalk with each other and have a high miss rate. To overcome these...
In this paper we design and implement an embedded surveillance system with multiple Pyroelectric Infrared sensors (PIR) and ultrasonic sensors which turn on the embedded surveillance system according to the signals triggered by their majority voting mechanism (MVM). The PIR sensors are used to detect changes in human temperature and environment temperature, but have a high miss rate in the case of...
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