YY-Electron Wireless Home Security Alarm System Bedienungsanleitung PDF herunterladen (Seite 9)

International Journal of Smart Home

Vol. 7, No. 2, March, 2013

shown in Figure 7b. The output of the microcontroller becomes low after this period.

This serves as the purpose of power saving which reduces the cost of the monthly

electric bill. The lighting of the light bulbs is to warn the thieves that their presences

are known and notified.

The triggering of the second stage of the system retains on-state of the first set of the

light bulbs. A presence detector sensor is placed at the central of the house yard.

Basically, it detects the motion of the thieves when they pass through the central area of

the house yard. The output components such as camera will be turned off when there is

no triggering in the consequent stage. The light bulbs are turned on until the power

supply is cut off. The light bulbs are turned on and off by the signal transmitted from

the signal control unit. This is due to the signal control unit monitors the system’s

behaviour throughout the whole process of MHSS. When the magnetic sensor is

breached, it will send a high signal output to the PIC and the signal will be processed in

the GUI and the webcam will capture images then a text message with the attached

captured images which will be sent to the users and the law enforcement body. All the

three sets of light bulbs will be turned on and the buzzer will start making noises.

Figure 7. The Simulation of MHSS

5.2 Software Simulation

The operational process of MHSS has been validated by software simulation on

Proteus 7 Professional as shown in Figure 8. The system is simulated using a push

button while the LEDs denote the output components of the system. The simulation is

carried out as the preparation before real time process is executed. Each button is

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YY-Electron Wireless Home Security Alarm System Bedienungsanleitung Seite 9