Week 7: Motion Sensing Development Circuit

Week No: 7
Date: 8/3/2012


Title of Activity: Motion sensing development circuit


Objective:


1) To realizing what have been plan before.
2) To integrate with other circuit to make this project work.
3) To sensing movement at certain places
4) To detect intruder


Content / Procedure:


1) Buy the motion PIR sensor from store.
2) Read the user manual and understand it.
3) Try to incorporate it with the main circuit.


Result and analysis: 


1) PIR sensor means Passive Infra-red sensor.


2) This motion PIR sensor is a pyroelectric device that  can detect infrared rays released by human body motion within the detection area of 5 meters.


3) The PIR sensor can sense even in night mode.


4) If there is an intruder who wish to enter the factory, the microcontroller will be activated high ‘1’ and send notification to the worker stating that intruder in factory.


5) The advantage of PIR sensor is single bit output, small size makes it easy to conceal, compatible with all types of microcontrollers, 5 v till 20 v operation.


6) Calibration - The PIR Sensor requires a ‘warm-up’ time in order to function properly. This is due to the


settling time involved in ‘learning’ its environment. This could be anywhere from 10-60
seconds.


7) Sensitivity - The PIR Sensor has a range of approximately 5 meters. The PIR sensor can sense object up to 120° within 1 meter range.


Conclusion: 


1) This PIR sensor is suitable to be used in my project because it is simple to use, easy to found and cheap.




Picture of PIR motion sensor: 

Figure 1: Product Dimension 

Figure 2: Product Layout

Figure 3: Product Actual Look