Prototype Of Light Automation System
1. Hardware testing
A prototype of street lighting automation system is developed and the whole prototype design is as shown in Figure-9. The design of whole project was done with 12 LEDs, 4 PIR sensors and 1 LDR sensor. All the wiring and connection are connected to Arduino board. This was done by calibrate part by part which is started with LDR sensor, then PIR sensor and lastly LED as light module. During day, all LEDs and PIR sensor is turned off. This condition is shown in Figure-10.
Figure-9. Prototype of proposed design project
Figure-10. Condition during day
During night, whereby LDR sensor detects light intensity, 4 LEDs at the junction will turned on. This is called as Mode 1. Figure-11 shows the …show more content…
Table-2 shows the expected power saving after making comparison between usage of LED and HPS lamps. From this calculation, comparison in term of energy efficiency is obtained between High Pressure Sodium (HPS), type of lamps which is commonly used in public street lighting with Light Emitting Diode (LED) for automation system which operate according traffic flow by sensing the movement within certain time. The comparison with other LED is also made, which used for public street lighting that operated within 12 hours from 7.00 p.m. until 7.00 …show more content…
A working prototype of street lighting automation system is successfully built using Arduino Uno as the microcontroller which is one of the cost effective development board. The Arduino UNO makes the ease integration of lighting control and sensors into different components of group which input, output and controller. Two inputs are used in this project are LDR sensor and PIR sensor which will send the data to controller to turn on LED which is represents as light module. LDR sensor and PIR sensor are two sensors used indicate as input and specifically functions according Mode 1 and Mode 2. Mode 1 is activated when LDR sensor detects night and automatically 4 LEDs is turned on. Mode 2 is activated when PIR sensor detects any movement of vehicles or pedestrians. Usage of PIR sensor as the input gives energy saving to the system since LED turn on only when there is movement from vehicles, thus, the usage of power consumption by LED is decrease. This is proven in calculation of Simple Payback Period (SPP) which increasing the saving per