The Design and Comparison of Central and Distributed Light Sensored Smart LED Lighting Systems

Pseudocode 1

Pseudocode of the control algorithm for the central sensor smart lighting system.

#define Default_Room_Reference_Light

Room_Reference_Light=User_Preference

Light=Light_From_ADC_Lightsensor

Presence_Sensor=Presence_From_Timer

if presence =1      //presence is sensed

smart_lightingt=1;     // start the saving system

else

smart_lighting=0;

end if

while smart_lighting=1 do

Measure_Light

error=Room_Reference_Light-Measure_Light1

if error>hysteresis then     //adjust lighting level

PWM=PWM-I;

else

PWM=PWM+I;

end if

end while