This application finds need in the lift where we can count number of people entering or exiting the lift and display the count and after a threshold value alarm we activate to show overload.
This kit proposes automatic detection of person. The proposed auto detection of object is done using the IR sensor to indicate the entry and exit of person. Microcontroller continuously monitors the infrared receiver. When any object pass through the IR receiver then the IR rays falling on the receiver are obstructed, this obstruction is sensed by the micro controller. If the intensity is less and the IR sensor at entry gate sends a signal (which signifies person’s entry) then a signal is send to controller.
Beside this the signal from IR entry increases the counter by 1 which is displayed on the LCD (signifies person’s entry).Similarly, signal from IR exit will decrease the counter that will be displayed on LCD. If the counter increases a value the alarm will activate. The person count is displayed on LCD and if the number increase a threshold the alarm will activate.