18-08-2014, 12:38 PM
Whenever a person approaches say to go upstairs, the weight sensors in between the path senses the weight of the person & continues the trigger of the timer I.C. i.e. it triggers the timer I.C. & the escalator starts working. It works/runs upto the specified time set by the potentiometer. Meanwhile the time is set such that the escalator starts working suddenly after the weight sensor triggers the I.C. & stops a few moments after the person has arrived the destination, thus the time is calculated with a bit of delay period before approaching and after arrival.
Whenever a person approaches say to go upstairs, the weight sensors in between the path senses the weight of the person & continues the trigger of the timer I.C. i.e. it triggers the timer I.C. & the escalator starts working. It works/runs upto the specified time set by the potentiometer. Meanwhile the time is set such that the escalator starts working suddenly after the weight sensor triggers the I.C. & stops a few moments after the person has arrived the destination, thus the time is calculated with a bit of delay period before approaching and after arrival.