project report on bidirectional visitor counter pdf
#1

hi i am gopika,i would like to get details about survey on bidirectional visitor counter
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#2
A counter that can change its state in any direction, under the control of an ascending selector input, is known as an up counter. The circuit given here can count numbers from 0 to 9999 in up and down modes depending on the state of the selector. It can be used to count the number of people entering a room in the upstairs mode at the front door. In the descent mode, you can count the number of people leaving the room reducing the count at the exit door. It can also be used on the doors of parking areas and other public places.


This circuit is divided into three parts: sensor, controller and counter. The sensor would observe an interruption and provide an input to the controller that would operate the counter in up / down mode depending on the setting of the selector. The same count is displayed on a set of 7-segment displays through the controller.

This is a simple bi-directional visitor counter circuit diagram that uses an 8051 microcontroller that helps count the number of people entering or leaving a room and shows the total count on the board. It is very useful in our real life, especially in parities, meetings, etc.

[Image: FXUZA6RHUJRMCUG.MEDIUM.jpg]
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