Best project for Electrical in 20-21

1. Automated Elevator with Overload Alert Using PLC

This system helps to indicate limit of an elevator, which is how many people can be inside an elevator at a particular time. The system displays the number of people inside an elevator with the help of 7 segment display. Each pair consists of 2 sensor pairs placed at a certain distance from one another in the opposite direction. The system includes Infrared Sensor pairs which are placed near the elevator door. These sensors senses when a person enters an elevator and it opens the door of the elevator and simultaneously increments the counter for the number of people entering the elevator.

The IR transmitter is used to transmit IR rays straight to the receiver which receives the input and feeds this to PLC(Programmable Logic Controller) The PLC(Programmable Logic Controller) receives the inputs. At this time the system also counts the number of people present and increments a counter on each arrival and decrements when a person exits from the elevator. The system even includes a buzzer for demonstrating an alarm.

The buzzer starts ringing as soon as more number of people enters the elevator than the limit of the elevator which is already set and the buzzer stops ringing only when the people inside the elevator come outside the elevator. This will cause the counter to be decremented and the buzzer stops ringing as soon as the counter is less or equal to the limit of the elevator set.

Connect all the hardware Equipment by using safety devices and do the plc programming in plc Software, Then dump the program in plc module. If everything is correct then proceed to on the equipment.

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