I want the information about PLC based automatic door opening and closing system........will u plz sent me abstract of it. thank you[/color][/size][/font]

automatic door open and closing system using plc abstract

Automated Door Opening and Closing Systems

Air powered, flush-mounted automatic trailer door opening systems that open, close, and lock your trailer with the tough of a button ensuring improved product safety and security

Payback
Our products provide an exceptional and quick return. Depending upon your workload, our automatic door operator can save over $10,000 per year for the life of the trailer.

Call us for further information and case studies.

Features
Automatic door operating system
Remote controlled push-button operation
Flush mounted (no protruding parts)
Pneumatically operated with onboard compressed air
Automatic rear and side door locking for high security
Consistently and easily keeps doors closed and locked
Retrofitted or OEM installations
Low maintenance requirements
Benefits
Improved product safety and security
Time and motion savings
Energy savings
Maintenance savings
Insurance savings
Injury prevention savings
Litigation savings
Decrease product spoilage and theft
Employee satisfaction and retention
Adress regulation requirements

The project is designed for automatic door opening system using PIR sensor. Opening and closing of doors is always a tedious job, especially in places like shopping malls, hotels and theatres where a person is always required to open the door for visitors.

This project proposes a system of automatic opening and closing of door by sensing any body movement near the door.This is achieved with help of a PIR (Passive Infrared) sensor. A live body generally emits infrared energy which is sensed by the PIR sensor from a considerable distance.This sensing signal is fed to a microcontroller to operate a door motor through motor driver IC.

When a body approaches within the operating range of the sensor, it sends a logical command to open the door. The door automatically closes with a fixed time delay. If there is no further movement within the PIR operating range. Interrupt signals are used through limit switches to avoid locked rotor condition of the motor.

Further this project can be enhanced interfacing a counting arrangement for keeping a record of entry and exit of people at particular place. This can be achieved by interfacing the system with an EEPROM (non-volatile memory) to avoid loss of stored data even if the power fails.