Abstract- Automatic pneumatic door using IR sensors, serves to automate the door operation mechanism using pneumatic technology, Arduino microcontroller and infrared sensor.
The methodology applied in the project is divided into three parts, firstly, designing and manufacturing the door with the calculated dimensions, secondly, developing an Arduino program to operate the door and thirdly, interconnecting the different components to work together in a cohesive way. .
When an object enters or leaves the range of the sensor, a signal is sent to the Arduino which controls the electro-pneumatic circuit to open or close the door. The importance of this system is door automation that can be customized according to industrial, commercial or domestic needs.
Based on the results obtained, a small prototype was designed and an appropriate code was developed taking into account the ambient light conditions.
GOAL
The objective of this project is to design and manufacture an automatic pneumatic door using IR proximity sensors. The door should open automatically when it detects a person standing in front of it and, after the person passes, it should close automatically. The door opens only after the person has been present for a stipulated period of time. If, after detecting a person in front of you, the person does not cross the door and goes in another direction, the door should close after a predefined “timeout” limit. We are using microcontroller/Arduino to provide the operating logic of the gate. A big advantage of using microcontroller/Arduino is that we can use the same port for different applications just by changing the programming logic without any change in hardware. In this project we are designing a basic prototype of an automatic pneumatic sliding door that can be modified for various industrial and commercial purposes.
catia 3d model pneumatic door open design METHODOLOGY
The door is designed to slide on the appropriate slider and operates on pneumatic air pressure. It consists of two IR proximity sensors that detect the presence of obstacles in your path. Each sensor consists of a sending and receiving unit. When the transmitter signal is obstructed it means the presence of an obstacle. The signal from the IR sensors is the input of the Arduino. This signal goes to the Arduino which has a specific program written for it. The pneumatic actuator works according to the Arduino code set. The cylinders retract when the obstruction is detected by the IR sensors thus opening the door and expand when the obstacle is detected by the second IR sensor located on the other side. This pneumatic operation is controlled by suitable electropneumatic circuit. The second IR sensor is installed at the other end of the door. It detects whether the object that entered the door exited it successfully. This signal is sent to the Arduino and it has a set of codes to control this operation.
MANUFACTURE OF THE SLIDING DOOR
WOODEN FRAME
Wooden frames are made up of six different pieces of wood that are initially cut to approximate length and planned to obtain a smooth, parallel surface. The four pieces are joined together to form a rectangular shape to accommodate two doors. Two more pieces of wood are used as support so that the door frame can be fixed inside and the door does not tip over. The four frames are joined together using four dovetail joints. Then, glue and nails are used to secure the joints and increase the strength of the dovetail joints.
SLIDING DOOR AND SLIDING GLASS CHANNEL
The doors are made in a dimension that adapts to the groove of the wooden frame. The door is made of plywood according to the desired size. The glass sliding channels (E channels) are attached to the inside of the rectangular frame with nails so that the plywood sheets can easily slide over them.
ELECTRICAL COMPONENTS
1. Arduino/microcontroller
2. Two IR proximity sensors
3. Two 5V 5-pin relay switches
4. Welding equipment
5. Jumper Wires
6. Single Core Hookup Wires
7. 24V DC Power
8. Banana pin
9. Breadboard
CONCLUSION
The objective of this project was to design and manufacture an automatic pneumatic door using IR sensors. Pneumatic systems provide motive power in a cheaper, safer, more flexible and reliable way than orthodox electric motors and actuators. We have designed a pneumatically operated automatic door using IR and Arduino sensors.
The door will open whenever the IR 1 proximity sensor (mounted on the entry side of the door) detects the object and will close only if that object has passed through the door and the IR 2 sensor (mounted on the exit side of the door) senses it. The entire phenomenon is controlled by a set of codes that we wrote on Arduino. Arduino basically provides the logic for the entire operation which can be modified according to the user's needs.
The door was tested in the automation laboratory and the program was modified according to the ambient lighting conditions in the laboratory. The door opening and closing was smooth and the IR sensor detected every object without any failure. The prototype and program can be modified as needed and this project can be applied in the industrial, commercial and domestic sectors.
As the entire world is moving towards automation, automatic pneumatic sliding door has a huge role to play in future industries, shopping malls and shopping centers, buses, airports, educational institutions, hospitals and also in home use. It can be improved by adding techniques like face detection, retina detection, etc. and can be used to increase the security of important locations. The pneumatic part will ensure that the door is cheaper and runs smoothly compared to other automatic doors.
