AUTOMATIC SENSOR CONTROLLED LOCOMOTIVE PAINT SPRAYER
This project was appreciated by many professors and is one of the best innovative project from my side. "AUTOMATIC SENSOR CONTROLLED LOCOMOTIVE PAINT SPRAYER" is an economical and cost effective project.
Challenges faced in the project :-
One of the Major challenges faced in this project was determining the current drawn by the motor and the rating of the motor to be used to pull the load. When Load increases the current drawn by the motor also increases. As a result the motor driving chips which I used (L293D) was burnt due to the high current drawn by the motor. With great effort and alternative trial and error methods the solution for the obstacle was obtained. Taking this task gave me the opportunity to conduct serious research and produce high-quality work. Moreover, while documenting the entire process, I learned a lot about various methodologies and testing techniques.
The main aim of this project is to create a more risk free and technologically advanced environment around us. This project helps in reducing risk of life of daily workers in buildings. The job of painting the outer walls of tall buildings involves high risk and this can be reduced by the use of AUTOMATIC SENSOR CONTROLLED LOCOMOTIVE PAINT SPRAYER. This device is based on principles of sensor detection and mechanical motor movements. This device is simple in construction and in its working. Due to the reduced complexity of the device we can expect less amount of error in the expected output. Also the device focuses on reducing the amount of spray used by using only limited amount with controlled movement over the walls. This reduces the capital investment and with large scale usage has the project as greater benefits.
ABSTRACT:-
In this 21st century, technology plays a vital role in our day to day lives. As technology is advancing, human life becomes easier and comfortable. Yet some risks are still involved in jobs like painting of outer walls of buildings. In case of tall buildings, painters would have to hang in ropes attached to top of the building in order to paint its outer walls. This involves accidents and sometimes even loss of life. In order to reduce the risks involved in painting of buildings, we are hereby introducing a new device, Automatic sensor controlled locomotive paint sprayer, which can paint the outside walls of a building without manual labor or risks. Also this device is automated to paint accurately and provide better results than manual work. The motion of the device will be achieved by two perpendicular movements along the sprayer or roller attached to it. The horizontal (x-axis) movement will be achieved by the rotation of motor on the device. The vertical (y-axis) movement will be achieved by a pulley and rope setup fixed with the device and is driven by a 10 kg, 100 rpm DC-motor. The perpendicular motions will be controlled by ATMEGA 8 microcontroller by means of an ultrasonic sensor (HC-SR04). This sensor will send out 8 TRIGGER signals (40 kHz ultrasonic burst), once for every 10 microseconds. These ultrasonic bursts on detecting the sprayer reflect back to the sensor. Thus ECHO pin of the sensor will become HIGH state on receiving the reflected signal . Using this, the distance will be calculated and the perpendicular movements are controlled. The paint spraying operation is also controlled by the ATMEGA 8 microcontroller along with L293D motor driver IC and relay driven circuit. As the paint is sprayed by a programmed machine, overlapping and wastage of paint can be reduced to a great extent. Therefore this method can improve efficiency of the paint being used. The spraying circuit is controlled through an android device by paring through Bluetooth module of the device and the Bluetooth module (HC-06) connected to ATmega 8 microcontroller. Here two ATmega8 microcontrollers are used- one is for movement of the controller another used for the Spraying circuit. The spraying circuit is controlled by means of wireless transmission of data through HC-06.