This thesis proposes a new mobile robot architecture and investigates the motion control subsystem of that architecture. The high cost of such systems, both to acquire and maintain them, prohibits their adoption. The mechanical constructional design and circuitry interfacing with microcontroller of robot has to be presented in this project along with computer side programming.Ĭlassical mobile robot control systems are not suitable for use in industrial environments. For controlling the two DC motors to navigate through its path, microcontroller is used. For each front and back wheel motors are used to rotate along the path. For turning of robot, differential steering is used. From the computer, the path is transmitted and sensed by microcontroller. Motor is used for the turning movement of Robot. H-bridge circuit is used to control the speed of the robot. And the robot is developed by using embedded application. And for tracing the path, we have used line algorithm which is aim of this project are used. The window to draw the line on computer screen is developed using C# language. RF technology is used in this project that helps in transferring the path drawn on the computer screen for the movement of Robot. By eliminating path, background and sensors we have reduced the complexity present in the existing system. With slight modification, that reduces the complexity. Proposed project designed to work similar to line tracking robot. Arrays of IR sensors are used for detecting the path. It is programmed to run on a black path on a white area and detects the turns and deviations and changes its movement appropriately. In the existing line follower robot, the robot operates as the name specifies. The robot is able to carry up to 600gms of component above while detecting line with identifying obstacles without any problem of changing its course on its designated pathway All over the robot costs 4500 BDT (Bangladeshi Taka)/4253.15 INR (Indian Rupees), 64.136 USD (United States Dollars). This follower with multiple modes has given power by a rechargeable lithium battery of 6 volts. The robot has three sonars connected in three ways round for better obstacle detection and two infrared sensors connection which undergoes with a connection of a motor driver IC (L293D). The design includes knowledge of Arduino programming, electrical circuit integration with the designed coding and some architectural as well as basic mechanical engineering knowledge for its development using Arduino Uno. So, altogether, it can be said the robot has capability to move following a black line while detecting obstacles three way round. This robot can identify obstacles rightward, leftward and in front obstacles while following its designated path on it pathway. It is like a robot car that follows a designated path. This line following robot has two distinguished modes, such as line following mode and obstacle detection mode. This paper describes the design and implementation of a Line following robot that follows a line which specifically is black line on white surface.
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