21-06-2014, 03:25 PM
Obstacle avoiding robotic car on solar panel
Obstacle avoiding.docx (Size: 419.7 KB / Downloads: 42)
INTRODUCTION:
This particular robotic device is a combination of both mechanical and electronic automobile engineering. This system is made so that it can be used to detect and avoid obstacles successfully. This robot will be just like car that keeps on moving on solar panel in straight line until something comes in its path that’s when it decides to turns into some other direction so it successfully avoids the obstacle.
Obstacle avoidance:
In robotics, obstacle avoidance is the task of satisfying some control objective subject to non-intersection or non-collision position constraints. Normally obstacle avoidance is considered to be distinct from path planning in that one is usually implemented as a reactive control law while the other involves the pre-computation of an obstacle-free path which a controller will then guide a robot along.
INSPIRATION:
The inspiration behind this project was to learn new things regarding our domain. We wanted to do a project that was creative and practical but at the same time cost effective.
LITERATURE SURVEY:
To detect and to avoid encountered obstacles is an important issue and a key function for the robot body safety as well as for the task continuity. Good references related to the developed systems and proposed detection and avoidance algorithms can be found.
ADVANTAGES:
Real-time obstacle avoidance is one of the key issues to successful applications of mobile robot systems. Once these have been determined, the obstacle avoidance algorithm needs to steer the robot around the obstacle and resume motion toward the original target.
Autonomous navigation represents a higher level of performance, since it applies obstacle avoidance simultaneously with the robot steering toward a given target.
Here, the robot navigation is based on moving alongside walls at a predefined distance. If an obstacle is encountered, the robot regards the obstacle as just another wall, following the obstacle's contour until it may resume its original course.
Naturally, robot navigation by the wall-following method is less versatile and is suitable only for very specific applications. In this method, the algorithm tries to determine the position of the vertical edges of the obstacle and consequently attempts to steer the robot around either edge. The line connecting the two edges is considered to represent one of the obstacle's boundaries.
DISADVANTAGES:
• This robot has been successfully implemented for many obstacles like wall, chair, vessels, doors etc. but due to use of IR sensor it has certain limitation.
• We know that black and some other dark colors are good absorbent of light. IR light beams are also not reflected back from these colored objects resulting into obstacle remaining undetected.
• Also efficient application of robot is limited only to indoor purposes.
• The 12v battery used drains after using for a long interval and the time it takes to recharge is very long while using solar panels.
CONCLUSION:
This device brings out all that has been written in books to life and gives on an opportunity to test his mechanical and electronics and programming skills. This project also provides robot construction experience to beginners. This technology has application everywhere from industry to home appliances all that is required is to implement it correctly to get the best out of it.