08-12-2012, 05:26 PM
OBSTACLE AVOIDANCE ROBOT
OBSTACLE AVOIDANCE.doc (Size: 22.5 KB / Downloads: 38)
ABSTRACT
This is an obstacle avoiding robot which works on the principle that on having obstacle in its path, it stops there before colliding with the obstacle and makes backward motion for some time and then takes left turn and follows its path. This all is carried out through infrared sensors. In infrared sensors we have a transmitter and a receiver. The transmitter continuously transmits infrared rays and on confronting obstacle, the rays are reflected and received by receiver connected in parallel order with transmitter. The receiver then sends the variation which it makes in voltage to comparator and then to microcontroller which further sends signal to relays for controlling motors. The term obstacle avoidance describes a set of software techniques that allow mobile machines, such as housecleaning appliances and other types of robots, to adjust their trajectory according to their surroundings.
Obstacle avoider is a key feature in any kind of robot, household appliance, pc peripheral, or toy that needs to move around autonomously, including:
• vacuum cleaners, lawn mowers
• toys cars, boats, tanks, animated animals
• remote web cameras, surveillance robots
• personal robot assistants.