03-03-2011, 01:08 PM
REPORT2.doc (Size: 1.82 MB / Downloads: 287)
INTRODUCTION
Sonar ( sound navigation and ranging) is a technique that uses sound propagation (usually underwater) to navigate, communicate with or detect other vessels. There are two kinds of sonar: active and passive. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used in air for robot navigation, and SODAR (an upward looking in-air sonar) is used for atmospheric investigations. The term sonar is also used for the equipment used to generate and receive the sound.
A sound gets emitted, then you 'see' your surroundings based on the sound coming echoing back. This is because sound takes time to travel distances. Farther the distance, the longer it takes for the sound to come back.
In World War II, the Americans used the term SONAR for their systems, coined as the equivalent of RADAR .
The main aim of the project is to design a microcontroller based sonar. TSOP 1738 module is used here to avoid obstacle. This module is able to detect objects at a distance of 60 inch.
DESCRIPTION:-
Power supply is given to each block
1. 5V supply is given to microcontroller , LCD , SONAR, TSOP
2. 5V is given to Motor driver & for motor 12V supply is given
3. The microcontroller receives input from SONAR & TSOP AND gives corresponding output to LCD & MOTOR DRIVER
4. MOTOR DRIVER drives the motors
Softwares & Hardwares Used