레이저렌지파인더를 활용한 무인항공기의 자동회피 시스템

Abstract

As the technology of air force industry develops the invention of automatic aircraft was possible, which is a plane with no person on air

the pathways that the aircraft is succeeding is departed to 5 directions. When the barrier is detected in the pathways of an automatic aircraft, the MCU which is located in the inner structure of the craft decides the safest avoiding direction according to the area that is detected with the obstacle and the direction of progress of the airplane.

When it decides the direction to evade, the auto-craft sends a PWM signal which can move itself away from the obstacle. It is structured a LabVIEW system which users can simultaneously check the flight conditions live from a PC from using a Zigbee wireless communication.

Not only that, while the craft is evading, it is designed to return to the previous track after the avoiding progress by enforcing counting to a certain function.

using Laser Range Finer (LRF).

In this thesis the area that is detected of obstacles by using LRF is divided by 3 directions

remote controlling the craft for afar. Moreover, these days with the introduction of automatic navigating systems, it made far distance and auto flights possible. The automatic navigation system is a term which the plane flies to the destination through received pathways and information in advance.

When the plane discovers an obstacle while flying its path, it needs an obstacle filtering system that can sense the obstacle and therefore avoid it. The existing detecting system is a method that uses infrared light sensors, however, is vulnerable to sun rays and short detecting distances. The research regarding automatic aircraft has been prioritizing it safety due to dangers of possible accidents. In this research it supplemented the disadvantages of previous methods and suggests a new automatic dodging system that is free of sun rays and has long detecting distances