Design and implementation of obstacle detection system for an unmanned aerial vehicle

It is quite difficult to develop an effective obstacle detection system capable of providing a collision avoidance path for small unmanned aerial vehicles. The system can only be supplied with a few detection sensors due to size and weight restrictions. Previous research has concentrated on a single sensing device, such as a camera or a range sensor. Sensors, on the other hand, have advantages and disadvantages when it comes to sensing an obstacle. This paper describes the design and implementation of an obstacle detection system for an unmanned aerial vehicle (UAV) with quad rotors using ultrasonic and infrared sensors. The ultrasonic sensor's range detecting accuracy was increased by 8% of the possible distance from an obstacle by using an algorithm that compensated for the atmospheric condition of the surroundings, which restricts the sensor through the use of a temperature sensor. At the 50cm point, prototype displayed correct measuring of obstacles, as expected.