Abstract:
The military use of unmanned aerial vehicles (UAVs) has grown due to its ability to operate in hazardous locations while retaining their human operators at a safe distance. Larger UAVs also provide a cost-effective, reliable platform for long-tenn, recognition, as well as weapons. They have grown up to become an indispensable tool for the military. The question of our project was whether small unmanned aerial vehicles also had utility in military as well as commercial and industrial applications. We postulate that small unmanned aerial vehicles can serve more tactical operations such as looking for a town or a building for positions of enemy. Smaller UAVs, on the order of a few feet to a meter in size, should be able to handle the military tactical operations,
as well as the emerging commercial and industrial applications and our project seeks to validate this hypothesis.
To validate this hypothesis, my team considered many different UAV designs before we decided to create a Quad helicopter. The payload of our helicopter Quad design includes a camera and telemetry allowing you to view live video from helicopter Quad on a laptop that is located 2 miles away. The UAV drone can be divided into two phases. Software phase and hardware phase. Software phase include secure operating system of Linux running inside the raspberry pi and also apache server was installed that hosts the PHP file. All PHP files was made using NetBeans as PHP developing platform. Hardware phase includes micro controller and raspberry pi interconnected by serial port to each other. PHP runs on server side. When a pilot desires to change the drone tilt angle then a respective PHP file is run and inside it a python script is made to run that sends the data on serial port of raspberry pi and that data is well understood by the micro controller and it changes the set point of PID control. All such shifting of tilt angle takes place in interrupt based serial communication. The foremost problem of tuning of PID control was well handeled by Matlab. The microcontroller was serially interfaced by the matlab and the PID constants were increased and decreased. The value at which reasonable result was obtained was selected.
