Tethered drone for rescue boats

Sammanfattning: Human has a great interest in aerial devices from very ancient days. The journey was started by kites and is still going on with the invention of airplane, helicopter, rocket,and many more. Drone is the latest field of scientist’s research which is a miniature of a helicopter. It has a great impact on military unit, navigation, and rescue mission. Inrecent days we can see its use in defense and attack strategies among the developed countries. There are many ways in which the use of drones in practical circumstances can be further explored. For example, in rescue missions, it is sometimes difficult for rescuers to reach the spot of the accident, which might be in the middle of a sea or an ocean. A navigation technology that will lead them towards the destination therefore can be of immense use. Rescue organizations like the Swedish Sea Rescue Society (SSRS) are in lack of such a technology that can assist them further in their mission. A tethered drone can act as navigation guidance for them to reach the destination very quickly. It will save time and fuel by reaching the destination via the shortest possible way. Its birds’ eye technology and sensor will broaden the chances of successful rescues. The current similar technologies have some drawbacks. An ordinary drone is generally powered by a battery and therefore has limited flight time. During the flight, it can record and sends a live video stream to a base station via the mobile network. The information collected is intended to be used to assist in crucial rescue decisions such as which boat to use, rescue crew size, what instruments to carry, and so forth. A tethered drone can fly longer than the average flight time. Due to being powered from the ground with wire, the drone gets constant power supply that does not depend on batteries with limited life. The main aim of this thesis is to design a system in which a drone can fly longer in a fixed position and altitude and to find suitable wire for wiring up and ensure the drone’s weight balance. Da-Jiang Innovations spark drone has been used for implementing the project as a model drone and the task is divided into few parts by testing process. Dronesflight time limitations have been overcome and longer flight time has been achieved. Also, because of testing, a few other limitations have been found.