Modelling of Quadcopter for Precision Agriculture and Surveillance Purposes

This article presents the modelling of a quadcopter with a payload of 7 kg and the general overview of its use for precision crop spraying. The paper reviews the current state of the art in precision crop spraying and provides a comprehensive overview of the various types of unmanned aerial vehicles (UAVs) available, their capabilities, and their potential applications in precision crop spraying. It also provides a detailed analysis of the challenges and opportunities associated with the use of UAVs for precision crop spraying. The UAV used in the study was integrated with a liquid payload and a sprayer system that is controlled remotely by a flight controller radio. The objective was achieved by developing a mathematics-based model for the quadcopter. Subsequently, the quadcopter was physically fabricated in accordance with the computer model, tested, and evaluated. The modeling outcome gives a quadcopter with dimensions of 1140.28 mm by 767.11 mm by 267.37 mm and with each of the four propellers having a length of 457.2 mm. This was simulated, and the results show a stable trajectory flight and a uniformly distributed pattern of discharge of its content.