JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III UNMANNED AIR VEHICLE (UAV) SYSTEMS Previous Question Paper (February/March - 2022 - R16)

Unmanned Air Vehicle (UAV) systems have revolutionized civilian sectors by providing cost-effective, safe, and efficient alternatives to traditional manned aircraft. Their significance lies in their ability to access hazardous or difficult-to-reach locations without risking human life.

Key applications include:

• Precision Agriculture: UAVs equipped with multispectral sensors monitor crop health, soil moisture, and pest infestations, allowing for targeted irrigation and fertilizer application, which increases yield and reduces environmental impact.
• Infrastructure Inspection: Drones perform routine maintenance checks on power lines, bridges, wind turbines, and pipelines. This reduces the need for manual climbing or dangerous inspections, identifying structural fatigue early.
• Disaster Management: During floods, earthquakes, or wildfires, UAVs provide real-time aerial mapping and situational awareness, enabling search and rescue teams to locate survivors and assess damage rapidly.
• Logistics and Delivery: UAVs facilitate the transport of medical supplies, such as blood samples or vaccines, to remote or congested areas, bypassing ground traffic and infrastructure limitations.
• Urban Planning and Mapping: High-resolution photogrammetry and LiDAR sensors allow for accurate 3D modeling and surveying of urban environments for development projects.

UAV systems are essential for specialized missions where human presence is either impossible, inefficient, or undesirable. Their design allows for extended endurance and stealth, which are critical for the following roles:

• Covert Operations: UAVs provide persistent surveillance capabilities without exposing personnel to hostile environments. For example, in law enforcement, drones are used for discreet monitoring of illegal activities or tracking suspects in complex terrains where traditional surveillance would be detected.
• Research and Scientific Exploration: UAVs are used to study phenomena that are dangerous for humans, such as volcanic activity or extreme weather patterns. By flying into the eye of a hurricane or over an active lava flow, they collect atmospheric and geological data that would otherwise be unattainable.
• Environmentally Critical Roles: UAVs are vital for wildlife conservation and environmental monitoring. For instance, they are used to track endangered species in dense forests or monitor illegal deforestation and poaching activities. Additionally, they are deployed to detect methane leaks or oil spills, allowing for immediate containment and minimizing ecological damage.

These systems excel in these roles because they can be deployed rapidly, operate autonomously for long durations, and carry specialized payloads tailored to the specific scientific or operational requirement.