1. Drone Project
Tech Air

2. Project Overview
We are developing a drone which is able to scan a construction site before and during construction to assist workers and reduce construction times. It will get precise measurements and enable better manoeuvrability around the site as well as detect potential hazards and monitor workers.

3. Current drones
We have been researching current drones in an attempt to design ours to a better standard and to make our more cost efficient.
Some current drones include;
3DR Quadcopter - £450
-computer compatibility
-attachable go-pro
-1 hour
Parrot-Bebob drone- £199
-fixed camera
-22 mins

4. Previous Ideas/Concepts
We started with the initial idea to design an underwater construction drone.
We had the idea for the drone to be a hex copter.
As well as detecting fires, we considered putting out fires too with our drone.

5. Problems and our solutions
General camera use
Thermal imaging
Landing
Darkness

6. our drone design concept

7. Aesthetics Curved Allows the drone to be more aerodynamic
Small/Compact
This makes the drone lighter with the use of less material. Therefore it requires less power to carry its weight and the battery lasts longer.

8. Material
We initially planned on using PTFE (Polytetrafluoroethylene) but it turned out to be too expensive so we settled on using HDPE (High Density Polyethylene) which also has a higher density than most plastics but is also more durable.
HDPE is also common which means it’s cheaper (0.82- £ per Kg)
It’s resistant to high temperatures
It’s resistant to common weather conditions
It’s cost efficient

9. Our drone features 360° scanning and digital reconstructing
Thermal imaging to detect leaks or fires
Night time viewing
Custom gyroscope/stabilisation
Custom landing gear
Aerodynamic
Weather resistant

10. Components and their prices
360° Lidar - £337.59
Lidar - £112.77
URF - £62.74
Bluetooth - £2.69
Laser Sensor -£8.11
Thermal Core-$207.60
Thermal Card-£36.78
NoIR Camera-£20.45
GPS Module-£10.53
Wi-Fi Module-£7.88
360° Lidar - £337.59
URF - £62.74
Bluetooth - £2.69
Thermal Card-£36.78
NoIR Camera-£20.45
GPS Module-£10.53
Wi-Fi Module-£7.88
Total= £478.86

11. Research evaluation Hydrophobic coating
Software – CS One Universal Ground Control Software (£48.87)
Open Source Software
Hydrogen Fuel Cell charger - £19.96
Fontus - £16-£36 when publically available

12. Accelerated dynamics
We spent the day with Accelerated Dynamics, a company which have developed their own drone software which we had a chance to fly. This inspired some features in our own drones such as;
Stabilisation
Multi-drone control
Return home feature

13. Power Source
We considered using a common Lithium-Ion battery to power our drone but we found that Hydrogen Fuel Cells would be much more efficient for the following reasons;
Higher energy density ( Li=0.15 kWhr/kg H=almost 2.5 kWhr/kg )
Charges faster
Charges with its own waste product
Unlike Lithium Ion batteries, they wont need replacing as often
However, Hydrogen weighs about 10 times more than the battery but hydrogen is 16.6 times more powerful per kg.

14. Precautions
Some things can get too close to the drone and it can crash on site. Weather can be a problem such as wind and rain The user may lose control of the drone.

15. Benefits of our drone over others
Gyroscope algorithm rather than component
Better landing gear
Weather resistant
3D scanning and digital reconstruction
Thermal imaging for safety and monitoring
Anti-collision
Adjustable camera angle mid-flight
Wirelessly transfers data
Cleaner and more efficient power source

16. We are tech air
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