Presentation Title

Sentinel - Security and Delivery Drone

Faculty Mentor

ybai@fullerton.edu

Start Date

23-11-2019 10:00 AM

End Date

23-11-2019 10:45 AM

Location

151

Session

poster 3

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Sentinel was built with campus security and payload delivery in mind. Our team designed a drone with six motors for these purposes. These motors provided the thrust needed to carry heavy loads. Each motor is capable of up to 1880g of thrust. Altogether, the drone is capable of supporting itself and approximately 14 pounds extra. Moreover, our team has finished tackling potential design flaws that hinder Sentinel’s stability. Initially, our flight controller, the Pixhawk PX4, was not as level as it could have been. Therefore, Sentinel would attempt to fix itself midair and result in unexpected landings. Due to this, we reworked the configuration of the sensors onboard to improve the center of gravity. At the moment, our flight controller is now at the center of the drone, underneath a custom designed shield and atop an anti-vibration stand. In addition, we believe Sentinel may require smaller propellers as the current propellers may provide too much thrust. Our team believes swapping our 15 inch propellers for 13 inch propellers will solve our stability issues. This will decrease the maximum thrust of each motor to 1380g and a maximum load weight of 8 pounds. Unfortunately, this design change is not favored as it greatly cuts the maximum weight we can deliver. Nonetheless, our most recent test flights have shown that Sentinel is capable of stable flight with a slight drift due to the wind. Our team believes the drone is now able to advance to the second stage of our research. The second stage will focus on the addition of a Raspberry Pi 4. This Raspberry Pi will interface with the Pixhawk PX4 to create a server from which we can control the drone via the school’s Wi-Fi.

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Nov 23rd, 10:00 AM Nov 23rd, 10:45 AM

Sentinel - Security and Delivery Drone

151

Sentinel was built with campus security and payload delivery in mind. Our team designed a drone with six motors for these purposes. These motors provided the thrust needed to carry heavy loads. Each motor is capable of up to 1880g of thrust. Altogether, the drone is capable of supporting itself and approximately 14 pounds extra. Moreover, our team has finished tackling potential design flaws that hinder Sentinel’s stability. Initially, our flight controller, the Pixhawk PX4, was not as level as it could have been. Therefore, Sentinel would attempt to fix itself midair and result in unexpected landings. Due to this, we reworked the configuration of the sensors onboard to improve the center of gravity. At the moment, our flight controller is now at the center of the drone, underneath a custom designed shield and atop an anti-vibration stand. In addition, we believe Sentinel may require smaller propellers as the current propellers may provide too much thrust. Our team believes swapping our 15 inch propellers for 13 inch propellers will solve our stability issues. This will decrease the maximum thrust of each motor to 1380g and a maximum load weight of 8 pounds. Unfortunately, this design change is not favored as it greatly cuts the maximum weight we can deliver. Nonetheless, our most recent test flights have shown that Sentinel is capable of stable flight with a slight drift due to the wind. Our team believes the drone is now able to advance to the second stage of our research. The second stage will focus on the addition of a Raspberry Pi 4. This Raspberry Pi will interface with the Pixhawk PX4 to create a server from which we can control the drone via the school’s Wi-Fi.