Matching Items (5)

134093-Thumbnail Image.png

915 MHz Telemetry and Real-Time Flight Control Wireless Link

Description

Remotely controlled flying vehicles such as UAVs are becoming more common due to decreases in material costs and increases in performance of components. Radio control link options, however, have not

Remotely controlled flying vehicles such as UAVs are becoming more common due to decreases in material costs and increases in performance of components. Radio control link options, however, have not improved at the same rate as airframes, motors, flight controllers, etc [HobbyKing]. Most UAVs require a radio link, often at 2.4 GHz, for flight control, and a second link at 915 MHz for telemetry data transmission [HobbyKing]. Occasionally there is also a video link at either 2.4 GHz or 5.8 GHz. Having multiple transmitters increase power usage from the limited battery reserve that the UAV carries. It also increases weight and space used on the airframe. In addition, the 2.4 GHz band is often congested [ISM Congestion] and does not provide as great a range for a given transmission power as lower frequencies do [Wu]. Attempting to reduce space and weight, power consumption, and simplify design, while increasing control and telemetry range requires the design, testing, and implementation of a radio link that handles both real-time flight control and telemetry with the same transceiver. Only the flight control and telemetry will be addressed in this project. Merging and/or improving the video link will not be tackled at this time in order to simplify project goals to fit inside time constraints. The new radio link system will be verified for functionality then power and range test data will be gathered to determine how effective it is.

Contributors

Agent

Created

Date Created
  • 2017-12

136996-Thumbnail Image.png

Validation and Refinement of a Drag Build Up Method for Unmanned Aerial Vehicles

Description

The emerging market for unmanned aerial vehicles, or UAV's, demands the development of effective design tools for small-scale aircraft. This research seeks to validate a previously developed drag build-up method

The emerging market for unmanned aerial vehicles, or UAV's, demands the development of effective design tools for small-scale aircraft. This research seeks to validate a previously developed drag build-up method for small air vehicles. Using the method, a drag prediction was made for an off-the-shelf, remotely controlled aircraft. The Oswald efficiency was predicted to be 0.852. Flight tests were then conducted using the RC plane, and the aircraft performance data was compared with the predicted performance data. Although there were variations in the data due to flight conditions and equipment, the drag build up method was capable of predicting the aircraft's drag. The experimental Oswald efficiency was found to be 0.863 with an error of 1.27%. As for the CDp the prediction of 0.0477 was comparable to the experimental value of 0.0424. Moving forward this method can be used to create conceptual designs of UAV's to explore the most efficient designs, without the need to build a model.

Contributors

Agent

Created

Date Created
  • 2014-05

The Rise of Drones: A Documentary

Description

Unmanned Aerial Vehicles, more commonly referred to as drones, have been a hot subject for the past few years. In the news, stories about drones cause the public alarm because

Unmanned Aerial Vehicles, more commonly referred to as drones, have been a hot subject for the past few years. In the news, stories about drones cause the public alarm because of their seemingly increasing use. Problems have arisen with drones congesting airspace where manned aircraft fly, posing a huge threat to pilots and passengers of those aircraft. They have also caused concern of the public in matters of privacy. Drones are a go-anywhere and see-anything type of tool. They go where manned aircraft cannot, and where humans on the ground cannot. This video takes an in depth look at the issue of increasing civilian drone use, new regulations on users, categorizing types of drones, and possible solutions to the problems. Throughout the video, there will be three interviews. These interviews will be with experts in the field. The first person is Dr. Sarah Nilsson, Esq. She is a lawyer in drone law with her own practice. She has her PhD, CFI, and CFII as well as professional flying experience. The second person is Mr. Chris Andres. He is the Airport Administrator of Chandler Municipal Airport and offers a unique perspective on drones from an airport management standpoint. Lastly, the third person interviewed is a salesman at Viper Hobbies located in Mesa, AZ. He offers a perspective of drone use from the retail side, and also insight in FAA requirements of retailers and how retailers might offer education on regulation to the public.

Contributors

Agent

Created

Date Created
  • 2016-05

136726-Thumbnail Image.png

Electric Field Sensing of High Voltage Transmission Lines in Rural Areas

Description

This is a project to create an electric field sensing system which is fully portable. This system should provide accurate electric field readings from transmission lines allowing abstraction to find the voltage on the transmission line.

Contributors

Agent

Created

Date Created
  • 2014-12

136219-Thumbnail Image.png

Measuring and Profiling the Magnetic Field Produced by Live Current in Power Transmission Lines with the use of a UAV Mounted Sensor

Description

This project details a magnetic field detection system that can be mounted on an unmanned aerial vehicle (UAV). The system is comprised of analog circuitry to detect and process the

This project details a magnetic field detection system that can be mounted on an unmanned aerial vehicle (UAV). The system is comprised of analog circuitry to detect and process the magnetic signals, digital circuitry to sample and store the data outputted from the analog front end, and finally a UAV to carry and mobilize the electronic parts. The system should be able to sense magnetic fields from power transmission lines, enabling the determination of whether or not current is running through the power line.

Contributors

Agent

Created

Date Created
  • 2015-05