Preliminary Design Report. Project Title: The Ad-Flier! Team Name: Sky Lights

Transcription

1 EEL 4924 Electrical Engineering Design (Senior Design) Preliminary Design Report 2 February 2012 Project Title: The Ad-Flier! Team Name: Sky Lights Team Members: Name: David J. Greene Djgreene@ufl.edu Name: Sal D'Acunto salvatorejdacu1t@ufl.edu 1

2 Project Abstract: What are the three most important things to remember in advertising? Location, location, location! The Ad-Flier is a solution to two of the greatest problems currently faced in the college of engineering: first, the publication of more Go Gators banners and advertisements; second, an easier solution to the take-off and landing of autonomous unmanned aerial vehicles. Team Sky Lights has found the opportunity to take out two UM Ibis with one stone, by developing an easier solution for a control system on a standard Quadrocopter frame and removing all the nags of common air flight, our system will allow the most novice of fliers the ability to enter a coordinate path (created using Google Maps) and takeoff! It does this by separating the flight functions into two separate chips, one processor devoted to stabilization of the craft and controlling the motors, and the second devoted to attaining coordinates and calculating the alterations of the current path. This separation will allow the stabilizer to react more quickly to changes in the environment while still ensuring it is following a stated course. The navigation unit will contain on-board memory to store its course and (time permitting) also contain a communications system to provide 2-way transmissions for course alteration and telemetry. So what does this all mean to the average Joe? While our football team is drowning out the Crimson Tide in Alabama, we can have our Ad-Fliers circling the stadium with Go Gators! and Enjoy Pepsi! logos attached, cheering our team and fans on to victory! Table of Contents Project Features / Objectives... 3 Concept / Technology Selection... 7 Distribution of Labor... 8 Gantt Chart

3 List of Tables and Figures Figure 1 - North Lawn Hover Trial... 5 Figure 2 - New Engineering Flight Trial... 5 Figure 3 - Ben Hill Griffin Stadium Flight Trial... 6 Figure 4 - Functional Diagram / Abstract System Design... 7 Figure 5 Gantt Chart... 8 Project Features / Objectives: The objectives of the Ad-Flier can be summarized into three main points, each carrying a sufficient load of research and work that will be placed into accomplishing them. 1. Autonomous Take-Off After the Ad-Flier has received its course, and the go signal has been given, it will need to take-off all on its own. This will be defined as lifting up from a stationary grounded object (landing/recharge pad), ascending some distance into the air, and maintaining stability before travelling to its destination. 2. Minimum Required Flight Time As the Ad-Flier is developed, a series of distance and time trials will be established in order to fully establish its qualifications. These trials will be set in the following order: 1. Hover Trial in North Lawn a. The Ad-Flier will be timed to determine the max time it can remain hovering with enough energy left to safely land. From this, an estimation of distance can be established for the further trials. 2. Weighted Hover Trial in North Lawn a. The Ad-Flier will be outfitted with a mock banner/poster and the max flight time will be measured. From this, an estimation of a weighted flight time can be established for further trials. 3. New Engineering Building Flight Trial 3

4 a. The Ad-Flier will be required to take-off, make one flight around the New Engineering Building given the stated path, and land. This is a distance of approximately 0.19 miles and will be used to determine whether the Ad-Flier is capable of Trial Weighted New Engineering Building Flight Trial a. The Ad-Flier will be required to take-off, make one flight around the New Engineering Building given the stated path, and land while holding a mock banner/poster. 5. Ben Hill Griffin Stadium Flight Trial a. The Ad-Flier will be required to take-off from the roof of the Florida Gymnasium, make one pass around the Ben Hill Griffin Stadium, and safely land. This is a distance of approximately 0.45 miles and will be used to determine if the Ad-Flier can safely operate during a season game. 6. Ben Hill Griffin Stadium Weighted Flight Trial a. The Ad-Flier will be required to make a standard flight trial around the Ben Hill Griffin Stadium with an attached mock banner/poster. This trial will be used to further estimate a max payload and flight time with payload for flight. 3. Autonomous Landing After flight, and before the batteries have been critically drained, the Ad-Flier will be required to land in a designated area for recharging. It will do this using a series of instruments indicating GPS location, an ultrasonic distance from ground, near-sight infrared, and finally proximity tactile switches attached to the landing feet of the aircraft. The unit will then powerdown and wait recharging. 4

5 Figure 1: North Lawn Hover Trial Figure 2: New Engineering Building Flight Trial 5

6 Figure 3: Ben Hill Griffin Stadium Flight Trial 6

7 Concept / Technology Selection Figure 4: Abstract System Design Technology Components: Stabilizing Processor: NXP Cortex, TI, or possibly an FPGA (Needs to be fast!) Navigation Processor: PIC32 Processor (PIC32MX795F512L) (Lots of I/O) 6-Axis Accelerometer: MMA7361L Sensor (+/-1.5G -> +/-6G) Proximity Sensors: Standard Tactile Switches Power Management: MAX1551 LiPo Single Cell Manager Wired/Wireless Communications: Microchip MRF24WB0M b Card GPS Navigation: Copernicus II GPS Module Ultrasonic/Infrared: Parallax PING Ultrasonic Set 7

8 Ditribution of Labor David Greene Research Flight Operations Board Architecture Software Sal D Acunto Research R/C Aircraft Specs Craft Construction Analog Power Systems Gantt Chart Figure 5: Gantt Chart 8