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Detailed Design

Table of Contents 1 Team Vision for Detailed Design Phase 2 Progress Report 3 Drawings, Schematics, Flow Charts, Simulations 3.1 Mechanical Drawings 3.1.1 2D Drawings 3.1.2 3D Models 3.2 Electrical Drawings 3.2.1 2D Drawings 3.2.2 Pin Outs 3.2.3 Software Flowcharts 3.2.4 Simulation 4 Bill of Material (BOM) 5 Test Plans 6 Design and Flowcharts 7 Risk Assessment 8 Design Review Materials 9 Plans for next phase

Team Vision for Detailed Design Phase

Summary:

• Our team planned to finalize our initial designs including, but not limited to: the 3-axis gimbal, components used to control the sensors and collect data, and the mechanical and electrical layout on the drone.
• Our team finalized the preliminary 3-axis gimbal design, determined the micro-controllers that were needed and removed the unnecessary MSP430, and began finalizing the physical layout on the drone.

Progress Report

What does the team plan to accomplish by the Detailed Design Review?

• Finish constructing initial gimbal designs
  
• Finalize harness layout and connector choices
  
• Purchase gimbal motors and battery required for test drone
  
• Decide on a median method for rangefinder data
  
• Create plan for Intersession
  
• Finalize software flowchart
  

What tasks have been accomplished so far?

• Found a pilot
  
• Received access to UAV lab
  
• Preliminary testing for Tetra Cam and range finder interference
  
• Ordered gimbal motors
  
• Ordered test drone battery
  
• Preliminary harnessing layout completed
  
• First revision of Python script to capture Tetracam images has been written
  

What tasks remain, and who is the owner of each?

• Integrate controllers together (EEs)
  
• Finish ordering materials (Steve)
  
• Update BOM with new materials (Steve)
  
• Further test Tetra Cam and Thermal Cam (All)
  
• Test the drone in the lab (Leah et al.)
  
• Finalize tests for range finder (Arthur et al.)
  
• Finalize and test Python script for capturing images from Tetracam (Ryan)
  
• Create Python script to capture thermal video (Ryan, Arthur)
  
• Create a system verification Python script to be run pre-flight that ensures the sensors are working and data can be obtained (EEs, Leah)
  

What decisions have been made so far?

• We will be designing and building our own gimbal
  
• Leah will be piloting the drone
  
• Programming work will take place during intersession
  
• A test drone will be used for the initial trials of flying with the flight software
  

What questions does the team have for the customer and/or guide in order to continue moving forward?

• None at this time
  

Team progress reports will also be posted here

Drawings, Schematics, Flow Charts, Simulations

Mechanical Drawings

2D Drawings

Carbon Angle Plate

Carbon Horizontal Plate

Carbon Vertical Plate

Carbon Yaw Side

Bracket Connection
Bracket Connection Rev 1

Pitch Base

Sensor Bracket
Sensor Bracket Rev 1

Gimbal Assembly

3D Models

Electrical Drawings

2D Drawings

Electrical Layout Rev B

Electrical Layout Rev A

Power Distribution

Pin Outs

Software Flowcharts

Simulation

The above screen capture shows how Mission Planner can automatically create a grid of waypoints which are a specified distance from each other. The area of interest polygon (red) is selected by the user. Then, Mission Planner calculates a path (yellow) and the waypoints (green) to fly to and trigger a camera. The screenshot shows the necessary inputs needed obtain 6.6cm resolution at 10% overlap with the Tetracam Micro MCA6. Based on these inputs, Mission Planner can estimate the total distance that the MRC needs to fly.

Mission planner calculates the GPS coordinates of each waypoint which then can be exported saved to a file for later use.

Bill of Material (BOM)

Test Plans

Test Plan
Engineering Requirements & Detailed Test Plans

Design and Flowcharts

Use Cases

Risk Assessment

Risk Assessment

Design Review Materials

Presentation Link

• Presentation

Updated Documents

• Customer Requirements
• Engineering Requirements

Downloads

• Zipped Schematics Package

Plans for next phase

Plan for intersession:

• Water-jet carbon fiber parts for gimbal
• Start camera calibration
• Write control software
• Test flight plans
  • In netted enclosure
  • South for the spring
  • Coordinating equipment and pilots

Plan for MSDII Build and Test Prep:

• Gimbal construction:
  • 3D models
  • Carbon fiber final construction
• Test:
  • Controls on test drone
  • Sensor/gimbal interface
• Optimization:
  • Stabilization
  • Data collection workflow
  • On-board control with Raspberry Pi
  • Battery life

Gate Review Worksheet

Individual plans:

• Leah Bartnik
• Art Svec
• Steve Depot
• Ryan Moore
• Jeremy Sardella
• Ben McFadden
• Gavin Bailey

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