Autoliv - Automated Camera Positioning System
Team: Hayden Earl, Ethan Garrett, Robert Hall, and Colton Mansfield
Sponsor: Autoliv
I. Introduction
Current System:
- Two plus hours of set up time and adjustments
- Uncertainty of ±30mm
Motivation: Automated camera positioning system to increase accuracy and precision while reducing setup time
II. Design Description
The design, as shown in Figure 2, is a cart gantry system controlled by stepper motors. The cart and laser subsystems allow the user to position the cart to a location relative to the Anvil, and the gantry system allows the user to precisely position the camera relative to an airbag on the Anvil.
Figure 1. Electrical Diagram of Camera Positioning System
Figure 2. CAD Diagram of Camera Positioning System
Figure 3. Original Camera focus point (A) and repositioned camera focus point (B) on the Anvil
Figure 4. System GUI
II. Performacne Review
| Requirement/Constraint | Target | Threshold | Predicted | Actual |
|---|---|---|---|---|
| Setup Time (min) | 15.0 | 30.0 | 5.0 | 0.9 |
| Alignment Variation (deg) | 0 | 1 | 1 | 1 |
| Placement Accuracy (mm) | 5.0 | 20.0 | 5.0 | 4.6 |
| Uncertainty (mm) | 5.0 | 25.0 | 10.0 | 1.4 |
| Tipping Force (Newtons) | 25.0 | 6.4 | 10.0 | 27.5 |
| Equipment Life (months) | 60.0 | 24.0 | 36.0 | 70.7 |
| System Footprint (cm2) | 3,625 | 7,251 | 5,574 | 5,388 |
IV. Conclusions
Results
- Meets desired constraints and requirements
- More testing needed due to limited functionality
Lessons Learned
- Explore alternatives before building
- Calculate theoretical results before building
Future Work
- Troubleshoot code to ensure full functionality
- Improve Laser Position System
- Explore alternatives to transfer bearings
Acknowledgments
- Funding support from Autoliv - John Sabin and Brandon Allen
- USU Department of Mechanical and Aerospace Engineering