Slide 1: AGV Navigation: Pros and Cons
AGV Navigation: Pros and Cons Presented by: Chuck Russell – VP of Sales © 2018 MHI® Copyright claimed for audiovisual works and sound recordings of seminar sessions. All rights reserved.
Slide 2: Navigation Considerations
Navigation Considerations • Accuracy • Repeatability • Flexibility • Environment – Block Stacking – Temperature • Floor sub-structure • Traffic pattern • Preferences on preserving floor BOOTH # B5047
Slide 3: AGV Navigation - History
AGV Navigation - History • 1953 – First AGV is developed with Wire Guidance in Illinois by Barrett Electronics - Arthur “Mac” Barrett • Mid 1980’s – Inertial Guidance released • Late 1980’s – Laser & Inertial Navigation were introduced • Late 1990’s – Natural Feature Guidance was introduced • Early
Slide 4: Navigation Types – Wire
Navigation Types – Wire • Pros – Historically proven – Very accurate – Mature hardware – Negligible effect from snow, ice, dirt – Usually limited in speed • Cons – Floor movement affects the wire over time – Frequency generators needed for path change. Complicated loops. – Inflexible – Hard to chang
Slide 5: Navigation Types – Tape
Navigation Types – Tape • Pros – Low cost – Great for Assembly Systems – Optionally rubber bar embedded in floor • Cons – Usually limited in speed – Needs antennas in each direction – Shallow rebar can be problematic – Takes time to modify BOOTH # B5047
Slide 6: Navigation Types – Spot/Inertial
Navigation Types – Spot/Inertial • Pros – More durable than tape – Spots can be transponders or magnets – Gyro improvement has reduced spots – Can be used outdoors – Good high speed control • Cons – More expensive than tape – Can be time consuming to install – Potentially time consuming to modify –
Slide 7: Navigation Types – Laser / Targeted Triangulation
Navigation Types – Laser / Targeted Triangulation • Pros – Very High Accuracy – Very easy to modify path – Reasonably fast installation – No civil installation – Can be used outdoors – Great high speed control • Cons – Block stacked loads – Targets can be removed or damaged – Vehicle Cost BOOTH # B5
Slide 8: Navigation Types – Laser – 2D Feature/Natural
Navigation Types – Laser – 2D Feature/Natural • Pros – Very quick installation time – Good high speed control • Cons – Not suitable for all facilities or conditions – Not suitable for outdoor use – Resolution tied to sensor type and layout typically not as good as targeted laser BOOTH # B5047
Slide 9: Navigation Types – Others
Navigation Types – Others • 3D Vision – stereoscopic camera • RF Triangulation • Optical (floor) • Chemical path • GPS & Differential GPS (only outdoors) BOOTH # B5047
Slide 10: It's More Than Navigation
It’s More Than Navigation • Great systems have: – Robust offboard system controls; non custom code • Ability to run emulation/simulation – [Navigation is not traffic control] • Ability handle complicated traffic patterns with numerous vehicles – 50+ – Reliable mechanical design – Reliable navigation
Slide 11: For More Information
For More Information: Chuck Russell – VP of Sales Email: crussell@transbotics.com Website: www.Transbotics.com Or visit ProMat Booth B5047 BOOTH # B5047