1	Precision Guidance and Autosteering Systems Tim Stombaugh Biosystems and Agricultural Engineering
2	Definitions Guidance Systems (Lightbars) Help the driver know how to steer Autosteer The system steers the machine
3	Outline Guidance systems GPS accuracy classes Autosteer systems Tilt compensation
4	Lightbars Reduced overlap and skips Record keeping Operating in the “bush” Operator attention
5	Many Manufacturers Ag Leader Ashtech John Deere Mid-Tech RHS Outback Raven Satloc Starlink Trimble Others
6	Which ones are good? Satloc Trimble Cultiva Hood mount, 2 indicators Cab mount, 1 indicator LCD display
7	The Test There is a marked advantage over foam markers There is basically no accuracy difference between lightbars Accuracy based on user preference and GPS engine
8	Display Choices Configuration Mounting location Visibility Look ahead Programmability
9	Features Data logging Headland indicator Return to point Drift compensation
10	Features Compatibility with GPS and other PA equipment GPS update rate Output ports Contour following
11	GPS Classifications
12	Autosteer: Who’s makin’ ‘em? Autofarm Trimble Case IH AFS New Holland Mid-Tech Ag Leader Beeline AGCO CSI Wireless/Satloc Smucker Chauffer RHS Outback Raven John Deere KEE
13	Autosteer Classes Sub-meter $8,500 - $20k Chemical application Sub-foot $15k - $25k Tillage, drilling, some planting RTK $28k - $40k Planting, cultivation, multiple operations
14	New Configurations
15	Autosteer Selection GPS accuracy Path engagement Speed limitations In-cab clutter Installation time Portability Tilt compensation
16	Tilt Issues
17	Tilt Issues
18	Tilt Issues
19	Tilt Issues
20	Tilt Conclusion Somewhat questionable value for guidance systems More critical for autosteer systems
21	Summary Guidance systems GPS accuracy classes Autosteer systems Tilt compensation
22	Someday …
23	Precision Guidance and Autosteering Systems Tim Stombaugh Biosystems and Agricultural Engineering
24	Thinking Outside the Box (with autosteer) Pre-emergence cultivation Banded fertilizer applications (fall) Controlled traffic Intra-row cultivation
25	Expanding Possibilities