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Drawbar Type Implement Measurements

Configuring drawbar attached implement for safe autonomous operations

Accurate implement measurements are essential for field operations. These values allow the system to understand how the implement behaves and how to use it effectively. The primary uses for these measurements are: 
  • Coverage Planning: Calculating how much area the implement covers and planning the most efficient path to cover the entire field.
  • Path Planning: Ensuring the vehicle drives in the right place to make perfectly straight rows, even on contoured ground.
  • Collision Detection: Making the vehicle aware of the implement's full dimensions to avoid collisions with obstacles, especially during turns.
The required measurements depend on how the implement is attached. This guide provides extra detail to help you capture them correctly.
 
 
Table of contents

Note: It is not required for the implement to be attached to the vehicle to complete an implement measure up. 

 

Important: Before measuring up the implement, please navigate to the "Capabilities" on vMC, and turn on any applicable capabilities for the implement. 

 
 

Center of Drawbar Connection to Implement

The distance between the center of the connection point on the implement where the drawbar pin will be placed, to the front of the implement.

Why it's important: This measurement helps accurately track and control the position of the implement relative to the tractor. This ensures precise path following, safe maneuvering, and effective operation in the field.
 
Silhouette Viewimplement_drawbar_connection_to_implement
Center ViewDrawbar_to_fnt_imp
Left Viewdrawbar_to_front_imp_left
Right Viewdrawbar_to_front_imp_right

 

Drawbar Connection to Center of Work Area

The distance between the center of the connection point on the implement where the drawbar pin will be placed, to the center of the implements working area.

Why it's important: This measurement allows the autonomy system to determine the exact location of the implement’s working section relative to the tractor. This ensures accurate coverage, precise path planning, and effective operation during autonomous tasks.
 
Silhouette Viewimplement_drawbar_connection_to_center_work_axis
Center ViewDrawbar_to_center_working_middle
Left Viewdrawbar_to_front_imp_left
Right ViewDrawbar_to_center_working_right

Left/Right Offset

Path planning with an offset is not formally supported yet. 

The offset distance either left (negative) or right (positive) from the vehicle's center axis.
 
Why it's important: This is for implements that are not perfectly centered behind the vehicle. An accurate offset is critical for path planning, as the system needs to adjust the vehicle's path to ensure the implement is in the correct location, not the vehicle itself.
implement_left_right_offset

 

Working Width

Working Width is not officially used for any features yet. 

The maximum width of the implement's working area (e.g., the width of product that a sprayer will broadcast).
 
Why it's important: This measurements allows the system to understand how much area the implement actually covers. This value is critical for generating coverage maps after completing a mission and other alike features in the future.
 
Silhouette Viewimplement_application_width
Center Viewworking_width
 

Implement Width

The maximum physical width of the implement when it is in its working position. (e.g a wing fold implement has the wings unfolded)
 
Why it's important: This defines the implement's total horizontal footprint. The system uses this to avoid collisions, ensuring that the implement's wings or outer edges don't hit obstacles like fence posts or trees while working in the field.
 
Silhouette Viewimplement_width
Center ViewImp_width_middle
Left ViewImp_width_left
Right ViewImp_width_right
 

Implement Length

The maximum length of the implement's working area, excluding the attachment point (e.g., from the back of the planter to the front of the seed boxes), and the center trailing section length if needed.
 
Why it's important: This measurement helps the Sabanto autonomy system create an accurate 3D model and understand the implement's size. It's used in visualizations and to help the vehicle understand how much space the implement occupies for geofence detection purposes.
 
Silhouette View
No Trailing Sectionimplement_length
Silhouette View
With Trailing SectionShadow_imp_length_w_3rdsection
Center ViewFront_imp_deck_to_rear_middle
Left ViewFront_imp_to_rear
Right ViewFront_imp_deck_to_rear_right
 

Center Trailing Section Length

The length of the center trailing sections working area.
 
Why it's important: This measurement helps the Sabanto autonomy system create an accurate 3D model and understand the implement's size. It's used in visualizations and to help the vehicle understand how much space the implement occupies for geofence detection purposes.

 
 
Silhouette ViewShadow_imp_length_w_3rdsection_rearwing
Center ViewFront_imp_deck_to_reardeck_rear_middle
Left ViewFront_imp_deck_to_reardeck_rear_right
Right ViewRead_trailing_length_right

 

 

Center Trailing Section Width

The maximum physical width of the implements center trailing section. (e.g any implement shaped like a "T" instead of a rectangle.)
 
Why it's important: This defines the implement's horizontal footprint for the center trailing section.
This measurement helps more accurately represent the implement's true shape instead of a simple rectangle which helps prevent false geofence detections.
 
Silhouette Viewimplement_center_trailing_section_width
Center Viewcenter_trail_width_middle
Left Viewcenter_trail_width_left_unfolded_wide
Right Viewcenter_trail_width_right_unfolded

 

Implement Height

The maximum height of the implement while in the working position. (e.g a wing fold implement has the wings unfolded)
 
Why it's important: This is used for visualization and obstacle detection. It helps generate an accurate 3D model and can be used to avoid overhead obstacles that might be present in the field, but not within the implements or tractors 3D geometry.
 
Silhouette Viewimplement_height
Center Viewimp_height
Right Viewimp_height_right
 

Swath Width

The planned spacing between passes. When generating coverage plans or templates, this value will be used to space apart coverage passes. 
When considering total field coverage: A swath width smaller than a working width results in overlap while working a field. A swath with larger than a working width results in a skip between passes.
 
Why it's important: This value directly controls the path planner. By setting a swath width, you define exactly how far apart you want each pass to be, giving you control over overlap or gap/skip to match your specific operational needs. This value serves as a default and is editable on the coverage planner screen.
Silhouette View
implement_swath_width
Arial Viewswath_width

 

Folded Implement Width

The maximum physical width of the implement when the wings are in a folded position.
 
Why it's important: This defines the implement's total horizontal footprint when folded. The system uses this to avoid collisions and prevent false obstacle positives when navigating thin paths with obstacles on either side of the vehicle.
  
Silhouette ViewShadow_imp_width_folded
Center Viewfolded_width_center
Left Viewcenter_trail_width_left
Right Viewcenter_trail_width_right

 

Folded Implement Height

The maximum height of the implement while in the working position.
 
Why it's important: This is used for visualization and obstacle detection. It helps render an accurate 3D model of the implement and ensures that tall obstacles are detected when the implement is folded. 
 
Silhouette View
Shadow_imp_height_folded
Center ViewFolded_height_middle