POSITION-AWARE IMPLEMENT SWITCHING

Section
Control

Section Control uses position, implement geometry, coverage state, and timing parameters to switch controllable implement sections as they enter or leave areas that should be treated.

ISOBUS FUNCTIONTASK-CONTROLLER SECTION CONTROL
INPUTPOSITION · GEOMETRY · COVERAGE
OUTPUTSECTION ON/OFF COMMANDS
COMMON USESPRAY · FERTILIZE · SEED
EVIDENCEVerified

Coverage memory controls
implement sections.

AEF describes Task-Controller Section Control as automatically activating implement sections using GPS position and the desired overlap behavior. The terminal or controller tracks treated geometry and sends switching commands to compatible implement functions.

The concept applies beyond sprayers. Any compatible implement divided into controllable sections may use spatial switching, but the number of sections, control resolution, and supported behavior are product-specific.

Know the implement,
remember the coverage.

LOCATE / 01Machine positionGNSS position, heading, and motion
MODEL / 02Implement geometryHitch, offsets, working width, and section layout
COMPARE / 03Coverage decisionBoundary, previous coverage, overlap, and look-ahead
SWITCH / 04Section commandCompatible implement turns sections on or off

Geometry and timing
decide field behavior.

GEO

Implement geometry

Working width, section positions, hitch point, offsets, antenna location, and machine articulation must describe the real system.

TIME

On and off timing

Look-ahead or delay settings compensate for controller, valve, product, and mechanical response.

COV

Coverage rules

Overlap thresholds, field boundaries, headlands, exclusions, and the active task determine switching decisions.

STATE

Machine state

Direction, speed, reverse behavior, implement lift, master switch, and section feedback affect valid control.

ISOBUS support is
function-specific.

Usable Section Control requires compatible task-controller functionality, terminal software, implement ECU behavior, position input, licenses or activations where applicable, and correct object or geometry data.

AEF certification and database information can support compatibility checks, but the exact terminal, implement, software versions, section count, and feature combination still need verification.

A switched command is not
instant material placement.

Product response takes time.Valves, meters, drives, hoses, crop flow, and transport distance create delays between command and field effect.

Position errors become coverage errors.Correction quality, antenna placement, heading, slope, implement drift, and geometry calibration shift switching locations.

Coverage is a model.The map records commanded or reported state and may not directly measure every seed, droplet, granule, or tool interaction.

Safe operation remains supervised.Automatic switching does not replace product-label compliance, boundary awareness, drift management, equipment inspection, or operator responsibility.

Primary sources.

This briefing uses AEF's public description of Task-Controller Section Control and ISO 11783-10 for the task-controller communication layer. Exact functions, geometry handling, delays, licenses, and compatibility require product-specific verification.

01
AEF Tour — Task-Controller Section ControlAgricultural Industry Electronics Foundation · Accessed 2026-07-11
02
ISO 11783-10:2015 — Task controller and management information system data interchangeInternational Organization for Standardization · Accessed 2026-07-11
NEXT / VARIABLE TARGETS

Continue from automatic switching to variable-rate control.

Open VRT briefing