Residue spread monitoring

Kenneth Düring Jensen, Randers (DK); Martin Peter Christiansen, Randers (DK); Morten Stigaard Laursen, Randers (DK); Ramon Buchaca Tarragona, Randers (DK); Thomas Smed Bojsen, Randers (DK)

USPTO: us-12653100 · published 2026-06-16 · patents · A01D 41/127· A01D 41/1243· G01S 17/88· G05B 19/4155· G05B 2219/31376

Residue spread monitoring

Martin Peter Christiansen, Randers (DK) , Ramon Buchaca Tarragona, Randers (DK) , Morten Stigaard Laursen, Randers (DK) , Kenneth Düring Jensen, Randers (DK) , Thomas Smed Bojsen, Randers (DK) This is my paper

Pith reviewed 2026-06-20 04:31 UTC · model grok-4.3

classification patents A01D 41/127A01D 41/1243G01S 17/88G05B 19/4155G05B 2219/31376

keywords residue distributionLIDAR sensorsagricultural spreadermachine controlsensing boundariesvertical planesresidue monitoringdistribution control

0 comments

The pith

Two LIDAR sensors with vertical-plane boundaries measure residue crossing to determine spread distribution and generate machine control signals.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The patent presents a system that places two LIDAR sensors on an agricultural machine so each creates a vertical sensing plane in a different direction relative to the spreader tool. Each sensor reports a measure of residue material crossing its plane. A controller combines the two reports to calculate the overall distribution of residue from the spreader and then issues control signals to adjust the machine's operational systems. The approach supplies real-time feedback on how residue is being spread without requiring direct imaging of the ground surface itself.

Core claim

A system for monitoring residue distribution comprises a first LIDAR sensor defining a first vertical plane sensing boundary, a second LIDAR sensor defining a second vertical plane sensing boundary, and a controller that receives crossing measures from both sensors, computes the associated residue distribution, and outputs control signals for the agricultural machine.

What carries the argument

Dual LIDAR sensors each reporting residue material crossing a vertical-plane two-dimensional sensing boundary, with the controller deriving distribution from the pair of crossing measures.

If this is right

The machine can receive automatic adjustments to its spreader settings based on the calculated residue distribution.
Control signals can respond to differences detected between the two directional sensor measurements.
Operational systems receive feedback derived solely from the boundary-crossing data rather than from ground sampling.
The same sensor pair can supply distribution information for multiple passes or varying machine speeds.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

The method could support closed-loop control loops that continuously correct uneven spreading during a single operation.
Extending the two-plane approach to additional sensors might allow mapping of residue distribution in three dimensions.
The boundary-crossing principle may apply to monitoring other particulate materials dispensed by agricultural equipment.

Load-bearing premise

LIDAR data from the two vertical planes accurately reflects the amount of residue crossing those boundaries under field conditions without significant interference or per-field calibration.

What would settle it

A controlled field trial that releases known quantities and patterns of residue while recording sensor outputs and then comparing the computed distribution against direct physical collection or imaging of the actual ground deposit.

read the original abstract

1 . A system for monitoring the distribution of residue material from a spreader tool of an agricultural machine, the system comprising: a first LIDAR sensor having a two-dimensional sensing region defining a first two-dimensional sensing boundary corresponding to a first direction with respect to the agricultural machine, the first two-dimensional sensing boundary comprising a first vertical plane relative to a ground surface; a second LIDAR sensor having a two-dimensional sensing region defining a second two-dimensional sensing boundary corresponding to a second direction with respect to the agricultural machine, the second two-dimensional sensing boundary comprising a second vertical plane relative to the ground surface; and at least one controller, configured to: receive data from the first LIDAR sensor indicative of a measure of residue material crossing the first sensing boundary; receive data from the second LIDAR sensor indicative of a measure of residue material crossing the second sensing boundary; determine, from the data received from the first and second LIDAR sensors, a distribution of residue material associated with the spreader tool; and output at least one control signal for controlling at least one operational system of the agricultural machine in dependence on the determined distribution.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

This is a patent filing for a dual vertical-plane LIDAR setup to monitor residue from an ag spreader; it states a logical system but supplies no processing method or validation.

read the letter

This patent describes a system with two LIDAR sensors, each defining a vertical sensing plane, that count residue crossing those planes and feed the counts to a controller. The controller is supposed to compute a distribution tied to the spreader and generate machine control signals.

The concrete addition is the dual vertical-plane geometry itself. The abstract lays out the hardware and the intended data flow without internal contradictions.

The description stops at the high level. It gives no fusion algorithm, no way to convert boundary crossings into a spatial distribution, and no discussion of how velocity, wind, particle size, or occlusion would be handled. The central step—turning the two sensor streams into an actionable distribution—remains unspecified. That matches the stress-test concern exactly; the claim rests on an unstated and untested translation step.

Because this is a patent application rather than a research paper, the absence of data or implementation detail is expected, but it also means there is nothing to evaluate for soundness beyond the stated architecture. No derivations, no experiments, no prior-art engagement beyond the claim language.

I would not bring this to a reading group or cite it in research work. It is not the kind of document that needs or benefits from scientific peer review; any value is in the IP filing itself.

Referee Report

2 major / 2 minor

Summary. The manuscript describes a system for monitoring residue distribution from an agricultural spreader tool. It comprises a first LIDAR sensor defining a first vertical sensing plane, a second LIDAR sensor defining a second vertical sensing plane, and a controller that receives measures of residue crossing each boundary, determines a distribution associated with the spreader, and outputs control signals to an operational system of the machine.

Significance. If the determination of distribution from dual vertical-plane LIDAR data could be implemented reliably, the approach might enable closed-loop control of residue spreading for improved uniformity in precision agriculture. The manuscript provides no validation data, algorithms, or performance metrics, so any significance remains potential rather than demonstrated.

major comments (2)

[Abstract] Abstract (controller configuration): the claim that the controller can 'determine, from the data received from the first and second LIDAR sensors, a distribution of residue material' is asserted without any description of the data-processing algorithm, fusion method, or mapping from boundary-crossing counts to a spatial distribution. This step is load-bearing for the central claim yet unsupported.
[Abstract] Abstract (sensor data): no treatment is given of how factors such as particle velocity, size distribution, wind drift, or partial occlusion would affect the raw LIDAR returns or the reliability of the crossing measures under field conditions. The weakest assumption that the data are directly indicative of residue distribution is therefore unexamined.

minor comments (2)

The manuscript contains no figures, diagrams, or illustrations of the sensor placement relative to the spreader tool or the two vertical planes.
No references are provided to prior work on LIDAR-based residue or particle monitoring in agricultural settings.

Simulated Author's Rebuttal

2 responses · 1 unresolved

We thank the referee for reviewing our patent application. This document is a patent specification describing a novel system at the functional level rather than an empirical research paper; it therefore does not contain implementation algorithms or field validation data.

read point-by-point responses

Referee: [Abstract] Abstract (controller configuration): the claim that the controller can 'determine, from the data received from the first and second LIDAR sensors, a distribution of residue material' is asserted without any description of the data-processing algorithm, fusion method, or mapping from boundary-crossing counts to a spatial distribution. This step is load-bearing for the central claim yet unsupported.

Authors: Patent specifications describe inventions at the level of system architecture and functional capability. The central inventive concept is the use of two vertical-plane LIDAR boundaries to obtain crossing measures that a controller can use to determine distribution; specific data-processing algorithms are intentionally omitted to preserve proprietary implementation details. revision: no
Referee: [Abstract] Abstract (sensor data): no treatment is given of how factors such as particle velocity, size distribution, wind drift, or partial occlusion would affect the raw LIDAR returns or the reliability of the crossing measures under field conditions. The weakest assumption that the data are directly indicative of residue distribution is therefore unexamined.

Authors: The specification claims a system that receives measures of residue crossing each vertical boundary. Environmental influences on raw returns are implementation considerations that fall outside the high-level functional description required for a patent. revision: no

standing simulated objections not resolved

Absence of validation data, algorithms, or performance metrics, which cannot be supplied because the document is a patent application rather than a research study.

Circularity Check

0 steps flagged

Direct system specification with no derivations or predictions

full rationale

The patent describes a hardware/software system for residue monitoring using two LIDAR sensors and a controller. The text specifies functional requirements (receive data indicative of material crossing vertical planes; determine distribution; output control signals) but contains no equations, no fitted parameters, no predictions of any quantity, and no citations. No derivation chain exists that could reduce to its inputs by construction. The reader's assessment of score 0.0 is confirmed; this is a normal non-finding for a pure specification document.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 1 invented entities

The central claim rests on the domain assumption that commercial LIDAR units can reliably detect residue crossing defined vertical planes and that the resulting counts or measures can be mapped to a usable distribution metric. No free parameters or new physical entities are introduced beyond the proposed sensor arrangement.

axioms (1)

domain assumption LIDAR sensors provide accurate measures of material crossing defined 2D boundaries
Invoked when the controller receives data indicative of residue crossing the first and second sensing boundaries.

invented entities (1)

Dual vertical-plane LIDAR sensing configuration for residue distribution no independent evidence
purpose: To enable determination of spread distribution and generation of control signals
The specific two-sensor, two-plane arrangement is the core proposed configuration.

pith-pipeline@v0.9.1-grok · 5803 in / 1180 out tokens · 45096 ms · 2026-06-20T04:31:52.985053+00:00 · methodology

Residue spread monitoring

Core claim

What carries the argument

If this is right

Where Pith is reading between the lines

Load-bearing premise

What would settle it

discussion (0)