Tractor Camera Blockage Detection for Agricultural Implements

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Solution Overview

Problem

Existing machine combinations used in agriculture, such as tractors with attachments, face operational complexities due to blockages caused by objects like stones or branches, leading to potential damage and requiring complex monitoring and intervention by the driver, with prior solutions involving sensors that need adjustment for different attachments and relying on subjective human assessment.

Innovation Solution

A method utilizing a camera on the tractor to automatically evaluate images of the attachment tools, identifying blockages by comparing captured images to reference images, with the aid of artificial intelligence and a database, allowing for objective detection and adaptive responses to specific attachments, and enabling partial autonomous operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensors are installed on the attachment to detect blockages, then detection capability is improved, but device complexity increases and requires different sensors for different attachments

Engineering Contradiction:
Improveblockage detection capabilityVSAvoidsensor configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a camera to capture optical images of the attachment and tool, creating a visual copy that is then analyzed by image processing algorithms to detect blockages. This replaces the need for physical sensors on the attachment, as the camera system can universally monitor different attachment types through imaging rather than requiring attachment-specific sensor installations.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces mechanical/electrical sensor systems with an optical detection system. Instead of using physical sensors that contact or closely monitor the attachment, the system uses a camera to optically capture images and automated image processing to detect blockages, thereby reducing mechanical complexity and eliminating the need for sensor conversions between different attachments.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If driver manually assesses sensor data to detect blockages, then detection capability is improved, but operation complexity increases and requires special attention from driver

Engineering Contradiction:
Improveblockage detection capabilityVSAvoiddriver operation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs self-monitoring through automated image processing algorithms that automatically analyze captured images to detect blockages. The evaluation unit autonomously processes the visual data without requiring driver intervention or interpretation, thereby maintaining high detection reliability while eliminating the need for special driver attention or manual assessment procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements automated feedback through the evaluation unit that continuously analyzes images and provides real-time blockage detection results. This automated feedback loop replaces manual driver assessment, maintaining high detection reliability while simplifying operation as the system self-regulates and notifies the driver only when necessary rather than requiring constant manual monitoring.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If separate sensors are provided for each attachment type, then detection precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improveattachment-specific detection precisionVSAvoidnumber of sensors required
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a universal camera-based detection system that can monitor multiple different attachment types with a single device. The camera and image processing algorithms are designed to adaptively analyze various attachment configurations, providing attachment-specific detection precision without requiring separate sensors for each attachment type. The system universally handles different tools and attachments through software-based recognition rather than hardware differentiation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4151061A1Machine combination and method for operating a machine combination
Publication Date: 2023.03.22 CLAAS E SYSTEMS GMBH
  • EP4151061A1 patent drawingFigure 1~2
  • EP4151061A1 patent drawing
  • EP4151061A1 patent drawing

AI summary

The invention relates to a method for operating a machine combination (1), the machine combination (1) comprising a tractor (2) and an implement (3) pulled by the tractor (2) for cultivating soil (6). The tractor (2) also includes at least one camera (4) directed at the implement (3). Furthermore, the implement (3) includes at least one tool (5) by means of which the soil (6) is cultivated. The camera (4) optically detects at least one tool (5). According to the invention, images captured by the camera (4) are evaluated in such a way that a blockage on the implement (3) is detectable. The invention further relates to a machine combination (1).