Master-Slave Grain Unloading System for Simultaneous Harvester Transfer

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Solution Overview

Problem

Current agricultural harvester systems lack an efficient method for coordinating the simultaneous transfer of grain from multiple harvesters to a grain cart, particularly during high-speed operations and varying terrain conditions, leading to potential collisions and uneven grain flow.

Innovation Solution

A master-slave grain moving system where sensors and actuators coordinate the positioning and flow of grain between harvesters, allowing for single-point unloading into a grain cart, even as machines traverse the field, using a network of conveyance devices and controllers to manage grain transfer and tank capacities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple harvesters unload grain simultaneously to a single grain cart, then unloading efficiency and productivity are improved, but coordination complexity and risk of collisions increase

Engineering Contradiction:
Improveunloading efficiencyVSAvoidcoordination complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system divides the grain transfer process into discrete segments: harvesters deliver grain to a moving conveyance device, which then transfers it to the grain cart. Each harvester operates semi-independently, allowing simultaneous unloading while maintaining individual control capability for safety and coordination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system continuously monitors grain flow rates, harvester positions, and grain cart capacity, adjusting conveyance device operation and harvester delivery rates in real-time. This feedback mechanism coordinates multiple harvesters simultaneously while preventing overload and avoiding collisions through dynamic position and speed adjustment.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If grain transfer is coordinated between moving harvesters and grain cart, then operational flexibility and adaptability are improved, but control system complexity increases

Engineering Contradiction:
Improveoperational flexibilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The grain conveyance device is designed as a moving platform that dynamically adjusts its position, speed, and orientation to match the movement of harvesters and the grain cart. This dynamic adaptability allows the system to operate flexibly across varying terrain and speeds without requiring a complex fixed infrastructure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control system integrates multiple functions into a single coordinated platform: it manages grain flow regulation, position control, speed synchronization, and collision avoidance for multiple harvesters simultaneously. This multi-functional approach reduces overall system complexity compared to having separate control systems for each function.

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

3Manufacturing precision

If grain flow is balanced across multiple harvesters, then grain distribution uniformity is improved, but transfer coordination difficulty increases

Engineering Contradiction:
Improvegrain distribution uniformityVSAvoidtransfer coordination difficulty
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Flow sensors monitor grain delivery rates from each harvester in real-time, and the control system adjusts conveyance device parameters and harvester delivery speeds to maintain uniform grain distribution. This continuous feedback and adjustment ensures balanced grain flow while managing coordination complexity through automated control.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts operational parameters such as conveyance device speed, harvester delivery rate, and grain flow volume to optimize grain distribution uniformity. By changing these parameters in response to real-time conditions, the system achieves precise grain distribution while simplifying coordination through parameter-based control rather than complex mechanical adjustments.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS8396632B2Multiple harvester unloading system
Publication Date: 2013.03.12 DEERE & CO
  • US8396632B2 patent drawing
  • US8396632B2 patent drawing
  • US8396632B2 patent drawing

AI summary

A grain moving system providing for single point unloading of harvesters to a grain cart. There are a plurality of harvesting machines including a first harvesting machine and a second harvesting machine. The first harvesting machine being configured to deliver grain to the grain cart. The first harvesting machine receiving grain from the second harvesting machine. The first harvesting machine being configured for the coordination of grain transfer.