Agricultural Header Damping for Accurate Impact Location Sensing
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Solution Overview
Problem
Existing agricultural harvesters face challenges in accurately determining the location of initial contact between crop ears and header components, leading to inefficiencies in separating usable crop material from stalks, which can result in unwanted material being fed into processing machinery.
Innovation Solution
An impact sensor system with damping features, such as plastic hoods or variable damping materials, coupled with sensors on the header, to attenuate vibrations and enhance the detection of initial contact locations, allowing for precise determination of impact points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are placed on the header to detect initial contact vibrations, then the location of initial contact can be determined, but the vibrations are too strong and noisy to provide accurate detection signals
Solution Approach 1:
A damping element is positioned between the crop and the header component before initial contact occurs. This damping element absorbs and attenuates the vibrations generated during initial contact, reducing the noise level. The sensors can then detect the softened vibration signals more accurately, enabling precise determination of the initial contact location without being overwhelmed by strong vibration noise.
2Productivity
If the header position is adjusted to optimize crop contact, then harvesting efficiency improves, but the system complexity increases
Solution Approach 1:
The sensors detect the location of initial contact between the crop and the header, providing feedback information to the control system. Based on this feedback, the system automatically adjusts the header position and orientation to optimize crop contact. This closed-loop feedback mechanism improves harvesting efficiency while automating the adjustment process, reducing the need for complex manual intervention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables reliable and accurate assessment of initial contact locations, optimizing harvesting operations by adjusting header position and orientation to minimize stalks entering processing machinery, thereby enhancing crop yield and efficiency.
Implementation Method 1
a damping feature configured to couple to the header to attenuate vibrations due to initial contact between a crop and the header to form attenuated vibrations
Data Source
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AI summary
An impact sensor system for a header (200) of an agricultural system (100) includes a damping feature (218, 600) configured to couple to the header (200) to attenuate vibrations due to initial contact between a crop and the header (200) to form attenuated vibrations. The impact sensor system also includes one or more sensors (220, 222, 602, 604) configured to couple to the header (200) and to generate signals in response to detection of the attenuated vibrations. The impact sensor system also includes a controller (510) configured to receive the signal and process the signals to determine a location of the initial contact between the crop and the header (200).