Harvester Reel Load Sensor Feedback for Crop Monitoring
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Solution Overview
Problem
Agricultural harvester operators lack sufficient feedback to effectively control the reel assembly during the harvesting process, leading to reduced efficiency.
Innovation Solution
A monitoring system that includes a load sensor coupled to the tine rotation mechanism of the reel assembly, which outputs a sensor signal indicative of the mechanism load, and a controller that determines the crop load based on this signal, allowing for real-time adjustments to improve harvesting efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operator controls the reel assembly without sufficient feedback, then the system complexity remains low, but the harvesting efficiency decreases
Solution Approach 1:
The patent implements a feedback mechanism by coupling a load sensor to the tine rotation mechanism that outputs a sensor signal indicative of the mechanism load. The controller receives this sensor signal and determines the crop load based on the signal, providing real-time feedback to the operator about the reel assembly's operating conditions. This enables the operator to make informed adjustments to control the agricultural harvester parameters effectively, thereby resolving the contradiction between maintaining low system complexity and improving harvesting efficiency through feedback.
2Productivity
If a monitoring system with load sensor is added to provide feedback, then the harvesting efficiency improves, but the device complexity increases
Solution Approach 1:
The monitoring system incorporates a load sensor coupled to the tine rotation mechanism that provides real-time feedback on mechanism load through a sensor signal. The controller receives and processes this signal to determine crop load, enabling efficient harvesting operations. This feedback mechanism directly addresses the technical contradiction by improving harvesting efficiency through informed operator control while maintaining a relatively simple system architecture.
Solution Approach 2:
The load sensor acts as an intermediary element that bridges the physical mechanism (tine rotation) and the control system (controller). By coupling the sensor to the tine rotation mechanism and having it output a sensor signal indicative of mechanism load, the system introduces a minimal complexity intermediary that enables effective monitoring and control, thereby improving harvesting efficiency without substantially increasing overall system complexity.
3Measurement precision
If the operator manually controls reel parameters without feedback, then the ease of operation is maintained, but the measurement precision of crop load is insufficient
Solution Approach 1:
The load sensor coupled to the tine rotation mechanism provides direct measurement of mechanism load through a sensor signal. The controller receives this signal and determines crop load based on the measured data, delivering precise measurement information to the operator. This feedback mechanism enables the operator to control reel parameters with precise measurement guidance while maintaining straightforward operational procedures, thus resolving the contradiction between measurement precision and ease of operation.
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 monitoring system provides operators with critical feedback on crop load, enabling them to control the harvester parameters more effectively, thereby enhancing the efficiency of the harvesting process.
Implementation Method 1
a load sensor configured to couple to a non-rotating element of a tine rotation mechanism of the reel assembly... and the load sensor is configured to output a sensor signal indicative of a mechanism load applied by the tines
Data Source
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AI summary
A monitoring system (400) for a reel assembly (300) of an agricultural harvester (100) includes a load sensor (402) configured to couple to a non-rotating element of a tine rotation mechanism (306) of the reel assembly (300). The tine rotation mechanism is configured to drive tines (302) of the reel assembly (300) to rotate relative to a rotating structure (304) of the reel assembly (300), and the load sensor (402) is configured to output a sensor signal indicative of a mechanism load applied by the tines (302) to the non-rotating element of the tine rotation mechanism (306). The monitoring system (400) also includes a controller (406) communicatively coupled to the load sensor (402). The controller (406) includes a memory (410) and a processor (408), and the controller (406) is configured to receive the sensor signal from the load sensor (402) and to determine a crop load of crops acting on the tines based on the mechanism load.