Agricultural Distributor Linkage Inclination Sensor Error Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing agricultural machine regulation and control systems for distributor linkages experience measurement inaccuracies due to faulty inclination sensor signals during cornering, which are not effectively corrected by existing methods that measure rotation rate.
Innovation Solution
Incorporating a second sensor device to determine centrifugal force and acceleration, which allows for error correction of the first sensor device's measurements, and using data processing to account for driving speed and yaw rate to improve measurement accuracy during cornering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a first sensor device is used to determine the inclination of the distribution boom, then the basic control function is provided, but measurement accuracy deteriorates during cornering due to centrifugal forces
Solution Approach 1:
A second sensor device acts as an intermediary to measure centrifugal acceleration, which then serves as a correction input for the first sensor device's inclination measurements. This mediator enables the system to account for disturbing forces during cornering without replacing the original measurement system.
Solution Approach 2:
The system implements feedback by using the second sensor device to detect centrifugal acceleration and feeding this information back to the data processing device, which then corrects the inclination measurements from the first sensor device in real-time based on the detected correction values.
2Measurement precision
If existing correction methods using rotation rate measurement are employed, then some error correction is achieved, but measurement accuracy remains insufficient because only roll movements are detected
Solution Approach 1:
The correction approach is segmented into two independent sensor devices: the first for inclination measurement and the second for centrifugal acceleration measurement. This segmentation allows each sensor to specialize in its specific measurement task and enables comprehensive correction across different driving scenarios including cornering, acceleration, and braking.
Solution Approach 2:
The second sensor device provides universal correction capability that works across multiple driving situations (cornering, acceleration, braking) rather than being limited to roll movements only. This multi-functional approach enhances the system's adaptability to various operational conditions.
3Measurement precision
If a second sensor device for measuring centrifugal force is added, then measurement accuracy during cornering is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical correction mechanisms with a sensor-based electronic correction system. Instead of using mechanical linkages or physical compensation mechanisms, the system uses electronic sensors and data processing to achieve measurement correction, simplifying the overall mechanical structure.
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
Significantly enhances measurement accuracy by directly addressing and correcting for centrifugal forces and accelerations, ensuring precise control of distributor linkages during various driving situations, including cornering.
Implementation Method 1
a second sensor device for determining the centrifugal force FF and/or the centrifugal acceleration aF, which acts on the first sensor device when the machine is cornering
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
The invention relates to a regulating and/or control system for an agricultural machine (2) comprising a distributor linkage (3) for discharging material, such as fertilizer, plant protection agents, or seeds, said distributor linkage being pivotal about at least one rotational axis running in the direction of travel; at least one first sensor device for ascertaining the inclination of the distributor linkage (3); and a data processing device for processing the sensor signals. The invention is characterized by at least one second sensor device for ascertaining the centrifugal force FF and/or the centrifugal acceleration aF acting on the first sensor device when the machine is cornering. The data processing device is designed such that an inclination measuring error of the first sensor device can be corrected on the basis of the sensor signals of the second sensor device.