Agricultural Sprayer Control System for Boom Vibration
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Solution Overview
Problem
Agricultural sprayers face challenges in maintaining precise spray application due to boom vibrations induced by external disturbances, leading to uneven distribution of fertilizers and chemicals, which can result in waste and reduced yields.
Innovation Solution
A control system that utilizes an imaging sensor to monitor the spray pattern and adjust the sprayer's velocity to minimize boom vibrations, ensuring the spray performance meets a target threshold by generating control signals to stabilize the boom position and velocity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the sprayer travels at higher velocity across the field, then productivity increases, but boom vibrations increase causing spray performance degradation
Solution Approach 1:
The system continuously monitors spray performance using sensors (imaging sensors, flow sensors, pressure sensors) and feeds this information back to the control system. The control system adjusts sprayer velocity based on real-time spray quality metrics, reducing velocity when vibrations cause poor spray performance and increasing velocity when spray quality is acceptable, thus resolving the contradiction between productivity and boom stability.
Solution Approach 2:
The system dynamically adjusts sprayer velocity based on real-time conditions rather than maintaining a constant speed. The control system modifies operational parameters (velocity, boom height) on-the-fly in response to detected vibrations and spray quality, allowing the system to adapt to changing field conditions and optimize the balance between speed and spray performance.
2Stability of the object's composition
If the sprayer velocity is reduced to minimize boom vibrations, then spray performance improves, but productivity decreases
Solution Approach 1:
The control system uses real-time feedback from spray quality sensors to determine when velocity reduction is necessary. By continuously monitoring spray performance metrics, the system can minimize velocity adjustments and maintain higher productivity speeds as long as spray quality remains within acceptable thresholds, only reducing velocity when necessary to prevent performance degradation.
Solution Approach 2:
The system changes operational parameters (velocity, boom height, nozzle spacing) dynamically based on detected conditions. When vibrations are detected that threaten spray quality, the system adjusts multiple parameters simultaneously to restore optimal spray performance while minimizing the impact on overall productivity.
3Reliability
If external disturbances (wind, ground level changes) are encountered, then spray application becomes uneven, but the sprayer cannot change velocity to compensate
Solution Approach 1:
The system employs sensors (imaging sensors, flow sensors, pressure sensors, GPS) to continuously monitor spray performance and field conditions. This feedback enables the control system to detect disturbances such as wind or ground level changes and automatically adjust velocity to compensate for their effects on spray uniformity, maintaining reliable spray application despite varying external conditions.
Solution Approach 2:
The control system dynamically adjusts sprayer velocity in real-time response to detected disturbances and spray quality metrics. When disturbances cause uneven spray application, the system modifies operational parameters on-the-fly to restore uniformity, demonstrating adaptability to changing field conditions while maintaining spray reliability.
Data Source
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AI summary
An agricultural sprayer includes a spray boom supported by a frame, a spraying system comprising a set of spray nozzles spaced along the spray boom, and a control system configured to control the spraying system to spray a liquid based on a target application to an agricultural field, generate a spray performance metric indicative of performance of the spraying system relative to the target application, and generate a control signal to control the agricultural sprayer based on the spray performance metric.