Agricultural Sprayer Boom Control for Nozzle Overspeed Limits
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Solution Overview
Problem
Agricultural sprayers face challenges in maintaining accurate spraying operations due to nozzle assemblies moving at speeds exceeding the ground speed limit or experiencing relative movements with respect to the sprayer, leading to inefficiencies and inaccuracies in applying agricultural substances.
Innovation Solution
Implementing a system with computing devices to control the sprayer's speed and nozzle operations based on sensor feedback, monitoring travel speeds and fore-to-aft movements, and automatically adjusting operations to ensure the nozzle assemblies operate within predetermined limits, switching to continuous spray modes when necessary to maintain effective application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the sprayer operates at higher ground speeds to increase productivity, then productivity improves, but the nozzle assemblies may exceed the reaction time limit for accurate spraying control
Solution Approach 1:
The system dynamically adjusts the operational parameters of the nozzle assemblies based on real-time speed measurements. When the sprayer operates at higher ground speeds, the control system modifies the spraying control parameters to account for the reduced reaction time, maintaining spraying accuracy despite the speed increase.
Solution Approach 2:
The system incorporates speed sensors that continuously monitor the actual ground speed of the sprayer and provide feedback to the control system. This feedback enables the control system to adjust the spraying operations in real-time, ensuring that the nozzle assemblies maintain accurate control even when operating at speeds that would normally exceed the reaction time limit.
2Adaptability or versatility
If the boom sections are allowed to move freely to adapt to field conditions, then adaptability improves, but the travel speed of nozzle assemblies may exceed the ground speed limit
Solution Approach 1:
The system dynamically monitors the travel speed of individual nozzle assemblies relative to the sprayer's ground speed. When boom movement causes a nozzle assembly to exceed the ground speed limit, the control system identifies this condition and adjusts operations to maintain spraying precision.
Solution Approach 2:
Speed sensors mounted on the boom sections provide real-time feedback on the relative movement and travel speed of each nozzle assembly. This feedback enables the control system to detect when a nozzle assembly exceeds the ground speed limit due to boom movement and take corrective action to maintain spraying accuracy.
3Loss of time
If the sprayer travels at maximum ground speed to reduce operation time, then operation time decreases, but sensor feedback accuracy deteriorates due to relative movements
Solution Approach 1:
The system dynamically compensates for the effects of high-speed operation on sensor feedback accuracy. By monitoring the actual ground speed and boom section movements, the control system adjusts the interpretation and response to sensor data, maintaining detection accuracy even when the sprayer operates at maximum ground speed.
Solution Approach 2:
The system uses feedback from speed sensors and position sensors to continuously monitor and correct for the effects of high-speed operation. This feedback mechanism allows the control system to maintain accurate field condition detection despite the challenges posed by maximum ground speed operation and associated relative movements.
Data Source
AI summary
A method for performing spraying operations includes controlling a speed system to move an agricultural sprayer across a field at a speed equal to or below a ground speed limit of the agricultural sprayer, receiving data from a field condition sensor indicative of one or more field conditions within the field, and controlling the operation of a plurality of nozzle assemblies provided in association with a boom of the agricultural sprayer to perform a spraying operation based at least in part on the data received from the field condition sensor. The method additionally includes monitoring an operating parameter indicative of a travel speed of each of the plurality of nozzle assemblies, and automatically adjusting an operation of the agricultural sprayer in response to the determination that the travel speed of at least one of the plurality of nozzle assemblies exceeds or is likely to exceed the ground speed limit.