Irrigation Additive Pump Control for Uniform Field Application
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional irrigation systems face challenges in maintaining uniform application rates of fluid additives due to deviations in the actual speed of movement from the intended speed, leading to unpredictable variations in the application rate of both primary fluid and additives, which can result in inefficiencies or toxic conditions.
Innovation Solution
A fluid additive pumping apparatus that adjusts the rate of pumping and injection of additives into the primary fluid based on real-time monitoring of the irrigation system's actual speed, using a pump apparatus controller to compensate for variations in movement, ensuring a predefined amount of additive is applied over a predefined field sector.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the irrigation system operates at a fixed pumping rate based on intended speed, then the system is simple to operate, but the application rate becomes unpredictable when actual speed deviates from intended speed
Solution Approach 1:
The system employs a feedback mechanism where the actual speed of the irrigation system is continuously monitored and used to adjust the pumping rate of the fluid additive. The controller receives speed information and modifies the pumping rate accordingly to maintain uniform application, resolving the contradiction between measurement precision and device complexity by implementing a relatively simple feedback loop.
Solution Approach 2:
The pumping rate is made dynamic rather than fixed, allowing it to vary in response to actual operating conditions. The system transitions from a static pumping rate based on intended speed to a dynamic pumping rate that adapts to actual speed variations, ensuring consistent application rates despite speed fluctuations.
2Reliability
If the pumping rate is adjusted to compensate for speed variations, then the application rate uniformity is improved, but the system complexity increases
Solution Approach 1:
The controller uses feedback from actual speed measurements to automatically adjust the pumping rate, improving application rate consistency without requiring complex manual intervention. The feedback loop continuously monitors speed and makes real-time adjustments to maintain reliable application rates.
Solution Approach 2:
The system performs self-adjustment by automatically modifying the pumping rate based on monitored speed conditions. The controller autonomously compensates for speed variations without requiring external intervention, enhancing reliability while keeping the control system relatively simple through self-service operation.
3Adaptability or versatility
If a fixed pumping rate is used, then the device is easier to operate, but the system cannot adapt to field conditions that cause speed deviations
Solution Approach 1:
The pumping rate transitions from a fixed value to a dynamic parameter that automatically adapts to field conditions. The system adjusts the pumping rate in response to actual speed variations caused by different field conditions, providing adaptability while maintaining ease of operation through automatic control.
Solution Approach 2:
The system uses feedback from speed sensors to automatically adjust the pumping rate, enabling adaptation to varying field conditions without requiring operator intervention. This feedback mechanism provides versatility in handling different field conditions while keeping the system easy to operate through automated adjustments.
Data Source
AI summary
An apparatus may include a reservoir configured to hold a fluid additive, an injector element to inject the fluid additive into the primary fluid applied to a ground surface by the irrigation apparatus, a flow sensor to measure the flow of the fluid additive from the reservoir to the injector element, and a pump apparatus controller configured to maintain a rate of pumping of the fluid additive based on the output of the flow sensor. The additive pumping apparatus configured to vary a pump motor speed and thereby the rate at which the fluid additive may be pumped into the primary fluid of the fluid application assembly, the adjustment to the pumping rate being based upon the current position and the actual speed of movement of the distal-end of the outermost span of the irrigation apparatus in the field.