Translational Sprinkler Intensity Calculation for Runoff Control
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Solution Overview
Problem
Current methods lack an effective way to calculate instantaneous sprinkling intensity of translational sprinklers, making it difficult to determine if surface runoff in farmland irrigation is due to a mismatch between soil infiltration capacity and sprinkler intensity, hindering movement speed control strategies.
Innovation Solution
A method involving rain gauges to measure water volume, calculating average sprinkled water, establishing a functional relationship between sprinkling intensity and movement time, and substituting specific movement times into this relationship to determine instantaneous sprinkling intensity, considering distribution shapes like elliptical, triangular, or parabolic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If rain gauges are placed close to the translational sprinkler to capture more sprinkled water, then the measurement volume increases, but the measurement precision decreases due to water distribution non-uniformity
Solution Approach 1:
The patent divides the sprinkling area into multiple measurement zones by placing multiple rain gauges at different distances from the sprinkler. Each rain gauge measures local sprinkling intensity, and the data from multiple segments are integrated to obtain the overall instantaneous sprinkling intensity, thereby improving measurement precision while maintaining adequate water volume capture
Solution Approach 2:
The patent transitions from single-point measurement to multi-dimensional spatial measurement by arranging rain gauges in a radial pattern at different distances (0.5m, 1.0m, 1.5m, 2.0m) from the sprinkler. This multi-dimensional measurement approach captures the spatial distribution of sprinkled water and enables more accurate calculation of instantaneous sprinkling intensity
2Quantity of substance
If the translational sprinkler moves slowly to increase water application volume per area, then the sprinkled water volume increases, but the irrigation efficiency decreases and time consumption increases
Solution Approach 1:
The patent establishes a feedback control mechanism where instantaneous sprinkling intensity is continuously measured and used to adjust the translational sprinkler's movement speed. When the measured intensity exceeds the soil infiltration capacity, the system automatically reduces speed to prevent runoff; when intensity is below capacity, speed increases to improve irrigation efficiency, thus optimizing the balance between water application volume and irrigation efficiency
Solution Approach 2:
The patent transforms the traditional fixed-speed operation of translational sprinklers into dynamic speed adjustment based on real-time measurements of instantaneous sprinkling intensity and soil infiltration capacity. The movement speed varies dynamically to match the actual irrigation needs, preventing both water waste from runoff and inefficiency from overly slow movement
3Productivity
If the translational sprinkler moves fast to improve irrigation efficiency, then the productivity increases, but the volume of sprinkled water in unit area decreases
Solution Approach 1:
The patent uses real-time feedback from instantaneous sprinkling intensity measurements to dynamically adjust the movement speed. The system ensures that even at higher speeds, adequate water volume is applied by adjusting speed based on the measured intensity and soil infiltration capacity, thus maintaining both productivity and water application volume
Data Source
AI summary
Disclosed is a method for calculating instantaneous sprinkler strength comprising: ensuring that a translational sprinkler (1) maintains a stable operating state, placing b rain barrels (3) at a distance of a metres from the translational sprinkler (1), and moving the translational sprinkler (1) to obtain measurement data; calculating movement time, and the average sprayed water depth received by the rain barrels (3); assuming the distribution form of the amount of water of the translational sprinkler (1), establishing a function relationship between an instantaneous sprinkler strength ht and the movement time t, and calculating a variable in the function relationship; and substituting into the established function relationship a specific numerical value of an instantaneous point in time t of the movement of the translational sprinkler (1), so that the value of ht obtained is a numerical value of the instantaneous sprinkler strength of the translational sprinkler (1). The calculation method has a simple operation, is fast and can obtain a precise calculation result with relatively low experiment costs.