Self-Diagnostic Sprinkler with Motion Sensor for Ice Detection
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Solution Overview
Problem
Sprinklers used for agricultural irrigation in temperate or cold climates often malfunction due to ice accumulation, leading to reduced effectiveness in preventing frost damage to crops.
Innovation Solution
A self-diagnostic sprinkler system equipped with a motion sensor and controller that detects when the sprinkler head ceases to rotate, emitting a signal to alert operators of potential ice obstruction, allowing for timely inspection and maintenance to prevent malfunction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sprinklers are used for irrigation in cold climates, then crops can be protected from frost damage, but the sprinklers may malfunction due to ice accumulation
Solution Approach 1:
The motion sensor continuously monitors sprinkler head rotation before ice accumulation can cause malfunction. By detecting rotation cessation in advance, the system alerts operators to potential ice obstruction before it completely blocks water flow, enabling preventive maintenance
Solution Approach 2:
The system implements a feedback loop where the motion sensor detects sprinkler head movement status and sends signals to a central monitoring system. This continuous feedback allows real-time detection of rotation abnormalities caused by ice accumulation, enabling timely intervention
2Reliability
If motion sensors and controllers are added to detect sprinkler malfunction, then malfunction can be detected earlier, but the device complexity increases
Solution Approach 1:
The sprinkler system performs self-diagnosis through the motion sensor that automatically monitors its own operation status. The sensor detects when the sprinkler head stops rotating and autonomously generates an alert signal, eliminating the need for manual inspection and reducing operational complexity
Solution Approach 2:
The patent replaces manual inspection methods with automated electronic monitoring. The motion sensor uses optical or electromagnetic fields to detect rotation rather than mechanical switches, reducing wear and simplifying the monitoring mechanism while improving reliability
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
The system ensures continuous and uniform irrigation, reducing frost damage to crops by promptly identifying and addressing ice-related malfunctions in sprinklers, thereby maintaining effective water distribution during frost events.
Implementation Method 1
the rotor blades and the rotor shaft configured to be rotated by the fluid flowing along the flow path
Implementation Method 2
an electrical generator coupled to the rotor shaft
Data Source
AI summary
A sprinkler has an internal cavity where fluid is configured to flow through the internal cavity along a flow path extending from an inlet to an outlet. A sprinkler head is in fluid communication with the internal cavity of the body and is rotatable about a sprinkler head axis. A sprinkler power assembly generates electrical power for diagnostics of the sprinkler, such as a motion sensor oriented toward the sprinkler head. The motion sensor is configured to emit a motionless signal upon the sprinkler head ceasing to rotate about the sprinkler head axis.