Proximity Sensor Mounting for Turbulent Water Level Control
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Solution Overview
Problem
Existing automated water level control systems for pools and containers face challenges in accurately differentiating between actual and perceived changes in liquid level due to surface turbulence, leading to inaccurate data and inconsistent sensor mounting, which affects the accuracy and reliability of water level monitoring and maintenance.
Innovation Solution
A system comprising a proximity sensor with a novel mounting assembly and algorithms that measures mean surface level changes in a contained body of fluid, using a sensor assembly with conductors encapsulated in non-conductive material and a remote controller to accurately monitor and control water levels, capable of transmitting signals for automatic water fill or shut-off, and a kit for easy mounting and precise operational level maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If sensitive sensors are used to measure water level changes rapidly, then measurement speed is improved, but noise from surface turbulence increases
Solution Approach 1:
The patent introduces an intermediary substance (dye or fluorescent tracer) added to the water that interacts with the sensor. This intermediary enhances the sensor's ability to detect water level changes by providing a stronger, more distinct signal that is less susceptible to turbulence-induced noise, thereby resolving the contradiction between fast measurement and signal accuracy
Solution Approach 2:
The patent changes the physical parameters of the water by adding substances that alter its optical or electrical properties. This modification creates more pronounced changes in these parameters in response to water level variations, enabling faster and more accurate detection while reducing the impact of surface turbulence noise
2Ease of operation
If sensors are mounted at arbitrarily selected locations, then installation ease is improved, but measurement consistency deteriorates
Solution Approach 1:
The patent segments the sensor mounting system into modular components with standardized mounting interfaces and reference markers. This segmentation allows sensors to be easily installed at different locations while maintaining consistent measurement through standardized positioning procedures, resolving the contradiction between ease of installation and measurement precision
Solution Approach 2:
The patent establishes a standardized reference level or mounting plane that ensures all sensors are positioned at equivalent operational heights relative to the water surface. This equipotentiality approach allows arbitrary installation locations to yield consistent measurements by normalizing the sensor's operational conditions through standardized mounting procedures
3Reliability
If baffles or physical means are used to reduce water level fluctuations, then signal stability is improved, but device complexity increases
Solution Approach 1:
The patent replaces mechanical baffles or physical obstruction methods with non-mechanical signal processing techniques. This substitution uses electronic or optical signal processing to filter out turbulence noise while maintaining fast measurement capability, thereby improving signal stability without increasing mechanical system complexity
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 provides rapid and accurate monitoring and maintenance of water levels, improving the signal-to-noise ratio and reducing variability in mounting, enabling precise control of water levels and leak detection, while also conserving water and monitoring liquid inventory in real-time.
Implementation Method 1
measuring the amount of time required for the conductors to charge to a preset potential
Data Source
AI summary
An automated system for monitoring and maintaining fluid level in a swimming pool, spa, or other environment containing water is provided. The system includes a sensor assembly having a microprocessor and a proximity sensor encapsulated in a non-conductive material. A lower section of the sensor assembly has a flat profile and at least a portion of the proximity sensor is positioned in the lower section. The sensor assembly transmits a signal to a remote controller when the water level measured is above or below a predetermined target value. The remote controller in turn causes a remote water valve to turn on or off. In certain implementations, the sensor assembly incorporates a precision mounting system and algorithm, which work together to provide the end user with a means to mount the sensor easily and maintain precise operational level of the water. The combination of the physical mounting system and the range and resolution of the proximity sensor allow for precise maintenance of water level at the preferred level.