Sensor-Controlled Filling Faucet for Precise Water Level Shutoff
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Solution Overview
Problem
Conventional faucets lack precision in controlling water flow, often leading to overfilling of containers, as users struggle to adjust the handle to stop the water flow at the right time, resulting in water wastage.
Innovation Solution
A faucet system equipped with a water level sensor and controller that detects the water level in a container and automatically shuts off the water flow when it reaches a predetermined distance from the outlet, using a multi-configuration spray head with angled and parallel nozzles to provide visual indication and precise filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual handle control is used to initiate and stop water flow, then the faucet structure remains simple, but the precision of water flow control deteriorates leading to overfilling and water wastage
Solution Approach 1:
The patent implements automatic feedback control by using a water level sensor to detect the water level in the container and automatically shutting off the water flow when the water reaches a predetermined level. The controller receives signals from the water level sensor and automatically adjusts the valve position, eliminating the need for manual monitoring and precise handle control by the user.
Solution Approach 2:
The patent replaces the manual mechanical handle control system with an automated electronic control system. The electronic controller and water level sensor substitute for the manual mechanical operation, using electronic signals and automated valve control to achieve precise water flow management without requiring user intervention.
2Productivity
If high rate water flow is used to fill container quickly, then productivity improves, but the difficulty of detecting and measuring water level deteriorates making it hard to stop at the right time
Solution Approach 1:
The automatic feedback control system continuously monitors the water level through the water level sensor and automatically adjusts the flow rate and shutdown timing. This allows the system to operate at high productivity while maintaining precise water level detection and control, eliminating the trade-off between filling speed and detection accuracy.
Solution Approach 2:
The system performs self-service by automatically detecting the water level and controlling the shutdown without requiring user intervention. The controller and water level sensor work together to autonomously manage the filling process, ensuring accurate water level detection even during high-rate filling operations.
Data Source
AI summary
A faucet includes a spout, a water level sensor, and a controller. The spout includes a water outlet having a first set of nozzles oriented at an angle with respect to a central axis defined by the water outlet such that water discharged from the first set of nozzles converges at the central axis at a focal distance from the water outlet. The water level sensor is disposed on the spout, and is configured to detect a distance between the water outlet and a level of water in a container disposed below the water outlet. The controller is configured to control the flow of water through the water outlet based on a comparison between the detected distance and the focal distance.