Liquid Level Sensing Apparatus Dynamic Beam Control
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Solution Overview
Problem
Existing liquid level sensing apparatuses face challenges in accurately measuring liquid levels at long distances due to poor signal-to-noise ratios, especially when the measured target has uncertain geometric surfaces or is in environments with significant interference, leading to incorrect detection and weak signal reception.
Innovation Solution
A liquid level sensing apparatus comprising a sensing module, a long-distance command receiving module, and a brake module that automatically adjusts to maintain a predetermined signal-to-noise ratio by dynamically following the target and optimizing the radiation field pattern, using wireless or self-feedback mechanisms for continuous 360-degree scanning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the sensing apparatus uses wide beam angles for long-distance sensing, then the sensing range is improved, but the signal-to-noise ratio deteriorates
Solution Approach 1:
The patent applies dynamics by making the beam angle adjustable rather than fixed. The sensing apparatus dynamically changes the beam angle based on the measured distance to the target, using a narrow beam angle for long distances to maintain signal-to-noise ratio and wider angles for shorter distances to maximize sensing range.
Solution Approach 2:
The patent changes the parameter of beam angle based on distance measurements. By adjusting the beam angle parameter according to the distance to the target, the system optimizes both sensing range and signal-to-noise ratio for different operating conditions.
2Length of stationary object
If the sensing apparatus transmits signals at high power for long-distance detection, then the detection range is improved, but the noise interference increases
Solution Approach 1:
The transmitting power is made dynamic rather than fixed. The system adjusts transmitting power based on the distance to the target, using lower power for long distances to reduce noise interference while maintaining sufficient signal strength, and higher power for shorter distances to maximize detection capability.
Solution Approach 2:
The system uses feedback by measuring the distance to the target and using this information to adjust the transmitting power. This closed-loop control ensures optimal power levels are used for each detection scenario, reducing unnecessary noise while maintaining detection range.
3Device complexity
If the sensing apparatus uses fixed radiation patterns, then the device complexity is reduced, but the adaptability to different targets deteriorates
Solution Approach 1:
The radiation pattern is made dynamic and adjustable rather than fixed. The system can change radiation patterns based on the characteristics of the target and distance, improving adaptability to different targets while using a controlled adjustment mechanism to manage 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 solution enhances the signal-to-noise ratio, enabling accurate measurement of liquid levels with improved radiation field patterns and reduced noise, achieving a signal-to-noise ratio of up to 40 dB, even in challenging environments.
Implementation Method 1
The sensing module transmits a sensing signal to the measured target. The sensing signal touches the measured target to reflect back a reflected signal.
Data Source
AI summary
A liquid level sensing apparatus (10) for long-distance automatically enhancing a signal-to-noise ratio is applied to a measured target (20). The liquid level sensing apparatus (10) includes a sensing module (102), a long-distance command receiving module (104) and at least a brake module (106). The sensing module (102) transmits a sensing signal (108) to the measured target (20). The sensing signal (108) touches the measured target (20) to reflect back a reflected signal (110). The sensing module (102) receives the reflected signal (110) to measure the signal-to-noise ratio and to measure a height of the measured target (20). The long-distance command receiving module (104) is electrically connected to the sensing module (102). The long-distance command receiving module (104) receives a long-distance command signal (302). The brake module (106) is mechanically connected to the sensing module (102).