Magnetic Detection System with Dual Determination Units
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Solution Overview
Problem
Conventional magnetic detection systems face challenges in reducing the burden on monitoring personnel while maintaining determination accuracy and immediacy, particularly in detecting magnetic bodies approaching ports or similar areas, where partial waveform analysis compromises accuracy and requires increased human intervention.
Innovation Solution
A magnetic detection system that employs multiple magnetic sensors to acquire and process magnetic signals, utilizing a first determination unit for immediate output and a second determination unit with higher accuracy, trained by machine learning, to provide timely and reliable detection results, thereby reducing the monitoring burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a part of the magnetic waveform is used to make the determination, then the immediacy is improved, but the determination accuracy is lowered
Solution Approach 1:
The determination process is segmented into two independent units: the first determination unit that provides immediate results with lower accuracy requirements, and the second determination unit that provides higher accuracy results. This segmentation allows the system to simultaneously satisfy both immediacy and accuracy requirements by having different units handle different aspects of the determination task.
Solution Approach 2:
The system changes the determination parameters between the two units: the first determination unit uses parameters optimized for speed (processing partial waveform with relaxed accuracy thresholds), while the second determination unit uses parameters optimized for accuracy (processing complete waveform with strict accuracy thresholds). This parameter differentiation resolves the contradiction between immediacy and accuracy.
2Measurement precision
If the monitoring person directly confirms the magnetic waveform, then the determination accuracy is improved, but the burden on the monitoring person increases
Solution Approach 1:
The system implements self-service determination through the two determination units that automatically analyze the magnetic waveform and generate determination results without requiring monitoring person intervention. The first determination unit provides automated immediate results, and the second determination unit provides automated accurate results, eliminating the need for monitoring persons to manually confirm waveforms while maintaining high determination accuracy.
3Loss of time
If the first determination result is used alone, then the immediacy is ensured, but the determination accuracy is insufficient
Solution Approach 1:
The system implements a feedback mechanism where the first determination result serves as an immediate indication, and the second determination result provides corrective feedback to verify and refine the initial determination. The notification unit presents both results, allowing the system to leverage the immediacy of the first determination while using the second determination as feedback to ensure overall reliability and accuracy.
4Measurement precision
If the second determination result is used alone, then the determination accuracy is improved, but the output timing is delayed
Solution Approach 1:
The first determination unit performs preliminary action by providing an immediate determination result before the second determination unit completes its more accurate analysis. This preliminary result allows the system to deliver timely information while the more accurate second determination is still being processed, effectively masking the time delay associated with high-accuracy determination.
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 achieves reduced monitoring burden by providing immediate and accurate detection results, ensuring both immediacy and high determination accuracy through parallel processing of first and second determination outputs, complementing each other to enhance overall system performance.
Implementation Method 1
a magnetic sensor (1) configured to be installed underwater to acquire a magnetic signal (10) caused by passage of a magnetic body (90)
Data Source
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AI summary
The magnetic detection system 100 is provided with a magnetic sensor 1, a storage unit 5, a first determination unit 42 for outputting whether or not the magnetic body 90 has passed as a first determination result 20, a second determination unit 43 for outputting whether or not the magnetic body has passed as a second determination result 21, a display unit 6 for displaying (notifying) the first determination result and the second determination result. The second determination unit is configured to have higher determination accuracy than the first determination unit.