Dual Microphone Mating Assurance for Noisy Environments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mating assurance systems for electrical connectors in noisy environments, such as automotive assembly factories, often fail to reliably confirm proper mating due to background noise interference and increased costs associated with double casing solutions.
Innovation Solution
A mating assurance system utilizing first and second microphones positioned at different distances from the mating zone to detect audible sounds and filter out background noise, determining the direction of sound origin to ensure accurate mating verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional single microphone systems are used to detect mating sounds, then the system structure is simple, but the system cannot reliably distinguish mating sounds from background noise in noisy factory environments
Solution Approach 1:
The patent divides the single microphone detection function into multiple microphones positioned at different locations (first microphone near the mating zone, second microphone for background noise). This segmentation allows the system to separate the detection of mating sounds from background noise, improving reliability while maintaining manageable complexity through modular microphone placement and independent signal processing channels.
2Reliability
If double casing systems are used to ensure proper mating, then mating assurance is improved, but manufacturing cost and assembly labor time increase
Solution Approach 1:
The patent replaces the mechanical double casing verification system with an acoustic detection system using microphones and signal processing. Instead of requiring a second physical case to verify mating, the system uses acoustic sensors to detect the characteristic sounds of proper connector engagement, eliminating the need for additional mechanical components and reducing assembly complexity while maintaining mating assurance reliability.
3Measurement precision
If audio signal processing is enhanced to filter background noise, then signal accuracy improves, but processing time and computational resources increase
Solution Approach 1:
The patent applies preliminary action by pre-positioning microphones at optimal locations (first microphone close to the mating zone for signal capture, second microphone positioned to capture background noise). This spatial pre-arrangement enables the signal processing algorithm to efficiently separate mating sounds from background noise through comparative analysis, achieving high detection accuracy without requiring complex real-time processing of all ambient sounds.
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
Enhances the reliability of mating confirmation by reducing false positives and improving signal processing speed, while maintaining cost-effectiveness by avoiding the need for double casing, thus ensuring proper electrical connector mating in noisy environments.
Implementation Method 1
first and second microphones configured to be located in a vicinity of a mating zone for electrical connectors, and configured to detect audible sound when the electrical connectors are mated
Data Source
Figure 1~3
Figure 4
Figure 5
AI summary
A mating assurance system (100) includes first and second microphones (110, 111) configured to be located in a vicinity of a mating zone (112) for electrical connectors. The first microphone is located a first distance from the mating zone and the second microphone being located a second distance from the mating zone. The first and second microphones are configured to detect audible sound when the electrical connectors are mated. An output unit (114) is connected to the first and second microphones and receives audio signals from the first and second microphones. The output unit processes the audio signals from the first microphone and from the second microphone for mating assurance.