Automated Headset Reconditioning Device With Impedance Testing
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Solution Overview
Problem
Wired audio headsets in air transport are often crushed or buried due to inefficient recycling methods, which are labor-intensive and costly, making it difficult to quickly and correctly recycle them.
Innovation Solution
A device with impedance control, audio control, cleaning, and cable winding stations, utilizing synchronized conveyors and motorized systems to efficiently process and recondition headsets, distinguishing between reusable and non-reusable units, and applying disinfectant solutions for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual recycling methods are used for wired headphones, then labor costs and time consumption increase significantly, but the ability to properly identify and reuse functional units is improved
Solution Approach 1:
The patent replaces manual inspection and handling with an automated testing device that uses electrical measurements to assess headphone functionality. The device automatically tests impedance, audio output, and cable integrity, eliminating the need for manual testing while maintaining accurate identification of reusable units.
Solution Approach 2:
The device enables self-assessment of headphone functionality through automated testing protocols. The headphones are automatically tested against predefined criteria for cable integrity, impedance ranges, and audio performance, allowing the system to autonomously determine which units are reusable without human intervention.
2Ease of manufacture
If wired headphones are shredded or buried after use, then disposal is simplified, but environmental sustainability and resource waste are worsened
Solution Approach 1:
The patent implements a sorting mechanism that separates functional headphones from non-functional ones based on automated testing results. Functional units are recovered and prepared for reuse, while only truly defective units are discarded. This prevents premature disposal of usable resources and reduces material waste.
Solution Approach 2:
The device performs preliminary functionality assessment before disposal decisions are made. By testing cable integrity, impedance, and audio performance in advance, the system identifies which headphones can be reused, ensuring that disposal actions are taken only for units that cannot be recovered or reused.
3Productivity
If automated testing devices are implemented, then processing speed and productivity increase, but device complexity and initial costs increase
Solution Approach 1:
The testing device is divided into separate functional modules: a cable integrity testing unit that measures resistance, an impedance testing unit that verifies electrical characteristics, and an audio output unit that checks speaker functionality. This modular segmentation allows each component to be simple and specialized, reducing overall system complexity while maintaining high processing speed.
4Measurement precision
If multiple testing parameters are measured, then identification accuracy of reusable units is improved, but measurement time and processing duration increase
Solution Approach 1:
The device performs multiple measurements in continuous sequence without interrupting the headphone being tested. The cable integrity test, impedance measurement, and audio output verification are executed back-to-back in a single automated cycle, maintaining continuous useful action throughout the testing process to minimize total testing time.
Data Source
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AI summary
The invention relates to a device for controlling and cleaning wired audio headsets, each audio headset comprising a headband, two earphones and an electrical cable connected to the earphones and ending in a plug. According to the invention, said device comprises: - impedance control means; - audio control means; - means for cleaning said headsets; - means for winding up the cable of the headset.