Earphone Vibrator Detection Using Acceleration Sensor
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Solution Overview
Problem
Current earphone vibrator detection relies on manual methods, which are cumbersome and labor-intensive, leading to inconsistent quality due to human factors and lack of standardized measurement.
Innovation Solution
A device and system utilizing an acceleration sensor and signal conversion module placed on the headset's headband to detect acceleration information, converting it into digital signals for the control terminal to determine if the vibration amplitude meets specified ranges, thereby assessing the vibrator's quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual detection method is used, then flexibility and simplicity are maintained, but productivity is low and measurement precision is inconsistent
Solution Approach 1:
The patent replaces the manual mechanical detection system with an automated detection system using acceleration sensors and signal processing. The acceleration sensor detects vibration characteristics of the earphone vibrator, and the processor automatically analyzes the data to determine compliance, eliminating manual inspection while maintaining detection accuracy.
Solution Approach 2:
The patent introduces an acceleration sensor as an intermediary device between the vibrator and the detection system. The sensor converts physical vibration into electrical signals that can be processed by the control unit, enabling automated detection without direct human involvement in the measurement process.
2Measurement precision
If manual detection is used, then device complexity remains low, but measurement precision and reliability are compromised due to human factors
Solution Approach 1:
The patent replaces manual measurement with automated sensor-based measurement. The acceleration sensor objectively measures vibration amplitude and characteristics, eliminating subjective human judgment and ensuring consistent, precise measurements across all products inspected.
Solution Approach 2:
The system incorporates feedback through the processor that receives acceleration data from the sensor, compares it against predetermined standards, and provides automated compliance determination. This closed-loop feedback ensures measurement precision and reliability by objectively evaluating each vibrator against established criteria.
3Reliability
If automated detection with acceleration sensor is implemented, then productivity and measurement precision are improved, but device complexity increases
Solution Approach 1:
The patent designs the detection device with multi-functionality, where the acceleration sensor and processor can evaluate multiple vibration parameters (amplitude, frequency, waveform) using the same hardware platform. This universal approach improves reliability across different measurement tasks while avoiding the need for multiple specialized devices.
Solution Approach 2:
The acceleration sensor serves as a reliable intermediary that converts complex mechanical vibration into standardized electrical signals. This intermediary layer ensures consistent data acquisition and processing, improving measurement reliability while managing system complexity through standardized signal conversion.
4Loss of time
If manual inspection is used, then ease of operation is maintained, but loss of time and productivity are negatively impacted
Solution Approach 1:
The patent replaces time-consuming manual inspection with rapid automated detection. The acceleration sensor and processor quickly analyze vibration characteristics and determine compliance, significantly reducing detection time per product while maintaining operational simplicity through automated decision-making.
Solution Approach 2:
The detection system performs self-service by automatically acquiring vibration data, processing the signals, comparing results against standards, and providing compliance determination without human intervention. This self-service capability eliminates time loss associated with manual inspection while keeping the system easy to operate.
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
Automates the detection process, ensuring consistent quality assessment by accurately determining if the vibration amplitude is within acceptable ranges and identifying reverse installation issues, improving efficiency and eliminating human error.
Implementation Method 1
the acceleration sensor is configured to detect the acceleration information of the headband position when the headset outputs a specified audio, and convert the acceleration information into a voltage signal
Data Source
AI summary
The present invention discloses an earphone vibrator detection device, system and method. The device of the present invention is suitable for detecting a headset vibrator, and being placed at the headband position of the headset during detection. The device comprises an acceleration sensor and a signal conversion module mutually connected; the acceleration sensor is configured to detect the acceleration information of the headband position when the headset outputs a specified audio, and convert the acceleration information into a voltage signal to be output to the signal conversion module; and the signal conversion module is configured to convert the received voltage signal into a digital signal to be output, so as to determine whether the vibration amplitude of the headset vibrator is qualified according to the output digital signal. The technical solution of the present invention solves the problem that the detection of a headset vibrator is currently conducted manually in a cumbersome and laborious manner.