Wireless Audiometric Testing Device with Inductive Charging
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Solution Overview
Problem
Traditional audiometric testing devices are limited by their size, autonomy, and compatibility with control units, requiring physical connection for charging and data transfer, and restrictive parameter settings, which hinders flexibility and convenience in various testing environments.
Innovation Solution
A wireless, digital, battery-powered audiometric testing device with a microcontroller connected to RAM, SD card, wireless communication module, and sound processor, enabling low-level communication protocols, flexible parameter settings, and compatibility with various control units and transducers, along with wireless charging and data transfer, allowing for manual or automatic operation and use with different sound transducers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional audiometric testing devices are used, then they provide stable and reliable testing functions, but they have large size and weight requiring physical connection for charging and data transfer
Solution Approach 1:
The patent replaces mechanical connections (physical charging ports and data transfer cables) with wireless technologies. The battery charging system uses electromagnetic induction through a charging coil, and data transfer uses wireless communication modules, eliminating the need for physical connectors and reducing setup time.
Solution Approach 2:
The device integrates multiple functions into a single unit: battery power supply with wireless charging, data storage with SD card, wireless communication for data transfer, and audio processing. This consolidation reduces the overall device size and eliminates the need for separate external equipment.
2Adaptability or versatility
If traditional audiometric testing devices are used, then they provide stable testing functions, but they require physical connection for charging and data transfer
Solution Approach 1:
The device is designed to work with multiple types of control units (PCs, smartphones, tablets) through universal wireless communication protocols. The system can operate in both autonomous mode and controlled mode, accepting commands from various external devices without requiring specific physical connections or proprietary interfaces.
Solution Approach 2:
The patent replaces mechanical connection requirements with wireless communication technology. The wireless communication module enables data exchange between the audiometric device and control units without physical cables, simplifying the connection process and increasing compatibility across different device types.
3Adaptability or versatility
If traditional audiometric testing devices are used, then they provide reliable operation, but they have restrictive parameter settings
Solution Approach 1:
The device features dynamic parameter adjustment capabilities where testing parameters (frequency, intensity, duration) can be modified in real-time during operation. The microcontroller allows programmable control of audio signal parameters, enabling flexible test protocols without requiring physical reconfiguration or limited predefined settings.
4Ease of operation
If battery-powered wireless operation is implemented, then portability and convenience are improved, but power supply reliability may be compromised
Solution Approach 1:
The device includes an autonomous power management system with rechargeable battery and wireless charging capability. The battery management circuit automatically monitors charge levels, manages power distribution to various components, and enables recharging without external intervention, ensuring continuous reliable operation while maintaining portability.
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 device provides enhanced flexibility and convenience in audiometric testing by enabling wireless operation, easy transportation, and compatibility with diverse control units and transducers, reducing setup time and increasing reliability through wireless charging and data transfer, while allowing for customizable test protocols.
Implementation Method 1
battery charging system, which operates inductively
Data Source
Figure 1
AI summary
The audiometric testing device powered by a battery (13) consisting of a microcontroller (1) connected to a button (15), characterised in that the microcontroller (1) is connected by RAM memory (2), SD card (3), wireless communication module (4) and sound processor (6), where the wireless communication module (4) is also connected to the RF path (5) and the sound processor (6) is connected by a DAC/ADC codec (7), and the battery (13) is connected to the wireless charging system (14).