Hearing aid anti-electromagnetic test method and system

Abstract

The invention relates to the field of hearing aid anti-electromagnetic, in particular to a hearing aid anti-electromagnetic test method and system, and the system comprises a test system which comprises a hardware platform, a software platform and a data transmission end. The hardware platform comprises a signal generator, an electromagnetic interference source and data acquisition and processing equipment; the software platform comprises a data acquisition layer, a data processing layer, a business logic layer and a user interface layer; the system adopts a modular design, each component can be flexibly combined and expanded to adapt to changes of different test requirements, a traditional test system is often fixed and is not easy to expand, automation of a test process is realized through a software system, manual intervention is reduced, the test efficiency and accuracy are improved, and the system has real-time data processing capability and is suitable for popularization and application. Test data can be analyzed in real time and a result can be given, while a traditional test system usually needs to carry out data analysis and result evaluation after a test is finished, and the system is integrated with an intelligent diagnosis module.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hearing aid anti-electromagnetic technology, in particular to a hearing aid anti-electromagnetic test method and system. BACKGROUND

[0002] A hearing aid is a tool, device, apparatus and instrument used by hearing impaired persons to compensate for the defects caused by hearing impairment and to improve the ability to communicate with others. A hearing aid is composed of a microphone, an amplifier, a receiver and a power supply. Hearing aids are divided into low-power, medium-power and high-power according to the degree of sound amplification. When wearing a hearing aid, the relationship between the electroacoustic characteristics of the hearing aid and the hearing characteristics and needs of the patient should be considered.

[0003] In the modern society full of electromagnetic waves, hearing aid users often face the challenge of electromagnetic interference, which can cause the performance of the hearing aid to decline, even cause sound distortion, intermittent sound, etc., which seriously affects the hearing experience and quality of life of the user. The sources of electromagnetic interference are diverse, including wireless communication devices, household appliances, industrial equipment, etc., which makes it particularly difficult for hearing aids to run stably in an electromagnetic environment. The traditional anti-electromagnetic interference test method often has problems such as low test efficiency, high cost, and inaccurate results. The traditional test method usually relies on manual operation, and the test process is tedious and time-consuming. The test environment is difficult to simulate the real electromagnetic interference scene, and the test results are greatly affected by human factors and have poor repeatability. In addition, the traditional test equipment often does not have automatic data collection and analysis functions, resulting in low test efficiency and difficulty in meeting the requirements of modern electronic devices for test accuracy and speed. Therefore, it is necessary to propose a hearing aid anti-electromagnetic test system. SUMMARY

[0004] In view of the problems in the prior art, the present application provides a hearing aid anti-electromagnetic test system.

[0005] The technical solution adopted by the present application to solve its technical problems is: a hearing aid anti-electromagnetic test system, comprising a test system, the test system comprising a hardware platform, a software platform and a data transmission end; The hardware platform comprises a signal generator, an electromagnetic interference source and a data acquisition and processing device; The software platform comprises a data acquisition layer, a data processing layer, a business logic layer and a user interface layer; The data acquisition layer is responsible for communication with the hardware device to ensure accurate data acquisition; sensors, data acquisition cards and other devices are used to collect the signals of the measured object in real time. The sampling rate should meet the Nyquist sampling theorem during signal acquisition to avoid aliasing phenomenon; The data processing layer analyzes the collected data in real time and extracts key information. For a multi-channel test system, it ensures the synchronous acquisition of signals from each channel to avoid time deviation. The collected signals are processed through filtering, amplification, integration, etc. to extract useful information. The business logic layer implements the core functions of the system, such as signal control and interference simulation. The signal transmitter and electromagnetic interference source in the hardware module are controlled by the test system to simulate different interference waves on the hearing aid in cooperation with the business logic layer.

[0006] The user interface layer provides an intuitive operation interface, allowing users to easily set up tests and view results.

[0007] The signal generator is responsible for generating various test signals with high stability and wide frequency range characteristics. It can generate sine waves, square waves, sawtooth waves, etc. to meet different testing needs. The signal generator should have good linearity and low distortion to ensure the accuracy of the test signal.

[0008] The electromagnetic interference source can simulate various interference signals in the actual environment and generate wideband electromagnetic interference sources, including wireless communication signal simulators and broadband noise generators. The electromagnetic interference source can simulate a variety of complex electromagnetic environments, providing a real environment basis for testing the anti-interference performance of hearing aids.

[0009] The data acquisition and processing device uses high-precision data acquisition cards to capture the response signals of the hearing aid under electromagnetic interference in real time, with sufficient sampling rate to meet the needs of high-speed data acquisition. It is equipped with a high-performance computer system for processing and analyzing the collected data. Through special software algorithms, including wisdom tree and neural network combination algorithms, the performance indicators of the hearing aid can be quickly and accurately evaluated, and detailed test reports can be generated.

[0010] The data communication end is the bridge connecting hardware and software, ensuring accurate and error-free data transmission within the system. The choice of communication protocol should ensure the real-time and reliability of data transmission.

[0011] The data delivery end is responsible for recording the performance data of the hearing aid under electromagnetic interference in real time. Including: sound output quality, frequency response, distortion, the data collected by the data acquisition card will be transmitted to the controller for analysis, and the controller will judge the performance of the hearing aid according to the preset evaluation standard.

[0012] A method for using a hearing aid anti-electromagnetic test system, comprising the following steps: First step: The establishment of the test environment is the prerequisite for effective testing, which needs to build a test platform in a laboratory environment with controllable electromagnetic interference, ensure that the laboratory is far away from strong electromagnetic interference sources, use an electromagnetic shield room to simulate electromagnetic interference in the real environment, and configure all the hardware devices required for testing, including signal generators, electromagnetic interference sources, data acquisition cards, etc., and ensure that their connections are correct and accurate. Second step: Preheat the equipment: Ensure that all test equipment has been fully preheated before testing to ensure the accuracy of the test. Set test parameters: According to the test requirements, set the frequency, amplitude, etc. of the signal generator, and the interference type and intensity of the electromagnetic interference source; Start testing: Start the test system, apply electromagnetic interference to the hearing aid, and collect the response data of the hearing aid in real time; Data recording: During the test, the system automatically records data, including the output signal of the hearing aid and the intensity of the interference signal; Test repetition: In order to improve the reliability of the test results, each test step needs to be repeated several times, and the average value is calculated.

[0013] Third step: After the test is completed, the test system will transmit the collected data to the data processing software for analysis, and the analysis process includes: Data cleaning: Remove abnormal data to ensure the quality of the analyzed data; Performance evaluation: According to the preset evaluation standard, the performance indicators of the hearing aid are evaluated, such as signal distortion, frequency response, etc.; Result visualization: Visualize the test results through charts and reports to help users intuitively understand the test results; Result discussion: Discuss the test results, analyze the performance of the hearing aid under electromagnetic interference, and point out possible improvement directions.

[0014] Advantages of the present application: The hearing aid anti-electromagnetic test method and system of the present application adopts modular design, and each component can be flexibly combined and expanded to adapt to changes in different test requirements. The traditional test system is often fixed and not easy to expand. The software system realizes the automation of the test process, reduces manual intervention, improves test efficiency and accuracy, and the system has real-time data processing capability, can analyze test data and give results in real time, while the traditional test system usually needs to be tested after the end of the test. Data analysis and result evaluation, the system integrates an intelligent diagnosis module that can monitor and diagnose abnormal conditions in the test process in real time and provide optimization suggestions, can simulate a variety of complex electromagnetic interference environments, is closer to actual use scenarios, automatically collects and analyzes data, quickly generates test reports, and improves test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application is further illustrated below in conjunction with the drawings and examples.

[0016] Figure 1 A schematic diagram of the overall flow structure of an electromagnetic test system for a hearing aid is provided. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in conjunction with specific embodiments.

[0018] As shown in Figure 1 The electromagnetic test system for a hearing aid includes a test system, which includes a hardware platform, a software platform and a data delivery end. The hardware platform includes a signal generator, an electromagnetic interference source and a data acquisition and processing device. The hardware platform is the physical basis of the test system, including test instruments, sensors, actuators, data acquisition cards, etc. The selection of hardware should be considered comprehensively according to factors such as test requirements, precision requirements, environmental adaptability, etc.

[0019] The software platform includes a data acquisition layer, a data processing layer, a business logic layer and a user interface layer. The software platform is responsible for the control of the test process, data acquisition, processing and analysis. It usually includes an operating system, test software and data processing software. The selection of software should consider its compatibility, ease of use and maintainability. The data acquisition layer is responsible for communication with hardware devices to ensure accurate data acquisition. Sensors, data acquisition cards and other devices are used to collect signals from the measured object in real time. During signal acquisition, the sampling rate should meet the Nyquist sampling theorem to avoid aliasing. The data processing layer analyzes the collected data in real time and extracts key information. For a multi-channel test system, the synchronous acquisition of signals in each channel is ensured to avoid time deviation. The collected signals are processed by filtering, amplification, integration, etc. to extract useful information. The business logic layer implements the core functions of the system, such as signal control and interference simulation. The signal transmitter and electromagnetic interference source in the hardware module are controlled by the test system to simulate different interference waves for the hearing aid.

[0020] The user interface layer provides an intuitive operation interface, allowing users to easily set up tests and view results.

[0021] The signal generator is responsible for generating various test signals required, has high stability and wide frequency range characteristics, can generate sine wave, square wave, sawtooth wave and other waveforms, to meet different testing needs, the signal generator should have good linearity and low distortion, to ensure the accuracy of the test signal.

[0022] The electromagnetic interference source can simulate various interference signals in the actual environment, and can generate wide-band interference electromagnetic interference source, including: wireless communication signal simulator and wide-band noise generator; The electromagnetic interference source can simulate a variety of complex electromagnetic environment, to provide a real environment for the anti-interference performance test of the hearing aid basis; The electromagnetic interference source is an important factor affecting the performance of electronic equipment, in the test system, the selection and simulation of electromagnetic interference source is a key step: Interference source selection: according to the characteristics of the test object and the test purpose, select the appropriate electromagnetic interference source, common interference sources include radio frequency interference, electrostatic discharge, radiation interference; Simulation method: use professional electromagnetic interference simulator to simulate various interference environment, the simulator should be able to generate different frequency, intensity and waveform interference signal, to simulate the electromagnetic interference in the actual use environment; Test environment control: ensure that the test environment meets the relevant standards, reduce the influence of external interference, the test environment should have shielding effectiveness, to prevent the interference of external interference signal.

[0023] The data acquisition and processing device collects high-precision data acquisition card, real-time capture of hearing aid response signal under electromagnetic interference, with enough sampling rate to meet the demand of high-speed data acquisition; Signal acquisition and processing method: signal acquisition and processing is the core part of the test system, its method directly affects the accuracy of test results: Signal acquisition: use sensors, data acquisition cards and other equipment to collect the signal of the measured object in real time, ensure that the sampling rate meets the Nyquist sampling theorem in the signal acquisition process, to avoid aliasing phenomenon; Synchronous acquisition: for multi-channel test system, ensure the synchronous acquisition of each channel signal, to avoid the deviation in time; Signal processing: filter, amplify, integrate and other processing to the collected signal, to extract useful information, Signal processing method includes: Digital filtering: use digital filter to remove noise and interference in the signal; Spectrum analysis: through fast Fourier transform, convert time domain signal to frequency domain signal, analyze the frequency components of the signal; Statistical analysis: statistical analysis of the signal, such as mean, variance, probability distribution, etc., to evaluate the stability of the signal.

[0024] Equipped with a high-performance computer system to process and analyze the collected data, it can quickly and accurately evaluate the performance indicators of hearing aids and generate detailed test reports through specialized software algorithms, including smart tree and neural network combination algorithms.

[0025] The data communication terminal is the bridge connecting hardware and software, ensuring that data is transmitted accurately within the system. The choice of communication protocol should guarantee the real-time performance and reliability of data transmission.

[0026] The data transmission end is responsible for recording the performance data of the hearing aid under electromagnetic interference in real time. This includes: sound output quality, frequency response, and distortion. The data collected by the data acquisition card is transmitted to the controller for analysis, and the controller will judge the performance of the hearing aid according to the preset evaluation criteria.

[0027] Design of hearing aid testing device Hearing aid testing devices are equipment specifically designed to test the performance of hearing aids. Their design needs to take into account the characteristics of hearing aids and the accuracy of the test. Test chamber: Design a test chamber that conforms to international standards. The chamber should be able to simulate the acoustic characteristics of the human ear to ensure the authenticity of the test results. The choice of chamber material should have good acoustic performance and stability. Speakers and microphones: Select appropriate speakers to generate test signals and microphones to receive the output signals from the hearing aids. These devices should have high fidelity and low distortion to ensure the accuracy of the test. Control Unit: Design a control unit to control the generation of test signals, the automation of the test process, and the real-time acquisition of data. The control unit should have good compatibility and scalability.

[0028] Design of an electromagnetic interference simulator Electromagnetic interference simulators are devices used to simulate various electromagnetic interference environments. They are designed to generate interference signals of different types and intensities. Signal generator: Select a high-precision signal generator that can generate electromagnetic interference signals of different frequencies and waveforms. The signal generator should have a wide frequency range and good frequency stability. Power Amplifier: Design a high-efficiency power amplifier to amplify the signal generated by the signal generator to meet the interference intensity required for testing; Radiation antenna: Designed to radiate interference signals into the test environment in a range of different frequencies; Control and monitoring unit: design a control and monitoring unit to control the emission of interference signals, monitor the strength and frequency of interference signals, and adjust in real time to meet testing needs.

[0029] Data acquisition and processing hardware design Data acquisition and processing hardware is the core part of the test system, its design determines the efficiency of data acquisition and the accuracy of signal processing: Data acquisition card: select a data acquisition card with high sampling rate and multiple analog / digital input channels for real-time acquisition of test signals, the data acquisition card should have good anti-interference performance and stability; Signal conditioning circuit: design a signal conditioning circuit to filter, amplify, and level convert the collected signals to meet the needs of subsequent signal processing; Storage device: configure a high-speed storage device to store a large amount of test data and ensure data security and integrity; Processor: select a high-performance processor to execute signal processing algorithms such as digital filtering, spectral analysis, etc., the processor should have good parallel processing capability and real-time performance.

[0030] Through the design of the above hardware system, an efficient, stable, and safe test platform can be built to provide reliable technical support for performance evaluation of hearing aids and other electronic devices.

[0031] Software system design The software system is the brain of the test system, it is responsible for the management of the test process, the processing and analysis of data, and the display and storage of test results; Test process and interface design: test process and interface design is the framework of the software system, it determines the convenience of user operation and the automation degree of the test process; Test process design: according to the test specification and test requirements, design the test process, the process should include test preparation, test execution, data acquisition, data processing, result analysis, etc. steps, when designing, the flexibility and scalability of the process should be considered to facilitate the addition or modification of future test projects; Automated testing: realize the automation of the test process, reduce manual intervention, and improve test efficiency and accuracy; Exception handling: design an exception handling mechanism in the test process to ensure that the system can respond correctly and guide users to troubleshoot when encountering errors or exceptions; Interface design: design an intuitive and friendly user interface to allow users to easily configure test parameters, start tests, view results, and make system settings, interface design should follow user experience principles, including clear menu layout, intuitive icons, and reasonable operation process.

[0032] Data Processing and Analysis Algorithms: The core function of the software system, directly related to the accuracy and reliability of test results; Data Preprocessing: Denoising, filtering, normalization, and other preprocessing of collected data to improve data quality; Digital Filtering: Using digital filtering algorithms to remove high-frequency noise in data; Signal Denoising: Applying signal denoising techniques such as wavelet transform to improve signal-to-noise ratio; Data Analysis: Applying various algorithms to analyze preprocessed data in depth to extract useful information; Feature Extraction: Extracting key features from data, such as mean, variance, frequency components, etc.; Model Establishment: Establishing mathematical models based on test data for predicting or evaluating device performance.

[0033] Result Display and Storage: The output part of the software system, responsible for displaying test results in a visual form to users and storing data for subsequent analysis; Result Display: Displaying processed and analyzed results in the form of charts, curves, etc., allowing users to customize display methods such as selecting different chart types and adjusting display ranges; Real-time Monitoring: Providing real-time data monitoring functions to allow users to view data changes in real time during testing; Historical Data Comparison: Allowing users to call historical data for comparative analysis to observe device performance trends; Data Storage: Designing efficient data storage mechanisms to store test data and analysis results in databases or file systems, ensuring data security and accessibility; Database Management: Using database management systems to organize, manage, and query test data, ensuring data consistency and integrity; Data Backup: Implementing data backup functions to prevent data loss or damage.

[0034] Through the above software system design, the test system will be able to efficiently perform test processes, accurately process and analyze data, and display test results in an intuitive manner, providing a comprehensive, reliable, and easy-to-use test platform for users.

[0035] Specific use: The establishment of a test environment is the premise of effective testing, which requires building a test platform in a controllable electromagnetic interference laboratory environment, ensuring that the laboratory is far from strong electromagnetic interference sources, using an electromagnetic shield room to simulate electromagnetic interference in the real environment, and configuring all hardware devices required for testing, including signal generators, electromagnetic interference sources, data acquisition cards, etc., and ensuring correct connection between them; Ensure that all test equipment has been sufficiently preheated before testing to ensure the accuracy of the test; according to the test requirements, set the frequency, amplitude and other parameters of the signal generator, and the interference type and intensity of the electromagnetic interference source; start the test system, apply electromagnetic interference to the hearing aid, and collect the response data of the hearing aid in real time; During the test, the system automatically records the data, including the output signal of the hearing aid and the intensity of the interference signal; In order to improve the reliability of the test results, each test step needs to be repeated several times, and the average value is calculated; After the test is completed, the test system transmits the collected data to the data processing software for analysis, removes abnormal data, and ensures the quality of the analyzed data; According to the preset evaluation standard, the performance indicators of the hearing aid are evaluated, such as signal distortion, frequency response, etc.; The test results are visualized through charts and reports to facilitate users to intuitively understand the test results; Discuss the test results, analyze the performance of the hearing aid under electromagnetic interference, and point out possible improvement directions.

[0036] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A hearing aid electromagnetic interference testing system, characterized in that, The system includes a testing system, which comprises a hardware platform, a software platform, and a data transmission terminal. The hardware platform includes a signal generator, an electromagnetic interference source, and data acquisition and processing equipment. The software platform includes a data acquisition layer, a data processing layer, a business logic layer, and a user interface layer; The data acquisition layer is responsible for communicating with hardware devices to ensure accurate data acquisition; it uses sensors, data acquisition cards and other devices to acquire signals of the object under test in real time. During signal acquisition, it should ensure that the sampling rate meets the Nyquist sampling theorem to avoid aliasing. The data processing layer performs real-time analysis on the collected data and extracts key information. For multi-channel testing systems, it ensures synchronous acquisition of signals from each channel to avoid time deviations and performs filtering, amplification, integration, and other processing on the collected signals to extract useful information. The business logic layer implements the core functions of the system, including signal control and interference simulation. Through the test system, the signal transmitter and electromagnetic interference source in the control hardware module work together with the business logic layer to simulate and test different interference waves generated by the hearing aid.

2. The electromagnetic interference testing system for hearing aids according to claim 1, characterized in that: The user interface layer provides an intuitive interface, enabling users to easily set up tests and view results.

3. The electromagnetic interference testing system for hearing aids according to claim 1, characterized in that: The signal generator is responsible for generating various required test signals. It has high stability and a wide frequency range, and can generate various waveforms such as sine waves, square waves, and sawtooth waves to meet different test requirements. The signal generator should have good linearity and low distortion to ensure the accuracy of the test signals.

4. The electromagnetic interference testing system for hearing aids according to claim 1, characterized in that: The electromagnetic interference source can simulate various interference signals in the actual environment and can generate wideband interference, including: wireless communication signal simulator and wideband noise generator; The electromagnetic interference source can simulate a variety of complex electromagnetic environments, providing a realistic environmental basis for testing the anti-interference performance of hearing aids.

5. The electromagnetic interference testing system for hearing aids according to claim 1, characterized in that: The data acquisition and processing equipment acquires high-precision data acquisition cards, captures the response signals of hearing aids under electromagnetic interference in real time, and has a sufficient sampling rate to meet the needs of high-speed data acquisition. Equipped with a high-performance computer system to process and analyze the collected data, it can quickly and accurately evaluate the performance indicators of hearing aids and generate detailed test reports through specialized software algorithms, including smart tree and neural network combination algorithms.

6. The electromagnetic interference testing system for hearing aids according to claim 1, characterized in that: The data communication terminal is the bridge connecting hardware and software, ensuring that data is transmitted accurately within the system. The choice of communication protocol should guarantee the real-time performance and reliability of data transmission.

7. The electromagnetic interference testing system for hearing aids according to claim 6, characterized in that: The data transmission end is responsible for recording the performance data of the hearing aid under electromagnetic interference in real time. This includes: sound output quality, frequency response, and distortion. The data collected by the data acquisition card is transmitted to the controller for analysis, and the controller will judge the performance of the hearing aid according to the preset evaluation criteria.

8. A method for testing the electromagnetic interference of a hearing aid, characterized in that: Includes the following steps: Step 1: Setting up the test environment is a prerequisite for effective testing. The test platform needs to be set up in a laboratory environment with controllable electromagnetic interference. Ensure that the laboratory is far away from strong electromagnetic interference sources. Use an electromagnetic shielding room to simulate electromagnetic interference in the real environment. All the hardware equipment required for testing also needs to be configured, including signal generators, electromagnetic interference sources, data acquisition cards, etc., and ensure that the connections between them are correct. Step 2: Preheating the equipment: Ensure that all testing equipment has been fully preheated before testing to guarantee the accuracy of the test; Set test parameters: According to the test requirements, set the frequency, amplitude and other parameters of the signal generator, as well as the type and intensity of electromagnetic interference. Start the test: Start the test system, apply electromagnetic interference to the hearing aid, and collect the hearing aid's response data in real time; Data recording: During the test, the system automatically records data, including the output signal of the hearing aid and the intensity of the interference signal; Test repetition: To improve the reliability of test results, each test step needs to be repeated multiple times and the average value calculated; Step 3: After the test is completed, the test system will transmit the collected data to the data processing software for analysis. The analysis process includes: Data cleaning: Remove outlier data to ensure the quality of the data being analyzed; Performance evaluation: The performance indicators of the hearing aid are evaluated according to the preset evaluation criteria, such as signal distortion and frequency response. Results visualization: Visualize test results through charts and reports to help users understand the results intuitively; Results Discussion: The test results are discussed, the performance of hearing aids under electromagnetic interference is analyzed, and possible directions for improvement are pointed out.

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