CN111083626B - Method, equipment and system for testing radio frequency interference resistance of microphone - Google Patents

Method, equipment and system for testing radio frequency interference resistance of microphone Download PDF

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Publication number
CN111083626B
CN111083626B CN201911294371.4A CN201911294371A CN111083626B CN 111083626 B CN111083626 B CN 111083626B CN 201911294371 A CN201911294371 A CN 201911294371A CN 111083626 B CN111083626 B CN 111083626B
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radio frequency
frequency signal
test
signal
microphone
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CN111083626A (en
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孙凌云
赵志勇
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Weifang Goertek Microelectronics Co Ltd
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Weifang Goertek Microelectronics Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/004—Monitoring arrangements; Testing arrangements for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The invention discloses a method, a device and a system for testing the anti-radio frequency interference performance of a microphone, wherein the method is implemented by a test management device, the test management device is respectively in communication connection with a radio frequency signal generation system and an audio analysis device, the radio frequency signal generation system comprises a signal generator, and the method comprises the following steps: providing a window for setting test parameters and a window for setting calibration information, wherein the test parameters comprise the frequency of a target radio frequency signal, and the calibration information comprises the size and the precision threshold of the target radio frequency signal; determining working parameters of the signal generator according to the calibration information and the test parameters, and configuring the signal generator according to the working parameters; calling a radio frequency signal generation system to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to a microphone to be detected; and providing the frequency of the target radio frequency signal to an audio analysis device, and calling the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked by the microphone.

Description

Method, equipment and system for testing radio frequency interference resistance of microphone
Technical Field
The invention relates to the technical field of microphone testing, in particular to a method, a device and a system for testing radio frequency interference resistance of a microphone.
Background
When testing the anti-radio frequency interference performance of the microphone, it is necessary to call an Audio Analyzer (AP), a signal generator, a radio frequency power amplifier, an attenuator, a power meter, and other devices to perform testing.
At present, each device is generally called and parameter configuration is carried out on each device in a manual mode, and the manual mode has the problems of complicated calling process, low efficiency and easy error when non-professional carries out parameter configuration.
In addition, the existing audio analysis instrument is adopted to carry out testing by self-contained software, test data needs to be manually exported, and when repeated testing is carried out under the same test condition, the previous data needs to be manually deleted, so that the test data is easy to be confused, the test result is easy to be influenced by testers, and the test accuracy is poor.
Disclosure of Invention
The invention aims to provide a novel technical scheme for testing the radio frequency interference resistance of a microphone.
According to a first aspect of the invention, a method for testing the radio frequency interference resistance of a microphone is provided; the method is implemented by a test management device which is respectively in communication connection with a radio frequency signal generation system and an audio analysis device, wherein the radio frequency signal generation system comprises a signal generator, and the method comprises the following steps:
providing a window for setting test parameters and a window for setting calibration information, wherein the test parameters comprise the frequency of a target radio frequency signal, and the calibration information comprises the size and the precision threshold of the target radio frequency signal;
determining working parameters of the signal generator according to the calibration information and the test parameters, and configuring the signal generator according to the working parameters;
calling the radio frequency signal generation system to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to a microphone to be tested;
and providing the frequency of the target radio frequency signal to an audio analysis device, and calling the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked by the microphone.
Optionally, the test management device is further connected to a power meter, where the power meter is configured to measure the power of the radio frequency signal emitted by the radio frequency signal generation system;
the determining the working parameters of the signal generator according to the calibration information and the test parameters comprises:
setting the frequency of a radio frequency signal transmitted by a signal generator according to the test parameters;
calling the radio frequency signal generation system to work so as to transmit radio frequency signals;
and adjusting the working parameters of the signal generator, reading the data of the power meter until the difference value between the reading of the power meter and the target radio frequency signal meets the precision threshold, and recording and storing the working parameters of the signal generator.
Optionally, the determining an operating parameter of the signal generator according to the calibration information and the test parameter includes:
setting the frequency of a radio frequency signal transmitted by a signal generator according to the test parameters;
calling the radio frequency signal generation system to work so as to transmit radio frequency signals;
searching a calibration parameter according to the size of the target radio frequency signal;
and determining the working parameters of the signal generator according to the size of the target radio frequency signal and the calibration parameters.
Optionally, the audio analysis apparatus is provided with a plurality of signal input channels, and the plurality of signal input channels are used for being connected with the microphone to be tested to form a plurality of test channels; the test parameters further include test channel information and a type of the microphone to be tested, and the method further includes:
and configuring the audio analysis device to be connected with the microphone to be tested according to the test channel information, and configuring the type of an input signal of the audio analysis device according to the type of the microphone to be tested.
Optionally, the radio frequency signal generating system further includes a plurality of radio frequency power amplifiers, the test parameter further includes a first stabilization time, and the invoking the radio frequency signal generating system to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to a microphone to be tested includes:
calling a radio frequency power amplifier to start working;
and when the working time of the radio frequency power amplifier reaches the first stable time, calling a signal generator to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to the microphone to be tested.
Optionally, the invoking the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked up by the microphone further includes a second settling time, including:
and when the time for the radio-frequency signal generating system to transmit the radio-frequency signals reaches a second stable time, calling the audio analysis device to generate an analysis result according to the target radio-frequency signals and the signals picked by the microphone.
Optionally, the method further comprises:
providing a window for setting device information for calling the radio frequency signal generating system, the audio analyzing device and the power meter;
the radio frequency signal generation system comprises a signal generator, a plurality of radio frequency power amplifiers and an attenuator, and the equipment information comprises port information of the signal generator, the plurality of radio frequency power amplifiers, the audio analysis device and the power meter.
According to a second aspect of the present invention, there is provided a test management device, which is communicatively connected to a radio frequency signal generation system and a radio frequency analysis apparatus, respectively, the radio frequency signal generation system includes a signal generator, the test management device includes a memory and a processor, the memory stores a computer program, and the computer program, when executed by the processor, implements a method for testing the anti-radio frequency interference performance of a microphone according to any one of the first aspect of the present invention.
According to a third aspect of the present invention, there is provided a test system comprising a test management apparatus, a radio frequency signal generation system and an audio analysis device as provided in the second aspect of the present invention, the test management apparatus being communicatively connected to the radio frequency signal generation system and the audio analysis device, respectively.
Optionally, the system further includes a power meter, the power meter is connected to the test management device, and the power meter is configured to measure the power of the radio frequency signal emitted by the radio frequency signal generation system, so that the test management device determines the operating parameter of the signal generator according to the calibration information and the test parameter.
According to the method for testing the anti-radio frequency interference performance of the microphone, a window for setting test parameters and a window for setting calibration information are provided, the test parameters comprise the frequency of a target radio frequency signal, the calibration information comprises the size and the precision threshold of the target radio frequency signal, working parameters of a signal generator are determined according to the calibration information and the test parameters, a radio frequency signal generating system is automatically called to transmit a radio frequency signal consistent with the target radio frequency signal to the microphone to be tested based on the working parameters, an audio analysis device is called to generate an analysis result according to the target radio frequency signal and a signal picked by the microphone, manual participation is avoided in the test process, the error rate of manual calibration can be reduced, and the test efficiency is further improved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a diagram illustrating a hardware configuration of a test system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for testing the anti-radio frequency interference performance of a microphone according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram showing a display interface of a test management apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic diagram showing a hardware configuration of a test management apparatus according to a second embodiment of the present invention;
fig. 5 shows a hardware configuration diagram of a test system according to a third embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
< hardware configuration >
As shown in fig. 1, a hardware configuration diagram of a test system 100 according to an embodiment of the present invention is provided.
In this embodiment, the test system 100 may be used to detect the anti-rf interference performance of the microphone. The test system 100 may include a test management apparatus 1000, a radio frequency signal generation system 2000, and an audio analysis device 3000, and the test management apparatus 1000 is connected to the radio frequency signal generation system 2000 and the audio analysis device 3000, respectively. The test management apparatus 1000 may be configured to control the rf signal generating system 2000 to transmit an rf signal to the microphone to be tested, and to control the audio analyzing device 3000 to analyze a signal picked up by the microphone to generate an analysis result.
The rf signal generating system 2000 includes a signal generator, a plurality of rf power amplifiers, and an attenuator. The radio frequency power amplifier may include a high frequency power amplifier and a low frequency power amplifier.
The test system 100 may further include a power meter 4000, where the power meter 4000 is connected to the test management device 1000, and the power meter 4000 is configured to measure the power of the rf signal emitted by the rf signal generating system 2000, so that the test management device 1000 can calibrate the rf signal generating system 2000.
In one example, the test management apparatus 1000 may be as shown in fig. 1, and include a processor 1100, a memory 1200, an interface device 1300, a communication device 1400, a display device 1500, an input device 1600, a speaker 1700, a microphone 1800, and the like.
The processor 1100 may be a central processing unit CPU, a microprocessor MCU, or the like. The memory 1200 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 1300 includes, for example, a USB interface, a headphone interface, and the like. The communication device 1400 may include a short-range communication device, such as any device that performs short-range wireless communication based on short-range wireless communication protocols such as the Hilink protocol, WiFi (IEEE 802.11 protocol), Mesh, bluetooth, ZigBee, Thread, Z-Wave, NFC, UWB, LiFi, etc., and the communication device 1400 may also include a long-range communication device, such as any device that performs WLAN, GPRS, 2G/3G/4G/5G long-range communication. The display device 1500 is, for example, a liquid crystal display panel, a touch panel, or the like. The input device 1600 may include, for example, a touch screen, a keyboard, a somatosensory input, and the like. A user can input/output voice information through the speaker 1700 and the microphone 1800.
Although a plurality of devices are shown in fig. 1 for the test management apparatus 1000, the present invention may relate to only some of the devices, for example, the test management apparatus 1000 relates to only the memory 1200 and the processor 1100.
In the above description, the skilled person can design the instructions according to the solutions provided in the present disclosure. How the instructions control the operation of the processor is well known in the art and will not be described in detail herein.
The test system shown in fig. 1 is merely illustrative and is in no way intended to limit the present disclosure, its application, or uses.
< first embodiment >
The embodiment provides a method for testing the radio frequency interference resistance of a microphone. The method is implemented by the test management device. The test management equipment is respectively in communication connection with the radio-frequency signal generation system and the audio analysis device, and the radio-frequency signal generation system comprises a signal generator.
As shown in fig. 2, the method for testing the anti-radio frequency interference performance of the microphone may include the following steps S2100 to S2400.
In step S2100, a window for setting test parameters and a window for setting calibration information are provided.
In this embodiment, the window for setting the test parameters may be used for the user to input the test parameters for testing the performance of the microphone against radio frequency interference. The test parameters may include other parameters such as the frequency of the target radio frequency signal.
In one example, the test parameter may include a frequency of the target radio frequency signal. The target radio frequency signal refers to a radio frequency signal for testing the anti-radio frequency interference performance of the microphone. The radio frequency interference resistance of the microphone is tested by transmitting radio frequency signals with different frequencies to the microphone to be tested. The frequency of the target radio frequency signal comprises a low-frequency scanning frequency point and a high-frequency scanning frequency point of the target radio frequency signal. For example, the low frequency scan frequency points of the target radio frequency signal may be 100Hz, 230.6Hz, 309.9Hz, 429Hz, 512.3Hz, 611.7Hz, 709.1Hz, 730.4Hz, 752.3Hz, 774.8Hz, 798.1Hz, 822Hz, and the high frequency scan frequency points may be 3000Hz, 3500Hz, 4000Hz, 4500Hz, 5000Hz, 5500Hz, 6000 Hz. The frequency of the target radio frequency signal can be set according to engineering experience or experimental simulation results.
In one example, the test parameters may also include test channel information and the type of microphone under test. The method for testing the anti-radio frequency interference performance of the microphone can further comprise the following steps:
and controlling the audio analysis device to be connected with the microphone to be tested according to the test channel information, and configuring the type of the input signal of the audio analysis device according to the type of the microphone to be tested.
In this example, the audio analysis apparatus is provided with a plurality of signal input channels, the plurality of signal input channels are used for connecting with the microphone to be tested to form a plurality of test channels, and the test channel information is port information of the channel connecting the microphone to be tested with the audio analysis apparatus. When the test management equipment is used for testing the microphone, the test channel of the audio analysis device can be selected according to the requirements of a user. The set test channel information should be consistent with the information of the test channel of the audio analysis device selected by the user.
The types of microphones to be tested include digital type microphones and analog type microphones. When the microphone to be tested is a digital microphone, the input signal of the audio analysis device is configured to be a digital signal. When the microphone to be tested is an analog microphone, the input signal of the audio analysis device is configured to be an analog signal.
According to the scheme of the example, by setting the test channel information and configuring the type of the input signal of the audio analysis device according to the type of the microphone to be tested, the correct acquisition of the test signal data of the audio analysis device can be ensured.
In one example, the test parameters further include a first settling time, the first settling time representing a time required for the radio frequency power amplifier to enter stable operation. The first stabilization time may be set according to engineering experience or experimental simulation results.
In one example, the test parameters further include a second settling time, the second settling time representing a time required for the radio frequency signal generated by the signal generator to reach the product end. The radio frequency signal generating system can send out stable signals after being stable for a period of time. The second stabilization time may be set according to engineering experience or experimental simulation results.
In this embodiment, the window for setting the calibration information may be used for a user to input calibration information for calibrating the signal generator.
The calibration information includes a size and a precision threshold of the target radio frequency signal. The size of the target radio frequency signal refers to the size of the radio frequency signal required when testing the anti-radio frequency interference performance of the microphone. In addition, the target radio frequency signals with different frequencies emitted to the microphones are consistent in magnitude when testing. The target radio frequency signal can be set according to engineering experience or experimental simulation results.
The precision threshold is used for measuring the deviation between the size of the radio-frequency signal output to the product end by the radio-frequency signal generation system and the size of the target radio-frequency signal, and can reflect whether the radio-frequency signal output to the product end by the radio-frequency signal generation system meets the requirement or not. The accuracy threshold may be set based on engineering experience or experimental simulation results.
The signal generator outputs radio frequency signals to the product end according to the set working parameters, and the radio frequency signals are attenuated to a certain degree in the transmission process. The signal generator may be calibrated to determine an operating parameter of the signal generator based on the magnitude of the target radio frequency signal and the accuracy threshold.
In a more specific example, it may be an option to pop up a window for setting calibration information through a display interface of the test management device.
For example, the software interface of the test management device includes a calibration option, clicks on the calibration option, and pops up a window for setting calibration information.
In an example, the method for testing the anti-radio frequency interference performance of the microphone may further include step S3100.
Step S3100, providing a window for setting device information for calling the radio frequency signal generation system, the audio analysis means, and the power meter.
In this example, the apparatus includes a signal generation system including a signal generator, a plurality of radio frequency power amplifiers, and an attenuator, an audio analysis device, and a power meter. The device information may be port information or serial port information of the signal generator, the plurality of radio frequency power amplifiers, the audio analyzing apparatus, and the power meter. According to the scheme of the above example, a window for setting the device information is provided, so that the test management device can call the signal generation system, the audio analysis device and the power meter according to the device information, and the relevant device can be automatically called according to the test requirement.
In an example, the method for testing the anti-radio frequency interference performance of the microphone may further include step S3200.
Step S3200, providing a window for setting basic parameters of the signal generator to control the signal generator to generate the radio frequency interference signal. The window for setting the basic parameters of the signal generator may include a window for setting a carrier signal frequency and an Amplitude Modulation (AM) Modulation depth of the signal generator.
In a more specific example, a window for setting device information and a window for setting basic parameters of the signal generator may pop up through an option of a display interface of the test management device.
For example, referring to fig. 3, fig. 3 is a schematic diagram of a display interface of a test management device, which includes a window for setting test parameters, a "device" option, a "signal generator" option, and a "calibration" option. The user can click the 'equipment' option in the display interface of the test management equipment to generate a window for setting equipment information so as to call the radio frequency signal generation system, the audio analysis device and the power meter. The user clicks on the "signal generator" option, generating a window for setting the basic parameters of the signal generator. Then, in a window for setting test parameters, a user can set the test channel information and the type of the microphone to be tested in a setting frame of the test channel information and the type of the microphone in sequence, insert a low-frequency scanning frequency point of a target radio-frequency signal in a low-frequency sweep table, insert a high-frequency scanning frequency point of the target radio-frequency signal in a high-frequency sweep table, set the stabilization time of a radio-frequency power amplifier in a setting frame of the first stabilization time, and set the time required for the radio-frequency signal generated by a signal generator to reach a product end in a setting frame of the second stabilization time. Thereafter, clicking on the "calibrate" option generates a window for setting calibration information. The display interface of the test management device also comprises a window for displaying the analysis result.
After providing the window for setting the test parameters and the window for setting the calibration information, entering:
step S2200, determining the working parameters of the signal generator according to the calibration information and the test parameters, and configuring the signal generator according to the working parameters.
The operating parameters of the signal generator include the frequency and magnitude of the radio frequency signal transmitted by the signal generator. The signal generator outputs radio frequency signals to the product end according to the set working parameters, the radio frequency signals are attenuated to a certain degree in the transmission process, and in order to ensure that the size of the radio frequency signals output to the product end by the signal generator is consistent with that of target radio frequency signals, the working parameters of the signal generator need to be determined according to calibration information and test parameters.
In a more specific example, the test management device is further coupled to a power meter for measuring the power of the radio frequency signal emitted by the radio frequency signal generating system. Determining operating parameters of the signal generator based on the calibration information and the test parameters may further comprise: steps S2210a-S2230 a.
Step S2210a, the frequency of the radio frequency signal emitted by the signal generator is set according to the test parameters.
The test parameters may include a frequency of the target radio frequency signal. The target radio frequency signal refers to a radio frequency signal for testing the anti-radio frequency interference performance of the microphone. The radio frequency interference resistance of the microphone is tested by transmitting radio frequency signals with different frequencies to the microphone to be tested. For example, the low frequency scan frequency points of the target radio frequency signal may be 100Hz, 230.6Hz, 309.9Hz, 429Hz, 512.3Hz, 611.7Hz, 709.1Hz, 730.4Hz, 752.3Hz, 774.8Hz, 798.1Hz, 822 Hz.
Step S2220a, the rf signal generating system is called to operate to transmit the rf signal.
The radio frequency signal generating system may include a signal generator, a plurality of radio frequency power amplifiers, and an attenuator. And the radio-frequency signal generated by the signal generator is output to a product end after being processed by the radio-frequency power amplifier and the attenuator in sequence.
The radio frequency power amplifier may include a high frequency power amplifier and a low frequency power amplifier. When the frequency of the target radio frequency signal is in the low-frequency scanning range, calling a low-frequency power amplifier; and when the frequency of the target radio frequency signal is in the range of high frequency scanning, calling a high frequency power amplifier.
And step S2230a, adjusting the working parameters of the signal generator, reading the data of the power meter until the difference between the reading of the power meter and the target radio frequency signal meets the precision threshold, and recording and storing the working parameters of the signal generator.
The power meter is used for measuring the power of the radio-frequency signal emitted by the radio-frequency signal generating system, namely the reading of the power meter can represent the size of the signal when the radio-frequency signal emitted by the radio-frequency signal generating system reaches the product end. The precision threshold is used for measuring the deviation between the size of the radio-frequency signal output to the product end by the radio-frequency signal generation system and the size of the target radio-frequency signal, and can reflect whether the radio-frequency signal output to the product end by the radio-frequency signal generation system meets the requirement or not. The accuracy threshold may be set based on engineering experience or experimental simulation results.
In the example, according to the test parameters, the frequency of the target radio frequency signal is selected, the frequency of the radio frequency signal emitted by the signal generator is set according to the frequency of the target radio frequency signal, the working parameters of the signal generator are adjusted to change the size of the radio frequency signal generated by the signal generator, the radio frequency signal generated by the signal generator sequentially passes through the power amplifier and the attenuator and then reaches the power meter, the data of the power meter is read until the difference value between the reading of the power meter and the size of the target radio frequency signal meets the precision threshold value, namely the radio frequency signal output to a product end by the radio frequency signal generation system meets the requirement, the adjustment is stopped, the size of the radio frequency signal generated by the signal generator is kept unchanged, the working parameters of the signal generator are recorded and stored, and at the moment, the calibration of the size of the target radio frequency signal with the frequency output by the signal generator is completed. And then, selecting the frequency of the next target radio frequency signal, calibrating the size of the target radio frequency signal of the next frequency output by the signal generator, and sequentially completing the calibration of the size of the target radio frequency signal of each frequency in the test parameters.
In addition, in the test process, the power meter can also monitor the size of the signal transmitted by the radio frequency signal generation system, so that the test accuracy is provided.
According to the scheme of the example, the working parameters of the signal generator are determined according to the calibration information and the test parameters, so that the size of the radio-frequency signal output to the microphone by the radio-frequency signal generation system can be ensured to be consistent with that of the target radio-frequency signal, and the accuracy of the test result is improved. In addition, this embodiment can be according to the calibration information and the test parameter automatic call power meter of setting and calibrate signal generator, avoids artifical the participation in at the calibration process, can reduce the error rate of artifical calibration to further improve efficiency of software testing.
In another more specific example, determining the operating parameters of the signal generator based on the calibration information and the test parameters may further comprise: steps S2210b-S2240 b.
Step S2210b, the frequency of the radio frequency signal emitted by the signal generator is set according to the test parameters.
Step S2220b, the rf signal generating system is called to operate to transmit the rf signal.
In step S2230b, a calibration parameter is found according to the magnitude of the target rf signal.
The difference between the set radio frequency signal and the reading of the power meter can reflect the deviation between the actual radio frequency signal output to the product end by the radio frequency signal generation system and the set radio frequency signal. And calculating the difference value between the set radio frequency signal and the reading of the power meter, compensating the radio frequency signal transmitted by the radio frequency signal generation system according to the difference value to obtain a final radio frequency signal value, recording the final radio frequency signal value as a calibration parameter corresponding to the radio frequency signal, and storing the calibration parameter corresponding to each radio frequency signal. And finding out a calibration parameter corresponding to the target radio frequency signal according to the size of the target radio frequency signal.
Step 2240b, determining the operating parameters of the signal generator according to the magnitude of the target radio frequency signal and the calibration parameters.
According to the scheme of the example, the calibration parameters can be searched according to the size of the target radio frequency signal, and the working parameters of the signal generator do not need to be adjusted repeatedly to calibrate the signal generator in the test process, so that the calibration efficiency can be improved. In addition, this embodiment can be according to the calibration information and the test parameter automatic call power meter of setting and calibrate signal generator, avoids artifical the participation in at the calibration process, can reduce the error rate of artifical calibration to further improve efficiency of software testing.
In one example, the calibration information may also include a maximum output value of the signal generator.
The maximum output value of the signal generator can be set according to engineering experience or experimental simulation results. In the calibration process of the signal generator, if the magnitude of the target radio frequency signal exceeds the maximum output value of the signal generator, the maximum output value of the signal generator needs to be adjusted to ensure the calibration of the signal generator.
And adjusting the working parameters of the signal generator to change the size of the radio frequency signal generated by the signal generator until the difference between the reading of the power meter and the size of the target radio frequency signal meets the precision threshold, stopping adjustment, and recording and storing the working parameters of the signal generator. According to the scheme of the example, the problem that the signal generator is damaged due to the fact that the set radio frequency signal is too large in the process of adjusting the size of the radio frequency signal generated by the signal generator can be solved by setting the maximum output value of the signal generator.
After configuring the signal generator according to the working parameters, entering:
step S2300, invoking the radio frequency signal generating system to work to transmit a radio frequency signal consistent with the target radio frequency signal to the microphone to be tested.
The radio frequency signal generating system may include a signal generator, a plurality of radio frequency power amplifiers, and an attenuator. And the radio-frequency signal generated by the signal generator is output to a product end after being processed by the radio-frequency power amplifier and the attenuator in sequence. The radio frequency power amplifier may include a high frequency power amplifier and a low frequency power amplifier. When the frequency of the target radio frequency signal is in the low-frequency scanning range, calling a low-frequency power amplifier; and controlling the signal generating system to work so as to transmit the target radio frequency signal to the microphone to be tested. And when the frequency of the target radio-frequency signal is in the high-frequency scanning range, calling a high-frequency power amplifier, and controlling a signal generation system to work so as to transmit the target radio-frequency signal to the microphone to be detected.
In a more specific example, the test parameters further include a first settling time, and the invoking the rf signal generating system operates to transmit an rf signal consistent with the target rf signal to the microphone under test may further include: steps S2310-S2320.
In step S2310, the rf power amplifier is called to start working.
Step S2320, when the working time of the radio frequency power amplifier reaches the first stable time, the signal generator is called to work so as to transmit a radio frequency signal consistent with the target radio frequency signal to the microphone to be tested.
In this example, the first settling time represents the time required for the rf power amplifier to enter stable operation. The first stabilization time may be set according to engineering experience or experimental simulation results. The radio frequency power amplifier starts to work, when the working time of the radio frequency power amplifier reaches a first stable time, the amplified signal output by the radio frequency power amplifier reaches a stable state, and at the moment, the signal generator is called to work, so that the stability of the output signal of the radio frequency signal generation system can be ensured, the influence of the radio frequency power amplifier on the signal is reduced, and the accuracy of a test result is improved.
After the radio frequency signal generation system is called to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to the microphone to be tested, the following steps are carried out:
step S2400, providing the frequency of the target radio frequency signal to an audio analysis device, and invoking the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked up by the microphone.
The microphone to be tested receives the target radio frequency signal transmitted by the radio frequency signal generating system, and the audio analysis device analyzes the electric signal collected by the microphone to be tested to generate an analysis result. The analysis results may be graphs, curves, etc. For example, the analysis result is a relationship curve between the frequency of the target audio signal and the amplitude of the signal received by the microphone, and the variation of the amplitude of the signal received by the microphone to be tested under the target radio frequency signals with different frequencies can be seen according to the analysis result, and whether the radio frequency interference resistance of the microphone to be tested is qualified can be determined according to the amplitude of the signal received by the microphone. Referring to fig. 3, the analysis result is displayed on a display interface of the test management apparatus.
According to the scheme of the example, the audio analysis device is called to generate an analysis result according to the target radio frequency signal and the signal picked up by the microphone, and the analysis result is stored, so that an engineer can conveniently call and check the analysis result.
In a more specific example, the invoking the audio analysis device to generate the analysis result according to the target radio frequency signal and the signal picked up by the microphone further includes a second settling time, and may further include:
and when the time for the radio-frequency signal generating system to transmit the radio-frequency signal reaches a second stable time, calling the audio analysis device to generate an analysis result according to the target radio-frequency signal and the signal picked by the microphone.
In this example, the second settling time represents the time required for the rf signal generated by the signal generator to reach the product end. The radio frequency signal generating system can send out stable signals after being stable for a period of time. The second stabilization time may be set according to engineering experience or experimental simulation results. By setting the second stabilization time, the time for the audio analysis device to acquire the signal picked up by the microphone can be controlled, that is, after the signal generator generates the radio frequency signal and when the equipment stabilization time is reached, the audio analysis device is controlled to acquire the audio signal of the microphone to be detected.
According to the scheme of the example, the second stable time is set, so that the accuracy of the signals picked up by the microphone and collected by the audio analysis device can be ensured, the signals picked up by the microphone before the target radio-frequency signals are picked up by the microphone by the audio analysis device are prevented from being collected, the influence of equipment on the signals is reduced, and the accuracy of the test result is improved.
According to the method for testing the anti-radio frequency interference performance of the microphone, provided by the embodiment of the invention, the test parameters comprise the frequency of the target radio frequency signal and the calibration information comprises the size and the precision threshold of the target radio frequency signal, the working parameters of the signal generator are determined according to the calibration information and the test parameters, the radio frequency signal generating system is automatically called to transmit the radio frequency signal consistent with the target radio frequency signal to the microphone to be tested based on the working parameters, and the audio analysis device is called to generate the analysis result according to the target radio frequency signal and the signal picked by the microphone, so that the artificial participation is avoided in the test process, the error rate of the artificial calibration can be reduced, and the test efficiency is further improved.
< second embodiment >
In the present embodiment, a test management device 300 is provided, and the test management device 300 may be the test management device 1000 shown in fig. 1, and as shown in fig. 4, the test management device 300 is respectively connected to the radio frequency signal generation system and the audio analysis apparatus in a communication manner. The test management device 300 is also connected to a power meter.
The test management device 300 includes a processor 310 and a memory 320.
A memory 3200, which may be used to store executable instructions;
the processor 3100 may be configured to execute the method for testing the anti-radio frequency interference performance of the microphone according to the control of the executable instructions.
< third embodiment >
In this embodiment, a test system 400 is provided, where the test system 400 may be the test system 100 shown in fig. 1, and as shown in fig. 5, the test system 400 may include a test management device 410, a radio frequency signal generation system 420, and an audio analysis apparatus 430, where the test management device 410 is communicatively connected to the radio frequency signal generation system 420 and the audio analysis apparatus 430, respectively.
The test management device 410 may be the test management device 1000 shown in fig. 1, and the test management device 410 may also be the test management device 300 shown in fig. 4.
As shown in fig. 3, the display interface of the test management device 300 may include a window for setting test parameters, a "device" option, a "signal generator" option, a "calibration" option, and a window for displaying analysis results.
The rf signal generating system 420 may include a signal generator 421, a plurality of rf power amplifiers 422, and an attenuator 423. The radio frequency power amplifier may include a high frequency power amplifier and a low frequency power amplifier.
The test system 400 further includes a power meter 440, the power meter 440 is connected to the test management device 410, and the power meter 440 is configured to measure the power of the rf signal transmitted by the rf signal generating system 420, so that the test management device 410 can determine the operating parameter of the signal generator 421 according to the calibration information and the test parameter.
In addition, during the test process, the power meter 440 can also monitor the magnitude of the signal transmitted by the rf signal generating system 420, so as to provide the accuracy of the test.
The test management device and the test system provided in the embodiment have been described above with reference to the drawings, and may be configured to determine the operating parameters of the signal generator according to the calibration information and the test parameters by providing a window for setting test parameters and a window for setting calibration information, where the test parameters include the frequency of the target radio frequency signal, and the calibration information includes the size and the accuracy threshold of the target radio frequency signal, automatically invoke the radio frequency signal generation system to transmit a radio frequency signal consistent with the target radio frequency signal to the microphone to be tested based on the operating parameters, and invoke the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked up by the microphone, so as to avoid human involvement in the test process, reduce the error rate of manual calibration, and further improve the test efficiency.
The above embodiments mainly focus on differences from other embodiments, but it should be clear to those skilled in the art that the above embodiments can be used alone or in combination with each other as needed.
The embodiments in the present disclosure are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments, but it should be clear to those skilled in the art that the embodiments described above can be used alone or in combination with each other as needed. In addition, for the device embodiment, since it corresponds to the method embodiment, the description is relatively simple, and for relevant points, refer to the description of the corresponding parts of the method embodiment. The system embodiments described above are merely illustrative, in that modules illustrated as separate components may or may not be physically separate.
The present invention may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for causing a processor to implement various aspects of the present invention.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.

Claims (10)

1. A method for testing the anti-radio frequency interference performance of a microphone is implemented by a test management device which is respectively in communication connection with a radio frequency signal generation system and an audio analysis device, wherein the radio frequency signal generation system comprises a signal generator, and the method comprises the following steps:
providing a window for setting test parameters and a window for setting calibration information, wherein the test parameters comprise the frequency of a target radio frequency signal, and the calibration information comprises the size and the precision threshold of the target radio frequency signal;
determining working parameters of the signal generator according to the calibration information and the test parameters, and configuring the signal generator according to the working parameters;
calling the radio frequency signal generation system to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to a microphone to be tested;
and providing the frequency of the target radio frequency signal to an audio analysis device, and calling the audio analysis device to generate an analysis result according to the target radio frequency signal and the signal picked by the microphone.
2. The method of claim 1, the test management device further connected to a power meter for measuring the power of the radio frequency signals emitted by the radio frequency signal generating system;
the determining the working parameters of the signal generator according to the calibration information and the test parameters comprises:
setting the frequency of a radio frequency signal transmitted by a signal generator according to the test parameters;
calling the radio frequency signal generation system to work so as to transmit radio frequency signals;
and adjusting the working parameters of the signal generator, reading the data of the power meter until the difference value between the reading of the power meter and the target radio frequency signal meets the precision threshold, and recording and storing the working parameters of the signal generator.
3. The method of claim 1, said determining an operating parameter of a signal generator from said calibration information and said test parameter, comprising:
setting the frequency of a radio frequency signal transmitted by a signal generator according to the test parameters;
calling the radio frequency signal generation system to work so as to transmit radio frequency signals;
searching a calibration parameter according to the size of the target radio frequency signal;
and determining the working parameters of the signal generator according to the size of the target radio frequency signal and the calibration parameters.
4. The method of claim 1, the audio analysis device providing a plurality of signal input channels for connection with the microphone under test to form a plurality of test channels; the test parameters further include test channel information and a type of the microphone to be tested, and the method further includes:
and configuring the audio analysis device to be connected with the microphone to be tested according to the test channel information, and configuring the type of an input signal of the audio analysis device according to the type of the microphone to be tested.
5. The method of claim 1, the radio frequency signal generation system further comprising a plurality of radio frequency power amplifiers, the test parameters further comprising a first settling time, the invoking the radio frequency signal generation system to operate to emit a radio frequency signal consistent with a target radio frequency signal to a microphone under test comprising:
calling a radio frequency power amplifier to start working;
and when the working time of the radio frequency power amplifier reaches the first stable time, calling a signal generator to work so as to transmit a radio frequency signal consistent with a target radio frequency signal to the microphone to be tested.
6. The method of claim 1, the test parameters further comprising a second settling time, the invoking the audio analysis device to generate analysis results from the target radio frequency signal and the microphone picked-up signal comprising:
and when the time for the radio-frequency signal generating system to transmit the radio-frequency signals reaches a second stable time, calling the audio analysis device to generate an analysis result according to the target radio-frequency signals and the signals picked by the microphone.
7. The method of claim 1, further comprising:
providing a window for setting device information for calling the radio frequency signal generating system, the audio analyzing device and the power meter;
the radio frequency signal generation system comprises a signal generator, a plurality of radio frequency power amplifiers and an attenuator, and the equipment information comprises port information of the signal generator, the plurality of radio frequency power amplifiers, the audio analysis device and the power meter.
8. A test management device, the test management device being communicatively connected with a radio frequency signal generation system and an audio analysis apparatus, respectively, the radio frequency signal generation system comprising a signal generator, the test management device comprising a memory and a processor, the memory storing a computer program, the computer program, when executed by the processor, implementing a method of testing an anti-radio frequency interference performance of a microphone according to any one of claims 1-7.
9. A test system comprising a test management apparatus, a radio frequency signal generation system and an audio analysis device as claimed in claim 8, the test management apparatus being communicatively connected to the radio frequency signal generation system and the audio analysis device, respectively.
10. The system of claim 9, further comprising a power meter coupled to the test management device, the power meter configured to measure power of the rf signal emitted by the rf signal generating system for the test management device to determine operating parameters of the signal generator based on the calibration information and the test parameters.
CN201911294371.4A 2019-12-16 2019-12-16 Method, equipment and system for testing radio frequency interference resistance of microphone Active CN111083626B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442699A (en) * 2008-12-30 2009-05-27 明展生医科技股份有限公司 Method for adjusting parameter of sound playing device
CN102333253A (en) * 2011-07-26 2012-01-25 歌尔声学股份有限公司 Microphone and test method thereof
CN108243382A (en) * 2016-12-23 2018-07-03 裕隆汽车制造股份有限公司 Abnormal sound examines auxiliary system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442699A (en) * 2008-12-30 2009-05-27 明展生医科技股份有限公司 Method for adjusting parameter of sound playing device
CN102333253A (en) * 2011-07-26 2012-01-25 歌尔声学股份有限公司 Microphone and test method thereof
CN108243382A (en) * 2016-12-23 2018-07-03 裕隆汽车制造股份有限公司 Abnormal sound examines auxiliary system

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