WO2019104480A1

WO2019104480A1 - Audio pin testing method and testing device for communication module

Info

Publication number: WO2019104480A1
Application number: PCT/CN2017/113380
Authority: WO
Inventors: 黄国福
Original assignee: 福建联迪商用设备有限公司
Priority date: 2017-11-28
Filing date: 2017-11-28
Publication date: 2019-06-06
Also published as: CN108064347A

Abstract

An audio pin testing method and testing device for a communication module. The method comprises: transmitting a pre-set audio signal from an audio output pin to be tested of a communication module to an MIC pin of the communication module; acquiring an audio signal received by the MIC pin; comparing the pre-set audio signal with the audio signal received by the MIC pin; and determining whether the audio output pin to be tested is normal according to the result of the comparison. By means of outputting the audio signal from the audio output pin of the communication module to the MIC pin of the communication module, and comparing the audio signal with the signal received by the MIC pin, it is determined whether the audio output pin is normal. An audio output pin is detected by means of an MIC pin, and whether a function of the audio output pin is normal is automatically determined, so that the test efficiency is high, and the problem of manual misjudgment does not occur.

Description

\¥0 2019/104480 卩(:17 \2017/113380

1

Title of Invention: Audio Pin Test Method and Test Device for Communication Module

[0001] The present invention relates to the field of testing technologies for communication modules, and in particular, to an audio pin testing method and a testing device for a communication module.

Background technique

[0002] The production test of the communication module needs to test each pin of the module to determine whether the pin is working properly. The pin test includes testing of the module's audio pins, including the speaker pins, the headphone pins, and the earpiece pins. The original solution is to connect the audio pin of the module to the speaker, earphone or earpiece through the production test tool, and check whether the audio pin of the module is functioning properly by letting the sound of the speaker, earphone or earpiece. However, this kind of scheme requires the human ear to judge, the test efficiency is low, and the manual judgment is prone to misjudgment.

technical problem

The technical problem to be solved by the present invention is to provide an audio pin test method and a test device for a communication module, which can automatically determine whether the audio pin of the module is normal.

Problem solution

Technical solution

[0004] In order to solve the above technical problem, the technical solution adopted by the present invention is:

[0005] A method for testing an audio pin of a communication module, comprising:

[0006] transmitting a preset audio signal from the audio output pin of the communication module to be tested to the communication module

MIC pin;

[0007] Acquiring MI ( : audio signal received by the pin;

Comparing the preset audio signal and the audio signal received by the MIC pin;

[0009] determining, according to the result of the comparison, whether the audio output pin to be tested is normal.

[0010] Another technical solution provided by the present invention is:

[0011] An audio pin testing device for a communication module includes a signal input module, a signal transmission module, and a processor, wherein the signal input module is connected to an audio output pin of the communication module, and the signal transmission module is \¥0 2019/104480 卩(:17 \2017/113380

The input terminal of the signal transmission module is connected to the MIC pin of the communication module, and the signal input module is configured to transmit a preset audio signal to the audio output pin, the processing The program stores a program, and the processor is configured to run the program to perform the following steps:

[0012] acquiring an audio signal received by the MIC pin;

[0013] comparing the preset audio signal with an audio signal received by the MIC pin;

[0014] determining whether the audio output pin is normal according to the result of the comparison.

Advantageous effects of the invention

Beneficial effect

[0015] The beneficial effects of the present invention are: determining the audio signal by outputting the audio signal from the audio output pin of the communication module to the MIC pin of the communication module, and then comparing the signal received by the audio signal with the MIC pin. Is the output pin normal? The invention detects the audio output pin through the MIC pin, and automatically determines whether the function of the audio output pin is normal, the test efficiency is high, and there is no problem of manual misjudgment. Brief description of the drawing

DRAWINGS

1 is a flowchart of a method for testing an audio pin of a communication module according to an embodiment of the present invention;

2 is a flowchart of an audio pin testing device of a communication module according to Embodiment 1 of the present invention;

3 is a flowchart of a method for testing an audio pin of a communication module according to Embodiment 1 of the present invention.

[0019] Description of the label:

[0020] 1, the communication module; 11, the speaker pin; 12, the earpiece pin; 13, the earphone pin; 14, MIC pin; 2, the signal input module; 3, the signal transmission module; 31, the gain adjustment circuit; 32. Switching switch; 4. Processor.

Invention embodiment

Detailed ways

[0021] The most critical idea of the present invention is: outputting an audio signal from an audio output pin of an audio module to a MIC pin, and automatically determining the function of the audio output pin by comparing the audio signal with a signal received by the MIC pin. Is it normal?

[0022] Referring to FIG. 1, the present invention provides: \¥0 2019/104480 卩(:17 \2017/113380

3

[0023] A method for testing an audio pin of a communication module, comprising:

[0024] transmitting a preset audio signal from the audio output pin of the communication module to be tested to the communication module

MIC pin;

[0025] Acquiring MI ( : audio signal received by the pin;

Comparing the preset audio signal and the audio signal received by the MIC pin;

[0027] determining, according to the result of the comparison, whether the audio output pin to be tested is normal.

[0028] As can be seen from the above description, the audio pin test method of the communication module of the present invention has the beneficial effects of: feeding back the output signal of the audio output pin of the communication module to the MIC pin of the audio module, through the MIC pin. To detect whether the function of the audio output pin is normal, the whole test process is automated, the test efficiency is high, and there is no problem of manual misjudgment.

[0029] Further, the “comparing the preset audio signal and the audio signal received by the MIC pin” includes: [0030] parsing the preset audio signal to obtain a first audio waveform;

[0031] parsing the audio signal received by the MIC pin to obtain a second audio waveform;

Comparing the amplitude of the first audio waveform with the amplitude of the second audio waveform;

[0033] comparing the frequency of the first audio waveform with the frequency of the second audio waveform.

[0034] It can be seen from the above description that the corresponding waveform is obtained by parsing the preset audio signal and the audio signal received by the MIC pin, and comparing the amplitude and frequency of the two waveforms to detect the function of the audio output pin. .

[0035] Further, the determining whether the audio output pin is normal according to the result of the comparison includes:

[0036] If the frequency of the first audio waveform and the frequency variation of the second audio waveform are identical, and the amplitude of the first audio waveform and the amplitude of the second audio waveform are the same, it is determined that the audio output pin to be tested is normal.

[0037] As can be seen from the above description, in general, if the function of the audio output pin is normal, the amplitude and frequency of the input and output of the audio output pin are substantially the same, so whether the audio output pin is known by the above judgment manner normal.

[0038] Further, the “transmitting the preset audio signal from the audio output pin of the communication module to be tested to the MIC pin of the communication module” includes:

[0039] outputting a preset audio signal from an audio output pin of the communication module to be tested;

[0040] performing gain amplification or gain attenuation on the signal output from the audio output pin to be tested to the communication module \¥0 2019/104480 卩(:17 \2017/113380

4 within the rated input range of the MIC pin;

[0041] The signal after gain amplification or gain attenuation is input to the MIC pin.

[0042] As can be seen from the above description, due to the signal output by the audio output pin, the power or voltage characteristic value may not meet the working range of the MIC pin. Therefore, the signal output from the audio output pin is first adjusted and then input. The value of the MIC pin ensures that the MIC pin works properly, which improves the accuracy of the test.

[0043] Further, the gain amplification or gain attenuation is specifically voltage gain amplification or voltage gain attenuation.

[0044] As can be seen from the above description, the present invention preferably performs voltage gain adjustment on the signal output from the audio output pin. Of course, in addition to the voltage gain adjustment, other gain adjustment modes may be employed.

[0045] Further, the determining whether the audio output pin is normal according to the result of the comparison includes:

[0046] if the frequency of the first audio waveform and the frequency variation of the second audio waveform are consistent, and the product of the amplitude of the first audio waveform multiplied by the multiple of the gain amplification or gain attenuation is the same as the amplitude of the second audio waveform, Then, it is determined that the audio output pin to be tested is normal.

[0047] As can be seen from the above description, after the gain adjustment of the audio waveform outputted by the audio output pin, if the waveform amplitude of the signal received by the MIC pin is multiplied by the corresponding gain multiple, the value of the preset audio waveform is If the waveform amplitude is the same, the function of the audio output pin is normal.

[0048] Further, the communication module includes two or more audio output pins, and the “preceding the preset audio signal from the audio output pin of the communication module to be tested to the MIC pin of the communication module. "Before also included:

[0049] An audio output pin is selected from two or more of the audio output pins of the communication module as an audio output pin to be tested.

[0050] As can be seen from the above description, a general communication module includes a plurality of audio output pins such as a speaker pin, an earpiece pin, and a headphone pin. Therefore, when testing an audio output pin, select the audio output pin. The audio output pin will preset the audio signal to the MIC pin.

[0051] Another technical solution of the present invention is:

[0052] An audio pin testing device of a communication module, comprising a signal input module 2, a signal transmission module 3 and a processor 4, the signal input module 2 is connected to an audio output pin of the communication module 1, the signal transmission module The input end of the 3 is connected to the audio output pin, and the output end of the signal transmission module 3 is connected to the MI of the communication module 1 (the pin 14 is used to transmit the preset audio signal to the audio) Output pin \¥0 2019/104480 卩(:17 \2017/113380

5

The processor 4 stores a program, and the processor 4 is configured to run the program to perform the following steps: [0053] acquiring an audio signal received by the MIC pin;

Comparing the preset audio signal and the audio signal received by the MIC pin;

[0055] determining whether the audio output pin is normal according to the result of the comparison.

[0056] It can be seen from the above description that the audio pin test device of the communication module of the present invention has the beneficial effects that: the signal outputted by the audio output pin of the module is fed back to the MIC pin through the audio output module, and then automatically determined by the processor. Whether the function of the audio output pin is normal, the test efficiency is high, and there is no problem of manual misjudgment.

[0057] Further, the “comparing the preset audio signal and the audio signal received by the MIC pin” includes: parsing the preset audio signal to obtain a first audio waveform;

[0059] parsing the audio signal received by the MIC pin to obtain a second audio waveform;

[0061] Comparing the frequency of the first audio waveform with the frequency of the second audio waveform.

[0062] Further, the determining whether the audio output pin is normal according to the result of the comparison includes:

[0063] If the frequency of the first audio waveform and the frequency variation of the second audio waveform are identical, and the amplitude of the first audio waveform and the amplitude of the second audio waveform are the same, it is determined that the audio output pin is normal.

[0064] Further, the signal transmission module 3 includes a gain adjustment circuit 31. The input end of the gain adjustment circuit 31 is connected to the audio output pin, and the output end of the gain adjustment circuit 31 is connected to the MIC pin 14.

[0065] As can be seen from the above description, the gain adjustment circuit is configured to perform gain adjustment on the signal output from the audio output pin, and then input the value MIC pin to ensure normal operation of the MIC pin, thereby improving the accuracy of the test.

[0066] Further, the gain adjustment circuit 31 is a voltage gain adjustment circuit.

[0067] Further, the determining whether the audio output pin is normal according to the result of the comparison includes:

[0068] if the frequency of the first audio waveform and the frequency variation of the second audio waveform are identical, and the product of the amplitude of the first audio waveform multiplied by the amplification factor of the gain adjustment circuit is the same as the amplitude of the second audio waveform, It is determined that the audio output pin is normal.

[0069] Further, the number of the audio output pins is two or more, and the signal transmission module 3 includes two or more gain adjustment circuits 31 and a switch 32, and two or more of the audio output pins are respectively Corresponding to the input terminals of two or more gain adjustment circuits 31, the transmission of two or more gain adjustment circuits 31 \¥0 2019/104480 卩(:17 \2017/113380

The output terminals of the switch 32 are respectively connected to the output terminals of the switch 32, and the output terminals of the switch 32 are connected to the MIC pins.

14.

[0070] Further, the number of the audio output pins is two or more, the signal transmission module 3 includes a switch 32 and a gain adjustment circuit 31, and the two or more audio output pins are connected to the switch 32. The output end of the changeover switch 32 is connected to the gain adjustment circuit 31, and the output end of the gain adjustment circuit 31 is connected to the MIC pin 14.

[0071] As can be seen from the above description, the switching test of the audio output pin is realized by setting the switch.

Referring to FIG. 2, Embodiment 1 of the present invention is:

[0073] An audio pin testing device of a communication module includes a signal input module 2, a signal transmission module 3, and a processor 4. The signal input module 2 is connected to an audio output pin of the communication module 1, and the signal transmission module 3 includes a gain adjustment circuit 31 and a switch 32. The gain adjustment circuit 31 is a voltage gain adjustment circuit. The number of the gain adjustment circuits 31 is three. The audio output pin includes a speaker pin 11 and an earpiece pin. 12 and the earphone pin 13, three input terminals of the gain adjustment circuit 31 are respectively connected with the speaker pin 11, the earphone pin 12 and the earphone pin 13, three of the gain adjustment circuits 31 The outputs are connected to the outputs of the processor 4, respectively.

[0074] The signal input module 2 is configured to transmit a preset audio signal to the audio output pin, and the switch switch 32 is configured to switch the output pin to be tested to communicate with the MIC pin 14. For example, when testing the speaker pin 11, the MIC pin 14 is switched to the channel output from the speaker pin 11, and when the earpiece pin 12 is tested, the MIC pin 14 is switched to the channel output from the earpiece pin 12. When the headphone pin 13 is tested, the MIC pin 14 is switched to the channel output from the headphone pin 13. The preset audio signal is output from the audio output pin to be tested to the MIC pin 14.

[0075] The processor 4 stores a program, and the processor is configured to run the program to perform the following steps:

[0076] acquiring an audio signal received by the MIC pin;

[0077] parsing the preset audio signal to obtain a first audio waveform;

[0078] parsing the audio signal received by the MIC pin to obtain a second audio waveform;

Comparing a frequency of the first audio waveform with a frequency of the second audio waveform;

[0081] if the frequency of the first audio waveform and the frequency change of the second audio waveform are consistent, and the amplitude of the first audio waveform \¥0 2019/104480 卩(:17 \2017/113380

The product obtained by multiplying 7 degrees by the amplification factor of the gain adjustment circuit is the same as the amplitude of the second audio waveform, and it is determined that the audio output pin is normal.

[0082] Preferably, the switch of the embodiment adopts a chip integrated with a switch & switch 1 , as shown in FIG. 2 .

The specific test principle is as follows:

[0083] 1. When testing the speaker pin 11, switch & cut to the channel connecting NC and COM, switch I? cut to NC and C

The channel connected by the OM, such that the signal output from the speaker pin 11 is input to the MIC pin 14 via the gain adjustment circuit 31, the switch _& switch 15;

[0084] 2. When testing the earpiece pin 12, switch & cut to the channel connecting NO and COM, switch I? cut to NC and CO

M connected channels, such that the signal output from the handset pin 12 is input to the MIC pin via the gain adjustment circuit 31, the switch _& switch;

[0085] 3. When the headphone pin 13 is tested, the switch & control is not required, and the switch 15 is cut to the channel where NO and COM are connected, so that the signal output from the earpiece pin 13 is input to the MIC through the gain adjustment circuit 31, the switch _& switch, and the switch. On the pin 14;

[0086] 4. The audio input module 2 outputs the positive cyclone sweep signal (such as the sweep of 11^810^) recorded by the audio file 〇1&^ through the speaker pin 11, the earphone pin 12 or the earphone pin 13. The MIC pin 14 receives the signal, and saves the received audio signal to generate an in.wav audio file. The processor 4 performs the 〇1& file stored in the audio input module and the audio waveform recorded in the in.wav file. Contrast, compare the amplitude and frequency of the audio waveform: (1) The frequency of the audio waveform recorded by the two files changes consistently, (2) 〇1 & the amplitude of the recorded audio waveform multiplied by the gain adjustment circuit voltage amplification (or attenuation) multiples and reception The voltage waveform of the audio waveform recorded in the in.wav file is the same, and it is judged that the speaker pin, the earpiece pin or the earphone pin function is normal.

Referring to FIG. 3, Embodiment 2 of the present invention is:

[0088] An audio pin test method for a communication module corresponding to the first embodiment, the output pin of the communication module is three, specifically including a speaker pin, a receiver pin, and a headphone pin, and the communication module The audio pin test methods include:

[0089] 81: selecting an audio output pin from the three audio output pins of the communication module as the audio output pin to be tested;

[0090] 82: output a preset audio signal from the audio output pin to be tested; \¥0 2019/104480 卩(:17 \2017/113380

8

[0091] 83: performing gain amplification or gain attenuation on a signal output from the audio output pin to be tested to a rated input range of the MIC pin of the communication module;

[0092] 84: input a gain amplified or gain attenuated signal to the MIC pin;

[0093] 85: parsing the preset audio signal to obtain a first audio waveform;

[0094] 86: parsing the audio signal received by the MIC pin to obtain a second audio waveform;

[0095] 87: comparing an amplitude of the first audio waveform with an amplitude of the second audio waveform;

[0096] 88: comparing a frequency of the first audio waveform with a frequency of the second audio waveform;

[0097] 89: if the frequency of the first audio waveform and the frequency variation of the second audio waveform are consistent, and the amplitude of the first audio waveform is multiplied by a multiple of the gain amplification or gain attenuation and the amplitude of the second audio waveform If the same, it is determined that the audio output pin to be tested is normal.

[0098] In summary, the audio pin test method and test device of the communication module provided by the present invention automatically test the function of the audio output pin by feeding back the signal output from the audio output pin to the MIC pin. , has the advantages of high test efficiency and high test accuracy.

[0099]

Claims

\¥0 2019/104480 卩(:17 \2017/113380 9 Claims

[Attach 1] A method for testing an audio pin of a communication module, comprising:

Transmitting a preset audio signal from the audio output pin of the communication module to be tested to the MI of the communication module (: pin;

Acquiring the audio signal received by the MIC pin;

Comparing the preset audio signal with an audio signal received by the MIC pin;

Whether the audio output pin to be tested is normal according to the result of the comparison.

[Claim 2] The audio pin test method of the communication module according to claim 1, wherein the "comparing the preset audio signal and the audio signal received by the MIC pin" comprises: parsing the The preset audio signal obtains the first audio waveform;

Parsing an audio signal received by the MIC pin to obtain a second audio waveform;

Comparing the amplitude of the first audio waveform with the amplitude of the second audio waveform; comparing the frequency of the first audio waveform with the frequency of the second audio waveform.

[Claim 3] The audio pin test method of the communication module according to claim 2, wherein the determining whether the audio output pin is normal according to the result of the comparison includes:

If the frequency of the first audio waveform coincides with the frequency variation of the second audio waveform, and the amplitude of the first audio waveform and the amplitude of the second audio waveform are the same, it is determined that the audio output pin to be tested is normal.

[Attachment 4] The audio pin test method of the communication module according to claim 2, wherein: "the preset audio signal is transmitted from the audio output pin of the communication module to be tested to the communication The MIC pin of the module" includes:

Outputting a preset audio signal from an audio output pin of the communication module to be tested; and performing gain amplification or gain attenuation on a signal output from the audio output pin to be tested to a rated input range of the MIC pin of the communication module ;

The gain amplified or gain-attenuated signal is input to the MIC pin.

[Claim 5] The audio pin test method of the communication module according to claim 4, wherein the gain amplification or gain attenuation is specifically voltage gain amplification or voltage gain attenuation.

[Claim 6] The audio pin test method of the communication module according to claim 4, wherein \¥0 2019/104480 卩(:17 \2017/113380

10 “Determining whether the audio output pin is normal according to the result of the comparison” includes:

If the frequency of the first audio waveform and the frequency change of the second audio waveform are identical, and the product of the amplitude of the first audio waveform multiplied by the multiple of the gain amplification or gain attenuation is the same as the amplitude of the second audio waveform, then the determination is performed. The audio output pins that are tested are normal.

[Claim 7] The audio output pin test method of the communication module according to claim 1, wherein the communication module includes two or more audio output pins, and the “preset audio signal from the The audio output pin of the communication module to be tested is transmitted to the M 1 (:pin) of the communication module before:

An audio output pin is selected from two or more of the audio output pins of the communication module as an audio output pin to be tested.

[Attachment 8] An audio pin testing device for a communication module, comprising: a signal input module, a signal transmission module, and a processor, wherein the signal input module is connected to an audio output pin of the communication module, and the signal transmission The input end of the module is connected to the audio output pin, the output end of the signal transmission module is connected to the MIC pin of the communication module, and the signal input module is configured to transmit a preset audio signal to the audio output pin, The processor stores a program, the processor is configured to run the program to perform the following steps: acquiring an audio signal received by the MIC pin;

Comparing the preset audio signal with an audio signal received by the MIC pin;

Whether the audio output pin is normal is judged according to the result of the comparison.

[Claim 9] The audio pin testing device of the communication module according to claim 8, wherein the "comparing the preset audio signal and the audio signal received by the MIC pin" comprises: parsing the The preset audio signal obtains the first audio waveform;

[Claim 10] The audio pin testing device of the communication module according to claim 9, wherein the determining whether the audio output pin is normal according to the result of the comparison includes:

If the frequency of the first audio waveform and the frequency of the second audio waveform change, and the first audio \¥0 2019/104480 卩(:17 \2017/113380

11 The amplitude of the waveform is the same as the amplitude of the second audio waveform, and it is determined that the audio output pin is normal.

The audio pin test method of the communication module according to claim 9, wherein the signal transmission module includes a gain adjustment circuit, and an input end of the gain adjustment circuit is connected to the audio output pin The output of the gain adjustment circuit is connected to the MIC pin.

[Claim 12] The audio pin testing device of the communication module according to claim 11, wherein the gain adjustment circuit is a voltage gain adjustment circuit.

[Claim 13] The audio pin testing device of the communication module according to claim 11, wherein the determining whether the audio output pin is normal according to the result of the comparison includes:

Determining if the frequency of the first audio waveform and the frequency change of the second audio waveform are the same, and the product of the amplitude of the first audio waveform multiplied by the amplification factor of the gain adjustment circuit is the same as the amplitude of the second audio waveform The audio output pin is normal.

[Claim 14] The audio output pin testing device of the communication module according to claim 8, wherein the number of the audio output pins is two or more, and the signal transmission module includes two or more gains. The adjustment circuit and the switch, two or more of the audio output pins respectively corresponding to the input ends of the two or more gain adjustment circuits, and the output ends of the two or more gain adjustment circuits are respectively connected to the input ends of the switch The output of the switch is connected to the MIC pin.

[Claim 15] The audio output pin testing device of the communication module according to claim 8, wherein the number of the audio output pins is two or more, and the signal transmission module includes a switch and a gain adjustment. The circuit, the two or more audio output pins are connected to the input end of the switch, the output end of the switch is connected to the gain adjustment circuit, and the output end of the gain adjustment circuit is connected to the MIC pin.