CN112345981A - Detection jig and method for detecting audio socket - Google Patents
Detection jig and method for detecting audio socket Download PDFInfo
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- CN112345981A CN112345981A CN202011027269.0A CN202011027269A CN112345981A CN 112345981 A CN112345981 A CN 112345981A CN 202011027269 A CN202011027269 A CN 202011027269A CN 112345981 A CN112345981 A CN 112345981A
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- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005236 sound signal Effects 0.000 claims abstract description 75
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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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
Abstract
The embodiment of the invention relates to the technical field of electronic equipment, in particular to a detection jig and a method for detecting an audio socket. The first resistor can attenuate an audio signal, so that the current in the microphone area is prevented from being too large, and the microphone in the electronic equipment is prevented from being damaged. In addition, the grounding loop formed by the grounding area, the second resistor and the microphone area can effectively divide the output audio signal to reduce the voltage of the microphone area, so that the microphone in the electronic equipment is prevented from being damaged due to the overlarge voltage of the microphone area. Therefore, after the electronic equipment receives the audio signal, whether the audio socket is normal or not can be determined according to the audio signal. The detection flow in the delivery detection or maintenance detection process of the audio socket can be simplified through the detection jig.
Description
Technical Field
The embodiment of the invention relates to the technical field of electronic equipment, in particular to a detection jig and a method for detecting an audio socket.
Background
Electronic equipment such as notebook computers and desktop computers are provided with audio sockets which are connected with audio plugs of earphones, so that users can listen to sound or record sound through the earphones. At present, an audio socket is a two-in-one socket for an earphone and a microphone, and the function test of the earphone and the microphone is performed before leaving a factory, so that the normal use of functions such as hardware can be ensured.
At present, for factory detection of an audio socket, a production line worker mainly inserts an earphone with a microphone manually, records audio and records the audio to detect whether the audio socket is normal or not by manual hearing. The manual recording playback mode is easy to have missing detection and misjudgment, and the manual recording playback has low detection efficiency.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a detection jig and a method for detecting an audio socket, where the detection jig can simplify a detection process in a factory detection or maintenance detection process of the audio socket, and implement automatic detection.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a detection fixture for detecting an audio jack of an electronic device, including:
the audio plug comprises a first sound channel area, a microphone area and a grounding area, wherein an insulating layer is arranged between any two adjacent areas of the first sound channel area, the microphone area and the grounding area;
the first channel area is electrically connected with the microphone area, and a first resistor is connected in series between the first channel area and the microphone area, wherein a first end of the first resistor is connected with the first channel area, a second end of the first resistor is connected with a first node, and the first node is connected with the microphone area;
the grounding area is electrically connected with the microphone area, a second resistor is connected between the grounding area and the microphone area in series, wherein the first end of the second resistor is connected with the grounding area, and the second end of the second resistor is connected with the first node.
In some embodiments, the audio plug further comprises a second channel region, an insulating layer being disposed between any two adjacent regions of the second channel region, the first channel region, the microphone region, and the ground region;
the second channel area is electrically connected with the microphone area, a third resistor is connected in series between the second channel area and the microphone area, a first end of the third resistor is connected with the second channel area, and a second end of the third resistor is connected with the first node.
In some embodiments, the microphone further comprises a capacitor, a first terminal of the capacitor is connected to the first node, and a second terminal of the capacitor is connected to the microphone area.
In some embodiments, the microphone further comprises a fourth resistor, a first end of the fourth resistor is connected to the second end of the capacitor, and a second end of the fourth resistor is connected to the microphone area.
In some embodiments, the device further comprises a fifth resistor, a first end of the fifth resistor is connected to a second end of the fourth resistor, and a second end of the fifth resistor is connected to the ground region.
In some embodiments, the capacitance value of the capacitor is not less than 0.1 uF.
In order to solve the above technical problem, in a second aspect, an embodiment of the present invention provides a method for detecting an audio jack of an electronic device, including:
inserting an audio plug of the detection jig in the first aspect into an audio socket of an electronic device, wherein the audio plug and the audio socket are mutually matched to form a feedback loop;
controlling a player built in the electronic equipment to play audio and output an audio signal, wherein the audio signal is transmitted to the microphone area through the first channel area and the second channel area, and the audio signal is transmitted to a controller of the electronic equipment through the microphone area;
and the controller determines whether the audio socket is normal or not according to the audio signal.
In some embodiments, the controller determining whether the audio jack is normal based on the audio signal includes:
acquiring the amplitude of the audio signal;
judging whether the amplitude of the audio signal meets a preset requirement or not;
and if so, determining that the audio socket is normal.
In some embodiments, the preset requirement is that the amplitude of the audio signal is greater than or equal to a preset amplitude threshold.
In some embodiments, before the step of controlling the electronic device to play audio, the method further includes:
the controller detects whether the audio socket is communicated with the detection tool;
and if so, executing the step of controlling a player built in the electronic equipment to play audio.
The embodiment of the invention has the following beneficial effects: in contrast to the prior art, in the detection fixture provided in the embodiment of the present invention, when the audio plug of the detection fixture is inserted into the audio jack of the electronic device, the audio signal output by the electronic device is transmitted in the first signal loop formed by the first channel region, the first resistor, and the microphone region, and is transmitted back to the electronic device. The first resistor can attenuate an audio signal, so that the current in the microphone area is prevented from being too large, and the microphone in the electronic equipment is prevented from being damaged. In addition, the grounding loop formed by the grounding area, the second resistor and the microphone area can effectively divide the output audio signal to reduce the voltage of the microphone area, so that the microphone in the electronic equipment is prevented from being damaged due to the overlarge voltage of the microphone area. Therefore, after the electronic equipment receives the audio signal, whether the audio socket is normal or not can be determined according to the audio signal. The detection process of the audio socket in the factory detection or maintenance detection process can be simplified through the detection jig, and automatic detection is realized.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic view of an application system of a detection fixture according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an audio plug of a detection fixture according to an embodiment of the invention;
fig. 3 is a schematic diagram of an audio plug of a detection fixture according to another embodiment of the invention;
fig. 4 is a schematic circuit connection diagram of a detection fixture according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for detecting an audio jack of an electronic device according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a sub-process of step S23 in the method of FIG. 5;
fig. 7 is a flowchart illustrating a method for detecting an audio jack of an electronic device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that, if not conflicted, the various features of the embodiments of the invention may be combined with each other within the scope of protection of the present application. Additionally, while functional block divisions are performed in apparatus schematics, with logical sequences shown in flowcharts, in some cases, steps shown or described may be performed in sequences other than block divisions in apparatus or flowcharts. Further, the terms "first," "second," "third," and the like, as used herein, do not limit the data and the execution order, but merely distinguish the same items or similar items having substantially the same functions and actions.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic view of an application system of a detection fixture 100 according to an embodiment of the present invention. The application system comprises an electronic device 200 and a detection fixture 100.
The electronic device 200 is a device having an audio playing function and an audio recording function, and may be, for example, a notebook computer, a desktop computer, a tablet computer, a smart phone, a smart watch, and the like. The electronic device 200 is provided with an audio socket 201, and the audio socket 201 is a two-in-one socket of an earphone and a microphone. Therefore, when the audio jack 201 of the electronic device 200 is plugged into an earphone, a user can listen to the sound played by the player built in the electronic device 200 through the earphone with a microphone, and can record the sound. For example, when a voice conference is performed with a notebook computer (electronic device 200), the user can talk with another person by inserting an earphone with a microphone into the audio jack 201 of the notebook computer and matching with corresponding voice software.
Specifically, the audio jack 201 includes a sound channel contact, a ground contact, and a microphone contact (not shown), when a plug of an earphone with a microphone is inserted into the audio jack 201, a sound channel region on the earphone plug is communicated with the sound channel contact, a ground region 13 on the earphone plug is communicated with the ground contact, and a microphone region 12 on the earphone plug is communicated with the microphone contact, so that an audio signal output by the electronic device 200 is transmitted to a speaker of the earphone through the sound channel contact and the sound channel region, and the audio signal is converted into sound by the speaker and transmitted to the ear of the user. When the user records, the microphone on the earphone converts the voice of the user into a recording signal, and the recording signal is transmitted to the electronic device 200 through the microphone area 12 and the microphone contact piece, i.e. the recorded audio is obtained.
In order to improve the accuracy and efficiency of factory detection of the audio socket 201, the invention provides a detection jig 100, and the detection jig 100 is matched with the audio socket 201 of the electronic device 200 to be detected, so that playing transmission and recording transmission of audio signals can be performed. This detection tool 100 can be with the audio signal passback to audio socket 201's microphone contact piece through audio socket 201's sound track contact piece output to, carry out the audio frequency and record, also promptly, directly be used for recording the audio frequency of electronic equipment 200 output, on the one hand, can accurately detect out whether each contact of audio socket 201 is normal, on the other hand, only need once audio transmission to detect, need not twice audio transmission, also promptly, electronic equipment 200's audio output and audio record only need once detect can, detection efficiency is high.
Referring to fig. 2 and 4, the detection fixture 100 includes an audio plug 10, the audio plug 10 includes a first sound channel region 11, a microphone region 12 and a ground region 13, and an insulating layer 14 is disposed between any two adjacent regions of the first sound channel region 11, the microphone region 12 and the ground region 13; wherein the first channel region 11 is electrically connected to the microphone region 12, and a first resistor 161 is connected in series between the first channel region 11 and the microphone region 12, wherein a first end of the first resistor 161 is connected to the first channel region 11, a second end of the first resistor 161 is connected to a first node 18, and the first node 18 is connected to the microphone region 12; the ground region 13 is electrically connected to the microphone region 12, and a second resistor 162 is connected in series between the ground region 13 and the microphone region 12, wherein a first end of the second resistor 162 is connected to the ground region 13, and a second end of the second resistor 162 is connected to the first node 18.
In this embodiment, the audio plug 10 is a three-pin plug for mono transmission, and the audio plug 10 and the audio jack 201 are adapted to each other. When the audio plug 10 is inserted into the audio jack 201 of the electronic device 200, the first sound channel zone 11 is electrically connected to the first sound channel contact of the audio jack 201, the ground zone 13 is electrically connected to the ground contact of the audio jack 201, and the microphone zone 12 is electrically connected to the microphone contact of the audio jack 201, so that the audio signal output from the first sound channel contact can be transmitted to the microphone contact. The audio signal output by the electronic device 200 is transmitted in the first signal loop formed by the first channel section 11, the first resistor 161 and the microphone section 12, and is transmitted back to the electronic device 200. The first resistor 161 may attenuate the audio signal, so as to prevent the microphone area from having too large current and damaging the microphone inside the electronic device 200. In addition, the ground loop formed by the ground area 13, the second resistor 162 and the microphone area 12 can effectively divide the output audio signal to reduce the voltage of the microphone area, so as to prevent the microphone area from being excessively high voltage and damaging the microphone inside the electronic device 200.
Therefore, when the electronic device 200 receives the audio signal, it can determine whether the audio jack 201 is normal according to the audio signal. The detection process of the audio socket 201 in the factory detection or maintenance detection process can be simplified through the detection fixture 100.
It is understood that the first resistor 161 and the second resistor 162 can prevent the short circuit of the loop, and prevent the microphone inside the electronic device 200 from being damaged due to the excessive voltage or current in the microphone area 12. In some embodiments, the first resistor 161 is 1000 ohms and the second resistor 162 is 100 ohms.
In some implementations, referring to fig. 3 and 4, the audio plug 10 further includes a second channel region 15, an insulating layer 14 is disposed between any two adjacent regions of the second channel region 15, the first channel region 11, the microphone region 12, and the ground region 13, the second channel region 15 is electrically connected to the microphone region 12, a third resistor 163 is connected in series between the second channel region 15 and the microphone region 12, a first end of the third resistor 163 is connected to the second channel region 15, and a second end of the third resistor 163 is connected to the first node 18.
In this embodiment, the audio jack 10 is a four-core jack for two-channel transmission, and the audio jack 201 matching with the jack also has a second channel contact, and a second signal loop is formed by the second channel region 15, the third resistor 163 and the microphone region 12. When the audio jack 10 is plugged into a mating quad jack, the first channel zone 11 is in electrical communication with the first channel contact of the audio jack 201, the ground zone 13 is in electrical communication with the ground contact of the audio jack 201, the microphone zone 12 is in electrical communication with the microphone contact of the audio jack 201, and the second channel zone 15 is in electrical communication with the second channel contact of the audio jack 201, thereby forming two audio signal loops: the first signal circuit and the second signal circuit. Thus, the audio signal can be transmitted to the electronic device 200 by the first signal loop or the second signal loop, so that the detection of the audio jack 201 with two channels can be satisfied. The third resistor 163 can prevent the current in the second signal loop from being too large and damaging the microphone inside the electronic device 200. In some embodiments, the third resistor 163 is 1000 ohms.
It can be understood that, in order to eliminate the interference of the dc signal, in some embodiments, as shown in fig. 4, the detection fixture 100 further includes a capacitor 17, a first end of the capacitor 17 is connected to the first node 18, a second end of the capacitor 17 is connected to the microphone 12, and the audio signal is filtered by the capacitor 17 and then transmitted to the microphone 12, so that the capacitor 17 can eliminate the dc signal mixed in the audio signal, thereby reducing the interference in the audio signal and being beneficial to improving the accuracy of the normality detection of the audio socket 201. In some embodiments, the capacitance value of the capacitor 17 is not less than 0.1uF, so as to ensure that the loss of the audio signal is small and the transmission of the low-frequency signal is also facilitated.
In some embodiments, referring to fig. 4, the detection fixture 100 further includes a fourth resistor 164, a first end of the fourth resistor 164 is connected to the second end of the capacitor 17, and a second end of the fourth resistor 164 is connected to the microphone area 12. After the audio signal is filtered by the capacitor 17, the audio signal needs to be transmitted to the microphone area 12 through the fourth resistor 164, and the fourth resistor 164 further attenuates the audio signal to reduce the current in the loop, so as to prevent the microphone area from outputting too large current to damage the microphone inside the electronic device 200. In some embodiments, the third resistor 163 may have a resistance of 100 ohms.
In some embodiments, please refer to fig. 4 again, further comprising a fifth resistor 165, a first end of the fifth resistor 165 is connected to a second end of the fourth resistor 164, and a second end of the fifth resistor 165 is connected to the ground region 13. The fifth resistor 165 may effectively separate the interfering signal from the audio signal. It is understood that the fifth resistor 165 is an empirical value set according to actual conditions, the fifth resistor 165 has a small internal resistance with respect to the audio signal, and thus has a small influence on the audio signal, but the fifth resistor 165 has a large internal resistance with respect to the interference signal, and thus can separate the interference signal, that is, the interference signal is input to the ground region 13 through the fifth resistor 165, so that the audio signal input to the electronic device 200 has a high signal quality.
In this embodiment, this detection tool 100 can pass back the audio signal of audio channel contact output through audio socket 201 to the microphone contact of audio socket 201, thereby, carry out the audio recording, that is, directly be used for recording the audio frequency of electronic equipment 200 output, on the one hand, can accurately detect out whether each contact of audio socket 201 is normal, that is audio signal transmission and recording signal transmission are normal, on the other hand, only need once audio transmission to detect, need not twice audio transmission, that is, electronic equipment 200's audio output and audio recording only need once detect can, detection efficiency is high.
An embodiment of the present invention further provides a method for detecting an audio jack of an electronic device, referring to fig. 5, the method includes:
step S21: the audio plug of the detection jig is inserted into an audio socket of electronic equipment, and the audio plug and the audio socket are mutually matched to form a feedback loop
Step S22: and controlling a player arranged in the electronic equipment to play audio and outputting an audio signal, wherein the audio signal is transmitted to the microphone area through the first channel area and the second channel area, and the audio signal is transmitted to a controller of the electronic equipment through the microphone area.
Step S23: and the controller determines whether the audio socket is normal or not according to the audio signal.
When the audio socket of the electronic equipment is detected to be normal, the detection jig is only required to be inserted into the audio socket to form a feedback loop. It can be understood that, when the audio socket is a four-core socket, the audio plug of the corresponding detection fixture is a four-core plug.
Then, a player built in the electronic device is controlled to play audio, an audio signal is output, and the audio signal is transmitted to the microphone area through the first channel area and the second channel area, namely, the audio signal is transmitted to a controller of the electronic device through the first signal loop and the second signal loop.
The controller can determine whether the audio socket is normal according to the condition of receiving the audio signal. For example, when the controller does not receive the audio signal, it may be determined that the audio jack is abnormal, when the controller receives the audio signal, it may be determined whether the audio jack is normal according to the quality of the audio signal, if the quality of the audio signal is poor, it is determined that the audio jack is abnormal, and if the quality of the audio signal is good, it is determined that the audio jack is normal.
In this embodiment, pass back the audio signal of electronic equipment output to electronic equipment through this detection tool, through carrying out algorithm analysis to audio signal, can confirm whether audio socket is normal to, need not artifical the answer judgement, reduced the human cost, still improved the degree of accuracy and the efficiency that detect.
In some embodiments, referring to fig. 6, the step S23 specifically includes:
s231: the amplitude of the audio signal is obtained.
S232: and judging whether the amplitude of the audio signal meets a preset requirement, and if so, executing the step S233.
S233: determining that the audio jack is normal.
In the present embodiment, the audio signal is actually an electrical signal. The controller may obtain the amplitude of the audio signal after receiving the audio signal (electrical signal). Then, by judging whether the amplitude of the audio signal meets a preset requirement, if the audio socket is normal, the amplitude of the audio signal should meet the preset requirement, wherein the preset requirement can be determined according to the audio signal normally received by the audio socket.
For example, in some embodiments, the preset requirement is that the amplitude of the audio signal is greater than or equal to a preset amplitude threshold. It should be noted that the preset amplitude threshold may be an empirical value set manually, or may be set according to the volume of a player built in the electronic device. That is, when the amplitude of the audio signal is greater than or equal to the preset amplitude threshold, it is determined that the audio jack is normal.
In order to prevent the audio plug of the detection fixture from being inserted improperly and causing a false determination, in some embodiments, referring to fig. 7, before the step S22, the method further includes:
step S24: the controller detects whether the audio socket is communicated with the detection tool, and if so, executes step S22.
In this embodiment, first, whether the audio socket and the detection tool are normally connected is detected by the controller, and if so, the player is controlled to play audio for detection. Specifically, whether the detection tool is normally inserted and connected can be determined by detecting the change of the electric signal at the audio socket.
In this embodiment, the audio socket can be ensured to be detected under the condition that the audio socket is normally communicated with the detection tool, so that the audio plug of the detection tool can be effectively prevented from being inserted abnormally to cause misjudgment.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a general hardware platform, and certainly can also be implemented by hardware. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a detection tool is applied to the audio socket who detects electronic equipment, its characterized in that includes:
the audio plug comprises a first sound channel area, a microphone area and a grounding area, wherein an insulating layer is arranged between any two adjacent areas of the first sound channel area, the microphone area and the grounding area;
the first channel area is electrically connected with the microphone area, and a first resistor is connected in series between the first channel area and the microphone area, wherein a first end of the first resistor is connected with the first channel area, a second end of the first resistor is connected with a first node, and the first node is connected with the microphone area;
the grounding area is electrically connected with the microphone area, a second resistor is connected between the grounding area and the microphone area in series, wherein the first end of the second resistor is connected with the grounding area, and the second end of the second resistor is connected with the first node.
2. The detecting tool according to claim 1, wherein the audio plug further comprises a second channel region, and an insulating layer is disposed between any two adjacent regions of the second channel region, the first channel region, the microphone region and the grounding region;
the second channel area is electrically connected with the microphone area, a third resistor is connected in series between the second channel area and the microphone area, a first end of the third resistor is connected with the second channel area, and a second end of the third resistor is connected with the first node.
3. The inspection fixture of claim 1 or 2, further comprising a capacitor, wherein a first end of the capacitor is connected to the first node and a second end of the capacitor is connected to the microphone area.
4. The detecting tool according to claim 3, further comprising a fourth resistor, wherein a first end of the fourth resistor is connected to a second end of the capacitor, and a second end of the fourth resistor is connected to the microphone area.
5. The detecting tool of claim 4, further comprising a fifth resistor, wherein a first end of the fifth resistor is connected to a second end of the fourth resistor, and a second end of the fifth resistor is connected to the grounding area.
6. The inspection fixture of any one of claims 4 or 5, wherein a capacitance value of the capacitor is not less than 0.1 uF.
7. A method of detecting an audio jack of an electronic device, comprising:
inserting an audio plug of the detection jig according to any one of claims 2 to 6 into an audio socket of an electronic device, the audio plug and the audio socket being adapted to form a feedback loop;
controlling a player built in the electronic equipment to play audio and output an audio signal, wherein the audio signal is transmitted to the microphone area through the first channel area and the second channel area, and the audio signal is transmitted to a controller of the electronic equipment through the microphone area;
and the controller determines whether the audio socket is normal or not according to the audio signal.
8. The method of claim 7, wherein the controller determines whether the audio jack is normal based on the audio signal, comprising:
acquiring the amplitude of the audio signal;
judging whether the amplitude of the audio signal meets a preset requirement or not;
and if so, determining that the audio socket is normal.
9. The method of claim 8, wherein the predetermined requirement is that the amplitude of the audio signal is greater than or equal to a predetermined amplitude threshold.
10. The method according to any one of claims 7-9, further comprising, before the step of controlling the electronic device to play audio:
the controller detects whether the audio socket is communicated with the detection tool;
and if so, executing the step of controlling a player built in the electronic equipment to play audio.
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| CN112345981B (en) | 2023-06-27 |
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