CN113573227B - Microphone fault detection system, detection method thereof, electronic device and storage medium - Google Patents
Microphone fault detection system, detection method thereof, electronic device and storage medium Download PDFInfo
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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
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Abstract
The application provides a microphone fault detection system and a detection method thereof, electronic equipment and a storage medium, wherein the microphone fault detection system comprises: the voltage detection module is connected with the power end of the microphone to be detected and is used for detecting the voltage of the power end of the microphone to be detected; the voltage detection module is connected with the processor module, and the processor module is used for receiving the voltage, analyzing data based on the voltage and outputting the state of the microphone, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state. The application solves the problems of poor real-time performance and operability of the existing microphone fault detection, and further completes the detection of the microphone without the intervention of disassembling microphone devices and instruments, thereby being applicable to various links from research and development, production to after-sale of electronic products, improving the development and production efficiency of the products, and improving the product performance and service quality.
Description
Technical Field
The application belongs to the technical field of microphones, and particularly relates to a microphone fault detection system, a detection method and equipment thereof, and a storage medium.
Background
The microphone is a sensor for converting sound into an electric signal, and is widely applied to electronic equipment such as mobile phones, flat plates, earphones, intelligent sound equipment, intelligent watches and the like. The microphone is faulty in the use process, so that the voice communication and voice interaction functions of the electronic equipment are disabled. At present, the fault detection of the microphone is carried out before leaving a factory, and the fault detection is carried out by depending on an audio analyzer of a factory production line or a laboratory, but if faults occur in the use process of the microphone, the fixedly installed microphone needs to be detached, and then the fault cause is detected by means of a detection instrument, so that the real-time performance and the operability are poor.
Disclosure of Invention
The microphone fault detection system, the detection method, the electronic equipment and the storage medium thereof solve the problems of poor real-time performance and operability of the existing microphone fault detection.
In a first aspect, an embodiment of the present application provides a microphone fault detection system, including:
the voltage detection module is connected with the power end of the microphone to be detected and is used for detecting the voltage of the power end of the microphone to be detected;
the voltage detection module is connected with the processor module, and the processor module is used for receiving the voltage, analyzing data based on the voltage and outputting the state of the microphone, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state.
Optionally, the processor module is provided with a voltage comparing unit and an output unit, the voltage comparing unit is provided with a first voltage interval, a second voltage interval and a third voltage interval, the voltage comparing unit is connected with the voltage detecting module and is used for analyzing the interval to which the voltage belongs and outputting an analysis result, and the output unit is connected with the voltage comparing unit and is used for outputting the state of the microphone according to the analysis result;
the voltage comparison unit analyzes that the voltage falls into a first voltage interval, the output unit outputs that the microphone is in a short circuit state, the voltage comparison unit analyzes that the voltage falls into a second voltage interval, the output unit outputs that the microphone is in a normal state, and the voltage comparison unit analyzes that the voltage falls into a third voltage interval, the output unit outputs that the microphone is in an open circuit state.
Optionally, the microphone to be detected includes an electrostatic protection circuit connected to the power supply terminal;
when the voltage falls into a first voltage interval, the output unit outputs that the microphone is in a short circuit state and prompts that a diode of the electrostatic protection circuit is broken down by static electricity.
Optionally, when the voltage falls within the third voltage interval, the output unit outputs that the microphone is in an open state, and prompts that the microphone pad is open.
Optionally, the first voltage interval is set to [0, V]The second voltage interval is set to [ V 1 -V, V 1 +V]The third voltage interval is set to [ V 2 -V, V 2 ]Wherein V is 1 Voltage of power supply terminal when microphone is working normally, V 2 The microphone is powered by a voltage, V being the voltage deviation value.
Optionally, the voltage is a bias voltage.
In a second aspect, an embodiment of the present application further provides a fault detection method, including the following steps:
acquiring the voltage of a microphone power supply end;
and carrying out data analysis based on the voltage, and outputting the state of the microphone according to the data analysis result, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state.
Optionally, data analysis is performed based on the voltage, and the state of the microphone is output according to the data analysis result, including the following steps:
presetting a first voltage interval, a second voltage interval and a third voltage interval;
judging the interval of the voltage;
when the voltage falls into a first voltage interval, the microphone is in a short circuit state, when the voltage falls into a second voltage interval, the microphone is in a normal state, and when the voltage falls into a third voltage interval, the microphone is in an open circuit state.
In a third aspect, an embodiment of the present application further provides an electronic device, including a microphone fault detection system as described in any one of the foregoing.
In a fourth aspect, an embodiment of the present application further provides a readable storage medium having stored thereon a computer program, which when executed implements the fault detection method as described in any one of the above.
According to the microphone fault detection system, the detection method thereof, the electronic equipment and the storage medium, the voltage of the power supply end of the microphone is detected by the voltage detection module, the voltage is subjected to data analysis by the processor module, the state of the microphone is output, the problem that the existing microphone fault detection is poor in instantaneity and operability is solved, the detection of the microphone is completed without the intervention of disassembling a microphone device and instrument equipment, the microphone fault detection system is suitable for various links from research and development, production to after-sale of electronic products, the development and production efficiency of the products are improved, and the performance and service quality of the products are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
Fig. 1 is a circuit diagram of a microphone to be detected according to an embodiment of the present application.
Fig. 2 is a schematic block diagram of a system for detecting a microphone fault according to an embodiment of the present application.
Fig. 3 is a block diagram of a processor module in a microphone fault detection system according to an embodiment of the present application.
Fig. 4 is a flowchart of a method for detecting a microphone fault according to an embodiment of the present application.
Fig. 5 is a flowchart of a method of step S2 according to an embodiment of the present application.
Fig. 6 is a schematic block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
The embodiment of the application provides a microphone fault detection system, which aims to solve the problems of poor real-time performance and operability of the existing microphone fault detection. The following description will be given with reference to the accompanying drawings.
The microphone to be detected provided by the embodiment of the application can be a microphone applied to electronic equipment such as a mobile phone, a tablet, a headset, a sound box, a smart watch and the like, and the microphone to be detected provided by the embodiment of the application is exemplified by the microphone applied to the mobile phone.
Fig. 1 is a circuit diagram of a microphone to be detected according to the present embodiment.
Referring to fig. 1, the microphone to be detected includes a microphone device Mic21, a first electrostatic protection circuit, a second electrostatic protection circuit, a filtering circuit and a filtering circuit, where the microphone device Mic21 has three pins, which are a Power supply terminal Power, an Output terminal Output and a ground GND, the Power supply terminal Power is connected to a Power supply MICBIAS21, when the microphone is started, the Power supply Mic-BIAS21 supplies Power to the microphone device Mic21, the filtering circuit is electrically connected to the Power supply terminal Power, the filtering circuit is used for filtering Power supply ripples, the first electrostatic protection circuit is electrically connected to the Power supply terminal Power, the first electrostatic protection circuit provides electrostatic protection for the Power supply terminal Power of the microphone device Mic21, the second electrostatic protection circuit is electrically connected to the Output terminal Output, the filtering circuit provides electrostatic protection for the Output terminal Output of the microphone device Mic21, and the filtering circuit is connected to the ground GND, and the filtering circuit is used for interference of the microphone device Mic 21.
The first electrostatic protection circuit includes an electrostatic protection diode T22, where the electrostatic protection diode T22 is connected to the Power supply terminal Power and the ground GND; the second electrostatic protection circuit comprises an electrostatic protection diode T21, and the electrostatic protection diode T21 is connected with an Output end Output and a ground GND; the filter circuit comprises a capacitor C23, and the capacitor C23 is connected with a Power end Power and a ground GND; the filtering circuit comprises a capacitor C22 for filtering high-frequency noise interference, a capacitor C21 for filtering common-mode noise interference, a magnetic bead B21 and a magnetic bead B22 for filtering coupling interference, wherein the capacitor C22 is connected with an Output end Output and a ground GND, the capacitor C21 is connected with the Output end Output and the ground GND, the magnetic bead B21 is connected with the Output end Output and the microphone Output end Mic21+, the magnetic bead B22 is connected with the ground GND and the microphone ground end Mic21-, and when the microphone is started, a power supply MIC-BIAS21 supplies power to a microphone device Mic21, the microphone device Mic21 converts sound into electric signals, and the electric signals are Output from the microphone Output end Mic21+ and the microphone ground end Mic21-, so that sound pickup is completed.
The microphone device Mic21 has a plurality of ports connected to the Power terminal Power, one of which is rotated as a detection port ADC21, and the voltage of the Power terminal Power of the microphone device Mic21 is detected by the detection port ADC 21. The existing port can be utilized, and a new port can be arranged, so that the structure is simple, and the voltage detection is convenient.
Fig. 2 is a schematic block diagram of a system for detecting a microphone fault according to an embodiment of the present application.
Referring to fig. 2, an embodiment of the present application provides a fault detection system for a microphone 3, including: the voltage detection module 1 is connected with a Power end Power of the microphone 3 to be detected through a detection port ADC21, and is used for detecting the voltage of the Power end Power of the microphone 3 to be detected, the voltage detection module 1 is connected with the processor module 2, and the processor module 2 is used for receiving the voltage, analyzing data based on the voltage and outputting the state of the microphone 3, wherein the state of the microphone 3 comprises a normal state, a short circuit state and an open circuit state.
Fig. 3 is a block diagram of the processor module 2 in the fault detection system for the microphone 3 according to the embodiment of the present application.
In some embodiments, referring to fig. 3, the processor module 2 is provided with a voltage comparing unit and an output unit, the voltage comparing unit is provided with a first voltage interval, a second voltage interval and a third voltage interval, the voltage comparing unit is connected with the voltage detecting module 1 and is used for analyzing the interval to which the voltage belongs and outputting an analysis result, and the output unit is connected with the voltage comparing unit and is used for outputting the state of the microphone 3 according to the analysis result; when the voltage comparison unit analyzes that the voltage falls into the first voltage interval, the output microphone 3 is in a short circuit state, when the voltage comparison unit analyzes that the voltage falls into the second voltage interval, the output microphone 3 is in a normal state, and when the voltage comparison unit analyzes that the voltage falls into the third voltage interval, the output microphone 3 is in an open circuit state. It can be understood that setting three voltage intervals, analyzing the voltage interval where the voltage of the detection port ADC21 is located, can automatically judge the working state of the microphone 3 device and the circuit thereof, the above modules can be realized by development software, the microphone 3 state detection can be completed without dismantling the microphone 3, the product development efficiency, the production quality and the yield are effectively prompted, and the after-sales service response speed and the quality of the user side are improved.
In some embodiments, the microphone 3 to be detected comprises an electrostatic protection circuit connected to a power supply terminal; when the voltage falls into the first voltage range, the output unit outputs that the microphone 3 is in a short circuit state, and prompts the diode T22 of the electrostatic protection circuit to be broken down electrostatically. It will be appreciated that when the diode T22 is broken down electrostatically, the Power terminal Power of the device of the microphone 3 is connected to the ground GND, and the output unit prompts the microphone 3 to be in a short-circuit state, and the diode T22S is damaged.
In some embodiments, when the voltage falls within the third voltage interval, the output unit outputs that the microphone 3 is in an open state and prompts the microphone 3 pad to open. It can be understood that when the microphone 3 is poorly soldered or the pad of the microphone 3 is disconnected due to external force, the circuit of the microphone 3 is in an open state, and the output unit prompts the microphone 3 to be in an open state, so that the pad of the microphone 3 is disconnected.
For staff in each link from research, production and after-sales, the fault diagnosis of the microphone 3 can be completed without dismantling the microphone 3, the function and the working state of the microphone 3 are automatically analyzed and identified, the fault cause is suitable for each link from research, production to after-sales of electronic products, the product development efficiency is effectively improved, and the after-sales service response speed and quality of a user side are effectively improved.
In some embodiments, the voltage is a bias voltage.
In some embodiments, the first voltage interval is set to [0, V]The second voltage interval is set to [ V 1 -V, V 1 +V]The third voltage interval is set to [ V 2 -V, V 2 ]Wherein V is 1 For the normal operation of the microphoneSource terminal voltage, V 2 The microphone is powered by a voltage, V being the voltage deviation value.
Typically, the Power MIC-BIAS21 is configured with a 2.1V output, and the microphone operates normally such that the BIAS voltage of the Power terminal Power of the microphone device MIC21 is 1.4V; when the microphone is subjected to electrostatic damage in the production or use process, the diode T22 is broken down and conducted, the Power end Power of the microphone device Mic21 is grounded and short-circuited, and the bias voltage of the Power end Power of the microphone device Mic21 is 0V; when the microphone bonding pad is in poor welding or falls and impacts in the using process, and the microphone bonding pad is open, the Power MICBIAS21 cannot normally Power up the microphone, the bias voltage of the Power end Power of the microphone device Mic21 is 2.1V, and due to a certain bias value in the voltage detection process, the first voltage interval is [0V,0.3V ], the second voltage interval is [1.2V, 1.6V ], and the third voltage interval is [ 1.9V, 2.1V ]. It can be understood that when the configuration voltages of the power MIC-BIAS21 are different, different first voltage intervals, second voltage intervals, and third voltage intervals are set correspondingly.
It can be understood that the bias voltage of the microphone device Mic21 is obtained through the implementation of the detection port ADC21, and the working state of the microphone device Mic21 and the circuit thereof can be effectively judged according to the magnitude of the microphone bias voltage, the detection process can be automatically executed without being perceived by a user, and only the microphone fault is detected, so that the user can know that the microphone is faulty only according to the prompt, and the convenience of microphone fault detection of the mobile terminal user is greatly improved.
Fig. 4 is a flowchart of a fault detection method according to an embodiment of the present application.
In some embodiments, referring to fig. 4, there is also provided a fault detection method, including the steps of:
s1, acquiring the voltage of a microphone power supply end;
s2, carrying out data analysis based on the voltage, and outputting the state of the microphone according to the data analysis result, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state.
Fig. 5 is a flowchart of step S2 provided in the embodiment of the present application.
In some embodiments, referring to fig. 5, S2 performs data analysis based on voltage, and outputs a state of a microphone according to a result of the data analysis, including the steps of:
s20, presetting a first voltage interval, a second voltage interval and a third voltage interval;
s21, judging a section to which the detected voltage belongs;
s22, when the voltage falls into a first voltage interval, the microphone is in a short circuit state, when the voltage falls into a second voltage interval, the microphone is in a normal state, and when the voltage falls into a third voltage interval, the microphone is in an open circuit state.
Illustratively, the decision logic of S21 is as follows: judging whether the detected voltage falls into a second voltage interval, if the detected voltage falls into a second voltage interval, entering a next detection voltage judgment, reversing the detection voltage, judging whether the detected voltage falls into a first voltage interval, if the detected voltage falls into the first voltage interval, enabling an output microphone to be in a short circuit state, prompting a diode T22 of an electrostatic protection circuit to be broken down by static electricity, reversing the detection voltage, judging whether the detected voltage falls into the second voltage interval, if the detected voltage falls into a third voltage interval, enabling the output microphone to be in an open circuit state, prompting a microphone bonding pad to be open, reversing the detection voltage, and entering the next detection voltage judgment. It can be understood that when the microphone is normal, the judgment is only needed once, so that the program running speed is increased. In addition, the detection process can be automatically executed and is not perceived by a user, and prompt is only carried out when the microphone fault is detected, so that the user can know that the microphone breaks down only according to the prompt, and the convenience of microphone fault detection of the mobile terminal user is greatly improved.
Fig. 6 is a schematic block diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 6, the present embodiment provides an electronic device, which includes a voltage detection module 1, a processor module 2, a microphone 3, a power module 4, and a communication bus 5, where the voltage detection module 1, the processor module 2, the microphone 3, and the power module 4 complete communication with each other through the communication bus 5, the processor module 2 is configured to control the power module 4 to supply power to the microphone 3, the voltage detection module 1 is configured to detect a voltage at a power supply end of the microphone 3 in real time, and transmit the detected voltage to the processor module 2 through the communication bus 5, and the processor module 2 is configured to receive the voltage, perform data analysis based on the voltage, and output a microphone state, where the microphone state includes a normal state, a short circuit state, and an open circuit state.
In addition, the electronic device comprises a memory 6, and the processor module 2 may invoke logic commands in the memory 6 to perform the following method: acquiring the voltage of a microphone power supply end; and carrying out data analysis based on the voltage, and outputting the states of the microphone according to the data analysis result, wherein the states of the microphone comprise a normal state, a short circuit state and an open circuit state. The logic commands in the memory 6 may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium, comprising several commands for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Embodiments of the present application also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the methods provided by the above embodiments, for example, comprising: acquiring the voltage of a microphone power supply end; and carrying out data analysis based on the voltage, and outputting the state of the microphone according to the data analysis result.
The term "module" as used in this disclosure may refer to a module comprising, for example, one or a combination of hardware, software, and firmware. For example, the term "module" may be used interchangeably with other terms such as a unit, logic block, component, or circuit. A "module" may be the smallest unit of a component of unitary construction or a portion thereof. A "module" may be used in a smallest unit or portion thereof for performing one or more functions. The "module" may be implemented mechanically or electronically. For example, in accordance with the present disclosure, a "module" may include at least one of an application specific integrated circuit chip (ASIC), a Field Programmable Gate Array (FPGA), and a programmable logic device, either known or later developed and that performs certain functions. According to various embodiments, at least a portion of an apparatus (e.g., a module or function thereof) or a method (e.g., an operation) may be implemented to program the module to form instructions stored in a non-transitory computer readable storage medium. When executed by a processor, the processor may perform functions corresponding to the instructions. The non-transitory computer readable storage medium may include magnetic media such as hard disks, floppy disks, and color stripes, optical media such as CD-ROMs, and DVDs, magneto-optical media such as optical disks, and hardware devices specifically configured for storing and executing program instructions. In addition, the program instructions may include high-level language code that is executed in a computer using an interpreter, and may also include machine code that is produced by a compiler. A module or programming module according to various embodiments may include or exclude at least one of the above-described components, or further include any other component. Operations performed by modules, programmed modules, or any other components in accordance with various embodiments may be performed sequentially, in parallel, repeatedly, or by heuristics. In addition, some operations may be performed in a different order or omitted, or any other operations may be added.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The microphone fault detection system, the detection method, the device and the storage medium thereof provided by the embodiment of the application are described in detail, and specific examples are applied to the explanation of the principle and the implementation of the application, and the explanation of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the present description should not be construed as limiting the present application in summary.
Claims (7)
1. A microphone fault detection system for a microphone on an electronic device, comprising:
the voltage detection module is connected with the power end of the microphone to be detected and is used for detecting the voltage of the power end of the microphone to be detected;
the voltage detection module is connected with the processor module, and the processor module is used for receiving the voltage, analyzing data based on the voltage and outputting the state of the microphone, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state;
the processor module is provided with a voltage comparison unit and an output unit, the voltage comparison unit is provided with a first voltage interval, a second voltage interval and a third voltage interval, the voltage comparison unit is connected with the voltage detection module and is used for analyzing the interval to which the voltage belongs and outputting an analysis result, and the output unit is connected with the voltage comparison unit and is used for outputting the state of the microphone according to the analysis result;
the voltage comparison unit analyzes that the voltage falls into a first voltage interval, the output unit outputs that the microphone is in a short circuit state, the voltage comparison unit analyzes that the voltage falls into a second voltage interval, the output unit outputs that the microphone is in a normal state, and the voltage comparison unit analyzes that the voltage falls into a third voltage interval, the output unit outputs that the microphone is in an open circuit state;
the microphone to be detected comprises an electrostatic protection circuit connected with the power supply end;
when the voltage falls into a first voltage interval, the output unit outputs that the microphone is in a short circuit state and prompts that a diode of the electrostatic protection circuit is broken down by static electricity;
when the voltage falls into the third voltage interval, the output unit outputs that the microphone is in an open circuit state and prompts that the microphone bonding pad is open.
2. A microphone fault detection system as claimed in claim 1, wherein: the first voltage interval is set as [0, V ], the second voltage interval is set as [ V1-V, V1+ V ], the third voltage interval is set as [ V2-V, V2], wherein V1 is the power supply end voltage of the microphone when the microphone works normally, V2 is the power supply voltage of the microphone, and V is the voltage deviation value.
3. A microphone fault detection system according to claim 1, wherein the voltage is a bias voltage.
4. A fault detection method employing the microphone fault detection system as claimed in any one of claims 1 to 3, comprising the steps of:
acquiring the voltage of a microphone power supply end;
and carrying out data analysis based on the voltage, and outputting the state of the microphone according to the data analysis result, wherein the state of the microphone comprises a normal state, a short circuit state and an open circuit state.
5. The fault detection method as claimed in claim 4, wherein data analysis is performed based on the voltage, and the state of the microphone is outputted according to the data analysis result, comprising the steps of:
presetting a first voltage interval, a second voltage interval and a third voltage interval;
judging the interval of the voltage;
when the voltage falls into a first voltage interval, the microphone is in a short circuit state, when the voltage falls into a second voltage interval, the microphone is in a normal state, and when the voltage falls into a third voltage interval, the microphone is in an open circuit state.
6. An electronic device comprising a microphone fault detection system as claimed in claim 4 or 5.
7. A storage medium having stored thereon a computer program, which when executed implements the fault detection method according to claim 4 or 5.
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