CN115052240A - Method and device for automatically detecting active sound box fault, computer equipment and storage medium - Google Patents
Method and device for automatically detecting active sound box fault, computer equipment 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
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- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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Abstract
The invention relates to a method, a device, computer equipment and a storage medium for automatically detecting active sound box faults, wherein the method comprises the following steps: s1, setting a standard audio file in the sound box in advance and storing the standard audio file; s2, the sound box is electrified and initialized to start, and a standard audio file is automatically played and recorded to obtain a test file; s3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value; s4, judging whether the difference value exceeds a set threshold value; and S5, if the difference value exceeds the set threshold value, giving a fault alarm. According to the invention, through automatic detection of the sound box, the fault of the sound box can be timely and effectively found, the efficiency is improved, and the labor cost of maintenance and detection personnel is saved.
Description
Technical Field
The invention relates to the technical field of active sound box fault detection, in particular to a method and a device for automatically detecting active sound box faults, computer equipment and a storage medium.
Background
The traditional active sound box has no automatic fault detection function, can only be listened by the ears of a person or detected by special equipment beside the sound box through manual work, and has the advantages of low accuracy, low efficiency, large workload and high cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method, a device, computer equipment and a storage medium for automatically detecting the fault of an active sound box.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, the present embodiment provides a method for automatically detecting a fault of an active speaker, including the following steps:
s1, setting a standard audio file in the sound box in advance and storing the standard audio file;
s2, starting the sound box after power-on initialization, automatically playing and recording the standard audio file to obtain a test file;
s3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
s4, judging whether the difference value exceeds a set threshold value;
and S5, if the difference value exceeds the set threshold value, giving a fault alarm.
The further technical scheme is as follows: in S1, a standard audio file is formed by playing an original audio file and automatically recording the original audio file when the sound box is initialized, and the standard audio file is stored inside the sound box.
The further technical scheme is as follows: after S4, the method further includes: and S6, if the difference value does not exceed the set threshold value, the sound box enters a normal standby state.
The further technical scheme is as follows: in S5, the fault warning includes flashing a sound box indicator light, sounding an alarm by a sound box, or sending a fault warning message to the user.
In a second aspect, the present embodiment provides an apparatus for automatically detecting a fault of an active speaker, including: the method comprises the steps of setting a storage unit, a playing and recording unit, a comparison unit, a judgment unit and an alarm unit;
the setting and storing unit is used for setting and storing a standard audio file in the sound box in advance;
the playing and recording unit is used for starting the sound box in an electrified initialization mode, automatically playing and recording a standard audio file to obtain a test file;
the comparison unit is used for comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
the judging unit is used for judging whether the difference value exceeds a set threshold value or not;
and the warning unit is used for giving fault warning if the difference value exceeds a set threshold value.
The further technical scheme is as follows: in the setting storage unit, a section of original audio file is played and automatically recorded when the sound box is initialized, so that a standard audio file is formed and stored in the sound box.
The further technical scheme is as follows: further comprising: and the standby unit is used for enabling the sound box to enter a normal standby state if the difference value does not exceed the set threshold value.
The further technical scheme is as follows: in the warning unit, the fault warning comprises that a sound box indicator lamp flickers, a sound box gives out alarm sound or sends out a fault warning short message to a user.
In a third aspect, the present embodiment provides a computer device, where the computer device includes a memory and a processor, where the memory stores a computer program, and the processor executes the computer program to implement the method for automatically detecting an active speaker failure as described above.
In a fourth aspect, the present embodiment provides a storage medium storing a computer program, the computer program comprising program instructions, which when executed by a processor, can implement the method for automatically detecting a failure of an active speaker as described above.
Compared with the prior art, the invention has the beneficial effects that: through the automatic detection of the sound box, the fault of the sound box can be timely and effectively found, the efficiency is improved, and the labor cost of maintenance and detection personnel is saved.
The invention is further described below with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a method for automatically detecting a fault of an active speaker according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of an apparatus for automatically detecting a fault of an active speaker according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of a computer device provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that 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. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to the specific embodiment shown in fig. 1, the present invention discloses a method for automatically detecting a fault of an active speaker, comprising the following steps:
s1, setting a standard audio file in the sound box in advance and storing the standard audio file;
in step S1, an original audio file is played and automatically recorded when the sound box is initialized, so as to form a standard audio file and store the standard audio file inside the sound box.
Specifically, the original audio file may be music or piano music or poetry or reciting, or the like. The method adopts a mode of playing and recording the original audio file, and the recording is finished when the playing is finished, so that the time is saved and the accuracy is high.
Before the step of S1, the method further includes: the alarm mobile phone number is set in advance in the sound box so as to receive the alarm short message at a later period.
S2, the sound box is electrified and initialized to start, and standard audio files are automatically played and recorded to obtain test files;
s3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
specifically, the waveform of the test file is compared with the waveform of the standard audio file, digital sampling processing (such as a sampling rate of 44.1kHZ, 16kHZ and the like) is adopted, then two audio sampling sequences are compared through a common audio comparison algorithm, and the correlation is calculated to obtain the similarity of two audio signals so as to obtain a difference value. And when the difference between the two exceeds 10%, judging that the sound box has a fault.
In particular, there are many audio comparison algorithms in the prior art. In consideration of practicability, convenience and simplicity, the method adopts a time-frequency analysis method to calculate the physical characteristic value of the audio file for correlation statistics. The method comprises the following specific steps:
1. preprocessing an audio file: performing digital sampling and forming a sequence frame;
2. extracting the zero crossing rate of the audio frame:
firstly, calculating and extracting an envelope sequence of an audio frame, and then extracting a zero crossing rate of the envelope sequence of the audio frame;
3. extracting MFCC (Mel-cepstral coefficient) coefficients for the audio frame:
carrying out FFT (fast Fourier transform) on each audio frame to obtain a frequency spectrum of each frame signal, and obtaining a magnitude spectrum of each audio frame according to the frequency spectrum; designing a group of Mel filters according to the parameters of the audio; obtaining the output of the filter, and taking the logarithm of the output; performing Discrete Cosine Transform (DCT) on the output in the last step to obtain an MFCC (Mel frequency cepstrum coefficient) coefficient, and finally forming an MFCC (Mel frequency cepstrum coefficient) coefficient sequence;
4. extracting a spectral centroid of the audio frame;
respectively carrying out Fourier transform on the M audio frames, and converting the M audio frames into a frequency domain to obtain M audio frame frequency spectrums; dividing each audio frame frequency spectrum into L sub-bands, and respectively calculating the mass centers of the frequency spectrum sub-bands; normalizing the mass centers of the frequency spectrum sub-bands to form a spectrum mass center sequence;
5. calculating a correlation function of the normalized spectrum centroid sequence;
respectively carrying out discrete Fourier transform on the two audio spectrum centroid sequences to obtain a sequence XA and a sequence XB; taking the conjugate of a sequence XA and multiplying the conjugate by a sequence XB element by element to obtain a sequence XC; carrying out inverse discrete Fourier transform on the sequence XC to obtain correlation function sequences of two paths of audios; reordering the correlation function sequence, taking out the second half part of the sequence and splicing the first half part of the sequence again to form a new correlation function sequence; carrying out normalization processing on the correlation function sequence and obtaining a maximum correlation coefficient;
6. calculating a correlation function of the audio time domain sequence;
solving the correlation function of the audio time domain sequence after preprocessing according to a method for calculating the correlation function of the normalized spectrum centroid sequence; carrying out normalization processing on the correlation function sequence and obtaining a maximum correlation coefficient;
7. calculating a correlation function of the zero-crossing rate sequence;
solving the correlation function of the zero-crossing rate sequence according to a method for calculating the correlation function of the normalized spectrum centroid sequence; carrying out normalization processing on the correlation function sequence and obtaining a maximum correlation coefficient;
8. calculating a correlation function of a MFCC (Mel frequency cepstral coefficient) coefficient sequence;
solving a correlation function of an MFCC (Mel cepstrum coefficient) coefficient sequence according to a method for calculating the correlation function of the normalized spectrum centroid sequence; carrying out normalization processing on the correlation function sequence, and solving the maximum correlation coefficient;
9. calculating an audio signal delay;
recording the maximum position and the midpoint position of a correlation function of a spectrum centroid sequence, a zero-crossing rate sequence and an MFCC (Mel frequency cepstrum coefficient) sequence; the difference value of the maximum position and the midpoint position of the correlation function is multiplied by the sampling frequency of the audio signal to obtain delay time, and the average value of the three delays is the signal delay time;
10. realigning the audio signal;
if the two paths of audio signals are delayed, cutting the delay time, realigning the two paths of signals, and executing the steps in 2-7 again; if the two paths of audio signals have no delay, directly executing the next step;
11. obtaining audio signal correlation coefficients;
and selecting a spectrum centroid correlation coefficient, a time domain correlation coefficient, a zero crossing rate correlation coefficient and an MFCC (Mel frequency cepstrum coefficient) correlation coefficient, and obtaining the correlation coefficient of the audio frequency in a weighting mode.
And judging whether the audio contents are consistent or not according to the set threshold value through the algorithm.
S4, judging whether the difference value exceeds a set threshold value;
in the present embodiment, the threshold is set to 8%, 10%, 15%, or the like.
And S5, if the difference value exceeds the set threshold value, making a fault alarm.
In step S5, the fault warning includes flashing a sound box indicator light, sounding an alarm through a sound box, or sending a fault warning message to the user.
And S6, if the difference value does not exceed the set threshold value, the sound box enters a normal standby state.
In the present embodiment, the fault includes the following conditions: the loudspeaker does not sound; abnormal sound production of the horn; the amplification module has faults, no output and no sound of a loudspeaker; the amplification module is in fault, the output waveform is abnormal, and the sound production of the loudspeaker is abnormal; the signal processing module has faults, no output and no sound of a loudspeaker; and the signal processing module has a fault, the output signal is abnormal, and the loudspeaker sounds abnormally.
After the step of S6, the method further includes: after the fault indicating lamp is turned on, the reset button is manually pressed, the fault alarm indication can be cancelled, and after the fault indicating lamp is turned off, the sound box enters a normal standby working state.
According to the invention, through automatic detection of the sound box, the fault of the sound box can be timely and effectively found, the efficiency is improved, the labor cost of maintenance and detection personnel is saved, the function of the sound box is increased, and the grade of the sound box is improved.
Referring to fig. 2, the present invention also discloses a device for automatically detecting a fault of an active speaker, including: setting a storage unit 10, a playing and recording unit 20, a comparison unit 30, a judgment unit 40 and an alarm unit 50;
the setting storage unit 10 is used for setting and storing a standard audio file in the sound box in advance;
the playing and recording unit 20 is used for initializing and starting the sound box to be powered on, automatically playing and recording a standard audio file to obtain a test file;
the comparison unit 30 is configured to compare the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
the judging unit 40 is configured to judge whether the difference value exceeds a set threshold;
and the warning unit 50 is configured to issue a fault warning if the difference value exceeds a set threshold.
In the setting storage unit 10, a section of original audio file is played and automatically recorded when the sound box is initialized, so as to form a standard audio file and store the standard audio file in the sound box.
Wherein, the device still includes: and a standby unit 60, configured to, if the difference value does not exceed the set threshold, enter a normal standby state.
In the warning unit 50, the fault warning includes flashing of a sound box indicator light, sounding of an alarm by a sound box, or sending a fault warning message to a user.
It should be noted that, as can be clearly understood by those skilled in the art, the specific implementation process of the above apparatus for automatically detecting a failure of an active speaker and each unit may refer to the corresponding description in the foregoing method embodiment, and for convenience and brevity of description, no further description is provided herein.
The above-mentioned means for automatically detecting a failure of an active speaker may be implemented in the form of a computer program, which may be run on a computer device as shown in fig. 3.
Referring to fig. 3, fig. 3 is a schematic block diagram of a computer device according to an embodiment of the present application; the computer device 500 may be a terminal or a server, where the terminal may be an electronic device with a communication function, such as a smart phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant, and a wearable device. The server may be an independent server or a server cluster composed of a plurality of servers.
Referring to fig. 3, the computer device 500 includes a processor 502, memory, and a network interface 505 connected by a system bus 501, where the memory may include a non-volatile storage medium 503 and an internal memory 504.
The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032 comprises program instructions that, when executed, cause the processor 502 to perform a method of automatically detecting an active speaker failure.
The processor 502 is used to provide computing and control capabilities to support the operation of the overall computer device 500.
The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503, and when the computer program 5032 is executed by the processor 502, the processor 502 can be enabled to perform a method for automatically detecting the failure of the active speaker.
The network interface 505 is used for network communication with other devices. Those skilled in the art will appreciate that the configuration shown in fig. 3 is a block diagram of only a portion of the configuration associated with the present application and does not constitute a limitation of the computer device 500 to which the present application may be applied, and that a particular computer device 500 may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
Wherein the processor 502 is configured to run the computer program 5032 stored in the memory to implement the following steps:
step S1, setting standard audio files in the sound box in advance and storing the files;
step S2, the sound box is electrified and initialized to start, and standard audio files are automatically played and recorded to obtain test files;
step S3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
step S4, judging whether the difference value exceeds a set threshold value;
step S5, if the difference value exceeds the set threshold value, a fault warning is given;
in step S6, if the difference value does not exceed the set threshold, the sound box enters a normal standby state.
It should be understood that in the embodiment of the present Application, the Processor 502 may be a Central Processing Unit (CPU), and the Processor 502 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be understood by those skilled in the art that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing associated hardware. The computer program includes program instructions, and the computer program may be stored in a storage medium, which is a computer-readable storage medium. The program instructions are executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, wherein the computer program comprises program instructions that, when executed by the processor, implement the above-described method of automatically detecting a malfunction of an active speaker. The storage medium stores a computer program comprising program instructions which, when executed by a processor, implement the method described above. The program instructions include the steps of:
step S1, setting a standard audio file in the sound box in advance and storing the standard audio file;
step S2, the sound box is electrified and initialized to start, and standard audio files are automatically played and recorded to obtain test files;
step S3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
step S4, judging whether the difference value exceeds a set threshold value;
step S5, if the difference value exceeds the set threshold value, a fault warning is given;
in step S6, if the difference value does not exceed the set threshold, the sound box enters a normal standby state.
The storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, which can store various computer readable storage media of program codes.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be merged, divided and deleted according to actual needs. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a terminal, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention.
The above embodiments are preferred implementations of the present invention, and besides, the present invention can be implemented in other ways, and any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.
Claims (10)
1. The method for automatically detecting the fault of the active sound box is characterized by comprising the following steps of:
s1, setting a standard audio file in the sound box in advance and storing the standard audio file;
s2, the sound box is electrified and initialized to start, and a standard audio file is automatically played and recorded to obtain a test file;
s3, comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
s4, judging whether the difference value exceeds a set threshold value;
and S5, if the difference value exceeds the set threshold value, giving a fault alarm.
2. The method for automatically detecting the malfunction of an active speaker as claimed in claim 1, wherein in S1, a standard audio file is formed and stored inside the speaker by playing an original audio file and automatically recording the original audio file when the speaker is initialized.
3. The method for automatically detecting the malfunction of an active speaker according to claim 1, further comprising, after the step S4: and S6, if the difference value does not exceed the set threshold value, the sound box enters a normal standby state.
4. The method according to claim 1, wherein in the step S5, the fault warning includes flashing a sound box indicator light, sounding an alarm through a sound box, or sending a fault warning message to a user.
5. Device of automated inspection active audio amplifier trouble, its characterized in that includes: the method comprises the steps of setting a storage unit, a playing and recording unit, a comparison unit, a judgment unit and an alarm unit;
the setting and storing unit is used for setting and storing a standard audio file in the sound box in advance;
the playing and recording unit is used for starting the sound box in an electrifying initialization mode, automatically playing and recording a standard audio file to obtain a test file;
the comparison unit is used for comparing the waveform of the test file with the waveform of the standard audio file to obtain a difference value;
the judging unit is used for judging whether the difference value exceeds a set threshold value or not;
and the warning unit is used for giving fault warning if the difference value exceeds a set threshold value.
6. The apparatus of claim 5, wherein the setting storage unit is configured to form a standard audio file by playing an original audio file and automatically recording the original audio file when the speaker is initialized, and store the standard audio file in the speaker.
7. The apparatus for automatically detecting malfunction of an active speaker according to claim 5, further comprising: and the standby unit is used for enabling the sound box to enter a normal standby state if the difference value does not exceed the set threshold value.
8. The apparatus according to claim 5, wherein the fault warning unit is configured to send a fault warning message to a user, and the fault warning message includes a flashing of a sound box indicator, a sound box sounding an alarm.
9. A computer device, characterized in that the computer device comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the method for automatically detecting a failure of an active speaker according to any one of claims 1 to 4.
10. A storage medium storing a computer program comprising program instructions which, when executed by a processor, implement the method of automatically detecting an active speaker failure according to any one of claims 1-4.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116866809A (en) * | 2023-07-18 | 2023-10-10 | 广东保伦电子股份有限公司 | Audio playing equipment fault detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116866809A (en) * | 2023-07-18 | 2023-10-10 | 广东保伦电子股份有限公司 | Audio playing equipment fault detection method |
| CN116866809B (en) * | 2023-07-18 | 2024-02-09 | 广东保伦电子股份有限公司 | Audio playing equipment fault detection method |
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