CN111343561B - Fault diagnosis method for sound system with display unit - Google Patents
Fault diagnosis method for sound system with display unit Download PDFInfo
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- CN111343561B CN111343561B CN202010234632.XA CN202010234632A CN111343561B CN 111343561 B CN111343561 B CN 111343561B CN 202010234632 A CN202010234632 A CN 202010234632A CN 111343561 B CN111343561 B CN 111343561B
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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
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The invention discloses a fault diagnosis method of a sound system with a display unit, wherein the fault diagnosis system comprises a disk diagnosis module, a battery diagnosis module, an audio acquisition module and a second processor, wherein the disk diagnosis module diagnoses fault information of a storage disk; the battery diagnosis module diagnoses fault information of the battery pack; the first processor is electrically connected with the second processor, and the disk diagnosis module, the battery diagnosis module and the audio acquisition module are respectively electrically connected with the second processor; the disk diagnosis module comprises an information acquisition unit and a first fault identification unit. The method and the device detect and diagnose whether the sound equipment has faults or not through operations such as air leakage detection, first audio acquisition and the like, not only effectively realize fault diagnosis of the sound equipment, effectively solve the problem that the sound equipment can only be manually and laboriously checked in the past, but also fill more fault blanks of the sound equipment, and provide powerful data basis for innovation improvement and design of the sound equipment in the future.
Description
Technical Field
The invention relates to the technical field of sound, in particular to a fault diagnosis method of a sound system with a display unit.
Background
Along with the increasing of living standard, the quality requirement of leisure life is higher and higher, and sound technology also becomes the key point of present scientific and technological development and product research and development, various sound equipment has been introduced on the market now, satisfies our demand through respectively different functions, and sound is established other tone quality and is higher and higher, and the auditory effect is better.
When the sound equipment is used more and more frequently, how to diagnose the problem of sound faults becomes the focus of attention of people, at present, when the sound equipment has faults, people generally use manpower to check and maintain the sound equipment, so that the sound equipment faults which cannot be judged by manpower are easily ignored, the manpower is consumed, and the use cost is increased.
In view of the above circumstances, a fault diagnosis system and a fault diagnosis method for an acoustic system are designed, which not only need to effectively implement fault troubleshooting of an acoustic system, but also can reduce a large amount of manpower, and are a problem to be solved urgently.
Disclosure of Invention
The present invention is directed to a method for diagnosing a fault in an audio system having a display unit, which solves the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a fault diagnosis system of a sound system comprises a storage disk, a battery pack, a loudspeaker and a first processor, wherein the storage disk and the battery pack are respectively and electrically connected with the first processor; the battery diagnosis module diagnoses fault information of the battery pack; the first processor is electrically connected with the second processor, and the disk diagnosis module, the battery diagnosis module and the audio acquisition module are respectively electrically connected with the second processor.
The invention carries on the fault diagnosis to the sound system, and has designed the diagnostic module of the magnetic disc, battery and second processor, carry on the rough detection to the storage magnetic disc, assembled battery through the first processor of the sound system itself at first, and reveal the trouble code obtained according to the detected data, the second processor carries on the further trouble shooting according to the trouble code; the battery diagnosis module is used for diagnosing whether the battery pack has faults or not; the disk diagnosis module is used for diagnosing whether the storage disk has faults or not; the audio acquisition module can gather the audio signal of stereo set during operation, and the second treater can carry out the analysis and carry out fault diagnosis according to the signal of gathering in the system.
The magnetic disk diagnosis module comprises an information acquisition unit and a first fault identification unit, wherein the information acquisition unit is electrically connected with the first fault identification unit, and the information acquisition unit, the first fault identification unit and the second processor are sequentially and electrically connected; the audio acquisition module comprises a first audio acquisition unit, a second audio acquisition unit and an audio processing unit, wherein the first audio acquisition unit and the second audio acquisition unit are respectively and electrically connected with the audio processing unit, and the audio processing unit is electrically connected with the second processor; the battery diagnosis module comprises a voltage detection unit, a current detection unit and a second fault identification unit, wherein the voltage detection unit and the current detection unit are respectively and electrically connected with the battery pack, the voltage detection unit and the current detection unit are respectively and electrically connected with the second fault identification unit, and the second fault identification unit is electrically connected with the second processor.
The information acquisition unit can acquire working state parameters in a magnetic disk; the first fault identification unit can confirm and identify faults according to the acquired state parameters; the audio processing unit can amplify and remove noise and the like of the audio signals acquired by the first audio acquisition unit and the second audio acquisition unit; the voltage detection unit and the current detection unit can be used for detecting data of the battery pack, and meanwhile, the second fault identification unit can judge and confirm faults of the battery pack according to the current data and the voltage data.
The second processor comprises a receiving unit, a comparison early warning unit, a storage unit and a display unit, the audio processing unit, the first fault identification unit and the second fault identification unit are respectively and electrically connected with the receiving unit, the comparison early warning unit comprises an audio comparison unit, a circuit warning unit and a fault early warning unit, the audio processing unit is electrically connected with the audio comparison unit, the first fault identification unit is electrically connected with the fault early warning unit, and the second fault identification unit is electrically connected with the circuit warning unit; the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the storage unit, and the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the display unit.
The receiving unit in the invention can receive various data information in the system; the comparison early warning unit can judge and early warn faults through steps of data comparison, data classification and the like, the display unit can display fault diagnosis results and detected data, and the storage unit can store collected data and analysis results, so that query and analysis can be conveniently carried out in the future.
The fault diagnosis system further comprises an air leakage detection device, the air leakage detection device comprises a pressure detector, the pressure detector detects the internal pressure value of the sound, and the pressure detector is electrically connected with the receiving unit; the second processor further comprises a pressure comparison unit, the receiving unit, the pressure comparison unit and the storage unit are electrically connected in sequence, and the receiving unit, the pressure comparison unit and the display unit are electrically connected in sequence.
A fault diagnosis method of an acoustic system, the diagnosis method comprising the steps of:
1) preparing a sound and fault diagnosis system;
2) the battery diagnosis module is operated;
3) running a disk diagnosis module;
4) audio acquisition for the first time;
5) acquiring audio for the second time;
6) detecting air leakage;
7) and (4) storing data.
The method comprises the steps of firstly, checking the integrity of various detection devices, preparing the sound equipment to be detected, checking the fault of the sound equipment to be detected through battery pack detection, storage disk detection, audio acquisition and comparison and air leakage detection, and analyzing and processing the fault through a detection result; the audio signal of stereo set when first audio acquisition and second audio acquisition will vibrate, the audio signal of stereo set when steady work compares with preset standard signal respectively, judges the fault area of stereo set according to the contrast result again.
The diagnostic method comprises the following steps:
1) preparing a sound and fault diagnosis system;
a) preparing a diagnosis system and checking whether the system can work normally;
b) transmitting the prepared audio to the sound equipment, and finishing the sound equipment preparation;
c) the first processor can carry out rough diagnosis on the operation conditions of the battery pack and the storage disk and transmit the acquired fault codes to the second processor;
d) the second processor outputs an instruction according to the received fault code, and if the received fault code shows that the battery pack is in fault, the step 2) is executed; if the received fault code shows that the storage disk is in fault, executing the step 3); if the fault code is displayed normally, executing the step 4);
2) the battery diagnosis module is operated;
a) the current detection unit and the voltage detection unit respectively collect the current and the voltage of the battery pack and transmit the collected current information and the collected voltage information to the second fault identification unit;
b) the second fault identification unit identifies and confirms faults, and if the second fault identification unit displays that the faults are insufficient in electric quantity, the step c) is executed, and if the second fault identification unit displays other fault reasons, the step d) is executed;
c) charging the sound equipment to be tested or replacing a battery pack, detecting whether the sound equipment can be normally started for use, and if the sound equipment can be normally started for use, finishing fault diagnosis;
d) the second fault identification unit respectively transmits the acquired current information and voltage information to the second processor, the receiving unit receives the information and transmits the information to the circuit alarm unit, and the circuit alarm unit judges whether the circuit has a fault and the type of the fault according to the received information and gives an alarm;
3) the disk diagnosis module operates:
a) before the disk diagnosis module runs, the information acquisition unit acquires state parameters of a plurality of groups of storage disks in normal working and transmits the state parameters to the first fault identification unit for storage, and the state parameters serve as comparison parameters;
b) the disk diagnosis module operates, and the information acquisition unit acquires all state parameters of the storage disk at the current moment in a set time period, transmits the state parameters to the first fault identification unit and confirms the fault; if the current fault is displayed, executing the step c); if the early warning fault is displayed, executing the step d);
c) the first fault identification unit transmits the acquired state parameters to the second processor; receiving unit state parameters of the second processor, and meanwhile, judging the fault type and giving an alarm by the fault early warning unit according to the received state parameters;
d) the first fault identification unit transmits the acquired state parameters to the second processor; a receiving unit of the second processor receives the state parameters, a fault early warning unit quantizes the acquired state parameters, natural time from the current moment is divided into a plurality of time periods according to fault time precision through the quantized state parameters, whether the storage disk fails in one time period is judged, and the obtained time range is used as early warning time and output early warning is carried out;
4) audio acquisition for the first time:
a) the method comprises the steps that vibration simulation is conducted on the sound to be tested, the sound to be tested is enabled to be in a sound insulation environment, a first audio acquisition unit is used for acquiring an audio signal of the sound to be tested, and the audio signal is transmitted to an audio processing unit;
b) the audio processing unit is used for carrying out amplification, digital-to-analog conversion and other processing on the audio signal of the sound equipment to be tested, removing impurity noise in the audio signal, transmitting the audio signal to the second processor, receiving the audio signal by the receiving unit of the second processor, comparing the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observing a comparison result;
c) if the difference of the comparison results is small, the sound to be tested passes the test; if the difference of the comparison results is larger, executing the step 5);
5) acquiring audio for the second time;
a) the method comprises the following steps that a sound to be tested is fixedly placed on a stable table board, the sound to be tested starts to work, a second acquisition unit respectively acquires audio signals played in the sound to be tested in different frequency bands within a certain time, and the acquired audio signals are transmitted to an audio processing unit;
b) the audio processing unit is used for carrying out amplification, digital-to-analog conversion and other processing on the audio signal of the sound equipment to be tested, removing impurity noise in the audio signal, transmitting the audio signal to the second processor, receiving the audio signal by the receiving unit of the second processor, comparing the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observing a comparison result;
c) if the difference of the comparison results is small, and the loudspeaker is confirmed to be normal, executing the step 6); if the difference of the comparison results is large, confirming the loudspeaker fault according to the comparison results, and carrying out maintenance and replacement on the loudspeaker;
6) detecting air leakage;
a) fixedly placing the sound to be tested on a horizontal desktop, starting the sound to be tested, and continuously inputting gas into the internal space of the secondary sound to be tested;
b) the pressure detector detects a pressure value in the sound equipment to be detected to obtain a pressure value, the pressure value is transmitted to the second processor, the receiving unit of the second processor receives the pressure value, and the pressure comparison unit compares the pressure value with a preset pressure value in the second processor;
c) if the pressure value is larger than the preset pressure value, the sound to be tested displays no air leakage and the normal operation is finished; if the pressure value is smaller than the preset pressure value, determining the fault reason, displaying and giving an alarm by the display unit when the sound to be detected leaks air;
7) data storage: and summarizing conclusion information and classification information in the whole fault diagnosis system, and storing the conclusion information and the classification information in a storage unit.
The method comprises the steps that firstly, a first processor is used for roughly detecting a battery pack and a storage disk to judge whether the battery pack or the storage disk has faults, if the battery pack has the faults, a battery diagnosis module is used for troubleshooting the fault problem of the battery pack of the sound equipment to be detected, and if the sound equipment to be detected has the faults due to the electric quantity exhaustion problem, the battery pack can be charged or replaced; if the storage disk fails, the disk diagnosis module is used for diagnosing the failure and judging the failure type of the storage disk, and meanwhile, the failure of the storage disk can be early warned, so that the method is effective and practical.
The method comprises the steps of carrying out first audio acquisition on a sound to be detected, simulating the vibration condition of the automobile during running, placing the sound to be detected in a sound insulation environment, more accurately simulating the audio playing condition of the sound to be detected during running of the automobile, carrying out signal amplification, digital-to-analog conversion and other operations on the acquired audio, immediately comparing a processed audio signal with a standard signal preset in a processor, and if the difference between the processed audio signal and the standard signal is in a smaller range, enabling a loudspeaker of the sound to be detected to have no fault; if the difference between the two is large, the loudspeaker of the sound equipment to be tested has faults, the design can classify the required sound equipment to be tested, and meanwhile, under the simulation situation, the audio playing condition of the sound equipment to be tested can be detected more clearly, so that the analysis and judgment of people are facilitated, and the method is effective and practical. The design of the sound insulation environment can isolate the influence of other noise noises on the diagnosis result, and the accuracy of the diagnosis result is improved.
The method comprises the steps of placing a sound to be tested on a stable desktop, carrying out second-time audio acquisition, comparing the acquired audio signal with a preset standard signal again, so that the situation that the sound is abnormal in different environments can be eliminated, and the fault situation of the sound can be judged according to the situation, wherein if the difference of the comparison result of the first-time audio acquisition is large, and the difference of the comparison result of the second-time audio acquisition is small, the possibility of the fault of the sound can be eliminated, and the vibration force borne by the sound is reduced by enhancing the effects of a buffer device and the like on an automobile, so that the problem of abnormal sound of the sound is solved; if the difference between the comparison results of the first audio acquisition and the second audio acquisition is large, the sound equipment can be determined to have a fault at the moment; the audio acquisition is carried out aiming at different frequency bands in the second audio acquisition, so that the diagnosis accuracy is improved, and more comprehensive data support is provided for the diagnosis result.
The method comprises the steps of detecting air leakage of the sound to be detected, continuously inputting air into the internal space of the sound to be detected, determining whether the sound has air leakage and other faults by detecting the pressure change value of the internal space, if the sound has air leakage, further checking the air leakage area of the sound, and processing the checked sound faults; generally when the air quantity that the stereo set inner space spilt is too much, it will influence the resonance effect of stereo set, and reduce the tone quality of stereo set, and whether the gas leakage condition appears in the stereo set can audio-visually be confirmed through the change of pressure value to the design like this, and the stereo set inside can also be designed into the inner space of a plurality of difference simultaneously, confirms gas leakage region through respective pressure change value, reasonable in design, effective practicality.
The air leakage detection operation can eliminate the conditions of audio playing noise, abnormal sound and the like caused by air leakage of the sound.
The invention also designs a storage unit which can be used for storing important information in the diagnosis process, so that reference and monitoring can be conveniently carried out next time; the processor may receive signals between the devices and operate according to our instructions.
Further, in the step 3), the status parameter includes at least one of an error rate of reading bottom layer data, a time of the motor reaching a normal rotation speed, a remapped sector count, an unrepairable error count, a head write height, and a temperature of the metering hard disk.
Further, in the step 4), the acquisition time of the first audio acquisition is 1-3 min; in the step 5), the acquisition time of the second audio acquisition is 3-5 min.
The acquisition time of the first audio acquisition is shorter than that of the second audio acquisition, and the first audio acquisition only can determine whether the sound has the possibility of failure or not in a general way, so that the time is shorter, the second audio acquisition needs to determine whether the sound has the failure or not, the time is slightly longer, the acquired audio is more accurate and fine, and the diagnosis result is more reasonable and accurate.
Further, in the step 4), the vibration frequency of the automobile during running can be simulated.
Further, in the step 6), the time for inputting the gas is 1 min.
Compared with the prior art, the invention has the beneficial effects that: when the battery pack fault diagnosis device is used, firstly, fault classification and identification are carried out through fault codes displayed by the first processor, the second processor receives the fault codes and outputs instructions, and meanwhile, the battery diagnosis module carries out fault diagnosis and confirmation on the battery pack; then the disk diagnosis module diagnoses the fault of the storage disk, and the second processor diagnoses the fault of the disk by the state parameter acquisition of the information acquisition unit and the fault comparison and confirmation of the first fault identification unit; then the first acquisition unit carries out first audio acquisition, the second acquisition unit carries out second audio acquisition, and fault diagnosis of the sound equipment is carried out by simulating the vibration condition of the automobile during running and comparing the vibration condition with the audio signal acquired when the sound equipment is in a working state; finally, the air leakage detection of the sound is carried out through the air leakage detection device, and whether the abnormal sound of the sound is caused by the fault of the air leakage of the sound is confirmed.
The invention designs a fault diagnosis system of a sound system and a diagnosis method thereof, which detect and diagnose whether the sound has faults or not through operations such as air leakage detection, first audio acquisition and the like.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Fig. 1 is an overall step diagram of a fault diagnosis system of a sound system and a diagnosis method thereof according to the present invention;
FIG. 2 is a block diagram of a fault diagnosis system and method for a sound system according to the present invention;
FIG. 3 is a schematic diagram of a battery diagnosis module of a fault diagnosis system and a diagnosis method of a sound system according to the present invention;
FIG. 4 is a schematic diagram of a disk diagnosis module of a fault diagnosis system and a diagnosis method of an audio system according to the present invention;
fig. 5 is a schematic diagram illustrating steps of a first audio acquisition and a second audio acquisition of a fault diagnosis system and a fault diagnosis method for a sound system according to the present invention;
FIG. 6 is a schematic diagram of the steps of air leakage detection in the fault diagnosis system and the diagnosis method of the sound system according to the present invention;
FIG. 7 is a block diagram of an audio acquisition module of a fault diagnosis system and a diagnosis method thereof for a sound system according to the present invention;
fig. 8 is a block diagram of a second processor of a fault diagnosis system and a fault diagnosis method for an audio system according to 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1 and 2, a fault diagnosis system of an audio system includes a storage disk, a battery pack, a speaker and a first processor, wherein the storage disk and the battery pack are electrically connected to the first processor respectively, the fault diagnosis system includes a disk diagnosis module, a battery diagnosis module, an audio acquisition module and a second processor, and the disk diagnosis module diagnoses fault information of the storage disk; the battery diagnosis module diagnoses fault information of the battery pack; the first processor is electrically connected with the second processor, and the disk diagnosis module, the battery diagnosis module and the audio acquisition module are respectively electrically connected with the second processor.
The invention carries on the fault diagnosis to the sound system, and has designed the diagnostic module of the magnetic disc, battery and second processor, carry on the rough detection to the storage magnetic disc, assembled battery through the first processor of the sound system itself at first, and reveal the trouble code obtained according to the detected data, the second processor carries on the further trouble shooting according to the trouble code; the battery diagnosis module is used for diagnosing whether the battery pack has faults or not; the disk diagnosis module is used for diagnosing whether the storage disk has faults or not; the audio acquisition module can gather the audio signal of stereo set during operation, and the second treater can carry out the analysis and carry out fault diagnosis according to the signal of gathering in the system.
As shown in fig. 1, fig. 3, fig. 4, and fig. 7, further, the disk diagnosis module includes an information acquisition unit and a first fault identification unit, the information acquisition unit is electrically connected to the first fault identification unit, and the information acquisition unit, the first fault identification unit, and the second processor are electrically connected in sequence; the audio acquisition module comprises a first audio acquisition unit, a second audio acquisition unit and an audio processing unit, wherein the first audio acquisition unit and the second audio acquisition unit are respectively and electrically connected with the audio processing unit, and the audio processing unit is electrically connected with the second processor; the battery diagnosis module comprises a voltage detection unit, a current detection unit and a second fault identification unit, wherein the voltage detection unit and the current detection unit are respectively and electrically connected with the battery pack, the voltage detection unit and the current detection unit are respectively and electrically connected with the second fault identification unit, and the second fault identification unit is electrically connected with the second processor.
The information acquisition unit can acquire working state parameters in a magnetic disk; the first fault identification unit can confirm and identify faults according to the acquired state parameters; the audio processing unit can amplify and remove noise and the like of the audio signals acquired by the first audio acquisition unit and the second audio acquisition unit; the voltage detection unit and the current detection unit can be used for detecting data of the battery pack, and meanwhile, the second fault identification unit can judge and confirm faults of the battery pack according to the current data and the voltage data.
As shown in fig. 8, further, the second processor includes a receiving unit, a comparison and early warning unit, a storage unit, and a display unit, the audio processing unit, the first fault identification unit, and the second fault identification unit are respectively electrically connected to the receiving unit, the comparison and early warning unit includes an audio comparison unit, a circuit alarm unit, and a fault early warning unit, the audio processing unit is electrically connected to the audio comparison unit, the first fault identification unit is electrically connected to the fault early warning unit, and the second fault identification unit is electrically connected to the circuit alarm unit; the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the storage unit, and the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the display unit.
The receiving unit in the invention can receive various data information in the system; the comparison early warning unit can judge and early warn faults through steps of data comparison, data classification and the like, the display unit can display fault diagnosis results and detected data, and the storage unit can store collected data and analysis results, so that query and analysis can be conveniently carried out in the future.
The fault diagnosis system further comprises an air leakage detection device, the air leakage detection device comprises a pressure detector, the pressure detector detects the internal pressure value of the sound, and the pressure detector is electrically connected with the receiving unit; the second processor further comprises a pressure comparison unit, the receiving unit, the pressure comparison unit and the storage unit are electrically connected in sequence, and the receiving unit, the pressure comparison unit and the display unit are electrically connected in sequence.
As shown in fig. 1, 5 and 6, a fault diagnosis method for an acoustic system includes the following steps:
1) preparing a sound and fault diagnosis system;
2) the battery diagnosis module is operated;
3) running a disk diagnosis module;
4) audio acquisition for the first time;
5) acquiring audio for the second time;
6) detecting air leakage;
7) and (4) storing data.
The method comprises the steps of firstly, checking the integrity of various detection devices, preparing the sound equipment to be detected, checking the fault of the sound equipment to be detected through battery pack detection, storage disk detection, audio acquisition and comparison and air leakage detection, and analyzing and processing the fault through a detection result; the audio signal of stereo set when first audio acquisition and second audio acquisition will vibrate, the audio signal of stereo set when steady work compares with preset standard signal respectively, judges the fault area of stereo set according to the contrast result again.
The diagnostic method comprises the following steps:
1) preparing a sound and fault diagnosis system;
a) preparing a diagnosis system and checking whether the system can work normally;
b) transmitting the prepared audio to the sound equipment, and finishing the sound equipment preparation;
c) the first processor can carry out rough diagnosis on the operation conditions of the battery pack and the storage disk and transmit the acquired fault codes to the second processor;
d) the second processor outputs an instruction according to the received fault code, and if the received fault code indicates that the battery pack is in fault, the step 2) is executed; if the received fault code shows that the storage disk is in fault, executing the step 3); if the fault code is displayed normally, executing the step 4);
2) the battery diagnosis module is operated;
a) the current detection unit and the voltage detection unit respectively collect the current and the voltage of the battery pack and transmit the collected current information and the collected voltage information to the second fault identification unit;
b) the second fault identification unit identifies and confirms faults, and if the second fault identification unit displays that the faults are insufficient in electric quantity, the step c) is executed, and if the second fault identification unit displays other fault reasons, the step d) is executed;
c) charging the sound equipment to be tested or replacing a battery pack, detecting whether the sound equipment can be normally started for use, and if the sound equipment can be normally started for use, finishing fault diagnosis;
d) the second fault identification unit respectively transmits the acquired current information and voltage information to the second processor, the receiving unit receives the information and transmits the information to the circuit alarm unit, and the circuit alarm unit judges whether the circuit has a fault and the type of the fault according to the received information and gives an alarm;
3) the disk diagnosis module operates:
a) before the disk diagnosis module runs, the information acquisition unit acquires state parameters of a plurality of groups of storage disks in normal working and transmits the state parameters to the first fault identification unit for storage, and the state parameters serve as comparison parameters;
b) the disk diagnosis module operates, and the information acquisition unit acquires all state parameters of the storage disk at the current moment in a set time period, transmits the state parameters to the first fault identification unit and confirms the fault; if the current fault is displayed, executing the step c); if the early warning fault is displayed, executing the step d);
c) the first fault identification unit transmits the acquired state parameters to the second processor; receiving unit state parameters of the second processor, and meanwhile, judging the fault type and giving an alarm by the fault early warning unit according to the received state parameters;
d) the first fault identification unit transmits the acquired state parameters to the second processor; a receiving unit of the second processor receives the state parameters, a fault early warning unit quantizes the acquired state parameters, natural time from the current moment is divided into a plurality of time periods according to fault time precision through the quantized state parameters, whether the storage disk fails in one time period is judged, and the obtained time range is used as early warning time and output early warning is carried out;
4) audio acquisition for the first time:
a) the method comprises the steps that vibration simulation is conducted on the sound to be tested, the sound to be tested is enabled to be in a sound insulation environment, a first audio acquisition unit is used for acquiring an audio signal of the sound to be tested, and the audio signal is transmitted to an audio processing unit;
b) the audio processing unit is used for carrying out amplification, digital-to-analog conversion and other processing on the audio signal of the sound equipment to be tested, removing impurity noise in the audio signal, transmitting the audio signal to the second processor, receiving the audio signal by the receiving unit of the second processor, comparing the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observing a comparison result;
c) if the difference of the comparison results is small, the sound to be tested passes the test; if the difference of the comparison results is larger, executing the step 5);
5) acquiring audio for the second time;
a) the method comprises the following steps that a sound to be tested is fixedly placed on a stable table board, the sound to be tested starts to work, a second acquisition unit respectively acquires audio signals played in the sound to be tested in different frequency bands within a certain time, and the acquired audio signals are transmitted to an audio processing unit;
b) the audio processing unit is used for carrying out amplification, digital-to-analog conversion and other processing on the audio signal of the sound equipment to be tested, removing impurity noise in the audio signal, transmitting the audio signal to the second processor, receiving the audio signal by the receiving unit of the second processor, comparing the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observing a comparison result;
c) if the difference of the comparison results is small, and the loudspeaker is confirmed to be normal, executing the step 6); if the difference of the comparison results is large, confirming the loudspeaker fault according to the comparison results, and carrying out maintenance and replacement on the loudspeaker;
6) detecting air leakage;
a) fixedly placing the sound to be tested on a horizontal desktop, starting the sound to be tested, and continuously inputting gas into the internal space of the secondary sound to be tested;
b) the pressure detector detects a pressure value in the sound equipment to be detected to obtain a pressure value, the pressure value is transmitted to the second processor, the receiving unit of the second processor receives the pressure value, and the pressure comparison unit compares the pressure value with a preset pressure value in the second processor;
c) if the pressure value is larger than the preset pressure value, the sound to be tested displays no air leakage and the normal operation is finished; if the pressure value is smaller than the preset pressure value, determining the fault reason, displaying and giving an alarm by the display unit when the sound to be detected leaks air;
7) data storage: and summarizing conclusion information and classification information in the whole fault diagnosis system, and storing the conclusion information and the classification information in a storage unit.
The method comprises the steps that firstly, a first processor is used for roughly detecting a battery pack and a storage disk to judge whether the battery pack or the storage disk has faults, if the battery pack has the faults, a battery diagnosis module is used for troubleshooting the fault problem of the battery pack of the sound equipment to be detected, and if the sound equipment to be detected has the faults due to the electric quantity exhaustion problem, the battery pack can be charged or replaced; if the storage disk fails, the disk diagnosis module is used for diagnosing the failure and judging the failure type of the storage disk, and meanwhile, the failure of the storage disk can be early warned, so that the method is effective and practical.
The method comprises the steps of carrying out first audio acquisition on a sound to be detected, simulating the vibration condition of the automobile during running, placing the sound to be detected in a sound insulation environment, more accurately simulating the audio playing condition of the sound to be detected during running of the automobile, carrying out signal amplification, digital-to-analog conversion and other operations on the acquired audio, immediately comparing a processed audio signal with a standard signal preset in a processor, and if the difference between the processed audio signal and the standard signal is in a smaller range, enabling a loudspeaker of the sound to be detected to have no fault; if the difference between the two is large, the loudspeaker of the sound equipment to be tested has faults, the design can classify the required sound equipment to be tested, and meanwhile, under the simulation situation, the audio playing condition of the sound equipment to be tested can be detected more clearly, so that the analysis and judgment of people are facilitated, and the method is effective and practical. The design of the sound insulation environment can isolate the influence of other noise noises on the diagnosis result, and the accuracy of the diagnosis result is improved.
The method comprises the steps of placing a sound to be tested on a stable desktop, carrying out second-time audio acquisition, comparing the acquired audio signal with a preset standard signal again, so that the situation that the sound is abnormal in different environments can be eliminated, and the fault situation of the sound can be judged according to the situation, wherein if the difference of the comparison result of the first-time audio acquisition is large, and the difference of the comparison result of the second-time audio acquisition is small, the possibility of the fault of the sound can be eliminated, and the vibration force borne by the sound is reduced by enhancing the effects of a buffer device and the like on an automobile, so that the problem of abnormal sound of the sound is solved; if the difference between the comparison results of the first audio acquisition and the second audio acquisition is large, the sound equipment can be determined to have a fault at the moment; the audio acquisition is carried out aiming at different frequency bands in the second audio acquisition, so that the diagnosis accuracy is improved, and more comprehensive data support is provided for the diagnosis result.
The method comprises the steps of detecting air leakage of the sound to be detected, continuously inputting air into the internal space of the sound to be detected, determining whether the sound has air leakage and other faults by detecting the pressure change value of the internal space, if the sound has air leakage, further checking the air leakage area of the sound, and processing the checked sound faults; generally when the air quantity that the stereo set inner space spilt is too much, it will influence the resonance effect of stereo set, and reduce the tone quality of stereo set, and whether the gas leakage condition appears in the stereo set can audio-visually be confirmed through the change of pressure value to the design like this, and the stereo set inside can also be designed into the inner space of a plurality of difference simultaneously, confirms gas leakage region through respective pressure change value, reasonable in design, effective practicality.
The air leakage detection operation can eliminate the conditions of audio playing noise, abnormal sound and the like caused by air leakage of the sound.
The invention also designs a storage unit which can be used for storing important information in the diagnosis process, so that reference and monitoring can be conveniently carried out next time; the processor may receive signals between the devices and operate according to our instructions.
In the step 3), the state parameter includes at least one of a bottom layer data reading error rate, a time of the motor reaching a normal rotation speed, a remapped sector count, an unrepairable error count, a magnetic head writing height and a temperature of the metering hard disk.
In the step 4), the acquisition time of the first audio acquisition is 1-3 min; in the step 5), the acquisition time of the second audio acquisition is 3-5 min.
The acquisition time of the first audio acquisition is shorter than that of the second audio acquisition, and the first audio acquisition only can determine whether the sound has the possibility of failure or not in a general way, so that the time is shorter, the second audio acquisition needs to determine whether the sound has the failure or not, the time is slightly longer, the acquired audio is more accurate and fine, and the diagnosis result is more reasonable and accurate.
The vibration frequency of the automobile during running can be simulated in the step 4).
In the step 6), the gas input time is 1 min.
When the battery pack fault diagnosis device is used, firstly, fault classification and identification are carried out through fault codes displayed by the first processor, the second processor receives the fault codes and outputs instructions, and meanwhile, the battery diagnosis module carries out fault diagnosis and confirmation on the battery pack; then the disk diagnosis module diagnoses the fault of the storage disk, and the second processor diagnoses the fault of the disk by the state parameter acquisition of the information acquisition unit and the fault comparison and confirmation of the first fault identification unit; then the first acquisition unit carries out first audio acquisition, the second acquisition unit carries out second audio acquisition, and fault diagnosis of the sound equipment is carried out by simulating the vibration condition of the automobile during running and comparing the vibration condition with the audio signal acquired when the sound equipment is in a working state; finally, the air leakage detection of the sound is carried out through the air leakage detection device, and whether the abnormal sound of the sound is caused by the fault of the air leakage of the sound is confirmed.
The invention designs a fault diagnosis system of a sound system and a diagnosis method thereof, which detect and diagnose whether the sound has faults or not through operations such as air leakage detection, first audio acquisition and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (1)
1. A failure diagnosis method of an acoustic system having a display unit, characterized in that: the diagnostic method comprises the following steps: 1) preparing a sound and fault diagnosis system; a) preparing a diagnosis system and checking whether the system can work normally; b) transmitting the prepared audio to the sound equipment, and finishing the sound equipment preparation; c) the first processor can carry out rough diagnosis on the operation conditions of the battery pack and the storage disk and transmit the acquired fault codes to the second processor; d) the second processor outputs an instruction according to the received fault code, and if the received fault code indicates that the battery pack is in fault, the step 2) is executed; if the received fault code shows that the storage disk is in fault, executing the step 3); if the fault code is displayed normally, executing the step 4); 2) the battery diagnosis module is operated; a) the current detection unit and the voltage detection unit respectively collect the current and the voltage of the battery pack and transmit the collected current information and the collected voltage information to the second fault identification unit; b) the second fault identification unit identifies and confirms faults, and if the second fault identification unit displays that the faults are insufficient in electric quantity, the step c) is executed, and if the second fault identification unit displays other fault reasons, the step d) is executed; c) charging the sound equipment to be tested or replacing a battery pack, detecting whether the sound equipment can be normally started for use, and if the sound equipment can be normally started for use, finishing fault diagnosis; d) the second fault identification unit respectively transmits the acquired current information and voltage information to the second processor, a receiving unit of the second processor receives the information and transmits the information to the circuit alarm unit, and the circuit alarm unit judges whether the circuit has a fault and the type of the fault according to the received information and gives an alarm; 3) running a disk diagnosis module; a) before the disk diagnosis module runs, the information acquisition unit acquires state parameters of a plurality of groups of storage disks in normal working and transmits the state parameters to the first fault identification unit for storage, and the state parameters serve as comparison parameters; b) the disk diagnosis module operates, and the information acquisition unit acquires all state parameters of the storage disk at the current moment in a set time period, transmits the state parameters to the first fault identification unit and confirms the fault; if the current fault is displayed, executing the step c); if the early warning fault is displayed, executing the step d); c) the first fault identification unit transmits the acquired state parameters to the second processor; a receiving unit of the second processor receives the state parameters, and meanwhile, a fault early warning unit judges the type of the fault according to the received state parameters and sends out an alarm; d) the first fault identification unit transmits the acquired state parameters to the second processor; a receiving unit of the second processor receives the state parameters, a fault early warning unit quantizes the acquired state parameters, natural time from the current moment is divided into a plurality of time periods according to fault time precision through the quantized state parameters, whether the storage disk fails in one time period is judged, and the obtained time range is used as early warning time and output early warning is carried out; 4) audio acquisition for the first time; a) the method comprises the steps that vibration simulation is conducted on a sound to be tested, the sound to be tested is enabled to be in a sound insulation environment, a first audio acquisition unit acquires an audio signal of the sound to be tested, and the audio signal is transmitted to an audio processing unit; b) the audio processing unit amplifies and converts the audio signal of the sound equipment to be tested, removes impurity noise in the audio signal, transmits the audio signal to the second processor, the receiving unit of the second processor receives the audio signal, compares the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observes the comparison result; c) comparing according to the comparison result, and finishing if the sound to be tested passes the test; if the sound to be tested does not pass the test, executing the step 5); 5) acquiring audio for the second time; a) the method comprises the following steps that a sound to be tested is fixedly placed on a stable table board, the sound to be tested starts to work, a second acquisition unit respectively acquires audio signals played in the sound to be tested in different frequency bands within a certain time, and the acquired audio signals are transmitted to an audio processing unit; b) the audio processing unit amplifies and converts the audio signal of the sound equipment to be tested, removes impurity noise in the audio signal, transmits the audio signal to the second processor, the receiving unit of the second processor receives the audio signal, compares the audio signal with the audio signal preset in the second processor by the audio comparison unit, and observes the comparison result; c) comparing according to the comparison result, and if the loudspeaker is normal, executing the step 6); if the loudspeaker is in fault, the loudspeaker is overhauled and replaced; 6) detecting air leakage; a) fixedly placing the sound to be tested on a horizontal desktop, starting the sound to be tested, and continuously inputting gas into the internal space of the secondary sound to be tested; b) the pressure detector detects a pressure value in the sound equipment to be detected to obtain a pressure value, the pressure value is transmitted to the second processor, the receiving unit of the second processor receives the pressure value, and the pressure comparison unit compares the pressure value with a preset pressure value in the second processor; c) if the pressure value is larger than the preset pressure value, the sound to be tested displays no air leakage and the normal operation is finished; if the pressure value is smaller than the preset pressure value, determining the fault reason, displaying and giving an alarm by the display unit when the sound to be detected leaks air; 7) data storage: summarizing conclusion information and classification information in the whole fault diagnosis system, and storing the conclusion information and the classification information in a storage unit; the sound system comprises a storage disk, a battery pack, a loudspeaker and a first processor, wherein the storage disk and the battery pack are respectively electrically connected with the first processor; the battery diagnosis module diagnoses fault information of the battery pack; the first processor is electrically connected with the second processor, and the disk diagnosis module, the battery diagnosis module and the audio acquisition module are respectively electrically connected with the second processor; the magnetic disk diagnosis module comprises an information acquisition unit and a first fault identification unit, wherein the information acquisition unit is electrically connected with the first fault identification unit, and the information acquisition unit, the first fault identification unit and the second processor are sequentially and electrically connected; the audio acquisition module comprises a first audio acquisition unit, a second audio acquisition unit and an audio processing unit, wherein the first audio acquisition unit and the second audio acquisition unit are respectively and electrically connected with the audio processing unit, and the audio processing unit is electrically connected with the second processor; the battery diagnosis module comprises a voltage detection unit, a current detection unit and a second fault identification unit, wherein the voltage detection unit and the current detection unit are respectively and electrically connected with the battery pack, the voltage detection unit and the current detection unit are respectively and electrically connected with the second fault identification unit, and the second fault identification unit is electrically connected with the second processor; the second processor comprises a receiving unit, a comparison early warning unit, a storage unit and a display unit, the audio processing unit, the first fault identification unit and the second fault identification unit are respectively and electrically connected with the receiving unit, the comparison early warning unit comprises an audio comparison unit, a circuit warning unit and a fault early warning unit, the audio processing unit is electrically connected with the audio comparison unit, the first fault identification unit is electrically connected with the fault early warning unit, and the second fault identification unit is electrically connected with the circuit warning unit; the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the storage unit, and the audio frequency comparison unit, the circuit alarm unit and the fault early warning unit are respectively electrically connected with the display unit; the fault diagnosis system further comprises an air leakage detection device, the air leakage detection device comprises a pressure detector, the pressure detector detects the internal pressure value of the sound, and the pressure detector is electrically connected with the receiving unit; the second processor also comprises a pressure comparison unit, the receiving unit, the pressure comparison unit and the storage unit are electrically connected in sequence, and the receiving unit, the pressure comparison unit and the display unit are electrically connected in sequence; in the step 4), the acquisition time of the first audio acquisition is 1-3 min; in the step 5), the acquisition time of the second audio acquisition is 3-5 min; and 4) simulating the vibration frequency of the automobile in the step 4).
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| CN109698998B (en) | 2020-04-24 |
| CN111432322B (en) | 2021-06-15 |
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