CN113464272B - Method and system for monitoring state of component to be tested, vehicle and computer storage medium - Google Patents
Method and system for monitoring state of component to be tested, vehicle and computer storage medium Download PDFInfo
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- CN113464272B CN113464272B CN202110742182.XA CN202110742182A CN113464272B CN 113464272 B CN113464272 B CN 113464272B CN 202110742182 A CN202110742182 A CN 202110742182A CN 113464272 B CN113464272 B CN 113464272B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The invention provides a method and a system for monitoring the state of a component to be tested, a vehicle and a computer storage medium, wherein the method for monitoring the state of the component to be tested comprises the following steps: monitoring noise information and vibration information generated by a component to be detected in the working process; judging whether the working state of the component to be detected is abnormal or not based on the monitored noise information and the vibration information; and when the working state of the component to be detected is abnormal, giving an alarm. According to the state monitoring method of the component to be detected, whether the component to be detected breaks down or not is judged by analyzing noise information and vibration information generated in the working process of the component to be detected in real time, so that the monitoring method is more convenient and flexible.
Description
Technical Field
The application belongs to the technical field of automobile noise vibration, and particularly relates to a state monitoring method and system for a component to be detected, a vehicle and a computer storage medium.
Background
In the process of high-speed rotation of the turbocharger, due to the interaction of a turbine and high-speed airflow, imbalance between rotors, poor lubrication between bearings and other factors, supercharger noise can be generated, the noise can enter a vehicle through a gap of the vehicle body, the source of abnormal noise is difficult to judge by hearing, and the reason for generating the noise cannot be analyzed.
In addition, in order to monitor whether the turbocharger on the automobile has abnormal sound in the working process, the existing method is to carry out vibration noise test on the turbocharger product in a manufacturing factory or carry out vibration noise abnormal test on the turbocharger on an engine or the whole automobile by adopting test equipment, so that the test is very troublesome, and the real-time monitoring in the working process of the turbocharger cannot be realized.
Disclosure of Invention
The present invention is directed to solving or improving at least one of the above technical problems.
According to a first aspect of the present invention, there is provided a method of monitoring a condition of a component under test.
According to a second aspect of the present invention, there is provided a condition monitoring system for a component under test.
According to a third aspect of the invention, there is provided a vehicle.
According to a fourth aspect of the present invention, there is provided a storage medium.
The technical scheme of the first aspect of the invention provides a method for monitoring the state of a component to be tested, which comprises the following steps: monitoring noise information and vibration information generated by a component to be detected in the working process; judging whether the working state of the component to be detected is abnormal or not based on the monitored noise information and the vibration information; and when the working state of the component to be detected is abnormal, giving an alarm.
The state monitoring method of the part to be tested can be used for state monitoring of the part such as turbocharging of the vehicle. In the monitoring, a corresponding microphone, acceleration sensor, and the like can be directly mounted on a product used for a component such as a turbocharger to monitor noise information and vibration information of the component such as the turbocharger. And then, whether the working state of the component to be detected is abnormal or not is judged by monitoring noise information and vibration information generated by the component to be detected in the working process and according to the monitored noise information and vibration information. According to the method, the noise information and the vibration information generated by the part to be monitored in the working process are monitored in real time, whether the current working state of the part to be monitored is abnormal or not can be immediately judged according to the monitored noise information and vibration information, the part to be monitored does not need to be detached and monitored by a specific monitoring machine in the monitoring process, and whether the part to be monitored fails or not can be judged by analyzing the noise information and the vibration information generated in the working process in real time when the part to be monitored works, so that the monitoring method is more convenient and flexible. In addition, in the technical scheme, when the abnormal working state of the component to be detected is monitored, the alarm prompt can be given immediately, so that people can receive the abnormal information of the component to be detected conveniently at the first time, and the damage caused by the long-time abnormal working state of the component to be detected is avoided.
In the above scheme, the step of determining the working state of the to-be-measured component based on the monitored noise information and vibration information specifically includes: forming a noise spectrogram based on the noise information; forming a vibration map based on the vibration information; extracting noise characteristic information and vibration characteristic information of the component to be detected according to the noise frequency spectrogram and the vibration spectrogram, comparing the extracted noise characteristic information and vibration characteristic information with corresponding preset noise characteristic information and preset vibration characteristic information, and determining whether the working state of the component to be detected is abnormal or not according to the comparison result.
According to the technical scheme, when the working state of the component to be detected is judged according to the monitored noise information and vibration information, a noise frequency spectrum graph is generated through the noise information, a vibration graph is generated through the vibration information, then the current noise characteristic information of the component to be detected is determined according to the noise frequency spectrum graph, the current vibration characteristic information of the component to be detected is determined according to the vibration graph, and whether the working state of the component to be detected is abnormal or not can be judged by comparing the current noise characteristic information and the vibration characteristic information with the corresponding preset noise characteristic information and preset vibration characteristic information. Specifically, for example, it may be determined whether the noise amplitude of the component to be tested is within a normal range, and the working state of the component to be tested may be determined by determining characteristic information such as whether the vibration waveform is abnormal. In the scheme, the current noise characteristic information and the current vibration characteristic information are directly compared with the corresponding noise preset characteristic information and the vibration preset characteristic information respectively, so that some complex monitoring steps in the prior art are saved, and the method is quicker and more accurate in the monitoring process. In addition, different preset characteristic information can be set according to different types of components to be detected, so that the monitoring method can be suitable for various components, and the applicability of the method is improved.
In the above technical scheme, according to noise frequency spectrogram, vibration map extraction to be measured the noise characteristic information and the vibration characteristic information of part, predetermine the characteristic information and the vibration to compare with the noise that corresponds noise characteristic information and the vibration that will extract to confirm according to the comparative result and judge whether the operating condition of part to be measured is unusual, include: acquiring a preset vibration acceleration interval and a preset noise frequency interval; determining the current noise frequency of the component to be detected in the working process according to the noise spectrogram; determining the current vibration acceleration of the part to be detected in the working process according to the vibration diagram; the current noise frequency is in presetting the noise frequency interval, and when current vibration acceleration was in presetting vibration acceleration interval, confirms that the operating condition of the part that awaits measuring is normal, and current noise frequency is not when presetting noise frequency interval and/or current vibration acceleration is not in presetting vibration acceleration interval, confirms that the operating condition of the part that awaits measuring is unusual.
In the technical scheme, a preset vibration acceleration interval and a preset noise frequency interval are set, whether the current vibration acceleration and the current noise frequency of a part to be detected in the working process are both in the corresponding preset vibration acceleration interval and the corresponding preset noise frequency interval is analyzed, if the current vibration acceleration and the current noise frequency are both in the intervals, the working state of the part to be detected is judged to be normal, if one of the vibration acceleration and the current noise frequency is not in the corresponding interval, the working state of the part to be detected is judged to be abnormal, the working state of the part to be detected can be more accurately analyzed by the method, in addition, according to the method, the reason of generating faults can be further analyzed by measuring the current vibration acceleration and the current noise frequency of the part to be detected in the working process, namely, the numerical value of the vibration acceleration or the noise frequency can be further determined to determine the reason of the faults, for example, in the process of monitoring the supercharger by the method, when pressure surface and suction surface pressure difference of the blade produces pressure end BPF (blade passing frequency) noise, the noise frequency analyzed on the noise spectrogram is generally 2 k-60 kHz, and when the sub-synchronous noise produced by oil film whirl and oil film oscillation is caused by nonlinear oil film force action of a rotor-bearing system, the noise frequency analyzed on the noise spectrogram is generally less than 1.1kHz, therefore, whether the working state of the part to be tested is abnormal can be judged through the current vibration acceleration and the current noise frequency, and when the working state is abnormal, the reason for producing the fault can be analyzed according to specific numerical values.
In the above technical scheme, according to noise frequency spectrogram, vibration map extraction to be measured the noise characteristic information and the vibration characteristic information of part, predetermine the characteristic information and the vibration to compare with the noise that corresponds noise characteristic information and the vibration that will extract to confirm according to the comparative result and judge whether the operating condition of part to be measured is unusual, include: acquiring abnormal image characteristics of a noise spectrogram of a component to be detected in an abnormal state; displaying the noise spectrogram; and carrying out screen interception on the displayed noise spectrogram, monitoring whether abnormal image features exist in the intercepted screen image, determining that the working state of the component to be detected is abnormal when the abnormal image features exist in the intercepted screen image, and determining that the working state of the component to be detected is normal when the abnormal image features do not exist in the intercepted screen image.
According to the technical scheme, the abnormal image characteristics of the to-be-detected component in the noise spectrogram in the abnormal state can be determined in advance through an early-stage experiment. When the working state of the component to be detected is monitored at a later stage, a noise frequency spectrogram and a vibration chart can be generated according to noise and vibration of the component to be detected, which are monitored by a microphone, an acceleration sensor and the like, the noise frequency spectrogram and the vibration chart are displayed through a screen, a displayed image is captured in the display process of the noise frequency spectrogram and the vibration chart, and whether abnormal image characteristics exist in the captured image is checked, so that whether the working state of the component to be detected is abnormal is judged. In the scheme, a noise spectrogram is displayed; so that the worker can more intuitively see the noise spectrogram corresponding to the noise information sent by the component to be tested, and can conveniently know the noise condition of the component to be tested in real time, and the mode of judging whether the working state is abnormal or not by image comparison makes up the blank that some faults can not be monitored by numerical comparison analysis, for example, when abnormal sound of a supercharger in a vehicle is monitored, when air leaks from a rubber pipe of the supercharger and air leakage noise is generated, the noise frequency displayed in the noise spectrogram conforms to the frequency range of the supercharger in the normal working state, at this time, the failure of the supercharger cannot be monitored by a frequency data comparison method, but the frequency spectrum characteristic is a wide frequency according to the frequency spectrum image, therefore, the air leakage of the rubber feeding pipe of the supercharger can be judged, and therefore more types of fault reasons can be further judged through the analysis of the image.
In the above scheme, the part to be measured is a turbocharger of a vehicle, and the step of monitoring noise information and vibration information generated by the part to be measured in the working process comprises: arranging an acceleration sensor on a vehicle to acquire vibration information of the turbocharger through the acceleration sensor; arranging a microphone on the vehicle to collect noise information of the turbocharger through the microphone; and acquiring and collecting vibration information acquired by the acceleration sensor and noise information acquired by the microphone through the data acquisition unit.
In the technical scheme, the part to be tested is a turbocharger of the vehicle, so that the working state of the turbocharger of the vehicle can be monitored based on the method. Specifically, in order to monitor the working state of the turbocharger, an acceleration sensor can be arranged on the vehicle to acquire vibration information of the turbocharger in real time; set up the microphone on the vehicle, come real-time acquisition turbo charger's noise information to acquire and collect vibration information and noise information through the data acquisition unit, make the vehicle can be at the in-process real-time supervision turbo charger's of driving operating condition, and when the noise takes place, the reason that the noise takes place is confirmed that can be quick, consequently maintenance that can be timely avoids causing the accident.
In the technical scheme, when the working state of the component to be tested is abnormal, a fault report is generated, wherein the fault report at least comprises a noise spectrogram and a vibration chart.
In the technical scheme, when the working state of the component to be tested is abnormal, a fault report can be generated, and in order to facilitate the viewing of driving, the fault report can be presented in the form of an image, so that the solution can be taken in time when the supercharger breaks down, the fault report at least comprises a noise spectrogram and a vibration chart, so that the noise spectrogram and the vibration chart can be viewed to analyze the fault reason when the supercharger breaks down, and in addition, the fault report can also comprise fault time, the model of the component to be tested and one or more items of basic information of a vehicle according to needs, so that when the component to be tested is maintained in a later period, a maintenance worker and the like can further determine the time when the component to be tested breaks down, the model of the component to be tested and the like according to the fault report. In addition, in order to repair in time, a solution can be provided on the fault report, namely, different solutions are generated according to different fault types, so that maintenance personnel and the like can quickly select a proper solution to solve the fault.
A technical solution of a second aspect of the present application provides a system for monitoring a state of a component to be tested, including: the acceleration sensor is used for acquiring vibration information of the component to be detected; the microphone is used for acquiring noise information of the component to be detected; the alarm prompting device is used for giving an alarm prompt when the working state of the component to be tested is abnormal; the processor comprises a memory and a processing unit, wherein the memory stores executable instructions, and the processor implements the steps of the state monitoring method for the component to be detected provided by any technical scheme of the first aspect of the application when executing the executable instructions stored in the memory.
According to the state monitoring system of the part to be monitored, the part to be monitored in the working state can be monitored in real time, whether the working state of the part to be monitored is abnormal or not can be judged according to the monitored noise information and vibration information, the system enables the part to be monitored without dismounting the part to be monitored and adopting a specific monitoring machine for monitoring in the monitoring process, and whether the part to be monitored fails or not can be judged by analyzing the noise information and the vibration information generated in the working process in real time when the part to be monitored works, so that the monitoring method is more convenient and flexible. In addition, in the technical scheme, when the abnormal working state of the component to be detected is monitored, the alarm prompt can be given immediately, so that people can receive the abnormal information of the component to be detected conveniently at the first time, and the damage caused by the long-time abnormal working state of the component to be detected is avoided.
In the above solution, the state monitoring system for the component to be tested further includes: and the display is used for displaying information, and the information displayed by the display comprises a noise spectrogram and a vibration spectrogram.
In the technical scheme, a noise spectrogram and a vibration chart are displayed; the noise spectrogram corresponding to the noise information sent by the component to be tested can be seen more visually by a worker, and people can conveniently know the noise condition of the component to be tested in real time.
An aspect of the third aspect of the present application provides a vehicle, including: a turbocharger; the acceleration sensor is used for acquiring vibration information of the turbocharger; the microphone is used for acquiring noise information of the turbocharger; the alarm prompting device is used for giving an alarm prompt when the working state of the turbocharger is abnormal; the processor includes a memory and a processing unit, the memory stores executable instructions, and the processor implements the steps of the state monitoring method provided in any one of the technical solutions of the first aspect of the present application when executing the executable instructions stored in the memory.
The vehicle provided by the invention comprises a turbocharger, an acceleration sensor, a microphone and an alarm prompting device, wherein the sensor is used for acquiring vibration information of the turbocharger; the microphone is used for collecting noise information of the turbocharger, whether the working state of the turbocharger is abnormal or not can be judged through the collected vibration information and the collected noise information, and when the working state of the turbocharger is abnormal, the alarm prompting device gives an alarm prompt. In addition, the vehicle provided by the invention further comprises a processor, the processor comprises a memory and a processing unit, executable instructions are stored in the memory, and the step of the state monitoring method for the component to be detected in any technical scheme of the first aspect of the application is realized when the processor executes the executable instructions stored in the memory, so that the vehicle provided by the invention can monitor the turbocharger in a working state in real time. Therefore, the vehicle provided by the application can execute the monitoring method of any one of the technical schemes of the first aspect of the application. Therefore, the vehicle provided by the invention has all the advantages of any technical scheme of the first aspect of the application.
An aspect of the fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed, the steps of the monitoring method according to any one of the aspects of the present application are implemented.
According to the computer-readable storage medium provided by the present invention, a computer program needs to be stored in the computer-readable storage medium, which ensures that the computer program can be executed by the processor, so as to implement the monitoring method, and the working state of the component to be monitored can be rapidly monitored.
Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of embodiments according to the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a flow diagram of a method for condition monitoring of a component under test according to one embodiment of the present invention;
FIG. 2 illustrates a flow diagram of a method for condition monitoring of a component under test according to yet another embodiment of the present invention;
FIG. 3 illustrates a flow diagram of a method for condition monitoring of a component under test according to yet another embodiment of the present invention;
FIG. 4 is a flow chart illustrating a method for monitoring the condition of a component under test according to yet another embodiment of the present invention;
FIG. 5 illustrates a block diagram of a component under test condition monitoring system according to an embodiment of the present invention;
FIG. 6 illustrates a block diagram of a vehicle provided by an embodiment of the present invention;
FIG. 7 is a block diagram of a processor in a component under test condition monitoring system according to an embodiment of the invention.
The correspondence between the part names and the reference numbers in fig. 5 to 7 is as follows:
the device comprises a 10 acceleration sensor, a 20 microphone, a 30 alarm prompting device, a 40 turbocharger, a 50 display, a 60 to-be-tested component, a 70 processor, a 701 central processing unit, a 702 read-only memory, a 703 random access memory, a 704 bus, a 705 input/output interface, a 706 input unit, a 707 output unit, a 708 storage unit and a 709 communication unit.
Detailed Description
In order that the above aspects, features and advantages of the embodiments according to the present invention can be more clearly understood, embodiments according to the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments according to the invention, however, embodiments according to the invention may be practiced in other ways than those described herein, and therefore the scope of embodiments according to the invention is not limited by the specific embodiments disclosed below.
A state monitoring method, a system, a vehicle, and a storage medium of a component under test according to some embodiments of the present invention are described below with reference to fig. 1 to 7.
Fig. 1 is a schematic flow chart illustrating a method for monitoring a device under test according to an embodiment of the present invention. Wherein the process comprises the following steps:
s101: monitoring noise information and vibration information generated by a component to be detected in the working process;
s102: judging whether the working state of the component to be detected is abnormal or not based on the monitored noise information and the vibration information;
s103: and when the working state of the component to be detected is abnormal, giving an alarm.
The monitoring method provided by the embodiment can be used for monitoring the states of components such as the turbocharging of the vehicle. In the monitoring, a corresponding microphone, acceleration sensor, and the like can be directly mounted on a product used for a component such as a turbocharger to monitor noise information and vibration information of the component such as the turbocharger. And then, whether the working state of the component to be detected is abnormal or not is judged by monitoring noise information and vibration information generated by the component to be detected in the working process and according to the monitored noise information and vibration information. According to the method, the noise information and the vibration information generated by the part to be detected in the working process are monitored in real time, whether the current working state of the part to be detected is abnormal or not can be immediately judged according to the monitored noise information and vibration information, the part to be detected does not need to be detached and monitored by a specific monitoring machine in the monitoring process, and whether the part to be detected breaks down or not can be judged by analyzing the noise information and the vibration information generated in the working process in real time when the part to be detected works, so that the monitoring method is more convenient and flexible. In addition, in the embodiment, when the abnormal working state of the component to be detected is monitored, an alarm prompt can be given immediately, so that people can receive the abnormal information of the component to be detected conveniently in the first time, and the damage of the component to be detected caused by the long-time abnormal working state is avoided.
Fig. 2 is a schematic flow chart of a monitoring method for a device under test according to another embodiment of the present invention. Wherein the process comprises the following steps:
s201: monitoring noise information and vibration information generated by a component to be detected in the working process;
s202: forming a noise spectrogram based on the noise information;
s203: forming a vibration map based on the vibration information;
s204: extracting noise characteristic information and vibration characteristic information of the component to be detected according to the noise frequency spectrogram and the vibration spectrogram, comparing the extracted noise characteristic information and vibration characteristic information with corresponding preset noise characteristic information and preset vibration characteristic information, and determining whether the working state of the component to be detected is abnormal or not according to the comparison result.
In the embodiment, the current noise characteristic information and the current vibration characteristic information are directly compared with the corresponding noise preset characteristic information and the vibration preset characteristic information respectively, so that some complex monitoring steps in the prior art are saved, and the method can be more rapid and accurate in the monitoring process. In addition, different preset characteristic information can be set according to different types of components to be detected, so that the monitoring method can be suitable for various components to be detected, and the applicability of the method is improved.
Fig. 3 is a schematic flow chart of a monitoring method for a dut according to another embodiment of the present invention. Wherein the process comprises the following steps:
s301: monitoring noise information and vibration information generated by a component to be detected in the working process;
s302: forming a noise spectrogram based on the noise information;
s303: forming a vibration map based on the vibration information;
s304: acquiring a preset vibration acceleration interval and a preset noise frequency interval;
s305: determining the current noise frequency of the component to be detected in the working process according to the noise spectrogram; determining the current vibration acceleration of the part to be detected in the working process according to the vibration diagram;
s306: and judging whether the current noise frequency and the current vibration acceleration are both in the corresponding preset noise frequency interval and preset vibration acceleration interval. And if the current noise frequency and the current vibration acceleration are both in the corresponding preset noise frequency interval and the corresponding preset vibration acceleration interval, turning to S307. If one of the current noise frequency and the current vibration acceleration is not in the corresponding preset noise frequency interval and the preset vibration acceleration interval, turning to S308;
s307: determining that the working state of the component to be tested is normal;
s308: and determining the working state of the component to be tested as abnormal.
In this embodiment, a preset vibration acceleration interval and a preset noise frequency interval are set, whether the current vibration acceleration and the current noise frequency of the component to be detected in the working process are both in the corresponding preset vibration acceleration interval and the corresponding preset noise frequency interval is analyzed, if both are in the interval, the working state of the component to be detected is determined to be normal, and if one is not in the corresponding interval, the working state of the component to be detected is determined to be abnormal.
Fig. 4 is a schematic flow chart of a monitoring method for a device under test according to another embodiment of the present invention. Wherein the process comprises the following steps:
s401: monitoring noise information and vibration information generated by a component to be detected in the working process;
s402: forming a noise spectrogram based on the noise information;
s403: acquiring abnormal image characteristics of a noise spectrogram of a component to be detected in an abnormal state;
s404: displaying the noise spectrogram and carrying out screen capture on the displayed noise spectrogram;
s405: and judging whether the intercepted screen image has abnormal image features, and turning to S407 when the intercepted image has the abnormal image features. And when the abnormal image features do not exist in the intercepted picture, turning to S406.
S406: determining that the working state of the component to be tested is normal;
s407: and determining the working state of the component to be tested as abnormal.
In this embodiment, the abnormal image feature of the noise spectrogram of the to-be-measured component in the abnormal state can be determined in advance through an early experiment. When the working state of the component to be detected is monitored at a later stage, a noise frequency spectrogram and a vibration map can be generated according to noise information and vibration information of the component to be detected, which are monitored by a microphone, an acceleration sensor and the like, the noise frequency spectrogram and the vibration map are displayed through a screen, a screenshot is carried out on a displayed image in the display process of the noise frequency spectrogram and the vibration map, and then whether abnormal image characteristics exist in the intercepted image or not is checked, and whether the working state of the component to be detected is abnormal or not is judged according to the screenshot. In the scheme, the noise spectrogram corresponding to noise information sent by the component to be detected can be more visually seen by a worker, the worker can conveniently know the noise condition of the component to be detected in real time, the mode of judging whether the working state is abnormal or not by image comparison makes up the blank that certain faults cannot be monitored by numerical value comparison analysis, for example, when abnormal sound of a supercharger in a vehicle is monitored, when air leakage noise is generated by air leakage of a rubber hose on the supercharger, the noise frequency displayed in the noise spectrogram accords with the frequency range under the normal working state of the supercharger, the faults detected by the supercharger cannot be monitored by a frequency data comparison method, but the frequency spectrum characteristic can be known to be a wide frequency according to the image of the frequency spectrum, so that the possibility of air leakage of the rubber hose on the supercharger can be judged, therefore, the technical scheme can further judge more types of fault reasons through the analysis of the image.
In any one of the embodiments of the first aspect, the component under test is preferably a turbocharger of a vehicle, and the step of monitoring noise information and vibration information generated by the component under test during operation includes: arranging an acceleration sensor on a vehicle to acquire vibration information of the turbocharger through the acceleration sensor; arranging a microphone on the vehicle to collect noise information of the turbocharger through the microphone; and acquiring and collecting vibration information acquired by the acceleration sensor and noise information acquired by the microphone through the data acquisition unit. In the technical scheme, the part to be tested is a turbocharger of the vehicle, so that the working state of the turbocharger of the vehicle can be monitored based on the method. Specifically, in order to monitor the working state of the turbocharger, an acceleration sensor can be arranged on the vehicle to acquire vibration information of the turbocharger in real time; the microphone is arranged on the vehicle to acquire the noise information of the turbocharger in real time, and the vibration information and the noise information are acquired and collected through the data collection unit, so that the vehicle can monitor the working state of the turbocharger in real time in the driving process, and when noise occurs, the reason of the noise can be quickly determined, so that timely repair can be performed, and accidents are avoided.
Further, when the working state of the component to be tested is abnormal, a fault report is generated, wherein the fault report at least comprises a noise frequency spectrum diagram and a vibration diagram. In order to facilitate the viewing of the driving, the fault report may be presented in the form of an image so that a timely countermeasure can be taken when the supercharger malfunctions. The fault report at least comprises a noise frequency spectrum diagram and a vibration diagram, so that the noise frequency spectrum diagram and the vibration diagram can be observed to analyze the fault reason when the fault occurs, in addition, the fault report can also comprise one or more of fault time, the model of the component to be detected and vehicle basic information according to the requirement, so that when the component to be detected is maintained in the later period, maintenance personnel and the like can further determine the time of the fault and the model of the component to be detected according to the fault report. In addition, in order to repair in time, corresponding solutions can be provided on the fault report, namely different solutions are generated according to different fault types, so that maintenance personnel and the like can quickly select a proper solution to solve the fault.
As shown in fig. 5, an embodiment of the second aspect of the present application provides a system for monitoring a state of a component under test, including: the acceleration sensor 10 is used for acquiring vibration information of the component 60 to be detected; a microphone 20 for collecting noise information of the component to be measured 60; an alarm prompting device 30 for giving an alarm prompt when the working state of the component to be tested 60 is abnormal; the processor 70 includes a memory and a processing unit, the memory stores executable instructions, and the processor implements the monitoring method provided by the embodiment of the first aspect of the present application when executing the executable instructions stored in the memory. In this embodiment, the system for monitoring the state of the component to be tested further includes: and the display 50 is used for displaying information, and the information displayed by the display 50 comprises a noise spectrogram and a vibration spectrogram. In the technical scheme, a noise spectrogram and a vibration chart are displayed; the noise spectrogram corresponding to the noise information sent by the component to be tested 60 can be seen more visually by a worker, and people can know the noise condition of the component to be tested 60 in real time conveniently.
As shown in fig. 6, an embodiment of the third aspect of the present application provides a vehicle, which includes a turbocharger 40, an acceleration sensor 10, a microphone 20, an alarm prompting device 30, and a processor 70, where the sensor 10 is used to collect vibration information of the turbocharger 40; the microphone 20 is used for acquiring noise information of the turbocharger 40, the processor 70 includes a memory and a processing unit, executable instructions are stored in the memory, and the steps of the method for monitoring the state of the component to be tested provided by any one of the embodiments of the first aspect of the present application are implemented when the processor executes the executable instructions stored in the memory, so that the vehicle provided by the present invention can monitor the turbocharger in a working state in real time, and when the working state of the turbocharger 40 is abnormal, the alarm prompting device 30 gives an alarm prompt. The structure of the processor 70 in the vehicle and condition monitoring system will be described with reference to fig. 7.
As shown in fig. 7, the processor 70 includes a central processing unit 701 that can perform various appropriate actions and processes in accordance with computer program instructions stored in a read only memory 702 or computer program instructions loaded from a storage unit 708 into a random access memory 703. In the random access memory 703, various programs and data necessary for the operation of the processor 70 can also be stored. The central processing unit 701, the read only memory 702 and the random access memory 703 are connected to each other by a bus 704. An input/output interface 705 is also connected to the bus 704.
A number of components in the processor 70 are connected to the input/output interface 705, including: an input unit 706 such as a keyboard, a mouse, or the like; an output unit 707 such as various types of displays, speakers, and the like; a storage unit 708 such as a magnetic disk, optical disk, or the like; and a communication unit 709 such as a network card, modem, wireless communication transceiver, etc. The communication unit 709 allows the processor 70 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The central processing unit 701 performs the various methods and processes described above. For example, the monitoring method in the first aspect embodiment may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as the storage unit 708. In some embodiments, some or all of the computer program may be loaded and/or installed onto processor 70 via read only memory 702 and/or communications unit 709. When the computer program is loaded into the random access memory 703 and executed by the central processing unit 701, one or more steps of the monitoring method described above may be performed. Alternatively, in other embodiments, the central processing unit 701 may be configured by any other suitable means to perform the monitoring method in the first aspect embodiment. This monitoring system can be real-time carries out real-time monitoring to the part to be measured under operating condition, and whether the operating condition of judging the part to be measured according to noise information and vibration information monitored is unusual, this system makes the part to be measured in the monitoring process, need not unload the part to be measured and adopt specific monitoring machine to monitor, make when the part to be measured works, carry out real-time analysis through noise information and the vibration information to the production in the working process, just can judge whether the part to be measured breaks down, therefore, make the monitoring method more have convenience, flexibility. In addition, in the embodiment, when the abnormal working state of the component to be detected is monitored, an alarm prompt can be given immediately, so that people can receive the abnormal information of the component to be detected conveniently in the first time, and the damage of the component to be detected caused by the long-time abnormal working state is avoided.
Embodiments of the fourth aspect of the present application provide a computer storage medium, on which a computer program is stored, which, when executed, implements the steps of the method for monitoring the state of a component under test of an embodiment of the first aspect of the present application. In this embodiment, a computer-readable storage medium is provided, where a processor needs to implement the method for monitoring the state of the component to be tested provided in the embodiment of the first aspect, where the computer program needs to be stored in a computer-readable storage medium, and the computer-readable storage medium ensures that the computer program can be executed by the processor, so as to implement that the monitoring method can quickly monitor the working state of the component to be tested.
In embodiments according to the invention, the terms "first", "second", "third" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present invention can be understood by those of ordinary skill in the art according to specific situations.
Further, while operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the invention. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.
The above is only a preferred embodiment according to the present invention, and is not intended to limit the embodiment according to the present invention, and various modifications and variations may be made to the embodiment according to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiment according to the present invention should be included in the protection scope of the embodiment according to the present invention.
Claims (8)
1. A method for monitoring a condition of a part under test, comprising:
monitoring noise information and vibration information generated by a component to be detected in the working process;
judging whether the working state of the component to be detected is abnormal or not based on the monitored noise information and the vibration information;
when the working state of the component to be detected is abnormal, alarming and prompting are carried out; the judging the working state of the component to be tested based on the monitored noise information and the vibration information comprises the following steps:
forming a noise spectrogram based on the noise information;
forming a vibration map based on the vibration information;
extracting noise characteristic information and vibration characteristic information of the component to be detected according to the noise frequency spectrogram and the vibration spectrogram, comparing the extracted noise characteristic information and the extracted vibration characteristic information with corresponding preset noise characteristic information and preset vibration characteristic information, and judging whether the working state of the component to be detected is abnormal or not according to a comparison result;
the noise characteristic information and the vibration characteristic information of the to-be-detected component are extracted according to the noise frequency spectrum diagram and the vibration diagram, the extracted noise characteristic information and the extracted vibration characteristic information are compared with the corresponding preset noise characteristic information and preset vibration characteristic information, and whether the working state of the to-be-detected component is abnormal or not is determined according to the comparison result, and the method comprises the following steps of:
acquiring a preset vibration acceleration interval and a preset noise frequency interval;
determining the current noise frequency of the component to be tested in the working process according to the noise spectrogram;
determining the current vibration acceleration of the part to be tested in the working process according to the vibration diagram;
when the current noise frequency is in the preset noise frequency interval, and the current vibration acceleration is in the preset vibration acceleration interval, determining that the working state of the component to be tested is normal, and when the current noise frequency is not in the preset noise frequency interval and/or the current vibration acceleration is not in the preset vibration acceleration interval, determining that the working state of the component to be tested is abnormal.
2. The method for monitoring the state of the to-be-tested component according to claim 1, wherein the extracting noise characteristic information and vibration characteristic information of the to-be-tested component according to the noise spectrogram and the vibration map, comparing the extracted noise characteristic information and vibration characteristic information with corresponding preset noise characteristic information and preset vibration characteristic information, and determining whether the working state of the to-be-tested component is abnormal according to the comparison result comprises:
acquiring abnormal image characteristics of the to-be-detected component in the noise spectrogram in an abnormal state;
displaying the noise spectrogram;
and carrying out screen interception on the displayed noise spectrogram, monitoring whether the intercepted screen image has the abnormal image characteristics, determining that the working state of the component to be detected is abnormal when the abnormal image characteristics exist in the intercepted screen image, and determining that the working state of the component to be detected is normal when the abnormal image characteristics do not exist in the intercepted screen image.
3. The method for monitoring the condition of a part under test according to claim 1,
the part to be measured is the turbo charger of vehicle, the step of noise information and the vibration information that the part to be measured produced in the course of the work of monitoring includes:
arranging an acceleration sensor on a vehicle to acquire vibration information of the turbocharger through the acceleration sensor;
arranging a microphone on a vehicle to collect noise information of the turbocharger through the microphone;
and acquiring and collecting vibration information acquired by the acceleration sensor and noise information acquired by the microphone through a data acquisition unit.
4. The method for monitoring the condition of a component under test according to claim 1, further comprising:
and generating a fault report when the working state of the component to be tested is abnormal, wherein the fault report at least comprises the noise frequency spectrogram and the vibration chart.
5. A system for monitoring the condition of a component under test, comprising:
the acceleration sensor is used for acquiring vibration information of the component to be detected;
the microphone is used for acquiring noise information of the component to be detected;
the alarm prompting device is used for giving an alarm prompt when the working state of the component to be tested is abnormal;
processor comprising a memory and a processing unit, the memory having stored therein executable instructions, the processor when executing the executable instructions implementing the steps of the method of condition monitoring of a component under test as claimed in any one of claims 1 to 4.
6. The system for monitoring the condition of a component under test according to claim 5, further comprising:
the display is used for displaying information, and the information displayed by the display comprises a noise spectrogram and a vibration spectrogram.
7. A vehicle, characterized by comprising:
a turbocharger;
the acceleration sensor is used for acquiring vibration information of the turbocharger;
the microphone is used for acquiring noise information of the turbocharger;
the alarm prompting device is used for giving an alarm prompt when the working state of the turbocharger is abnormal;
processor comprising a memory and a processing unit, the memory having stored therein executable instructions, the processor implementing the steps of the method of monitoring the condition of a component under test as claimed in any one of claims 1 to 4 when executing the executable instructions stored in the memory.
8. A computer storage medium, having stored thereon a computer program which, when executed, carries out the steps of the method of monitoring the condition of a component under test as claimed in any one of claims 1 to 4.
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| CN113942461A (en) * | 2021-10-22 | 2022-01-18 | 广州小鹏汽车科技有限公司 | Fault detection method, device and readable storage medium |
| CN114262001B (en) * | 2021-12-07 | 2022-12-06 | 佛山市美的清湖净水设备有限公司 | Water purifier and noise monitoring method thereof |
| CN114542445A (en) * | 2022-02-15 | 2022-05-27 | 广州市百福电气设备有限公司 | Pump operation state diagnosis method, system, computer device and storage medium |
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| US20070283695A1 (en) * | 2006-06-13 | 2007-12-13 | Honeywell International, Inc. | System and method for turbocharger early failure detection and avoidance |
| JP2011157881A (en) * | 2010-02-01 | 2011-08-18 | Toyota Motor Corp | Control device of supercharger with motor |
| CN103424253B (en) * | 2013-07-31 | 2015-09-30 | 博格华纳汽车零部件(宁波)有限公司 | Turbosupercharger on-line measuring device and method |
| US20160201611A1 (en) * | 2015-01-08 | 2016-07-14 | General Electric Company | Sensor for Determining Engine Characteristics |
| JP6772945B2 (en) * | 2017-04-24 | 2020-10-21 | いすゞ自動車株式会社 | Turbocharger abnormality determination device and control device |
| CN107101834B (en) * | 2017-05-12 | 2019-05-21 | 哈尔滨工程大学 | Turbo-charger surge prediction meanss and prediction technique based on characteristic frequency |
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