CN216717593U - Automobile abnormal sound detection system and automobile abnormal sound detection device - Google Patents

Abstract

The utility model discloses an automobile abnormal sound detection system and an automobile abnormal sound detection device, wherein a sensor module, a communication module and an upper computer are arranged, the sensor module comprises a vibration acceleration sensor or a sound sensor and is arranged at a part to be detected of an abnormal sound vehicle and used for acquiring abnormal sensing data of the abnormal sound vehicle; the communication module is connected with the sensor module and the upper computer, the upper computer is used for displaying the abnormal sensing data of the abnormal sound vehicle in the running state and the normal sensing data of the part to be detected of the normal vehicle in the running state, and a detector can determine the source of the abnormal sound more conveniently and quickly by comparing the abnormal sensing data and the normal sensing data, so that the detection accuracy, safety and detection efficiency are improved, and the method can be widely applied to the technical field of automobiles.

Description

A vehicle abnormal sound detection system and a vehicle abnormal sound detection device

technical field

The utility model relates to the technical field of automobiles, in particular to a vehicle abnormal sound detection system and a vehicle abnormal sound detection device.

Background technique

As the driving time of the car increases or errors occur in the production process, abnormal noises will occur in the car. Therefore, the inspectors need to test the abnormal noise to determine the specific source of the abnormal noise for subsequent adjustment and maintenance. The existing abnormal sound problem judgment method mainly relies on the tester to subjectively judge the possible abnormal sound position based on the size of the sound through the human ear or a wired stethoscope. However, there are large differences in the orientation and sound volume heard by different people, and the accuracy rate is low. , and the use of wired stethoscope to identify the abnormal sound of chassis parts, there is a potential safety hazard; and after using the human ear or wired stethoscope to determine the suspected abnormal sound parts or parts, it is necessary to verify the abnormal sound source one by one through the replacement of the parts, and replace the equipment. The verification time is long and the status of abnormal noise is easily destroyed during the replacement process, resulting in the inability to find the source of the abnormal noise in the end, with low accuracy and efficiency.

Utility model content

In order to solve at least one of the above technical problems, the purpose of the present invention is to provide a vehicle abnormal sound detection system and a vehicle abnormal sound detection device, which can improve the accuracy and efficiency.

The technical scheme adopted by the utility model is:

A vehicle abnormal sound detection system, comprising:

a sensor module, which is arranged at the to-be-detected part of the abnormal noise vehicle, and is used to obtain abnormal sensing data of the abnormal noise vehicle; the sensor module includes a vibration acceleration sensor or a sound sensor;

a communication module, connected with the sensor module;

The host computer is connected with the communication module and is used for displaying the abnormal sensing data of the abnormal noise vehicle in the running state and the normal sensing data of the to-be-detected part of the normal vehicle in the running state.

Further, the to-be-detected part includes a sheet metal part or a chassis part.

Further, the communication module is a WIFI module or a Bluetooth module.

Further, the host computer includes a processing unit and a display unit, the processing unit is connected with the communication module and the display unit, and the display unit is used for displaying the abnormal transmission of the abnormal noise vehicle in the driving state. The sensor data and the normal sensor data of the part to be detected of the normal vehicle in the driving state.

Further, the vibration acceleration sensor is a MEMS capacitive three-axis vibration acceleration sensor.

The embodiment of the present utility model also provides a vehicle abnormal noise detection device, comprising:

a first sensor unit, which is arranged at the to-be-detected part of the abnormal noise vehicle, and is used for acquiring abnormal sensing data, and the first sensor unit is a vibration acceleration sensor or a sound sensor;

The second sensor unit is arranged at the to-be-detected part of the normal vehicle and is used to obtain normal sensing data, the second sensor unit is a vibration acceleration sensor or a sound sensor; the sensor type of the second sensor unit is the same as that of the first sensor unit. The sensor type of the sensor unit is the same;

a communication module, connected with the first sensor unit and the second sensor unit;

The upper computer is connected to the communication module, and is used for displaying the abnormal sensing data of the abnormal noise vehicle in a driving state and the normal sensing data of the normal vehicle in a driving state.

Further, the to-be-detected part includes a sheet metal part or a chassis part.

Further, the communication module is a WIFI module or a Bluetooth module.

Further, the vibration acceleration sensor is a MEMS capacitive three-axis vibration acceleration sensor.

The beneficial effect of the utility model is that: by setting a sensor module, a communication module and a host computer, the sensor module includes a vibration acceleration sensor or a sound sensor and is arranged at the to-be-detected part of the abnormal noise vehicle, which is used to obtain the abnormal noise transmission of the abnormal noise vehicle. The communication module is connected to the sensor module and the host computer, and the host computer is used to display the abnormal sensing data of the abnormal noise vehicle in the driving state and the normal transmission of the parts to be detected of the normal vehicle in the driving state. By comparing the abnormal sensor data with the normal sensor data, the inspection personnel can more easily and quickly determine the source of abnormal noise, and improve the detection accuracy, safety and detection efficiency.

Description of drawings

1 is a schematic diagram of a vehicle abnormal noise detection system according to a specific embodiment of the present invention;

2 is a schematic diagram of a vehicle abnormal noise detection device according to a specific embodiment of the present invention.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

The terms "first", "second", "third" and the like in the description and claims of the present application and the drawings are only used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion. Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The present utility model will be further explained and described below in conjunction with the accompanying drawings and specific embodiments of the description.

Referring to FIG. 1 , an embodiment of the present invention provides a vehicle abnormal noise detection system, which includes a sensor module, a communication module, and a host computer.

Referring to FIG. 1 , in an embodiment of the present invention, a sensor module is disposed on a vehicle with abnormal noise, and is used to acquire abnormal sensing data of the vehicle with abnormal noise. It should be noted that the abnormal noise vehicle refers to the vehicle that emits abnormal noise and needs to further determine the specific abnormal noise location, and the abnormal sensing data refers to the sensing data obtained by the sensor module from the abnormal noise vehicle. Optionally, the sensor module includes a vibration acceleration sensor or a sound sensor, and the vibration acceleration sensor includes but is not limited to a MEMS capacitive three-axis vibration acceleration sensor, which ensures that the sensor is miniaturized and abnormal sensing data can be wirelessly transmitted through the communication module; the sound sensor Including but not limited to sensors or microphones that can detect sound.

In the embodiment of the present invention, the sensor module is arranged on the part to be detected of the abnormal noise vehicle, and the part to be detected includes but is not limited to the sheet metal parts or chassis parts of the whole vehicle, such as the subframe of the chassis, the stabilizer bar, and the door of the vehicle body. and so on, so as to obtain abnormal sensing data of sheet metal parts or chassis parts, which can be used to subsequently determine which sheet metal part or which chassis part has the abnormal noise. It should be noted that the vibration acceleration sensor is arranged in the part to be detected, and the vibration acceleration of the location where the vibration acceleration sensor is arranged is obtained, which is unique, and can be compared with the sound sensor collected by the sound sensor in the area where the sound sensor is arranged and the sound in other areas. The sensor data of the sensor arrangement position can be acquired more accurately, so that the abnormal noise source can be more accurately identified later.

Referring to FIG. 1 , in the embodiment of the present invention, the communication module is connected to the sensor module and the host computer in communication, and the communication module is used to transmit abnormal sensing data to the host computer in real time. Optionally, the communication module includes but is not limited to a WIFI module or a Bluetooth module.

In the embodiment of the present invention, the host computer includes a processing unit (not shown) and a display unit (not shown). Specifically, the processing unit is connected with the communication module and the display unit. It should be noted that the abnormal noise vehicle is in the driving state when the abnormal noise is detected. At this time, the processing unit receives the abnormal sensor data of the abnormal noise vehicle in the driving state and processes it. After processing, the abnormal sensor data is processed. transmitted to the display unit for display. Specifically, the display unit also displays normal sensing data of a normal vehicle in a driving state. It can be understood that the normal sensing data is the sensing data of the to-be-detected part of the normal vehicle, that is, the to-be-detected part corresponds to the to-be-detected part of the abnormal noise vehicle. For example, when the abnormal noise vehicle's to-be-detected part is the auxiliary part of the chassis frame, the part to be detected of a normal vehicle is the subframe of the chassis, when the part to be detected of the abnormal noise vehicle is the stabilizer bar, then the part to be detected of the normal vehicle is the stabilizer bar; at the same time, when the sensor module is a vibration acceleration sensor, The normal sensing data is also obtained through the vibration acceleration sensor. When the sensor module is a sound sensor, the normal sensing data is also obtained through the sound sensor. In the embodiment of the present invention, by displaying the abnormal sensing data of the abnormal noise vehicle in the driving state and the normal sensing data of the normal vehicle in the driving state, the inspector can determine the source of the abnormal noise, and by changing the settings of the sensor module The location can be used by inspectors to continuously determine abnormal sensor data at different locations, so as to easily and accurately determine the source of abnormal noise. It should be noted that the normal sensing data of the to-be-detected part of the normal vehicle in the driving state, that is, the normal sensing data of the to-be-detected part of the normal vehicle in the driving state.

It should be noted that the processing unit may have the functions of digital-to-analog conversion, analog-to-digital conversion, data generation, and comparative analysis. After processing the received abnormal sensing data, a corresponding numerical table or waveform graph is generated and displayed on the display unit; or further , compare and analyze the abnormal sensing data and the normal sensing data to determine the detection result. Optionally, the host computer may also include a storage unit, which stores the normal sensing data of the normal vehicle in the driving state, and retrieves it from the storage unit through the processing unit and displays it on the display unit, or may not include the storage unit, and stores the data on the display unit. The corresponding vibration acceleration sensor or sound sensor is installed in the normal vehicle, and is also transmitted to the processing unit through the communication module for processing and displayed in real time on the display unit. It should be noted that there is no improvement in methods and functions such as digital-to-analog conversion, analog-to-digital conversion, and data generation in the present invention, and the processing unit can be implemented by using existing modules.

Referring to FIG. 2 , optionally, an embodiment of the present invention further provides a vehicle abnormal noise detection device, which includes a first sensor unit, a second sensor unit, a communication module and a host computer.

Referring to FIG. 2 , in the embodiment of the present invention, the first sensor unit and the second sensor unit constitute a sensor module. The first sensor unit is arranged on the to-be-detected part of the abnormal noise vehicle for acquiring abnormal sensing data; the second sensor unit is arranged on the to-be-detected part of the normal vehicle for acquiring normal sensing data. Optionally, the first sensor unit is a vibration acceleration sensor or a sound sensor, the second sensor unit is a vibration acceleration sensor or a sound sensor, and the sensor type of the second sensor unit is the same as that of the first sensor unit, for example, the first sensor If the unit is a vibration acceleration sensor, the second sensor unit is a vibration acceleration sensor, the first sensor unit is a sound sensor, and the second sensor unit is a sound sensor.

Referring to FIG. 2 , in the embodiment of the present invention, the communication module is connected with the first sensor unit and the second sensor unit.

The upper computer is connected to the communication module, and includes the above-mentioned processing unit (not shown) and a display unit (not shown). Specifically, when both the abnormal noise vehicle and the normal vehicle are in the driving state, the processing unit receives and processes the abnormal sensor data of the abnormal noise vehicle in the driving state and the normal sensor data of the normal vehicle in the driving state transmitted by the communication module. After processing, it can be displayed by the display unit. For example, abnormal sensing data and normal sensing data can be displayed in real time through a table or waveform diagram.

It should be noted that the running state refers to the engine starting or the engine starting and the vehicle moving a certain distance.

The embodiment of the utility model displays the normal sensing data and the abnormal sensing data on the host computer at the same time, so that the detection personnel can quickly lock the abnormal noise source, which is convenient and quick, and can improve the efficiency and accuracy.

The above is a specific description of the preferred implementation of the present utility model, but the present utility model is not limited to the embodiments, and those skilled in the art can also make various equivalent deformations or replacements under the premise of not violating the spirit of the present utility model. , these equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims (9)

1. a vehicle abnormal sound detection system, is characterized in that, comprises: a sensor module, which is arranged at the to-be-detected part of the abnormal noise vehicle, and is used to obtain abnormal sensing data of the abnormal noise vehicle; the sensor module includes a vibration acceleration sensor or a sound sensor; a communication module, connected with the sensor module; The host computer is connected with the communication module and is used for displaying the abnormal sensing data of the abnormal noise vehicle in the running state and the normal sensing data of the to-be-detected part of the normal vehicle in the running state. 2 . The vehicle abnormal noise detection system according to claim 1 , wherein the parts to be detected comprise sheet metal parts or chassis parts. 3 . 3 . The vehicle abnormal noise detection system according to claim 1 , wherein the communication module is a WIFI module or a Bluetooth module. 4 . 4. The vehicle abnormal noise detection system according to claim 1, wherein the host computer comprises a processing unit and a display unit, the processing unit is connected with the communication module and the display unit, and the display unit It is used to display the abnormal sensing data of the abnormal noise vehicle in the running state and the normal sensing data of the to-be-detected part of the normal vehicle in the running state. 5 . The vehicle abnormal noise detection system according to claim 1 , wherein the vibration acceleration sensor is a MEMS capacitive three-axis vibration acceleration sensor. 6 . 6. A vehicle abnormal sound detection device, characterized in that: comprising: a first sensor unit, which is arranged at the to-be-detected part of the abnormal noise vehicle, and is used for acquiring abnormal sensing data, and the first sensor unit is a vibration acceleration sensor or a sound sensor; The second sensor unit is arranged at the to-be-detected part of the normal vehicle and is used to obtain normal sensing data, the second sensor unit is a vibration acceleration sensor or a sound sensor; the sensor type of the second sensor unit is the same as that of the first sensor unit. The sensor type of the sensor unit is the same; a communication module, connected with the first sensor unit and the second sensor unit; The upper computer is connected to the communication module, and is used for displaying the abnormal sensing data of the abnormal noise vehicle in a driving state and the normal sensing data of the normal vehicle in a driving state. 7 . The vehicle abnormal noise detection device according to claim 6 , wherein the parts to be detected comprise sheet metal parts or chassis parts. 8 . 8 . The vehicle abnormal noise detection device according to claim 6 , wherein the communication module is a WIFI module or a Bluetooth module. 9 . 9 . The vehicle abnormal noise detection device according to claim 6 , wherein the vibration acceleration sensor is a MEMS capacitive three-axis vibration acceleration sensor. 10 .

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